CN105517230A - Intelligent light control system for LED lamps based on integrated voltage regulator circuit - Google Patents
Intelligent light control system for LED lamps based on integrated voltage regulator circuit Download PDFInfo
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- CN105517230A CN105517230A CN201510957833.1A CN201510957833A CN105517230A CN 105517230 A CN105517230 A CN 105517230A CN 201510957833 A CN201510957833 A CN 201510957833A CN 105517230 A CN105517230 A CN 105517230A
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses an intelligent light control system for LED lamps based on an integrated voltage regulator circuit. The system is mainly composed of a central processing unit, an infrared probe, and a photosensitive sensor, a data memory, an alarm, a power source and an LED lamp which are connected with the central processing unit, and an infrared signal processing circuit which is connected in series between the infrared probe and the central processing unit. The system is characterized in that an integrated voltage regulator circuit is connected in series between the power source and the central processing unit; and the infrared signal processing circuit is composed of a signal carrier circuit connected with the infrared probe, and a filter and amplifier circuit connected with the signal carrier circuit. With the intelligent light control system for LED lamps, the brightness of an LED desk lamp can be adjusted automatically, the distance between a user and the desk lamp can be controlled accurately, and the LED desk lamp can be turned off automatically when there is no one nearby. Therefore, electric energy is saved greatly, the useful life of the LED desk lamp is fully increased, and the use cost is reduced.
Description
Technical field
The present invention relates to the technical field of electronic equipment, specifically refer to the intelligent light-controlled system of a kind of LED based on integrated stable voltage circuit.
Background technology
The normally fixing light of the LED desk lamp used in existing family, by user's hand control switch, this LED desk lamp cannot regulate brightness, when dark, user can feel insufficient light, can feel again that when light is stronger light is excessively bright, the deficiency of light all likely damages human eye with excessively bright.Meanwhile, if user use eyes from light too close to, also can damage human eye.
At present, some desk lamp can by the brightness of user's manual adjustments light, and user can the LED desk lamp light that is applicable to of the different adjustment of environmentally brightness, but the brightness of user's manual adjustments is also inaccurate.And user usually can forget closedown desk lamp when leaving, and wastes electric energy greatly.Therefore, research and develop and a kind ofly automatically can regulate the brightness of light, automatically shut down, and the intelligent desk lamp of the distance of user and desk lamp can be controlled, just become the present task of top priority.
Summary of the invention
The object of the invention is to overcome the brightness that LED desk lamp of the prior art can not regulate light automatically, can not automatically close, and the defect of the distance of user and desk lamp can not be controlled, the invention provides the intelligent light-controlled system of a kind of LED based on integrated stable voltage circuit.
The present invention is achieved through the following technical solutions: the intelligent light-controlled system of a kind of LED based on integrated stable voltage circuit, primarily of central processing unit, infrared probe, the light sensor be all connected with central processing unit, data storage, alarm, power supply and LED, and be serially connected in the infrared signal processing circuit composition between infrared probe and central processing unit; Meanwhile, between power supply and central processing unit, also integrated stable voltage circuit is serially connected with.
