CN100562761C - Intelligent light-emitting diode (LED) car lamp lighting quality on-line detecting system - Google Patents
Intelligent light-emitting diode (LED) car lamp lighting quality on-line detecting system Download PDFInfo
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- CN100562761C CN100562761C CNB2006100280436A CN200610028043A CN100562761C CN 100562761 C CN100562761 C CN 100562761C CN B2006100280436 A CNB2006100280436 A CN B2006100280436A CN 200610028043 A CN200610028043 A CN 200610028043A CN 100562761 C CN100562761 C CN 100562761C
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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
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- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
Intelligent light emitting diode (LED) vehicle light illumination quality on-line detection system, comprise industrial computer, display, operation keyboard, camera bellows top opening part connects a car light mold, and the car light face down is fixedly placed in the car light mold, and the camera bellows bottom is equipped with image sensor; Each image sensor links to each other with image collection card respectively, and image collection card links to each other with industrial computer.During detection, be divided into several zonules, calculate each zonule gray average and regional location, set the gray scale tolerance value, be made into standard form earlier to the LED car light of the standard image that pans, and with panoramic image; Detected LED car light is calculated each zonule gray average and regional location according to same procedure, be made into the comparison template; Check the gray average on the corresponding region one by one and compare, if margin tolerance with interior be qualified, otherwise be defective.
Description
Technical field
The present invention relates to the quality testing of automobile lighting system, be specifically related to detection system and detection method with the computing machine online detection light emitting diode of vision detection technology (LED) car light quality.
Background technology
Novel, intelligentized LED car light is one of the most dazzling product in the automotive electronicsization in the world.In automobile lighting system, vehicle lamp assembly is combination lighting parts, also is the critical component of traffic safety.The manufacturing of light assembly and installation all have the corresponding standard standard, and the adjustment of process strictness is to guarantee the light conformance with standard before dispatching from the factory.The quality testing of vehicle lamp assembly comprises the detection to illumination performance, light source power and part assembly quality.But up to the present, domestic automobile manufacturing enterprise to LED after the quality testing of lamp assembly, the individual event of only carrying out illumination performance detects, and is the method that adopts the artificial visually examine, has directly influenced the quality inspection and the production efficiency of product.The needs that can not adapt to the auto industry develop rapidly.
Summary of the invention
For overcoming above-mentioned shortcoming, the present invention has designed a kind of intellectualized LED vehicle light illumination quality on-line detection system, its basic ideas are: with the quality testing of lamp assembly behind advanced person's the Computer Vision Detection technology introducing LED, by systematic parameter is set, can realize the car light of different model is carried out the online detection of dynamic of lighting quality, have flexibility, the intellectuality of height.Concrete scheme is: according to the vision detection technology principle, design effective image capturing system, on the basis that obtains LED back light illumination image, research and utilization digital image processing techniques, the lighting quality of real-time analysis car light, and the inefficacy and the zone thereof of judgement LED vehicle light illumination.
Intelligent light emitting diode (LED) vehicle light illumination quality on-line detection system, comprise industrial computer, display, operation keyboard, it is characterized in that: a camera bellows is arranged, camera bellows top opening part connects a car light mold, the car light face down is fixedly placed in the car light mold, and the camera bellows bottom is equipped with image sensor; Each image sensor links to each other with image collection card respectively, and image collection card links to each other with industrial computer.
Detection method: whole process is computerizedd control, according to the vision detection technology principle, design effective image acquistion system, it is characterized in that: at first light standard LED car light, to the LED car light of the standard image that pans, and panoramic image is divided into several zonules, calculates each zonule gray average and regional location, set the gray scale tolerance value, be made into standard form; Light the LED car light to be detected image that pans, panoramic image is divided into several zonules, calculate each zonule gray average and regional location, produce the comparison template by identical principle; Check the gray average on the corresponding region one by one and compare, if margin tolerance with interior be qualified, otherwise be defective.
The present invention adopts advanced virtual instrument technique and stable Digital Image Processing algorithm, makes system can finish the online automatic detection of various model car lights by computer screen setting or software adjustment etc.Can accurately judge the inefficacy and the zone thereof of LED vehicle light illumination, detection speed is fast, the reliability height.For rapid development of automobile industry provides modern quality inspection means.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in detail.
Accompanying drawing 1 is a system principle synoptic diagram of the present invention;
Accompanying drawing 2 is that standard form of the present invention is made process flow diagram;
Accompanying drawing 3 is that the present invention compares the template construct process flow diagram.
1. car light, 2. car light mold, 3. imageing sensor, 4. camera bellows, 5. image collection card, 6. display, 7. industrial computer.
Embodiment
Industrial computer is selected high performance industrial microcomputer for use, make detection system can be under the workshop environment operate as normal, can reach the high speed processing of image information simultaneously again, satisfy the requirement of detection speed; Image sensor is selected industrial high sensitivity, high-resolution digital camera for use, can realize detection to the lighting quality of different size car light, and be equipped with the image pick-up card of high-performance, high reliability, finish high speed acquisition and high speed pre-service to image information.The quality of picture quality has very big relation with illumination, is the reliability of guaranteeing to detect, and the present invention adopts to disturb and suppresses power supply, guarantees that the illuminator high-quality is stable.
The correct camera of adjusting, make each regional brightness of LED car light of taking in the image reach basic evenly till.Import the model and the parameter of detected LED car light by operation keyboard, computing machine is preserved information.
The first step, the production standard template: at first light standard LED car light, two digital cameras image that pans passes to image collection card, and computing machine is preserved information; Intercept a field of illumination of LED car light then, computing machine judges according to the parameter of setting whether this zone belongs to the unconspicuous picture information in clear zone or dark space, and can carry out necessary reinforcement and handle; Calculate by software programming, obtain this regional gray average and regional location; Set this regional gray scale tolerance value again; Repeat above step, obtain the information such as position, gray average, tolerance value of all field of illuminations and be kept in the computing machine.
Second step, make the comparison template: at first light LED car light to be detected, two digital cameras image that pans, pass to image collection card, and preservation information, position, field of illumination according to the standard form selection, the image of intercepting comparison template relevant position, the parameter of setting according to standard form judges whether and will strengthen handling to image, after finishing this step, ask for the gray average of this area image by computing machine, with the average of standard form relatively, if be qualified in margin tolerance, otherwise be defective.Computer screen 6 will show all testing results.
Repeat above step, obtain position, gray average, the information such as whether qualified of all field of illuminations and preserve.The LED car light of different size model only need be imported the car light model during detection, sets new parameter, repeats said method, can finish the detection to all vehicle light illumination quality.
Claims (2)
1. intelligent light-emitting diode (LED) car lamp lighting quality on-line detecting system, comprise industrial computer, display, operation keyboard, it is characterized in that: a camera bellows is arranged, camera bellows top opening part connects a car light mold, the car light face down is fixedly placed in the car light mold, and the camera bellows bottom is equipped with imageing sensor; Each imageing sensor links to each other with image pick-up card respectively, and image pick-up card links to each other with industrial computer.
2 intelligent light-emitting diode (LED) car lamp lighting quality on-line detecting systems according to claim 1, whole process is computerizedd control, according to the vision detection technology principle, design effective image capturing system, it is characterized in that: at first light standard LED car light, and photographing panorama picture, panoramic picture is divided into several zonules, calculate each zonule gray average and regional location, set the gray scale tolerance value, be made into standard form; Light detected LED car light, photographing panorama picture, position, field of illumination according to the standard form selection, the image of intercepting comparison template relevant position, the parameter of setting according to standard form judge whether and will strengthen handling to image, finish this step after, ask for the gray average of this area image by computing machine, comparing with the average of standard form, if be qualified in margin tolerance, otherwise is defective; Repeat above step, obtain position, gray average, the information such as whether qualified of all field of illuminations and preserve.
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| CNB2006100280436A CN100562761C (en) | 2006-06-22 | 2006-06-22 | Intelligent light-emitting diode (LED) car lamp lighting quality on-line detecting system |
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| CNB2006100280436A CN100562761C (en) | 2006-06-22 | 2006-06-22 | Intelligent light-emitting diode (LED) car lamp lighting quality on-line detecting system |
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Cited By (1)
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| CN104344944A (en) * | 2014-10-23 | 2015-02-11 | 上海维锐智能科技有限公司 | Photoelectrical detecting system of LED (light emitting diode) digital tube and photoelectrical detecting method of photoelectrical detecting system |
| CN104316887B (en) * | 2014-11-10 | 2017-02-15 | 中国人民解放军海军工程大学 | Performance test method and device for laser xenon lamp |
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| CN105387998A (en) * | 2015-10-22 | 2016-03-09 | 苏州耀腾光电有限公司 | LED vehicle lamp integrated image detection equipment |
| CN105676099B (en) * | 2016-01-18 | 2018-10-19 | 富顺光电科技股份有限公司 | A kind of system and method judging LED component reliability based on electrology characteristic |
| CN109425426A (en) * | 2017-08-30 | 2019-03-05 | 南京钧乔行汽车灯具有限公司 | A kind of automobile lamp light detection method |
| CN108627322A (en) * | 2018-02-08 | 2018-10-09 | 常州星宇车灯股份有限公司 | A kind of matrix LED car light on-line detecting system |
| CN108469591A (en) * | 2018-03-22 | 2018-08-31 | 上海康斐信息技术有限公司 | A kind of detection method and system of RGB LED displays |
| CN108801599B (en) * | 2018-07-24 | 2024-02-02 | 常州星宇车灯股份有限公司 | Matrix type LED car lamp detection method and device |
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