CN1263270A - Method for testing abnormality of electronic element and device on printed circuit board and its testing instrument - Google Patents
Method for testing abnormality of electronic element and device on printed circuit board and its testing instrument Download PDFInfo
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- CN1263270A CN1263270A CN 00102491 CN00102491A CN1263270A CN 1263270 A CN1263270 A CN 1263270A CN 00102491 CN00102491 CN 00102491 CN 00102491 A CN00102491 A CN 00102491A CN 1263270 A CN1263270 A CN 1263270A
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Abstract
The present invention discloses a method for testing abnormal electronic element on the printed circuit board and its testing instrument. It is characterized by that it utilizes image-taking device to obtain the image information from defined area on the printed circuit board surface on which the elements and devices are placed, then transfers the image information into computer to make image analysis, and compares one with standard data stored in data base so as to judge that the electronic element and device on the printed circuit board are normal or abnormal. Said invention can accurately and automatically check printed circuit board.
Description
The present invention relates to electronic devices and components abnormality test method and tester on a kind of printed-wiring board (PWB).
Along with the development of technology, printed-wiring board (PWB) has more and more microminiaturized trend, and the electronic devices and components above it are because too small overstocked, makes that to judge that with human eye components and parts unusual (comprising falling material omission, wrong plug, weldering mistake etc.) almost become impossible.Simultaneously, existing electrical detection instrument can't be applicable to surface mount elements.Therefore, check that how fast, easily and accurately components and parts become a problem that presses for solution unusually on these wiring boards.
Purpose of the present invention is exactly to provide electronic devices and components abnormality test method and tester on a kind of printed-wiring board (PWB) in order to overcome the above problems, with fast, check out abnormal occurrencies such as falling to expect omission, wrong plug, weldering mistake on the wiring board easily and accurately.
The present invention realizes that the scheme of above-mentioned purpose is to comprise electronic devices and components abnormality test method and tester on the printed-wiring board (PWB), and the two belongs to same design.
On the described printed-wiring board (PWB) electronic devices and components abnormality test method it is characterized in that may further comprise the steps: it is fixing that printed-wiring board (PWB) is put into the locating rack that has image-pickup device; Obtain the image information of appointed area on the surface that components and parts are arranged on the printed-wiring board (PWB) with image-pickup device; Image information is sent into computing machine; Computing machine is analyzed image, and compares with the normal data stored in the database, to judge on the printed-wiring board (PWB) whether there being unusually electronic devices and components.
It is characterized in that of electronic devices and components abnormality test instrument on the described printed-wiring board (PWB): comprise locating rack, computing machine, the image recording device is installed on the described locating rack, the image recording device links to each other with computing machine by signal wire; Electronic devices and components anomaly analysis program on the wiring board is arranged in computing machine.
Owing to adopted above scheme, with sending in the computing machine after the image absorption of image-pickup device with printed-wiring board (PWB), replace the human eye operation, accurately quick more, analysis to components and parts on the wiring board is undertaken by image, compare with the testing electrical property instrument, do not need contact electrode, thereby applicable surface mount elements is analyzed.
Fig. 1 is a tester general illustration of the present invention.
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.
Electronic devices and components abnormality test method on a kind of printed-wiring board (PWB) is characterized in that may further comprise the steps:
It is fixing that printed-wiring board (PWB) 5 is put into the locating rack 1 that has image-pickup device 2;
Obtain the image information of appointed area on the surface that components and parts are arranged on the printed-wiring board (PWB) 5 with image-pickup device 2;
Image information is sent into computing machine 3;
3 pairs of images of computing machine are analyzed, and compare with the normal data stored in the database, to judge on the printed-wiring board (PWB) 5 whether there being unusually electronic devices and components.
Wherein the method analyzed of 3 pairs of images of computing machine may further comprise the steps: the difference according to each several part color in the image is divided into a plurality of color regions, and electronic devices and components are extracted, and carries out color coding, with the printed circuit board (PCB) filtering background, gives black; Calculate each regional geometric properties (comprising regional barycenter, region shape, symmetry) then; The feature of calculating is compared with the standard value of storage in the computing machine machine 3.If error surpasses setting value, then judge unusual, otherwise assert qualified.
See Fig. 1, shown in be to realize electronic devices and components abnormality test instrument on a kind of printed-wiring board (PWB) of said method, comprise locating rack 1, computing machine 3, on the described locating rack 1 image recording device 2 is installed, image recording device 2 links to each other with computing machine 3 by signal wire; Electronic devices and components anomaly analysis program on the wiring board is arranged in computing machine 3.Described image recording device 2 can be color video camera, scanner etc.Also comprise printer 4 in the instrument, it links to each other with computing machine 3, so that the result is printed.6 is sliding bars among the figure, drive image recording device 2 and slide, and the 7th, head roll, moving printed-wiring board (PWB) 5 motions of driver card troughed belt.
Claims (6)
1, electronic devices and components abnormality test method on a kind of printed-wiring board (PWB) is characterized in that may further comprise the steps:
It is fixing that printed-wiring board (PWB) (5) is put into the locating rack (1) that has image-pickup device (2);
Obtain the image information of appointed area on the surface that components and parts are arranged on the printed-wiring board (PWB) (5) with image-pickup device (2);
Image information is sent into computing machine (3);
Whether computing machine (3) is analyzed image, and compares with the normal data stored in the database, go up electronic devices and components and have unusually to judge printed-wiring board (PWB) (5).
2, electronic devices and components abnormality test method on the printed-wiring board (PWB) as claimed in claim 1 is characterized in that: wherein computing machine (3) method that image is analyzed may further comprise the steps: the difference according to each several part color in the image is divided into a plurality of color regions; Calculate each regional geometric properties; The feature of calculating is compared with the standard value of storage in the computing machine machine (3).
3, electronic devices and components abnormality test method on the printed-wiring board (PWB) as claimed in claim 2, it is characterized in that: described geometric properties comprises regional barycenter, region shape, symmetry.
4, electronic devices and components abnormality test instrument on a kind of printed-wiring board (PWB), it is characterized in that: comprise locating rack (1), computing machine (3), image recording device (2) is installed on the described locating rack (1), and image recording device (2) links to each other with computing machine (3) by signal wire; Electronic devices and components anomaly analysis program on the wiring board is arranged in computing machine (3).
5, electronic devices and components abnormality test instrument on the printed-wiring board (PWB) as claimed in claim 1, it is characterized in that: described image recording device (2) is a gamma camera.
6, electronic devices and components abnormality test instrument on the printed-wiring board (PWB) as claimed in claim 2 is characterized in that: also comprise printer (4), it links to each other with computing machine (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001024914A CN1137387C (en) | 2000-03-14 | 2000-03-14 | Method for testing abnormality of electronic element and device on printed circuit board and its testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001024914A CN1137387C (en) | 2000-03-14 | 2000-03-14 | Method for testing abnormality of electronic element and device on printed circuit board and its testing instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1263270A true CN1263270A (en) | 2000-08-16 |
| CN1137387C CN1137387C (en) | 2004-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001024914A Expired - Fee Related CN1137387C (en) | 2000-03-14 | 2000-03-14 | Method for testing abnormality of electronic element and device on printed circuit board and its testing instrument |
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| CN (1) | CN1137387C (en) |
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| CN1312469C (en) * | 2002-08-22 | 2007-04-25 | 丰田自动车株式会社 | Good-or-not decision device, decision programme, method and multi-variable statistical analyzing device |
| CN100395519C (en) * | 2003-05-21 | 2008-06-18 | 优志旺电机株式会社 | Figure checking device |
| CN101308184B (en) * | 2008-06-13 | 2010-12-08 | 深圳创维－Rgb电子有限公司 | Method and system for analyzing and detecting inserting element using image |