Described integrated stable voltage circuit is by voltage stabilizing chip U, triode VT4, triode VT5, diode D6, voltage stabilizing didoe D8, N pole is connected with the base stage of triode VT4 after resistance R16, the diode D7 that P pole is connected with the P pole of diode D6 after resistance R13, negative pole is connected with the P pole of diode D7, the polar capacitor C6 that positive pole is connected with the emitter of triode VT4 after resistance R14, positive pole is connected with the collector electrode of triode VT4, the polar capacitor C7 that negative pole is connected with the N pole of diode D6 after resistance R15, P pole is connected with the base stage of triode VT5, the diode D9 that N pole is connected with the N pole of voltage stabilizing didoe D8 after resistance R18, positive pole is connected with the collector electrode of triode VT5 after resistance R17 through resistance R19 in turn, the polar capacitor C8 that negative pole is connected with the COPM pin of voltage stabilizing chip U after resistance R20, positive pole is connected with the SFE pin of voltage stabilizing chip U, the polar capacitor C9 of minus earth, N pole is connected with the COPM pin of voltage stabilizing chip U, the diode D10 that P pole is connected with the negative pole of polar capacitor C9 after resistance R21, and positive pole is connected with the COPM pin of voltage stabilizing chip U, the polar capacitor C10 of minus earth forms, the emitter of described triode VT5 is connected with the N pole of diode D7, the N pole of described voltage stabilizing didoe D8 is connected with the VIN pin of voltage stabilizing chip U, and the P pole of this voltage stabilizing didoe D8 is connected with the negative pole of polar capacitor C7, the P pole of described diode D7 as integrated stable voltage circuit input and be connected with power supply, the COPM pin of described voltage stabilizing chip U as integrated stable voltage circuit output and be connected with central processing unit.
Described infrared signal processing circuit then cuts out wave circuit by the signal be connected with infrared probe, and cuts out with signal the filter amplification circuit that wave circuit is connected and form; The output of described filter amplification circuit is connected with central processing unit.
Described signal cuts out wave circuit by amplifier P1, triode VT1, diode D2, P pole is connected with the positive pole of amplifier P1, the diode D1 that N pole is connected with the P pole of diode D2 after resistance R2, positive pole is connected with the N pole of diode D1 after resistance R1, the polar capacitor C1 that negative pole is connected with the N pole of diode D2, negative pole is connected with the N pole of diode D2 after resistance R3 through resistance R4 in turn, the polar capacitor C2 that positive pole is connected with the output of amplifier P1, and P pole is connected with the negative pole of amplifier P1 after resistance R5, the diode D3 that N pole is connected with the base stage of triode VT1 forms, the emitter of described triode VT1 and the negative pole of polar capacitor C2 jointly form signal and cut out the output of wave circuit and be connected with filter amplification circuit, the grounded collector of this triode VT1, the input that wave circuit is cut out as signal in the N pole of described diode D1 is connected with infrared probe.
Described filter amplification circuit is by amplifier P2, triode VT2, triode VT3, one end is connected with the negative pole of amplifier P2, the resistance R6 that the other end is connected with the base stage of triode VT2, P pole is connected with the emitter of triode VT2 after resistance R7, the diode D4 that N pole is connected with the base stage of triode VT3, negative pole is connected with the emitter of triode VT3 after resistance R9, the polar capacitor C3 that positive pole is connected with the emitter of triode VT2, one end is connected with the negative pole of polar capacitor C3, the resistance R8 that the other end is connected with the emitter of triode VT2, P pole is connected with the emitter of triode VT2, the diode D5 that N pole is connected with the base stage of triode VT3 after resistance R10, negative pole is connected with the N pole of diode D5 after resistance R12, the polar capacitor C5 of ground connection while of after positive pole is connected with the collector electrode of triode VT3, and negative pole is connected with the output of amplifier P2 after resistance R11, the polar capacitor C4 that positive pole is connected with the N pole of diode D5 forms, the collector electrode of described triode VT2 is connected with the emitter of triode VT1, the positive pole of described amplifier is connected with the negative pole of polar capacitor C2, the positive pole of described polar capacitor C4 is as the output of filter amplification circuit.
For guaranteeing practical effect of the present invention, described light sensor preferentially adopts RA-1805NO type light sensor to realize; Infrared probe then adopts KR-P819 type infrared probe to realize; The chip of voltage stabilizing simultaneously U then preferentially adopts LM340K integrated chip to realize.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) integrated stable voltage circuit of the present invention can suppress the high voltage exported in power supply and heavy current, and the voltage and current of stable output, thus guarantee the stability of central processing unit work.
(2) infrared signal processing circuit of the present invention can carry out anti-interference process to the high-frequency signal in the detectable signal of infrared probe output and low frequency signal, can also prevent the interference signal in high frequency from scurrying into central processing unit, thus improve LED of the present invention intelligent light-controlled system LED desk lamp is automatically shut down, and control the accuracy of distance of user and desk lamp.
(3) present invention employs light sensor, the stable performance of this light sensor, the scope of Information Monitoring is wide, can accurately gather the brightness in acquisition range.
(4) infrared probe that the present invention adopts can carry out the detection of wide-angle 180 °, it has the advantages such as accuracy is high, sensitivity is strong, therefore, ensure that the intelligent light-controlled system of LED of the present invention can accurately be closed automatically to LED desk lamp, and improve the accuracy of this light control system to the distance measurement of human body and desk lamp.
(5) the intelligent light-controlled system of LED of the present invention, make LED desk lamp achieve automation brightness regulation, and can automatically close in unmanned, save electric energy greatly, and the useful life of LED desk lamp can be substantially increased, reduce use cost.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present invention.
Fig. 2 is the electrical block diagram of infrared signal processing circuit of the present invention.
Fig. 3 is the electrical block diagram of integrated stable voltage circuit of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, the present invention is primarily of central processing unit, infrared probe, the light sensor be all connected with central processing unit, data storage, alarm, power supply and LED, be serially connected in the integrated stable voltage circuit between power supply and central processing unit, and be serially connected in the infrared signal processing circuit composition between infrared probe and central processing unit; Wherein, as shown in Figure 2, it cuts out wave circuit by signal and filter amplification circuit forms for this infrared signal processing circuit.
For guaranteeing reliability service of the present invention, described central processing unit preferentially adopts LTC3455 integrated chip, and the SEN pin of this LTC3455 integrated chip is connected with light sensor, and BST pin is connected with LED, SW pin is connected with data storage, and SET pin is connected with alarm.Described power supply is that 12V direct voltage carries out the 12V direct voltage of stable output after suppression process through integrated stable voltage circuit to high voltage and heavy current, and this 12V direct voltage is that central processing unit is powered.
As shown in Figure 2, described signal cuts out wave circuit by amplifier P1, triode VT1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, polar capacitor C1, polar capacitor C2, diode D1, diode D2, and diode D3 forms.
During connection, the P pole of diode D1 is connected with the positive pole of amplifier P1, N pole is connected with the P pole of diode D2 after resistance R2.The positive pole of polar capacitor C1 is connected with the N pole of diode D1 after resistance R1, negative pole is connected with the N pole of diode D2.The negative pole of polar capacitor C2 is connected with the N pole of diode D2 after resistance R3 through resistance R4 in turn, positive pole is connected with the output of amplifier P1.The P pole of diode D3 is connected with the negative pole of amplifier P1 after resistance R5, N pole is connected with the base stage of triode VT1.
The emitter of described triode VT1 and the negative pole of polar capacitor C2 jointly form signal and cut out the output of wave circuit and be connected with filter amplification circuit, the grounded collector of this triode VT1; The input that wave circuit is cut out as signal in the N pole of described diode D1 is connected with infrared probe.
Meanwhile, described filter amplification circuit by amplifier P2, triode VT2, triode VT3, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, polar capacitor C3, polar capacitor C4, polar capacitor C5, diode D4, and diode D5 forms.
During connection, one end of resistance R6 is connected with the negative pole of amplifier P2, the other end is connected with the base stage of triode VT2.The P pole of diode D4 is connected with the emitter of triode VT2 after resistance R7, N pole is connected with the base stage of triode VT3.The negative pole of polar capacitor C3 is connected with the emitter of triode VT3 after resistance R9, positive pole is connected with the emitter of triode VT2.
