CN102448232A - LED (light-emitting diode) lighting controller with sensitization function - Google Patents
LED (light-emitting diode) lighting controller with sensitization function Download PDFInfo
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- CN102448232A CN102448232A CN2011104513898A CN201110451389A CN102448232A CN 102448232 A CN102448232 A CN 102448232A CN 2011104513898 A CN2011104513898 A CN 2011104513898A CN 201110451389 A CN201110451389 A CN 201110451389A CN 102448232 A CN102448232 A CN 102448232A
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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
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Abstract
The invention discloses an LED (light-emitting diode) lighting controller with a sensitization function. The control circuit takes a 220V alternative current as an input power supply and is provided with a switch 16; the lighting intensity is sensed by a sensitization element 1; and after treatment of a microcontroller 4, the control circuit sends a pulse modulation signal or a linear regulation signal to control an LED driving module so as to regulate the brightness of an LED lamp, so that the illumination of an environment is maintained near a set value, wherein the set value and the lighting time period are determined through a key 10 in a panel. The circuit of the lighting controller disclosed by the invention is distributed on a printed circuit board 6, and the whole is packaged with a plastic box. The lighting controller disclosed by the invention can be installed in public places such as passageways, washrooms and the like in schools, residential areas, hospitals and the like; and the brightness of the LED lamp is automatically regulated according to the illumination intensity of the environment, so that the lighting brightness of the environment is kept constant, thereby saving energy sources and improving the comfortability of the environment. For facilitating the use of a user and further saving energy, the invention also provides manual and low-illumination lighting control modes simultaneously.
Description
Technical field
The invention belongs to lighting technical field, relate to a kind of LED lighting controller.
Background technology
LED is a kind of energy-saving and environmental protection, high light efficiency, multicolour, long-life new type light source.Compare other light sources, the LED lamp also has the characteristics of easy control brightness, and the LED lamp is generally driven by DC power supply, is added in voltage or electric current on the LED lamp pearl through adjusting, can change the luminous power of LED lamp pearl.Because dimmer application more and more widely; At present a lot of led drivers all have the light modulation input interface; Accept the input of pulse width modulating signal or linear regulation signal, these led drivers will lighten or dim the LED lamp along with the variation of input pulse width modulation signal duty ratio or linear regulation signal magnitude.
In public domains such as the passageway in places such as a lot of schools, residential block, hospital, garden, often occur no matter ambient light illumination how; The illuminating lamp of always all opening night by day; Become genuine " altar lamp "; This has wasted the natural daylight resource on daytime widely, has greatly consumed the valuable energy especially.Simultaneously a lot of zones part-time sections at night need not complete bright illumination, like the late into the night, in these time periods (refer to the low-level lighting stage or draw illumination phase), can suitably close or dim a part of illuminating lamp so that energy savings to greatest extent.
Improving constantly of Along with people's living standard, the requirement of people's illumination is also increasingly high.In the past people's illumination only require can let us at seeing of can seeing dark daytime of night and light with carry out normal activity; But people's illumination has proposed requirements at the higher level now; Particularly, more pay attention to comfort level, the automation and energy-conservation of illumination in places such as hospital, school, residential block, office buildings.
Summary of the invention
The object of the invention is to provide a kind of can make full use of natural lighting, with an automatic light meter according to time period and background environment illumination, the LED lighting controller of the power consumption that can practice every conceivable frugality.Under automatic light illumination mode and guide light illumination mode; This controller ability sensitive context illumination intensity; Send corresponding bright conditioning signal to the LED illuminating lamp; Thereby make the illumination of target area remain near the set point, provide manual dimming mode to satisfy customer requirements simultaneously, and the object illumination value can be set according to user preferences with the illumination period.The present invention controls the illumination of LED lamp, has both saved the energy, has improved the environmental amenity degree again.
