CN103697810A - Visual detector for indicating value precision of car instrument board - Google Patents
Visual detector for indicating value precision of car instrument board Download PDFInfo
- Publication number
- CN103697810A CN103697810A CN201210365898.3A CN201210365898A CN103697810A CN 103697810 A CN103697810 A CN 103697810A CN 201210365898 A CN201210365898 A CN 201210365898A CN 103697810 A CN103697810 A CN 103697810A
- Authority
- CN
- China
- Prior art keywords
- instrument board
- algorithm
- instrument panel
- indicating value
- car instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention belongs to the technical field of non-contact measurements, and relates to a parallel image acquisition device and an image processing method of object region tracking and detected object extracting. In the process, multiple video cameras are controlled to shoot the instrument board synchronously and transmit the image data of the instrument board to a computer; the computer utilizes the object region tracking method to quickly locate the region where the detected object is; an improved Hough transform algorithm is adopted to extract the instrument pointer position and the indicating value measurement is performed. The parallel analysis technology is combined with visual detection, and the novel method for judging and reading the indicating value of the car instrument board in parallel is provided. The method is high in the measurement precision and short in the detection time, and can be applied to quality final inspection before delivery and assembly of the car instrument board.
Description
Technical field
The invention belongs to noncontacting measurement technical field, can be used for the quality inspection eventually that Car Instrument Panel dispatches from the factory before assembling.
Technical background
Car Instrument Panel is indispensable ingredient in automobile, is responsible for recording the various data of automobile, and it mainly comprises speedometer, engine speed indicator, fuel gauge, water-thermometer, voltage table etc.Yet car instrument board component is more, before the assembling of dispatching from the factory, to carry out inferior quality inspection eventually.Whether test item comprises: detect the pointer of each table and the index error between all target scales, detect all signal alarm lamps and some illuminating lamps and damage or neglected loading.Current instrument panel production line at home extensively adopts the method for artificial observation, by workman, estimated show state of line ball situation between each list index and scale and various pilot lamp, charactron etc., judge that whether product quality is qualified, the subjective factor that this method is subject to people affects as proofer's observation angle, observed range and degree of fatigue etc., error is large, poor reliability.At present, inefficient artificial naked eyes detect with Car Instrument Panel to be produced in enormous quantities and has formed more outstanding contradiction, therefore domestic Car Instrument Panel production firm is in the urgent need to a kind of efficient Car Instrument Panel indicating accuracy sight surveymeter, to substitute manual detection mode, fascia is detected, and then overcome the various errors that manual detection causes, improve product precision and efficiency of detecting.
Summary of the invention
1. Car Instrument Panel indicating accuracy sight surveymeter comprises parallel image harvester, image pick-up card, indicating accuracy's detection system, wherein parallel image harvester comprises and is arranged on adjustable supports Shang No. tri-video cameras, and indicating accuracy's detection system comprises target area following algorithm, detected target extraction algorithm, geometric measurement algorithm.
2. target area following algorithm, is characterized in that utilizing fabrication hole and the relatively-stationary feature of detected regional location on instrument panel, the locus error that dynamically rectifier dash board is put.
3. detected target extraction algorithm, is characterized in that utilizing instrument panel pointer feature, by improved Hough transformation algorithm, target is carried out to rapid extraction.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention
Fig. 2 is the schematic diagram of embodiments of the invention
Embodiment
The present invention is achieved by the following technical solutions, and concrete grammar step is as follows:
1. in order to guarantee the fast detecting of Car Instrument Panel, designed adjustable supports shelf structure, No. three video cameras are installed on bracing frame, by adjusting knob, made video camera in the best state of making a video recording, multichannel camera is convenient to parallel image collection simultaneously, to improve detection speed.
2. due to the putting position of instrument panel, not necessarily be in standard camera position, image by camera acquisition can not correct complete demonstration, adopt fabrication hole and the relatively-stationary feature of detected regional location on instrument panel, the locus error that dynamically rectifier dash board is put, is convenient to the accurate location of target on instrument panel.
3. improved Hough transformation algorithm, image space is become to " many-one " to the mapping mode of parameter space from " one-to-many ", reduce storage space and reduced computation complexity, this algorithm is only accumulated computing to the possible straight line parameter by two unique points at least simultaneously, reduced to a certain extent the blindness of traditional Hough mapping algorithm, therefore save system resource and the computing time taking, can carry out large-scale production testing.
Claims (3)
1. Car Instrument Panel indicating accuracy sight surveymeter comprises parallel image harvester, image pick-up card, indicating accuracy's detection system, wherein parallel image harvester comprises and is arranged on adjustable supports Shang No. tri-video cameras, and indicating accuracy's detection system comprises target area following algorithm, detected target extraction algorithm, geometric measurement algorithm.
2. target area following algorithm, is characterized in that utilizing fabrication hole and the relatively-stationary feature of detected regional location on instrument panel, the locus error that dynamically rectifier dash board is put.
3. detected target extraction algorithm, is characterized in that utilizing instrument panel pointer feature, by improved Hough transformation algorithm, target is carried out to rapid extraction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365898.3A CN103697810A (en) | 2012-09-28 | 2012-09-28 | Visual detector for indicating value precision of car instrument board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365898.3A CN103697810A (en) | 2012-09-28 | 2012-09-28 | Visual detector for indicating value precision of car instrument board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103697810A true CN103697810A (en) | 2014-04-02 |
Family
ID=50359422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210365898.3A Pending CN103697810A (en) | 2012-09-28 | 2012-09-28 | Visual detector for indicating value precision of car instrument board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103697810A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509814A (en) * | 2016-01-14 | 2016-04-20 | 苏州富强科技有限公司 | Automobile dashboard detection table |
| CN106643853A (en) * | 2015-11-02 | 2017-05-10 | 丹阳市米可汽车零部件厂 | Automobile instrument detection method |
| CN111239158A (en) * | 2020-03-13 | 2020-06-05 | 苏州鑫睿益荣信息技术有限公司 | Automobile instrument panel detection system and detection method based on machine vision |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005295244A (en) * | 2004-03-31 | 2005-10-20 | Sharp Corp | Image processor, image processing method, image processing program and storage medium with image processing program stored |
| CN101650198A (en) * | 2009-08-25 | 2010-02-17 | 广州粤能电力科技开发有限公司 | Image processing method for reading pointer type instrument indication value |
| CN102628854A (en) * | 2012-03-29 | 2012-08-08 | 赵宝明 | Automobile instrument board detection system and method |
-
2012
- 2012-09-28 CN CN201210365898.3A patent/CN103697810A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005295244A (en) * | 2004-03-31 | 2005-10-20 | Sharp Corp | Image processor, image processing method, image processing program and storage medium with image processing program stored |
| CN101650198A (en) * | 2009-08-25 | 2010-02-17 | 广州粤能电力科技开发有限公司 | Image processing method for reading pointer type instrument indication value |
| CN102628854A (en) * | 2012-03-29 | 2012-08-08 | 赵宝明 | Automobile instrument board detection system and method |
Non-Patent Citations (1)
| Title |
|---|
| 李亚杰: "汽车仪表板的计算机视觉检测系统研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643853A (en) * | 2015-11-02 | 2017-05-10 | 丹阳市米可汽车零部件厂 | Automobile instrument detection method |
| CN105509814A (en) * | 2016-01-14 | 2016-04-20 | 苏州富强科技有限公司 | Automobile dashboard detection table |
| CN111239158A (en) * | 2020-03-13 | 2020-06-05 | 苏州鑫睿益荣信息技术有限公司 | Automobile instrument panel detection system and detection method based on machine vision |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101672663B (en) | Auto meter visual detecting system based on computer and detecting method thereof | |
| CN102519400B (en) | Large slenderness ratio shaft part straightness error detection method based on machine vision | |
| CN204115690U (en) | A kind of hole location automatic detection device being applied to auto parts and components | |
| CN106500832B (en) | Low-frequency vibration calibrating device based on machine vision | |
| CN208419904U (en) | A kind of aperture measurement device and measuring device | |
| CN103438824A (en) | Large wallboard class part digitized quality detection method | |
| CN201653450U (en) | Digital display meter automatic calibration device based on machine vision | |
| CN103697810A (en) | Visual detector for indicating value precision of car instrument board | |
| CN104316530A (en) | Part detection method and application | |
| CN104111029A (en) | Machine vision detection system used for electronic product processing inspection | |
| CN110853031B (en) | Exclusive detection method for lightening of indicator light of automobile combined instrument | |
| CN114486889A (en) | Detection system and method for through hole rate of micro array holes of composite wallboard | |
| CN203116702U (en) | Missing processing detection equipment for tablet computers | |
| CN102865826A (en) | Diameter detecting device and detecting method for grinding rod | |
| CN104913721A (en) | Experimental apparatus for industrial vision sensor detection | |
| CN203502042U (en) | Multifunctional self-test instrument for automobile | |
| CN108917595A (en) | Glass on-line measuring device based on machine vision | |
| CN105136819A (en) | Method for detecting appearance contour of air conditioner | |
| CN205192381U (en) | Utensil is examined to torsion beam rear axle | |
| CN204731259U (en) | A kind of High-precision vehicle closing speed measuring system for car load long duration test | |
| CN204423093U (en) | A kind of data acquisition processing system of low speed roundness measuring equipment | |
| CN203259109U (en) | Flexible automotive glass testing tool | |
| CN202947557U (en) | Precise detecting instrument for bearing ring | |
| CN206146375U (en) | System for online dimension parameter of large -scale side's rectangular pipe of many specifications detects usefulness | |
| CN104634230A (en) | Aided detection device and detection method for valve timing of diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140402 |