One end of described resistance R8 is connected with the negative pole of polar capacitor C3, the other end is connected with the emitter of triode VT2.The P pole of diode D5 is connected with the emitter of triode VT2, N pole is connected with the base stage of triode VT3 after resistance R10.The ground connection while of after the negative pole of polar capacitor C5 is connected with the N pole of diode D5 after resistance R12, positive pole is connected with the collector electrode of triode VT3.The negative pole of polar capacitor C4 is connected with the output of amplifier P2 after resistance R11, positive pole is connected with the N pole of diode D5.
The collector electrode of described triode VT2 is connected with the emitter of triode VT1; The positive pole of described amplifier is connected with the negative pole of polar capacitor C2; The positive pole of described polar capacitor C4 as filter amplification circuit output and be connected with the DIM pin of LTC3455 integrated chip.
Operationally, the signal of the signal that infrared probe detects in infrared signal processing circuit is cut out wave circuit and is carried out anti-interference process to high-frequency signal and low frequency signal, can also eliminate the interference signal in high frequency in the present invention.The signal cut out after wave circuit process through signal is transferred to filter amplification circuit after amplifier P1, triode VT1, and signal filters by this filter amplification circuit, and exports after amplifying.
As shown in Figure 3, it is by voltage stabilizing chip U, triode VT4, triode VT5, diode D6 for described integrated stable voltage circuit, voltage stabilizing didoe D8, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, resistance R20, resistance R21, polar capacitor C6, polar capacitor C7, polar capacitor C8, polar capacitor C9, polar capacitor C10, diode D6, diode D7, diode D8, diode D9, and diode D10 forms.
During connection, the N pole of diode D7 is connected with the base stage of triode VT4 after resistance R16, P pole is connected with the P pole of diode D6 after resistance R13.The negative pole of polar capacitor C6 is connected with the P pole of diode D7, positive pole is connected with the emitter of triode VT4 after resistance R14.The positive pole of polar capacitor C7 is connected with the collector electrode of triode VT4, negative pole is connected with the N pole of diode D6 after resistance R15.The P pole of diode D9 is connected with the base stage of triode VT5, N pole is connected with the N pole of voltage stabilizing didoe D8 after resistance R18.The positive pole of polar capacitor C8 is connected with the collector electrode of triode VT5 after resistance R17 through resistance R19 in turn, negative pole is connected with the COPM pin of voltage stabilizing chip U after resistance R20.The positive pole of polar capacitor C9 is connected with the SFE pin of voltage stabilizing chip U, minus earth.The N pole of diode D10 is connected with the COPM pin of voltage stabilizing chip U, P pole is connected with the negative pole of polar capacitor C9 after resistance R21.The positive pole of polar capacitor C10 is connected with the COPM pin of voltage stabilizing chip U, minus earth.
The emitter of described triode VT5 is connected with the N pole of diode D7; The N pole of described voltage stabilizing didoe D8 is connected with the VIN pin of voltage stabilizing chip U, and the P pole of this voltage stabilizing didoe D8 is connected with the negative pole of polar capacitor C7.The P pole of described diode D7 as integrated stable voltage circuit input and be connected with power supply; The COPM pin of described voltage stabilizing chip U as integrated stable voltage circuit output and be connected with the VC pin of LTC3455 integrated chip.Operationally, integrated stable voltage circuit can suppress the high voltage exported in power supply and heavy current in the present invention, and the voltage and current of stable output, thus guarantee the stability of central processing unit work.In order to better implement the present invention, described voltage stabilizing chip U then preferentially adopts to be had strong, the low-cost LM340K integrated chip of stability and realizes.
During operation, described light sensor preferentially adopts RA-1805NO type light sensor to realize; The luminance signal collected for gathering the monochrome information in grease chamber, and is transferred to central processing unit by this light sensor.Brightness reference point is set with in described central processing unit, the luminance signal received is converted to data value and compares with brightness reference point by this central processing unit, and exports according to the result of comparison that corresponding to control the brightness maintenance that electric current makes LED desk lamp consistent with the brightness reference point set in central processing unit.
