CA2457901A1 - Air quality monitoring and space management system coupled to a private communications network - Google Patents
Air quality monitoring and space management system coupled to a private communications network Download PDFInfo
- Publication number
- CA2457901A1 CA2457901A1 CA002457901A CA2457901A CA2457901A1 CA 2457901 A1 CA2457901 A1 CA 2457901A1 CA 002457901 A CA002457901 A CA 002457901A CA 2457901 A CA2457901 A CA 2457901A CA 2457901 A1 CA2457901 A1 CA 2457901A1
- Authority
- CA
- Canada
- Prior art keywords
- air quality
- data
- sensor
- communications network
- microprocessor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0073—Control unit therefor
- G01N33/0075—Control unit therefor for multiple spatially distributed sensors, e.g. for environmental monitoring
Abstract
An air quality monitoring system (20) at a site having a private communications network (22) adapted to carry data traffic. The air quality monitoring system (20) includes at least one sensor assembly (40) programmed to collect air quality data at the site. The sensor assembly (40) includes at least one air quality sensor adapted to measure a level of an air quality attribute. The air quality sensor is coupled to a microprocessor and a data storage device. A communication device couples the microprocessor to the private communications network (22). A public communications network (30) is coupled to the private communications network (22). An archiving and processing system at a remote data collection site is coupled to the public communications network (22). The archiving and processing system includes a controller programmed to automatically store air quality data in the database from one or more sensor assemblies.
Claims (27)
1. An air quality monitoring system at a site having a private communications network adapted to carry data traffic, the air quality monitoring system comprising:
at least one sensor assembly programmed to collect air quality data at the site, the sensor assembly comprising:
at least one air quality sensor adapted to measure a level of an air quality attribute, the air quality sensor being coupled to a microprocessor and a data storage device;
a communications device coupling the microprocessor to the private communications network;
a public communications network coupled to the private communications network;
an archiving and processing system at a remote data collection site comprising a controller programmed to automatically acquire over the public communications network air quality data from one or more sensor assemblies and to automatically store air quality data in a database.
at least one sensor assembly programmed to collect air quality data at the site, the sensor assembly comprising:
at least one air quality sensor adapted to measure a level of an air quality attribute, the air quality sensor being coupled to a microprocessor and a data storage device;
a communications device coupling the microprocessor to the private communications network;
a public communications network coupled to the private communications network;
an archiving and processing system at a remote data collection site comprising a controller programmed to automatically acquire over the public communications network air quality data from one or more sensor assemblies and to automatically store air quality data in a database.
2. The system of claim 1 wherein the at least one air quality sensor comprises a plurality of air quality sensors adapted to measure different air quality attributes.
3. The system of claim 1 wherein each sensor assembly comprises a sensor assembly identification number.
4. The system of claim 1 wherein air quality data for a particular site is associated with a site identification number.
5. The system of claim 1 wherein the microprocessor is programmed to convert sensor data to air quality data.
6. The system of claim 1 wherein the microprocessor is programmed to convert sensor data to an industrial control protocol.
7. The system of claim 1 wherein the microprocessor is coupled to an HVAC controller through the private communications network.
The system of claim 1 wherein the microprocessor is coupled directly to an HVAC controller.
9. The system of claim 1 wherein the microprocessor is programmed to systematically collect air quality data from the air quality sensors at defined intervals and to transmit the air quality data over the private communications network and the public communications network to the archiving and processing system.
10. The system of claim 1 wherein the microprocessor is programmed to systematically collect air quality data from the air quality sensors at defined intervals and to store the air quality data in the data storage device.
11. The system of claim 1 wherein the data storage device comprises sufficient storage capacity to store air quality data for about one week.
12. The system of claim 1 wherein the data storage device comprises an error correction table for one or more of the air quality sensors.
13. The system of claim 1 wherein the data storage device comprises a calibration table for one or more of the air quality sensors.
14. The system of claim 1 wherein the microprocessor is programmed to adjust sensor data from a first air quality sensor in response to sensor data collected by a second air quality sensor.
15. The system of claim 1 wherein the microprocessor is programmed to modify an error correction table for a first air quality sensor in response to sensor data from a second air quality sensor.
16. The system of claim 1 comprising a communications interface programmed to convert air quality data transmitted by the communications device to a protocol compatible with the private communications network.
17. The system of claim 1 comprising a remote site coupled to the database through the public communications network.
18. The system of claim 1 wherein the archiving and processing system is programmed to send an alert signal when air quality data is outside defined operating parameters.
19. The system of claim 18 wherein the alert comprises one or more of an e-mail message, an automated telephone message, an automated fax, or an automated pager message.
20. The system of claim 1 wherein the controller is programmed to calculate trends in air quality data.
21. The system of claim 1 wherein the archiving and processing system is programmed to send an alert signal when a calculated trend predicts that air quality data will be outside defined operating parameters within a defined time interval.
22. The system of claim 1 wherein the microprocessor is adapted to combine air quality data from two or more air quality sensors to provide an air quality index.
23. The system of claim 1 wherein the archiving and processing system is adapted to combine air quality data from two or more air quality sensors to provide an air quality index.
24. The system of claim 1 wherein the sensor is adapted to provide a relative indication of air quality based upon the presence of a plurality of VOC's.
25. An air quality monitoring system at a site having a private communications network adapted to carry data traffic, the air quality monitoring system comprising:
at least one sensor assembly programmed to collect air quality data at the site, the sensor assembly comprising:
at least one air quality sensor adapted to measure a level of an air quality attribute, the air quality sensor coupled to a microprocessor and a data storage device;
a communications device coupling the microprocessor to the private communications network;
an archiving and processing system coupled to the private communications network and located at the site but remote from the sensor assemblies comprising a controller programmed to automatically store air quality data from the sensor assemblies in a database.
at least one sensor assembly programmed to collect air quality data at the site, the sensor assembly comprising:
at least one air quality sensor adapted to measure a level of an air quality attribute, the air quality sensor coupled to a microprocessor and a data storage device;
a communications device coupling the microprocessor to the private communications network;
an archiving and processing system coupled to the private communications network and located at the site but remote from the sensor assemblies comprising a controller programmed to automatically store air quality data from the sensor assemblies in a database.
26. A method for monitoring air quality comprising the steps of:
coupling one or more sensor assemblies programmed to collect air quality data to a private communications network located at a site;
measuring the level of one or more air quality attributes using air quality sensors in the sensor assemblies;
converting sensor data to air quality data;
uploading the air quality data to the private communications network;
transmitting the air quality data over a public communications network to a second private communications network;
automatically storing the air quality data from one or more sensor assemblies in a database on the second private communications network; and providing access to the air quality data in the database through the public communications network.
coupling one or more sensor assemblies programmed to collect air quality data to a private communications network located at a site;
measuring the level of one or more air quality attributes using air quality sensors in the sensor assemblies;
converting sensor data to air quality data;
uploading the air quality data to the private communications network;
transmitting the air quality data over a public communications network to a second private communications network;
automatically storing the air quality data from one or more sensor assemblies in a database on the second private communications network; and providing access to the air quality data in the database through the public communications network.
27. A sensor assembly for use at a site having a private communications network that is adapted to carry data traffic, the sensor assembly comprising:
at least one air quality sensor adapted to measure a level of an air quality attribute;
a microprocessor coupled to the air quality sensor and to a data storage device, the microprocessor programmed to convert sensor data to a protocol compatible with the private communications network; and a communications device coupling the microprocessor to the private communications network.
