CN201657430U - Movable self-adapted LED lighting device - Google Patents
Movable self-adapted LED lighting device Download PDFInfo
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- CN201657430U CN201657430U CN2010201617627U CN201020161762U CN201657430U CN 201657430 U CN201657430 U CN 201657430U CN 2010201617627 U CN2010201617627 U CN 2010201617627U CN 201020161762 U CN201020161762 U CN 201020161762U CN 201657430 U CN201657430 U CN 201657430U
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Abstract
The utility model discloses a movable self-adapted LED lighting device, which comprises a power supply circuit and an LED. The device includes two modules; a first module comprises a photoelectric sensor, an amplifying circuit, a control circuit, an electronic switch and a wireless transmitting circuit; a second module comprises a photoelectric sensor, a control circuit, an electronic switch and an LED; in the second module, the photoelectric sensor converts optical signals emitted by the first module into electric signals and transmits the electric signals to the control circuit; the control circuit adopts PWM technique to control brightness of the LED through the electronic switch. The photoelectric sensor in the first module is an illuminance sensor. The movable self-adapted LED lighting device has the advantages of realizing removability of the photoelectric sensor, leading illuminance of the sensor in optional lighting areas to reach a proper specific value, reflecting optical brightness of the illuminance sensor in the lighting areas, realizing automatically adjusting of light source brightness to compensate shortage of natural light illuminance, and having brightness liner adjusting function.
Description
Technical field
The utility model relates to a kind of green illumination energy saver, particularly removable adaptive LED lighting device.
Background technology
White light LEDs has, and volume is little, power consumption is low, the life-span is long, reaction speed is fast, but environmental protection planar package easy exploiting becomes advantages such as compact product, be fast-developing both at home and abroad in recent years a kind of novel solid light source, its development potentiality in illumination market is huge.
From the I-V characteristic of LED as can be known, its curve is non-linear, and the voltage of 0.1V can cause the electric current of 100～200mA to change, and is wayward, and LED has negative temperature coefficient feature, so generally LED is said that becoming is current control device.Electric current-luminous flux characteristic is the important indicator of LED as illumination Design, and in the rated current scope, the luminous flux of LED output becomes positive correlation with the PN junction current value, so the constant-current source control mode is the prevailing model that present LED drives.
The LED dimming controlling method of pulse width modulation (PWM), be with switch operating frequency greater than 100Hz, change the brightness adjustment control that the pulse duty factor of LED drive current is managed LED in fact with the method for pulse-width modulation, selecting for use greater than 100Hz switch brightness adjustment control frequency mainly is for fear of human eye perceives to the light modulation scintillation, under the PWM of LED brightness adjustment control, the luminosity of LED is proportional to the pulse duty factor of PWM, under this dimming controlling method, can keep the glow color of LED constant in than scope in the height light modulation.Utilize its these characteristics, the ambient brightness around measuring by optical sensor changes the luminosity of LED according to measured value, realizes keeping surrounding environment brightness in certain level, constructs to allow the buoyant workplace of people.So not only build a home from home, and can make full use of natural illumination, energy savings greatly with constant luminance.
Present existing adaptive LED lighting device has been realized automatic adjusting light-source brightness to a certain extent remedying the deficiency of natural daylight illumination, and the brightness linear regulating function, has the energy-conserving and environment-protective effect.Its shortcoming is: its photoelectric sensor partial fixing is installed, has immovability, therefore the brightness information that its photoelectric sensor can only the feedback transducer position, brightness information that can not other positions, actual response field of illumination, the brightness that also can not regulate other positions simultaneously automatically is to required brightness.
Summary of the invention
The purpose of this utility model is to provide a kind of removable adaptive LED lighting device, and this device can react and regulate other field of illumination brightness information.
The technical solution of the utility model is: a kind of removable adaptive LED lighting device comprises power circuit, LED; This device is divided into two modules, and module one comprises photoelectric sensor, amplifying circuit, control circuit, electronic switch and radio transmitter, and module two comprises photoelectric sensor, control circuit, electronic switch, LED; In the module one, photoelectric sensor is converted into voltage signal with light signal and exports amplifying circuit to, voltage signal exports control circuit to after amplifying through amplifying circuit, control circuit output control signal is given electronic switch, make electronic switch control radio transmitter outwards launch wireless signal, in the module two, photoelectric sensor is converted to the signal of telecommunication with the light signal that sends in the module one and exports control circuit to, control circuit adopts the PWM technology, through electronic switch control LED brightness.Photoelectric sensor in the described module one is an illuminance sensor.Electronic switch in the described module one is the power MOSFET transistor.Radio transmitter Radio infrared radiating circuit in the described module one.Control circuit in the described module one comprises the single-chip microcomputer and the power supply of band A/D translation function.Photoelectric sensor in the described module two is the infrared ray one receiving tube transducer of numeral output.Control circuit in the described module two comprises the single-chip microcomputer and the power supply of band PWM output function.Electronic switch in the described module two is the power MOSFET transistor.
Advantage of the present utility model is: the mobility that has realized photoelectric sensor, can make the illuminance at place, inner sensor place, any field of illumination reach suitable particular value, the brightness information at place, illuminance sensor place in the reaction field of illumination, and realized automatic adjusting light-source brightness remedying the deficiency of natural daylight illumination, and brightness linear regulating function.The present invention has simple in structure, cheap, radiationless, simple operation and other advantages have positive effect aspect the light pollution cutting down the consumption of energy, reduce.
Description of drawings
Fig. 1 is the removable adaptive LED illuminator structure of a utility model schematic diagram.
Embodiment
Removable adaptive LED lighting device as shown in Figure 1 comprises power circuit, and system is divided into two modules.Module one comprises photoelectric sensor 1, amplifying circuit 2, control circuit 3, electronic switch 4 and radio transmitter 5, and module two comprises photoelectric sensor 6, control circuit 7, electronic switch 8 and LED 9; In the module one, photoelectric sensor 1 is converted into voltage signal with light signal and exports amplifying circuit 2 to, voltage signal exports control circuit 3 to after amplifying through amplifying circuit 2, control circuit 3 output control signals are given electronic switch 4, make outwards emission wireless signal of electronic switch 4 control radio transmitters 5, in the module two, photoelectric sensor 6 is converted to the signal of telecommunication with the light signal that sends in the module one and exports control circuit 7 to, control circuit adopts the pulse width modulation (PWM) technology, through electronic switch 8 control LED 9 brightness.Module one is separated mutually with module two, make module one have mobility, control circuit described in the module one comprises single-chip microcomputer and power supply, the signal input part of single-chip microcomputer and output are respectively the input and the output of control circuit, control circuit described in the module two comprises single-chip microcomputer and power supply, and the signal input part of single-chip microcomputer and output are respectively the input and the output of control circuit.
Claims (8)
1. a removable adaptive LED lighting device comprises power circuit, LED; It is characterized in that: this device is divided into two modules, and module one comprises photoelectric sensor, amplifying circuit, control circuit, electronic switch and radio transmitter, and module two comprises photoelectric sensor, control circuit, electronic switch, LED; In the module one, photoelectric sensor is converted into voltage signal with light signal and exports amplifying circuit to, voltage signal exports control circuit to after amplifying through amplifying circuit, control circuit output control signal is given electronic switch, make electronic switch control radio transmitter outwards launch wireless signal, in the module two, photoelectric sensor is converted to the signal of telecommunication with the light signal that sends in the module one and exports control circuit to, control circuit adopts the PWM technology, through electronic switch control LED brightness.
2. according to the described removable adaptive LED lighting device of claim 1, it is characterized in that: the photoelectric sensor in the described module one is an illuminance sensor.
3. according to the described removable adaptive LED lighting device of claim 1, it is characterized in that: the electronic switch in the described module one is the power MOSFET transistor.
4. according to the described removable adaptive LED lighting device of claim 1, it is characterized in that: the radio transmitter Radio infrared radiating circuit in the described module one.
5. according to the described removable adaptive LED lighting device of claim 1, it is characterized in that: the control circuit in the described module one comprises the single-chip microcomputer and the power supply of band A/D translation function.
6. according to the described removable adaptive LED lighting device of claim 1, it is characterized in that: the photoelectric sensor in the described module two is the infrared ray one receiving tube transducer of numeral output.
7. according to the described removable adaptive LED lighting device of claim 1, it is characterized in that: the control circuit in the described module two comprises the single-chip microcomputer and the power supply of band PWM output function.
8. according to the described removable adaptive LED lighting device of claim 1, it is characterized in that: the electronic switch in the described module two is the power MOSFET transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201617627U CN201657430U (en) | 2010-04-12 | 2010-04-12 | Movable self-adapted LED lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201617627U CN201657430U (en) | 2010-04-12 | 2010-04-12 | Movable self-adapted LED lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201657430U true CN201657430U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201617627U Expired - Fee Related CN201657430U (en) | 2010-04-12 | 2010-04-12 | Movable self-adapted LED lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201657430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102905421A (en) * | 2012-09-14 | 2013-01-30 | 东莞中山大学研究院 | Method and device for realizing automatic adjustment of LED (light-emitting diode) lamps |
| CN103200741A (en) * | 2013-04-10 | 2013-07-10 | 武汉华炬光电有限公司 | Light emitting diode (LED) intelligent illuminating system based on environmental illumination self-adaption technology |
-
2010
- 2010-04-12 CN CN2010201617627U patent/CN201657430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102905421A (en) * | 2012-09-14 | 2013-01-30 | 东莞中山大学研究院 | Method and device for realizing automatic adjustment of LED (light-emitting diode) lamps |
| CN103200741A (en) * | 2013-04-10 | 2013-07-10 | 武汉华炬光电有限公司 | Light emitting diode (LED) intelligent illuminating system based on environmental illumination self-adaption technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20160412 |
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| CF01 | Termination of patent right due to non-payment of annual fee |