CN105282545A - FPGA automatic test system and test method for liquid crystal television board - Google Patents
FPGA automatic test system and test method for liquid crystal television board Download PDFInfo
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- CN105282545A CN105282545A CN201510827189.6A CN201510827189A CN105282545A CN 105282545 A CN105282545 A CN 105282545A CN 201510827189 A CN201510827189 A CN 201510827189A CN 105282545 A CN105282545 A CN 105282545A
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Abstract
The invention relates to the technical field of television board testing and discloses an FPGA automatic test system for a liquid crystal television board. The test system comprises a master control unit, an FPGA test unit, a board test tool, and a test signal source. The master control unit is electrically connected to the FPGA test unit through serial ports. The board test tool is electrically connected to the FPGA test unit. The board test tool is used for the installment of a board to be tested. The test signal source is connected to jacks of the board to be tested. The master control unit receives signals from the board to be tested and performs testing. The invention also discloses a test method of the test system. The test method and the test system depend on FPGA array comparison technology, various signal transmission control technologies and electrical automation technology to test television boards. The problems of low production efficiency and difficult quality control in the prior art in which the testing of liquid crystal television boards is totally dependent on human participation are solved.
Description
Technical field
The present invention relates to television board technical field of measurement and test, particularly a kind of FPGA Auto-Test System of LCD TV board and method of testing.
Background technology
In recent years, industrial automation extends to each production field, and comprehensively going deep into along with made in China 2025, intelligent, Machine automated road is just progressively moved towards in National Industrial manufacture, this not only can improve production field efficiency widely, the more important thing is and people can be made to free from loaded down with trivial details work state, make the standardized rate of product higher, product quality is more reliable.
The function of LCD TV from strength to strength in recent years, particularly digital signal is universal, the interface of television set board gets more and more, this brings very large pressure to the inspection work of board factory, manpower is relied on completely, not only make cost of labor very large, also cause certain risk to product quality.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, there is provided a kind of FPGA Auto-Test System and method of testing of LCD TV board, the test relying on FPGA array comparison techniques to add various Signal transmissions control technology and Electric automation technology to come television board.
The technical scheme that the present invention takes is:
A kind of FPGA Auto-Test System of LCD TV board, it is characterized in that, comprise main control unit, FPGA detecting unit, board test fixture, testing source, described main control unit is electrically connected at described FPGA detecting unit by serial ports, described board test fixture is electrically connected at described FPGA detecting unit, described board test fixture is for installing awaiting board card, described testing source is connected to the socket of described awaiting board card, and the signal that described main control unit receives described awaiting board card is tested.
Further, described test macro also comprises supplementary control unit, and described FPGA detecting unit is two, and a FPGA detecting unit connects described main control unit, and a FPGA unit connects described supplementary control unit.
Further, described FPGA detecting unit connects a SD draw-in groove, for installing SD card storage standards audio frequency and video array; Described main control unit connects a USB flash disk draw-in groove, preserves check data for installing USB flash disk.
Further, between described main control unit with board test fixture, be connected an analog quantity modular converter, for checking the various analog outputs of awaiting board card.
Further, described FPGA detecting unit is electrically connected at a monitor, described monitor is also connected to described main control unit, described main control unit is electrically connected at bar code scan equipment by a serial ports, for the identification code of read test board, described main control unit is arranged infrared ray transceiving module, for detecting the infrared receiver function of test board.
Apply a method of testing for the FPGA Auto-Test System of above-mentioned LCD TV board, it is characterized in that, comprise the steps:
(1) be placed on test fixture by manipulator by awaiting board card, described main control unit judges that described awaiting board card is placed correctly, inserts in awaiting board card socket by electric device by the combined plug of testing source;
(2) bar code on described main control unit scanning board is to after board identification, launch infrared remote-controlled signal, switch test board channel successively, the LVDS signal after each channel-decoded of described awaiting board card and audio signal are exported to described FPGA detecting unit by test board.
(3) described FPGA detecting unit converts the audio-video signal of the output of the test fixture board received to array signal, and read the standard signal array stored in SD card, they are compared, calculate error amount according to comparative result, and judge that whether test board is qualified according to the error range preset in advance.
Further, in described (3) step, test result is sent to main control unit and shows on a display screen by described FPGA, and after test data is formed classification according to board numbering, data and result is stored in USB flash disk.
Further, in described awaiting board card, comprise serial ports, carry out communication by the serial ports of rs 232 serial interface signal generator and board, check that whether serial ports is normal.
Further, described awaiting board card comprises signal output port, and described signal output port outputs signal to described supplementary control unit, and described supplementary control unit demodulates LVDS and audio signal, and the array stored by FPGA2 and the SD card of another interlocking is compared.
Further, whether described (3) step comprises and to be qualifiedly placed on different streamlines by manipulator according to the board after detecting.
The invention has the beneficial effects as follows:
Rely on FPGA array comparison techniques to add various Signal transmissions control technology and Electric automation technology to complete the detection of television board, solve and previously rely on the participation of people to complete the problem that generation efficiency is low, quality control difficulty is larger of LCD TV board inspection completely.
Accompanying drawing explanation
Accompanying drawing 1 is the modularize structure icon of test macro of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the FPGA Auto-Test System of LCD TV board of the present invention and the embodiment of method of testing are elaborated.
See accompanying drawing 1, the FPGA Auto-Test System of LCD TV board comprises main control unit, FPGA detecting unit, board test fixture, testing source, main control unit is electrically connected at FPGA detecting unit by serial ports, controls audit program, and checks result.Board test fixture is electrically connected at FPGA detecting unit, and board test fixture is for installing awaiting board card, and testing source is connected to the socket of awaiting board card, and the signal that main control unit receives awaiting board card is tested.
Test macro also comprises supplementary control unit, and FPGA detecting unit is two, and a FPGA detecting unit connects main control unit, and a FPGA unit connects supplementary control unit.FPGA detecting unit connects a SD draw-in groove, for installing SD card storage standards audio frequency and video array; Main control unit connects a USB flash disk draw-in groove, preserves check data, in order to inquiry for installing USB flash disk.An analog quantity modular converter is connected, for checking the various analog outputs of awaiting board card between main control unit with board test fixture.
Main control unit connects a display, for showing assay.FPGA detecting unit is electrically connected at a monitor, monitor is also connected to main control unit, and main control unit is electrically connected at bar code scan equipment by a serial ports, for the identification code of read test board, to generate the list of test board and result, review.Main control unit is arranged infrared ray transceiving module, for detect test board infrared receiver function, and by remote control or come Control card detect starting point.
Apply above-mentioned test macro to comprise the steps: the method that television set board is tested
(1) awaiting board card is placed on test fixture by manipulator, system judge to place correct after, electric device by testing source combined plug, in disposable insertion awaiting board card socket.
(2) bar code on main control unit scanning board, to after board identification, launches infrared remote-controlled signal, successively switch test board channel, and the LVDS signal after each channel-decoded and audio signal are exported to FPGA detecting unit by test board.
(3) FPGA detecting unit converts the audio-video signal that the test fixture board received exports to array signal, and read the standard signal array stored in SD card, they are compared, calculate error amount according to comparative result, and judge that whether test board is qualified according to the error range preset in advance.
(4) test result is sent to main control unit and shows on a display screen by FPGA, after test data being formed classification according to board numbering, data and result is stored in USB flash disk simultaneously.
(5) if comprise serial ports in awaiting board card, then rs 232 serial interface signal generator and board serial ports carry out communication, check that whether serial ports is normal.
(6) if board comprises signal output port, then output signal by supplementary control unit, demodulate LVDS and audio signal, the array stored by FPG and the SD card of another interlocking is compared.
(7) step of all signals controls with the program synchronously all pre-set by main control unit.
(8) whether the board after detecting qualifiedly is placed on different streamlines by manipulator according to it.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. the FPGA Auto-Test System of a LCD TV board, it is characterized in that: comprise main control unit, FPGA detecting unit, board test fixture, testing source, described main control unit is electrically connected at described FPGA detecting unit by serial ports, described board test fixture is electrically connected at described FPGA detecting unit, described board test fixture is for installing awaiting board card, described testing source is connected to the socket of described awaiting board card, and the signal that described main control unit receives described awaiting board card is tested.
2. the FPGA Auto-Test System of LCD TV board according to claim 1, it is characterized in that: described test macro also comprises supplementary control unit, described FPGA detecting unit is two, and a FPGA detecting unit connects described main control unit, and a FPGA unit connects described supplementary control unit.
3. the FPGA Auto-Test System of LCD TV board according to claim 1, is characterized in that: described FPGA detecting unit connects a SD draw-in groove, for installing SD card storage standards audio frequency and video array; Described main control unit connects a USB flash disk draw-in groove, preserves check data for installing USB flash disk.
4. the FPGA Auto-Test System of LCD TV board according to any one of claim 1 to 3, it is characterized in that: between described main control unit with board test fixture, be connected an analog quantity modular converter, for checking the various analog outputs of awaiting board card.
5. the FPGA Auto-Test System of LCD TV board according to claim 1, it is characterized in that: described FPGA detecting unit is electrically connected at a monitor, described monitor is also connected to described main control unit, described main control unit is electrically connected at bar code scan equipment by a serial ports, for the identification code of read test board, described main control unit is arranged infrared ray transceiving module, for detecting the infrared receiver function of test board.