at least one air quality sensor adapted to measure a level of an air quality attribute;
a microprocessor coupled to the air quality sensor and to a data storage device, the microprocessor programmed to convert sensor data to a protocol compatible with the private communications network; and a communications device coupling the microprocessor to the private communications network.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32210701P | 2001-09-11 | 2001-09-11 | |
| US60/322,107 | 2001-09-11 | ||
| US10/138,111 US6782351B2 (en) | 2001-09-11 | 2002-05-01 | Air quality monitoring and space management system coupled to a private communications network |
| US10/138,111 | 2002-05-01 | ||
| PCT/US2002/028801 WO2003023646A1 (en) | 2001-09-11 | 2002-09-10 | Air quality monitoring and space management system coupled to a private communications network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2457901A1 true CA2457901A1 (en) | 2003-03-20 |
| CA2457901C CA2457901C (en) | 2011-02-08 |
Family
ID=26835873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2457901A Expired - Fee Related CA2457901C (en) | 2001-09-11 | 2002-09-10 | Air quality monitoring and space management system coupled to a private communications network |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6782351B2 (en) |
| CA (1) | CA2457901C (en) |
| MX (1) | MXPA04002293A (en) |
| WO (1) | WO2003023646A1 (en) |
Families Citing this family (60)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7940716B2 (en) | 2005-07-01 | 2011-05-10 | Terahop Networks, Inc. | Maintaining information facilitating deterministic network routing |
| US7049824B2 (en) * | 2003-03-27 | 2006-05-23 | International Business Machines Corporation | Differential particulate detection system for electronic devices |
| US8150959B1 (en) | 2003-11-17 | 2012-04-03 | Rockwell Automation Technologies, Inc. | Systems and methods for notifying multiple hosts from an industrial controller |
| US7721273B1 (en) | 2003-11-17 | 2010-05-18 | Rockwell Automation Technologies, Inc. | Controller equipment model systems and methods |
| US20050233063A1 (en) * | 2004-04-15 | 2005-10-20 | Weiler Jeff L | Coating operation pollutant emission measurement and recording system and method |
| KR100595214B1 (en) * | 2004-05-21 | 2006-07-03 | 엘지전자 주식회사 | Apparatus and Method for Controlling Air Cleaner in air-conditioning system |
| US7142107B2 (en) | 2004-05-27 | 2006-11-28 | Lawrence Kates | Wireless sensor unit |
| AU2006218420C1 (en) * | 2005-03-04 | 2009-06-25 | Purechoice, Inc. | Air quality monitoring method and system |
| US20080169934A1 (en) * | 2006-08-11 | 2008-07-17 | Steve Lang | Portable gas detector |
| US20080103722A1 (en) * | 2006-09-07 | 2008-05-01 | Scott Aldern | On-board temperature/humidity sensor |
| US8155662B2 (en) * | 2007-02-19 | 2012-04-10 | Microsoft Corporation | Self-configuring wireless network location system |
| US7516049B2 (en) * | 2007-02-19 | 2009-04-07 | Microsoft Corporation | Wireless performance analysis system |
| US7676523B2 (en) * | 2007-04-20 | 2010-03-09 | Sap Ag | Method and system for managing data quality |
| US7676522B2 (en) * | 2007-04-20 | 2010-03-09 | Sap Ag | Method and system for including data quality in data streams |
| WO2009140669A2 (en) | 2008-05-16 | 2009-11-19 | Terahop Networks, Inc. | Securing, monitoring and tracking shipping containers |
| CN102282616B (en) | 2009-01-14 | 2015-04-22 | 马维尔国际贸易有限公司 | Method and apparatus for determining a location of a defect on a storage medium |
| US8483850B2 (en) * | 2009-05-21 | 2013-07-09 | Lennox Industries Inc. | HVAC system, a method for determining a location of an HVAC unit with respect to a site and an HVAC controller |
| EP2916622B1 (en) | 2009-10-08 | 2019-09-11 | Delos Living, LLC | Led lighting system |