The present invention realizes through following technical scheme:
A kind of LED lighting controller with sensitization function, said controller is made up of controller circuitry and plastic casing; Wherein, controller circuitry mainly is made up of photo-sensitive cell 1, AC/DC power transfer module 2, microcontroller 4, printed circuit board 6 and mains switch 16; It is characterized in that; Said controller circuitry also comprises real-time clock module 5, demonstration and adjustment module, bus control module; Said demonstration and adjustment module comprise LCD LCD 3, brightness value demarcation button 8, manual adjustments knob 9 and parameter setting button 10; Said bus control module comprises pulse width modulating signal bus 12, control bus line bank 14, linear regulation signal bus 15 and expansion input bus 17, and said plastic casing comprises plastics drain pan 7, plastics la m 20 and plastic front board 28; Demonstration and adjustment module and bus control module are installed on the printed circuit board 6, and are connected with microcontroller 4.
Described a kind of LED lighting controller with sensitization function; It is characterized in that real-time clock module 5 by AC/DC power transfer module 2 as main power source; Electric capacity is as stand-by power supply, and whole real-time clock module is installed on the printed circuit board 6, and is connected with microcontroller 4.
Described a kind of LED lighting controller with sensitization function; It is characterized in that plastic casing encapsulates and fixes controller circuitry; Printed circuit board 6 is fixed on the plastics drain pan 7 through screw and circuit board fixing threaded hole 11, plastics la m 20 through la m fixedly buckle 13 be fixed on the plastics drain pan 7.
Described a kind of LED lighting controller with sensitization function is characterized in that microcontroller 4 exports control signal on the control signal bus, and this control signal can drive nearly ten six road TTL gate circuits simultaneously; Wherein, control signal automatic and that guide light illumination mode to export is down determined by original set point, and the signal of exporting under the manual mode is by the contact position decision of manual adjustments knob 9.
Described a kind of LED lighting controller with sensitization function, it is characterized in that said control signal bus be pulse width modulating signal bus 12 with linear regulation signal bus 15 in a kind of.
Described a kind of LED lighting controller with sensitization function is characterized in that said control signal is a kind of in pulse width modulating signal and the linear regulation signal
Described a kind of LED lighting controller with sensitization function is characterized in that a kind of in the photo-sensitive cell of ordinary silicon photocell, the compensation of band colour filter and the three primary colors color sensor of photo-sensitive cell 1.
Described a kind of LED lighting controller with sensitization function is characterized in that expanding input bus 17 external heat and releases infrared sensor.
Described a kind of LED lighting controller with sensitization function is characterized in that respectively there is row's heat radiation seam 30 two sides of plastics drain pan.
Operation principle of the present invention is: described a kind of LED lighting controller with sensitization function has three kinds of mode of operations, automatically light illumination mode, manual light illumination mode and guide light illumination mode.
Under automatic light illumination mode; 1 pair of ambient lighting intensity of photo-sensitive cell is carried out perception; Light signal is changed into corresponding signal of telecommunication input microcontroller 4; Microcontroller 4 periodically arrives the external LED driver module according to the signal of telecommunication generation of input corresponding pulse width modulating signal or linear regulation signal, thereby regulates the luminous intensity of LED lamp.When photo-sensitive cell detects ambient light illumination and raises gradually; The duty ratio of the pulse width modulating signal that microcontroller sends or the linear regulation signal voltage value is corresponding reduces; LED lamp brightness deterioration; Microcontroller sends the pulse width modulating signal or the minimal linear conditioning signal magnitude of voltage (as 0 volt, this value can be confirmed according to the requirement of connection LED driver module) of 0% duty ratio when ambient light illumination is higher than a max-thresholds; Otherwise; When photo-sensitive cell detects ambient light illumination and reduces gradually; The duty ratio of the pulse width modulating signal that microcontroller sends or the corresponding increase of linear regulation signal voltage value; The brightness of LED lamp strengthens, and microcontroller sends the pulse width modulating signal or the maximum linear conditioning signal magnitude of voltage (as 2.5 volts, this value can be confirmed according to the requirement of connection LED driver module) of 100% duty ratio when ambient light illumination is lower than a minimum threshold.
Under manual light illumination mode; Microcontroller 4 reads the contact position information of manual adjustments knob 9 in real time; And corresponding pulse width modulating signal of output or linear regulation signal are given the external LED driver module, pulse width modulating signal or minimum and the maximum linear regulation voltage level of respectively corresponding 0% and 100% duty ratio of two extreme position points of knob synchronously in view of the above.
, guide the illumination period to refer to and waits personnel activity's period seldom at dead of night for guiding light illumination mode in the mode of operation of guiding the illumination period, the illumination of these periods can suitably lower the requirement, and mainly is to carry out the guide of road for the people of process once in a while.Guide light illumination mode to be called the low-level lighting pattern again; Under this pattern, microcontroller will be given the external LED driver module by this guide illumination period intraoral illumination set point (brightness percentage) the corresponding pulse width modulating signal of output or the linear regulation signal of last stored.Each controller can be provided with maximum 4 and guide the illumination period, and each guides the illumination period to comprise a start time point and a termination time point.With on the control bus line bank 14 that links to each other of expansion input bus 17 jumper cap is arranged; If do not use expansion input bus 17; It is linked to each other with power supply ground; When using this function it and external heat are released infrared sensor and link to each other, when perception has the people through out-of-date, system withdraws from and guides light illumination mode and get into automatic light illumination mode.
The switch logic of the above automatic light illumination mode, manual light illumination mode and three kinds of patterns of guide light illumination mode is: the time of system is 24 hours systems, and microcontroller 4 power-on self-tests move mode of operation chooser program later on.In this subprogram, detect earlier manual adjustments knob state, be in down state then get into manual light illumination mode if detect this knob.Otherwise (being that this knob is in the state of upspringing) from real-time clock module 5 obtain the current time and with it with read all set and guide the illumination period to compare; If in the segment limit, then get into and guide light illumination mode when the current time guides at certain; Otherwise get into automatic light illumination mode.Automatic light illumination mode with guide in the light illumination mode, system cycle property ground with the current time with read all set and guide the illumination period to compare; If the current time gets into or jumps out certain and guides the period, then get into and guide light illumination mode or jump out the guide light illumination mode; Otherwise maintenance proterotype.
In system's running, belong to which kind of mode of operation regardless of current, in case the manual adjustments knob on the control panel is pressed or upsprings, microcontroller 4 all will be received a real-time external interrupt, and move above mode of operation chooser program.
In the above-mentioned LED lighting controller with an automatic light meter according to intensity of illumination; Said microcontroller 4 can be transferred to a plurality of (maximum 16) external LED driver module from pulse width modulating signal bus 12 or linear regulation signal bus 15 with the LED illumination adjustments signal that sends, and makes that a lighting controller can a plurality of LED lamps of Synchronization Control.
Advantage of the present invention is:
1, the present invention can make full use of natural lighting, energy savings to greatest extent, energy-conserving and environment-protective.
2, the present invention is with an automatic light meter to the LED lamp according to intensity of illumination, need not manual adjustment, and is time saving and energy saving.
3, the present invention makes the illumination of field of illumination even more, stable, has improved the environmental amenity degree.
4, the present invention can be in the brightness that manual adjustments LED lamp under the situation about needing is arranged.
6, the present invention can wait at dead of night and guide the illumination period to dim the LED lamp automatically, saves energy consumption, and having the people to guide light illumination mode and get into automatic light illumination mode through out-of-date can withdrawing from immediately, guaranteed safety.
7, the present invention can manually set period and the required brightness value that guides light illumination mode according to user's demand.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 is a kind of plastic bottom coverboard and circuit system structure chart with LED lighting controller of sensitization function of the present invention.
Fig. 2 is the intercellar layer plastics of the plastic casing of the present invention composition that hardens.
Structure chart when Fig. 3 opens for the plastic front board of plastic casing of the present invention.
Fig. 4 is that plastic casing of the present invention A as shown in Figure 3 is to structural representation.
