EP3966969A1 - Dispositif d'éclairage intelligent et d'un procédé de commutation d'un tel dispositif d'éclairage - Google Patents
Dispositif d'éclairage intelligent et d'un procédé de commutation d'un tel dispositif d'éclairageInfo
- Publication number
- EP3966969A1 EP3966969A1 EP20735012.5A EP20735012A EP3966969A1 EP 3966969 A1 EP3966969 A1 EP 3966969A1 EP 20735012 A EP20735012 A EP 20735012A EP 3966969 A1 EP3966969 A1 EP 3966969A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lighting device
- light
- source
- switching method
- light source
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000004891 communication Methods 0.000 claims abstract description 68
- 230000005670 electromagnetic radiation Effects 0.000 claims description 24
- 230000005855 radiation Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- 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
-
- 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
-
- 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
- H05B47/17—Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations
-
- 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 technical context of the present invention is that of communication by light channel in order to transport digital data by means of modulated electromagnetic radiation. More particularly, the invention relates to an intelligent lighting device and to a method for switching such a lighting device.
- LIFI lighting systems are known in particular which take the form of ceiling lights or desk lamps in order to provide lighting - under light visible to the human eye - while simultaneously offering a communication signal by modulation of the luminous intensity of the light emitted by such lighting systems.
- document EP 3476185 B1 which describes a set of interconnected ceiling lights, each ceiling light comprising several visible light sources controlled by a controller configured to selectively control each light source of a given ceiling light.
- the controller makes it possible to turn on, off or modulate lighting produced by each light source.
- a known drawback is that it is necessary to leave these LIFI lighting systems on in order to have wireless communication.
- these known lighting systems do not yet make it possible to combine the lighting function with that of communication, leaving the choice to the consumer of the desired functionality; today, such LIFI lighting systems intended to illuminate do not allow wireless communication to be available without lighting.
- An object of the invention is to provide a new method of switching an intelligent lighting device as well as a new intelligent lighting device in order to respond at least to a large extent to the above problems and to drive in in addition to other advantages.
- Another object of the invention is to make it possible to offer more modularity in the provision of lighting and wireless communication in order to better meet the needs of users.
- Another object of the invention is to allow LIFI to fulfill its promise of optimizing household energy consumption.
- At least one of the aforementioned objectives is achieved with a method of switching a lighting device comprising a light source configured to be able to emit visible radiation forming either a light signal and / or a communication signal and a secondary source configured to be able to emit the communication signal, the switching method making it possible to control the lighting device by selecting one of the following operating modes:
- the light source of the lighting device is configured to generate the light signal and the secondary source of the lighting device is configured so as not to emit the light. communication signal;
- [14] - a fourth operating mode - known as the simple communication state - in which the light source of the lighting device is configured not to emit the light signal and the secondary source is configured to generate the communication signal.
- the switching method makes it possible to adapt an operating state of a lighting device by independently selecting the emission of the light signal in order to produce illumination and / or the emission of the communication signal. allowing to transport digital data wirelessly.
- the switching method in accordance with the first aspect of the invention thus makes it possible to provide more modularity in the control of these lighting devices, and in particular intelligent lighting devices gui make it possible to accomplish other functions gue simple lighting by their light sources.
- the switching method according to the first aspect of the invention advantageously comprises at least one of the improvements below, the technical characteristics forming these improvements being able to be taken alone or in combination:
- the switching method according to the first aspect of the invention comprises a step of measuring an ambient brightness at the lighting device, the operating mode of the lighting device being defined as a function of the measured ambient brightness .
- the ambient luminosity can be measured by any known photodetector, such as for example a photodiode;
- the switching method in accordance with the first aspect of the invention comprises a step of comparing the ambient brightness with respect to a threshold value, if the ambient brightness is greater than the threshold value, then the lighting device is switched to its fourth mode of operation.
- the lighting device is controlled so that the communication signal is not supplied by the light signal.
- the communication signal is then of the type of an infrared signal so as not to be visible to the human eye; and the secondary source is of the type of an infrared source;
- the switching method according to the first aspect of the invention comprises a step of measuring an environmental parameter, the operating mode of the lighting device being defined as a function of the environmental parameter measured.
