CN203133236U - LED light emitting detection device - Google Patents
LED light emitting detection device Download PDFInfo
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- CN203133236U CN203133236U CN 201320031903 CN201320031903U CN203133236U CN 203133236 U CN203133236 U CN 203133236U CN 201320031903 CN201320031903 CN 201320031903 CN 201320031903 U CN201320031903 U CN 201320031903U CN 203133236 U CN203133236 U CN 203133236U
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- analog
- photosignal
- digital conversion
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- led
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Abstract
The utility model relates to an LED light emitting detection device. The LED light emitting detection device comprises a sensor used for acquiring a photoelectric signal of an LED lamp, a photoelectrical signal amplification circuit used for receiving the photoelectrical signal acquired by the sensor and carrying out amplification processing of the photoelectrical signal, an analog-to-digital conversion circuit used for receiving the photoelectrical signal amplified by the photoelectrical signal amplification circuit and carrying out analog-to-digital conversion of the amplified photoelectrical signal into a photoelectrical signal value, and a processor used for receiving the photoelectrical signal value converted by the analog-to-digital conversion circuit and carrying out magnitude contrast determination. According to the LED light emitting detection device, under on-off states of the LED lamp, secondary acquisition of an LED photoelectrical signal is carried out through the sensor, the photoelectrical signal is amplified by the photoelectrical signal amplification circuit, is converted by the analog-to-digital conversion circuit and finally is contrasted by the processor, so on-or-off of the LED lamp is detected, and the LED light emitting detection device has high detection precision under interference of environment light radiation.
Description
Technical field
The utility model relates to a kind of LED luminescence detection apparatus, relates in particular to the high LED luminescence detection apparatus of a kind of precision.
Background technology
LED is a kind of solid-state semiconductor devices, and it can directly be converted into light to electric energy.Raising along with people's living standard, the development of city lighting engineering and freeway net, requirement to room lighting, road lighting and building's Floodlighting improves day by day, therefore increasing to the demand of various LED lighting sources and LED light fixture, require also to improve constantly, also promoted simultaneously the develop rapidly of LED lighting industry, various efficient, energy-conservation LED lights also constantly occur.How estimate the quality of any LED light fixture, key is to see that it can reach which type of illuminating effect and actual serviceable life in actual applications, has only to produce the good illumination effect in actual applications and have the light fixture that is only high-quality than the LED light fixture of long life.
In the prior art, LED light fixture whether lighting under surround lighting irradiation can be used as whether one of qualified important indicator of LED, therefore, need have corresponding pick-up unit.
The utility model content
The purpose of this utility model is to overcome the defective that prior art exists, and provides a kind of precision high LED luminescence detection apparatus.
The technical scheme that realizes the utility model purpose is: the LED luminescence detection apparatus comprises:
Sensor is for the photosignal of gathering the LED lamp;
Optical signal amplification circuit, the input end of described optical signal amplification circuit is connected with the sensor output terminal, is used for the photosignal of receiving sensor collection and this photosignal is amplified processing;
Analog to digital conversion circuit, the input end of analog-digital conversion circuit as described is connected with the optical signal amplification circuit output terminal, is used for receiving through the photosignal of optical signal amplification circuit amplification and the photosignal that will amplify carrying out analog to digital conversion photosignal value;
Processor, the input end of described processor is connected with the analog to digital conversion circuit output terminal, is used for receiving through the analog-to-digital photosignal value of analog to digital conversion circuit and carries out size contrasting judgement.
Preferably, described sensor is illuminance transducer, and described sensor comprises at least 2 sensors.
Preferably, described processor is PLC.
Preferably, also comprise LED lamp mount pad, be provided with spacing between described LED lamp mount pad and the described sensor.
Preferably, described spacing is 0.5～1mm.
The utlity model has positive effect: under the situation that the LED lamp opens and closes, sensor secondary acquisition LED photosignal amplifies photosignal through optical signal amplification circuit, through analog to digital conversion circuit photosignal is changed then, compare by processor at last, whether light degree of accuracy height under the interference of surround lighting radiation thereby detect the LED lamp.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below, wherein:
Fig. 1 is structural representation of the present utility model.
Wherein: 1, LED lamp, 2, sensor, 3, optical signal amplification circuit, 4, analog to digital conversion circuit, 5, processor, 6, the LED driving power.
Embodiment
Embodiment 1
As shown in Figure 1, the utlity model has the LED luminescence detection apparatus, comprising:
Sensor 2 is for the photosignal of gathering LED lamp 1;
Optical signal amplification circuit 3, the input end of described optical signal amplification circuit 3 is connected with sensor 2 output terminals, is used for the photosignal of receiving sensor 2 collections and this photosignal is amplified processing;
Analog to digital conversion circuit 4, the input end of analog-digital conversion circuit as described 4 is connected with optical signal amplification circuit 3 output terminals, and it is the photosignal value that the photosignal that the photosignal that amplifies through optical signal amplification circuit 3 for reception also will amplify carries out analog to digital conversion;
In above-described embodiment 1, described sensor 2 is illuminance transducer, and described sensor 2 comprises first sensor and second sensor, and described processor 5 is PLC.
The course of work to present embodiment is described further below: (1) LED lamp 1 is closed, first sensor is gathered LED lamp 1 first photosignal and through optical signal amplification circuit 3 first photosignal is amplified, through analog to digital conversion circuit 4 first photosignal is converted to the first photosignal value then, is stored at last in the processor 5;
(2) LED driving power 6 driving LED lamps 1 are opened, second sensor is gathered LED lamp 1 second photosignal and through optical signal amplification circuit 3 second photosignal is amplified, through analog to digital conversion circuit 4 second photosignal is converted to the second photosignal value then, is stored at last in the processor 5;
(3) processor 5 compares the first photosignal value and the second photosignal value, if the second photosignal value greater than the first photosignal value then the LED lamp light, if the second photosignal value equal the first photosignal value then the LED lamp do not light the degree of accuracy height.
Embodiment 2
As preferred embodiment, all the other are identical with embodiment 1, and difference is, also comprises LED lamp mount pad, is provided with spacing between described LED lamp mount pad and the described sensor 2, and described spacing is 0.5～1mm.
In above-described embodiment 2, be provided with spacing between LED lamp mount pad and the sensor 2, applicable to LED lamp 1 detection of different size, convenient.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1.LED luminescence detection apparatus is characterized in that, comprising:
Sensor is for the photosignal of gathering the LED lamp;
Optical signal amplification circuit, the input end of described optical signal amplification circuit is connected with the sensor output terminal, is used for the photosignal of receiving sensor collection and this photosignal is amplified processing;
Analog to digital conversion circuit, the input end of analog-digital conversion circuit as described is connected with the optical signal amplification circuit output terminal, and it is the photosignal value that the photosignal that the photosignal that amplifies through optical signal amplification circuit for reception also will amplify carries out analog to digital conversion;
Processor, the input end of described processor is connected with the analog to digital conversion circuit output terminal, is used for receiving through the analog-to-digital photosignal value of analog to digital conversion circuit and carries out size contrasting judgement.
2. LED luminescence detection apparatus according to claim 1 is characterized in that, described sensor is illuminance transducer, and described sensor comprises at least 2 sensors.
3. LED luminescence detection apparatus according to claim 1 is characterized in that, described processor is PLC.
4. according to the arbitrary described LED luminescence detection apparatus of claim 1-3, it is characterized in that, also comprise LED lamp mount pad, be provided with spacing between described LED lamp mount pad and the described sensor.
5. LED luminescence detection apparatus according to claim 4 is characterized in that, described spacing is 0.5～1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320031903 CN203133236U (en) | 2013-01-22 | 2013-01-22 | LED light emitting detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320031903 CN203133236U (en) | 2013-01-22 | 2013-01-22 | LED light emitting detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203133236U true CN203133236U (en) | 2013-08-14 |
Family
ID=48941205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320031903 Expired - Fee Related CN203133236U (en) | 2013-01-22 | 2013-01-22 | LED light emitting detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203133236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782164A (en) * | 2019-01-25 | 2019-05-21 | 高铭电子（惠州）有限公司 | The detection method of automobile starting switch |
-
2013
- 2013-01-22 CN CN 201320031903 patent/CN203133236U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782164A (en) * | 2019-01-25 | 2019-05-21 | 高铭电子（惠州）有限公司 | The detection method of automobile starting switch |
| CN109782164B (en) * | 2019-01-25 | 2021-04-23 | 高铭电子（惠州）有限公司 | Detection method of automobile starting switch |
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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: 20130814 Termination date: 20190122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |