CN102256158B - Automatic television circuit board function testing method and system - Google Patents
Automatic television circuit board function testing method and system Download PDFInfo
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- CN102256158B CN102256158B CN 201110215509 CN201110215509A CN102256158B CN 102256158 B CN102256158 B CN 102256158B CN 201110215509 CN201110215509 CN 201110215509 CN 201110215509 A CN201110215509 A CN 201110215509A CN 102256158 B CN102256158 B CN 102256158B
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Abstract
The invention discloses an automatic television circuit board function testing method and an automatic television circuit board function testing system. The system consists of a test board for arranging a television circuit board to be tested, a signal conversion and controller module, a control computer and a signal generator which are sequentially connected, wherein the output end of the signal generator is connected with the input end of the test board. In the method and the system, test data is transmitted to a computer for comparison test in a network transmission way by adopting a conventional television scheme with network and high-definition multimedia interface (HDMI) functions in combination with a signal conversion and control system consisting of a micro control unit (MCU) to cancel an image acquisition card and save test cost. The scheme provided by the invention supports multi-path HDMI input and further supports the simultaneous test of a plurality of platforms without additional system platforms, so system test difficulties and system cost are reduced.
Description
Technical field
The present invention relates to the tv test field, relate in particular to a kind of automatic test approach and system of television circuit plate function.
Background technology
Scale development along with LCD TV, divide the work more and more thinner, a large amount of drive scheme Chevron Research Company (CRC)s appears on the market, power supply Chevron Research Company (CRC) etc., and it is very complicated for the test of drive scheme integrated circuit board in batches, because the function of input port is very many, for example: AV, SVIDEO, YPbPr, HDMI, DVD, USB, ATV, DTV, DVI etc., also has corresponding audio input interface, mainly rely on manual testing's method at present, and complicated operation, test leakage appears easily, there is very large influence in problems such as mistake survey to the product turnout quality, and the developing direction of automation must replace existing manual mode of operation.
Number of patent application is that 201010275525.8 scheme has been told about the method for testing by capture card, this method mainly adopts the mode that the LVDS signal is gathered, the technology of capture card is mainly grasped abroad, with NI(American National instrument company) be the main flow representative, cost is very high, and need full-time LabVIEW(pattern development environment) engineer, because adopt the PCI-E data-interface, when needing same test station to test a plurality of platform simultaneously, each platform all needs a capture card, requirement to PC is just very high, and the drive plate of a kind of new departure of every replacing, just need be to the driving debugging of making amendment, maintenance cost is very high and the cycle is long, is unfavorable for the thread-changing configuration of factory.And the highest support of existing scheme is to the display resolution of 1920*1080/60Hz, and for novel 120Hz display screen, the drive plate of 3D screen can't be finished test.
Summary of the invention
The object of the invention provides a kind of automatic test approach and system of television circuit plate function, test macro and the network transmission manner integrated by function are given to computer to the test data transmission, save the use image pick-up card, reduce system testing difficulty and maintenance cost.
The invention provides a kind of automatic test approach of television circuit plate function, comprise step:
A, the testboard that will be placed with tested television circuit plate, signal conversion and controller module, control computer, signal generator connect successively, and the signal generator output connects the testboard input;
B, enter first test channel by described control computer to control command and the control that the conversion of described signal and controller module send tested television circuit plate start, transmit control command by described signal conversion and controller module again and give testboard, make tested television circuit plate enter set test channel; Described control computer sends corresponding image control command to signal generator simultaneously, and signal generator produces corresponding image measurement signal and gives tested television circuit plate;
C, tested television circuit plate convert the image measurement signal decoding to and drive the corresponding LVDS signal of screen work, and this LVDS signal sent to signal conversion and controller module is handled, convert the LVDS signal to HDMI or DVI signal, the voltage test points output voltage that synchronous signal conversion and controller module detect tested television circuit plate and sends to the control computer to the detection data of each voltage test points whether in the scope that sets;
D, the conversion of described signal and control module convert picture signal to described HDMI or DVI signal decoding again, and picture signal is converted to network signal send and to be given to the control computer, simultaneously the audio signal of tested television circuit plate output is switched and transmitted to the control computer, the control computer receives after described signal is changed and control module sends over voltage detecting data, picture signal, the audio signal voltage range data, picture signal, audio signal with former setting and compares and draw test result.
Further, also comprise step:
E, a lane testing of tested television circuit plate finished after, repeating step A-D enters next passage and tests, and after all lane testings are finished, and test is finished test result is deposited in database.
The present invention also provides a kind of Auto-Test System of television circuit plate function, comprise that testboard, signal conversion and controller module, control computer, signal generator connect successively, the signal generator output connects the testboard input, is placed with tested television circuit plate on the described testboard;
Described control computer is used for arranging the index project that needs test and the operation control command of test channel, transmits order and data and gives described signal generator, and the control command of transmit operation simultaneously changes and controller module for described signal; The control computer also is used for receiving after voltage detecting data that signal conversion and control module send over, picture signal, the audio signal voltage range data, picture signal, audio signal with former setting and compares and draw test result;
Signal generator is used for receiving control command, produces corresponding image measurement signal and gives tested television circuit plate;
Tested television circuit plate is used for the image measurement signal decoding is converted to the corresponding LVDS signal of driving screen work, and this LVDS signal is sent to signal conversion and controller module;
Signal conversion and control module are used for converting the LVDS signal to HDMI or DVI signal, whether the voltage test points output voltage that also detects tested television circuit plate and sends to the control computer to the detection data of each voltage test points and compares in the scope that sets;
Described signal conversion and control module are connected with the control computer by the network data line, described HDMI or DVI signal decoded again convert picture signal to, and picture signal is converted to network signal send and to be given to the control computer, the audio signal that tested television circuit plate is exported is switched and is transmitted to the control computer simultaneously.
Further, the control computer also is connected with database hub, stores the test result of each tested television circuit plate.
Further, after testing the index project of setting, described control computer can be automatically generates a complete test report to the test result of record according to set form, and compares with the index performance of standard, and incongruent project is made the sign differentiation automatically.
Automatic test approach and the system of television circuit plate function of the present invention, TV integrated circuit board by existing band network transmission and HDMI interface function, in conjunction with function integrated novel signal conversion and control module, utilize the network transmission manner that the test data transmission is given to computer and compare test, save the use image pick-up card, saved testing cost.
Described signal conversion and control module integrated level height, powerful, store the driver of the TV integrated circuit board of whole models, can be converted to DVI signal or HDMI signal to the LVDS signal of TV liquid crystal drive plate, and then DVI signal or HDMI signal are passed to decode on the common LCD TV drive plate of band network function and go back original image, by network image is transferred to computer then and carries out the test result that image comparison obtains image section, the present invention program supports multichannel HDMI input, can support a plurality of platforms to test simultaneously, other system platform be need not increase, system testing difficulty and system cost reduced.
Whole test process only need be carried out the selection of some test events in early stage, and the back system can automatically the operation control command of storing be sent, and finishes whole testing process automatically, provides examining report.
Description of drawings
Fig. 1 is the automatic test approach schematic flow sheet of the television circuit plate function that provides of the embodiment of the invention one.
Fig. 2 is the Auto-Test System block diagram of the television circuit plate function that provides of the embodiment of the invention two.
Fig. 3 is the structural representation of signal conversion and control module in the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the automatic test approach of a kind of television circuit plate function that the embodiment of the invention one provides comprises step:
101, testboard, signal conversion and controller module, control computer, the signal generator that will be placed with tested television circuit plate connects successively, and the signal generator output connects the testboard input;
102, enter first test channel by described control computer to control command and the control that the conversion of described signal and controller module send tested television circuit plate start, transmit control command by described signal conversion and controller module again and give testboard, make tested television circuit plate enter set test channel; Described control computer sends corresponding image control command to signal generator simultaneously, and signal generator produces corresponding image measurement signal and gives tested television circuit plate;
103, tested television circuit plate converts the image measurement signal decoding to and drives the corresponding LVDS signal of screen work, and this LVDS signal sent to signal conversion and controller module is handled, convert the LVDS signal to HDMI or DVI signal, the voltage test points output voltage that synchronous signal conversion and controller module detect tested television circuit plate and sends to the control computer to the detection data of each voltage test points whether in the scope that sets;
104, described signal conversion and control module convert picture signal to described HDMI or DVI signal decoding again, and picture signal is converted to network signal send and to be given to the control computer, simultaneously the audio signal of tested television circuit plate output is switched and transmitted to the control computer, the control computer receives after described signal is changed and control module sends over voltage detecting data, picture signal, the audio signal voltage range data, picture signal, audio signal with former setting and compares and draw test result;
105, a lane testing of tested television circuit plate is finished after, repeating step A-D enters next passage and tests, and up to all lane testings are finished, after test is finished test result is deposited in database.After testing the test event of setting, described control computer can generate the test result of record the test report of a complete television reception performance index automatically according to set form, and compare with the index performance of standard, incongruent project is made sign automatically distinguish.
Specific operation process is as follows:
1, after each modular unit of system interconnects, TV integrated circuit board to be measured is put into testboard, the testing software of operation control computer, the control computer sends control command to signal conversion and controller module, automatically TV integrated circuit board to be measured is fixed by signal conversion and controller module control testboard, turned on the power supply of TV integrated circuit board to be measured and carry out start.
2, enter first test channel by the control computer to signal conversion and controller module transmission order, the control awaiting board card enters set passage, control computer simultaneously and send corresponding image control to signal generator, signal generator sends corresponding signal and is given to tested integrated circuit board.
3, TV integrated circuit board to be measured converts the image decoding to and drives the corresponding LVDS signal of screen, and this LVDS signal sent the graphic decoder part that is given in signal conversion and the controller module, the LVDS signal is converted to HDMI or self-defining DVI signal, the voltage test points output voltage that synchronous signal conversion and controller module detect tested integrated circuit board and sends to the control computer to the detection data of each voltage test points whether in the scope that sets
4, after signal conversion and controller module convert the LVDS signal to HDMI signal or self-defining DVI signal, HDMI signal or self-defining DVI signal are decoded into picture signal again, and image signal data is converted to network signal send and to be given to computer, simultaneously the audio signal of tested integrated circuit board output is switched (being chosen to one the tunnel such as the multichannel input exports) and be given to computer.
5, the control computer receives behind the voltage detecting data that send over, picture signal, the voice signal voltage range data, picture signal, voice signal with former setting and compares and draw test result, entering next passage in the same way after a lane testing of tested TV integrated circuit board finished tests, up to all lane testings are finished, test deposits test result in database after finishing, so that information centre's query statistic condition of production at any time.
As shown in Figure 2, the Auto-Test System of a kind of television circuit plate function that the embodiment of the invention two provides, comprise that testboard, signal conversion and controller module, control computer, signal generator connect successively, the signal generator output connects the testboard input, be placed with tested television circuit plate on the described testboard, the control computer also is connected with database hub, stores the test result of each tested television circuit plate.
Described control computer is used for arranging the index project that needs test and the operation control command of test channel, transmits order and data and gives described signal generator, and the control command of transmit operation simultaneously changes and controller module for described signal; The control computer also is used for receiving after voltage detecting data that signal conversion and control module send over, picture signal, the audio signal voltage range data, picture signal, audio signal with former setting and compares and draw test result;
Signal generator is used for receiving control command, produces corresponding image measurement signal and gives tested TV plate;
Tested television circuit plate is used for the image measurement signal decoding is converted to the corresponding LVDS signal of driving screen work, and this LVDS signal is sent to signal conversion and controller module;
Signal conversion and control module are used for converting the LVDS signal to HDMI or DVI signal, whether the voltage test points output voltage that also detects tested television circuit plate and sends to the control computer to the detection data of each voltage test points and compares in the scope that sets.
Described signal conversion and control module are connected with the control computer by the network data line, described HDMI or DVI signal decoded again convert picture signal to, and picture signal is converted to network signal send and to be given to the control computer, the audio signal that tested television circuit plate is exported is switched and is transmitted to the control computer simultaneously.
After testing the index project of setting, described control computer can generate the test result of record the test report of a complete television reception performance index automatically according to set form, and compare with the index performance of standard, incongruent project is made sign automatically distinguish.
As shown in Figure 3, described signal conversion and control module are by external communication interface, controller, the graphic decoder module, the network switch module is formed, main being responsible for is converted to DVI signal or HDMI signal to the LVDS signal of liquid crystal drive plate, and then the HDMI signal is passed on the common LCD TV drive plate of band network function and decode and go back original image, be transferred to the control computer by network data bundle of lines image then and carry out the test result that image comparison obtains image section, the present invention program supports multichannel HDMI input, just can support a plurality of platforms to test simultaneously, other system platform be need not increase, system testing difficulty and system cost reduced.
Whole test process of the present invention only need be carried out the selection of some test events in early stage, and the back system can automatically the operation control command of storing be sent, and finishes whole testing process automatically, provides examining report.
The present invention is by the TV scheme of existing band network and HDMI function, change and control system in conjunction with the signal that control MCU forms, utilize the network transmission manner that the test data transmission is given to computer and compare test, save the use image pick-up card, saved testing cost.And compatible high, need not to arrange multiple decoder driver, simple to operate, test is accurately.
The above is preferred implementation of the present invention; certainly can not limit the present invention's interest field with this; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvement and change, these improvement and change also are considered as protection scope of the present invention.
Claims (5)
1. the automatic test approach of a television circuit plate function is characterized in that, comprises step:
A, the testboard that will be placed with tested television circuit plate, signal conversion and controller module, control computer, signal generator connect successively, and the signal generator output connects the testboard input;
B, enter first test channel by described control computer to control command and the control that the conversion of described signal and controller module send tested television circuit plate start, transmit control command by described signal conversion and controller module again and give testboard, make tested television circuit plate enter set test channel; Described control computer sends corresponding image control command to signal generator simultaneously, and signal generator produces corresponding image measurement signal and gives tested television circuit plate;
C, tested television circuit plate convert the image measurement signal decoding to and drive the corresponding LVDS signal of screen work, and this LVDS signal sent to signal conversion and controller module is handled, convert the LVDS signal to HDMI or DVI signal, the voltage test points output voltage that synchronous signal conversion and controller module detect tested television circuit plate and sends to the control computer to the detection data of each voltage test points whether in the scope that sets;
D, the conversion of described signal and control module convert picture signal to described HDMI or DVI signal decoding again, and picture signal is converted to network signal send and to be given to the control computer, simultaneously the audio signal of tested television circuit plate output is switched and transmitted to the control computer, the control computer receives after described signal is changed and control module sends over voltage detecting data, picture signal, the audio signal voltage range data, picture signal, audio signal with former setting and compares and draw test result.
2. according to the automatic test approach of the described television circuit plate of claim 1 function, it is characterized in that, also comprise step:
E, a lane testing of tested television circuit plate finished after, repeating step A-D enters next passage and tests, and after all lane testings are finished, and test is finished test result is deposited in database.
