WO2006126240A1 - An electronic apparatus for the optimised control of the electrical power of a public lighting system and operating method thereof - Google Patents
An electronic apparatus for the optimised control of the electrical power of a public lighting system and operating method thereof Download PDFInfo
- Publication number
- WO2006126240A1 WO2006126240A1 PCT/IT2006/000400 IT2006000400W WO2006126240A1 WO 2006126240 A1 WO2006126240 A1 WO 2006126240A1 IT 2006000400 W IT2006000400 W IT 2006000400W WO 2006126240 A1 WO2006126240 A1 WO 2006126240A1
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- WO
- WIPO (PCT)
- Prior art keywords
- lighting
- time interval
- lamps
- electrical power
- instant
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/40—Controlling the intensity of light discontinuously
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/16—Controlling the light source by timing means
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Definitions
- the present invention relates to an electronic apparatus for controlling the electrical power in a public lighting system, and to the operating method thereof.
- a first control entails regulating the times of supply/interruption of electrical power on the main power supply line in order to vary the time interval in which the lamps are lighted and not lighted according to the season
- the second control entails reducing by a predetermined value the electrical power supplied to the lamps starting from a reduction-start instant, which is delayed by a fixed time interval from the instant when the lamp where lighted, i.e. from the instant in which the supply of electrical power on the power supply line starts.
- the second control is extremely limited and poorly efficient from the viewpoint of the optimisation of energy saving, in that it carries out a power reduction according to a single reduction profile and by a reduction time interval with a fixed duration, which starts with the same delay from the instant power is initially supplied, regardless of the current season.
- the first control changes the time interval of lighting in such a way as to meet seasonal luminosity requirements, and this variation causes a corresponding translation of the power reduction time interval, which being configurable only for one season is not completely adequate to meet the power and luminosity reduction requirements of the remaining three seasons of the year.
- An object of the present invention therefore is to provide an electronic apparatus that is simple and economical and that allows to regulate in optimal, automatic fashion the electrical power supplied to the lamps of a public lighting system according to the current season.
- an electronic apparatus is obtained as indicated in claim 1 and, preferably, in any one of the subsequent claims, depending directly or indirectly on claim 1.
- an operating method of a lighting system is provided as claimed in claim 7 and, preferably, in any one of the subsequent claims, depending directly or indirectly on claim 7.
- FIG. 1 schematically shows a lighting system obtained according to the teachings of the present invention
- FIG. 2 shows a block diagram of the electronic apparatus included in the lighting system shown in Figure 1 ;
- FIG. 3 schematically shows a time interval and a time window associated to the power control implemented by the electronic apparatus shown in Figure 2; - Figures 4 and 5 show respective power modulation functions in two different seasons of the year.
- the number 1 globally designates a lighting system, which is able to light a public area, such as a square, a road, or any other type of area of public utility and, unlike known lighting systems, it is capable of modulating the electrical power used for lighting according to each season of the year.
- the present invention is essentially based on the idea of modulating the power supply of the lighting system 1 according to a series of pre-set modulation functions, which are associated to the respective four seasons of the year and whereof each is defined by a determined power variation law.
- the lighting system 1 essentially comprises a plurality of lamps 2, e.g. high pressure sodium lamps or any other type of similar high intensity discharge lamp, and a main power supply line 3, which is able to supply the lamps 2 with a predetermined electrical power during a time interval AT 1 of lighting/shutting down of the lamps 2 (shown in Figures 3, 4 and 5), which is varied by a power supply device 3a connected upstream of the line 3, according to the seasons of the year.
- lamps 2 e.g. high pressure sodium lamps or any other type of similar high intensity discharge lamp
- main power supply line 3 which is able to supply the lamps 2 with a predetermined electrical power during a time interval AT 1 of lighting/shutting down of the lamps 2 (shown in Figures 3, 4 and 5), which is varied by a power supply device 3a connected upstream of the line 3, according to the seasons of the year.