| CN101603815B (en) * | 2008-06-13 | 2012-03-28 | 鸿富锦精密工业（深圳）有限公司 | System and method for checking small line segment figure |
| CN102466645A (en) * | 2010-11-15 | 2012-05-23 | 株式会社高永科技 | Inspection method |
| CN101566460B (en) * | 2008-04-24 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Substrate detection system for double-sided circuit board, detection method and detection carrier therefor |
| CN102967820A (en) * | 2012-11-13 | 2013-03-13 | 东莞宇龙通信科技有限公司 | Mobile terminal and self-detection method thereof |
| CN103018163A (en) * | 2011-09-21 | 2013-04-03 | 技嘉科技股份有限公司 | Fault detection method and fault detection device |
| CN104374420A (en) * | 2013-08-16 | 2015-02-25 | 镒生电线塑料(昆山)有限公司 | Image detection machine capable of preventing parts from being missed and detection method |
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| CN105760424A (en) * | 2016-01-16 | 2016-07-13 | 唐山师范学院 | Database establishment method for storing key data of enterprise products |
| CN107192310A (en) * | 2017-05-15 | 2017-09-22 | 格力电器（武汉）有限公司 | Method for inspecting circuit board welding jig |
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2000
- 2000-03-14 CN CNB001024914A patent/CN1137387C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1312469C (en) * | 2002-08-22 | 2007-04-25 | 丰田自动车株式会社 | Good-or-not decision device, decision programme, method and multi-variable statistical analyzing device |
| CN100395519C (en) * | 2003-05-21 | 2008-06-18 | 优志旺电机株式会社 | Figure checking device |
| CN101566460B (en) * | 2008-04-24 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Substrate detection system for double-sided circuit board, detection method and detection carrier therefor |
| CN101308184B (en) * | 2008-06-13 | 2010-12-08 | 深圳创维－Rgb电子有限公司 | Method and system for analyzing and detecting inserting element using image |
| CN101603815B (en) * | 2008-06-13 | 2012-03-28 | 鸿富锦精密工业（深圳）有限公司 | System and method for checking small line segment figure |
| US8949060B2 (en) | 2010-11-15 | 2015-02-03 | Koh Young Technology Inc. | Inspection method |
| CN102466645B (en) * | 2010-11-15 | 2014-09-10 | 株式会社高永科技 | Inspection method |
| CN102466645A (en) * | 2010-11-15 | 2012-05-23 | 株式会社高永科技 | Inspection method |
| CN103018163A (en) * | 2011-09-21 | 2013-04-03 | 技嘉科技股份有限公司 | Fault detection method and fault detection device |
| CN102967820A (en) * | 2012-11-13 | 2013-03-13 | 东莞宇龙通信科技有限公司 | Mobile terminal and self-detection method thereof |
| CN104374420A (en) * | 2013-08-16 | 2015-02-25 | 镒生电线塑料(昆山)有限公司 | Image detection machine capable of preventing parts from being missed and detection method |
| CN104915635B (en) * | 2014-03-10 | 2019-11-26 | 波音公司 | Check the method and computer system, computer-readable medium of composite article |
| CN104915635A (en) * | 2014-03-10 | 2015-09-16 | 波音公司 | Composite inspection and structural check of multiple layers |
| CN105760424A (en) * | 2016-01-16 | 2016-07-13 | 唐山师范学院 | Database establishment method for storing key data of enterprise products |
| CN107432748B (en) * | 2016-05-27 | 2021-01-01 | 上海西门子医疗器械有限公司 | Flat panel detector testing system and flat panel detector testing method |
| CN107432748A (en) * | 2016-05-27 | 2017-12-05 | 上海西门子医疗器械有限公司 | Flat panel detector test system and flat panel detector method of testing |
| CN108627088A (en) * | 2017-03-24 | 2018-10-09 | 汉达精密电子(昆山)有限公司 | Automatic measuring instrument and its method |
| CN107192310A (en) * | 2017-05-15 | 2017-09-22 | 格力电器（武汉）有限公司 | Method for inspecting circuit board welding jig |
| CN107192310B (en) * | 2017-05-15 | 2020-03-24 | 格力电器（武汉）有限公司 | Method for inspecting circuit board welding jig |
| CN109142903A (en) * | 2017-06-27 | 2019-01-04 | 鸿富锦精密工业(武汉)有限公司 | The test macro and method of electronic equipment |
| CN111000357A (en) * | 2018-10-04 | 2020-04-14 | 卡西欧计算机株式会社 | Nail print apparatus, nail print method, and recording medium |
| CN111983338A (en) * | 2019-05-21 | 2020-11-24 | 仁宝电脑工业股份有限公司 | Test method and test system |
| CN111693778A (en) * | 2020-05-25 | 2020-09-22 | 珠海格力电器股份有限公司 | Patch resistor abnormality detection method, device, system, equipment and storage medium |
| CN111693778B (en) * | 2020-05-25 | 2021-07-20 | 珠海格力电器股份有限公司 | Patch resistor abnormality detection method, device, system, equipment and storage medium |
| CN114625101A (en) * | 2020-12-14 | 2022-06-14 | 丰田自动车株式会社 | Abnormality diagnosis system, abnormality diagnosis method, and program |
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|---|---|
| CN1137387C (en) | 2004-02-04 |
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