- the environmental parameter can be a chemical compound using an optical sensor or a chemical detector, a presence detector in order to detect movement to control the lighting device, a humidity level using a hygrometry sensor ...
- the switching method according to the first aspect of the invention comprises a step of determining a time of day, the operating mode of the lighting device is defined as a function of the determined time of day.
- the time of day is determined by a clock embedded on the lighting device or by the transmission to the lighting device of information relating to the time of day, the determination step the time of day comprising a step of receiving such information relating to the time of day, such as for example a universal time or an elapsed time;
- the switching method according to the first aspect of the invention comprises a fifth operating mode - called ultra-communication state - in which the light source of the lighting device is configured to simultaneously generate the light signal and a first communication signal, and the secondary source of the device lighting is configured to generate a second communication signal.
- a lighting device comprising means configured to implement the switching method according to the first aspect of the invention or according to one of its improvements.
- Such a lighting device thus makes it possible to offer more modularity for the lighting and wireless communication functions.
- the means of the lighting device comprise (i) a light source configured to generate a first electromagnetic radiation, (ii) a secondary source configured to generate a second radiation. electromagnetic radiation, and (iii) a control module making it possible to drive the light source and the secondary source in order to generate simultaneously or alternately the first and the second electromagnetic radiation.
- the first electromagnetic radiation allows illumination and / or wireless communication; and the second electromagnetic radiation enables wireless communication.
- control module of the lighting device which is configured to implement the switching method according to the first aspect of the invention or according to the a guelcongue of its improvements.
- the lighting device according to the second aspect of the invention advantageously comprises at least one of the improvements below, the technical characteristics forming these improvements can be taken alone or in combination:
- a wavelength of the second electromagnetic radiation generated by the secondary source is greater than 750 nm or less than 350 nm.
- the secondary source is of the type of an infrared source, the wavelength of the second electromagnetic radiation being between 700 nm and 100 ⁇ m. This advantageous configuration makes it possible to avoid gue the second electromagnetic radiation being harmful to human vision;
- the light source is configured to emit the first electromagnetic radiation with a wavelength between 350 nm and 750 nm. This advantageous configuration makes it possible to make the first electromagnetic radiation visible to the human eye; [30] - Advantageously, the light source is of the type of a light-emitting diode source;
- the lighting device comprises a clock configured to determine a time of day, the control module being configured to control the light source and / or the secondary source according to the time of the day detected.
- the control module is configured to adapt a light flux and / or a lighting temperature.
- the light flux associated with the first magnetic radiation produced by the lighting device in accordance with the second aspect of the invention may be zero during the day if the room in which the lighting device is installed is subjected to daytime natural lighting, while the luminous flux associated with the first magnetic radiation of said lighting device may be non-zero during the night in order to compensate for the drop in natural light.
- the lighting temperature can take a first value during the day in order to reproduce a natural lighting color, such as that which can be found outside for example, while the lighting temperature can take a second value - warmer than the first value - during the night in order to reduce eye fatigue.
- the lighting device comprises a detector of an ambient luminosity, the control module being configured to control the light source and / or the secondary source according to the moment of the luminosity ambient detected.
- the brightness detector of the lighting device according to the second aspect of the invention is of the type of a photo receiver, such as for example a photodiode or a CCD sensor;
- the lighting device in accordance with the second aspect of the invention or according to any one of its improvements is chosen from those of the type of a ceiling light, of a lighting lamp. desk or outdoor floor lamp.
- FIG.1 illustrates a block example of the various steps of the switching method according to the first aspect of the invention
- FIG.2 illustrates a schematic view of the lighting device according to the second aspect of the invention.
- Such a switching method 10 comprises a switching step 13 in an operating mode 130 chosen from among several of a lighting device 100 not shown in FIGURE 1.
- the choice of one of the operating modes 130 makes it possible to make operating the lighting device 100 according to a particular mode which depends on the switching state chosen.
- the lighting device 100 will be described in more detail with reference to FIGURE 2.
- the lighting device 100 visible in FIGURE 2 comprises a light source 110 configured to be able to emit electromagnetic radiation. visible forming either a light signal 115 and / or a communication signal and a secondary source 120 configured to be able to emit invisible electromagnetic radiation forming the communication signal 125.