Embodiment
Embodiment: consult Fig. 1; A kind of LED lighting controller with an automatic light meter according to intensity of illumination; With microcontroller 4 is processor; The printed circuit board 6 of system is fixed on the plastics drain pan 7 through screw and circuit board fixing threaded hole 11, and plastics drain pan 7 dimension adjustable are so that it can be installed in the switch enclosure of 86 types commonly used or 120 types and other models.Said microcontroller 4 is transferred to the external LED driver module with the LED illumination adjustments signal that sends from pulse width modulating signal bus 12 or linear regulation signal bus 15 after handling according to the signal of photo-sensitive cell 1 input, and then the luminous intensity of control LED lamp.Import 220 volts of AC powers,, be converted into low-voltage DC to system's power supply (like 5V) by AC/DC power transfer module 2 through mains switch 16.1 pair of ambient lighting intensity of photo-sensitive cell is carried out perception; Light signal is changed into the corresponding signal of telecommunication output to microcontroller 4; For the influence (the for example moment high light of torch, lightning etc.) of eliminating accidentalia; Microcontroller 4 carries out the time average filtering of ambient light illumination perception at set intervals, produces the pulse width modulating signal or the linear regulation signal of corresponding pulsewidth.Mains switch 16 is arranged on the one side of printed circuit board 6 near plastics drain pan 7 with control bus line bank 14, and they link to each other with the outside through the through hole of electric wire on plastics drain pan 7.
Real-time clock module 5 is made up of DS1302 clock chip and interlock circuit, and wherein main power source connects AC/DC power transfer module 2, and stand-by power supply connects electric capacity.Chip can be the stand-by power supply charging when main power source is supplied power, and stand-by power supply can provide power supply for chip in a period of time in primary power source de-energizes.
Consult Fig. 1, the user can manually set the illumination upper lower limit value under the automatic light illumination mode, brightness percentage and the lighting hours section under the guide light illumination mode.
(1) the illumination upper lower limit value under the automatic light illumination mode is set.Open plastic front board 28; Press and set button of button 10 Far Lefts; LCD LCD 3 first row show " lighting threshold value ", and second row shows current brightness value " xxxx LUX " and the flicker that calculates according to photo-sensitive cell 1 transducing signal, and wherein " xxxx " is 4 integers; Can press manual adjustments knob 9 this moment and do counterclockwise or turn clockwise to regulate the brightness of LED lamp.When pressing setting button of Far Left once more; Microcontroller will write down current brightness value and be stored as " the minimal illumination threshold value " under the automatic light illumination mode; Simultaneously, LCD LCD 3 first row show " light-off threshold value " and flicker, and " maximal illumination threshold value " can be set similarly.
(2) guide brightness percentage and lighting hours section under the light illumination mode to set.Behind the illumination upper lower limit value that has been provided with under the automatic mode, to press first left once more and set button, first row shows " guiding 1 percentage " on the LCD LCD 3, and second row shows " yy% " and flicker, and wherein " yy " is two integers; Press several second and the 3rd setting button difference up-down adjustment brightness percent value from a left side; Pin second or the 3rd the quick up-down adjustment brightness percent value of button difference always; Meanwhile; The LED driver module receives pulse width modulating signal corresponding with this value or linear regulation signal, and makes the LED lamp light by this percentage; When the adjustable range that sets brightness value is 1～100, the stepping amount is 1 (the full state when bright of 100 corresponding LED lamps).Successively press first button twice again after setting the brightness percent value; First row shows " guiding 1 zero-time " on the LCD LCD 3; Second row shows " HH MM " and twice flicker " HH " and " MM " respectively successively; " HH MM " two two integers for separating with the space are represented hourage and the number of minutes of 24 hours systems respectively, precedingly once press first to set button be that hourage is set; After once the number of minutes is set the same said second or the 3rd button up-down adjustment hourage and the number of minutes respectively pinned.Similarly, can set " guiding for 1 concluding time ".Use same operating process, the user can set maximum four as required and guide the illumination period.Press first button once more after having set the guide light illumination mode; First row shows " current time setting " on the LCD LCD 3; Second row shows " HH MM " and twice flicker " HH " and " MM " respectively successively; " HH MM " is two two integers that separate with the space, representes hourage and the number of minutes of 24 hours systems respectively, and operating process is set identical with the lighting hours section; When pressing first setting button for the last time, microcontroller will write down the current time and store real-time clock into.