- the lighting system 1 further comprises a series of electronic apparatuses 4, each of which is able to determine the current season, as a function of the time interval AT 1 , to modulate, instant by instant, the electrical power supplied to a corresponding lamp 2 as a function of the current season thus determined.
- each electronic apparatus 4 essentially comprises a PFC (acronym of Power Factor Corrector) module, a power module 6, a detection module 7, a command module 8, and preferably a filtering module 9.
- the PFC module 5 is connected to the power supply line 3 to receive as an input the electrical power supply, and its function is appropriately to regulate the power factor in such a way as to maintain it above a pre-set minimum value
- the power module 6 can be constituted by an inverter connected downstream of the PFC module 5 to receive the electrical power, and it is provided with a series of internal switching circuits (not shown), which are able to modulate the electrical power supplied to a related lamp 2, according to a command signal
- the filtering module 9 can be preferably defined by a low-pass filter, which is interposed between the power module 6 and the lamp 2 to filter out high frequencies, and eliminate the direct components of the current, potentially harmful to the lamp 2; whilst the detection module 7 can be defined by an electrical measuring circuit, which is connected at the input to the power supply line 3 to output a signal S R ⁇ V indicating the presence/absence of electrical power (voltage or current) on the power supply line 3.
- the command module 8 receives at its input the signal S R1V3 and processes it to output the command signal S COM through which it drives the power module 6 in such a way as to vary the electrical power to be supplied to the lamps 2.
- the command module 8 comprises a memory 10 able to store a first table containing a plurality of numeric values defining a first function F T (AT 1 ) which enables to determine, for each time interval AT 1 of lighting/shutting down, a corresponding season of the year; and a processing device 11 , which serves the purpose of determining the time interval AT 1 as a function of the signal S RJV , and which is able to implement the first function F T (AT 1 ) to determine, on the basis of the calculated time interval AT 1 , the current season, i.e. the season present at the time of lighting.
- a memory 10 able to store a first table containing a plurality of numeric values defining a first function F T (AT 1 ) which enables to determine, for each time interval AT 1 of lighting/shutting down, a corresponding season of the year
- a processing device 11 which serves the purpose of determining the time interval AT 1 as a function of the signal S RJV , and which is able to implement
- the memory 10 further comprises a series of modulation functions Fi( ⁇ T l5 t), each of which is associated to a determined season of the year and indicates for each instant t the value of the power to be supplied to the lamps 2.
- the processing device 11 co-operates with the memory 10 to identify, on the basis of the determined current season, the respective modulation function Fj( ⁇ T l3 t) and implements the latter in such a way as to generate the command signal S CO M which regulates, through the power module 6, the power supplied to the lamps 2.
- Each modulation function Fj(AT 1 ,t) can provide a power regulation according to a linear or non-linear continuous profile, or according to a non-continuous profile within one or more time windows ATd;, each of which can be placed in any position within the lighting/shutting down time interval AT 1 .
- the processing device 11 implementing a modulation function Fj(AT 1 , t) can be able to vary the duration and/or the position of the each time window ⁇ Td; within the time interval AT 1 according to the current season.
- the time window ATd lies between an initial instant Ti and a final instant Tp and the processing device 11 is able to vary the initial instant T 1 of the time window ATd; relative to an initial instant T K of lighting of the lamp 2, according to the determined current season.
- Figures 4 and 5 show by way of example to modulation function stored in the memory 10.
- the first modulation function F 1 (AT 15 Q shown in Figure 4 is associated to the summer season and it entails, starting from the instant Ti, progressively reducing power to a first predetermined value (e.g., 60% of the nominal value) in a first time window ATd 1 , maintaining power to the first predetermined reduced value in a second time window ATd 2 , and progressively increasing power to the nominal value in a third time interval ATd 3 until the final instant T F -
- a first predetermined value e.g. 60% of the nominal value
- the command module 8 receives as an input the signal S R ⁇ V output by the detection module 7 and processes it to determine the time interval ATj. It should be specified that the command module 8 can be able to calculate and store in the memory 10 the time interval AT 1 every day, in order to be able to identify, through the first table, during a subsequent lighting the current season according to the time interval AT 1 calculated and stored the previous day.
- the processing device 11 identifies, through the memory 10, the modulation function according to the current season, and proceeds to implement it in order to command instant by instant through the command signal Sco M the power module 6, thus varying power according to the implemented modulation function.
- the electronic apparatus 4 described above in addition to being extremely simple to construct and hence economical to manufacture, has the great advantage of being able automatically to regulate electrical power specifically for each season of the year, thereby allowing to configure a suitable luminosity profile for each season, whilst reducing energy consumption with respect to the consumption values measured in the lighting systems that use a same power reduction profile for all seasons.
Abstract
An operating method of a lighting system (1) comprising a plurality of lamps (2) able to light a public area, a power supply line (3) able to supply said lamps (2) with a predetermined electrical power during a lighting time interval (AT1), which is variable according to the seasonal periods of the year; said method being characterised in that it comprises the step of determining, each time the lamps (2) are lighted anew, the current seasonal period as a function of the lighting/shutdown time interval (AT1), and of modulating, instant by instant, the electrical power supplied to the lamps (2) as a function of the determined current seasonal period.
Description
Description
An Electronic Apparatus for the Optimised Control of the Electrical Power of a Public Lighting System and Operating Method thereof
Technical Field
The present invention relates to an electronic apparatus for controlling the electrical power in a public lighting system, and to the operating method thereof.
Background Art
As is well known, currently existing public lighting systems comprise a plurality of lamps, typically high intensity discharge lamps, which are appropriately distributed over a public area to be lighted, and a main power supply line able to supply the lamps with the electrical power necessary for their operation.
It is also well known that the operation of the public lighting systems described above is based essentially on two types of control: a first control entails regulating the times of supply/interruption of electrical power on the main power supply line in order to vary the time interval in which the lamps are lighted and not lighted according to the season, whereas the second control entails reducing by a predetermined value the electrical power supplied to the lamps starting from a reduction-start instant, which is delayed by a fixed time interval from the instant when the lamp where lighted, i.e. from the instant in which the supply of electrical power on the power supply line starts.
The systems described above have the great drawback that the second control is extremely limited and poorly efficient from the viewpoint of the optimisation of energy saving, in that it carries out a power reduction according to a single reduction profile and by a reduction time interval with a fixed duration, which starts with the same delay from the instant power is initially supplied, regardless of the current season. At each season, the first control changes the time interval of lighting in such a
way as to meet seasonal luminosity requirements, and this variation causes a corresponding translation of the power reduction time interval, which being configurable only for one season is not completely adequate to meet the power and luminosity reduction requirements of the remaining three seasons of the year.
Disclosure of Invention
An object of the present invention therefore is to provide an electronic apparatus that is simple and economical and that allows to regulate in optimal, automatic fashion the electrical power supplied to the lamps of a public lighting system according to the current season.
According to the present invention, an electronic apparatus is obtained as indicated in claim 1 and, preferably, in any one of the subsequent claims, depending directly or indirectly on claim 1.
According to the present invention, a lighting system as indicated in claim 5 and 6 is obtained.
According to the present invention, an operating method of a lighting system is provided as claimed in claim 7 and, preferably, in any one of the subsequent claims, depending directly or indirectly on claim 7.
Brief Description of the Drawings
The present invention shall now be described with reference to the accompanying drawings, which illustrate a non limiting embodiment thereof, in which:
- Figure 1 schematically shows a lighting system obtained according to the teachings of the present invention;
- Figure 2 shows a block diagram of the electronic apparatus included in the lighting system shown in Figure 1 ;
- Figure 3 schematically shows a time interval and a time window associated to the power control implemented by the electronic apparatus shown in Figure 2;
- Figures 4 and 5 show respective power modulation functions in two different seasons of the year.
Description of the Illustrative Embodiment
With reference to Figure 1 , the number 1 globally designates a lighting system, which is able to light a public area, such as a square, a road, or any other type of area of public utility and, unlike known lighting systems, it is capable of modulating the electrical power used for lighting according to each season of the year. hi other words, the present invention is essentially based on the idea of modulating the power supply of the lighting system 1 according to a series of pre-set modulation functions, which are associated to the respective four seasons of the year and whereof each is defined by a determined power variation law.
The lighting system 1 essentially comprises a plurality of lamps 2, e.g. high pressure sodium lamps or any other type of similar high intensity discharge lamp, and a main power supply line 3, which is able to supply the lamps 2 with a predetermined electrical power during a time interval AT1 of lighting/shutting down of the lamps 2 (shown in Figures 3, 4 and 5), which is varied by a power supply device 3a connected upstream of the line 3, according to the seasons of the year.
The lighting system 1 further comprises a series of electronic apparatuses 4, each of which is able to determine the current season, as a function of the time interval AT1, to modulate, instant by instant, the electrical power supplied to a corresponding lamp 2 as a function of the current season thus determined.
With reference to Figure 2, each electronic apparatus 4 essentially comprises a PFC (acronym of Power Factor Corrector) module, a power module 6, a detection module 7, a command module 8, and preferably a filtering module 9. hi particular, the PFC module 5 is connected to the power supply line 3 to receive as an input the electrical power supply, and its function is appropriately to regulate the power factor in such a way as to maintain it above a pre-set minimum value, whilst the power module 6 can be constituted by an inverter connected
downstream of the PFC module 5 to receive the electrical power, and it is provided with a series of internal switching circuits (not shown), which are able to modulate the electrical power supplied to a related lamp 2, according to a command signal
ScOM-
With regard to the filtering module 9, it can be preferably defined by a low-pass filter, which is interposed between the power module 6 and the lamp 2 to filter out high frequencies, and eliminate the direct components of the current, potentially harmful to the lamp 2; whilst the detection module 7 can be defined by an electrical measuring circuit, which is connected at the input to the power supply line 3 to output a signal SRΓV indicating the presence/absence of electrical power (voltage or current) on the power supply line 3.
With reference to Figure 2, the command module 8 receives at its input the signal SR1V3 and processes it to output the command signal SCOM through which it drives the power module 6 in such a way as to vary the electrical power to be supplied to the lamps 2.
In particular, in the example illustrated in Figure 2, the command module 8 comprises a memory 10 able to store a first table containing a plurality of numeric values defining a first function FT(AT1) which enables to determine, for each time interval AT1 of lighting/shutting down, a corresponding season of the year; and a processing device 11 , which serves the purpose of determining the time interval AT1 as a function of the signal SRJV, and which is able to implement the first function FT(AT1) to determine, on the basis of the calculated time interval AT1, the current season, i.e. the season present at the time of lighting.
The memory 10 further comprises a series of modulation functions Fi(ΔTl5t), each of which is associated to a determined season of the year and indicates for each instant t the value of the power to be supplied to the lamps 2. The processing device 11 co-operates with the memory 10 to identify, on the basis of the determined current season, the respective modulation function Fj(ΔTl3t) and implements the latter in such a way as to generate the command signal SCOM which regulates, through the power
module 6, the power supplied to the lamps 2.
Each modulation function Fj(AT1 ,t) can provide a power regulation according to a linear or non-linear continuous profile, or according to a non-continuous profile within one or more time windows ATd;, each of which can be placed in any position within the lighting/shutting down time interval AT1.
In particular with reference to Figure 3, the processing device 11 implementing a modulation function Fj(AT1, t) can be able to vary the duration and/or the position of the each time window ΔTd; within the time interval AT1 according to the current season. In the specific case, the time window ATd; lies between an initial instant Ti and a final instant Tp and the processing device 11 is able to vary the initial instant T1 of the time window ATd; relative to an initial instant TK of lighting of the lamp 2, according to the determined current season.
Figures 4 and 5 show by way of example to modulation function stored in the memory 10. The first modulation function F1(AT15Q shown in Figure 4 is associated to the summer season and it entails, starting from the instant Ti, progressively reducing power to a first predetermined value (e.g., 60% of the nominal value) in a first time window ATd1, maintaining power to the first predetermined reduced value in a second time window ATd2, and progressively increasing power to the nominal value in a third time interval ATd3 until the final instant TF-
In use, the command module 8 receives as an input the signal SRΓV output by the detection module 7 and processes it to determine the time interval ATj. It should be specified that the command module 8 can be able to calculate and store in the memory 10 the time interval AT1 every day, in order to be able to identify, through the first table, during a subsequent lighting the current season according to the time interval AT1 calculated and stored the previous day.
At this point the processing device 11 identifies, through the memory 10, the modulation function
according to the current season, and proceeds to implement it in order to command instant by instant through the command signal
ScoM the power module 6, thus varying power according to the implemented modulation function.
The electronic apparatus 4 described above, in addition to being extremely simple to construct and hence economical to manufacture, has the great advantage of being able automatically to regulate electrical power specifically for each season of the year, thereby allowing to configure a suitable luminosity profile for each season, whilst reducing energy consumption with respect to the consumption values measured in the lighting systems that use a same power reduction profile for all seasons.
Lastly, it is clear that the electronic apparatus 4 described herein can be subject to modifications and variants without thereby departing from the scope of the present invention, defined by the accompanying claims.
Claims
1. An electronic apparatus (4) able to drive at least one lamp (4) comprised in a lighting system (1), which is able to light a public area and comprises a main power supply line able to supply said at least one lamp (2) with a predetermined electrical power during a lighting time interval (AT1), which is variable according to the seasonal periods of the year; said electronic apparatus (4) being characterised in that it comprises detection means (7), which, every time the lamp (2) is lighted anew, are able to provide a first signal (SRW) correlated to said lighting time interval (AT1); and command means (8), which, during said lighting time interval (AT1), are able to process said first signal (SRΓV) to determine the current seasonal period according to the lighting time interval (AT1), and are able to modulate, instant by instant, the electrical power supplied to the lamp (2) according to the determined current seasonal period.
2. An apparatus as claimed in claim 1 , characterised in that said command means (8) are able to modulate the electrical power supplied to the lamp (2) within at least one time window (ΔTdj) included in said lighting time interval (AT1); said command means (8) being able to vary the duration and/or the position of said at least one time window (ΔTdj) within said lighting interval (AT1) according to the determined current seasonal period.
3. Apparatus as claimed in claim 2, characterised in that said at least one time interval (ATd;) is included between an initial instant (T1) and a final instant (TF) included in said lighting interval (AT1); said command means (8) being able to vary the initial instant (T1) of the time window (ΔTdj) associated to the power modulation, relative to the initial instant (TK) of lighting of the lamp (2) as a function of the determined current seasonal period.
4. Apparatus as claimed in any of the previous claims, characterised in that it comprises power means (6) able to supply electrical power to the lamp (2); said command means (8) comprising memory means (10) able to store a series of power modulation functions (Fj(ΔTl5t)), each of which is associated to a corresponding seasonal period; and processing means (11) able to identify the power modulation function (Fj(ΔTi,t)) associated with the determined current seasonal period; said command means (8) being able to drive the power means (6) to vary the electrical power supplied to the lamp (2) on the basis of the identified regulating function (Fi(ΔTl5t)).
5. Lighting system (1) comprising a plurality of lamps (2) able to light a public area, a power supply line (3) able to supply said lamps (2) with a predetermined electrical power during a lighting time interval (AT1), which is variable according to the seasonal periods of the year, and a series of electronic apparatuses (4) each of which is able to drive a corresponding lamp (2); said system being characterised in that each electronic apparatus (4) is as claimed in any of the previous claims.
6. Lighting system as claimed in claim 5, characterised in that said lamps (2) are high intensity discharge lamps.
7. An operating method of a lighting system (1) comprising a plurality of lamps (2) able to light a public area, a power supply line (3) able to supply said lamps (2) with a predetermined electrical power during a lighting time interval (AT1), which is variable according to the seasonal periods of the year; said method being characterised in that it comprises the step of determining, each time the lamps (2) are lighted anew, the current seasonal period as a function of the lighting time interval (AT1), and of modulating, instant by instant, the electrical power supplied to the lamps (2) as a function of the determined current seasonal period.
8. Method as claimed in claim 7, characterised in that said modulation of the electrical power is performed within at least one time window (ATd;) included in said lighting time interval (AT1); said step of modulating the electrical power supplied to the lamps (2) comprises the step of varying the duration and/or the position of said at least one time window (ATd;) within said lighting time interval (AT1) according to the determined current seasonal period.
9. Method as claimed in claim 8, characterised in that said at least one time window (ΔTdj) is included between an initial instant (T1) and a final instant (TF) included in said lighting time interval (AT1); said step of varying the duration and/or the position of said at least one time window (ΔTd;) comprises the step of varying the initial instant (Ti) of the time interval (ΔTdj) associated to the power modulation, relative to an initial instant (TK) of lighting of the lamp (2) according to the determined current seasonal period.
10. Method as claimed in any of the claims from 7 to 9, characterised in that it comprises the steps of, before the power modulation, storing a series of power modulation functions (Fi(ΔTl5t)), each of which is associated to a respective seasonal period of the year; identifying, at each new lighting, the power modulation function (Fj(ΔTl3t)) associated to the current seasonal period; and modulating the electrical power supplied to the lamps (2) according to the identified modulation function (Fi(ΔTl5t)).
Applications Claiming Priority (2)
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ITTO2005A000362 | 2005-05-27 | ||
IT000362A ITTO20050362A1 (en) | 2005-05-27 | 2005-05-27 | ELECTRONIC DEVICE FOR THE OPTIMIZED CONTROL OF ELECTRIC POWER IN A PUBLIC LIGHTING SYSTEM AND ITS FUNCTIONING METHOD |
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WO2006126240A1 true WO2006126240A1 (en) | 2006-11-30 |
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PCT/IT2006/000400 WO2006126240A1 (en) | 2005-05-27 | 2006-05-26 | An electronic apparatus for the optimised control of the electrical power of a public lighting system and operating method thereof |
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WO2010110947A1 (en) * | 2009-03-27 | 2010-09-30 | General Electric Company | Pre-programmed energy management ballast or driver |
DE102009033358A1 (en) * | 2009-07-16 | 2011-01-27 | Elektrobau Oschatz Gmbh & Co. Kg | Operating control device and method for controlling the operating state of a lighting device |
EP2392193A1 (en) * | 2009-01-27 | 2011-12-07 | Led Roadway Lighting Ltd. | Power supply for light emitting diode roadway lighting fixture |
GB2497096A (en) * | 2011-11-30 | 2013-06-05 | Simmonsigns Ltd | Lighting system with ambient light monitoring |
DE102012008215A1 (en) | 2012-04-18 | 2013-10-24 | Heribert Oechsler | Device for realizing a reference clock with automatic connection of the internal system time to earth rotation |
US10667368B2 (en) | 2017-01-17 | 2020-05-26 | Signify Holding B.V. | Lighting device with timing circuit synchronisation |
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WO2009018853A1 (en) * | 2007-08-03 | 2009-02-12 | Osram Gesellschaft mit beschränkter Haftung | Method for programming electronic operating devices for discharge lamps and electronic operating device for discharge lamps |
US8354801B2 (en) | 2007-08-03 | 2013-01-15 | Osram Gesellschaft Mit Beschraenkter Haftung | Method for programming electronic operating devices for discharge lamps and electronic operating device for discharge lamps |
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