CN101711080B - LED lamp capable of automatically adjusting luminance according to ambient brightness - Google Patents
LED lamp capable of automatically adjusting luminance according to ambient brightness Download PDFInfo
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- CN101711080B CN101711080B CN 200910253938 CN200910253938A CN101711080B CN 101711080 B CN101711080 B CN 101711080B CN 200910253938 CN200910253938 CN 200910253938 CN 200910253938 A CN200910253938 A CN 200910253938A CN 101711080 B CN101711080 B CN 101711080B
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Abstract
The invention discloses an LED lamp capable of automatically adjusting the luminance of the LED lamp according to the ambient brightness, which comprises a control unit and the LED lamp, wherein the control unit comprises a microprocessor module, a driving module, at least one brightness sensing module and a power supply module for supplying power to the modules. The invention can control the luminance of the LED lamp according to the ambient brightness signal detected by the brightness sensing module, so that the luminance of the LED lamp continuously adapts to the environment, thereby bringing good lighting effect, avoiding power waste and avoiding the complicated process of manual control; particularly, when the number of the brightness sensor modules is multiple, the invention can detect more comprehensive brightness information in the environment, and the calculated brightness of the LED lamp has better lighting effect.
Description
Technical field
The present invention relates to LED lamp lighting field, particularly a kind of LED lamp that can automatically regulate self briliancy.
Background technology
At present, the employed LED lamp of people its briliancy after lighting generally all is changeless, because this briliancy all just is suitable for throwing light in the environment of dark usually, therefore the scope of application of this class LED lamp has limitation, can cause the electric power resource waste when using this class LED lamp the daytime of insufficient light.In addition, also exist on the market part to be provided with the LED lamp of briliancy regulatory function, it is manually controlled by simple diverter switch or knob, but because the brightness of LED lamp environment of living in is in the variation always, this class can not continue to adapt with environment of living in by the briliancy of the LED lamp that manual control is regulated equally.
Summary of the invention
For addressing the above problem, the invention provides and a kind ofly can automatically regulate according to ambient brightness the LED lamp of self briliancy.
The present invention is that the technical scheme that its problem of solution adopts is:
A kind of LED lamp of automatically regulating self briliancy according to ambient brightness, comprise control unit and LED lamp, described control unit comprises microprocessor module, driver module, at least one brightness sensing module and to the supply module of above-mentioned module for power supply, the monochrome information of described brightness sensing module detection self present position also will transmit luminance signal in microprocessor module after this monochrome information conversion, microprocessor module outputs a control signal to driver module after luminance signal is processed, and driver module is according to this control signal driving LED lamp work.
Further, the quantity of described brightness sensing module is two or more.
Further, described control unit also comprises the detection module of toppling over for detection of LED lamp lamp body tilt state, and described output of toppling over detection module is connected with microprocessor module.
The invention has the beneficial effects as follows: the present invention can detect according to the brightness sensing module briliancy of the ambient brightness signal controlling LED lamp that obtains, so that the briliancy of LED lamp adapts to environment facies constantly, thereby bring good illuminating effect, avoid power wastage, and avoided people's hand-guided complicated processes; Particularly be set to when a plurality of when the quantity of luminance sensor module, the present invention can detect in the environment more comprehensively monochrome information, and the briliancy of the LED lamp that it calculates has better illuminating effect.
In addition, control unit is provided with topples over detection module, and when LED lamp lamp body was toppled over, microprocessor can be known this state and the action that responds rapidly in time, and control LED lamp turn-offs, and can avoid the LED lamp to damage, and has guaranteed when the LED lamp uses safe and reliable.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is circuit block diagram of the present invention;
Fig. 2 is the circuit theory diagrams of an embodiment of the present invention;
Fig. 3 is the internal frame diagram of brightness sensing chip.
Embodiment
With reference to Fig. 1, a kind of LED lamp of the present invention, comprise control unit 1 and LED lamp 2, described control unit 1 comprises microprocessor module 11, driver module 12, at least one brightness sensing module 13 and to the supply module 14 of above-mentioned module for power supply, the monochrome information of described brightness sensing module 13 detections self present position also will transmit luminance signal in microprocessor module 11 after this monochrome information conversion, output a control signal to driver module 12 after 11 pairs of luminance signals of microprocessor module are processed, driver module 12 is according to these control signal driving LED lamp 2 work.
Wherein, the quantity of brightness sensing module 13 can arrange as required, as preferred embodiment, the quantity of brightness sensing module 13 is two or more, in the present embodiment, the quantity of brightness sensing module 13 is three, and microprocessor module 11 receives the luminance signal of three sensing module 13 present positions simultaneously.Because different brightness sensing modules 13 is generally positioned at the diverse location of LED lamp, they detect the monochrome information that the luminance signal that draws can reflect LED lamp environment of living in effectively all sidedly, guaranteed that briliancy that the LED lamp sends is and environment facies adapt to, rather than adapted with certain site in the environment.
As further preferred embodiment, control unit also comprise for detection of LED lamp lamp body tilt state topple over detection module 15, the output of toppling over detection module 15 is connected with microprocessor module 11.It is different to the signal of microprocessor module 11 conveyings to topple over detection module 15 when LED lamp lamp body is in normal laying state with tilt state, microprocessor module 11 can know just whether LED lamp lamp body is in tilt state as long as detect this signal, in case LED lamp lamp body is knocked over by people because of carelessness, microprocessor module 11 sends instruction control driver module 12 immediately so that the power supply of LED lamp is cut off, thereby has guaranteed the safe handling of equipment.
Fig. 2 is the circuit diagram of an embodiment of the present invention, wherein toppling over detection module 15 comprises and topples over diverter switch S1, topple over the end ground connection of diverter switch S1, the other end links to each other with the output VCC of supply module 13 by pull-up resistor R6, and the junction of toppling over diverter switch S1 and pull-up resistor R6 is provided with the output of toppling over detection module 15.When the switch open and-shut mode that LED lamp lamp body is toppled over diverter switch S1 during with tilt state in normal condition different, when toppling over diverter switch S1 and opening, toppling over detection module 15, to deliver to the signal of microprocessing unit 11 be high level, when toppling over diverter switch S1 closure, toppling over detection module 15, to deliver to the signal of microprocessing unit 11 be high level, so 11 of microprocessor modules need to detect the state that this signal just can be known LED lamp lamp body.
Continuation is with reference to Fig. 2, driver module 12 comprises transistor Q1 and current stabilization chip Q2, wherein transistor Q1 is metal-oxide-semiconductor, it is the chip of WT7220-T2 that current stabilization chip Q2 adopts model, the drain electrode of described transistor Q1 is connected with LED lamp 2, and source electrode is connected with the output of described current stabilization chip Q2, and gate pole is connected with the control signal output of microprocessor module 11 by driving resistance R 5, the earth terminal ground connection of described current stabilization chip Q2 is connected with the output VCC of supply module 14 for electrical input.The on off state of the control signal control transistor Q1 that microprocessor module 11 sends, the control of realization to size of current in LED lamp 2 current supply circuits thereby transistor Q1 and current stabilization chip Q2 cooperatively interact.
Supply module 14 comprises battery JD 1 and three-terminal voltage-stabilizing chip U4, wherein battery can adopt the battery of 24VDC0.5A, it is the chip of BA033FP that three-terminal voltage-stabilizing chip U4 adopts model, the positive voltage output end of described battery JD1 is connected with the input of three-terminal voltage-stabilizing chip U4, the output of three-terminal voltage-stabilizing chip U4 is the output VCC of supply module 14, and the voltage swing of the output VCC of the supply module 14 in the present embodiment is 3.3V.
Brightness sensing module 13 comprises brightness sensing chip U1, U3, U5, with reference to Fig. 3, brightness sensing chip inside is provided with photodiode PD and amplifying circuit AMP, and described photodiode PD detects the monochrome information that obtains and amplifies the luminance signal of processing backward microprocessor module 11 output current forms through amplifying circuit AMP.Employed brightness sensing chip is that model is the chip of BH1620FV in the present embodiment, and the input GC1 by chip is set and the level state of GC2 can be controlled the amplification mode of control chip detection signal.GC1 input in this example is high level, and the GC2 input is low level, and chip is in medium amplification mode.
Below in conjunction with the circuit among the embodiment course of work of the present invention is conducted further description: the monochrome information of brightness sensing chip U1, U3, U5 detection self present position, they form luminance signal with monochrome information respectively and send microprocessor module 11 to after conversion and amplification, microprocessor module 11 calculates the brightness of environment according to these luminance signals, and exporting under this ambient brightness corresponding suitable control signal according to the data of its storage inside, transistor Q1 cooperates with current stabilization chip Q2 according to control signal and carries out deciding the electric current light modulation.Because the brightness sensing chip sends luminance signal to microprocessor module 11 constantly, the control signal that microprocessor module 11 sends also can constantly be updated, so that the briliancy of institute's controlled LED lamp continues to follow the variation of ambient brightness and change, thereby realize automatically regulating the function of self briliancy.
Above-mentionedly just preferred embodiments more of the present invention are illustrated and describe, but structure of the present invention is not restricted to the described embodiments, as long as it reaches technique effect of the present invention with essentially identical means, all should belong to protection scope of the present invention.
Claims (5)
1. LED lamp of automatically regulating self briliancy according to ambient brightness, comprise control unit (1) and LED lamp (2), it is characterized in that described control unit (1) comprises microprocessor module (11), driver module (12), at least one brightness sensing module (13) and to the supply module (14) of above-mentioned module for power supply, described brightness sensing module (13) detect the monochrome information of self present position and this monochrome information transformed after transmit luminance signal in microprocessor module (11), after processing luminance signal, microprocessor module (11) outputs a control signal to driver module (12), driver module (12) is according to this control signal driving LED lamp (2) work, described control unit also comprises topples over detection module (15) for detection of LED lamp lamp body tilt state, described output of toppling over detection module (15) is connected with microprocessor module (11), describedly topple over detection module (15) and comprise and topple over diverter switch (S1), a described end ground connection of toppling over diverter switch (S1), the other end links to each other with the output (VCC) of supply module (13) by pull-up resistor (R6), and described junction of toppling over diverter switch (S1) and pull-up resistor (R6) is provided with the output of toppling over detection module (15).
2. according to claim 1ly a kind ofly automatically regulate the LED lamp of self briliancy according to ambient brightness, it is characterized in that the quantity of described luminance sensor module (13) is two or more.
3. a kind of LED lamp of automatically regulating self briliancy according to ambient brightness according to claim 1, it is characterized in that described driver module (12) comprises transistor (Q1) and current stabilization chip (Q2), the drain electrode of described transistor (Q1) is connected with LED lamp (2), source electrode is connected with the output of described current stabilization chip (Q2), gate pole is connected with the control signal output of microprocessor module (11) by driving resistance (R5), the earth terminal ground connection of described current stabilization chip (Q2) is connected with the output (VCC) of supply module (14) for electrical input.
4. a kind of LED lamp of automatically regulating self briliancy according to ambient brightness according to claim 1, it is characterized in that described supply module (14) comprises battery (JD1) and three-terminal voltage-stabilizing chip (U4), the positive voltage output end of described battery (JD1) is connected with the input of three-terminal voltage-stabilizing chip (U4), and the output of three-terminal voltage-stabilizing chip (U4) is the output (VCC) of supply module (14).
5. a kind of LED lamp of automatically regulating self briliancy according to ambient brightness according to claim 1, it is characterized in that described brightness sensing module (13) comprises brightness sensing chip (U1, U3, U5), described brightness sensing chip inside is provided with photodiode (PD) and amplifying circuit (AMP), and described photodiode (PD) detects the monochrome information that obtains and amplifies processing backward microprocessor module (11) output brightness signal through amplifying circuit (AMP).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910253938 CN101711080B (en) | 2009-11-30 | 2009-11-30 | LED lamp capable of automatically adjusting luminance according to ambient brightness |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910253938 CN101711080B (en) | 2009-11-30 | 2009-11-30 | LED lamp capable of automatically adjusting luminance according to ambient brightness |
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| CN101711080A CN101711080A (en) | 2010-05-19 |
| CN101711080B true CN101711080B (en) | 2013-03-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015037809A1 (en) * | 2013-09-12 | 2015-03-19 | Cj Cgv Co., Ltd. | Kids cinema system for implementing well-lighted screening environment |
| CN105848374A (en) * | 2015-01-12 | 2016-08-10 | 芋头科技（杭州）有限公司 | Light control system and method |
| CN105135811A (en) * | 2015-07-10 | 2015-12-09 | 合肥美的电冰箱有限公司 | Refrigerator and lighting device for refrigerator |
| CN113056071A (en) * | 2021-03-22 | 2021-06-29 | 上海泛洋交通设施制造有限公司 | Intelligent street lamp, lighting system and control method |
| CN114777403A (en) * | 2022-05-12 | 2022-07-22 | 合肥美菱物联科技有限公司 | Remote control system and method for refrigerator illumination |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101175350A (en) * | 2006-10-31 | 2008-05-07 | 宁波安迪光电科技有限公司 | Energy-saving illumination device |
| CN201323695Y (en) * | 2008-12-16 | 2009-10-07 | 黄火土 | Reading lamp automatic light regulating device |
| CN201339901Y (en) * | 2009-01-20 | 2009-11-04 | 中南林业科技大学 | Intelligent energy-saving lighting device |
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- 2009-11-30 CN CN 200910253938 patent/CN101711080B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101175350A (en) * | 2006-10-31 | 2008-05-07 | 宁波安迪光电科技有限公司 | Energy-saving illumination device |
| CN201323695Y (en) * | 2008-12-16 | 2009-10-07 | 黄火土 | Reading lamp automatic light regulating device |
| CN201339901Y (en) * | 2009-01-20 | 2009-11-04 | 中南林业科技大学 | Intelligent energy-saving lighting device |
Non-Patent Citations (1)
| Title |
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| 赵永志.城市路灯监控管理系统的关键技术研究.《科技资讯》.2007,第43页. * |
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Address after: 528415, Guangdong, Zhongshan Province, Zhongshan City, Jiangsu Province, the base of Hefeng Industrial Zone, Tianjin city Dick force Lighting Appliance Co., Ltd. Applicant after: Shi Mingfeng Address before: 528415, Guangdong, Zhongshan Province, Zhongshan City, Jiangsu Province, the base of Hefeng Industrial Zone, Tianjin city Dick force Lighting Appliance Co., Ltd. Applicant before: Shi Mingfeng |
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Owner name: ZHONGSHAN DIKELI LIGHTING ELECTRIC APPLIANCE CO., Free format text: FORMER OWNER: SHI MING Effective date: 20140813 |
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Effective date of registration: 20140813 Address after: 528400 Guangdong Province, Zhongshan City Xiaolan Town Yucheng Road No. 12 Patentee after: Zhongshan Dikeli Lighting Electric Appliance Co., Ltd. Address before: 528415, Guangdong, Zhongshan Province, Zhongshan City, Jiangsu Province, the base of Hefeng Industrial Zone, Tianjin city Dick force Lighting Appliance Co., Ltd. Patentee before: Shi Mingfeng |
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