Manually the user can be through pressing the manual adjustments that manual adjustments knob 9 and rotation realize the brightness of LED lamp under the light illumination mode; Pulse width modulating signal or minimum and the maximum linear regulation voltage level of respectively corresponding 0% and 100% duty ratio of two extreme position points of knob; The minimum brightness (pass) of counterclockwise corresponding on earth LED lamp; The high-high brightness (bright entirely) of clockwise corresponding on earth LED lamp, the centre is divided into 100 equal portions.
All parameters that microcontroller is related and program all are stored in the inner Flash module of microcontroller, and they all can realize upgrading through refreshing Flash.In addition; In particular cases, photo-sensitive cell is carried out timing signal again, can stab the button 8 of brightness value demarcation with spicule when needs are online; First row shows " illumination demarcation " and flicker on the LCD LCD 3, and second row shows the current brightness value " xxxx LUX " that calculates; Ditto said, up and down regulate brightness value respectively by second and the 3rd button, pin second or the 3rd button quick up-down adjustment brightness value respectively always; The brightness value that timing signal shows with the standard illuminance meter is set the brightness value of microcontroller.Demarcate microcontroller with illuminance meter at LED lamp 20% and 80% when bright, microcontroller can be done linear interpolation and calculate current brightness value in view of the above.
Consult Fig. 2, plastics la m 20 through la m fixedly buckle 13 be fixed on the plastics drain pan 7, its effect is to cover in printed circuit board 6; Only expose demonstration and entering apparatus on the circuit board; Following hole has been dug on its surface: photo-sensitive cell la m hole 18, and LCD LCD hole 19, brightness value is demarcated button hole 21; Manual adjustments knob hole 22 is set button hole 23 and mains switch hole 24.
Consult Fig. 3; 28 effects of playing cover plate of plastic front board, photo-sensitive cell panel hole hole 25, the data that can observe LCD LCD 3 through polymethyl methacrylate form 26 have been dug in its surface; Between plastic front board 28 and the plastics drain pan 7 top cover rotating shaft 27 is arranged, panel bayonet socket 29 is arranged below the plastic front board 28.
Consult Fig. 4, respectively there is a heat radiation seam 30 two side end faces of plastics drain pan 7, for hot-air provides circulation passage, guarantee the stability of system works.
Photo-sensitive cell 1 is a kind of in photo-sensitive cell and the three primary colors color sensor of ordinary silicon photocell, band colour filter compensation in the present embodiment.
When photo-sensitive cell 1 during for the photo-sensitive cell of band colour filter compensation and three primary colors color sensor; Microcontroller 4 periodically carries out the time average filtering of ambient light illumination perception; Produce corresponding three tunnel independence control signals and be transferred to the driver module of outside three-primary color LED lamp from pulse width modulating signal bus 12 or linear regulation signal bus 15, the three groups of lamp pearls of RGB in the driving LED lamp are luminous respectively.The user can distinguish illumination upper lower limit value under three groups of automatic light illumination modes of lamp of manual setting RGB, guide light illumination mode brightness percentage and lighting hours section down, thereby the brightness that the user can three groups of lamps of manual adjustments simultaneously adjusts the illumination of user's needs.When photo-sensitive cell 1 was the photo-sensitive cell of band colour filter compensation, this lighting controller can compensate luminance curve of eye, is suitable for use in the demanding occasion of illumination.When photo-sensitive cell 1 was the three primary colors color sensor, this lighting controller can carry out independent digit control to the red-green-blue light component, was suitable for use in the occasion that illumination such as medical treatment has specific (special) requirements.
The above is merely preferred embodiment of the present invention.