| US8860402B2 (en) * | 2009-10-16 | 2014-10-14 | Emprimus, Llc | Electromagnetic field detection systems and methods |
| CN102812501B (en) | 2009-12-29 | 2015-11-25 | 加利福尼亚大学董事会 | Multimodal Climate Sensor Network |
| US8712614B2 (en) * | 2010-04-29 | 2014-04-29 | Andrew Parker | System, method, and computer readable medium for a force-based wheelchair joystick |
| US9279878B2 (en) | 2012-03-27 | 2016-03-08 | Microsoft Technology Licensing, Llc | Locating a mobile device |
| MX350468B (en) | 2012-08-28 | 2017-09-07 | Delos Living Llc | Systems, methods and articles for enhancing wellness associated with habitable environments. |
| JP2015531516A (en) * | 2012-09-12 | 2015-11-02 | パーティクルズ プラス インコーポレイテッド | Thermostatic device with particulate matter sensor |
| US9612121B2 (en) | 2012-12-06 | 2017-04-04 | Microsoft Technology Licensing, Llc | Locating position within enclosure |
| EP2763032B1 (en) * | 2013-01-31 | 2016-12-28 | Sensirion AG | Portable electronic device with integrated chemical sensor and method of operating thereof |
| US20140266792A1 (en) * | 2013-03-13 | 2014-09-18 | Raymond & Lae Engineering, Inc. | Universal monitoring system and modular interface and sensor assemblies |
| US10352844B2 (en) | 2013-03-15 | 2019-07-16 | Particles Plus, Inc. | Multiple particle sensors in a particle counter |
| US11579072B2 (en) | 2013-03-15 | 2023-02-14 | Particles Plus, Inc. | Personal air quality monitoring system |
| US9677990B2 (en) | 2014-04-30 | 2017-06-13 | Particles Plus, Inc. | Particle counter with advanced features |
| US10983040B2 (en) | 2013-03-15 | 2021-04-20 | Particles Plus, Inc. | Particle counter with integrated bootloader |
| AU2014257036A1 (en) * | 2013-04-23 | 2015-11-12 | Canary Connect, Inc. | Security and/or monitoring devices and systems |
| CN103698473A (en) * | 2013-12-09 | 2014-04-02 | 广西科技大学 | High-precision indoor environment air quality monitor |
| CN103697936A (en) * | 2013-12-09 | 2014-04-02 | 广西科技大学 | Portable intelligent air quality monitor of indoor environment |
| US20150187194A1 (en) * | 2013-12-29 | 2015-07-02 | Keanu Hypolite | Device, system, and method of smoke and hazard detection |
| AU2015223112B2 (en) | 2014-02-28 | 2020-07-09 | Delos Living Llc | Systems, methods and articles for enhancing wellness associated with habitable environments |
| US10359382B2 (en) * | 2014-04-08 | 2019-07-23 | Dwyer Instruments, Inc. | System method and apparatus for humidity sensor temperature compensation |
| WO2015175304A1 (en) * | 2014-05-11 | 2015-11-19 | Breezometer Ltd. | A system and methods thereof for generation of an air quality score |
| AU2016202287B2 (en) | 2015-01-13 | 2021-04-01 | Delos Living Llc | Systems, methods and articles for monitoring and enhancing human wellness |
| US10222360B1 (en) * | 2015-01-16 | 2019-03-05 | Airviz Inc. | Home air quality analysis and reporting |
| US10408482B2 (en) | 2015-02-11 | 2019-09-10 | Bitfinder, Inc. | Managing environmental conditions |
| US10440118B2 (en) * | 2015-02-19 | 2019-10-08 | At&T Intellectual Property I, L.P. | Scalable homogenized intelligent building data ingest controller |
| US10030398B2 (en) * | 2015-03-10 | 2018-07-24 | Cisco Technology, Inc. | Network-enabled ceiling support structure |
| EP3504942A4 (en) | 2016-08-24 | 2020-07-15 | Delos Living LLC | Systems, methods and articles for enhancing wellness associated with habitable environments |
| US11112395B2 (en) * | 2017-02-24 | 2021-09-07 | Particles Plus, Inc. | Networked air quality monitoring system |
| US10810869B2 (en) * | 2017-02-24 | 2020-10-20 | Particles Plus, Inc. | Crowdsourced air quality monitoring system |
| US10808955B2 (en) * | 2017-03-16 | 2020-10-20 | Eeshan Tripathii | Environmentally efficient smart home air-quality network system |
