CN105300666A - LED lamp strip detection device and method - Google Patents
LED lamp strip detection device and method Download PDFInfo
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- CN105300666A CN105300666A CN201510744434.7A CN201510744434A CN105300666A CN 105300666 A CN105300666 A CN 105300666A CN 201510744434 A CN201510744434 A CN 201510744434A CN 105300666 A CN105300666 A CN 105300666A
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Abstract
The invention relates to an LED lamp strip detection device and a method. The LED lamp strip detection device comprises a detection carrier device, a power supply device, digital camera, and a control device. The detection carrier device comprises a positioning device, a lamp strip detection plate arranged on the positioning device and a lamp strip carrier positioned on the positioning device; the lamp strip carrier is provided with a plurality of lamp strips; a plurality of LED lamps are arranged under the lamp strip carrier; a light transmitting device is arranged in a light source emitting direction of each LED lamp; the power supply device is used for supplying power to the LED lamps; the digital camera is used for capturing the light transmitted by a light guiding device; and the control device is connected to the digital camera and can receive and process the image transmitted by the digital camera. The LED lamp strip detection device and the method can test multiple strips (10-60 strips) at the same time, can improve the speed by 10-60 times compared with the manual work, and cannot be affected by the uncertainty of the human factor. The testing specification uses the numerical value as the standard, which guarantees the stability and the accuracy. The invention satisfies the requirement of the LED lamp strip on-line test, saves the cost, improves the efficiency and guarantees the quality.
Description
Technical field
The present invention relates to a kind of LED lamp bar pick-up unit and method.
Background technology
LED lamp bar test be all generally artificial plug-in again with the mode of visual inspection observe LED light on and off, bright secretly, the problem such as colour cast, its detection speed is slow and resolution characteristic is poor, simultaneously highlighted LED is large to human eye injury, for automatic test approach, industry generally adopts mechanical type by a mode for test, although precision is high, test speed is slower than manual testing, can not be used for the production test of industry spot.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of LED lamp bar pick-up unit and method of new structure, make it have more value in industry.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide a kind of LED lamp bar pick-up unit and method.
Technical scheme of the present invention is as follows:
A kind of LED lamp bar pick-up unit, is characterized in that, comprise,
One test carrier device, comprise by locating device, be arranged on the lamp bar test board of described locating device, and be positioned the lamp bar carrier composition of described locating device, described lamp bar carrier is provided with multiple lamp bar, described below is provided with multiple LED, and described each LED light source injection direction is provided with a light transmission device;
One supply unit, for powering to LED;
One digital camera, for catching the light of guiding device injection;
One control device, connects described digital camera, and can receive and process the image of described digital camera transmission.
Further, described carrier arrangement is provided with power connector, described power connector is PIN needle or pcb board, and one end of described power supply PIN needle or pcb board is connected on the pin of lamp bar, and the other end of PIN needle or pcb board is connected with lamp bar power module.
Further, described power connector is preferably arranged on described lamp bar test board inside.
Further, described power connector is preferably arranged on above described lamp bar.
Preferably described light transmission device is light guide, described light guide is fixed on lamp bar carrier, described light guide comprises catoptron and is positioned at the light hole on LED lamp bar test board, described catoptron is fixed on lamp bar carrier, the reflecting surface of catoptron is positioned in the lateral light paths of LED, described light hole is positioned on the reflected light path of LED, is irradiated to imaging digital camera for making the LED lamplight reflected from catoptron through lamp bar test board.
Further, preferably described light transmission device is light guide, described light guide is fixed on lamp bar carrier, described light guide comprises refraction photoconduction and is positioned at the light hole of lamp bar carrier, described refraction photoconduction is fixed on lamp bar carrier, the reflecting surface of refraction photoconduction is positioned in the lateral light paths of LED, and described light hole is positioned on the reflected light path of LED, is irradiated to imaging digital camera for making the LED lamplight reflected from refraction photoconduction through lamp bar test board.
Further, preferably described light transmission device is atomization light guide, and described light guide is arranged on immediately below described LED, is atomized the light transmission lamp bar test board irradiated from described LED etc. and is irradiated to imaging digital camera.
A kind of LED light bar detection method, is characterized in that, comprise the steps:
Digital camera is fixed on the below of lamp bar carrier,
Multiple lamp bar is fixed on lamp bar carrier,
Lamp bar carrier is positioned lamp bar test board by locating device, and lamp batten pin is directly or indirectly connected with lamp bar power module, and the control end of lamp bar power module is connected to calculation control unit;
By lamp bar test board, LED is lighted, switches lamp bar power module to various test mode, take pictures respectively with digital camera and obtain the digital picture of lamp bar LED under different power supply state,
Described digital camera is connected with calculation control unit, by correlated digital image transmission to calculation control unit, analyzes the related optical information of each LED to be measured under drawing each state,
Calculate each measured value of state of described each LED to be measured and the difference of each status criteria value respectively,
According to the specification limit of each LED lamp under each state of definition determine each LED be defective products still for certified products,
Determine the particular location of the LED of testing as defective products.By such scheme, the present invention at least has the following advantages:
The method and device can be tested many (10 ~ 60) simultaneously, speed improves 10 ~ 60 times than artificial, and do not have the uncertainty of human factor to affect, test specification take numerical value as standard, ensure that stability and precision, the on-line testing requirement of LED lamp bar can be met completely, save cost, raise the efficiency, and guaranteed quality.
Illustrate it is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of instructions, coordinate accompanying drawing to be described in detail as follows with preferred embodiment of the present invention below.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the invention;
Fig. 2 is the structural representation of second embodiment of the invention;
Fig. 3 is the structural representation of third embodiment of the invention.
Fig. 4 is the structural representation of fourth embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
As shown in Figure 1, side-emitting LED lamp bar proving installation, comprise lamp bar 1, lamp bar carrier 6, lamp bar power module 7, lamp bar test board 2, digital camera 8 and calculation control unit 9, described lamp bar 1 there is multiple LED 5, lamp bar 1 is many, described lamp bar 1 is fixed on lamp bar carrier 6, described lamp bar power module 7 is powered indirectly by lamp bar test board 2 pairs of lamp bars 1, the lamp batten pin 4 of lamp bar 1 is connected on lamp bar test board 2, the power end of lamp bar test board 2 is connected with lamp bar power module 7, the control end of described lamp bar power module 7 is connected to calculation control unit 9.Embodiment, as shown in Figure 1, lamp bar test board 2 is fixed with power connector 3, and power connector 3 one end is tied on the lamp batten pin 4 of lamp bar 1, and power supply connects 3 other ends and is connected with lamp bar power module 7.Lamp bar carrier 6 has light transmission device 10, and lamp bar test board 2 is positioned the top of lamp bar carrier 6 by locating device 11, and locating device 11 comprises reference column, and the two ends of reference column are individually fixed on lamp bar carrier 6 and lamp bar test board 2.Digital camera 8 is fixed on the top of lamp bar test board 2, and on lamp bar 1, the light of LED 5 is irradiated on digital camera 8 by lamp bar test board 2.Preferably light transmission device 10 is light guide, light guide 10 is fixed on lamp bar carrier 6, the light hole 13 that light guide comprises catoptron 101 and is positioned on LED lamp bar test board, described catoptron 101 is fixed on lamp bar carrier 6, the reflecting surface of catoptron is positioned in the lateral light paths of LED, described light hole is positioned on the reflected light path of LED, is irradiated to imaging digital camera for making the LED lamplight reflected from catoptron through lamp bar test board.Digital camera 8 is connected with calculation control unit 9, because LED lamp bar test needs to test high/low electric current two kinds of situations, the illuminance of described LED to be measured 5 is then controlled by calculation control unit 9, the state of LED 5 to be measured is made to be set to bright or to go out, calculation control unit 9 processes the image of above-mentioned digital camera 8 shooting, analyze the related optical information of each LED lamp 5, described related optical information comprises position and brightness, color or/and light emitting region information.Each LED lamp comprises brightness in the position of LED and brightness, each color value, light emitting region, light emitting region or/and the maximal value, minimum value, mean value, standard deviation etc. of color value in the related optical information of each state.Through necessarily processing the measured value obtaining the bright of LED 5 to be measured or go out, calculating the difference of the bright of described LED to be measured 5 or the measured value gone out and standard value respectively, is that defective products is still certified products and determines its particular location according to the specification limit determination LED 5 of the certified products of definition.Each related optical information for above-mentioned every LED lamp can be calculated by extracting directly or set formula, obtain the measured value of each LED lamp each feature under each state of its correspondence, and the standard value comparing difference of each feature under each state that LED lamp is corresponding therewith.Still its particular location is determined for certified products for defective products according to the specification limit determination LED 5 of each feature under each state of each LED lamp of definition.
Concrete measuring method is as follows:
Digital camera is fixed on the below of lamp bar carrier,
Multiple lamp bar is fixed on lamp bar carrier,
Lamp bar carrier is positioned lamp bar test board by locating device, and lamp batten pin is directly or indirectly connected with lamp bar power module, and the control end of lamp bar power module is connected to calculation control unit;
By lamp bar test board, LED is lighted, switches lamp bar power module to various test mode, take pictures respectively with digital camera and obtain the digital picture of lamp bar LED under different power supply state,
Described digital camera is connected with calculation control unit, by correlated digital image transmission to calculation control unit, analyzes the related optical information of each LED to be measured under drawing each state,
Calculate each measured value of state of described each LED to be measured and the difference of each status criteria value respectively,
According to the specification limit of each LED lamp under each state of definition determine each LED be defective products still for certified products,
Determine the particular location of the LED of testing as defective products.
Embodiment 2
Embodiment 2 difference from Example 1 is catoptron 101 and light guide 10 to replace with a refraction photoconduction 10.
Embodiment 3
Embodiment 3 difference from Example 2 is below LED lamp bar test board 2 being arranged on lamp bar carrier 6, and above lamp bar carrier 6, arranging pressing plate 15 and pressure head 16 ensureing electrical connection for fixedly pushing down lamp bar pin.
Embodiment 4
Embodiment 4 and embodiment 3 different from go out to be LED 5 give out light direction for directly under, light transmission device 10 is set directly at the below of LED 5.
The above is only the preferred embodiment of the present invention; be not limited to the present invention; should be understood that; for those skilled in the art; under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (8)
1. a LED lamp bar pick-up unit, is characterized in that, comprises,
One test carrier device, comprise by locating device, be arranged on the lamp bar test board of described locating device, and be positioned the lamp bar carrier composition of described locating device, described lamp bar carrier is provided with multiple lamp bar, described below is provided with multiple LED, and described each LED light source injection direction is provided with a light transmission device;
One supply unit, for powering to LED;
One digital camera, for catching the light of guiding device injection;
One control device, connects described digital camera, and can receive and process the image of described digital camera transmission.
2. a kind of LED lamp bar pick-up unit according to claim 1, it is characterized in that: described carrier arrangement is provided with power connector, described power connector is PIN needle or pcb board, one end of described power supply PIN needle or pcb board is connected on the pin of lamp bar, and the other end of PIN needle or pcb board is connected with lamp bar power module.
3. want a kind of LED lamp bar pick-up unit described in 2 according to right, it is characterized in that: it is inner that described power connector is preferably arranged on described lamp bar test board.
4. want a kind of LED lamp bar pick-up unit described in 2 according to right, it is characterized in that: described power connector is preferably arranged on above described lamp bar.
5. a kind of LED lamp bar pick-up unit according to claim 1, it is characterized in that: preferably described light transmission device is light guide, described light guide is fixed on lamp bar carrier, described light guide comprises catoptron and is positioned at the light hole on LED lamp bar test board, described catoptron is fixed on lamp bar carrier, the reflecting surface of catoptron is positioned in the lateral light paths of LED, described light hole is positioned on the reflected light path of LED, is irradiated to imaging digital camera for making the LED lamplight reflected from catoptron through lamp bar test board.
6. a kind of LED lamp bar pick-up unit according to claim 1, it is characterized in that: preferably described light transmission device is light guide, described light guide is fixed on lamp bar carrier, described light guide comprises refraction photoconduction and is positioned at the light hole of lamp bar carrier, described refraction photoconduction is fixed on lamp bar carrier, the reflecting surface of refraction photoconduction is positioned in the lateral light paths of LED, described light hole is positioned on the reflected light path of LED, is irradiated to imaging digital camera for making the LED lamplight reflected from refraction photoconduction through lamp bar test board.
7. a kind of LED lamp bar pick-up unit according to claim 1, it is characterized in that: preferably described light transmission device is atomization light guide, described light guide is arranged on immediately below described LED, is atomized the light transmission lamp bar test board irradiated from described LED etc. and is irradiated to imaging digital camera.
8. a LED light bar detection method, is characterized in that, comprises the steps:
Digital camera is fixed on the below of lamp bar carrier,
Multiple lamp bar is fixed on lamp bar carrier,
Lamp bar carrier is positioned lamp bar test board by locating device, and lamp batten pin is directly or indirectly connected with lamp bar power module, and the control end of lamp bar power module is connected to calculation control unit;
By lamp bar test board, LED is lighted, switches lamp bar power module to various test mode, take pictures respectively with digital camera and obtain the digital picture of lamp bar LED under different power supply state,
Described digital camera is connected with calculation control unit, by correlated digital image transmission to calculation control unit, analyzes the related optical information of each LED to be measured under drawing each state,
Calculate each measured value of state of described each LED to be measured and the difference of each status criteria value respectively,
According to the specification limit of each LED lamp under each state of definition determine each LED be defective products still for certified products,
Determine the particular location of the LED of testing as defective products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510744434.7A CN105300666A (en) | 2015-11-05 | 2015-11-05 | LED lamp strip detection device and method |
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| CN201510744434.7A CN105300666A (en) | 2015-11-05 | 2015-11-05 | LED lamp strip detection device and method |
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Cited By (5)
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| CN106990045A (en) * | 2017-04-19 | 2017-07-28 | 浙江理工大学 | A kind of polishing identifying device of auxiliary machinery vision plug seedlings quality testing |
| CN108983117A (en) * | 2018-05-23 | 2018-12-11 | 苏州日和科技有限公司 | A kind of LED light bar lights mechanism for testing |
| CN109682427A (en) * | 2019-01-30 | 2019-04-26 | 广东大唐永恒智能科技有限公司 | Vision detection system and the visible detection method for applying it |
| CN110488515A (en) * | 2019-08-06 | 2019-11-22 | 深圳市利航电子有限公司 | The LED light bar detection device and method of backlight |
| CN111929032A (en) * | 2020-09-23 | 2020-11-13 | 歌尔股份有限公司 | Light source detection method, detection device and readable storage medium |
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| CN111929032A (en) * | 2020-09-23 | 2020-11-13 | 歌尔股份有限公司 | Light source detection method, detection device and readable storage medium |
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Application publication date: 20160203 |
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