- the communication signal 125 can be emitted either by the light source 110, or by the secondary source 120, or simultaneously by the light source 110 and by the secondary source 120.
- the device of lighting 100 advantageously emits (i) a first communication signal 125a via the light source 110 and (ii) a second communication signal 125b via the secondary source 120.
- the emission of the light signal 115 and / or of the control signal 125 is controlled by the switching method 10 in accordance with the first aspect of the invention.
- the switching step 13 of the switching method 10 in accordance with the first aspect of the invention makes it possible to control the lighting device 100 by selecting one of the following operating modes 130:
- this first operating mode 131 the light source 110 and the secondary source 120 are simultaneously switched off;
- a second operating mode 132 - called a single lighting state - in which the light source 110 of the lighting device 100 is configured to generate the light signal 115 and the secondary source 120 of the lighting device 100 is configured not to transmit the communication signal 125.
- this second operating mode 132 only the secondary source 120 is turned off;
- the secondary source 120 can be configured to generate the communication signal 125 or it can be turned off;
- the fifth operating mode 135, optional to the switching method 10 according to the first aspect of the invention, is shown in dotted lines.
- the different operating modes 130 of the lighting device 100 are shown in dotted lines, except the one selected by the switching method 10, here the second operating mode 132 in FIGURE 1.
- the switching method 10 in accordance with the first aspect of the invention advantageously comprises a step 11 of comparing the brightness. ambient relative to a threshold value. During this comparison step 11, if the detected ambient brightness is greater than the threshold value, then the lighting device 100 is switched to its fourth operating mode 134.
- the ambient brightness is advantageously determined by a photometric measurement at l. using a photosensitive sensor such as for example a photodiode. In this case, the photosensitive sensor is preferably on board the lighting device 100.
- the ambient brightness can also be determined by transmitting an ambient brightness measured by a photosensitive sensor which is not part of the lighting device 100.
- the photosensitive sensor is externalized and located in a position other than that in which the lighting device 100 is installed.
- the transmission of the measured ambient brightness is advantageously carried out by means of a wireless communication, of the RFID, bluetooth or LIFI type for example, or by means of a wired communication, of the RS232 or Ethernet type for example.
- the switching method 10 in accordance with the first aspect of the invention advantageously comprises a step 12 of determining a time of day, the operating mode 130 of the lighting device 100 being defined as a function. of the determined time of day.
- the time of day is advantageously determined by a clock on board the lighting device 100.
- the time of day or a control instruction depending on the time of day previously determined is transmitted to the lighting device 100.
- the clock is externalized and located in a position other than that in which the lighting device 100 is installed.
- the transmission of the time of day or of the corresponding piloting instruction is advantageously carried out by means of a wireless communication, of the RFID, bluetooth or LIFI type for example, or by means of a wired communication, type RS232 or ethernet for example.
- FIGURE 2 illustrates an exemplary embodiment of the lighting device 100 according to the second aspect of the invention and comprising means configured to implement the switching method 10 as described previously with reference to FIGURE 1.
- the lighting device 100 comprises a light source 110 configured to be able to emit a first visible electromagnetic radiation forming either a light signal 115 and / or a communication signal 125 and a secondary source 120 configured to be able to emit. a second invisible electromagnetic radiation forming the communication signal 125.
- the means forming the lighting device 100 comprise:
- the light source 110 configured to generate the first electromagnetic radiation forming the light signal 115 and / or the communication signal 125.
- the light source 110 is advantageously of the type comprising one or more diodes electroluminescent.
- the light-emitting diodes are of the type of a white light-emitting diode and / or of a combination of green, red and blue light-emitting diodes.
- the light-emitting diodes are of the type of microdiodes.
- a wavelength of the first electromagnetic radiation generated by the light source is between 350 nm and 750 nm so that the light signal 115 is visible by a human eye;
- the secondary source 120 configured to generate the second electromagnetic radiation forming the communication signal 125.