| DE102017209474A1 (en) * | 2017-06-06 | 2018-12-06 | Robert Bosch Gmbh | Method and device for measuring air quality |
| WO2019046580A1 (en) | 2017-08-30 | 2019-03-07 | Delos Living Llc | Systems, methods and articles for assessing and/or improving health and well-being |
| WO2019173381A1 (en) * | 2018-03-06 | 2019-09-12 | Applied Particle Technology, Inc. | Wireless exposure monitor |
| WO2020055872A1 (en) | 2018-09-14 | 2020-03-19 | Delos Living Llc | Systems and methods for air remediation |
| US11592427B2 (en) | 2018-10-01 | 2023-02-28 | Brown University | Multi-parametric machine olfaction |
| KR102163858B1 (en) * | 2018-12-07 | 2020-10-12 | 엘지전자 주식회사 | air quality detector |
| KR102184545B1 (en) | 2018-12-07 | 2020-11-30 | 엘지전자 주식회사 | air quality detector |
| US10828986B2 (en) * | 2019-01-07 | 2020-11-10 | Mann+Hummel Gmbh | Cabin air filter element monitoring and analysis system and associated methods |
| WO2020176503A1 (en) | 2019-02-26 | 2020-09-03 | Delos Living Llc | Method and apparatus for lighting in an office environment |
| WO2020198183A1 (en) | 2019-03-25 | 2020-10-01 | Delos Living Llc | Systems and methods for acoustic monitoring |
| US11719677B1 (en) * | 2019-09-06 | 2023-08-08 | Alarm.Com Incorporated | Air quality sensors |
| CN111322719B (en) * | 2020-03-17 | 2021-12-07 | 思拟环保科技(上海)有限公司 | Building heating ventilation air-conditioning control system and method and wireless Mesh communication equipment |
| CN113821062A (en) * | 2021-06-25 | 2021-12-21 | 湘南学院 | Intelligent temperature control system for communication network engineering |
Family Cites Families (57)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026263A (en) * | 1976-01-02 | 1977-05-31 | Boyd Charles M | Fireplace systems |
| US4049196A (en) * | 1976-03-08 | 1977-09-20 | Bergami Jr Samuel S | Fireplace heater, circulator, and humidifier system |
| US4019677A (en) * | 1976-06-04 | 1977-04-26 | Dotschkal Anton A | Heating system for building structures |
| US4389620A (en) | 1980-01-29 | 1983-06-21 | Sony Corporation | Current transfer amplifier |
| US4374515A (en) * | 1980-03-24 | 1983-02-22 | Robert Conrad | Fireplace air distribution system |
| CH662170A5 (en) | 1983-12-15 | 1987-09-15 | Martin Frei | CHEMINEE SYSTEM WITH WARM AIR GENERATION. |
| US4528898A (en) | 1984-03-05 | 1985-07-16 | Imec Corporation | Fume hood controller |
| US4773311A (en) | 1986-11-24 | 1988-09-27 | Phoenix Controls Corporation | Make up air controller for use with fume hood systems |
| US4823290A (en) | 1987-07-21 | 1989-04-18 | Honeywell Bull Inc. | Method and apparatus for monitoring the operating environment of a computer system |
| US5311451A (en) | 1987-11-06 | 1994-05-10 | M. T. Mcbrian Company, Inc. | Reconfigurable controller for monitoring and controlling environmental conditions |
| US4893551A (en) | 1988-05-19 | 1990-01-16 | Phoenix Controls Corporation | Fume hood sash sensing apparatus |
| US5001463A (en) | 1989-02-21 | 1991-03-19 | Hamburger Robert N | Method and apparatus for detecting airborne allergen particulates |
| US5400246A (en) | 1989-05-09 | 1995-03-21 | Ansan Industries, Ltd. | Peripheral data acquisition, monitor, and adaptive control system via personal computer |
| US5017989A (en) | 1989-12-06 | 1991-05-21 | Xerox Corporation | Solid state radiation sensor array panel |
| US5553094A (en) | 1990-02-15 | 1996-09-03 | Iris Systems, Inc. | Radio communication network for remote data generating stations |
| JPH0415720A (en) | 1990-05-10 | 1992-01-21 | Internatl Business Mach Corp <Ibm> | Control circuit unit and data processor |
| US5240455A (en) | 1991-08-23 | 1993-08-31 | Phoenix Controls Corporation | Method and apparatus for controlling a fume hood |
| US5255556A (en) | 1991-10-15 | 1993-10-26 | Tec-Way Air Quality Products, Inc. | Air quality indicator and control for air quality machine |
| US5304093A (en) | 1992-01-17 | 1994-04-19 | Phoenix Controls Corporation | Method and apparatus for controlling a fluid flow valve |
| US5356594A (en) | 1992-03-03 | 1994-10-18 | Thermo Environmental Instruments Inc. | Portable volatile organic compound monitoring system |
| FI90710C (en) | 1992-05-29 | 1994-03-10 | Icl Personal Systems Oy | Procedure for Adapting a TCP / IP Software to a Local Area Network to a Remote Connection |
| US5251665A (en) | 1992-07-20 | 1993-10-12 | Phoenix Controls Corporation | Mechanism for operating multiple air flow control valves |
| US5406073A (en) | 1993-01-25 | 1995-04-11 | Phoenix Controls Corporation | System for detecting a movable entity within a selected space |
| US5491473A (en) | 1993-03-31 | 1996-02-13 | Euro Cp S.A.R.L. | System for remote data collecting, method implemented in this system and data collector device |
| US5435779A (en) | 1993-07-02 | 1995-07-25 | Phoenix Controls Corporation | Precision gas flow control by use of coarse and fine control elements |
| US5385505A (en) | 1993-07-02 | 1995-01-31 | Phoenix Controls Corporation | Pressure maintenance system for substantially sealed space |
| DE4335700A1 (en) | 1993-10-20 | 1995-04-27 | Bosch Gmbh Robert | Method and device for monitoring the function of a sensor |
| US5568385B1 (en) | 1994-06-01 | 1999-07-20 | Int Weather Network | Software system for collecting and displaying weather information |
| US5798945A (en) | 1994-06-09 | 1998-08-25 | Chelsea Group Ltd. | Apparatus for building environmental reporting and control |
| US5553006A (en) * | 1994-06-09 | 1996-09-03 | Chelsea Group Ltd. | Method and apparatus for building environmental compliance |
| US5831876A (en) | 1994-08-04 | 1998-11-03 | City Of Scottsdale, An Arizona Municipal Coporation | Method for monitoring regional air quality |
| US5545086A (en) | 1994-08-18 | 1996-08-13 | Phoenix Controls Corporation | Air flow control for pressurized room facility |
| US5520328A (en) | 1994-11-03 | 1996-05-28 | Carrier Corporation | System for providing integrated zone indoor air quality control |
| WO1997002683A1 (en) | 1995-07-05 | 1997-01-23 | Siemens Aktiengesellschaft | Arrangement (iwf) for the bidirectional connection of an elan and a cls wide-area network |
| US5687098A (en) | 1995-10-30 | 1997-11-11 | Fisher Controls International, Inc. | Device data acquisition |
| US5831848A (en) | 1995-11-17 | 1998-11-03 | Phoenix Controls Corporation | Distributed environmental process control system |
| US5971067A (en) | 1996-02-15 | 1999-10-26 | Carrier Corporation | Air quality control system |
| US6122281A (en) | 1996-07-22 | 2000-09-19 | Cabletron Systems, Inc. | Method and apparatus for transmitting LAN data over a synchronous wide area network |
| US5944823A (en) | 1996-10-21 | 1999-08-31 | International Business Machines Corporations | Outside access to computer resources through a firewall |
| US5892690A (en) * | 1997-03-10 | 1999-04-06 | Purechoice, Inc. | Environment monitoring system |
| US5999973A (en) | 1997-03-28 | 1999-12-07 | Telefonaktiebolaget L M Ericsson (Publ) | Use of web technology for subscriber management activities |
| US6125710A (en) * | 1997-04-15 | 2000-10-03 | Phoenix Controls Corporation | Networked air measurement system |
| US5938823A (en) | 1997-04-18 | 1999-08-17 | Carrier Corporation | Integrated electrostatic collection and microwave sterilization for bioaerosol air purification |
| US5978373A (en) | 1997-07-11 | 1999-11-02 | Ag Communication Systems Corporation | Wide area network system providing secure transmission |
| US5924486A (en) * | 1997-10-29 | 1999-07-20 | Tecom, Inc. | Environmental condition control and energy management system and method |