3. the Auto-Test System of a television circuit plate function, it is characterized in that, comprise that testboard, signal conversion and controller module, control computer, signal generator connect successively, the signal generator output connects the testboard input, is placed with tested television circuit plate on the described testboard;
Described control computer is used for arranging the index project that needs test and the operation control command of test channel, transmits order and data and gives described signal generator, and the control command of transmit operation simultaneously changes and controller module for described signal; The control computer also is used for receiving after voltage detecting data that signal conversion and control module send over, picture signal, the audio signal voltage range data, picture signal, audio signal with former setting and compares and draw test result;
Signal generator is used for receiving control command, produces corresponding image measurement signal and gives tested television circuit plate;
Tested television circuit plate is used for the image measurement signal decoding is converted to the corresponding LVDS signal of driving screen work, and this LVDS signal is sent to signal conversion and controller module;
Signal conversion and control module are used for converting the LVDS signal to HDMI or DVI signal, whether the voltage test points output voltage that also detects tested television circuit plate and sends to the control computer to the detection data of each voltage test points and compares in the scope that sets;
Described signal conversion and control module are connected with the control computer by the network data line, described HDMI or DVI signal decoded again convert picture signal to, and picture signal is converted to network signal send and to be given to the control computer, the audio signal that tested television circuit plate is exported is switched and is transmitted to the control computer simultaneously.
4. according to the Auto-Test System of the described television circuit plate of claim 3 function, it is characterized in that,
The control computer also is connected with database hub, stores the test result of each tested television circuit plate.
5. according to the Auto-Test System of the described television circuit plate of claim 3 function, it is characterized in that, after testing the index project of setting, described control computer can generate a complete test report to the test result of record according to set form automatically, and compare with the index performance of standard, incongruent project is made sign automatically distinguish.
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| CN 201110215509 CN102256158B (en) | 2011-07-29 | 2011-07-29 | Automatic television circuit board function testing method and system |
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| CN 201110215509 CN102256158B (en) | 2011-07-29 | 2011-07-29 | Automatic television circuit board function testing method and system |
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| CN102572510A (en) * | 2011-12-26 | 2012-07-11 | 四川长虹电器股份有限公司 | Automatic test device of digital television mainboard |
| CN102625136B (en) * | 2012-03-07 | 2014-05-07 | 深圳市九洲电器有限公司 | STB (Set Top Box) quality control system and control method for STB quality control system |
| CN104079922A (en) * | 2013-03-26 | 2014-10-01 | 佛山市顺德区顺达电脑厂有限公司 | Video signal testing device |
| CN103618897B (en) * | 2013-10-31 | 2015-07-15 | 四川长虹电器股份有限公司 | A testing device of a machine core main board of a TV integrated machine |
| CN103873857B (en) * | 2014-03-13 | 2015-07-15 | 深圳市九洲电器有限公司 | Test equipment and test method for audio and video output interface |
| CN103929676B (en) * | 2014-04-30 | 2017-07-28 | 广州视源电子科技股份有限公司 | The method and intelligent television board of a kind of remote-controlled test intelligent television board function |
| CN104168477A (en) * | 2014-09-02 | 2014-11-26 | 深圳市兆驰股份有限公司 | Automatic TV decoding deck test system and method |
| TWI551114B (en) * | 2014-09-30 | 2016-09-21 | 和碩聯合科技股份有限公司 | Multimedia interface detecting system and detecting method |
| CN104469353B (en) * | 2014-12-11 | 2016-09-21 | 武汉精测电子技术股份有限公司 | A kind of device detecting LVDS video signal quality |
| CN105161039A (en) * | 2015-09-29 | 2015-12-16 | 南京熊猫电子制造有限公司 | Labview-based multi-type signal online testing system |
| CN105491375B (en) * | 2015-12-28 | 2018-02-16 | 歌尔股份有限公司 | The test system and method and television set of a kind of product circuit plate |
| CN105676109B (en) * | 2016-01-08 | 2019-08-02 | 青岛海信电器股份有限公司 | A kind of motherboard test method and equipment |
| CN108053784B (en) * | 2017-12-21 | 2020-11-24 | 苏州华兴源创科技股份有限公司 | System and method for testing high-speed image signal source |
| 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 |
| CN111083398A (en) * | 2019-12-25 | 2020-04-28 | 深圳Tcl新技术有限公司 | Automatic testing method and system for television, storage medium and electronic equipment |
| CN114325321B (en) * | 2021-12-28 | 2023-03-24 | 保定飞凌嵌入式技术有限公司 | Embedded board card set testing tool and method based on power integration |
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