Claims (9)
1. LED lighting controller with sensitization function, said controller is made up of controller circuitry and plastic casing; Wherein, controller circuitry mainly is made up of photo-sensitive cell (1), AC/DC power transfer module (2), microcontroller (4), printed circuit board (6) and mains switch (16); It is characterized in that; Said controller circuitry also comprises real-time clock module (5), demonstration and adjustment module, bus control module; Said demonstration and adjustment module comprise LCD LCD (3), brightness value demarcation button (8), manual adjustments knob (9) and parameter setting button (10); Said bus control module comprises pulse width modulating signal bus (12), control bus line bank (14), linear regulation signal bus (15) and expansion input bus (17), and said plastic casing comprises plastics drain pan (7), plastics la m (20) and plastic front board (28); Demonstration and adjustment module and bus control module are installed on the printed circuit board (6), and are connected with microcontroller (4).
2. a kind of LED lighting controller according to claim 1 with sensitization function; It is characterized in that real-time clock module (5) by AC/DC power transfer module (2) as main power source; Electric capacity is as stand-by power supply; Whole real-time clock module is installed on the printed circuit board (6), and is connected with microcontroller (4).
3. a kind of LED lighting controller according to claim 1 with sensitization function; It is characterized in that plastic casing encapsulates and fixes controller circuitry; Printed circuit board (6) is fixed on the plastics drain pan (7) through screw and circuit board fixing threaded hole (11), plastics la m (20) through la m fixedly buckle (13) be fixed on the plastics drain pan (7).
4. a kind of LED lighting controller with sensitization function according to claim 1 is characterized in that microcontroller (4) exports control signal on the control signal bus, and this control signal can drive nearly ten six road TTL gate circuits simultaneously; Wherein, control signal automatic and that guide light illumination mode to export is down determined by former set point, and the signal of exporting under the manual mode is by the contact position decision of manual adjustments knob (9).
5. a kind of LED lighting controller with sensitization function according to claim 4 is characterized in that said control signal bus is a kind of in pulse width modulating signal bus (12) and the linear regulation signal bus (15).
6. a kind of LED lighting controller with sensitization function according to claim 4 is characterized in that said control signal is a kind of in pulse width modulating signal and the linear regulation signal.
7. a kind of LED lighting controller with sensitization function according to claim 1 is characterized in that a kind of in the photo-sensitive cell of ordinary silicon photocell, band colour filter compensation and the three primary colors color sensor of photo-sensitive cell (1).
8. a kind of LED lighting controller with sensitization function according to claim 1 is characterized in that expanding the external heat of input bus (17) and releases infrared sensor.
9. a kind of LED lighting controller with sensitization function according to claim 1 is characterized in that respectively there is row's heat radiation seam (30) two sides of plastics drain pan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104513898A CN102448232A (en) | 2011-12-23 | 2011-12-23 | LED (light-emitting diode) lighting controller with sensitization function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104513898A CN102448232A (en) | 2011-12-23 | 2011-12-23 | LED (light-emitting diode) lighting controller with sensitization function |
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| CN102448232A true CN102448232A (en) | 2012-05-09 |
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| CN2011104513898A Pending CN102448232A (en) | 2011-12-23 | 2011-12-23 | LED (light-emitting diode) lighting controller with sensitization function |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103634967A (en) * | 2012-08-23 | 2014-03-12 | 东莞市佛朗特莱光电科技有限公司 | Photoelectric intelligent adjustable LED panel lamp and adjusting method |
| CN103796386A (en) * | 2014-01-22 | 2014-05-14 | 刘胜泉 | Variable-frequency LED induction driver |
| CN107889466A (en) * | 2015-03-31 | 2018-04-06 | 飞利浦照明控股有限公司 | For improving the vigilant illuminator and method of people |
| CN109195284A (en) * | 2018-09-21 | 2019-01-11 | 赛尔富电子有限公司 | Illumination control method and system |
| CN109526122A (en) * | 2018-12-06 | 2019-03-26 | 广东熠日照明科技有限公司 | A kind of light dimming toning control switch |
| CN111602374A (en) * | 2018-01-17 | 2020-08-28 | 戴姆勒股份公司 | Control of lighting system |
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| CN109195284B (en) * | 2018-09-21 | 2020-07-31 | 赛尔富电子有限公司 | Illumination control method and system |
| CN109526122A (en) * | 2018-12-06 | 2019-03-26 | 广东熠日照明科技有限公司 | A kind of light dimming toning control switch |
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Application publication date: 20120509 |