| US6157950A (en) | 1997-12-05 | 2000-12-05 | Encanto Networks, Inc. | Methods and apparatus for interfacing a computer or small network to a wide area network such as the internet |
| US6181681B1 (en) | 1997-12-29 | 2001-01-30 | 3Com Corporation | Local area network media access controller layer bridge |
| US5983890A (en) * | 1998-01-09 | 1999-11-16 | Canadian Gas Research Institute | Fireplace having multi-zone heating control |
| US6188691B1 (en) | 1998-03-16 | 2001-02-13 | 3Com Corporation | Multicast domain virtual local area network |
| US6252689B1 (en) | 1998-04-10 | 2001-06-26 | Aircuity, Inc. | Networked photonic signal distribution system |
| US6539011B1 (en) | 1998-06-10 | 2003-03-25 | Merlot Communications, Inc. | Method for initializing and allocating bandwidth in a permanent virtual connection for the transmission and control of audio, video, and computer data over a single network fabric |
| US6137403A (en) | 1998-12-10 | 2000-10-24 | Phoenix Controls Corporation | Sash sensor and method of sensing a sash using an array of multiplexed elements |
| US6598056B1 (en) * | 1999-02-12 | 2003-07-22 | Honeywell International Inc. | Remotely accessible building information system |
| US6288646B1 (en) * | 1999-08-31 | 2001-09-11 | Air Advice.Com | Allergen detection and air/asthma advice provision |
| US6358374B1 (en) | 1999-12-17 | 2002-03-19 | Carrier Corporation | Integrated photocatalytic and adsorbent technologies for the removal of gaseous contaminants |
| EP1354446B1 (en) * | 2001-01-12 | 2006-04-12 | Novar Marketing Inc. | Small building automation control system |
| US7302313B2 (en) * | 2001-02-07 | 2007-11-27 | Aircuity, Inc. | Air quality monitoring systems and methods |
-
2002
- 2002-05-01 US US10/138,111 patent/US6782351B2/en not_active Expired - Fee Related
- 2002-09-10 MX MXPA04002293A patent/MXPA04002293A/en active IP Right Grant
- 2002-09-10 CA CA2457901A patent/CA2457901C/en not_active Expired - Fee Related
- 2002-09-10 WO PCT/US2002/028801 patent/WO2003023646A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA04002293A (en) | 2005-03-07 |
| WO2003023646A1 (en) | 2003-03-20 |
| US6782351B2 (en) | 2004-08-24 |
| US20030051023A1 (en) | 2003-03-13 |
| CA2457901C (en) | 2011-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2457901A1 (en) | Air quality monitoring and space management system coupled to a private communications network | |
| US11402252B2 (en) | Monitoring remote assets | |
| US5134644A (en) | Data communication device | |
| CN101178833B (en) | High efficient low false alarming rate remote monitoring system and method | |
| US9510066B2 (en) | Collection of telemetry data through a meter reading system | |
| US20100033318A1 (en) | Monitoring and alarming system and method | |
| CN109922450B (en) | Intelligent community property management system | |
| CN101316428A (en) | Repeater monitoring system and method | |
| KR101383301B1 (en) | Field equipment management apparatus and method thereof | |
| CN210271162U (en) | Multi-parameter fire alarm system formed by network of gateways | |
| CN106993007A (en) | Safety production monitoring system based on many intelligent sensing networks | |
| US20100133103A1 (en) | Method and a device for monitoring physical conditions | |
| CN209842836U (en) | Landslide monitoring system based on multi-sensing information fusion | |
| CN201345684Y (en) | Network video monitoring device using short message of mobile telephone for alarm | |
| KR200359799Y1 (en) | Boiler Remote Control and United Management System Using by Internet | |
| CN112887849A (en) | Data communication method for pipe welding power supply equipment | |
| JP2003029824A (en) | Wide area plant management system | |
| JPH07177249A (en) | Simple measurement information gathering and transfer device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |