WO2007007632A1 - 環境制御装置、環境制御方法、環境制御プログラム及び環境制御プログラムを記録したコンピュータ読み取り可能な記録媒体 - Google Patents
環境制御装置、環境制御方法、環境制御プログラム及び環境制御プログラムを記録したコンピュータ読み取り可能な記録媒体 Download PDFInfo
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- WO2007007632A1 WO2007007632A1 PCT/JP2006/313477 JP2006313477W WO2007007632A1 WO 2007007632 A1 WO2007007632 A1 WO 2007007632A1 JP 2006313477 W JP2006313477 W JP 2006313477W WO 2007007632 A1 WO2007007632 A1 WO 2007007632A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M21/02—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/0245—Detecting, measuring or recording pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/40—Detecting, measuring or recording for evaluating the nervous system
- A61B5/4029—Detecting, measuring or recording for evaluating the nervous system for evaluating the peripheral nervous systems
- A61B5/4035—Evaluating the autonomic nervous system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
- G16H50/20—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/02—Inhalators with activated or ionised fluids, e.g. electrohydrodynamic [EHD] or electrostatic devices; Ozone-inhalators with radioactive tagged particles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
- A61M2021/0027—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the hearing sense
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
- A61M2021/0044—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the sight sense
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
- A61M2021/0044—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the sight sense
- A61M2021/005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the sight sense images, e.g. video
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
- A61M2021/0066—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus with heating or cooling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/02—Gases
- A61M2202/0208—Oxygen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3368—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
- Y10T436/25875—Gaseous sample or with change of physical state
Definitions
- the present invention relates to an environment control device, an environment control method, an environment control program, and a computer readable recording of an environment control program for estimating the user's state based on biological information and controlling the living environment.
- the present invention relates to a recording medium.
- FIG. 60 is a diagram showing a waveform of an acceleration pulse wave described in Patent Document 1.
- the acceleration pulse wave is composed of five element waves: El, E2, E3, E4, and E5. Since the vertex A of the elementary wave E1 coincides with the beginning of the fingertip plethysmogram diastolic wave, the time required from the vertex A to the vertex E coincides with the contraction time axis length of the heart.
- Element wave E1 is a positive wave that is convex upward with respect to the baseline
- element wave E2 is a negative wave that is convex downward with respect to the baseline
- the next element waves E3, E4, and E5 are physiological It is an elemental wave that changes to a positive wave or a negative wave depending on the state, and has a strong correlation with the age of the user.
- Patent Document 2 the amount of heat generated by the heating means or the amount of air blown by the air blowing means is irregular in time for the purpose of maintaining a good psychological state and feeling of the user.
- a hot air heater has been proposed that can be controlled to maintain a sense of warmth and to maintain an effect on the autonomic nerves to improve relaxation.
- FIG. 61 is a block diagram showing a configuration of the hot air heater described in Patent Document 2.
- the heating unit 1002 is configured by a heat source such as kerosene or a heater.
- a temperature sensor 1003 for detecting temperature is provided in the vicinity of the heating unit 1002, and the detected temperature information is transmitted to the control unit 1004.
- the control unit 1004 heats the irregular signal generated by the irregular signal generation unit 1005 and the blower unit 1001 at an appropriate timing determined according to the timer signal of the timer 1006 and the detected temperature signal of the temperature sensor 1003. Output to the unit 1002, and the amount of air blown by the air blowing unit 1001 and the amount of heating by the heating unit 1002 were controlled.
- the living environment temperature hereinafter referred to as room temperature
- the living environment humidity hereinafter referred to as humidity
- the outside temperature of the living environment hereinafter referred to as the outside temperature
- the environmental control equipment was controlled by detecting environmental physical quantities such as solar radiation.
- chaos analysis is performed on the user's biological information to There has been proposed a method for estimating a user state such as a state, a relaxed state, or an excited state, and controlling an environmental control device based on the estimation result.
- Patent Document 3 the skin temperature of a user's (subject's) fingertip or the like is detected, and the detected skin temperature is evaluated by chaos analysis or the like, and the user's sense of tension, relaxation, or excitement is determined.
- Multimedia device control devices that control multimedia devices by estimation have been proposed.
- Patent Document 4 an environment control device that controls environmental conditions by estimating a user's psychological state or physiological state by performing chaos analysis on time series data of user's (human) movement. has been proposed.
- Patent Document 5 the user's tiredness to a gaming machine is obtained using the Lyapunov exponent obtained by chaos analysis of pulse waves, heartbeats, etc. collected from a user (user) of a gaming machine such as a pachinko machine.
- An electronic device has been proposed that changes the game machine's response by estimating state, excitement, consciousness concentration, or distraction.
- Patent Document 6 a pulse wave detection device is attached to the surface of the bathroom remote controller, and when the user (bath) touches the fingertip, the pulse wave data is detected and the pulse wave data different from the normal is detected.
- a bath device has been proposed that encourages rest, notifies family members, and controls to lower the hot water temperature.
- Patent Document 7 when the human power working or studying indoors is not effective, the activity of the person's autonomic nerve, particularly the sympathetic nerve, is activated, Using the phenomenon that the sweating volume and pulse rate, which are the nervous system physiology, increase and the skin temperature decreases due to blood rising on the head, etc., air conditioning is performed according to changes in the autonomic nervous system physiology. Technologies that improve the efficiency of human work and study have been proposed.
- Patent Document 8 what must be considered when collecting biological information is the ability to simply implement as a system and how to collect biological information without making the user uncomfortable. Therefore, a technique for estimating a person's psychological state, mainly warmth, based on the amplitude of a person's pulse wave that can be judged to be least likely to cause discomfort has been proposed.
- Patent Documents 3 to 5 a force in which the user's state is estimated by chaos analysis.
- a sufficient period of time for estimating the user's state by chaos analysis for example, several minutes to about 15 minutes. Since time series data of information is necessary, the user's state cannot be accurately estimated until the sufficient period of time has passed since the collection of biometric information was started. There is a problem that proper stimulation cannot be given.
- chaos analysis is applied to the control of equipment that constitutes the user's living environment, such as air conditioning equipment, lighting equipment, video equipment, and audio equipment, there are cases where time-series data for a sufficient period cannot be obtained. Since it is assumed, the problem is how accurately the user's state can be estimated during this period.
- Patent Documents 3 to 6 various methods and apparatuses for estimating a user's state by chaos analysis of the user's biological information and the like have been proposed. It is still in the process of research and development on what kind of user's state can be estimated through cost analysis.
- Patent Document 3 described above it is possible to estimate the user's tension, relaxation, and excitement state by performing a chaos analysis on the user's skin temperature. Feel the feeling! / What are you going to do? / A cunning nephew.
- Patent Document 5 it is assumed that the user's bored state, excitement state, consciousness concentration, or distraction state can be estimated by performing chaos analysis on the user's pulse wave, heartbeat, etc. Based on the specific correlation between the Lyapunov exponent obtained by chaos analysis and the user's condition, There is no disclosure.
- the response to air conditioning can be changed, a comfortable feeling for chaotic analysis and thermal stimulation is hot and cold! / None disclosing! / ⁇ .
- Patent Document 6 describes that control is performed to lower the hot water temperature when pulse wave data that is different from normal is detected. This is because the user's abnormality is estimated from the pulse wave. It controls the temperature, and if the user feels comfortable with the thermal stimulation, it does not control the hot water temperature by estimating the thermal sensation.
- Patent Document 7 a plurality of autonomic nervous system physiological quantities are collected as biological information used for estimating a user's psychological state. In this case, a number of physiological quantities are measured at a time. Therefore, a plurality of sensors must be installed as a system, which is not easy in practical use.
- the psychological state of a person is estimated by comprehensively judging the measurement results of these multiple autonomic nervous systems, but there is no clear disclosure about a specific method for making a comprehensive judgment. No.
- Patent Document 8 regarding the technology for estimating a human thermal sensation by a pulse wave which is one piece of biological information, it has been proposed to use the amplitude characteristic of the pulse wave with respect to the human thermal sensation. Considering that the absolute value of the amplitude is completely different for each individual, it is impossible to avoid the influence of individual differences, and the accuracy of the estimation deteriorates.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-351184 (Page 7, Figure 2)
- Patent Document 2 Japanese Patent Laid-Open No. 2001-141306 (Page 10, Figure 1)
- Patent Document 3 Japanese Patent Laid-Open No. 7-299040
- Patent Document 4 Japanese Patent No. 2816799
- Patent Document 5 Japanese Unexamined Patent Publication No. 2000-354683
- Patent Document 6 Japanese Patent Laid-Open No. 2003-227654
- Patent Document 7 Japanese Patent Laid-Open No. 2003-42509
- Patent Document 8 Japanese Patent No. 2833082
- the present invention has been made to solve the above-described problem, and can provide an environment control device that can surely make the user feel comfortable and can maintain the comfortable state.
- Environment control method, environment control program, and environment control program recorded An object of the present invention is to provide a computer-readable recording medium.
- An environment control device performs chaos analysis on a biological information acquisition unit that acquires time-series data of a user's biological information, and the time-series data acquired by the biological information acquisition unit. Based on the parameter calculation means for calculating the parameters relating to biological information, the estimation means for estimating the user's comfort based on the parameters calculated by the parameter calculation means, and the estimation result by the estimation means, A stimulus control means for controlling the generation of the stimulus to be applied.
- An environment control method includes a biological information acquisition step of acquiring time-series data of a user's biological information, and the time-series data acquired in the biological information acquisition step.
- a parameter calculation step for calculating parameters related to biological information through chaos analysis, an estimation step for estimating a user's comfort based on the parameters calculated in the parameter calculation step, and an estimation result by the estimation step
- a stimulus control step for controlling generation of a stimulus to be given to the user.
- An environment control program includes a biological information acquisition unit that acquires time-series data of a user's biological information, and the time-series data acquired by the biological information acquisition unit. Based on parameter calculation means for calculating parameters related to biological information through chaos analysis, estimation means for estimating user comfort based on the parameters calculated by the parameter calculation means, and estimation results by the estimation means, The computer functions as a stimulus control means for controlling the generation of the stimulus given to the user.
- a computer-readable recording medium in which an environment control program according to another aspect of the present invention is recorded is obtained by a biological information acquisition unit that acquires time-series data of a user's biological information, and the biological information acquisition unit. Further, parameter calculation means for calculating a parameter relating to biological information by performing chaos analysis on the time series data, estimation means for estimating a user's comfort based on the parameter calculated by the parameter calculation means, and the estimation means Based on the estimation result by, the environment control program that makes the computer function as the stimulus control means for controlling the generation of the stimulus given to the user is recorded.
- the parameters related to the biological information are calculated by performing chaos analysis on the time-series data of the biological information of the user. Based on the calculated parameters, The user's feeling of comfort is estimated, and the generation of stimuli given to the user is controlled based on the estimation result. That is, when an estimation result that deteriorates the user's comfort is obtained, the user can be stimulated to improve the comfort.
- a feeling of comfort is estimated based on parameters calculated by performing chaos analysis on the time-series data of the user's biological information, and generation of stimuli given to the user is controlled based on the estimation result. Therefore, it is possible to surely make the user feel comfortable and to maintain the comfortable state.
- An environment control device is based on a biological information acquisition unit that acquires time-series data of a user's biological information, and a change in the time-series data acquired by the biological information acquisition unit.
- the estimation means for estimating the user's comfort based on the parameters calculated by the parameter calculation means, and the estimation result by the estimation means, Stimulus control means for controlling the generation of the stimulus.
- An environment control method includes a biological information acquisition step of acquiring time-series data of a user's biological information, and the time-series data acquired in the biological information acquisition step.
- a parameter calculation step for calculating a parameter related to biological information based on the change, an estimation step for estimating a user's comfort based on the parameter calculated in the parameter calculation step, and an estimation result by the estimation step
- a stimulus control step for controlling generation of a stimulus to be given to the user.
- An environment control program includes a biological information acquisition unit that acquires time-series data of a user's biological information, and the time-series data acquired by the biological information acquisition unit.
- Parameter calculation means for calculating parameters related to biological information based on the change, estimation means for estimating the comfort of the user based on the parameters calculated by the parameter calculation means, and estimation results by the estimation means Based on this, the computer is caused to function as a stimulus control means for controlling the generation of the stimulus given to the user.
- a computer-readable recording medium in which an environment control program according to another aspect of the present invention is recorded is obtained by a biological information acquisition unit that acquires time-series data of a user's biological information, and the biological information acquisition unit. Based on the change of the time series data Parameter calculating means for calculating a parameter relating to biological information; estimation means for estimating a user's comfort based on the parameter calculated by the parameter calculating means; and a stimulus to be given to the user based on an estimation result by the estimating means An environment control program that causes a computer to function as a stimulus control means for controlling generation is recorded.
- parameters related to biological information are calculated based on changes in time-series data of the biological information of the user. Based on the calculated parameters, the user's comfort feeling for the stimulation is estimated, and the generation of the stimulus given to the user is controlled based on the estimation result. That is, when an estimation result that deteriorates the user's comfort is obtained, the user can be stimulated to improve the comfort.
- comfort is estimated based on parameters calculated based on changes in time-series data of the user's biological information, and generation of stimuli given to the user is controlled based on the estimation result. Therefore, the user can surely feel a comfortable feeling and can maintain the comfortable state.
- FIG. 1 is a block diagram showing a configuration of an environment control device according to Embodiment 1 of the present invention.
- FIG. 2 is a flow chart showing the flow of processing of the environment control device in Embodiment 1 of the present invention.
- FIG. 3 (a) is a graph showing the correlation between the maximum Lyapunov exponent and the user's thermal sensation found by the present inventors through a subject experiment, and (b) is the graph derived from Fig. 3 (a). This table summarizes the relationship between fluctuations in the maximum Lyapunov index and thermal sensation.
- FIG. 4 is a block diagram showing a configuration of an environment control device in Embodiment 2 of the present invention.
- FIG. 5 is a flowchart showing the flow of processing of the environment control device in Embodiment 2 of the present invention.
- FIG. 6 (a) shows the maximum value of the pulse wave height found by the inventors in the subject experiment and the user's (B) is a graph showing the correlation between the maximum Lyapunov exponent and the user's thermal sensation, and (c) is a graph showing the correlation with thermal sensation.
- 3 is a table in which the relationship of thermal sensation to the maximum pulse wave height and maximum Lyapunov exponent shown in FIG.
- FIG. 8 is a diagram showing a table in which estimated data and control data are associated with each other.
- FIG. 9 A block diagram showing the configuration of the environmental control device according to the third embodiment of the present invention.
- FIG. 10 is a flow chart showing the flow of processing of the environment control device in Embodiment 3 of the present invention.
- FIG. 11 is a diagram showing a table in which the maximum Lyapunov exponent derived in the same manner as in Embodiment 2 and the thermal sensation with respect to room temperature are summarized in a matrix.
- FIG. 12 is a block diagram showing the configuration of the environment control device in Embodiment 4 of the present invention.
- FIG. 13 is a flowchart showing a process flow of the environment control device in the fourth embodiment of the present invention.
- FIG. 14 (a) is a diagram showing a table in which the relationship between the maximum Lyapunov index and cooling capacity and thermal sensation is shown in a matrix, and (b) is the maximum Lyapunov index, heating capacity and thermal cooling. It is a figure which shows the table which put together the relationship with feeling in the matrix form.
- FIG. 15 is a schematic diagram showing the configuration of the environment control device in Embodiment 5 of the present invention.
- FIG. 16 is a flowchart showing operations of the pulse wave chaos parameter calculation unit, the pulse wave chaos parameter comparison unit, the first user state estimation unit, and the first stimulus control unit in the present embodiment.
- ⁇ 17] is a flowchart showing operations of the pulse waveform parameter calculation unit, the pulse waveform parameter comparison unit, the second user state estimation unit, and the second stimulation control unit in the present embodiment.
- FIG. 18 is a flowchart showing an operation of a stimulus control switching unit in the present embodiment.
- FIG. 19 is a graph showing the relationship between pulse wave waveform parameters and membership values.
- FIG.20 Lyapunov exponent obtained by chaos analysis of pulse wave before, during and after foot bathing It is a figure which shows an example of the change of a subjectivity, and the change of the subjective report regarding a feeling of comfort and a thermal feeling.
- FIG. 21 is a block diagram showing a configuration of an environmental control system in Embodiment 6 of the present invention.
- FIG. 22 is a flowchart showing processing of the environment control system in the sixth embodiment of the present invention.
- FIG. 23 is a flow chart showing processing of a parameter variation determination unit in Embodiment 6 of the present invention.
- FIG. 24 is a flow chart showing processing of a parameter variation determination unit in Embodiment 7 of the present invention.
- FIG. 25 is a block diagram showing a configuration of an environmental control system in an eighth embodiment of the present invention.
- FIG. 26 is a flowchart showing the processing of the environmental control system in the eighth embodiment of the present invention.
- FIG. 27 is a first flowchart showing processing of a parameter variation determination unit in the eighth embodiment of the present invention.
- FIG. 28 is a second flowchart showing processing of the parameter variation determination unit in the eighth embodiment of the present invention. ⁇ 29] It is a first flowchart showing the processing of the parameter variation determination unit when the stimulus content is a steady stimulus.
- ⁇ 30 A second flowchart showing the processing of the parameter variation determination unit when the stimulus content is a steady stimulus.
- FIG. 31 is a flowchart showing processing of the environment control system in the ninth embodiment of the present invention.
- FIG. 32 is a flow chart showing processing of a parameter variation determination unit in Embodiment 9 of the present invention.
- FIG. 34 is a flowchart showing the processing of the environmental control system in the tenth embodiment of the present invention. It is
- FIG. 35 is a flow chart showing processing of a parameter variation determining unit in Embodiment 10 of the present invention.
- FIG. 38 is a flow chart showing processing of the environment control system in Embodiment 11 of the present invention.
- FIG. 39 is a first flow chart showing processing of a parameter variation determining unit in Embodiment 11 of the present invention.
- FIG. 40 is a second flowchart showing the process of the parameter variation determination unit in the eleventh embodiment of the present invention.
- FIG. 41 is a diagram showing a configuration of an environmental control system in Embodiment 12 of the present invention.
- FIG. 42 is a flow chart showing processing of the environment control system in Embodiment 12 of the present invention.
- FIG. 43 is a flow chart showing processing of a parameter variation determination unit in Embodiment 12 of the present invention.
- ⁇ 44 A block diagram showing the configuration of the environment control device according to the thirteenth embodiment of the present invention.
- FIG. 45 is a flowchart showing the flow of environmental control processing by the environmental control device shown in FIG. 44.
- FIG. 46 is a graph showing the correlation between acceleration pulse wave component ratio, acceleration pulse wave amplitude, or RP-dw and the user's thermal sensation found by the present inventors through subject experiments.
- FIG. 48 is a flowchart showing a thermal sensation change estimation process by a thermal sensation change estimation unit in the thirteenth embodiment.
- FIG. 49 is a flowchart showing a thermal sensation change estimation process by a thermal sensation change estimation unit in the first modification of the thirteenth embodiment.
- FIG. 50 is a graph showing the correlation between the median value of the orbital parallel measure and the user's thermal sensation found by the present inventors in the subject experiment.
- FIG. 51 is a flowchart showing a thermal sensation change estimation process by a thermal sensation change estimation unit in a second modification of the thirteenth embodiment.
- FIG. 52 is a block diagram showing a configuration of an environment control apparatus in Embodiment 14 of the present invention.
- FIG. 53 is a flowchart showing a flow of thermal sensation change determination processing by a thermal sensation change determination unit in the fourteenth embodiment.
- FIG. 54 is a flowchart showing a flow of thermal sensation change determination processing by a thermal sensation change determination unit in the fifteenth embodiment.
- FIG. 55 shows the estimation results by the first thermal sensation change estimation unit and the second thermal sensation change estimation unit, and the thermal sensation change and coefficient k determined by the thermal sensation change determination unit in Embodiment 15. It is a figure which shows an example of the table which linked
- FIG. 56 is a flowchart showing a flow of control content determination processing by a device control determination unit in the fifteenth embodiment.
- FIG. 57 is a flowchart showing a flow of thermal sensation change estimation processing by a thermal sensation change estimation unit in the sixteenth embodiment.
- FIG. 58 shows the estimation results by the first thermal sensation change estimation unit and the second thermal sensation change estimation unit, the thermal sensation change and the coefficient k determined by the thermal sensation change determination unit in Embodiment 17. It is a figure which shows an example of the table which linked
- FIG. 59 is a flowchart showing a process flow of the device control determination unit in the seventeenth embodiment.
- FIG. 60 is a diagram showing a waveform of an acceleration pulse wave described in Patent Document 1.
- FIG. 61 is a block diagram showing a configuration of a hot air heater described in Patent Document 2. BEST MODE FOR CARRYING OUT THE INVENTION
- Embodiment 1 of the present invention An environment control apparatus according to Embodiment 1 of the present invention will be described.
- the present inventors show that there is a high correlation between the fluctuation of the maximum Lyapunov exponent in which the fluctuation degree of the pulse wave in the user is indexed and the fluctuation of the thermal sensation in relation to thermal stimulation (change in thermal environment). I found. Therefore, the environmental control apparatus according to Embodiment 1 estimates the user's thermal sensation using this correlation.
- FIG. 1 is a block diagram showing a configuration of the environment control device according to Embodiment 1 of the present invention.
- the environment control apparatus shown in FIG. 1 has, for example, a known computer power, and includes a biological information measurement unit (biological information acquisition unit) 101, a chaos analysis unit (parameter calculation unit) 102, a state estimation unit (estimation unit) 103, A control content determination unit (stimulation control means) 104 and a device control unit 105 are provided.
- the biological information measuring unit 101 to the device control unit 105 are realized by the CPU of the computer in which the environment control program according to the present invention is installed executing the program.
- the biological information measurement unit 101 samples a user's fingertip pulse wave detected by a known transducer or the like at a predetermined sampling period, and acquires pulse wave data in time series.
- the chaos analysis unit 102 performs chaos analysis on the pulse wave data for a predetermined time as a parameter for evaluating the pulse wave, calculates the maximum Lyapunov exponent that is a value obtained by indexing the fluctuation degree of the pulse wave, and calculates the target pulse wave. Sequentially shift the predetermined time of the data, average a certain number of the calculated maximum Lyapunov exponents together (so-called moving average), and store this as the maximum Lyapunov exponent for a predetermined length of time at that time .
- the state estimation unit 103 calculates the variation of the maximum Lyapunov exponent extracted by the chaos analysis unit 102, estimates the user's thermal sensation, and uses the estimation data that is the estimation result as the control content determination unit Output to 104.
- the state estimation unit 103 calculates the difference between the current value of the maximum Lyapunov exponent and the immediately preceding value, which is the immediately preceding value, when the device control unit 105 starts control and the force is also sequentially calculated in time series. By dividing the time difference (sampling period) and calculating the differential value of the maximum Lyapunov exponent, it is possible to determine whether the differential value applies to the deviation of a plurality of predetermined behavior examples described later. Estimate the feeling.
- the control content determination unit 104 performs the user's heating / cooling at the time of output by the state estimation unit 103.
- Device control data is generated based on the estimated data indicating the feeling and output to the device control unit 105.
- the device control unit 105 controls the device according to the control data output from the control content determination unit 104.
- FIG. 2 is a flowchart showing the flow of processing of the environment control device in Embodiment 1 of the present invention.
- the biological information measuring unit 101 measures a user's pulse wave and acquires time series data of the pulse wave (step Sl).
- the chaos analysis unit 102 calculates and accumulates the maximum Lyapunov exponent from the time series data of the pulse wave measured by the biological information measurement unit 101 at regular intervals (step S2).
- the state estimation unit 103 divides the difference between the current value of the maximum Lyapunov exponent ⁇ extracted by the chaos analysis unit 102 and the immediately preceding value, which is the immediately preceding value, by the time difference (sampling period), and the maximum Lyapunov exponent.
- the differential value ⁇ ⁇ is calculated.
- the state estimation unit 103 estimates the thermal sensation of the user based on the calculated differential value ⁇ of the maximum Lyapunov exponent, and outputs estimated data that is an estimation result to the control content determination unit 104 (step S3).
- control content determination section 104 receives the estimation data output from state estimation section 103.
- the control content determination unit 104 determines the control content of the device based on the estimation data output from the state estimation unit 103, and outputs the control data that is the control content to the device control unit 105 (step S4).
- the device control unit 105 receives the control data output from the control content determination unit 104.
- the device control unit 105 controls the device according to the control data output from the control content determination unit 104 (step S5).
- Fig. 3 (a) is a graph showing the correlation between the maximum Lyapunov exponent and the user's thermal sensation, as found by the present inventors through subject experiments. As shown in Fig. 3 (a), the maximum Lyapunov exponent and thermal sensation are convex downwards where the maximum Lyapunov exponent is extreme when the thermal sensation shows 0 (neutral state that is neither hot nor cold). It can be seen that there is a correlation represented by this graph.
- Fig. 3 (b) shows the variation of the maximum Lyapunov exponent and the variation of thermal sensation found from Fig. 3 (a). It is a table that summarizes the relationship. The state estimation unit 103 holds this table in advance. 'Increase power shown in this table! ] 'Indicates that the maximum Lyapunov exponent increased in the graph shown in Fig. 3 (a). In addition, in the graph shown in Fig. 3 (a), 'Improved thermal sensation (cold ⁇ Oor hot ⁇ 0)' indicates that the thermal sensation changes to a hot state or a neutral state that is neither hot nor cold. It shows that. 'Decrease' indicates that the maximum Lyapunov exponent has decreased in the graph shown in Fig.
- the state estimation unit 103 determines that the maximum Lyapunov exponent has increased if the differential value ⁇ of the maximum Lyapunov exponent is 0 or more. However, the user's thermal sensation is neither hot nor cold, but has changed from a neutral state (0 side) to cold, or from a neutral state (0 side) that is neither hot nor cold to a hot state. It is presumed that the thermal sensation was bad. On the other hand, when the differential value ⁇ of the maximum Lyapunov exponent ⁇ is less than 0, the state estimation unit 103 determines that the maximum Lyapunov exponent has decreased, and the user's thermal sensation is cold and the state power is neither hot nor cold. It is estimated that the state direction (0 direction), certain or hot, state force changed to the neutral state direction (0 direction), neither hot nor cold, that is, the thermal sensation was improved.