Wherein, described infrared probe is 180 ° of wide-angle infrared probes, and this infrared probe can accurately detect indoor constantly, and the information detected is transferred to central processing unit after infrared signal processing circuit process.When infrared ray probe detection is to indoor nobody time, and by this information transmission to central processing unit, at this moment central processing unit just can automatically stop exporting control electric current after information analysis, and this LED is just closed, and now LED also can return to rebooting status.
Simultaneously, also preset the safe distance value of human body and desk lamp in described central processing unit, when being less than the preset safe distance value in central processing unit when the distance of human body and desk lamp, central processing unit output LOW current is to alarm, now, alarm is unlocked and sends chimes of doom.When being greater than the preset safe distance value in central processing unit when the distance of human body and desk lamp, alarm stop alarm, thus the eyes effectively protecting user preserve from.
For guaranteeing reliability service of the present invention, described alarm then preferentially adopts to be had highly sensitive HARBT-6000-T alarm and realizes; Infrared probe then adopts KR-P819 type infrared probe to realize; The data storage that simultaneously data storage preferentially have employed C8051F020 type realizes.
As mentioned above, just the present invention can well be realized.
Claims (7)
1. the intelligent light-controlled system of the LED based on integrated stable voltage circuit, primarily of central processing unit, infrared probe, the light sensor be all connected with central processing unit, data storage, alarm, power supply and LED, and be serially connected in the infrared signal processing circuit composition between infrared probe and central processing unit; It is characterized in that, between power supply and central processing unit, be also serially connected with integrated stable voltage circuit.
2. the intelligent light-controlled system of a kind of LED based on integrated stable voltage circuit according to claim 1, it is characterized in that, described integrated stable voltage circuit is by voltage stabilizing chip U, triode VT4, triode VT5, diode D6, voltage stabilizing didoe D8, N pole is connected with the base stage of triode VT4 after resistance R16, the diode D7 that P pole is connected with the P pole of diode D6 after resistance R13, negative pole is connected with the P pole of diode D7, the polar capacitor C6 that positive pole is connected with the emitter of triode VT4 after resistance R14, positive pole is connected with the collector electrode of triode VT4, the polar capacitor C7 that negative pole is connected with the N pole of diode D6 after resistance R15, P pole is connected with the base stage of triode VT5, the diode D9 that N pole is connected with the N pole of voltage stabilizing didoe D8 after resistance R18, positive pole is connected with the collector electrode of triode VT5 after resistance R17 through resistance R19 in turn, the polar capacitor C8 that negative pole is connected with the COPM pin of voltage stabilizing chip U after resistance R20, positive pole is connected with the SFE pin of voltage stabilizing chip U, the polar capacitor C9 of minus earth, N pole is connected with the COPM pin of voltage stabilizing chip U, the diode D10 that P pole is connected with the negative pole of polar capacitor C9 after resistance R21, and positive pole is connected with the COPM pin of voltage stabilizing chip U, the polar capacitor C10 of minus earth forms, the emitter of described triode VT5 is connected with the N pole of diode D7, the N pole of described voltage stabilizing didoe D8 is connected with the VIN pin of voltage stabilizing chip U, and the P pole of this voltage stabilizing didoe D8 is connected with the negative pole of polar capacitor C7, the P pole of described diode D7 as integrated stable voltage circuit input and be connected with power supply, the COPM pin of described voltage stabilizing chip U as integrated stable voltage circuit output and be connected with central processing unit.
3. the intelligent light-controlled system of a kind of LED based on integrated stable voltage circuit according to claim 2, it is characterized in that, described infrared signal processing circuit then cuts out wave circuit by the signal be connected with infrared probe, and cuts out with signal the filter amplification circuit that wave circuit is connected and form; The output of described filter amplification circuit is connected with central processing unit.
4. the intelligent light-controlled system of a kind of LED based on integrated stable voltage circuit according to claim 3, it is characterized in that, described signal cuts out wave circuit by amplifier P1, triode VT1, diode D2, P pole is connected with the positive pole of amplifier P1, the diode D1 that N pole is connected with the P pole of diode D2 after resistance R2, positive pole is connected with the N pole of diode D1 after resistance R1, the polar capacitor C1 that negative pole is connected with the N pole of diode D2, negative pole is connected with the N pole of diode D2 after resistance R3 through resistance R4 in turn, the polar capacitor C2 that positive pole is connected with the output of amplifier P1, and P pole is connected with the negative pole of amplifier P1 after resistance R5, the diode D3 that N pole is connected with the base stage of triode VT1 forms, the emitter of described triode VT1 and the negative pole of polar capacitor C2 jointly form signal and cut out the output of wave circuit and be connected with filter amplification circuit, the grounded collector of this triode VT1, the input that wave circuit is cut out as signal in the N pole of described diode D1 is connected with infrared probe.
5. the intelligent light-controlled system of a kind of LED based on integrated stable voltage circuit according to claim 4, it is characterized in that, described filter amplification circuit is by amplifier P2, triode VT2, triode VT3, one end is connected with the negative pole of amplifier P2, the resistance R6 that the other end is connected with the base stage of triode VT2, P pole is connected with the emitter of triode VT2 after resistance R7, the diode D4 that N pole is connected with the base stage of triode VT3, negative pole is connected with the emitter of triode VT3 after resistance R9, the polar capacitor C3 that positive pole is connected with the emitter of triode VT2, one end is connected with the negative pole of polar capacitor C3, the resistance R8 that the other end is connected with the emitter of triode VT2, P pole is connected with the emitter of triode VT2, the diode D5 that N pole is connected with the base stage of triode VT3 after resistance R10, negative pole is connected with the N pole of diode D5 after resistance R12, the polar capacitor C5 of ground connection while of after positive pole is connected with the collector electrode of triode VT3, and negative pole is connected with the output of amplifier P2 after resistance R11, the polar capacitor C4 that positive pole is connected with the N pole of diode D5 forms, the collector electrode of described triode VT2 is connected with the emitter of triode VT1, the positive pole of described amplifier is connected with the negative pole of polar capacitor C2, the positive pole of described polar capacitor C4 is as the output of filter amplification circuit.
6. the intelligent light-controlled system of a kind of LED based on integrated stable voltage circuit according to claim 5, is characterized in that, described light sensor is RA-1805NO type light sensor.
7. the intelligent light-controlled system of a kind of LED based on integrated stable voltage circuit according to claim 6, is characterized in that, described infrared probe is KR-P819 type infrared probe; Described voltage stabilizing chip U is LM340K integrated chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510957833.1A CN105517230A (en) | 2015-12-18 | 2015-12-18 | Intelligent light control system for LED lamps based on integrated voltage regulator circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510957833.1A CN105517230A (en) | 2015-12-18 | 2015-12-18 | Intelligent light control system for LED lamps based on integrated voltage regulator circuit |
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| CN105517230A true CN105517230A (en) | 2016-04-20 |
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| CN203606914U (en) * | 2013-10-31 | 2014-05-21 | 滨州学院 | Infrared alarm based on single-chip microcomputer |
| CN204131805U (en) * | 2014-10-28 | 2015-01-28 | 林奕水 | A kind of intelligent multifunction LED desk lamp |
| CN204518129U (en) * | 2015-01-13 | 2015-07-29 | 天津佰电通科技有限公司 | A kind of intelligent lighting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102194322A (en) * | 2011-03-17 | 2011-09-21 | 生茂光电科技股份有限公司 | Signal lamp circuit of mobile traffic post |
| US20130082616A1 (en) * | 2011-10-02 | 2013-04-04 | Cree, Inc. | Over-temperature handling for lighting device |
| CN202907299U (en) * | 2012-11-06 | 2013-04-24 | 广东技术师范学院 | Laser-sensing-type intelligent energy-saving LED lighting device |
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