6. a method of testing for the FPGA Auto-Test System of the LCD TV board of application according to any one of claim 1 to 5, is characterized in that: comprise the steps:
(1) be placed on test fixture by manipulator by awaiting board card, described main control unit judges that described awaiting board card is placed correctly, inserts in awaiting board card socket by electric device by the combined plug of testing source;
(2) bar code on described main control unit scanning board is to after board identification, launch infrared remote-controlled signal, switch test board channel successively, the LVDS signal after each channel-decoded of described awaiting board card and audio signal are exported to described FPGA detecting unit by test board;
(3) described FPGA detecting unit converts the audio-video signal of the output of the test fixture board received to array signal, and read the standard signal array stored in SD card, they are compared, calculate error amount according to comparative result, and judge that whether test board is qualified according to the error range preset in advance.
7. method of testing according to claim 6, it is characterized in that: in described (3) step, test result is sent to main control unit and shows on a display screen by described FPGA, and after test data is formed classification according to board numbering, data and result is stored in USB flash disk.
8. the method for testing according to claim 6 or 7, is characterized in that: comprise serial ports in described awaiting board card, carries out communication by the serial ports of rs 232 serial interface signal generator and board, checks that whether serial ports is normal.
9. the method for testing according to claim 6 or 7, it is characterized in that: described awaiting board card comprises signal output port, described signal output port outputs signal to described supplementary control unit, described supplementary control unit demodulates LVDS and audio signal, and the array stored by FPGA2 and the SD card of another interlocking is compared.
10. the method for testing according to claim 6 or 7, is characterized in that: whether described (3) step comprises and to be qualifiedly placed on different streamlines by manipulator according to the board after detecting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510827189.6A CN105282545A (en) | 2015-11-25 | 2015-11-25 | FPGA automatic test system and test method for liquid crystal television board |
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| CN201510827189.6A CN105282545A (en) | 2015-11-25 | 2015-11-25 | FPGA automatic test system and test method for liquid crystal television board |
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Cited By (7)
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| CN107942546A (en) * | 2017-11-13 | 2018-04-20 | 深圳同兴达科技股份有限公司 | Liquid crystal cell tests system and test method |
| CN108718408A (en) * | 2018-05-21 | 2018-10-30 | 深圳市金锐显数码科技有限公司 | A kind of detection method and system for audio/video decoding board |
| CN108833907A (en) * | 2018-06-28 | 2018-11-16 | Oppo（重庆）智能科技有限公司 | Dual camera test device and test method |
| CN112119417A (en) * | 2018-03-23 | 2020-12-22 | 西门子股份公司 | Computer-implemented method for providing data, in particular for consistency tracking |
| CN112685239A (en) * | 2020-12-22 | 2021-04-20 | 北京航天时代激光导航技术有限责任公司 | Automatic test system and method for multi-core DSP + FPGA framework processing circuit |
| CN113064059A (en) * | 2021-05-10 | 2021-07-02 | 北京全路通信信号研究设计院集团有限公司 | Single board automatic test system and method |
| CN114325316A (en) * | 2021-12-24 | 2022-04-12 | 北京锐安科技有限公司 | Board card testing method and device, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107942546A (en) * | 2017-11-13 | 2018-04-20 | 深圳同兴达科技股份有限公司 | Liquid crystal cell tests system and test method |
| CN112119417A (en) * | 2018-03-23 | 2020-12-22 | 西门子股份公司 | Computer-implemented method for providing data, in particular for consistency tracking |
| CN108718408A (en) * | 2018-05-21 | 2018-10-30 | 深圳市金锐显数码科技有限公司 | A kind of detection method and system for audio/video decoding board |
| CN108833907A (en) * | 2018-06-28 | 2018-11-16 | Oppo（重庆）智能科技有限公司 | Dual camera test device and test method |
| CN112685239A (en) * | 2020-12-22 | 2021-04-20 | 北京航天时代激光导航技术有限责任公司 | Automatic test system and method for multi-core DSP + FPGA framework processing circuit |
| CN113064059A (en) * | 2021-05-10 | 2021-07-02 | 北京全路通信信号研究设计院集团有限公司 | Single board automatic test system and method |
| CN113064059B (en) * | 2021-05-10 | 2021-08-10 | 北京全路通信信号研究设计院集团有限公司 | Single board automatic test system and method |
| CN114325316A (en) * | 2021-12-24 | 2022-04-12 | 北京锐安科技有限公司 | Board card testing method and device, electronic equipment and storage medium |
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