- the state estimation unit 103 estimates that the thermal sensation of the user has improved, it outputs estimation data of “improved thermal sensation” and estimates that the thermal sensation of the user has deteriorated. If this is the case, the estimated data for 'Deterioration of thermal sensation' is output.
- control content determination unit 104 converts the estimation data into device control data. For example, if the input estimated data is “warmth and coolness”, the control data is determined so as to improve the warmth and coolness. On the other hand, if the input estimation data is “improvement of thermal sensation”, the control data is determined as “none” and no control data is output.
- the thermal sensation here changes to the direction of the neutral state (0 direction) that is neither cold nor hot nor cold. It can be seen that the thermal sensation moves in the 0 direction even for a one-point force located within the range of 3 to 0 on the horizontal axis in means. Also, if the thermal sensation changes from hot to cold in a neutral state that is neither hot nor cold (0 direction), a one-point force located within the range of +3 to 0 on the horizontal axis in Fig. 3 (a) is also 0. It means that the feeling of warmth moves in the direction.
- the thermal sensation changes from the neutral state (0 side), which is neither hot nor cold, to the cold state
- a change in temperature from the neutral state (0 side) that is neither hot nor cold to the hot state means that one point located within the range of 0 to +3 on the horizontal axis in Fig. 3 (a). It means that the thermal feeling moves from to +3 direction.
- control content determination unit 104 for example, a predetermined value such as a room temperature set temperature change of 2 degrees may be used, or state estimation unit 103 In, the degree of control change may be determined based on the magnitude of the differential value ⁇ .
- the user's biological information is based on the maximum Lyapunov exponent obtained by performing chaos analysis on the time-series data of the pulse wave.
- Thermal sensation is estimated and the result of the estimation
- the equipment especially air-conditioning equipment
- Cold stimulation can be given to the user.
- Embodiment 2 of the present invention In contrast to the known finding that there is a high correlation between the absolute amplitude of the pulse wave and the user's thermal sensation, the absolute amplitude of the pulse wave is completely different from person to person, so it is difficult to estimate the user's thermal sensation.
- the use of the absolute value of the wave amplitude has had the problem that the individual accuracy has a large effect and the estimation accuracy has been reduced.
- the present inventors have a high correlation between the fluctuation of the pulse wave maximum value (pulse wave height maximum value) corresponding to the fluctuation of the amplitude of the pulse wave and the fluctuation of the user's thermal sensation. Found that there is.
- the present inventors have found that there is a high correlation between the fluctuation of the maximum Lyapunov exponent in which the fluctuation degree of the user's pulse wave is indexed and the fluctuation of the user's thermal sensation. Then, the present inventors estimated the user's thermal sensation on the basis of the fluctuation of the maximum pulse wave height and the fluctuation of the maximum Lyapunov exponent for thermal / thermal stimulation (change of thermal / thermal environment).
- the pulse wave height maximum value refers to a peak value in the pulse wave waveform of several beats acquired within a predetermined time in the pulse wave data. Alternatively, it may be the peak value of the waveform within one pulse of each pulse wave data! It may be the average value of the peak value of each pulse wave waveform, or the amplitude of the pulse wave It is good.
- FIG. 4 is a block diagram showing the configuration of the environment control device according to Embodiment 2 of the present invention.
- the same elements as those in the first embodiment are not described, and only the differences are described.
- the environmental control device shown in FIG. 4 includes a peak height extraction unit 106 in addition to the configuration of the first embodiment.
- the difference from the first embodiment is that the state estimation unit 103 has a maximum peak height.
- the point is that the user's thermal sensation is estimated using the maximum wave height value extracted by the value extraction unit 106 and the maximum Lyapunov exponent analyzed by the chaos analysis unit 102.
- the pulse height maximum value extraction unit 106 uses, as a parameter for evaluating a pulse wave, a pulse wave peak maximum value that is a peak value of several pulse wave waveforms acquired within a predetermined time in the pulse wave data. Extracted and stored in a memory (not shown).
- the state estimation unit 103 calculates the fluctuation of the pulse wave peak maximum value extracted by the peak height extraction unit 106 and the fluctuation of the maximum Lyapunov exponent calculated by the chaos analysis unit 102, and the user's The thermal sensation is estimated, and the estimation data as the estimation result is output to the control content determination unit 104 in the same manner as in the first embodiment.
- the state estimation unit 103 starts the control and the current value of the pulse wave height maximum value and the maximum Lyapunov exponent, which are sequentially extracted in time series, and immediately before that. The difference between the previous value and the previous value is divided by the time difference (sampling period) to calculate the differential value of the maximum pulse wave height and the differential value of the maximum Lyapunov exponent.
- the state estimation unit 103 estimates the user's thermal sensation by determining which of the plurality of predetermined behavior examples described later applies to these differential values.
- FIG. 5 is a flowchart showing a process flow of the environment control apparatus in the second embodiment of the present invention.
- biological information measuring section 101 acquires pulse wave time-series data in the same manner as in the first embodiment (step S6).
- the pulse height maximum value extraction unit 106 determines the maximum pulse wave height from the time series data of the pulse wave measured by the biological information measurement unit 101 at regular intervals.
- the value hmax is extracted and stored (step S7).
- the chaos analysis unit 102 calculates and accumulates the maximum Lyapunov exponent for each time-series data force of the pulse wave measured by the biological information measurement unit 101 (step S7). ).
- the state estimation unit 103 divides the difference between the current value of the pulse wave height maximum value hmax extracted by the pulse height maximum value extraction unit 106 and the immediately preceding value, which is the immediately preceding value, by the time difference (sampling period).
- the differential value hmax of the pulse wave height maximum value hmax is calculated, and the difference between the current value of the maximum Lyapunov index calculated by the chaos analysis unit 102 and the immediately preceding value is the time difference (A differential value ⁇ of the maximum Lyapunov exponent ⁇ is calculated by dividing by the sampling period (step S8).
- the state estimation unit 103 estimates the thermal sensation of the user based on the calculated differential value ⁇ hmax of the pulse wave height maximum value and the differential value ⁇ of the maximum Lyapunov exponent, The estimated data is output to the control content determination unit 104 (step S8).
- the control content determination unit 104 receives the estimation data output from the state estimation unit 103.
- the control content determination unit 104 determines the device control content based on the estimated data output from the state estimation unit 103, and outputs control data indicating the control content to the device control unit 105 (step S9).
- the device control unit 105 receives the control data output from the control content determination unit 104.
- the device control unit 105 controls the device according to the control data output from the control content determination unit 104 (step S10).
- Fig. 6 (a) is a graph showing the correlation between the maximum value of the pulse wave height and the user's thermal sensation found by the present inventors in the subject experiment
- Fig. 6 (b) is the maximum Lyapunov. It is a graph showing the correlation between the index and the thermal sensation of the user.
- the maximum Lyapunov exponent and thermal sensation are graphs with a downward convexity where the maximum Lyapunov exponent becomes an extreme value near the thermal sensation of 0 (neutral state that is neither hot nor cold). It has the correlation represented by these.
- the maximum pulse wave height and thermal sensation indicate that the thermal sensation is cold (1) and the side force is also hot (+3).
- the maximum pulse wave height has a correlation that increases monotonously.
- FIG. 6 (c) is a table in which the relationship between thermal sensation with respect to the maximum pulse wave height and the maximum Lyapunov exponent shown in FIGS. 6 (a) and 6 (b) is summarized in a matrix. . This table is held in advance by the state estimation unit 103.
- the state estimation unit 103 performs control by the devices constituting the thermal / thermal environment using the table shown in FIG. 6 (c), the maximum pulse wave height increases and the maximum When the NOF index increases, it is estimated that the thermal sensation of the user is neither hot nor cold, but changes in the neutral state (0 side) force heat V and the direction of the state.
- the state estimation unit 103 indicates that the user's thermal sensation is a cold state force or a neutral state that is neither hot nor cold ( Estimated to have changed in the 0 direction). In addition, when the maximum pulse wave height value decreases and the maximum Lyapunov exponent increases, the state estimation unit 103 moves the user from a neutral state (0 side) that is neither hot nor cold to a cold state. Estimate that it has changed. In addition, when the maximum pulse height value decreases and the maximum Lyapunov exponent decreases, the state estimation unit 103 changes the user's thermal sensation in a hot state force in a neutral state that is neither hot nor cold (0 direction). It is estimated that
- FIG. 7 is a flowchart showing the flow of processing in state estimation section 103 in Embodiment 2 of the present invention.
- the state estimating unit 103 divides the difference between the current value of the pulse wave height maximum value hmax extracted by the wave height maximum value extracting unit 106 and the immediately preceding value by the time difference (sampling period). Then, a differential value ⁇ hmax of the pulse wave height maximum value hmax is calculated (step S11).
- the state estimation unit 103 calculates the difference between the current value of the maximum Lyapunov exponent ⁇ extracted by the chaos analysis unit 102 and the immediately preceding value as the time difference (sampling).
- the differential value ⁇ of the maximum Lyapunov exponent ⁇ is calculated by dividing by (period) (step S11).
- step S12 the state estimation unit 103 first determines the differential value ⁇ hmax of the pulse wave height maximum value. Specifically, the state estimation unit 103 determines whether or not the differential value ⁇ hmax of the pulse wave peak maximum value is 0 or more. When the differential value ⁇ hmax of the pulse wave height maximum value is 0 or more (YES in step S12), the state estimation unit 103 Is determined to have increased, and the process proceeds to step S13.
- step S13 the state estimation unit 103 determines whether the differential value ⁇ of the maximum Lyapunov exponent is 0 or more.
- the state estimating unit 103 determines that the maximum Lyapunov exponent has increased when the differential value ⁇ of the maximum Lyapunov exponent is 0 or more (YES in step SI3).
- the state estimation unit 103 refers to the table in FIG. 6 (c) that is held in advance, and the temperature changes from the neutral state (0 side), which is hot and cold, to the hot state.
- Te! /, Ru and estimates, '0 ⁇ hot, and outputs to the control content decision unit 104 estimates the data representing the estimated result of (step S 14).
- the state estimating unit 103 determines that the maximum Lyapunov exponent has decreased.
- the state estimation unit 103 refers to the table in FIG. 6 (c) and estimates that the thermal sensation is changing to the cold state force and the neutral state direction (0 direction) that is neither hot nor cold.
- Estimation data representing the estimation result of cold ⁇ 0 ' is output to the control content determination unit 104 (step S15).
- step S12 when the differential value ⁇ hmax of the pulse wave height maximum value is less than 0 (NO in step S12), the state estimation unit 103 determines that the pulse wave height maximum value has decreased and performs processing. Proceed to step S16.
- step S16 the state estimation unit 103 determines the differential value of the maximum Lyapunov exponent.
- the state estimation unit 103 determines that the maximum Lyapunov exponent has increased when the maximum value L ⁇ of the maximum Lyapunov exponent is 0 or more (YES in step S16). In this case, the state estimation unit 103 refers to the table shown in FIG. 6 (b) and changes from the neutral state (0 side) to the cold state and the state of coldness. And the estimation data representing the estimation result “0 ⁇ cold” is output to the control content determination unit 104 (step S17).
- the state estimation unit 103 determines that the maximum Lyapunov exponent has decreased. In this case, the state estimation unit 103 estimates that the thermal sensation changes to a neutral state (0 direction) that is neither hot nor cold, and the estimation result is 'hot, ⁇ 0' t. Is output to the control content determination unit 104 (step S18).
- the control content determination unit 104 stores the estimation data in advance and refers to the table indicating the relationship between the estimation data and the control data. Convert to control data.
- FIG. 8 is a diagram showing a table in which estimated data and control data are associated with each other.
- Control content determination section 104 converts the content of the estimated data into control data based on the table shown in FIG. For example, when the estimated data indicates “0 ⁇ cold”, the control content determination unit 104 determines the control data with the content “warm control”. When the estimated data indicates “0 ⁇ hot”, the control content determination unit 104 determines the control data as “cold control”. Furthermore, when the estimated data indicates “cold ⁇ 0” or “hot ⁇ 0”, the control content determination unit 104 determines the control data as “none”. In this case, the control content determination unit 104 outputs control data that does not output control data or maintains the current device state.
- 'warm control' means, for example, control for increasing the room temperature set temperature in the air conditioner, control for increasing the heating capacity during the heating operation, and control for decreasing the cooling capacity during the cooling operation, etc.
- 'Cooling control' refers to, for example, control for lowering the room temperature set temperature in air conditioning equipment, control for reducing the heating capacity during heating operation, and control for increasing the cooling capacity during cooling operation, etc. .
- the thermal sensation here changes to a neutral state direction (0 direction) that is neither a cold state force nor hot nor cold. It means that the thermal sensation moves from point 1 to 0 in the range 3 to 0 on the horizontal axis in a) and Fig. 6 (b).
- the thermal sensation changes to a neutral state that is neither hot nor cold (0 direction)
- it is within the range of +3 to 0 on the horizontal axis in Fig. 6 (a) and Fig. 6 (b).
- the one-point force that is located also means that the thermal sensation moves in the 0 direction.
- the change from the neutral state (0 side) where the thermal sensation is neither hot nor cold to the cold state is within the range of 0 to -3 on the horizontal axis in Fig. 6 (a) and Fig. 6 (b). It means that the thermal sensation moves from 1 point to 3 directions.
- the change in temperature from the neutral state (0 side) that is neither hot nor cold to the hot state is within the range of 0 to +3 on the horizontal axis in Fig. 6 (a) and Fig. 6 (b). This means that the thermal sensation moves in the +3 direction from the point where it is located.
- a predetermined value such as a room temperature set temperature change of 2 degrees may be used, or the state estimation unit 103 The degree of the control change may be determined based on the magnitude of the differential value A hmax of the pulse wave height maximum value calculated in step 1 and the differential value ⁇ of the maximum Lyapunov exponent.
- the maximum Lyapunov exponent obtained by performing chaos analysis on the time-series data using only the pulse wave as the biological information of the user The user's thermal sensation to thermal stimulation is estimated based on the pulse wave peak maximum value, which is the peak value of the pulse waveform in one pulse in the pulse wave data.
- the device that generates the stimulus is controlled. Therefore, it is possible to accurately estimate the user's thermal sensation by eliminating the influence of individual differences in biometric information. As a result, the thermal feeling of the user can be brought into an appropriate state that is neither hot nor cold.
- the pulse wave amplitude may be used instead of the pulse wave height maximum value.
- FIG. 9 is a block diagram showing the configuration of the environment control device according to the third embodiment of the present invention.
- the same elements as those in the second embodiment will not be described and only different parts will be described.
- the environment control device shown in FIG. 9 includes a room temperature measurement unit 107 instead of the maximum wave height extraction unit 106 in the second embodiment.
- the difference from the second embodiment is that the state estimation unit 103 Instead of using the maximum pulse wave height, room temperature data measured by the room temperature measurement unit 107 is used, and the user's thermal sensation is estimated using the room temperature data and the maximum Lyapunov exponent.
- the room temperature measurement unit 107 is configured with a temperature sensor isotropic force, and measures and accumulates the indoor temperature at regular intervals.
- the state estimation unit 103 calculates the variation of the room temperature data measured by the room temperature measurement unit 107 and the variation of the maximum Lyapunov exponent calculated by the chaos analysis unit 102, and estimates the user's thermal sensation from the calculation result. Is output to the control content determination unit 104 in the same manner as in the second embodiment.
- the state estimation unit 103 outputs the difference between the room temperature data and the maximum Lyapunov exponent that are sequentially extracted in time series after the device control unit 105 starts control. Divide by the difference (sampling period) to calculate the differential value of the room temperature data and the differential value of the maximum Lyapunov exponent.
- the state estimation unit 103 estimates the thermal sensation of the user by determining whether this differential value applies to a deviation among a plurality of predetermined behavior examples described later.
- FIG. 10 is a flowchart showing a process flow of the environment control device according to the third embodiment of the present invention.
- biological information measuring section 101 measures a pulse wave in the same manner as in Embodiment 2 and acquires time-series data of the pulse wave.
- the room temperature measuring unit 107 measures the temperature of the room where the user is located and acquires room temperature data (step S20).
- the chaos analysis unit 102 calculates and accumulates the maximum Lyapunov exponent for each time-series data force of the pulse wave measured by the biological information measurement unit 101 (step S21).
- state estimating section 103 estimates the user's thermal sensation based on the variation in room temperature data and the maximum Lyapunov exponent, and outputs the estimated data to control content determining section 104 (step S22). ). Specifically, the state estimation unit 103 divides the difference between the current value of the room temperature data acquired by the room temperature measurement unit 107 and the immediately preceding value, which is the immediately preceding value, by the time difference (sampling period), and the room temperature data. The differential value At is calculated. Then, the state estimation unit 103 determines that the room temperature has increased when the minute value At is positive, and determines that the room temperature has decreased when the differential value At is negative.
- the state estimation unit 103 divides the difference between the current value of the maximum Lyapunov exponent calculated by the chaos analysis unit 102 and the immediately preceding value by the time difference (sampling period) to obtain the maximum Calculate the differential value ⁇ of the Lyapunov exponent. Then, the state estimation unit 103 determines that the maximum Lyapunov exponent has increased when the differential value ⁇ is positive, and determines that the maximum Lyapunov exponent has decreased when the differential value ⁇ is negative.
- state estimating section 103 estimates the thermal sensation of the user with reference to the table shown in FIG.
- FIG. 11 is a diagram showing a table in which thermal sensations with respect to the maximum Lyapunov exponent and room temperature derived in the same manner as in the second embodiment are arranged in a matrix. This table is held in advance by the state estimation unit 103.
- the state estimation unit 103 is controlled by the devices constituting the thermal environment. After that, referring to the table shown in Fig. 11, when the room temperature rises and the maximum Lyapunov exponent increases, the user's thermal sensation is either hot or cold. Estimated that the direction has changed, output estimated data indicating '0 ⁇ hot'. In addition, when the room temperature data rises and the maximum Lyapunov exponent decreases, the state estimation unit 103 estimates that the user's thermal sensation has changed to a cold state force that is neither hot nor cold but in a neutral state (0 direction). And output estimation data indicating 'cold ⁇ 0'.
- the state estimation unit 103 does not feel hot or cold from the neutral state (0 side) to the cold state. Estimate that the direction has changed, and output estimated data indicating '0 ⁇ cold'.
- the state estimation unit 103 estimates that the user's thermal sensation has changed to a hot state force that is neither hot nor cold in a neutral state direction (0 direction). Then, the estimation data indicating 'hot ⁇ 0' is output. Thereafter, each estimated data is output to the control content determination unit 104.
- the control content determination unit 104 refers to the table shown in FIG. (Step S23).
- the device control unit 105 receives the control data output from the control content determination unit 104.
- the device control unit 105 controls the device according to the control data output from the control content determination unit 104 (step S24).
- the user's thermal sensation is based on the maximum Lyapunov index and the current room temperature that is normally measured by the air conditioner. Therefore, it is possible to accurately estimate the thermal sensation of the user by eliminating the influence of individual differences in biological information. As a result, the thermal sensation of the user can be surely led to an appropriate state that is neither hot nor cold.
- FIG. 12 is a block diagram showing the configuration of the environment control device according to Embodiment 4 of the present invention. The description of the same elements as those of the first embodiment will be omitted, and only the differences will be described.
- the environment control device shown in FIG. 12 is almost the same as the configuration in the first embodiment, but is different from the first embodiment.
- the point is that the control content determination unit 104 determines control data, and outputs the determined control data to the state estimation unit 103.
- the state estimation unit 103 outputs the maximum control data and the control data output from the control content determination unit 104. It is in the point which estimates a user's thermal sensation using a Lyapunov exponent.
- the state estimation unit 103 calculates the variation of the maximum Lyapunov exponent calculated by the chaos analysis unit 102, and based on the calculation result and the control data output from the control content determination unit 104, the user's temperature
- the estimation data is estimated, and the estimation data as the estimation result is output to the control content determination unit 104 in the same manner as in the first embodiment.
- the control data includes “cooling” data and data specifying the output intensity of the cooling.
- the control data includes “heating” data and data specifying the output intensity of heating.
- the state estimation unit 103 divides the difference of the maximum Lyapunov exponent, which is sequentially extracted in time series by the device control unit 105, by the time difference (sampling period). Then, the differential value ⁇ of the maximum Lyapunov exponent is calculated. The state estimation unit 103 determines whether the behavior of the differential value and the content of the control data output from the control content determination unit 104 correspond to a plurality of predetermined examples to be described later. Estimate cold feeling.
- FIG. 13 is a flowchart showing a process flow of the environment control device according to the fourth embodiment of the present invention.
- biological information measuring section 101 measures a pulse wave in the same manner as in the first embodiment, and acquires time-series data of the pulse wave (step S30).
- the chaos analysis unit 102 calculates and accumulates the maximum Lyapunov exponent from the time series data of the pulse wave measured by the biological information measurement unit 101 at regular intervals (step S31).
- the state estimation unit 103 estimates the thermal sensation of the user based on the fluctuation of the maximum Lyapunov exponent and the control data output from the control content determination unit 104, and uses the estimated data as the control content determination unit. Output to 104 (step S32).
- the state estimation unit 103 calculates the difference between the current value of the maximum Lyapunov exponent calculated by the chaos analysis unit 102 and the immediately preceding value as the time difference (sampling). Divided by (period), the differential value ⁇ of the maximum Lyapunov exponent is calculated. Then, the state estimation unit 103 determines that the maximum Lyapunov exponent has increased when the differential value ⁇ is positive, and determines that the maximum Lyapunov exponent has decreased when the differential value ⁇ is negative.
- the state estimation unit 103 is a device that functions as cooling or heating from the current value of the output intensity included in the control data output from the control content determination unit 104 and the immediately preceding value that is the immediately preceding value. It is judged whether the cooling capacity or the heating capacity indicating the output intensity of the power source has increased or decreased.
- FIG. 14 is a diagram showing a table in which the relationship between the maximum Lyapunov exponent and thermal sensation derived in the same manner as in Embodiment 1 and the relationship between control data and thermal sensation are arranged in a matrix.
- Fig. 14 (a) is a table showing the relationship between the maximum Lyapunov exponent and the cooling capacity and thermal sensation in a matrix
- Fig. 14 (b) shows the maximum Lyapunov exponent, heating capability and thermal sensation. It is a figure which shows the table which put together the relationship with these in the matrix form.
- the state estimation unit 103 holds this table in advance.
- the state estimation unit 103 refers to the table shown in FIG. 14 (a). However, the user's thermal sensation is either hot or cold. ⁇ It is assumed that the state has changed from the neutral state (0 side) to the cold state, and the estimated data indicating “0 ⁇ cold” is output.
- the state estimation unit 103 refers to the table shown in FIG. The user's thermal sensation is assumed to have changed from a neutral state (0 side) that is neither hot nor cold to a hot state, and estimated data indicating '0 ⁇ hot' is output.
- the state estimation unit 103 refers to the table shown in FIG. It is assumed that the user's thermal sensation is a hot state force. It is estimated that the user has changed to a neutral state that is neither hot nor cold (0 direction), and estimated data indicating 'hot ⁇ 0' is output.
- the state estimation unit 103 refers to the table shown in FIG. It is assumed that the user's thermal sensation is a cold state force. It is presumed that the state has changed to a neutral state that is neither hot nor cold (0 direction), and estimated data indicating 'cold ⁇ 0' is output.
- the state estimation unit 103 refers to the table shown in FIG. The user's thermal sensation is assumed to have changed from a neutral state (0 side) that is neither hot nor cold to a hot state, and estimated data indicating '0 ⁇ hot' is output.
- the state estimation unit 103 refers to the table shown in FIG.
- the user's thermal sensation is assumed to have changed from a neutral state (0 side) that is neither hot nor cold to a cold state, and estimated data indicating '0 ⁇ cold' is output.
- the state estimation unit 103 refers to the table shown in FIG. It is assumed that the user's thermal sensation is a cold state force. It is presumed that the state has changed to a neutral state that is neither hot nor cold (0 direction), and estimated data indicating 'cold ⁇ 0' is output.
- the state estimation unit 103 refers to the table shown in FIG. It is assumed that the user's thermal sensation is a hot state force. It is estimated that the user has changed to a neutral state that is neither hot nor cold (0 direction), and estimated data indicating 'hot ⁇ 0' is output.
- control content determination unit 104 refers to the table shown in FIG. Convert to control data (Step S33).
- the device control unit 105 receives the control data output from the control content determination unit 104.
- the device control unit 105 controls the device according to the control data output from the control content determination unit 104 (step S34).
- the warm control when the control such as the cooling by the devices constituting the warm and cool environment is executed refers to the control for reducing the cooling capacity.
- Cooling control refers to control that increases the cooling capacity.
- the warm control when the control such as the same heating is executed refers to the control for increasing the heating capacity.
- Cooling control refers to control that reduces the heating capacity.
- FIG. 15 is a schematic diagram showing the configuration of the environment control device according to the fifth embodiment of the present invention.
- This environment control device is configured by a known computer power, and includes a pulse wave detection unit (biological information acquisition unit) 201, a pulse wave chaos parameter calculation unit (first parameter calculation unit) 202, a pulse wave chaos parameter comparison unit (first 1) 203, first user state estimation unit (first estimation unit) 204, first stimulus control unit (first stimulus control unit) 205, stimulus generation unit 206, pulse waveform parameter calculation unit ( (Second parameter calculation means) 207, pulse waveform parameter comparison section (second estimation means) 208, second user state estimation section (second estimation means) 209, second stimulus control section (second stimulus control) Means) 210 and a stimulus control switching unit (stimulation control switching means) 211.
- a pulse wave detection unit biological information acquisition unit
- first parameter calculation unit first parameter calculation unit
- pulse wave chaos parameter comparison unit first 1
- first user state estimation unit first estimation unit
- first stimulus control unit first stimulus control unit
- pulse wave detection unit 201 to stimulation control switching unit 211 are realized by the CPU of the computer in which the environment control program according to the present invention is installed executing the program.
- the pulse wave detection unit 201 samples a user's finger plethysmogram detected by a known transducer etc. at a predetermined sampling period, and generates pulse wave data (an example of biological information) in a time-series manner. To get to.
- the pulse wave chaos parameter calculation unit 202 calculates the maximum Lyapunov exponent of the time series data of the pulse wave detected and accumulated by the pulse wave detection unit 201, and calculates the calculated maximum Lyapunov exponent as the pulse wave chaos parameter.
- the pulse wave chaos parameter comparison unit 203 compares the value of the calculated pulse wave chaos parameter with the reference value K1.
- the first user state estimation unit 204 calculates a reference value K1 from the current value N1 of the pulse wave chaos parameter calculated by the pulse wave chaos parameter calculation unit 202 based on the comparison result by the pulse wave chaos parameter comparison unit 203. By subtracting the current value N1 from the reference value K1 or by subtracting the current value N1, and comparing the result with the predetermined threshold (third specified value) A1, For example, the state of the user such as a feeling of relaxation, a feeling of comfort or a feeling of warmth or the like is estimated.
- the value of the chaos parameter is adopted.
- the pulse wave chaos parameter calculation unit 202 calculates a change in the value of the pulse wave chaos parameter before changing the intensity or type of the stimulus in a predetermined period before the stimulus generation unit 206 gives a stimulus to the user.
- a more learned value for example, an average value
- the first stimulus control unit 205 stimulates the stimulus with such intensity that the user can obtain a relaxed feeling, a comfortable feeling, a thermal feeling, or the like.
- the stimulation value (first stimulation value) II to be generated by the generation unit 206 is calculated, and the calculated stimulation value II is output to the stimulation control switching unit 211.
- Pulse wave waveform parameter calculation unit 207 calculates a pulse wave waveform parameter for evaluating a pulse wave acceleration waveform, which is a second-order derivative of the pulse wave, from the pulse wave time-series data.
- This pulse waveform parameter is an example of changes in time-series data.
- the pulse wave acceleration is composed of five element waves El, E2, E3, E4, and E5. Since the vertex A of the element wave E1 coincides with the beginning of the diastolic wave of the fingertip plethysmogram, the time required to reach the vertex A force vertex E coincides with the contraction time axis length of the heart.
- the element wave E 1 is a positive wave that is convex upward with respect to the baseline, the element wave E2 is a negative wave that is convex downward with respect to the baseline, and the next element waves E3, E4, and E5 are respectively
- This is an element wave that changes depending on the physiological state, such as a positive wave or negative wave, and has a strong correlation with the age of the user.
- pulse wave waveform parameter calculation section 207 employs cZa having amplitude a as the denominator and amplitude c as the numerator as the pulse waveform parameter.
- cZa b / a or dZa may be adopted as the pulse waveform parameter.
- Pulse waveform parameter comparison section 208 compares the calculated pulse waveform parameter value with reference value K 2.
- the second user state estimation unit 209 obtains a predetermined reference value K2 from the current value N2 of the pulse waveform parameter calculated by the pulse waveform parameter calculation unit 207 based on the comparison result by the pulse waveform parameter comparison unit 208. Decrease calculation or current value from reference value K2 An operation for reducing the value N2 is executed, the operation result is compared with a predetermined threshold value B1, and the user's cognitive state with respect to the stimulus given to the user by the stimulus generation unit 206 is estimated based on the comparison result V. That is, the second user state estimating unit 209 estimates whether the user feels that the stimulus is too strong or too weak for the stimulus given to the user by the stimulus generator 206. .
- the parameter value is adopted.
- a value for example, an average value learned from the transition of the pulse wave norm before changing the intensity or type of the pulse wave stimulus for a certain period before the stimulus generator 206 gives a stimulus to the user is adopted. Is done.
- the second stimulus control unit 210 causes the stimulus generation unit 206 to generate a stimulus having a strength that the user feels appropriate for the stimulus.
- the stimulation value (second stimulation value) 12 is calculated and output to the stimulation control switching unit 211.
- the stimulus control switching unit 211 determines the intensity of the stimulus actually output based on the stimulus value II output from the first stimulus control unit 205 and the stimulus value 12 output from the second stimulus control unit 210.
- the stimulus output value Ol for designating is calculated and output to the stimulus generator 206.
- FIG. 16 is a flowchart showing operations of pulse wave chaos parameter calculation unit 202, pulse wave chaos parameter comparison unit 203, first user state estimation unit 204, and first stimulus control unit 205 in the present embodiment. .
- the pulse wave chaos parameter calculation unit 202 receives the pulse wave time-series data detected and accumulated by the pulse wave detection unit 201 (step S40). Next, the pulse wave chaos parameter calculation unit 202 also calculates the maximum Lyapunov exponent (Ly) for the received pulse wave time series data force, and sets the calculated maximum Lyapunov exponent as the current value N1 of the pulse wave chaos parameter (step S41). .
- pulse wave chaos parameter comparison section 203 compares the difference between reference value K1 of pulse wave chaos parameter and current value N1 with threshold value A1 (step S42). Specifically, the pulse wave chaos parameter comparison unit 203 calculates the difference between the current value N 1 of the pulse wave chaos parameter and the reference value K1, and determines whether the calculated difference is greater than or equal to the threshold A1. . If the calculated difference is equal to or greater than the threshold value A1 (YES in step S42), the first user state estimation unit 204 may feel relaxed or comfortable. Alternatively, it is estimated that the thermal sensation is improved (step S43).
- the first user state estimation unit 204 determines whether the user feels relaxed or comfortable. It is presumed that the thermal sensation is improved and that it is obsolete (step S44).
- step S45 the first stimulus control unit 205 calculates a stimulus value II such that the current stimulus intensity is maintained, and outputs it to the stimulus control switching unit 211.
- step S46 the first stimulus control unit 205 outputs a stimulus value II that is strengthened from the current stimulus intensity to the stimulus control switching unit 211.
- FIG. 17 is a flowchart showing the operations of the pulse waveform parameter calculation unit 207, the pulse waveform parameter comparison unit 208, the second user state estimation unit 209, and the second stimulation control unit 210 in the present embodiment. It is.
- pulse wave waveform parameter calculation section 207 receives pulse wave time-series data detected and accumulated by pulse wave detection section 201 (step S50). Next, the pulse wave waveform parameter calculation unit 207 calculates the waveform component ratio cZa of the acceleration pulse wave, which is the second-order differential value of the pulse wave, and uses the calculated waveform component ratio cZa as the current value N2 of the pulse waveform parameter. (Step S51).
- pulse wave parameter comparison unit 208 compares the difference between reference value K2 of pulse wave waveform parameter cZa and current value N2 with threshold value B1 (step S52). Specifically, the pulse waveform parameter comparison unit 208 calculates the difference between the reference value K2 of the pulse waveform parameter cZa and the current value N2, and determines whether the calculated difference is greater than or equal to the threshold value B1. To do. When the calculated difference is less than the predetermined threshold B 1 (NO in step S52), the second user state estimation unit 209 estimates that the stimulus intensity is too weak and the user's recognition is too weak at the current stimulus intensity (step S52). S53).
- the pulse waveform parameter comparison unit 208 determines the pulse waveform parameter.
- the difference between the cZa reference value K2 and the current value N2 is compared with the threshold B2 (step S54).
- the pulse waveform parameter comparison unit 208 determines whether or not the difference between the reference value K2 of the pulse waveform parameter cZa and the current value N2 is greater than or equal to the threshold B2. Note that the threshold B2 is equal to or greater than the threshold B1.
- the second user state estimation unit 209 recognizes that the user's recognition is appropriate at the current stimulus intensity, that is, Estimate that the stimulus is within the appropriate range (step S55).
- the second user state estimation unit 209 determines that the current stimulus intensity It is presumed that the perception of the user is too strong, causing pain or an adverse effect on the user (step S56).
- step S57 the second stimulus control unit 210 calculates a stimulus value I 2 that increases the current stimulus intensity and outputs it to the stimulus control switching unit 211.
- step S58 the second stimulus control unit 210 calculates a stimulus value 12 such that the current stimulus intensity is maintained, and outputs it to the stimulus control switching unit 211.
- step S59 the second stimulus control unit 210 calculates the stimulus value 12 such that the current stimulus intensity is weakened, and outputs it to the stimulus control switching unit 211. Since the pulse waveform parameter can be calculated from the pulse waveform for a few seconds (eg, about 5 seconds to about 10 seconds), it is quickly calculated for the pulse wave chaos parameter.
- the difference between the reference value of the pulse wave waveform parameter and the current value is, for example, the reference value-current value as in the case of the above-described pulse wave waveform parameter cZa. Or, for example, whether the current value is one reference value as in the case of the pulse rate may be appropriately selected, and a predetermined threshold (B1 and B2, where B1 ⁇ B2) may be set as appropriate.
- FIG. 18 is a flowchart showing the operation of the stimulus control switching unit 211 in the present embodiment.
- the stimulus control switching unit 211 compares the pulse wave waveform parameter cZa calculated by the pulse wave waveform parameter calculating unit 207 with a predetermined first threshold value (lower limit specified value) C1 (step S60). That is, the stimulus control switching unit 211 determines whether or not the pulse wave waveform parameter cZa is equal to or less than a predetermined first threshold value C1.
- the stimulus control switching unit 211 sets the membership value Ml to 0 (step S61).
- the membership value Ml is a weighting factor determined according to the pulse waveform parameter.
- the membership value Ml is calculated using a predetermined membership function fl that monotonically increases in the range of 0 to 1 with the pulse wave waveform parameter as input and the membership value Ml as output.
- the stimulation control switching unit 211 sets a predetermined second threshold (first specified value) C2 larger than the first threshold C1.
- the pulse waveform parameter cZa is compared (step S62). That is, the stimulation control switching unit 211 determines whether or not the pulse wave waveform parameter cZa is a force that is equal to or less than a predetermined second threshold C2.
- the stimulus control switching unit 211 calculates the membership value Ml according to the pulse waveform parameter cZa using the membership function fl. (Step S63).
- the stimulus control switching unit 211 has a predetermined third threshold (second specified value) C3 larger than the second threshold C2.
- the pulse waveform parameter cZa is compared (step S64). That is, the stimulus control switching unit 211 determines whether or not the pulse wave waveform parameter cZa is a force that is equal to or less than a predetermined third threshold value C3.
- the stimulus control switching unit 211 sets the membership value Ml to 1 (step S65).
- the stimulus control switching unit 211 sets a predetermined fourth threshold (upper limit value) C4 larger than the third threshold C3. Is compared with the pulse waveform parameter cZa (step S66). That is, the stimulation control switching unit 211 determines whether or not the pulse wave waveform parameter cZa is a force that is equal to or less than a predetermined fourth threshold C4. When the pulse waveform parameter cZa is less than or equal to the fourth threshold C4 (YES in step S66), the stimulation control switching unit 211 uses the membership function f2 to calculate the membership value Ml corresponding to the pulse waveform parameter cZa. Calculate (step S67).
- the membership function f2 is a function that monotonously decreases in the range of 0 to 1, and calculates the membership value M1 according to the value of the pulse waveform parameter c / a.
- stimulation control switching unit 211 sets membership value Ml to 0 (step S68).
- FIG. 19 is a graph showing the relationship between the pulse waveform parameter and the membership value Ml.
- the vertical axis indicates the membership value Ml
- the horizontal axis indicates the pulse waveform parameter.
- the membership value M1 0.
- the membership value Ml 0.
- the membership value Ml 0.
- step S69 the stimulus control switching unit 211 performs the calculation of the equation (1) using the stimulus values II and 12, and the membership value Ml to calculate the stimulus output value Ol, Output to stimulus generator 206.
- Stimulus output value Ol Stimulus value 12 X (1 Membership value Ml) + Stimulus value II X (Membership value ⁇ 1) ⁇ ⁇ ⁇ (1)
- the stimulus generation unit 206 Upon receiving the stimulus output value Ol, the stimulus generation unit 206 generates an stimulus having the intensity indicated by the stimulus output value Ol and provides the stimulus to the user.
- the pulse waveform parameter cZa calculated by the pulse waveform parameter calculation unit 207 is determined by the stimulation control switching unit 211 to be equal to or less than the first threshold C1
- the stimulation intensity It is judged that it is difficult to improve the user's condition (for example, relaxed feeling, comfortable feeling, thermal feeling, etc.) even if the stimulus is generated with the stimulus intensity as it is so weak that the membership value Ml is Set to 0.
- the weight of the stimulus value II that is dominant for improving the feeling of relaxation, comfort, or thermal sensation is 0, and the stimulus output value Ol is calculated using only the stimulus value 12.
- the stimulation output value Ol without using the pulse wave chaos parameter that takes time to calculate can be calculated.
- the stimulation output value Ol can be quickly calculated, and the stimulation intensity given to the user can be quickly determined. The strength can be appropriate.
- the pulse waveform parameter cZa calculated by the pulse waveform parameter calculation unit 207 is determined by the stimulation control switching unit 211 to be larger than the fourth threshold C4, the stimulation intensity is too strong. It is determined that there is a possibility that the user may be distressed or adversely affected, and the membership value Ml is set to 0 as described above. As a result, the stimulus output value Ol is calculated using only the stimulus value 12.
- the stimulation output value Ol without using the pulse wave chaos parameter that takes time to calculate is calculated.
- the stimulation intensity to the user is quickly weakened, and the stimulation is promptly performed.
- the strength of can be made appropriate.
- the pulse waveform parameter cZa calculated by the pulse waveform parameter calculation unit 207 is determined by the stimulation control switching unit 211 to be larger than the second threshold C2 and equal to or less than the third threshold C3, the pulse The waveform parameter cZa is in an appropriate range, the current stimulus intensity is appropriate, and it is determined that even if the stimulus of this intensity is continuously given to the user, there is no adverse effect such as pain.
- the membership value Ml is set to 1 by the stimulus control switching unit 211.
- the weight coefficient of the stimulus value 12 becomes 0, and the stimulus output value Ol is calculated using only the stimulus value II.
- the difference between the current value N1 of the pulse wave chaos parameter and the reference value K1 is equal to or greater than a predetermined threshold A1, the current stimulation intensity is maintained.
- the difference between the current value N1 of the pulse wave chaos parameter and the reference value K1 is smaller than the predetermined threshold A1, the current stimulation intensity is increased.
- the pulse waveform parameter cZa calculated by the pulse waveform parameter calculation unit 207 is determined by the stimulation control switching unit 211 to be greater than the first threshold C1 and equal to or less than the second threshold C2, 1
- the stimulus intensity is slightly weaker than when the threshold value is less than C1
- the user's condition e.g., relaxed or comfortable or hot / cold
- the stimulus value I 1 and the stimulus value 12 are mixed, and the stimulus output value Ol is calculated.
- the pulse waveform parameter cZa calculated by the pulse waveform parameter calculation unit 207 is determined by the stimulation control switching unit 211 to be greater than the third threshold C3 and equal to or less than the fourth threshold C4, 4
- the stimulus intensity is slightly higher than the threshold C4 or more, it is judged that there is a possibility that the user may be painful or adversely affected if the stimulus is continuously generated with this stimulus intensity.
- the stimulus value II and the stimulus value 12 are mixed, and the stimulus output value Ol is calculated.
- the user is given a moderately strong stimulus that is not too strong for the user, and the user's sense of relaxation, comfort, warmth or coolness can be improved more reliably.
- thermal stimulation such as cooling or heating
- airflow stimulation such as cold air or hot air
- physical stimulation such as massage
- substance stimulation such as oxygen or negative ions.
- Auditory stimuli such as pulsed sound, music and ultrasound
- visual stimuli such as light, lighting and video.
- the stimulus control switching unit 211 is based on the force pulse waveform parameter for which the pulse waveform parameter is compared with the threshold (Cl, C2, C3, C4).
- the difference between the reference value (K2) and the current value (N2) may be compared with an appropriately set threshold value.
- the first user state estimation unit 204 that estimates the user state based on the pulse wave chaos parameter, and the second user state that estimates the user state based on the pulse wave waveform parameter
- the present invention is not limited to this, and the stimulus generation unit 206 may be controlled based only on the pulse wave force parameter.
- the pulse waveform parameter calculation unit 207 to the stimulation control switching unit 211 are not necessary, and the first stimulation control unit 205 may directly control the stimulation generation unit 206 based on the calculated stimulation value II.
- the user's comfort feeling is estimated using the pulse wave chaos parameter, and the thermal feeling is estimated. Based on the estimation result, the user's feeling of comfort or thermal feeling is improved.
- the present inventors have given the human comfort to the thermal and thermal stimulation to the living body.
- the subject was rested in a slightly cool environment while sitting on a chair, and then a foot bath was applied for a while with hot water as an example of thermal stimulation in that environment. After that, the hot water was also rested with the feet out.
- the subject's pulse wave was detected and accumulated as time-series data. The subjects also reported subjective changes in comfort and thermal sensation.
- Fig. 20 is a diagram showing an example of changes in Lyapunov exponents obtained by chaos analysis of pulse waves before, during and after foot bathing, and changes in subjective reports related to comfort and thermal sensation. is there.
- square marks indicate subjective reports regarding comfort before foot bathing, during foot bathing, and after foot bathing
- triangular marks indicate subjective reports regarding thermal sensation before, during, and after foot bathing.
- the rhombus marks represent Lyapunov exponents before, during and after foot bathing.
- the present inventors conducted various analyzes on the correlation between the subject's pulse wave time-series data and the subjective feeling of comfort and the feeling of cooling. As a result, as shown in FIG. It was found that there was a high correlation between the change of Lyapunov exponent obtained by chaotic analysis of the pulse wave during foot bathing and after foot bathing, and the subjective report on comfort and thermal sensation, which led to the completion of the present invention. It is. In other words, it is a little cool before foot bathing, so comfort is almost neutral or slightly uncomfortable, and thermal feeling is declared on the cold side. In contrast, comfort and warmth are both great during foot bathing! It is declared on the 1st and the warm side. In addition, after a foot bath, it will be left in a cool environment, so the feeling of comfort is almost neutral and slightly uncomfortable, and the feeling of warmth is reported to the cold side.
- the Lyapunov exponent which is the chaos analysis result of the pulse wave, shows a tendency to increase greatly from foot bathing to foot bathing, and to decrease again from foot bathing to foot bathing.
- a high correlation was found between changes in the subjective report of feeling.
- thermo / thermal stimulation or Stimulation that improves the feeling can be given.
- environmental control that can be fully applied to the control of equipment that constitutes the user's living environment (especially equipment that provides thermal and thermal stimulation to users, such as air-conditioning equipment and bathroom environment equipment such as hot-water supply equipment) A device can be provided.
- Embodiment 6 of the present invention First, the principle of estimating the user's comfort using the parameters for evaluating the pulse wave used in the present invention and the principle of estimating the user's thermal sensation using the parameters for evaluating the pulse wave used in the present invention are described. To do.
- acceleration pulse wave before and after giving a stimulus related to thermal sensation to the user.
- the maximum value of the acceleration pulse wave height (acceleration pulse wave height maximum value) or the maximum value of the pulse wave height (maximum pulse wave height) and the change in the thermal sensation of the subjective report We found a high correlation.
- the maximum value of the acceleration pulse wave height is the maximum peak value of a plurality of peak values of acceleration pulse wave waveforms acquired within a predetermined time, or a plurality of peak values.
- the average value and the peak value of the acceleration pulse waveform for one beat included in the acceleration pulse waveform for several beats acquired within a predetermined time can be adopted.
- the pulse wave height maximum value is the maximum peak value or the average value of a plurality of peak values among a plurality of peak values of the pulse waveform for several beats acquired within a predetermined time, and The peak value of the pulse waveform for one beat included in the pulse waveform for several beats acquired within a predetermined time can be used.
- Embodiment 6 of the present invention will be described with reference to the drawings.
- FIG. 21 is a block diagram showing a configuration of the environment control system in the sixth embodiment of the present invention.
- the environmental control system shown in FIG. A biological information collection unit (biological information acquisition unit) 301, a parameter extraction unit (parameter calculation unit) 302, a parameter variation determination unit (estimation unit) 303, a stimulation control unit (stimulation control unit) 3 04, and a stimulation output unit 305 It has.
- the biological information collection unit 301 to the stimulation output unit 305 are realized by executing the CPU power S of the computer in which the environment control program according to the present invention is installed.
- the biological information collecting unit 301 samples the fingertip pulse wave of the user detected by a known transducer or the like at a predetermined sampling period, and acquires pulse wave data in time series.
- the parameter extraction unit 302 extracts and accumulates the waveform component ratio of the acceleration pulse wave obtained by second-order differentiation of the pulse wave waveform obtained from the pulse wave data as a parameter for evaluating the pulse wave.
- the acceleration pulse wave waveform is as shown in FIG. Therefore, in the present embodiment, cZa having the distance a to the baseline force vertex A of the calo velocity pulse waveform as the denominator and the distance c to the baseline force vertex C as the numerator is extracted as the waveform component ratio.
- bZa, d / a, and eZa may be used as the waveform component ratio instead of cZa, but cZa has a particularly high correlation with comfort.
- the parameter fluctuation determination unit 303 calculates the fluctuation of the waveform component ratio extracted by the parameter extraction unit 302, estimates the user's comfort feeling, and determines the stimulus content from the estimation result. Then, the parameter variation determination unit 303 outputs a stimulus output command to the stimulus control unit 304 so that a stimulus corresponding to the determined stimulus content is output from the stimulus output unit 305.
- the parameter variation determination unit 303 receives the waveform component ratio extracted immediately after receiving the stimulus output signal output when the stimulus output unit 305 outputs the stimulus and the stimulus output signal. Dividing the difference from the waveform component ratio extracted immediately before by the above sampling period, the differential value of the waveform component ratio is calculated, and this differential value is determined in a specific range 1 to 3 (described later). The user's comfort is estimated by judging whether it is included in the deviation.
- the stimulus control unit 304 outputs a stimulus output command to the stimulus output unit 305 and controls the stimulus output unit 305.
- the stimulus output unit 305 outputs a stimulus output signal indicating that the stimulus has been output to the parameter variation determination unit 303 at the same time as outputting the stimulus to the user.
- FIG. 22 is a flow chart showing processing of the environment control system in the sixth embodiment of the present invention.
- the biological information collection unit 301 collects and accumulates time series data of pulse waves.
- the parameter extraction unit 302 extracts and accumulates the waveform component ratio cZa at regular time intervals for the time-series data force of the pulse wave collected by the biological information collection unit 301 (step S71).
- the parameter variation determination unit 303 determines whether or not the force has received the stimulus output signal from the stimulus output unit 305 (step S72). If no stimulus output signal is received from the stimulus output unit 305 (NO in step S72), the process returns to step S71, and the processes of step S71 and step S72 are repeatedly executed until the stimulus output signal is received. Is done.
- the parameter variation determination unit 303 receives the stimulus output signal from the stimulus output unit 305 (YES in step S72), the waveform extracted by the parameter extraction unit 302 immediately after receiving the stimulus output signal
- the differential value ⁇ cZa of the waveform component ratio is obtained from the component ratio cZa and the waveform component ratio cZa extracted by the parameter extraction unit 302 immediately before receiving the stimulus output signal, and the user's comfort is determined based on the differential value A cZa.
- a feeling output is estimated, a stimulus content is determined from the estimation result, and a stimulus output command is output to the stimulus control unit 304 so that a stimulus according to the determined stimulus content is output from the stimulus output unit 305 (step S73).
- the stimulus control unit 304 causes the stimulus output unit 305 to output a stimulus according to the stimulus output command output from the parameter variation determination unit 303 (step S74).
- FIG. 23 is a flowchart showing the process of the parameter variation determination unit 303 according to the sixth embodiment of the present invention.
- the parameter variation determination unit 303 determines whether or not a stimulus output signal has been received from the stimulus output unit 305 (step S80).
- the process of step S80 is repeatedly executed at a predetermined timing until the stimulus output signal is received.
- the noramometer fluctuation determination unit 303 among the waveform component ratio cZa extracted by the parameter extractor 302, immediately before receiving the stimulus output signal. Based on the ratio cZa and the immediately following waveform component ratio cZa, a differential value ⁇ cZa is calculated (step S81).
- the present inventors have improved the phenomenon that the waveform component ratio changes and the user's comfort. It was found that there is a high correlation with the phenomenon. Therefore, in this environment control system, the user's comfort is estimated based on the fluctuation of the waveform component ratio.
- the meter fluctuation determining unit 303 determines whether or not the differential value ⁇ cZa falls within a specific range 1 indicating that the waveform component ratio cZa does not fluctuate very much (step S82).
- the specific range 1 is, for example, ⁇ 0.05 and A c / a ⁇ +0.05. If the differential value A cZa falls within the specific range 1 (YES in step S82), the parameter fluctuation determination unit 303 estimates that the user's comfort has not changed, and needs a stimulus to improve the comfort. Determine, for example, output a stimulus output command to the stimulus control unit 304 that increases the intensity of the stimulus with the same type as the previous stimulus or lengthens the time for applying the stimulus (step S83). A feeling can be obtained.
- the meter fluctuation determination unit 303 determines that the differential value ⁇ cZa of the waveform component ratio cZa is within the specific range 1. Determines whether the force falls within a different specific range 2 (step S84).
- the specific range 2 is, for example, -0.2. ⁇ A c / a ⁇ -0.05.
- the parameter change determination unit 303 estimates that the user's comfort is improved, and a stimulus that maintains or improves the comfort. For example, a stimulus output command that has the same intensity and the same intensity as the previous stimulus is output to the stimulus control unit 304 (step S85). As a result, the stimulus output unit 305 can continuously output a stimulus that allows the user to obtain a comfortable feeling to the user.
- the user can maintain a comfortable feeling.
- the parameter variation determination unit 303 sets the variation of the waveform component ratio to the specific range 3 that is different from the specific range 2. It is determined whether or not it fits (step S86).
- the specific range 3 is, for example, +0. 05 ⁇ A c / a ⁇ +0.2. If the differential value A cZa falls within the specific range 3 (YES in step S86), the parameter variation determination unit 303 estimates that the user's comfort level has decreased, and determines that a stimulus that improves the comfort level is necessary. A stimulus output command that is different from the previous one is output (step S87).
- the parameter variation determination unit 303 detects an unexpected risk.
- the system is determined to be in a safe state and the system is urgently stopped (step S88).
- the environmental control system since the user's comfort is estimated from the user's pulse wave, the comfort of the user without causing discomfort to the user. A feeling can be estimated.
- the pulse wave force since the pulse wave force also estimates comfort, an expensive device is not necessary compared to estimating comfort from brain waves, so that the user can feel comfortable even at home. Can be created easily.
- the user's comfort is estimated from the fluctuation of the waveform component ratio cZa before and after the stimulus is output to the user, the user's reaction to the stimulus can be reliably grasped.
- the user's feeling of comfort is estimated based on the user's response to the stimulus, and the stimulus content is determined based on the estimation result. This makes it possible to ensure that the user feels comfortable. Furthermore, by repeating this series of processing, it is possible to reliably maintain a comfortable feeling for the user.
- the waveform component ratio cZa of the acceleration pulse wave is adopted as the pulse wave parameter, so that complicated processing is not required and the system can be realized with a simple configuration. It is possible to estimate a comfortable feeling with higher accuracy by using a powerful pulse wave that has not been realized in the past.
- the differential value ⁇ cZa of the waveform component ratio cZa is calculated as the parameter variation before and after the stimulus is output, and the comfortable feeling is estimated using this differential value ⁇ cZa.
- the user's reaction to can be extracted more reliably.
- the comfortable feeling is estimated by determining whether the differential value ⁇ cZa falls within a specific range 1 to 3, the user's reaction can be grasped in detail, and the user's comfortable feeling can be grasped. The estimation accuracy of can be further improved.
- the intra-stimulus determined by parameter variation determining section 303 The contents include the type of stimulus, the intensity of the stimulus, and the time for which the stimulus is applied.
- the types of stimulation include thermal and thermal stimulation such as cooling and heating, airflow stimulation such as cold and warm air, physical stimulation such as massage, and substance stimulation such as oxygen and negative ions.
- parameter variation determination section 303 may determine whether or not the variation of the waveform component ratio falls within the range of specific range 1 and specific range 3 combined. . If the fluctuation of the waveform component ratio falls within this range, the parameter fluctuation determination unit 303 estimates that the user's comfort is not improved, determines that a stimulus for improving the comfort is necessary, A stimulus output command such as On the other hand, when the fluctuation of the waveform component ratio does not fall within the range of the specific range 1 and the specific range 3, the parameter fluctuation determination unit 303 further reduces the fluctuation of the waveform component ratio within the specific range 2. Judgment is made of power or not.
- the parameter fluctuation determination unit 303 estimates that the user's comfort is improved, determines that a stimulus for maintaining or improving the comfort is necessary, A stimulus output command is output with the same intensity and the same intensity. If the fluctuation of the waveform component ratio does not fall within the specific range 2, the parameter change determination unit 303 determines that the user is in an unexpected dangerous state, and causes the system to stop urgently.
- the parameter variation determination unit 303 determines the V based on the waveform component ratio cZa immediately after the stimulus is output from the stimulus output unit 305 and the waveform component ratio cZa immediately before.
- the differential value ⁇ c / a was calculated and the user's comfort was estimated using this differential value ⁇ c / a.
- the present invention is not limited to this, and the waveform component ratio cZa immediately before and the waveform component ratio cZa immediately after The user's comfort may be estimated based on the difference.
- the parameter variation determination unit 303 determines which range the difference belongs to and determines the user's comfort feeling. do it.
- the parameter variation determination unit 303 is based on the waveform component ratio cZa immediately before receiving the stimulus output signal output from the stimulus output unit 305 and the waveform component ratio cZa immediately after reception.
- the force when receiving the stimulus output signal The average value of the multiple waveform component ratios cZa extracted in the past fixed period, Calculate the average value or differential value of each difference, and based on the calculated value and the waveform component ratio cZa immediately after receiving the stimulus output signal, the differential value ⁇ cZa of the waveform component ratio is! / ⁇ May calculate the difference and estimate the user's comfort based on the result.
- the parameter variation determination unit 303 estimates the user's comfort and determines the stimulus content based on the user's comfort. You may display on a display part and may show to a user.
- the stimulus output unit 305 outputs a stimulus output signal indicating that a stimulus has been output to the parameter variation determination unit 303, and the parameter variation determination unit 303 immediately before receiving the stimulus output signal.
- the stimulus output unit 305 does not output a stimulus output signal
- the parameter variation determination unit 303 is provided with a time measuring unit for measuring time so that a certain value is calculated.
- the differential value may be calculated from the waveform component ratio immediately before and immediately after the elapse of time, or immediately before and after the elapse of the time for applying the stimulus included in the stimulus content.
- the rate of change of the waveform component ratio during a predetermined time be a differential value.
- the time measuring unit for measuring time is made independent from the parameter variation determining unit 303, and the time measuring unit and the parameter variation determining unit 303 are connected to each other so that they can communicate with each other. May be sent to the parameter change determination unit 303.
- the inventors of the present invention have a high correlation between the phenomenon that the pulse rate PR of the pulse wave increases before and after the stimulation that promotes the user's comfort feeling and the phenomenon that the comfort feeling of the subjective report improves. I also found out.
- the norslate PR is a so-called pulse rate, and is generally said to decrease in a relaxed state or in a good state (removed comfortable space) due to removal of discomfort.
- the fluctuation of the waveform component ratio cZa of the acceleration pulse wave in Embodiment 6 was estimated based on fluctuations in the pulse rate PR of the pulse wave.
- the environment control system according to the seventh embodiment will be described below.
- the parameter extraction unit 302 extracts the pulse rate PR of the pulse wave as a parameter, and uses the pulse rate PR from the pulse wave data collected by the biological information collection unit 301 for a certain period of time, for example, every sampling period. The value of is extracted and accumulated.
- the parameter fluctuation determination unit 303 estimates the user's comfort based on fluctuations in the pulse rate PR immediately before and immediately after receiving the stimulus output signal from the stimulus output unit 305, and determines the stimulus content to be output from the estimation result. .
- FIG. 24 is a flowchart showing processing of the parameter variation determination unit 303 in the seventh embodiment of the present invention. Note that steps that perform the same processing as in the sixth embodiment are given the same step numbers and description thereof is omitted.
- the parameter variation determination unit 303 receives the stimulus output signal from the stimulus output unit 305 (YES in step S80), among the pulse rates PR extracted and accumulated by the parameter extraction unit 302, The pulse rate PR immediately before reception of the stimulus output signal and the pulse rate PR immediately after reception are extracted, and the differential value A PR of the change is calculated (step S91).
- the differential value A PR is obtained by dividing the difference between the immediately preceding pulse rate PR and the immediately following pulse rate by the sampling period.
- the parameter variation determination unit 303 determines whether or not the differential value APR is within a specific range 4 (step S92).
- the specific range 4 is, for example, ⁇ 1.0 ⁇ A PR ⁇ +1.0. If the differential value A PR falls within the specific range 4 (YES in step S92), the process proceeds to step S83. If the differential value ⁇ PR does not fall within the specific range 4 (NO in step S 92), the parameter variation determination unit 303 determines whether the differential value A PR falls within the specific range 5 that is different from the specific range 4. Is determined (step S93).
- the specific range 5 is For example, + 1. 0 ⁇ A PR + 10.
- step S93 If the differential value ⁇ PR falls within the specific range 5 (YES in step S93), the process proceeds to step S85. On the other hand, when the differential value A PR does not fall within the specific range 5 (NO in step S93), the parameter variation determination unit 303 determines whether the differential value A PR falls within the specific range 6 that is different from the specific range 5. Is determined (step S94).
- the specific range 6 is, for example, ⁇ 10 and A PR ⁇ -1.0. If the differential value A PR falls within the specific range 6, the parameter variation determination unit 303 estimates that the user's comfort has decreased, and advances the processing to step S87. On the other hand, if the differential value A PR does not fall within the specific range 6 (NO in step S94), the process proceeds to step S88.
- the parameter variation determination unit 303 calculates the differential value based on the pulse rate PR immediately before receiving the stimulus output signal output from the stimulus output unit 305 and the pulse rate PR immediately after it.
- the calculated force The difference between the immediately preceding pulse rate PR and the immediately following pulse rate PR may be calculated, and the user's comfort may be estimated based on the difference.
- the parameter variation determination unit 303 determines the differential value A from the pulse rate PR immediately before receiving the stimulus output signal output from the stimulus output unit 305 and the pulse rate PR immediately after it.
- the PR was calculated
- the reception power of the stimulus output signal was also calculated by calculating the average value of multiple pulse rates PR extracted during a certain period in the past, the average value of each difference, or the differential value.
- the differential value A PR or the difference may be calculated based on the pulse rate PR immediately after receiving the stimulus output signal, and the user's comfort may be estimated based on the result.
- the parameter fluctuation determination unit 303 estimates the user's comfort from the fluctuation of the pulse rate PR, but the waveform component ratio cZa described in the sixth embodiment and this In combination with the pulse rate PR described in the embodiment, the user's comfort may be estimated based on the variation between the two.
- the stimulus output unit 305 outputs a stimulus output signal indicating that the stimulus has been output to the parameter variation determination unit 303, and the parameter variation determination unit 303
- the differential value is calculated based on the pulse rate PR immediately before and after the reception of the output signal.
- the stimulus output unit 305 does not output the stimulus output signal, and the parameter variation determination unit 303 measures the time.
- the differential value may be calculated based on the pulse rate PR immediately before and immediately after a certain period of time or immediately before and immediately after the time for applying the stimulus included in the stimulation content elapses. .
- the rate of change of the pulse rate PR during a predetermined time may be a differential value.
- the time measuring unit for measuring time is made independent from the parameter variation determining unit 303, and the time measuring unit and the parameter variation determining unit 303 are connected to each other so that they can communicate with each other. It may be sent to the parameter fluctuation judgment unit 303.
- FIG. 25 is a block diagram showing a configuration of the environment control system according to the eighth embodiment of the present invention. Note that the same reference numerals in the eighth embodiment denote the same parts as those in the sixth embodiment, and a description thereof will be omitted.
- the environment control system according to the eighth embodiment further includes a timing detection unit 307 and a function of the parameter variation determination unit 306 is different from the environment control system according to the sixth embodiment.
- the timing detection unit 307 also determines and outputs the timing for outputting the stimulus output command.
- the timing detection unit 307 enters the active mode triggered by the reception of the stimulus output signal from the stimulus output unit 305.
- the timing detection unit 307 sets the comfort flag (initial value 0), which is a flag indicating an improvement in comfort, to 1. Set.
- the timing detection unit 307 sets the comfort flag to 0 each time a stimulus output signal is received.
- the parameter fluctuation determination unit 306 includes a power counter that continuously counts the number of times it is determined that the user's comfort is not improved. ing.
- the count value of this counter is represented as countO.
- FIG. 26 is a flowchart showing the processing of the environmental control system in the eighth embodiment of the present invention. Components that perform the same processing as in Embodiment 6 are given the same step numbers and description thereof is omitted.
- the biological information collection unit 301 collects and accumulates time series data of pulse waves (step S70).
- the parameter extraction unit 302 extracts and accumulates the value of the waveform component ratio cZa at regular time intervals of the time-series data force of the pulse wave collected by the biological information collection unit 301 (step S71).
- the parameter variation determination unit 306 uses the waveform component ratio cZa extracted by the parameter extraction unit 302 at the present time and the waveform component ratio cZa extracted by the parameter extraction unit 302 immediately before receiving the stimulus output signal. A change in the ratio is obtained, and the user's comfort is estimated based on the change (step S101).
- the timing detection unit 307 determines whether or not a stimulus output signal has been received from the stimulus output unit 305 (step S102). When receiving the stimulus output signal from the stimulus output unit 305 (YES in step S102), the timing detection unit 307 enters the active mode and sets the comfort flag to 0 (step S103). If no stimulus output signal is received from stimulus output unit 305 (NO in step S102), the process returns to step S101.
- step S101 if it is estimated in step S101 that the user's comfort is improved, if the stimulus output signal is received from the stimulus output unit 305 (YES in step S102), the timing detection unit 307 Set the flag to 1 (step S103).
- the parameter change determination unit 306 determines whether or not it is a force to output a stimulus output command to the stimulus control unit 304 (step S104).
- the parameter fluctuation determination unit 306 determines the presence / absence of stimulus output and the content of the stimulus based on the estimation result of the user's comfort, the comfort flag setting value in the timing detection unit 307, and the value of countO, and outputs the stimulus output. If it is determined to be performed, a stimulus output command is output to the stimulus control unit 304.
- the stimulus control unit 304 causes the stimulus output unit 305 to output a stimulus according to the stimulus output command output from the parameter variation determination unit 306. (Step S105). On the other hand, when it is determined that the stimulus output command is not output to the stimulus control unit 304 (NO in step S104), the process returns to step S101.
- FIG. 27 and FIG. 28 are flowcharts showing processing of the parameter variation determination unit 306 in Embodiment 8 of the present invention.
- the timing detection unit 307 is a stimulus output unit 305.
- the stimulation output signal is received and the comfort flag is set to 0 (step S111).
- the parameter variation determination unit 306 is based on the wave formation ratio cZa extracted by the parameter extraction unit 302 at the present time and the waveform component ratio cZa extracted by the parameter extraction unit 302 immediately before receiving the stimulus output signal. ! / Calculate the differential value ⁇ cZa of the waveform component ratio (step S1 12).
- parameter variation determination section 306 determines whether or not differential value A cZa is a value that falls within a specific range 1 (step S113).
- the specific range 1 is, for example, ⁇ 0.05 and Ac / a ⁇ +0.05.
- the parameter variation determination unit 306 refers to the comfort flag set by the timing detection unit 307, and the comfort flag is 0. Judgment is made on whether or not (Step S114). If the comfort flag is 0 (YES in step SI14), parameter variation determination section 306 estimates that the user's comfort has not changed (step S115).
- the parameter variation determination unit 306 determines that a stimulus that improves comfort is necessary, and controls the stimulus output command to increase the intensity of the stimulus or increase the time for applying the stimulus with the same type as the previous time, for example.
- the data is output to part 304 (step S116). Thereby, the user can obtain a comfortable feeling.
- the process returns to step S111.
- parameter fluctuation determination unit 306 increments the value of countO (add 1: step S117), and countO is a predetermined value, For example, it is determined whether or not 5 has been reached (step S118). When countO has reached 5 (YES in step S118), parameter variation determining section 306 estimates that adaptation starts in the user's living body (step S119). Next, the parameter variation determination unit 306 outputs the stimulus output command output immediately before stopping the output of the stimulus output command in the processing step S121 ′ described later to the stimulus control unit 304 again (step S120). After the stimulus output command is output to the stimulus control unit 304, the process returns to step SI11.
- parameter variation determination unit 306 estimates that adaptation has not yet started in the user's living body (step S121). Next, the parameter variation determination unit 306 determines not to output a stimulus output command (step S1 21 ′), the process returns to step SI12, and the determination process for the next differential value A cZa is performed.
- the meter fluctuation determination unit 306 performs the differential value A cZa in the same manner as in the sixth embodiment. It is determined whether or not the force falls within a specific range 2 different from the specific range 1 (step S122).
- the specific range 2 is, for example, -0.2 and A c / a ⁇ -0.05.
- the parameter variation determination unit 306 estimates that the user's comfort is improved, and resets countO (step S123).
- the timing detection unit 307 sets the comfort flag to 1 (step S124).
- the parameter variation determination unit 306 determines not to output a stimulus output command (step S121 ′), returns the process to step S112, and performs a determination process for the next differential value ⁇ cZa.
- the meter fluctuation determination unit 306 determines that the differential value A cZa is a specific value in the same manner as in the sixth embodiment. It is determined whether or not the force falls within a specific range 3 different from the range 2 (step S125). Note that the specific range 3 is, for example, +0. 05 ⁇ A c / a ⁇ +0.2. If the differential value A cZa falls within the specific range 3 (YES in step SI 25), the parameter variation determination unit 306 estimates that the user's comfort level has decreased (step S 126).
- the parameter variation determination unit 306 determines that a stimulus that improves the comfort is necessary, and outputs, for example, a stimulus output command that is of a different type from the previous time to the stimulus control unit 304 (step S127). On the other hand, if the differential value A cZa does not fall within the specific range 3 (NO in step S 125), the parameter variation determination unit 306 estimates that the user is in an unexpected dangerous state and stops the system urgently ( Step S 128).
- the stimulus content determined by the parameter variation determination unit 303 is a short-term or instantaneous stimulus (for example, airflow stimulus such as cold air or hot air, oxygen Assuming the case of substance stimulation such as negative ions).
- a description will be given of processing in the parameter variation determination unit 303 when the stimulus content is a steady stimulus (for example, a physical stimulus such as a massage stimulus, and a warm / cool stimulus such as cooling or heating by an air conditioner).
- FIG. 29 and FIG. 30 are flowcharts showing processing of the parameter variation determination unit 306 when the stimulus content is a steady stimulus.
- step S120 shown in FIG. 27 the parameter variation determination unit 303 outputs the stimulus output command that was output immediately before stopping the output of the stimulus output command in step S121 ′, and returns the processing to step S111.
- step S120a shown in FIG. 29 a stimulus output command that improves the feeling of comfort more than the stimulus content output in step S121′a, which will be described later, is output in step S121′a. Then, a stimulus output command that further strengthens the stimulus is output, and the process returns to step S111.
- step S121 'shown in Fig. 27 parameter fluctuation determination unit 303 did not output the stimulus output command, but in step S121'a shown in Fig. 29, it output immediately before.
- the stimulus output command is output again, and the process returns to step S112.
- it can be applied to a system equipped with a device that outputs a steady stimulus, and the range of technology application can be expanded.
- parameter fluctuation determining section 303 estimates the user's comfort from the fluctuation of waveform component ratio cZa.
- the pulse rate PR described in the seventh embodiment and this implementation are used.
- the user's comfort may be estimated based on the fluctuation of both.
- the stimulus content determined by the parameter variation determination unit 303 includes the type of stimulus, the intensity of the stimulus, the time for which the stimulus is applied, and the like.
- the types of stimuli include short-term (instantaneous) stimuli, such as airflow stimuli such as cold and hot air, substance stimuli such as oxygen and negative ions, visual stimuli such as pulse sounds, and visual stimuli such as light.
- short-term (instantaneous) stimuli such as airflow stimuli such as cold and hot air, substance stimuli such as oxygen and negative ions, visual stimuli such as pulse sounds, and visual stimuli such as light.
- airflow stimuli such as cold and hot air
- substance stimuli such as oxygen and negative ions
- visual stimuli such as pulse sounds
- visual stimuli such as light.
- steady stimulation cooling and heating and other thermal stimulation
- physical stimulation such as massage, music And auditory stimuli such as ultrasound, and visual stimuli such as lighting and video.
- control to increase or decrease the air volume if air current stimulation such as cold or hot air control to increase or decrease the amount of substance if substance stimulation such as oxygen or negative ions
- Controls related to the intensity of stimulation such as control for raising or lowering the set temperature for heating and cooling stimuli such as cooling and heating, and control for increasing or decreasing the strength of physical stimulation such as massage. Shall be performed.
- the stimulus output unit 305 outputs a stimulus output signal indicating that the stimulus has been output to the timing detection unit 307, and the timing detection unit 307 outputs the stimulus output from the stimulus output unit 305.
- the active mode is triggered by the reception of the signal.
- the parameter variation determining unit 303 includes a time measuring unit for measuring time, and the stimulus output unit 305 is used as the stimulus output signal.
- the parameter fluctuation determination unit 303 outputs a signal indicating the passage of time to the timing detection unit 307 when a certain period of time has passed or when the stimulus given in the stimulus content has passed.
- the timing detection unit 307 may be set to the active mode.
- the time measuring unit for measuring time is made independent from the parameter variation determining unit 303, and the time measuring unit and the parameter variation determining unit 303 are connected to each other so that they can communicate with each other. May be transmitted to the parameter fluctuation determining unit 303.
- the parameter extraction unit 302 extracts the waveform component ratio of the acceleration pulse wave obtained by second-order differentiation of the pulse wave waveform obtained from the pulse wave data as a parameter for evaluating the pulse wave, and stores it in a memory (not shown).
- the acceleration pulse wave waveform is the same as in Embodiment 6.
- the waveform component ratio is cZa with the distance a to the baseline force vertex A of the acceleration pulse waveform as the denominator and the distance c to the baseline force vertex C as the numerator. Extract as
- the parameter variation determination unit 303 forms the wave formed by the parameter extraction unit 302. Calculates the fluctuation of the ratio, calculates the resulting thermal sensation, estimates the user's thermal sensation, determines the stimulus content from the estimation result, and outputs the stimulus according to the determined stimulus content so that the stimulus output unit 305 outputs the stimulus The command is output to the stimulus control unit 304.
- the parameter variation determination unit 303 receives the waveform component ratio extracted immediately after receiving the stimulus output signal output when the stimulus output unit 305 outputs the stimulus and the stimulus output signal. Divide the difference from the waveform component ratio extracted immediately before by the sampling period when the fingertip pulse wave was sampled to calculate the differential value of the waveform component ratio, and use this differential value to calculate the user's temperature. Estimate cold feeling.
- FIG. 31 is a flow chart showing processing of the environment control system in the ninth embodiment of the present invention.
- the biological information collection unit 301 collects and accumulates time series data of pulse waves (step S131).
- the parameter extraction unit 302 extracts and accumulates the waveform component ratio cZa at regular intervals based on the pulse wave time-series data collected by the biological information collection unit 301 (step S132).
- the parameter variation determination unit 303 determines whether or not the force has received the stimulus output signal from the stimulus output unit 305 (step S133). If no stimulus output signal is received from the stimulus output unit 305 (NO in step S133), the process returns to step SI32.
- the parameter fluctuation determination unit 303 receives the stimulus output signal from the stimulus output unit 305 (YES in step S133), the parameter component ratio extracted by the parameter extraction unit 302 immediately after receiving the stimulus output signal is determined.
- the differential value ⁇ cZa of the waveform component ratio is obtained based on cZa and the waveform component ratio cZa extracted by the parameter extraction unit 302 immediately before receiving the stimulus output signal, and the user's thermal sensation is obtained based on the differential value.
- the stimulation content is determined from the estimation result, and a stimulation output command is output to the stimulation control unit 304 so that the stimulation based on the determined stimulation content is output from the stimulation output unit 305 (step S134).
- the stimulus control unit 304 causes the stimulus output unit 305 to output a stimulus according to the stimulus output command output from the parameter variation determination unit 303 (step S135).
- FIG. 32 is a flowchart showing the process of the parameter fluctuation determining unit 303 according to the ninth embodiment of the present invention.
- parameter variation determination section 303 determines whether or not a stimulus output signal has been received from stimulus output section 305 (step S141).
- the process of step S141 is repeatedly executed at a predetermined timing until the stimulus output signal is received.
- the parameter variation determination unit 303 When the parameter variation determination unit 303 receives the stimulation output signal from the stimulation output unit 305 (YES in step S141), the parameter variation determination unit 303 immediately before receiving the stimulation output signal out of the waveform component ratio cZa extracted by the parameter extraction unit 302.
- the differential value ⁇ cZa is calculated based on the waveform component ratio cZa and the immediately following waveform component ratio cZa (step S 142).
- FIG. 33 is a graph showing the correlation between the waveform component ratio and the user's thermal sensation found by the present inventors in the subject experiment.
- the horizontal axis represents the user's thermal sensation
- the vertical axis represents the waveform component ratio
- the user's thermal sensation has a downwardly convex quadratic curve shape, and when the user's thermal sensation is near 0, the waveform component ratio shows the minimum value. Yes.
- the waveform component ratio increases as the thermal feeling of the user increases, that is, the user feels hot.
- the wave formation ratio increases as the user's feeling of thermal cooling decreases, that is, the user feels cold. Therefore, if the fluctuation of the waveform component ratio is known as shown in this graph, the user's thermal sensation can be estimated. Therefore, in this environmental control system, the thermal sensation of the user is estimated based on the characteristics of the waveform components as shown in this graph. If the user's thermal sensation is 0, the user does not feel hot or cold.
- step S143 shown in Fig. 32 the parameter variation determination unit 303 determines whether or not the differential value Acca of the waveform component ratio is negative. If the differential value A cZa is negative (YES in step S143), the parameter fluctuation determination unit 303 changes the user's thermal sensation toward a cold state or a hot state force in a neutral state that is neither hot nor cold. In other words, it is estimated that the thermal sensation of the user approaches 0 and the thermal sensation has improved (step S 144). Next, the parameter variation determination unit 303 outputs a stimulus output command that maintains the thermal sensation (step S145). On the other hand, the parameter variation determination unit 303 determines that the differential value A c / a is not negative.
- step S143 it is estimated that the user's thermal sensation is neither hot nor cold, but the neutral state force has changed in the direction of cold or hot, that is, the thermal sensation has deteriorated (step S146).
- the parameter variation determination unit 303 outputs a stimulus output command that improves the thermal sensation (step S147).
- the inventors have found that there is a correlation between fluctuations in pulse wave parameters and the user's thermal sensation. Since the thermal sensation of the user is estimated using the logic, the thermal sensation of the user can be accurately estimated. Therefore, the pulse wave force can also estimate the user's thermal sensation, and the user's thermal sensation without causing discomfort to the user can be estimated. In addition, since the user's thermal sensation is estimated using the pulse wave, the system is configured using a specialized and expensive machine as in the case where the user's thermal sensation is estimated using an electroencephalogram. There is no need. As a result, it is possible to provide a system that allows the user to feel comfortable in the living environment.
- the differential value A of the waveform component ratio A immediately before the parameter fluctuation determination unit 303 determines whether or not the differential value ⁇ cZa of the waveform component ratio is negative in step S143. It is judged whether or not the force is within a specific range (eg, 0.01 to 0.01), and if it is within the specific range, the thermal sensation of the user has hardly changed. It is also possible to output a stimulus output command that continues or cancels the current stimulus output content!
- a specific range eg, 0.01 to 0.01
- the stimulus content determined by the parameter variation determination unit 303 includes the cool / heat stimulus such as cooling / heating, the cool air / air flow stimulus such as warm air, the intensity of the stimulus, and the stimulus. Time to give.