- the secondary source 120 is of the type of an infrared source configured to gue the communication signal 125 formed by the second electromagnetic radiation has a wavelength greater than 750 nm or less than 350 nm so that the communication signal 125 generated by the secondary source is not perceptible by a human eye and is not harmful to health;
- control module 140 making it possible to control the light source 110 and the secondary source 120 in order to generate simultaneously or alternately the first and the second electromagnetic radiation.
- control module 140 notably comprises a microprocessor and / or a microcontroller.
- control module 140 is configured both to polarize the light source so as to emit a non-communicating light signal 115 and to generate a modulated control signal of the light source in order to generating a modulated light signal simultaneously forming the light signal 115 and the communication signal 125, according to the operating mode 130 selected to control the lighting device 100.
- the lighting device 100 advantageously comprises:
- a clock 150 configured to determine a time of day
- the control module 140 being configured to drive the light source 110 and / or the secondary source 120 as a function of the time of day detected by the clock 150;
- control module 140 being configured to control the light source 110 and / or the secondary source 120 according to the moment of the ambient luminosity detected by the detector 160.
- the invention relates to a switching method 10 of an intelligent lighting device 100, the switching method 10 comprising a step of selecting an operating mode 130 of the lighting device 100 in such a manner. in controlling the emission of a light signal 115 and / or of a communication signal 125.
- the light source 110 of the lighting device 100 thus controlled by the switching method 10 can emit the light signal 115 without emitting a communication signal 125, or the secondary source 120 can, alternately or simultaneously with the operation of the light source 110, emit the communication signal 125.
- the switching method 10 thus makes it possible to provide more modularity in the control of the lighting device 100.
- the invention also relates to a lighting device 100 controlled by such a switching method 10.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1904701A FR3095727A1 (fr) | 2019-05-05 | 2019-05-05 | Dispositif d’éclairage intelligent et procédé de commutation d’un tel dispositif d’éclairage |
PCT/FR2020/000162 WO2020225497A1 (fr) | 2019-05-05 | 2020-05-05 | Dispositif d'éclairage intelligent et d'un procédé de commutation d'un tel dispositif d'éclairage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3966969A1 true EP3966969A1 (fr) | 2022-03-16 |
Family
ID=67999790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20735012.5A Withdrawn EP3966969A1 (fr) | 2019-05-05 | 2020-05-05 | Dispositif d'éclairage intelligent et d'un procédé de commutation d'un tel dispositif d'éclairage |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220231762A1 (fr) |
EP (1) | EP3966969A1 (fr) |
FR (1) | FR3095727A1 (fr) |
WO (1) | WO2020225497A1 (fr) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9510427B2 (en) * | 2013-09-13 | 2016-11-29 | Cooper Technologies Company | Artificial light source based messaging platform |
WO2017077690A1 (fr) * | 2015-11-06 | 2017-05-11 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | Procédé de génération de signal de lumière visible, dispositif de génération de signal et programme |
WO2018001762A1 (fr) * | 2016-06-27 | 2018-01-04 | Philips Lighting Holding B.V. | Émission d'une lumière codée à partir d'un luminaire à lampes multiples |
GB201708643D0 (en) * | 2017-05-31 | 2017-07-12 | Univ Edinburgh | Optical wireless communications system |
US10484091B2 (en) * | 2017-06-29 | 2019-11-19 | Osram Sylvania Inc. | Light-based fiducial communication |
CN207490932U (zh) * | 2017-11-21 | 2018-06-12 | 武汉奥泽电子有限公司 | 一种基于lifi技术的下线配置系统 |
CN208546950U (zh) * | 2018-07-10 | 2019-02-26 | 东莞佰鸿电子有限公司 | 一种led路灯控制系统 |
-
2019
- 2019-05-05 FR FR1904701A patent/FR3095727A1/fr active Pending
-
2020
- 2020-05-05 US US17/609,146 patent/US20220231762A1/en not_active Abandoned
- 2020-05-05 WO PCT/FR2020/000162 patent/WO2020225497A1/fr unknown
- 2020-05-05 EP EP20735012.5A patent/EP3966969A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR3095727A1 (fr) | 2020-11-06 |
WO2020225497A1 (fr) | 2020-11-12 |
US20220231762A1 (en) | 2022-07-21 |
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