- the parameter variation determination unit 303 determines the V based on the waveform component ratio cZa immediately after the stimulus is output from the stimulus output unit 305 and the waveform component ratio cZa immediately before.
- the differential value ⁇ c / a is calculated, and the thermal sensation of the user is estimated using this differential value ⁇ c / a.
- the present invention is not limited to this, and the immediately preceding waveform component ratio cZa and the immediately following waveform component ratio are calculated. You can calculate the difference with cZa and estimate the thermal sensation of the user based on the difference.
- the reception power of the stimulus output signal is also a plurality of waveforms extracted in the past certain period. Based on the average value of the component ratio cZa and the waveform component ratio immediately after receiving the stimulus output signal, the differential value A cZa or the difference of the wave formation ratio is calculated, and the user's thermal sensation is estimated based on the result. May be.
- the reception power of the stimulus output signal is also the average value of the difference between the waveform component ratios preceding and following in time series and the waveform component immediately after receiving the stimulus output signal. Based on the ratio! /, Calculate the differential value ⁇ c Za or the difference of the waveform component ratio, and use the result to estimate the thermal sensation of the user! /.
- the stimulus output unit 305 outputs a stimulus output signal indicating that the stimulus has been output to the parameter variation determination unit 303, and the parameter variation determination unit 303 immediately before receiving the stimulus output signal.
- the parameter variation determination unit 303 includes a time measuring unit for measuring time
- the stimulation output unit 305 Without outputting the stimulus output signal, the differential value may be calculated based on the waveform component ratio immediately before and immediately after a certain time elapses or immediately before and after the time for applying the stimulus included in the stimulus content elapses. .
- the rate of change of the waveform component ratio during a predetermined time may be a differential value.
- the time measuring unit for measuring time is made independent of the parameter variation determining unit 303, and the time measuring unit and the parameter variation determining unit 303 are configured to be able to communicate with each other. May be adopted in which the parameter fluctuation determination unit 303 is transmitted.
- the estimation result of the user's thermal sensation may be displayed on a display unit such as a monitor and presented to the user.
- the environment control system according to Embodiment 10 has the same configuration as the environment control system according to Embodiment 6, and will be described with reference to FIG. Note that the description of the tenth embodiment that is the same as the sixth embodiment is omitted, and only the differences are described.
- the parameter extraction unit 302 extracts the acceleration pulse wave component ratio obtained by second-order differentiation of the pulse wave waveform obtained from the pulse wave data and the maximum acceleration pulse wave height as parameters for evaluating the pulse wave. accumulate.
- the acceleration pulse wave waveform is the same as that in the sixth embodiment and is as shown in FIG. Also in this embodiment, the baseline force of acceleration pulse wave waveform up to apex A Extract c and a as the wave component ratio, with distance a as the denominator and distance c from the base line to vertex C as the numerator.
- the parameter extraction unit 302 extracts the distance a to the apex A as the maximum value of the acceleration pulse wave height as the baseline force of the acceleration pulse wave waveform.
- the parameter fluctuation determination unit 303 calculates the fluctuation of the waveform component ratio extracted by the parameter extraction unit 302 and the fluctuation of the maximum acceleration pulse wave height, estimates the user's thermal sensation from the calculation result, and calculates the estimation result from the estimation result.
- the stimulus content is determined, and a stimulus output command is output to the stimulus control unit 304 so that the stimulus according to the determined stimulus content is output from the stimulus output unit 305.
- the parameter variation determination unit 303 has a waveform component ratio and a maximum velocity pulse wave height extracted immediately after receiving a stimulus output signal output when the stimulus output unit 305 outputs a stimulus.
- Component calculated by dividing the difference between the value and the ratio of the waveform component extracted immediately before receiving the stimulus output signal and the maximum value of the acceleration pulse wave height by the predetermined sampling period for sampling the fingertip pulse wave. The thermal sensation of the user is estimated based on the differential value of the ratio and the differential value of the maximum acceleration pulse wave height.
- FIG. 34 is a flowchart showing the process of the environment control system in the tenth embodiment of the present invention.
- the biological information collection unit 301 collects and accumulates time series data of pulse waves (step S161).
- the parameter extraction unit 302 extracts and accumulates the waveform component ratio cZa and the acceleration pulse wave height maximum value h from the pulse wave time-series data collected by the biological information collection unit 301 at regular intervals (step S162). .
- the parameter variation determination unit 303 determines whether or not the force has received the stimulus output signal from the stimulus output unit 305 (step S163). If no stimulus output signal is received from the stimulus output unit 305 (NO in step S163), the process returns to step SI62.
- the parameter variation determination unit 303 receives the stimulus output signal from the stimulus output unit 305 (YES in step S163), the parameter component ratio extracted by the parameter extraction unit 302 immediately after receiving the stimulus output signal is determined.
- the differential value ⁇ cZa of the waveform component ratio is obtained based on cZa and the waveform component ratio cZa extracted by the parameter extraction unit 302 immediately before receiving the stimulus output signal, and the parameter extraction unit immediately after receiving the stimulus output signal.
- the parameter extraction unit 302 immediately before receiving the acceleration pulse wave height maximum value h extracted by 302 and the stimulus output signal.
- the differential value A h of the maximum acceleration pulse wave height is obtained on the basis of the maximum acceleration pulse wave height h extracted by the above.
- the meter fluctuation determining unit 303 estimates the thermal sensation of the user based on the differential values, determines the stimulus content from the estimation result, and the stimulus based on the determined stimulus content is output from the stimulus output unit 305. In this manner, a stimulus output command is output to the stimulus control unit 304 (step S164). Next, the stimulus control unit 304 causes the stimulus output unit 305 to output a stimulus according to the stimulus output command output from the parameter fluctuation determination unit 303 (step S165).
- FIG. 35 is a flowchart showing processing of the parameter variation determination unit 303 in Embodiment 10 of the present invention.
- the parameter variation determination unit 303 determines whether or not a stimulus output signal has been received from the stimulus output unit 305 (step S171).
- the process of step S171 is repeatedly executed at a predetermined timing until the stimulus output signal is received.
- the parameter variation determination unit 303 receives the stimulation output signal from the stimulation output unit 305 (YES in step S171), the parameter variation determination unit 303 immediately before receiving the stimulation output signal out of the waveform component ratio cZa extracted by the parameter extraction unit 302.
- the differential value ⁇ cZa of the waveform component ratio is calculated on the basis of the waveform component ratio cZa and the immediately following waveform component ratio cZa, and the stimulus output signal out of the maximum acceleration pulse wave height h extracted by the parameter extraction unit 302 On the basis of the maximum acceleration pulse wave height h immediately before receiving the maximum acceleration pulse wave height h and the differential value ⁇ h of the maximum acceleration pulse wave height h is calculated (step S172).
- FIG. 36 is a graph showing the correlation between the maximum value of the acceleration pulse wave height and the user's thermal sensation found by the present inventors through experiments with subjects.
- the horizontal axis represents the user's thermal sensation
- the vertical axis represents the maximum acceleration pulse wave height.
- the maximum value of the acceleration pulse wave height increases monotonically as the user's thermal sensation increases! Therefore, if the maximum value of the acceleration pulse wave height is known, the user's thermal sensation can be improved. Can be estimated. [0274] Therefore, in the environmental control system according to the present embodiment, the thermal sensation of the user is based on the change in the waveform component ratio shown in FIG. 33 and the change in the maximum value of the acceleration pulse wave height shown in FIG. Estimated.
- step S173 shown in FIG. 35 the parameter variation determining unit 303 determines whether or not the differential value Ac cza of the waveform component ratio is negative. If the differential value A cZa is negative (YES in step S173), the parameter variation determination unit 303 further determines whether the differential value ⁇ h force ⁇ of the acceleration pulse wave peak maximum value is greater than or equal to (step S174). ). If the differential value ⁇ h is greater than or equal to 0 (YES in step S174), the parameter variation determination unit 303 indicates that the user's thermal sensation has changed to a cold state force that is neither hot nor cold. It is estimated that the thermal sensation has improved (step S175). Next, the parameter variation determination unit 303 outputs a stimulus output command that maintains the thermal sensation (step S 176).
- the parameter fluctuation determination unit 303 indicates that the user's thermal sensation is in the direction of a neutral state in which the hot state force is neither hot nor cold. It is estimated that the thermal sensation has improved (step S177).
- the meter change determination unit 303 outputs a stimulus output command that maintains thermal sensation (step S176).
- the parameter fluctuation determination unit 303 determines whether the differential value ⁇ h of the acceleration pulse wave peak maximum value is 0 or more. (Step S178). If the differential value A h is greater than or equal to 0 (YES in step S 178), the parameter fluctuation determination unit 303 indicates that the user's thermal sensation is neither hot nor cold, but the neutral state force is also changed to the hot state. That is, it is estimated that the thermal sensation has deteriorated (step S179). Next, the parameter fluctuation determination unit 303 outputs a stimulus output command that improves the thermal sensation such as performing a cold stimulation or reducing the intensity of the thermal stimulation (step S 180).
- the parameter fluctuation determination unit 303 indicates that the user's thermal sensation is neither hot nor cold, and the neutral state force is also cold. It is estimated that the thermal sensation has deteriorated (step S181).
- the parameter variation determination unit 303 outputs a stimulus output command that improves the thermal sensation such as performing thermal stimulation or decreasing the intensity of the cold stimulation (step S180).
- the environmental control system based on the differential value ⁇ cZa of the waveform component ratio of the acceleration pulse wave and the differential value ⁇ h of the maximum value of the acceleration pulse wave height, Since the user's thermal sensation is estimated, the user's thermal sensation can be estimated more accurately.
- step S173 immediately before the parameter fluctuation determination unit 303 determines whether the differential value ⁇ cZa of the waveform component ratio is negative, the differential value A of the waveform component ratio A It is determined whether or not cZa is within a certain predetermined range (for example, 0.01 to 0.01), and if it is within the certain range, the user's thermal sensation changes almost to V, However, it may be determined that a stimulus output command for continuing or stopping the current stimulus output content may be output.
- step S 174 or step S 178 the parameter fluctuation determination unit 303 immediately before determining whether the differential value ⁇ h of the acceleration pulse wave height maximum value is 0 or more, the derivative of the acceleration pulse wave peak maximum value is determined.
- the stimulus content determined by the parameter variation determining unit 303 includes the cool / heat stimulus such as cooling / heating, the cool air / air flow stimulus such as warm air, the intensity of the stimulus, and the stimulus. Time to give.
- the parameter variation determination unit 303 determines the differential value based on the immediately following waveform component ratio cZa and the immediately preceding waveform component ratio cZa when the stimulus is output from the stimulus output unit 305.
- a cZa is calculated, and a fractional value ⁇ h is calculated based on the maximum acceleration pulse wave height h immediately after the stimulation is output from the stimulation output unit 305 and the maximum acceleration pulse wave height h immediately before.
- the user's thermal sensation is estimated using these differential values ( ⁇ c / a, ⁇ h), but is not limited to this, and the difference between the immediately preceding waveform component ratio cZa and the immediately following waveform component ratio cZa
- the difference between the immediately preceding acceleration pulse wave height maximum value h and the immediately following acceleration pulse wave height maximum value h may be calculated, and the user's thermal sensation may be estimated based on these differences.
- the stimulus output signal calculates the average value of the multiple waveform component ratios cZa extracted in the past fixed period, and differentiates the waveform component ratio based on this average value and the waveform component ratio cZa immediately after receiving the stimulus output signal.
- the value AcZa or the difference may be calculated.
- the reception power of the stimulus output signal is also the average value of the difference between the waveform component ratios that move back and forth in time series and the waveform component immediately after receiving the stimulus output signal. Calculate the differential value AcZa or difference of the waveform component ratio based on the ratio and use the result to estimate the thermal sensation of the user! /.
- the average value of the multiple acceleration pulse wave height values h extracted during the past certain period of time when receiving the stimulus output signal and the differential value Ah or the difference of the acceleration pulse wave height maximum value may be calculated based on the average value and the acceleration pulse wave height maximum value h immediately after receiving the stimulus output signal.
- the force at the time of reception of the stimulus output signal is also obtained by calculating the average difference between the maximum value of the acceleration pulse wave height and the stimulus output signal before and after the acceleration pulse wave height maximum value extracted in the past certain period.
- the differential value ⁇ h or difference of the maximum acceleration pulse wave height value may be calculated based on the maximum acceleration pulse wave height value immediately after reception, and the user's thermal sensation may be estimated using the result.
- FIG. 37 is a graph showing the correlation between the maximum pulse wave height and the user's thermal sensation found by the present inventors through experiments with subjects. As shown in FIG. 37, it can be seen that the maximum pulse wave height increases monotonically as the user's thermal sensation increases. Therefore, the user's thermal sensation can be estimated even if the pulse wave height maximum value is used instead of the acceleration pulse wave height maximum value.
- the stimulus output unit 305 outputs a stimulus output signal indicating that a stimulus has been output to the parameter variation determining unit 303, and the parameter variation determining unit 303 immediately before receiving the stimulus output signal.
- the differential value is calculated on the basis of the waveform component ratio and the acceleration pulse wave height maximum value immediately after that, but the present invention is not particularly limited to this, and the parameter fluctuation determination unit 303 is provided with a time measuring unit for measuring time.
- the stimulation output unit 305 does not output a stimulation output signal, and immediately before and after a certain period of time or immediately after the puncture included in the stimulation content.
- the differential value may be calculated based on the waveform component ratio of the acceleration pulse wave and the maximum value of the acceleration pulse wave height immediately before and immediately after the time for applying the intensity.
- the change rate of the waveform component ratio and the acceleration pulse wave height maximum value at a predetermined time may be set as a differential value.
- the time measuring unit for measuring time is made independent of the parameter variation determining unit 303, and the time measuring unit and the parameter variation determining unit 303 are connected to each other so that they can communicate with each other. You may make it transmit to the fluctuation
- FIG. In the present embodiment, the estimation result of the user's thermal sensation may be displayed on a display unit such as a monitor and presented to the user.
- the environmental control system according to the eleventh embodiment has the same configuration as the environmental control system according to the sixth embodiment, so the configuration will be described with reference to FIG.
- the description of the same elements as in the sixth embodiment is omitted, and only the differences will be described.
- the parameter extraction unit 302 extracts and accumulates the waveform component ratio of the acceleration pulse wave obtained by second-order differentiation of the pulse wave waveform obtained from the pulse wave data as a parameter for evaluating the pulse wave.
- the acceleration pulse waveform is the same as in the sixth embodiment. Also in the present embodiment, cZa having the distance a from the base line of the acceleration pulse waveform to the vertex A as the denominator and the distance c from the base line to the vertex C as a molecule is extracted as the waveform component ratio.
- the parameter fluctuation determination unit 303 stores the determined stimulus content in the internal memory, calculates the fluctuation of the waveform component ratio extracted by the parameter extraction unit 302, and stores the result of the calculation.
- the user's thermal sensation is estimated on the basis of the stimulus content being performed, and the stimulus content is determined from the estimation result.
- the meter fluctuation determining unit 303 updates the stimulus content stored in the internal memory, and controls the stimulus output command so that the stimulus according to the determined stimulus content is output from the stimulus output unit 305. Output to part 304.
- the parameter fluctuation determination unit 303 holds the content of the stimulus given to the user for a certain period in the past.
- the stimulus content stored in the memory includes the type of stimulus such as cooling and heating, and the intensity of the stimulus output by the cooling and heating.
- the parameter variation determination unit 303 outputs the stimulus from the stimulus output unit 305.
- Waveform component calculated by dividing the difference between the waveform component ratio extracted immediately after receiving the stimulus output signal to be output and the waveform component ratio extracted immediately before receiving the stimulus output signal by the sampling period. Based on the differential value of the ratio and the content of the stimulus held in the internal memory when the stimulus output signal output when the stimulus output unit 305 outputs the stimulus is received, the user's thermal sensation Is estimated.
- FIG. 38 is a flowchart showing processing of the environment control system in Embodiment 11 of the present invention.
- the biological information collection unit 301 collects and accumulates time series data of pulse waves (step S191).
- the parameter extraction unit 302 extracts and accumulates the waveform component ratio cZa from the pulse wave time-series data collected by the biological information collection unit 301 at regular intervals (step S 192).
- the parameter variation determination unit 303 determines whether or not the force has received the stimulus output signal from the stimulus output unit 305 (step S193). If no stimulus output signal is received from the stimulus output unit 305 (NO in step S193), the process returns to step SI92.
- the parameter variation determination unit 303 receives the stimulus output signal from the stimulus output unit 305 (YES in step S193), the parameter component ratio extracted by the parameter extraction unit 302 immediately after receiving the stimulus output signal is determined.
- the differential value ⁇ cZa of the waveform component ratio is obtained based on the waveform component ratio cZa extracted by the parameter extraction unit 302 immediately before receiving cZa and the stimulus output signal.
- the parameter variation determination unit 303 estimates the user's thermal sensation based on the differential value and the stimulus content stored in the memory, and determines the stimulus content from the estimation result.
- the parameter fluctuation determination unit 303 updates the stimulus content stored in the internal memory, and sends a stimulus output command to the stimulus control unit 304 so that the stimulus based on the determined stimulus content is output from the stimulus output unit 305. Output (step S194).
- the stimulus control unit 304 causes the stimulus output unit 305 to output a stimulus according to the stimulus output command output from the parameter variation determination unit 303 (step S195).
- FIG. 39 and FIG. 40 are flowcharts showing processing of the parameter variation determination unit 303 in Embodiment 11 of the present invention.
- the parameter variation determination unit 303 receives a stimulus output signal from the stimulus output unit 305.
- Step S201 when the stimulus output signal is not received from the stimulus output unit 305 (NO in step S201), the process of step S201 is repeatedly executed at a predetermined timing until the stimulus output signal is received.
- the parameter variation determination unit 303 receives the stimulation output signal from the stimulation output unit 305 (YES in step S201)
- the parameter variation determination unit 303 immediately before receiving the stimulation output signal out of the waveform component ratio cZa extracted by the parameter extraction unit 302.
- the waveform component ratio differential value ⁇ c / a is calculated from the waveform component ratio cZa and the immediately following waveform component ratio cZa, and the stimulation content stored in the internal memory is referred to (step S202).
- the noramometer fluctuation determining unit 303 determines whether or not the differential value AcZa of the waveform component ratio is negative (step S203). If the differential value A cZa is negative (YES in step S 203), the parameter variation determination unit 303 determines whether the stimulus content referred to in step S 202 is a stimulus that improves cooling feeling (step S 202 S 204). Here, the stimulus whose stimulus content improves the cool feeling corresponds to, for example, cooling. The parameter variation determination unit 303 reads the stimulus content accumulated in the past certain period from the memory, and determines whether or not the stimulus content is a stimulus that improves the cool sensation.
- the parameter variation determination unit 303 determines the intensity of the stimulus (step S205).
- the parameter variation determination unit 303 increases the strength of the latest stimulus out of the strength of the stimulus indicated by the stimulus content stored in the memory for a certain period in the past and the strength of the previous stimulus.
- the parameter variation determination unit 303 determines that the user's thermal sensation is a hot state force and is not hot or cold. The change, that is, the thermal sensation, is estimated to have improved (step S206).
- the parameter variation determination unit 303 outputs a stimulus output command that maintains the thermal sensation (step S207).
- the parameter variation determination unit 303 indicates that the user's thermal sensation is neutral so that the cold state power is neither hot nor cold. It is estimated that the state has changed, that is, the thermal sensation has improved (step S208). Note that the meter fluctuation determination unit 303 indicates the content of the stimulus accumulated in the memory for a certain period in the past. When the intensity of the most recent stimulus is decreasing with respect to the intensity of the most recent stimulus, it is determined that the intensity of the stimulus has decreased. Next, the meter fluctuation determining unit 303 outputs a stimulus output command that maintains the thermal sensation (step S207).
- the parameter variation determination unit 303 Further determines the intensity of the stimulus (step S209).
- the heating content corresponds to the stimulation content that improves the warm feeling.
- the parameter variation determination unit 303 determines that the stimulus content to be output is a stimulus that increases the intensity of the warm feeling (YES in step S209), the user's thermal feeling may be from a cold state to a hot one. It is presumed that the temperature has changed toward a neutral state that is not cold, that is, the thermal sensation has improved (step S210). Next, the parameter variation determination unit 303 outputs a stimulus output command that maintains the thermal sensation (step S207).
- the parameter fluctuation determination unit 303 determines that, for example, the latest stimulus intensity is greater than the stimulus intensity indicated by the stimulus contents stored in the memory for a certain period in the past. When increasing, it is determined that the intensity of the stimulus has increased. If the stimulus is a stimulus that reduces the intensity of the warm feeling (NO in step S209), the parameter change determining unit 303 determines that the user's thermal feeling is a hot state force and a neutral state that is neither hot nor cold. It is presumed that it has changed, that is, the thermal sensation has improved (step S211). Next, the parameter variation determination unit 303 outputs a stimulus output command that maintains the thermal sensation (step S207).
- the parameter variation determination unit 303 determines whether or not the stimulus content is a stimulus that improves the cooling sensation. (Step S212). If the parameter variation determination unit 303 determines that the stimulus content is a stimulus that improves the cool feeling (YES in step S212), it further determines the intensity of the stimulus (step S213).
- the parameter variation determination unit 303 determines that the stimulus is a stimulus that increases the intensity of the stimulus (YES in step S213), the user's thermal feeling is neither hot nor cold, and the neutral state force is also cold. It is estimated that the temperature has changed in the direction of, that is, the thermal sensation has deteriorated (step S214).
- the parameter variation determination unit 303 performs, for example, warm stimulation or cold stimulation. Output a stimulus output command that improves the thermal sensation such as decreasing the intensity (Step
- the parameter variation determination unit 303 moves the user in a direction where the thermal feeling is neither hot nor cold, nor is the neutral state force hot. It is estimated that the thermal sensation has deteriorated (step S216).
- the meter fluctuation determining unit 303 outputs a stimulus output command for improving the thermal sensation such as increasing the intensity of the cold stimulus (step S215).
- the parameter variation determination unit 303 determines the stimulus. The strength is determined (step S217). If the parameter variation determination unit 303 determines that the stimulus intensity has increased (YES in step S217), the user's thermal sensation is neither hot nor cold, but the neutral state force also changes toward the hot state. That is, it is estimated that the thermal sensation deteriorated (step S218). Next, the parameter variation determination unit 303 outputs a stimulus output command for improving the thermal sensation such as performing a cold stimulus or reducing the intensity of the warm stimulus (step S215).
- parameter fluctuation determination section 303 determines that the intensity of the stimulus has decreased (NO in step S217), the user's thermal sensation is neither hot nor cold, but the neutral state force is also in the cold state direction It is presumed that the sense of thermal sensation has deteriorated (step S219).
- the parameter fluctuation determining unit 303 outputs a stimulus output command that improves the thermal sensation such as increasing the intensity of the thermal stimulus (step S215).
- the user's thermal sensation is estimated based on the differential value ⁇ cZa of the waveform component ratio of the acceleration pulse wave and the stimulus content. Therefore, the thermal sensation can be estimated with higher accuracy.
- step S203 immediately before the parameter variation determination unit 303 determines whether the differential value ⁇ cZa of the waveform component ratio is negative, the differential value A of the waveform component ratio A It is judged whether or not the force is within a specific range (for example, 0.01 to 0.01), and if the cZa is within the specific range, the thermal sensation of the user has hardly changed. Stimulus output to judge and continue or cancel current stimulus output content Even if it outputs a command.
- a specific range for example, 0.01 to 0.01
- the parameter variation determination unit 303 estimates the user's thermal sensation from the type of stimulus and the intensity of the stimulus. Estimate the user's thermal sensation by changing only the type of stimulus, such as a change or change from a cold stimulus to a warm stimulus. And estimate the user's thermal sensation.
- the parameter variation determination unit 303 determines V based on the waveform component ratio cZa immediately after the stimulus is output from the stimulus output unit 305 and the waveform component ratio cZa immediately before.
- the differential value ⁇ c / a is calculated, and the thermal sensation of the user is estimated using this differential value ⁇ c / a.
- the present invention is not limited to this, and the immediately preceding waveform component ratio cZa and the immediately following waveform component ratio are calculated. You can calculate the difference with cZa and estimate the thermal sensation of the user based on the difference.
- the parameter variation determination unit 303 is based on the average value of the plurality of waveform component ratios cZa extracted in the past certain period from the time of reception of the stimulus output signal and the waveform component ratio immediately after reception!
- the differential value ⁇ cZa or the difference of the waveform component ratio may be calculated, and the thermal sensation of the user may be estimated based on the result.
- the parameter variation determination unit 303 receives the average value of the difference between the waveform component ratios that are temporally sequential and the stimulus output signal among the plurality of waveform component ratios extracted in the past fixed period when the stimulation output signal is received.
- the differential value ⁇ cZa or difference of the waveform component ratio may be calculated based on the wave forming ratio immediately after reception, and the user's thermal sensation may be estimated using the result.
- the stimulus output unit 305 outputs a stimulus output signal indicating that a stimulus has been output to the parameter variation determining unit 303, and the parameter variation determining unit 303 immediately before receiving the stimulus output signal.
- the stimulus output signal is output when the stimulus output unit 305 outputs a stimulus
- the stimulus content stored in the internal memory is referred to.
- the parameter variation determination unit 303 includes a time measuring unit that measures time, and the stimulation output unit 305 does not output a stimulation output signal, immediately before and after a certain period of time, Alternatively, the differential value of the waveform component specific power immediately before and immediately after the time for applying the stimulus included in the stimulus content may be calculated, and the stimulus content may be referred to.
- the rate of change of the waveform component ratio during a given time It may be a minute value.
- the time measuring unit for measuring time is made independent from the parameter variation determining unit 303, and the time measuring unit and the parameter variation determining unit 303 are connected to each other so that they can communicate with each other. It may be transmitted to the parameter fluctuation determination unit 303.
- the estimation result of the user's thermal sensation may be displayed on a display unit such as a monitor and presented to the user.
- FIG. 41 is a diagram showing a configuration of the environment control system in the twelfth embodiment of the present invention.
- the present embodiment is further configured to include a temperature measurement unit (temperature measurement means) 503.
- the temperature measurement unit 308 measures the temperature at the location where the user is located, and transmits the measurement result (temperature data) to the parameter variation determination unit 303. Further, the temperature measurement unit 308 measures the temperature at regular intervals, and always measures the temperature immediately after receiving the stimulus output signal output when the stimulus output unit 303 outputs the stimulus.
- the parameter extraction unit 302 extracts and accumulates the waveform component ratio of the acceleration pulse wave obtained by second-order differentiation of the pulse wave waveform obtained from the pulse wave data as a parameter for evaluating the pulse wave.
- the acceleration pulse wave waveform is the same as that in the sixth embodiment, and is as shown in FIG. Also in the present embodiment, cZa having the distance a to the baseline force vertex A of the acceleration pulse wave waveform as the denominator and the distance c to the baseline force vertex C as the numerator is extracted as the waveform component ratio.
- Parameter fluctuation determination section 303 calculates the fluctuation of the waveform component ratio extracted by parameter extraction section 302, and estimates the user's thermal sensation based on the calculation result and the temperature data from temperature measurement section 308. Then, the stimulation content is determined from the estimation result, and a stimulation output command is output to the stimulation control unit 304 so that the stimulation based on the determined stimulation content is output from the stimulation output unit 305.
- the parameter variation determination unit 303 holds temperature data for a certain period received from the temperature measurement unit 308 in the past.
- the parameter variation determination unit 303 receives the waveform component ratio extracted immediately after receiving the stimulus output signal output when the stimulus output unit 305 outputs the stimulus, and the stimulus output signal.
- the difference from the waveform component ratio extracted immediately before To calculate the differential value of the waveform component ratio and the temperature data received from the temperature measurement unit 308 immediately after receiving the stimulus output signal output when the stimulus output unit 305 outputs the stimulus and the stimulus output
- the difference from the temperature data received from the temperature measurement unit 308 immediately before receiving the signal is divided by the measurement time interval to calculate the differential value of the differential value of the temperature data, and the user's thermal sensation is obtained using both differential values.
- FIG. 42 is a flowchart showing a process of the environment control system in the twelfth embodiment of the present invention.
- the biological information collection unit 301 collects and accumulates time series data of pulse waves (step S221).
- the parameter extraction unit 302 extracts and accumulates the waveform component ratio cZa from the pulse wave time-series data collected by the biological information collection unit 301 at regular intervals (step S 222).
- the parameter extraction unit 302 accumulates the temperature data t received from the temperature measurement unit 308 (step S223).
- the parameter variation determination unit 303 determines whether or not the force has received the stimulus output signal from the stimulus output unit 305 (step S224). If no stimulation output signal is received from the stimulation output unit 305 (NO in step S224), the process returns to step S222.
- the parameter fluctuation determination unit 303 receives the stimulus output signal from the stimulus output unit 305 (YES in step S224), the parameter component ratio extracted by the parameter extraction unit 302 immediately after receiving the stimulus output signal
- the differential value ⁇ cZa of the waveform component ratio is obtained based on the waveform component ratio cZa extracted by the parameter extraction unit 302 immediately before receiving cZa and the stimulus output signal, and the temperature immediately after receiving the stimulus output signal.
- a differential value At of the temperature data is obtained.
- the parameter fluctuation determination unit 303 estimates the user's thermal sensation based on both differential values ( ⁇ c / a, ⁇ t), determines the stimulus content from the estimation result, and determines the determined stimulus content.
- a stimulus output command is output to the stimulus control unit 304 such that a stimulus corresponding to is output from the stimulus output unit 305 (step S225).
- the stimulus control unit 304 causes the stimulus output unit 305 to output a stimulus according to the stimulus output command output from the parameter variation determination unit 303 (step S226).
- FIG. 43 is a flowchart showing processing of the parameter variation determination unit 303 in Embodiment 12 of the present invention.
- the parameter variation determination unit 303 determines whether or not a stimulus output signal has been received from the stimulus output unit 305 (step S231).
- the process of step S231 is repeatedly executed at a predetermined timing until the stimulus output signal is received.
- the parameter variation determination unit 303 receives the stimulation output signal from the stimulation output unit 305 (YES in step S231), the parameter variation determination unit 303 immediately before receiving the stimulation output signal out of the waveform component ratio cZa extracted by the parameter extraction unit 302.
- the differential value ⁇ cZa is calculated based on the waveform component ratio cZa and the immediately following waveform component ratio cZa, and the temperature data t received from the temperature measurement unit 308 is immediately before the stimulus output signal is received.
- a differential value A t is calculated based on the temperature data t and the immediately following temperature data t (step S232).
- the meter fluctuation determining unit 303 determines whether or not the differential value AcZa of the waveform component ratio is negative (step S233). If the differential value A cZa is negative (YES in step S 233), the parameter variation determination unit 303 further determines whether or not the differential value At of the temperature data is positive (step S 234). If the parameter variation determination unit 303 determines that the differential value ⁇ t is positive (YES in step S234), the user's thermal sensation is cold and the state power is neither hot nor cold. It is estimated that the thermal sensation has improved (step S235). Next, the parameter variation determination unit 303 outputs a stimulus output command that maintains the thermal sensation (step S236).
- the parameter variation determination unit 303 determines that the user's thermal sensation is a hot state force and is not hot or cold. It is presumed that the temperature has changed, that is, the thermal sensation has improved (step S237). Next, the meter change determination unit 303 outputs a stimulus output command that maintains thermal sensation (step S236).
- the parameter variation determination unit 303 further determines whether the differential value ⁇ t of the temperature data is positive (step S23 8 ). Then, the parameter variation determination unit 303 determines that the differential value (A t) is positive ( (YES in step S238), it is estimated that the user's thermal sensation has changed in the direction of a neutral state force that is neither hot nor cold, that is, the thermal sensation has deteriorated (step S239). Next, the meter fluctuation determining unit 303 outputs a stimulus output command that improves the thermal sensation such as performing a cold stimulus (step S240).
- the parameter variation determination unit 303 changes the user's thermal sensation into a neutral state force that is neither hot nor cold. That is, it is estimated that the thermal sensation has deteriorated (step S241).
- the parameter variation determination unit 303 outputs a stimulus output command that improves the thermal sensation such as performing a thermal stimulus (step S 240).
- the differential value ⁇ cZa of the waveform component ratio of the acceleration pulse wave and the differential value ( ⁇ t) of the temperature at the location where the user is located are used. Therefore, the user's thermal sensation can be accurately estimated.
- step S233 immediately before the parameter fluctuation determination unit 303 determines whether the differential value ⁇ cZa of the waveform component ratio is negative, the differential value A of the waveform component ratio A It is determined whether or not cZa is within a certain predetermined range (for example, 0.01 to 0.01), and if it is within the certain range, the user's thermal sensation changes almost to V, However, it may be determined that a stimulus output command for continuing or stopping the current stimulus output content may be output.
- step S234 or step S2308 the temperature data differential value At is determined in a certain predetermined range immediately before the parameter change determination unit 303 determines whether the temperature data differential value At is positive. (For example, from 0.3 to 0.3), if it is within a specific range, the temperature data will change to V, N, and the current stimulus output content will continue or You may make it output the stimulus output command which stops.
- the stimulation content determined by the parameter variation determination unit 303 includes thermal and thermal stimulation such as cooling and heating, airflow stimulation such as cold and warm air, intensity of stimulation, and stimulation. Time to give.
- the parameter variation determination unit 303 is connected to the stimulus output unit 305.
- the differential value A cZa is calculated based on the waveform component ratio cZa immediately after the stimulus is output and the immediately preceding waveform component ratio cZa, and the temperature data immediately after the stimulus is output from the stimulus output unit 305.
- the parameter variation determination unit 303 calculates the average value of the plurality of waveform component ratios cZa extracted in the past certain period from the time of receiving the stimulus output signal and the waveform component ratio immediately after receiving the stimulus output signal. Based on the above, the differential value ⁇ cZa or the difference of the waveform component ratio may be calculated, and the thermal sensation of the user may be estimated based on the result. In addition, the parameter variation determination unit 303 uses the average value of the difference between the waveform component ratios that are before and after the time series out of the plurality of waveform component ratios extracted in the past predetermined period when the stimulation output signal is received. Thermal sensation may be estimated.
- the parameter variation determination unit 303 calculates the average value of the plurality of temperature data t extracted in the past certain period from the time of receiving the stimulus output signal and the temperature data t immediately after receiving the stimulus output signal.
- the differential value At or difference of the temperature data may be calculated based on the above, and the thermal sensation of the user may be estimated based on the result.
- the parameter fluctuation determination unit 303 receives the average value of the difference between the temperature data preceding and following in time series and the stimulus output signal among the plurality of temperature data extracted in the past time period when the stimulus output signal is received. Calculate the differential value At or difference of the temperature data based on the waveform component ratio immediately after the calculation, and use the result to estimate the thermal sensation of the user! /.
- the stimulus output unit 305 outputs a stimulus output signal indicating that a stimulus has been output to the parameter variation determination unit 303, and the parameter variation determination unit 303 immediately before receiving the stimulus output signal.
- the present invention is not particularly limited to this, and the parameter variation determination unit 303 is provided with a time measuring unit for measuring time, and the stimulus output is calculated.
- the part 305 does not output the stimulus output signal, and gives the stimulus included in the stimulus content immediately before and after a certain time has passed.
- the differential value of the waveform component ratio and the differential value of the temperature data immediately before and after the elapse of time may be calculated.
- the waveform component ratio and the change rate of the temperature data in a predetermined time may be used as the differential values.
- the time measuring unit for measuring time is made independent of the parameter variation determining unit 303, and the time measuring unit and the parameter variation determining unit 303 are connected to each other so that they can communicate with each other. You may make it transmit to the parameter fluctuation
- the temperature measurement unit 308 always measures the temperature immediately after receiving the stimulus output signal output when the stimulus output unit 305 outputs the stimulus. Not limited to this, the temperature measurement unit 308 does not receive a stimulus output signal output when the stimulus output unit 305 outputs a stimulus, and measures a temperature based on a request from the parameter variation determination unit 303. The method is fine.
- the temperature data is assumed to be accumulated in the parameter variation determination unit 303.
- the temperature measurement unit 308 accumulates the temperature data and transmits the temperature data based on a request from the parameter variation determination unit 303. Even a simple method is good.
- a method of accumulating temperature data in the temperature measurement unit 308, calculating a differential value based on a request from the parameter variation determination unit 303, and transmitting the calculation result to the parameter variation determination unit 303 does not work.
- the temperature may be measured or the differential value may be calculated when a message indicating the passage of a certain time is received from a time measuring unit that measures a time different from the temperature measuring unit 308.
- the estimation result of the user's thermal sensation may be displayed on a display unit such as a monitor and presented to the user.
- FIG. 44 is a block diagram showing a configuration of the environmental control apparatus according to Embodiment 13 of the present invention.
- the environment control device 406 includes a pulse wave measurement unit 401, a pulse wave parameter calculation unit 402, a pulse wave parameter change calculation unit 403, a thermal sensation change estimation unit 404, and a device control determination unit 405.
- Pulse wave measurement unit 401 measures the user's pulse wave.
- the pulse wave parameter calculation unit 402 calculates a pulse wave parameter representing the characteristics of the pulse wave data force pulse wave waveform measured by the pulse wave measurement unit 401.
- the pulse wave parameter change calculating unit 403 is a pulse wave parameter calculated by the pulse wave parameter calculating unit 402.
- the time change of the value of the wave parameter is calculated.
- the thermal sensation change estimation unit 404 estimates a change in the user's thermal sensation based on the change in the pulse wave parameter calculated by the pulse wave parameter change calculation unit 403.
- the device control determination unit 405 determines the control content of the thermal cooling / heating device 407 based on the estimation result of the change in thermal sensation of the user estimated by the thermal sensation change estimation unit 404.
- the heating / cooling device 407 is, for example, an air conditioner, a floor heating system, an electric carpet, a car air conditioner, a seat heater, and the like, and outputs a heating / cooling stimulus to the user.
- the pulse wave measurement unit 401 When the central processing unit (CPU) of the computer in which the environment control program power according to the present invention is installed executes the program, the pulse wave measurement unit 401, the pulse wave parameter calculation unit 402, the pulse wave It functions as a parameter change calculation unit 403, a thermal sensation change estimation unit 404, and a device control determination unit 405.
- the CPU central processing unit
- the pulse wave parameter calculation unit 402 When the central processing unit (CPU) of the computer in which the environment control program power according to the present invention is installed executes the program, the pulse wave measurement unit 401, the pulse wave parameter calculation unit 402, the pulse wave It functions as a parameter change calculation unit 403, a thermal sensation change estimation unit 404, and a device control determination unit 405.
- FIG. 45 is a flowchart showing the flow of environmental control processing by the environmental control device shown in FIG. 44.
- the pulse wave measurement unit 401 measures a pulse wave and acquires time-series data of the pulse wave (step S251). For example, the pulse wave measurement unit 401 irradiates the skin surface of the user's finger or earlobe with near-infrared light using a light emitting element, receives transmitted light or reflected light with a light receiving element, and changes the received light into an electrical signal. By converting, changes in blood flow are detected, and time-series data of pulse waves is acquired.
- the pulse wave parameter calculation unit 402 calculates the pulse wave according to the acceleration pulse wave waveform parameter obtained by second-order differentiation of the time series data of the pulse wave measured by the pulse wave measurement unit 401 or the Takens embedding theorem. Calculates the white plot ratio (hereinafter referred to as RP-dw), which is a numerical value of the white ratio in the recurrence plot that visualizes the unsteadiness of attractors obtained by embedding the time series data in the delay time coordinate system. (Step S252).
- These acceleration pulse wave parameters or RP-dw are pulse wave parameters.
- the pulse wave parameter change calculation unit 403 uses the acceleration pulse wave waveform parameter or RP-dw value calculated by the pulse wave parameter calculation unit 402, and the acceleration pulse wave a predetermined time before the preset time.
- the waveform parameter or RP—dw value is subtracted to calculate the time change of the pulse wave parameter value at a predetermined time (step S253).
- the thermal sensation change estimation unit 404 estimates the change in thermal sensation of the user based on the temporal change in the value of the pulse wave parameter at the predetermined time calculated by the pulse wave parameter change calculation unit 403. (Step S254). A method for estimating the change in thermal sensation will be described later.
- device control determining section 405 determines the control content of thermal / thermal apparatus 407 based on the estimation result of the user's thermal sensation estimated by thermal sensation change estimating section 404 (step S 255). ). For example, if the estimation result of the change in thermal sensation is “decreased thermal sensation”, the device control determination unit 405 determines the control content of the thermal cooling / heating device 407 so that the thermal sensation increases. If the estimation result of the change in thermal sensation is “increased thermal sensation”, the device control determination unit 405 determines the control content of the thermal chiller 407 so that the thermal sensation decreases. Then, device control determining section 405 outputs the control details to heating / cooling device 407 (step S256).
- FIG. 46 is a graph showing the correlation between the acceleration pulse waveform component ratio dZa, the acceleration pulse wave amplitude or RP-dw, and the user's thermal sensation found by the present inventors through a subject experiment.
- FIG. 47 is a graph showing the correlation between the acceleration pulse waveform component ratio bZa and the user's thermal sensation found by the present inventors through the subject experiment.
- the horizontal axis represents the user's thermal sensation
- the vertical axis represents the acceleration pulse waveform component ratio d Za, acceleration pulse wave amplitude, or RP-dw.
- the horizontal axis represents the user's thermal sensation
- the vertical axis represents the acceleration pulse wave component ratio bZa.
- Acceleration pulse wave component ratio bZa, d Za, acceleration pulse wave amplitude or RP-dw decreases.
- the present inventors have found that the acceleration pulse wave formation ratio bZa, dZa, acceleration pulse wave amplitude or RP-dw and thermal sensation have such a correlation. I found out.
- the thermal sensation change estimation unit 04 is a pulse wave parameter (hereinafter referred to as acceleration pulse wave component ratio dZa) out of the acceleration pulse wave component ratio bZa, d / a, acceleration pulse wave amplitude and RP-dw described above.
- the correlation between the change and the change in the user's thermal sensation is held in advance.
- FIG. 48 is a flowchart showing a thermal sensation change estimation process by thermal sensation change estimation unit 404 in the thirteenth embodiment.
- the thermal sensation change estimation unit 404 receives a time change amount within a predetermined time of the acceleration pulse wave component ratio dZa from the pulse wave parameter change calculation unit 403 (step S261).
- the thermal sensation change estimation unit 404 determines whether or not the temporal change amount of the pulse wave parameter is smaller (step S262). That is, the thermal sensation change estimation unit 404 determines whether or not the acceleration pulse waveform component ratio dZa decreases!
- step S262 If it is determined that the time variation of the pulse wave parameter is less than 0, that is, if it is determined that the acceleration pulse waveform component ratio dZa is decreasing (YES in step S262), the change in thermal sensation is estimated.
- Unit 404 estimates that the thermal sensation of the user has decreased (step S263). On the other hand, if it is determined that the time variation force ⁇ is greater than or equal to (NO in step S262), the thermal sensation change estimation unit 404 determines whether or not it is greater than the time variation force ⁇ of the pulse wave parameter. Step S264). That is, the thermal sensation change estimation unit 404 determines whether or not the acceleration pulse waveform component ratio dZa is increased.
- step S264 If it is determined that the time variation of the pulse wave parameter is greater than 0, that is, if it is determined that the acceleration pulse waveform component ratio dZa is increasing (YES in step S264), the thermal sensation change is estimated.
- Unit 404 estimates that the thermal sensation of the user has increased (step S265).
- step S266 the thermal sensation change estimation unit 404 estimates that the thermal sensation of the user has not changed. Thereafter, the thermal sensation change estimation unit 404 outputs the estimation result to the device control determination unit 405 (step S267).
- the thermal sensation change estimation unit 404 uses the parameters of the acceleration pulse waveform component ratio bZa, ⁇ / a, acceleration pulse wave amplitude, and RP—dw to determine the user's Use the absolute value of pulse wave parameters with individual differences by estimating whether the thermal sensation increases, the user's thermal sensation decreases, or the user's thermal sensation does not change. Therefore, it is possible to estimate a change in the user's thermal sensation, and to appropriately control the thermal chiller 407 such as an air conditioner constituting the living environment based on the user's thermal sensation.
- step S262 and step S264 in FIG. 48 the change in the user's thermal sensation is estimated based on whether the pulse wave parameter value is negative, 0, or positive.
- threshold values LI and L2 (where L1 ⁇ L2) are set, and by comparing the threshold values LI and L2 with the amount of change over time, the user's temperature The change in feeling is estimated.
- FIG. 49 is a flowchart showing a thermal sensation change estimation process by the thermal sensation change estimation unit 404 in the first modification of the thirteenth embodiment. Note that the processing in steps S271, S273, S275, S276, and S277 shown in FIG. 49 is the same as the processing in steps S261, S263, S265, S266, and S267 shown in FIG. However, the processing in steps S272 and S274 different from FIG. 48 will be mainly described.
- step S272 the thermal sensation change estimation unit 404 determines whether or not the temporal change amount of the pulse wave parameter is smaller than the threshold value L1. That is, the thermal sensation change estimation unit 404 determines whether or not the acceleration pulse wave component ratio dZa is substantially reduced.
- the thermal sensation change estimation unit 404 estimates that the thermal sensation of the user has decreased (step S273). On the other hand, when it is determined that the amount of time change is equal to or greater than the threshold L1 (NO in step S272), the thermal sensation change estimation unit 404 has a time change amount of the pulse wave parameter greater than the threshold L2 greater than the threshold L1. (Step S274). That is, the thermal sensation change estimation unit 404 determines whether or not the acceleration pulse waveform component ratio dZa is substantially increased.
- the thermal sensation change estimation unit 404 estimates that the thermal sensation of the user has increased (step S275).
- the thermal sensation change estimation unit 404 estimates that the thermal sensation of the user has changed (step S276).
- FIG. 50 is a graph showing the correlation between the median value of the orbital parallel measure and the thermal sensation of the user, found by the present inventors in the subject experiment.
- the horizontal axis represents the user's thermal sensation
- the vertical axis represents the median value of the orbital parallel measure.
- the thermal sensation change estimation unit 404 previously holds a correlation between the change and the user's thermal sensation change with respect to the above-described median value of the orbital parallel measure.
- FIG. 51 is a flowchart showing a thermal sensation change estimation process by the thermal sensation change estimation unit 404 in the second modification of the thirteenth embodiment.
- the thermal sensation change estimation unit 404 receives the pulse wave parameter change calculation unit 403 within a predetermined time of the median orbital parallel measure. Receive time change amount (step S281).
- the thermal sensation change estimation unit 404 determines whether or not the temporal change amount of the pulse wave meter is smaller than the threshold value L1 (step S282). That is, the thermal sensation change estimation unit 404 determines whether or not the median value of the orbital parallel measure is substantially decreased.
- step S282 If it is determined that the amount of time change is smaller than the preset threshold L1, that is, if it is determined that the median value of the trajectory parallel measure is substantially decreased (YES in step S282), The sensation change estimation unit 404 estimates that the user's thermal sensation has increased (step S283). O On the other hand, if it is determined that the amount of time change is greater than or equal to the threshold L1 (NO in step S282), the thermal sensation change The estimation unit 404 determines whether or not the temporal change amount of the pulse wave parameter is greater than the threshold value L2 that is greater than the threshold value L1 (step S284). That is, the thermal sensation change estimation unit 404 determines whether or not the median value of the orbital parallel measure is substantially increased.
- step S284 If it is determined that the amount of time change is greater than the preset threshold L2, that is, if it is determined that the median value of the orbital parallel measure is substantially increased (YES in step S284), the temperature The cooling sensation change estimation unit 404 estimates that the thermal sensation of the user has decreased (step S285). On the other hand, if it is determined that the amount of time change is greater than or equal to threshold L1 and less than or equal to threshold L2, that is, if it is determined that the median value of the trajectory parallel measure has not changed substantially (NO in step S284). ), The thermal sensation change estimation unit 404 estimates that the thermal sensation of the user has not changed (step S286). After that, the thermal sensation change estimation unit 404 outputs the estimation result to the device control determination unit 405 (step S287).
- FIG. 33 in the ninth embodiment is a graph showing a second-order correlation with the thermal sensation of the user on the horizontal axis.
- the acceleration pulse waveform component ratio cZa decreases when the user's thermal sensation increases, and the acceleration pulse waveform component ratio cZa increases when the user's thermal sensation decreases! /
- the correlation is similar to the correlation of the trajectory parallel measure median value (TPMMed) shown in Fig. 50. Therefore, the processing of the second modification of the present embodiment may be performed using the time variation of the acceleration pulse wave component ratio cZa.
- the thermal sensation change estimation unit 404 is a force that increases the user's thermal sensation based on a change in the median value of the orbital parallel measure, or a force that decreases the user's thermal sensation, or By estimating whether the user's thermal sensation has changed, the change in the user's thermal sensation can be estimated without using the absolute value of the pulse wave parameter with individual differences. It is possible to appropriately control the heating / cooling equipment 407 such as air conditioning equipment that constitutes the living environment based on the cool feeling.
- FIG. 52 is a block diagram showing the configuration of the environmental control apparatus according to Embodiment 14 of the present invention.
- the same components as those in FIG. 44 are denoted by the same reference numerals and description thereof is omitted.
- the environmental control device 406 has a pulse wave meter calculation unit 421, 422, a pulse wave parameter change calculation unit 431, 432, and a thermal sensation change estimation.
- a plurality of sets of fixed parts 441 and 442 are provided, and a thermal sensation change determining part 408 is further provided.
- Thermal sensation change estimation unit 442 is an acceleration pulse wave component ratio bZa, dZa, cZa, acceleration pulse wave amplitude, RP-dw and A different parameter is calculated for each of the median values of the orbital parallel measure, the amount of change over time is calculated, and the calculation result of the amount of change is based on the correlation between the above parameters and the change in thermal sensation of the user Each change in the user's thermal sensation is estimated simultaneously.
- the thermal sensation change determination unit 408 includes the user's thermal sensation estimated by the first pulse wave parameter calculation unit 421, the first pulse wave parameter change calculation unit 431, and the first thermal sensation change estimation unit 441. Estimation result of the change in feeling, and estimation of the change in the user's thermal sensation estimated by the second pulse wave parameter calculation unit 422, the second pulse wave parameter change calculation unit 432, and the second thermal sensation change estimation unit 442 Compared with the result, the estimation result of the change in the user's thermal sensation is determined.
- FIG. 53 is a flowchart showing a thermal sensation change determination process by the thermal sensation change determination unit 408 according to the fourteenth embodiment.
- the thermal sensation change determining unit 408 determines changes in the user's thermal sensation estimated based on different parameters from the first thermal sensation change estimating unit 441 and the second thermal sensation change estimating unit 442, respectively.
- Receive estimation results step S29 D o
- the thermal sensation change determination unit 408 compares the received two thermal sensation estimation results, and determines whether or not the two thermal sensation estimation results match (step S292). If it is determined that the two thermal sensation estimation results match (YES in step S292), thermal sensation change determination unit 408 outputs the matching thermal sensation change estimation result to device control determination unit 405. (Step S293). On the other hand, if it is determined that the two thermal sensation estimation results do not match (NO in step S292), thermal sensation change determination unit 408 does not output the thermal sensation estimation result to device control determination unit 405. Then, the process ends.
- the device control determination unit 405 determines the control content of the thermal chiller 407 based on the received thermal sensation estimation result (Fig. 4 5 Step S255). For example, if the estimation result of the change in thermal sensation is “decreased thermal sensation,” device control determining section 405 determines the control content of thermal chiller 407 so that the thermal sensation increases. Further, if the estimation result of the change in thermal sensation is “increased thermal sensation”, the device control determination unit 405 determines the control content of the thermal chiller device 407 so that the thermal sensation decreases. Then, device control determining section 405 outputs the control contents to heating / cooling device 407 (step S 256 in FIG. 45).
- the thermal sensation change determination unit 408 does not agree with the two thermal sensation estimation results. If the estimation result of the cooling sensation is not output, the device control decision unit 405 determines that the user has a clear change in the thermal sensation and maintains the current control content of the thermal chiller 407. Do
- a change in the user's thermal sensation is estimated simultaneously based on a plurality of different pulse wave parameters, and the change in the thermal sensation is determined by comparing the plurality of estimation results. Therefore, the pulse wave may change under the influence other than the change in the thermal environment, but the change in the user's thermal sensation due to the change in the thermal environment can be accurately estimated.
- the estimation results of multiple thermal sensations match, the estimation results are output, and if they do not match, they are not output, so the pulse wave parameter of 1 changes due to factors other than changes in the thermal environment. Even in such a case, the control content of the heating / cooling device 407 is not changed, and it is possible to avoid discomforting the user.
- the environmental control apparatus in the present embodiment includes two sets of a pulse wave parameter calculation unit, a pulse wave parameter change calculation unit, and a thermal sensation change estimation unit. It is not limited, and three or more sets may be provided. In this case, each pulse wave parameter calculation unit calculates a different pulse wave parameter.
- the fifteenth embodiment of the present invention will be described below.
- the difference between the fifteenth embodiment and the thirteenth embodiment or the fourteenth embodiment is the processing of the thermal sensation change determining unit 408 in FIG.
- the configuration of the environment control device in the fifteenth embodiment is the same as the configuration of the environment control device in the fourteenth embodiment, and a description thereof will be omitted.
- FIG. 54 is a flowchart showing a flow of thermal sensation change determination processing by the thermal sensation change determination unit 408 in the fifteenth embodiment.
- the thermal sensation change determining unit 408 determines changes in the user's thermal sensation estimated based on different parameters from the first thermal sensation change estimating unit 441 and the second thermal sensation change estimating unit 442, respectively.
- Step S30 Do the thermal sensation change determination unit 408 compares the two received thermal sensation estimation results and compares the thermal sensation estimation results and coefficients according to the table shown in FIG. k is determined (step S3 02).
- FIG. 55 shows the estimation results by the first thermal sensation change estimation unit and the second thermal sensation change estimation unit and the thermal sensation determined by the thermal sensation change determination unit in the fifteenth embodiment. It is a figure which shows an example of the table which linked
- the change in thermal sensation is determined.
- one of the estimation result in the first thermal sensation change estimation unit 441 and the estimation result in the second thermal sensation change estimation unit 442 is one in which the thermal sensation increases and the other has no thermal sensation change.
- the thermal sensation change determining unit 408 outputs the determined thermal sensation change and the coefficient k to the device control determining unit 405 (step S 303).
- FIG. 56 is a flowchart showing a flow of control content determination processing by the device control determination unit 405 in the fifteenth embodiment.
- the device control determination unit 405 receives the thermal sensation change determined by the thermal sensation change determination unit 408 and the coefficient k (step S311).
- device control determining section 405 determines whether or not the received change in thermal sensation is a force that reduces thermal sensation (step S312).
- the device control determination unit 405 calculates a value obtained by multiplying the predetermined change amount when the thermal sensation decreases by a factor k.
- the current control content of the heating / cooling device 407 is calculated (step S313).
- step S312 device control determination unit 405 determines whether the change in thermal sensation is an increase in thermal sensation. (Step S314). If it is determined that the change in thermal sensation is an increase in thermal sensation (YES in step S314), the device control determination unit 405 calculates the previous value obtained by multiplying the predetermined change amount during the increase in thermal sensation by a coefficient k. In addition to the control details, the current control details of the heating / cooling device 407 are calculated (step S315).
- the device control determination unit 405 If it is determined that the change in thermal sensation is not an increase in thermal sensation, that is, if there is no change in thermal sensation (NO in step S314), the device control determination unit 405 The current control content of 407 is made the same as the previous control content (step S316). After that, the device control determination unit 405 outputs the calculated control content to the heating / cooling device 407 (step in FIG. 45). S256). As a result, the heating / cooling apparatus 407 is controlled with the control content based on the estimation result of the thermal sensation and the coefficient k.
- a change in thermal sensation of the user is estimated simultaneously based on a plurality of respective pulse wave parameters, and the change in thermal sensation is determined by comparing the plurality of estimation results. Therefore, it is possible to accurately estimate the change in the user's thermal feeling due to the change in the thermal environment.
- the estimation results of multiple thermal sensations match, the estimation results are output, and when they do not match, they are not output, so this is the case when the pulse wave parameter 1 has changed due to factors other than changes in the thermal environment.
- the control content of the heating / cooling device 407 is not changed, and it can be avoided that the user feels uncomfortable.
- the amount of change in the control content is also appropriately determined according to the estimated change in thermal sensation based on multiple pulse wave parameters, thus providing a more comfortable thermal environment for the user. Can do.
- the amount of change in the control content is, for example, the amount of change in the air volume of the air conditioner, the amount of change in the set room temperature, the amount of change in the set outlet temperature, the amount of change in the compressor frequency, the degree of opening of the expansion valve.
- the amount of change is, the amount of change in the set temperature of the floor heating system, the amount of change in heater ON time for electric carpets and seat heaters, and the amount of change in heater capacity.
- the coefficient k has been described as 0, 0.5, 1, but the present invention is not particularly limited to this, and each thermal sensation estimated based on a plurality of pulse wave parameter changes.
- the coefficient k may be increased as the matching ratio increases.
- Embodiment 16 of the present invention will be described below.
- the difference between the sixteenth embodiment and the thirteenth to fifteenth embodiments described above is that the present inventors have found the acceleration pulse wave waveform component ratio bZa shown in FIG. With regard to the correlation with the feeling, it was found that the acceleration pulse wave parameter bZa hardly changed with respect to the feeling of thermal cooling especially when the thermal feeling was 1 or more.
- the processing of the thermal sensation change estimation unit 404 in FIG. 44 is different.
- the configuration of the environment control device in the sixteenth embodiment is the same as the configuration of the environment control device in the thirteenth embodiment, and a description thereof will be omitted.
- FIG. 57 shows the thermal sensation change estimation process by thermal sensation change estimation unit 404 in the sixteenth embodiment. It is a flowchart which shows the flow of reason.
- the thermal sensation change estimation unit 404 receives the time change amount of the acceleration pulse wave waveform component ratio bZa within a predetermined time from the pulse wave parameter change calculation unit 403 (step S321).
- the thermal sensation change estimation unit 404 determines whether or not the amount of time change is smaller than a preset threshold value L1 (step S322). If it is determined that the amount of time change is less than the preset threshold L1, that is, if it is determined that the acceleration pulse wave component ratio bZa is substantially decreasing (YES in step S322), The sensation change estimation unit 404 estimates that the thermal sensation of the user has decreased (step S323). Thereafter, the thermal sensation change estimation unit 404 outputs the estimation result to the device control determination unit 405 (step S329).
- the thermal change estimation unit 404 determines whether or not the amount of time change is greater than the threshold L2 greater than the threshold L1. Is determined (step S324). If it is determined that the amount of time change is greater than the preset threshold L2, that is, if the acceleration pulse wave component ratio bZa is substantially increasing (YES in step S324), the thermal sensation change estimation unit 404 Estimates that the thermal sensation of the user has increased (step S325).
- the thermal sensation change The estimation unit 404 further refers to the previous time change amount, and determines whether or not the previous time change amount is less than or equal to a preset threshold value L2 (step S326).
- the thermal sensation change estimation unit 404 estimates that the thermal sensation of the user has not changed (step S327). Thereafter, the thermal sensation change estimation unit 404 outputs the estimation result to the device control determination unit 405 (step S329).
- the thermal sensation change estimation unit 404 estimates that the thermal sensation of the user has increased to a predetermined value or more (step S328). Thereafter, the thermal sensation change estimation unit 404 outputs the estimation result to the device. The data is output to the control determination unit 405 (step S329).
- the present inventors found that the user's thermal sensation is greater than or equal to a predetermined value (1: slightly warm), and the acceleration pulse wave parameter bZa Applied to the fact that the user's thermal sensation has increased, the user's thermal sensation has decreased, or the user's thermal sensation has changed. It is possible to estimate whether or not the user's thermal sensation has been warmed beyond a predetermined value (1: slightly warm! /). Therefore, it is possible to estimate the change in thermal sensation of the user without using the absolute value of the pulse wave parameter with individual differences, and to appropriately control the thermal / thermal equipment 407 constituting the living environment based on the thermal sensation. Can do.
- the heating capacity of the heating / cooling device 407 can be suppressed to contribute to energy saving, or the heating / cooling device.
- the cooling capacity of 407 it is possible to quickly realize a comfortable thermal environment that is neither hot nor cold.
- Embodiment 17 of the present invention the difference from the thirteenth to sixteenth embodiments described above is that the inventors have found the acceleration pulse wave waveform component ratio bZa shown in FIG. With regard to the correlation with the feeling, it was found that the acceleration pulse wave parameter bZa hardly changed with respect to the feeling of thermal cooling especially when the thermal feeling was 1 or more.
- the processing of the thermal sensation change determining unit 408 in FIG. 52 that has received the thermal sensation change estimation result described in Embodiment 16 is different, and more specifically, in step S 302 of FIG.
- the method for determining the thermal sensation change is different from the method for determining the coefficient k.
- a thermal sensation change determination unit 408 includes a user's thermal sensation estimated based on mutually different parameters from the first thermal sensation change estimation unit 441 and the second thermal sensation change estimation unit 442.
- the estimation result of the change is received (step S301).
- the first thermal sensation change estimation unit 441 estimates the change of the user's thermal sensation based on the temporal variation of the acceleration pulse wave component ratio bZa.
- the thermal sensation change determining unit 408 estimates the two received thermal sensations. The results are compared, and the thermal sensation estimation result and coefficient k are determined according to the table shown in FIG. 58 (step S 302).
- FIG. 58 shows the estimation results of the first thermal sensation change estimation unit and the second thermal sensation change estimation unit and the thermal sensation determined by the thermal sensation change determination unit in the seventeenth embodiment. It is a figure which shows an example of the table which linked
- both the estimation result in the first thermal sensation change estimation unit 441 and the estimation result in the second thermal sensation change estimation unit 442 are both increased in thermal sensation, the change in thermal sensation is determined.
- one of the estimation result in the first thermal sensation change estimation unit 441 and the estimation result in the second thermal sensation change estimation unit 442 is one in which the thermal sensation increases and the other is the thermal sensation decrease.
- the estimation result in the first thermal sensation change estimation unit 441 estimated based on the time variation of the acceleration pulse waveform component ratio bZa is an increase in thermal sensation
- the time other than the acceleration pulse waveform component ratio bZa is unchanged
- FIG. 59 is a flowchart showing a process flow of the device control determination unit 405 according to the seventeenth embodiment.
- device control determining section 405 receives the thermal sensation change and coefficient k determined by thermal sensation change determining section 408 (step S331).
- device control determining section 405 determines whether or not the received change in thermal sensation is a decrease in thermal sensation (step S332).
- step S332 When it is determined that the change in thermal sensation is a decrease in thermal sensation (YES in step S332), device control determination unit 405 multiplies the predetermined change amount at the time of thermal sensation reduction by coefficient k. The value is added to the previous control content, and the current control content of the heating / cooling equipment 407 is calculated (step S333). On the other hand, when it is determined that the change in thermal sensation is not a decrease in thermal sensation (N0 in step S332), the device control determination unit 405 determines that the change in thermal sensation is greater than or equal to a predetermined value. It is determined whether or not (step S334).
- the device control determination unit 405 sets the current control content of the thermal chiller device when the thermal sensation rises. A value obtained by multiplying the predetermined change amount by the coefficient k is added to the previous control content, and the current control content of the heating / cooling device 407 is calculated (step S335). In addition, when it is determined that the change in thermal sensation is not an increase in thermal sensation or is not greater than the predetermined value, that is, when there is no change in thermal sensation (NO in step S334), the device control determination unit 405 Makes the current control content of the heating / cooling device 407 the same as the previous control content (step S336).
- device control determination section 405 outputs the calculated control content to heating / cooling device 407 (step S256 in FIG. 45).
- the heating / cooling device 407 is controlled with the control content based on the thermal sensation estimation result and the coefficient k.
- the amount of change in the control content is, for example, the amount of change in the air volume of the air conditioner, the amount of change in the set room temperature, the amount of change in the set outlet temperature, the amount of change in the compressor frequency, the amount of change in the opening of the expansion valve, the floor These are the amount of change in the set temperature of the heating system, the amount of change in heater ON time for electric carpets and seat seat heaters, and the amount of change in heater capacity.
- the acceleration pulse wave parameter bZa almost changes with respect to the thermal sensation change. Applying this, it can be estimated whether the user is warm as in the case of the sixteenth embodiment. Therefore, when the user is too warm, the heating capacity of the heating / cooling equipment 407 can be suppressed to contribute to energy saving. It is also possible to realize a comfortable thermal environment that removes the cold and heat from the user, that is, it is neither hot nor cold.
- the force described with the coefficient k set to 0, 0.5, 1 is not limited to this.
- the change in thermal sensation estimated based on a plurality of pulse wave parameter changes.
- the value of the coefficient k may be increased as the matching ratio is higher.
- An environment control device performs chaos analysis on biological information acquisition means for acquiring time-series data of user's biological information, and the time-series data acquired by the biological information acquisition means. Based on the parameter calculation means for calculating the parameters relating to biological information, the estimation means for estimating the user's comfort based on the parameters calculated by the parameter calculation means, and the estimation result by the estimation means, give Stimulus control means for controlling the generation of the stimulus.
- An environment control method includes a biological information acquisition step of acquiring time-series data of a user's biological information, and the time-series data acquired in the biological information acquisition step.
- a parameter calculation step for calculating parameters related to biological information through chaos analysis, an estimation step for estimating a user's comfort based on the parameters calculated in the parameter calculation step, and an estimation result by the estimation step
- a stimulus control step for controlling generation of a stimulus to be given to the user.
- An environment control program includes a biological information acquisition unit that acquires time-series data of a user's biological information, and the time-series data acquired by the biological information acquisition unit. Based on parameter calculation means for calculating parameters related to biological information through chaos analysis, estimation means for estimating user comfort based on the parameters calculated by the parameter calculation means, and estimation results by the estimation means, The computer functions as a stimulus control means for controlling the generation of the stimulus given to the user.
- a computer-readable recording medium in which an environment control program according to another aspect of the present invention is recorded is obtained by a biological information acquisition unit that acquires time-series data of a user's biological information, and the biological information acquisition unit. Further, parameter calculation means for calculating a parameter relating to biological information by performing chaos analysis on the time series data, estimation means for estimating a user's comfort based on the parameter calculated by the parameter calculation means, and the estimation means Based on the estimation result by, the environment control program that makes the computer function as the stimulus control means for controlling the generation of the stimulus given to the user is recorded.
- the parameters related to the biological information are calculated by performing chaos analysis on the time-series data of the biological information of the user. Based on the calculated parameters, the user's comfort feeling for the stimulation is estimated, and the generation of the stimulus given to the user is controlled based on the estimation result. That is, when an estimation result that deteriorates the user's comfort is obtained, the user can be stimulated to improve the comfort.
- a comfortable feeling is estimated based on parameters calculated by performing chaos analysis on the time-series data of the user's biological information, and the generation of stimuli given to the user is controlled based on the estimation result. Therefore, the user can be sure to feel comfortable, The comfortable state can be maintained.
- the biological information is a user's pulse wave
- the stimulus control unit controls generation of a thermal / thermal stimulus given to the user
- the estimation unit includes the thermal / thermal stimulus described above. It is preferable to estimate the thermal sensation of the user with respect to.
- the thermal sensation of the user is estimated based on the parameter for evaluating the pulse wave, and the generation of the stimulus given to the user is controlled based on the estimation result. Therefore, since the user's thermal sensation is estimated from pulse waves that can be easily acquired from the biological information, the user's thermal sensation can be easily estimated without causing the user to feel uncomfortable.
- the device since the user's thermal sensation is estimated using pulse waves, the device is configured using specialized and expensive machines as in the case of estimating the user's thermal sensation using brain waves. The device can be configured using a simple and inexpensive machine.
- the parameter calculation means may perform any one of a maximum Lyapunov exponent, a recurrence plot white drawing rate, and a median value of the orbit parallel measure by performing a chaos analysis on the time series data. It is preferable that the estimation unit estimates the thermal sensation of the user based on the parameter calculated by the parameter calculation unit.
- the parameter calculating means calculates a maximum Lyapunov exponent as a parameter by performing chaos analysis on the time series data, and the estimating means calculates the maximum Lyapunov exponent. If the calorific value increases, it is estimated that the user's thermal sensation changes from the neutral state to the cold state or the neutral state force hot state and the thermal sensation deteriorates, and the maximum Lyapunov exponent decreases. If the user's thermal sensation is cold, the power changes to a neutral state or hot state force. I prefer to estimate that.
- the maximum Lyapunov exponent is calculated as a meter by performing chaos analysis on the time series data, and when the maximum Lyapunov exponent is increased, the user's thermal sensation becomes the neutral state force direction of cold state, Or Neutral State Force If the thermal sensation is presumed to have changed in the direction of the hot state and the maximum Lyapunov exponent is reduced, the user's thermal sensation is cold V, from state to neutral state, or hot. It is estimated that the thermal sensation improved from the state to the neutral state.
- the thermal control is given to improve the thermal sensation of the user, and if the thermal sensation is estimated to be improved, the current control Heat and cold stimulation can be applied to maintain the temperature.
- the equipment that constitutes the user's living environment for example, the air conditioning equipment, so that the user's thermal sensation is neither hot nor cold.
- the parameter calculation means calculates a recurrence plot white drawing rate as a parameter by performing chaos analysis on the time-series data, and the estimation means includes the recurrence When plot white drawing rate decreases, hot state force Neutral state direction or neutral state force It changes to cold state direction, presuming that the thermal sensation has deteriorated, and the recurrence plot white drawing rate increases In this case, it is preferable to estimate that the thermal sensation is improved by changing the user's thermal sensation into a cold state force neutral state or a neutral state force hot state.
- the thermal control is given to improve the thermal sensation of the user, and if the thermal sensation is estimated to be improved, the current control Heat and cold stimulation can be applied to maintain the temperature.
- the user's thermal feeling is not hot and cold It is possible to control equipment that constitutes the user's living environment, for example, air conditioning equipment, so that it is maintained in an appropriate state.
- the parameter calculating means calculates the median value of the trajectory parallel measure as a parameter by performing chaos analysis on the time series data, and the estimating means If the median value of the orbital parallel measure increases, it is estimated that the user's thermal sensation has changed from a hot state to a neutral state or a neutral state force cold state, and the thermal sensation has deteriorated. When the median value of the orbital parallel measure decreases, it is preferable to estimate that the thermal sensation has improved by changing the thermal sensation of the user from a cold state to a neutral state or a neutral state force hot state. ,.
- the thermal control is given to improve the thermal sensation of the user, and when the thermal sensation is estimated to be improved, the current control is performed.
- Heat and cold stimulation can be applied to maintain the temperature.
- the equipment that constitutes the user's living environment for example, the air conditioning equipment, so that the user's thermal sensation is neither hot nor cold.
- the parameter calculation means includes a first parameter calculation means for calculating a first parameter related to biological information by performing chaos analysis on the time series data, and the time series. Second parameter calculation means for calculating a second parameter related to biological information based on a change in data, wherein the estimation means includes the first parameter calculated by the first parameter calculation means and It is preferable to estimate the user's comfort based on the second parameter calculated by the second parameter calculating means.
- the first parameter related to biological information is analyzed by chaotic analysis of time-series data.
- Data a second parameter related to biological information is calculated based on the change in the time series data, and the user's comfort is estimated based on the calculated first parameter and the second parameter.
- the first parameter calculation unit calculates a maximum Lyapunov exponent by performing chaos analysis on the time series data
- the second parameter calculation unit includes The pulse wave amplitude or pulse wave height maximum value is calculated from the time series data, and the estimation means, when the maximum Lyapunov exponent increases and the pulse wave amplitude or the pulse wave height maximum value increases, When it is estimated that the thermal sensation of the body has changed in the direction of the neutral state force in the hot state, the maximum Lyapunov exponent decreases, and the pulse wave amplitude or the maximum value of the pulse wave height increases, the user's thermal sensation If the maximum Lyapunov exponent is increased and the pulse wave amplitude or the maximum pulse wave height is decreased, the user's feeling of cooling / cooling is not neutral. Cold When the maximum Lyapunov exponent is reduced and the pulse wave amplitude or the pulse wave height maximum value is reduced, the user's thermal sensation changes from a hot state to a neutral state. Preferable to estimate,
- the maximum Lyapunov exponent is calculated by performing chaos analysis on the time series data, and the pulse wave amplitude or pulse wave height maximum value is calculated from the time series data. If the maximum Lyapunov exponent increases and the pulse wave amplitude or pulse wave height maximum value increases, it is estimated that the user's thermal sensation has changed in the direction of neutral state hotness, and the maximum Lyapunov exponent is If it decreases and the pulse wave amplitude or pulse wave height maximum increases, it is estimated that the user's thermal sensation has changed in the direction of cold state force neutrality, the maximum Lyapunov exponent increases, and the pulse When the wave amplitude or pulse wave height maximum value decreases, it is estimated that the user's cooling sensation has changed in the direction of neutral state force cold state, the maximum Lyapunov exponent decreases, and the pulse wave amplitude or pulse wave height maximum value Decrease, the user's feeling of heat It is estimated that the state force has changed in the direction of the neutral state.
- the thermal sensation is estimated using two parameters, the maximum Lyapunov exponent and the pulse wave amplitude or pulse wave height maximum value, the influence of individual differences in biological information is eliminated. It is possible to accurately estimate the thermal feeling of the one. Since the stimulus given to the user is generated based on the estimation result, the user's thermal feeling can be surely led to an appropriate state that is neither hot nor cold.
- the stimulus control means generates and generates control data for controlling the stimulus given to the user based on the estimation result by the estimation means.
- the control data is output to the estimation means, and the estimation means outputs the temperature of the user based on the fluctuation of the maximum Lyapunov exponent obtained by chaos analysis and the control data generated by the stimulus control means. It is preferable to estimate the cool feeling.
- the estimation means estimates the user's thermal sensation using the control data generated by the stimulus control means and the maximum Lyapunov exponent.
- the thermal sensation is estimated using not only the maximum Lyapunov exponent but also the control data and two other parameters, the influence of individual differences in biological information is eliminated and the user's thermal sensation is accurately determined. Can be estimated. Since the stimulus given to the user is generated based on the estimation result, the user's thermal sensation can be surely led to an appropriate state that is neither hot nor cold.
- control data includes data indicating the output intensity of the cooling device that generates the stimulus
- estimation means determines the cooling from the control data.
- the estimation means indicates that the user's thermal sensation changes in the direction of the neutral state force in the cold state. presume.
- the user's thermal sensation is estimated from the combination of the increase or decrease of the maximum Lyapunov exponent and the increase or decrease of the output intensity of the cooling device. Can accurately estimate the thermal sensation of the water. Since the stimulus given to the user is generated based on the estimation result, the user's thermal feeling can be surely led to an appropriate state that is neither hot nor cold.
- the control data includes data indicating the output intensity of the heating device that generates a stimulus
- the estimation means performs the heating from the control data. It is determined whether the output intensity of the apparatus is increasing or decreasing, and the estimating means increases the maximum Lyapunov exponent obtained by chaotic praying and the output intensity of the heating apparatus is increased. Thermal sensation is neutral state force If the maximum Lyapunov exponent decreases and the cooling device output intensity increases, the thermal sensation of cold is the cold state force. If the maximum Lyapunov exponent increases and the output intensity of the heating device decreases, it is estimated that the user's thermal sensation has changed to a neutral state force cold state. The maximum Lyapunov exponent Reduced, and if the output intensity of the heating device is reduced, thermal sensation of the user is preferably also estimated to have changed in the direction of the neutral state hot state force.
- the estimation means indicates that the user's thermal sensation has changed toward a state where the neutral state force is also hot.
- the output intensity of the heating device increases and the maximum Lyapunov exponent decreases, it is estimated that the user's thermal sensation has changed from a cold state to a neutral state.
- the output intensity of the heating system decreases and the maximum Lyapunov exponent increases, it is estimated that the user's thermal sensation has changed in the direction of neutral state cold.
- the thermal sensation of the user is estimated to have changed from the hot state force toward the neutral state.
- the parameter calculation means includes a first parameter calculation means for calculating a first parameter related to biological information by performing chaos analysis on the time series data, and the time series.
- Second parameter calculating means for calculating a second parameter related to biological information based on a change in data, wherein the estimating means uses the first parameter calculated by the first parameter calculating means as a first parameter.
- First estimating means for estimating the user's comfort based on the second estimation means for estimating the user's comfort based on the second parameter calculated by the second parameter calculating means.
- the stimulation control means includes: a first stimulus control means for controlling generation of a stimulus given to the user based on an estimation result by the first estimation means; and an estimation result by the second estimation means.
- And second stimulus control means for controlling the generation of the stimulus given to the user, and based on the change in the time series data, the control by the first stimulus control means and the second stimulus control means It is preferable to further include a stimulus control switching means for switching between the control by the stage.
- the first parameter related to biological information is calculated by performing chaos analysis on the time-series data, and the second parameter related to biological information is calculated based on the change in the time-series data. Is done. Then, the user's comfort is estimated based on the first parameter, and the generation of the stimulus given to the user is controlled by the first stimulus control means based on the estimation result. Further, the user's comfort is estimated based on the second parameter, and the generation of the stimulus given to the user is controlled by the second stimulus control means based on the estimation result. Based on the change in the time series data, the control by the first stimulus control means The control by the second stimulus control means is switched.
- a sufficient period of time for example, several minutes to 15 minutes, is required to estimate the user state by performing chaos analysis on the time series data.
- the user's state can be estimated with a certain degree of accuracy in a short time, for example, about 5 seconds to about 10 seconds.
- the present invention can be sufficiently applied to control of devices constituting the user's living environment, such as air conditioners, lighting devices, video devices, and audio devices.
- the first stimulus control means may be based on the estimation result by the first estimation means, and the user may feel relaxed, comfortable, or warm.
- a first stimulus value for generating a stimulus having an intensity that improves the cooling sensation is calculated, and the second stimulus control means is based on the estimation result of the second estimation means, and the user feels relaxed and comfortable.
- calculating a second stimulus value that causes the stimulus generating means to generate a stimulus having an intensity that improves thermal sensation is based on the first stimulus value and the second stimulus value. It is preferable to calculate a stimulus output value and generate a stimulus indicated by the calculated stimulus output value.
- the stimulation output value is calculated based on the first stimulation value and the second stimulation value, and is calculated. Since the stimulus indicated by the stimulus output value that has been generated is generated, it is possible to give the user a stimulus having a preferred V ⁇ intensity according to the user's condition.
- the stimulus control switching means calculates a stimulus output value that controls generation of a stimulus given to the user, and the change in the time-series data is a predetermined value.
- the second stimulus value is set as the stimulus output value when the lower limit specified value is not more than the lower limit specified value, and the second stimulus value is set as the stimulus output value when the change in the time series data is larger than a predetermined upper limit specified value. Is preferred.
- the stimulus control switching means has a change in the time-series data larger than a predetermined first specified value (> the lower limit specified value).
- a predetermined first specified value > the lower limit specified value.
- the first stimulus value is used as the stimulus output value when it is equal to or smaller than a predetermined second prescribed value (the first prescribed value ⁇ the second prescribed value ⁇ the upper prescribed value).
- the stimulus control switching means may be configured to change the time-series data when the change in the time-series data is greater than the lower limit specified value and less than the first specified value.
- the weight coefficient for both stimulus values is determined so that the weight coefficient for the first stimulus value increases and the weight coefficient for the second stimulus value decreases.
- the stimulus output value is a value obtained by adding both stimulus values according to the determined weight coefficient.
- the stimulus given to the user can be controlled by combining the control by the first stimulus control means and the control by the second stimulus control means at an appropriate ratio.
- the stimulus control switching means may be configured to change the time-series data when the change in the time-series data is greater than the second prescribed value and less than the upper prescribed value.
- the weighting coefficient for the first stimulus value decreases and the weighting coefficient for both stimulus values is determined so that the weighting coefficient for the second stimulus value increases.
- a value obtained by adding both stimulus values according to the weighting factor is preferably used as the stimulus output value.
- the first estimating means calculates the maximum Lyapunov exponent of the biological information as a pulse wave chaos parameter, and the calculated pulse wave chaos parameter is If it is equal to or greater than the predetermined third specified value, it is estimated that the user's feeling of relaxation, comfort, or thermal sensation has improved, and if the pulse wave chaos parameter is less than the third specified value, It is preferable to estimate that the feeling of relaxation, comfort, or warmth is not improved. According to this configuration, since the user state is estimated based on the maximum Lyapunov exponent, the user state can be accurately estimated.
- the first stimulus control means has improved a user's sense of relaxation, comfort, or thermal sensation by the first estimation means. If the first stimulus value is calculated so that the current stimulus intensity is maintained, and it is estimated that the user's relaxed feeling, comfort feeling, or thermal feeling is not improved, It is preferable to calculate the first stimulus value so that the intensity is enhanced.
- the first estimation means is calculated by the first parameter calculated by the first parameter calculation means and the second parameter calculation means. It is preferable to estimate the user's comfort based on the second parameter.
- the first parameter related to biological information is calculated by performing chaos analysis on the time series data, and the second parameter related to biological information is calculated based on the change in the time series data. Is done. Then, the user's comfort is estimated based on the first parameter and the second parameter, and the generation of the stimulus given to the user is controlled by the first stimulus control means based on the estimation result. Is done. Further, the user's comfort is estimated based on the second parameter, and the generation of the stimulus given to the user is controlled by the second stimulus control means based on the estimation result. Then, based on the change in the time series data, the control by the first stimulus control means and the control by the second stimulus control means are switched.
- the environmental control apparatus further includes room temperature measuring means for measuring a room temperature of a room where the user is present, and the parameter calculating means performs chaos analysis on the time-series data to thereby generate a maximum Lyapunov.
- the estimation means estimates that the user's thermal sensation has changed from a neutral state to a hot state, and the maximum Lyapunov
- the index decreases and the room temperature increases, it is estimated that the user's thermal sensation has changed from a cold state to a neutral state, the maximum Lyapunov index increases, and the room temperature decreases.
- the maximum Lyapunov index is decreased, and the room temperature is lowered, whether the user's thermal sensation is hot. It is preferable to estimate that the direction has changed to the neutral state.
- the room temperature of the room where the user is present is measured, and the maximum Lyapunov exponent is calculated by performing force-force analysis on the time-series data. If the maximum Lyapunov exponent increases and the room temperature rises, it is estimated that the user's thermal sensation has changed from a neutral state to a hot state, the maximum Lyapunov exponent decreases, and the room temperature rises.
- the maximum Lyapunov exponent increases, and the room temperature decreases, the user's thermal sensation goes from neutral to cold. If the maximum Lyapunov exponent decreases and the room temperature decreases, it is estimated that the user's thermal sensation has changed toward a hot state force neutral state.
- the thermal sensation is estimated using two types of meters, the maximum Lyapunov exponent and the room temperature, which is obtained only by the maximum Lyapunov exponent.
- the feeling can be accurately estimated. Since a stimulus given to the user is generated based on the estimation result, the user's thermal feeling can be surely led to an appropriate state that is neither hot nor cold.
- An environmental control device is based on a biological information acquisition unit that acquires time-series data of a user's biological information, and a change in the time-series data acquired by the biological information acquisition unit.
- the estimation means for estimating the user's comfort based on the parameters calculated by the parameter calculation means, and the estimation result by the estimation means, Stimulus control means for controlling the generation of the stimulus.
- the environment control method includes a biological information acquisition step of acquiring time-series data of a user's biological information, and the time-series data acquired in the biological information acquisition step.
- a parameter calculation step for calculating a parameter related to biological information based on the change, an estimation step for estimating a user's comfort based on the parameter calculated in the parameter calculation step, and an estimation result by the estimation step
- a stimulus control step for controlling generation of a stimulus to be given to the user.
- An environment control program includes a biometric information acquisition unit that acquires time-series data of a user's biometric information, and a pre-acquisition acquired by the biometric information acquisition unit.
- Parameter calculating means for calculating parameters relating to biological information based on changes in the time series data, estimating means for estimating a user's comfort based on the parameters calculated by the parameter calculating means, and the estimation Based on the estimation result by the means, the computer is caused to function as a stimulus control means for controlling the generation of the stimulus given to the user.
- a computer-readable recording medium in which an environment control program according to another aspect of the present invention is recorded is obtained by a biological information acquisition unit that acquires time-series data of a user's biological information, and the biological information acquisition unit. Further, parameter calculation means for calculating a parameter relating to biological information based on the change in the time series data, estimation means for estimating a user's comfort based on the parameter calculated by the parameter calculation means, and the estimation means On the basis of the estimation result obtained by the above, an environment control program that causes the computer to function as a stimulus control means for controlling generation of a stimulus given to the user is recorded.
- parameters related to biological information are calculated based on changes in time-series data of the biological information of the user. Based on the calculated parameters, the user's comfort feeling for the stimulation is estimated, and the generation of the stimulus given to the user is controlled based on the estimation result. That is, when an estimation result that deteriorates the user's comfort is obtained, the user can be stimulated to improve the comfort.
- comfort is estimated based on parameters calculated based on changes in the time-series data of the user's biological information, and generation of stimuli given to the user is controlled based on the estimation result. Therefore, the user can surely feel a comfortable feeling and can maintain the comfortable state.
- the biological information is a user's pulse wave
- the stimulation control unit controls generation of a thermal / thermal stimulus given to the user
- the estimation unit includes: It is preferable to estimate the thermal sensation of the user with respect to the thermal and thermal stimulation.
- the thermal sensation of the user is estimated based on the parameter for evaluating the pulse wave, and the generation of the stimulus given to the user is controlled based on the estimation result. Therefore, since the user's thermal sensation is estimated from pulse waves that can be easily acquired from the biological information, the user's thermal sensation can be easily estimated without causing the user to feel uncomfortable. In addition, since the user's thermal sensation is estimated using pulse waves, the user's thermal sensation is estimated using brain waves. Thus, it is not necessary to configure the apparatus using a specialized and expensive machine as in the case where the apparatus is used, and the apparatus can be configured using a simple and inexpensive machine.
- the parameter calculation means may convert the pulse wave amplitude of the pulse wave waveform obtained from the biological information, the pulse wave height maximum value, and the pulse waveform obtained from the biological information to the second floor. At least one of the waveform component ratio of the differentiated acceleration pulse wave waveform, the acceleration pulse wave amplitude, and the pulse rate is calculated as a parameter, and the estimation means is based on the variation of the parameter calculated by the parameter calculation means. In addition, it is preferable to estimate the thermal sensation of the user.
- the parameter calculating means calculates the waveform component ratio cZa of the acceleration pulse wave waveform based on the time-series data, and the estimating means
- the waveform component ratio cZa of the acceleration pulse waveform increases, the user's thermal sensation changes to a neutral state force, a cold state, or a neutral state force, a hot state.
- the waveform component ratio cZa of the acceleration pulse waveform decreases, the thermal sensation of the user changes from the cold state to the neutral state or from the hot state to the neutral state, thereby improving the thermal sensation. It is preferable to estimate.
- the parameter calculation unit calculates a waveform component ratio cZa of the acceleration pulse waveform based on the time-series data, and the estimation unit includes the acceleration pulse wave
- the waveform component ratio cZa of the waveform increases, it is estimated that the user's thermal sensation has changed from a hot state to a neutral state or a neutral state force cold state and the thermal sensation has deteriorated. If the waveform component ratio cZa of the wave waveform decreases, it can be assumed that the user's thermal sensation has changed to a cold state force or a neutral state force, or a neutral state force hot state, and the thermal sensation has improved. preferable.
- the thermal control is given to improve the thermal sensation of the user, and when the thermal sensation is estimated to be improved, the current control is performed.
- Heat and cold stimulation can be applied to maintain the temperature.
- the equipment that constitutes the user's living environment for example, the air conditioning equipment, so that the user's thermal sensation is neither hot nor cold.
- the parameter calculation means may determine the pulse wave amplitude or the pulse wave height maximum value and the acceleration pulse wave wave based on the time-series data.
- the waveform component ratio cZa of the shape is calculated, and the estimating means increases the waveform component ratio cZa of the acceleration pulse wave waveform and increases the pulse wave amplitude or the maximum pulse wave wave height!] It is estimated that the thermal sensation of the heat has changed from the neutral state to the hot state, the waveform component ratio cZa of the acceleration pulse waveform decreases, and the pulse wave amplitude or the maximum pulse wave height increases It is assumed that the user's thermal sensation has changed from a cold state to a neutral state.
- the waveform component ratio cZa of the acceleration pulse wave waveform increases and the pulse wave amplitude or the maximum pulse wave height maximum value decreases, the user's thermal sensation goes from a neutral state to a cold state.
- the waveform component ratio cZa of the acceleration pulse wave waveform is reduced and the pulse wave amplitude or the pulse wave height maximum value is reduced, the user feels hot and cool and the state force is also It is preferable to estimate that it has changed in the direction of the neutral state.
- the pulse wave amplitude or pulse wave height maximum value and the waveform component ratio cZa of the acceleration pulse wave waveform are calculated based on the time series data. Then, if the waveform formation ratio cZa of the acceleration pulse wave waveform increases and the pulse wave amplitude or pulse wave height maximum value increases!], The user's thermal sensation changes toward the neutral state force hot state It is estimated to be. In addition, if the waveform component ratio cZa of the acceleration pulse wave waveform decreases and the pulse wave amplitude or pulse wave height maximum value increases, it is estimated that the user's thermal sensation has changed toward the cold state force neutral state. .
- the waveform component ratio cZa of the acceleration pulse wave waveform increases and the pulse wave amplitude or pulse wave height maximum value decreases, it is estimated that the user's thermal sensation has changed toward the neutral state force cold state.
- the waveform component ratio cZa of the acceleration pulse wave waveform decreases and the pulse wave amplitude or pulse wave height maximum value decreases, it is estimated that the user's thermal sensation has changed from a hot state to a neutral state.
- the thermal sensation is estimated using two types of parameters: the waveform component ratio cZa of the acceleration pulse wave waveform and the pulse wave amplitude or pulse wave peak maximum value.
- the user's thermal sensation can be accurately estimated. Since the stimulus given to the user is generated based on the estimation result, the user's thermal feeling can be surely led to an appropriate state that is neither hot nor cold.
- the parameter calculation means may determine the acceleration pulse wave amplitude, the waveform component ratio bZa of the acceleration pulse wave waveform, and the acceleration pulse wave waveform based on the time-series data. At least one of the waveform component ratio dZa of the acceleration pulse wave amplitude, the waveform component ratio bZa of the acceleration pulse waveform, and the waveform component ratio dZa of the acceleration pulse waveform If at least one of them increases, it is estimated that the user's thermal sensation has changed from a neutral state to hot !, changed in the direction of the state, or cold !, changed from the state to the neutral state, and the acceleration pulse Wave amplitude, waveform of the acceleration pulse waveform When at least one of the component ratio bZa and the waveform component ratio dZa of the acceleration pulse waveform decreases, the user's thermal sensation has changed from a neutral state force to a cold state, or from a hot state to a neutral state I prefer to have changed.
- At least one of the acceleration pulse wave amplitude, the waveform component ratio bZa of the acceleration pulse waveform, and the waveform component ratio dZa of the acceleration pulse waveform is calculated based on the time series data. Is done.
- the user's thermal sensation is in a neutral state force Hot state direction Or cold state force is estimated to have changed in the direction of neutrality.
- the user's thermal sensation is in the direction of the neutral state force cold state.
- Changed or hot condition Force is estimated to have changed in the direction of neutrality.
- the user can The change in thermal sensation can be estimated, and the generation of stimulation can be appropriately controlled according to the estimation result.
- the parameter calculating means calculates the first parameter related to biological information by performing chaos analysis on the time-series data. And second parameter calculating means for calculating a second parameter related to biological information based on the change in the time series data, wherein the estimating means is calculated by the first parameter calculating means.
- First estimating means for estimating the user's comfort based on the first parameter, and second estimating the user's comfort based on the second parameter calculated by the second parameter calculating means A plurality of the first parameter calculation means, a plurality of the second parameter calculation means, or at least one of the first norometer calculation means and at least one of the above-mentioned estimation means.
- 2 further includes a determination unit that determines whether or not the estimation results obtained by the first estimation unit or the second estimation unit all match, and the stimulation control unit includes: Based on the estimation results determined to match, Prefer to control the development.
- the first parameter calculation means calculates the first parameter related to biological information by performing chaos analysis on the time-series data, and the first parameter calculated by the first estimation means. Based on this, the user's comfort is estimated. Also, the second parameter calculation means calculates the second parameter relating to the biological information based on the change in the time series data, and the second parameter calculated by the first estimation means is calculated. Based on this, the user's comfort is estimated.
- the environmental control device includes a plurality of first parameter calculation means, a plurality of second parameter calculation means, or at least one first parameter calculation means and at least one second parameter calculation means. Is provided. When it is determined whether or not the forces obtained by the first estimation means or the second estimation means all match, and it is determined that all the estimation results match, the stimulus given to the user is determined based on the estimation results. Generation is controlled.
- the user's thermal sensation is simultaneously estimated based on each of a plurality of parameters, and the thermal sensation is determined by comparing the multiple estimation results.
- Thermal sensation can be accurately estimated. Even if the parameters change due to factors other than changes in the thermal environment, the control details are appropriately changed, so that it is possible to avoid discomfort to the user and always provide good comfort. A feeling can be given to the user.
- the stimulus output means when a stimulus is output by a stimulus output unit that outputs a stimulus to a user, the stimulus output means outputs a stimulus output signal indicating that the stimulus has been output. Output to the estimation means, and the estimation means
- the parameter calculation unit calculates a parameter force extracted at predetermined time intervals for the parameter variation. According to this configuration, it is possible to grasp the variation in the user's response to the stimulus. In addition, by estimating the comfort based on the user's response to the stimulus, and determining and outputting the stimulus content based on the estimation result, it is possible to cope with individual differences, ensuring a comfortable feeling for the user. You can feel it.
- the estimating means may provide a user comfort when the change in the parameter is within a predetermined first range indicating that the user's comfort is not changed. It is preferable to output a stimulus output command for improving the feeling of comfort to the stimulus control means, assuming that the feeling changes.
- the estimation means may have a predetermined second value that indicates that the variation in the parameter is different from the first range and that the user's comfort is improved. If it is within the range, it is preferable to estimate that the user's comfort is improved, and to output a stimulus output command for maintaining the feeling of comfort for the stimulus control means.
- the user's comfort is improved by using the principle found by the present inventors that there is a correlation between the fluctuation of the parameter for evaluating the pulse wave and the user's comfort.
- the improvement in feeling can be accurately estimated.
- a stimulus that maintains the comfort level is output. A feeling of suitability can be maintained.
- the estimating means may be a predetermined third parameter that indicates that the variation in the parameter is different from the second range, and that the user's comfort is reduced. If it is within the range, it is assumed that the user's feeling of comfort has decreased, and a stimulus output command for improving the feeling of comfort is output to the stimulus control means, and the variation of the parameter is the first to third. If it does not belong to any of the above ranges, it is preferable that the user is assumed to be in a dangerous state and the system is brought to an emergency stop.
- the estimating means when the parameter variation falls within the first range, the estimating means outputs a stimulus output command so that the parameter variation falls within the second range.
- a stimulus output command for stopping the stimulus is output, and then the change in the parameter enters the first range again and continues for a certain period. If it is within the first range, it is estimated that the user has adapted to the stimulus, and the stimulus output command output immediately before stopping the stimulus is output to the stimulus control means again. Is preferred.
- the parameter calculating means calculates a first parameter for evaluating the time-series digital pulse wave and a second parameter different from the first parameter, Preferably, the estimating means estimates a thermal sensation of the user based on a change in the first parameter and a change in the second parameter.
- the first and second parameters which are two types of parameters for evaluating the pulse wave, are extracted, and the fluctuation of the first and second parameters and the thermal sensation of the user
- the thermal sensation of the user has been estimated using the principle that has been taken out, so the power of changing the thermal sensation toward the hot state is cold It is possible to accurately estimate the thermal sensation of the user, such as whether it has changed in the direction of the state or in the direction of the neutral state.
- the estimation unit estimates a thermal sensation of the user based on a stimulus content given to the user and a change in the parameter.
- the user's thermal sensation is estimated based on fluctuations in pulse wave parameters and the stimulation content such as the type and intensity of stimulation such as thermal stimulation or cold stimulation. Therefore, it is possible to accurately estimate the user's thermal sensation, such as whether the thermal sensation has changed in the hot state, the cold sensation, the neutrality, or the neutral state.
- the environmental control device further includes a temperature measuring means for measuring the temperature of the place where the user is located, and the estimating means includes the parameter variation and the temperature measuring means. It is preferable to estimate the thermal sensation of the user based on the temperature measurement result obtained by the above.
- the user's thermal sensation is estimated based on the fluctuation of the pulse wave parameter, whether the temperature at the location where the user is located has decreased, and the result. Therefore, it is possible to accurately estimate the user's thermal sensation, such as whether the user's thermal sensation has changed in the hot state, whether it has changed in the cold state, or in the neutral state. It can be done.
- the parameter is a waveform component ratio of an acceleration pulse wave obtained by second-order differentiation of the pulse waveform obtained from the time series data
- the estimation means When the waveform component ratio of the acceleration pulse wave decreases, the user's thermal sensation changes from cold to moderate
- the thermal sensation of the user is neutral It is preferable to assume that the cold feeling or the neutral state power changes to the hot condition direction and the thermal feeling is bad.
- the waveform component ratio of the acceleration pulse wave among the various pulse wave parameters is used as a parameter, so that complicated processing is not required and the system can be realized with a simple configuration. .
- the direction of change in the user's thermal sensation is estimated, the user's response to the stimulus can be extracted more reliably.
- the first parameter is a waveform component ratio of an acceleration pulse wave obtained by second-order differentiation of the pulse waveform obtained from the time-series data force
- the second parameter is ,
- the estimation means includes the acceleration
- the user's thermal sensation is hot. Estimated that the direction of neutrality has changed from the previous When the waveform component ratio of the acceleration pulse wave increases and the maximum value of the pulse height of the acceleration pulse wave or the maximum value of the pulse wave height increases, the user's thermal sensation changes from a neutral state to a hot state. If the waveform component ratio of the acceleration pulse wave is increased and the maximum value of the pulse height of the acceleration pulse wave or the maximum value of the pulse wave height is decreased, the user's thermal sensation is It is preferable to estimate that the state has changed from neutral to cold!
- the waveform component ratio of the acceleration pulse wave obtained by differentiating the pulse waveform obtained from the pulse wave data twice among the many pulse wave parameters is set as the first parameter, and the acceleration pulse wave Since the maximum value of the wave height or the maximum value of the pulse wave height is the second parameter, complicated processing is not required and the system can be realized with a simple configuration.
- the change in the parameter component of the acceleration pulse wave, which is the parameter, and the maximum value of the pulse height of the acceleration pulse wave, or the pulse wave height Since the direction of change in the user's thermal sensation is estimated, the user's response to the stimulus can be extracted more reliably.
- the parameter is a waveform component ratio of an acceleration pulse wave obtained by second-order differentiation of the pulse waveform obtained from the time series data
- the estimation means includes When the waveform component ratio of the acceleration pulse wave is decreased and the stimulus content is a kind of stimulus that improves the cool feeling and the intensity of the stimulus is increased, or the waveform component ratio of the acceleration pulse wave is If the stimulus content is a kind of stimulus that improves the sense of warmth and the intensity of the stimulus is reduced, it is assumed that the user's sense of coolness has changed from a hot state to a neutral state.
- the waveform component ratio of the acceleration pulse wave is reduced and the stimulus content is a kind of stimulus that improves the cooling sensation and the intensity of the stimulus is reduced, or the waveform component ratio of the acceleration pulse wave is Stimulus seeds that are reduced and the stimulus content improves warmth And the intensity of the stimulus is increased, the user's thermal sensation is assumed to have changed from the cold state to the neutral state, the waveform component ratio of the acceleration pulse wave increased, and the stimulus content Is the type of stimulus that improves the cool sensation and the intensity of the stimulus increases, or the waveform component ratio of the acceleration pulse wave increases, and the stimulus content increases the sense of warmth.
- the waveform component ratio of the acceleration pulse wave increases, and the stimulus content Is a type of stimulus that improves the sensation of coolness and the intensity of the stimulus is reduced, or the waveform component ratio of the acceleration pulse wave increases and the type of stimulus that improves the sense of warmth If the intensity of the stimulus is increased, Thermal sensation of The the heat from the neutral state!, Preferred to estimated to have changed in the direction of the state U ,.
- the estimation unit calculates a differential value of the parameter and estimates a user's thermal sensation based on the calculated differential value. This According to the configuration, the differential force of the waveform component ratio of the acceleration pulse wave, which is a meter, is estimated, and the user's thermal sensation is estimated. Therefore, the user's reaction to the stimulus can be extracted more reliably.
- the estimating means calculates a differential value of the first and second parameters to estimate a user's thermal sensation.
- the differential value of the waveform component ratio of the acceleration pulse wave that is the first parameter and the maximum value of the pulse height of the acceleration pulse wave that is the second parameter or the differential value of the maximum value of the pulse wave height Since the user's thermal sensation is estimated based on the value, the user's reaction to the stimulus can be extracted more reliably.
- the estimation means determines that the thermal sensation of the user has not changed when the variation of the parameter is within a predetermined range, and outputs a stimulus output command. Preferably not. According to this configuration, it is possible to reduce frequent changes in the stimulation content and estimation processing due to slight fluctuations in the meter.
- the estimating means may be configured such that the variation of the first parameter is within a predetermined first range, or the variation of the second parameter is a predetermined second. If it is within the range, it is determined that the user's thermal sensation has not changed, and it is preferable not to output the stimulus output command. According to this configuration, the stimulus due to slight fluctuations in the first and second parameters It is possible to reduce frequent changes and estimation processing of contents.
- the environment control device, the environment control method, the environment control program, and the computer-readable recording medium on which the environment control program is recorded according to the present invention can surely make the user feel comfortable, and further A comfortable state can be maintained.
- an environmental control device, an environmental control method, an environmental control program, and an environmental control program that control equipment constituting a living environment such as air conditioners, lighting equipment, video equipment, and audio equipment. This is useful for a computer-readable recording medium in which a ram is recorded.
Abstract
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JP2007524607A JP4954879B2 (ja) | 2005-07-11 | 2006-07-06 | 環境制御装置、環境制御方法、環境制御プログラム及び環境制御プログラムを記録したコンピュータ読み取り可能な記録媒体 |
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JP2009142634A (ja) * | 2007-12-12 | 2009-07-02 | Inst For Information Industry | 情緒を感知しリラックスさせるシステムおよびその方法 |
JP2011521764A (ja) * | 2008-06-06 | 2011-07-28 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 被験者における望ましい状態を求める方法 |
CN103228203A (zh) * | 2010-12-03 | 2013-07-31 | 皇家飞利浦电子股份有限公司 | 睡眠干扰监视装置 |
JP2015102884A (ja) * | 2013-11-21 | 2015-06-04 | 株式会社明電舎 | 時系列データの解析方法及び時系列データの異常監視装置 |
WO2021107053A1 (ja) | 2019-11-26 | 2021-06-03 | ダイキン工業株式会社 | 機械学習装置、及び、環境調整装置 |
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Also Published As
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US8140191B2 (en) | 2012-03-20 |
JPWO2007007632A1 (ja) | 2009-01-29 |
JP4954879B2 (ja) | 2012-06-20 |
US20090276062A1 (en) | 2009-11-05 |
KR20080033360A (ko) | 2008-04-16 |
CN101218474A (zh) | 2008-07-09 |
CN101218474B (zh) | 2011-04-06 |
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