CN101640812B - Test system for the video interface - Google Patents
Test system for the video interface Download PDFInfo
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- CN101640812B CN101640812B CN2008101312378A CN200810131237A CN101640812B CN 101640812 B CN101640812 B CN 101640812B CN 2008101312378 A CN2008101312378 A CN 2008101312378A CN 200810131237 A CN200810131237 A CN 200810131237A CN 101640812 B CN101640812 B CN 101640812B
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Abstract
The invention discloses a test system for the video interface, which is used for detecting an output signal of the video interface of a calculator and comprises a host to be tested and a testing tool. The host to be tested comprises a video interface and a displaying program, wherein the displaying program outputs a displaying signal through the video interface. The testing tool is electrically connected to the video interface and comprises a communication interface, a storage unit and a video detecting program, wherein the storage unit is used for storing the video detecting program and the video detecting program is used for receiving and detecting the displaying signal output from the video interface. The detection result is recorded in the testing tool which communicates with the rearend host through a communication interface so as to return the detection result to the rear end host to record and display the detection result to an operator.
Description
Technical field
The present invention relates to a kind of test macro of computer periphery, particularly a kind of test macro of signal of the video interface.
Background technology
Along with the remarkable technological progress of computer installation, the also related feasible connectivity port kind of periphery that shows increases day by day.Kind D-SUB, DVI (the DigitalVisual Interface of now comparatively common on the market demonstration connectivity port, abbreviation DVI), HDMI (High Definition Multimedia Interface is called for short HDMI) connectivity port or S-Video connectivity port.
Built-in video output is all arranged in general mobile computer or the modular calculator.For the test mode of the manufacturer of aforementioned calculation device, it is peripheral still the video output of each calculator device to be connected to corresponding demonstrations.Judge by color output and the special pattern tested on online operating personnel's detection display one by one whether the video of this calculator is normal.
But this method has following several shortcomings: need manual intervention in the test process 1.; 2. need to buy expensive exterior display device; 3. exterior display device need take a large amount of operation positions; 4. all holding wires that can not all contain tested display interface.Therefore improve above-mentioned test mode method is the problem that production line is paid special attention to always.
Summary of the invention
In view of above problem, main purpose of the present invention is to provide a kind of test macro of the video interface, in order to the output signal of the video interface that detects main frame to be measured.
For achieving the above object, the test macro of the disclosed a kind of the video interface of the present invention, it includes: main frame to be measured, testing tool and back-end host.Main frame to be measured includes the video interface and display routine, and display routine sends shows signal by the video interface; Testing tool is electrically connected at the video interface, also includes communication port, video processing unit, storage element and Video Detection program in the testing tool, and storage element is in order to store the Video Detection program; Video processing unit is in order to carry out the Video Detection program, to detect the shows signal of being exported from the video interface; Testing tool utilizes communication port to be electrically connected at back-end host, and testing tool is sent to back-end host with testing result.
The present invention proposes a kind of test macro of the video interface to computer, whether its shows signal in order to the video interface of testing main frame to be measured is correct.Testing tool receives the shows signal of main frame to be measured, and judges whether the pin position of shows signal and the video interface is correct.At last, testing tool sends to testing result in another back-end host by communication port and stores.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is a system architecture schematic diagram of the present invention;
Fig. 2 is the schematic diagram of first test case;
Fig. 3 is the schematic diagram of second test case;
Fig. 4 is the schematic diagram of the 3rd test case;
Fig. 5 is the configuration diagram of another embodiment of the present invention.
Wherein, Reference numeral
110 main frames to be measured
111 the video interfaces
112 display routines
120 testing tools
121 communication ports
122 video processing units
123 storage elements
124 Video Detection programs
125 detecting units
126 video decoders
127 VGA test cells
128 S-Video decoders
130 back-end host
Embodiment
Please refer to shown in Figure 1ly, it is a system architecture schematic diagram of the present invention.Include in the test macro of the video interface: main frame 110 to be measured and testing tool 120.Also include the video interface 111 and display routine 112 in the main frame 110 to be measured.The video interface 111 can be but not be defined as D-SUB connectivity port, DVI (Digital Visual Interface) connectivity port, HDMI (High DefinitionMultimedia Interface) connectivity port or S-Video connectivity port.Display routine 112 sends shows signal to testing tool 120 by the video interface 111.
Also include communication port 121, video processing unit 122, storage element 123, Video Detection program 124 and detecting unit 125 in the testing tool 120.Communication port 121 is arbitrary among general-purpose serial bus (Universal Serial Bus, be called for short USB), RS-232, IEEE 1394 or the RJ-45.Storage element 123 is in order to store Video Detection program 124 and many display data channel message of (DisplayData Channel is called for short DDC).DDC is in order to be based upon the information channel between main frame 110 to be measured and the display, and DDC can directly be defeated by main frame 110 to be measured with the physical data of display, for example the information such as refresh rate under the model of display, sequence number, production firm, the different resolution.
Whether Video Detection program 124 is normal in order to detect down function: test plug function; The DDC signal and the function of test video connectivity port 111; Whether the voltage characteristic of test video connectivity port 111 is correct; Video Detection program 124 sends specific display graphics to each the video interface 111, collects the graphical information that is sent by testing tool 120, gives Video Detection program 124 by communication port 121 passbacks.Video Detection program 124 comparison data, whether the graphical display function of testing each the video interface 111 is correct.Every test item in the Video Detection program 124 is not only to be confined to above-mentioned order, can and then set the relevant detection project order according to the different of test environment yet.
For realizing the testing tool 120 of different types of the video interface 111, so the present invention is illustrated with following various variation examples.
The test case of first kind of signal
For clearly demonstrating the framework of first test case, please refer to shown in Figure 2ly, it is the schematic diagram of first test case.In the testing tool 120 except including communication port 121, video processing unit 122, storage element 123, Video Detection program 124, high frequency range digital content protection (High-Bandwidth DigitalContent Protection; be called for short HDCP) authentication unit and detecting unit 125, also be provided with a video decoder 126 (Video Decode).Video decoder 126 is electrically connected between detecting unit 125 and the video processing unit 122.Video decoder 126 program in order to the shows signal that is received is deciphered.The tested object of present embodiment is the video interface 111 at digital video signal.For instance, the video interface 111 of digital video signal is DVI connectivity port or HDMI connectivity port.The HDCP authentication unit is electrically connected in the video decoder 126.
If the shows signal by the DVI connectivity port is received then directly is sent to the processing that video decoder 126 is deciphered.If when receiving the vision signal from the HDMI connectivity port, then vision signal is handled according to following manner.Because the main purpose of HDCP is to prevent that unencrypted high definition video content is sent out.So the HDCP authentication unit is decrypted or verifies in order to the content to the shows signal that received.When detecting unit 125 detected the shows signal that is received and is the signal of HDMI, detecting unit 125 can send shows signal according to following transmission sequence: with shows signal by the video interface 111 inputs; Shows signal is transferred to the HDCP authentication unit; Via the HDCP authentication unit shows signal is decrypted and verifies; Shows signal after will deciphering again is sent to and deciphers processing in the video decoder; At last, the shows signal after the decoding is sent to video processing unit 122 and carries out the test of Video Detection program 124.
The test case of second kind of signal
For first test case, second test case is in order to the vision signal of treatment of simulated.For clearly demonstrating the framework of second embodiment, please refer to shown in Figure 3ly, it is the schematic diagram of second test case.Also include communication port 121, VGA test cell 127, video processing unit 122, storage element 123, Video Detection program 124 and detecting unit 125 in the testing tool 120 of second test case.Wherein, the connection of each assembly and start relation please refer to mentioned above, so no longer add to give unnecessary details.The places different with first test case exist, VGA test cell 127.VGA test cell 127 is electrically connected between detecting unit 125 and the video processing unit 122.VGA test cell 127 is in order to handle the digital signal of P5V and hot plug (hot plug) HP.
The test case of the third signal
Except above-mentioned two types vision signal, the present invention also provides the third test case in order to support the detection system of S-Video connectivity port.For clearly demonstrating the framework of the 3rd test case, please refer to shown in Figure 4ly, it is the schematic diagram of the 3rd test case.Also include communication port 121, S-Video decoder 128, video processing unit 122, storage element 123, Video Detection program 124 and detecting unit 125 in the testing tool 120 of the 3rd test case.Different with previous embodiment is that S-Video decoder 128 is electrically connected between detecting unit 125 and the video processing unit 122.S-Video decoder 128 has the vision signal of S-Video in order to parsing, and the video signal transmission after will resolving detects to video processing unit 122.
Except aforesaid way, the present invention also proposes another embodiment.Another embodiment of the present invention includes: main frame 110 to be measured, testing tool 120 and back-end host 130.Please refer to shown in Figure 5ly, it is the configuration diagram of another embodiment of the present invention.Main frame 110 to be measured is all similar to the embodiment of earlier figures 1 to the function of testing tool 120, so do not add to give unnecessary details at this.Different with last embodiment is, testing tool 120 utilizes communication port 121 to be electrically connected at back-end host 130, and testing tool 120 is sent to back-end host 130 with testing result.Back-end host 130 can be the calculator device that is different from main frame 110 to be measured, also can be by main frame to be measured 110 itself.Testing tool 120 in order to testing result is back to back-end host 130, gives operating personnel for record or with the testing result demonstration also by communication port 121 and back-end host 130 communications.
The present invention proposes a kind of test macro of the video interface 111 to main frame 110 to be measured, whether its shows signal in order to the video interface 111 of testing main frame 110 to be measured is correct.Testing tool 120 receives the shows signal of main frame 110 to be measured, and judges whether the pin position of shows signal and the video interface is correct.At last, testing tool 120 sends to testing result in another back-end host 130 by communication port 121 and stores.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (7)
1. the test macro of a video interface, the output signal in order to the video interface that detects main frame to be measured is characterized in that, includes in this test macro:
One main frame to be measured, it includes a video interface and a display routine, and this display routine sends a shows signal by this video interface; And
One testing tool, be electrically connected at this video interface, also include a communication port in this testing tool, one video processing unit, one storage element, one Video Detection program, one video decoder and a VGA test cell, this storage element is in order to store this Video Detection program, this video processing unit according to this received shows signal in order to carry out this Video Detection program, in order to this shows signal is detected, this video decoder is electrically connected at this video processing unit, the program of this video decoder in order to this shows signal that is received is deciphered, this VGA test cell is electrically connected between this video interface and this video processing unit, and this VGA test cell is in order to handle the digital signal of P5V and hot plug HP.
2. the test macro of the video interface according to claim 1 is characterized in that, this video interface is D-SUB connectivity port, DVI connectivity port, HDMI connectivity port or S-Video connectivity port.
3. the test macro of the video interface according to claim 1 is characterized in that, also includes the message of many display data channel DDC in this storage element.
4. the test macro of the video interface according to claim 1 is characterized in that, this communication port is general-purpose serial bus BUS, IEEE 1394 or RJ-45.
5. the test macro of the video interface according to claim 1, it is characterized in that, also comprise a detecting unit in this testing tool, this detecting unit is electrically connected at this video interface and this video processing unit, this detecting unit is in order to detecting the kind that current this video interface connects, and carries out corresponding this Video Detection program according to current this video interface that connects.
6. the test macro of the video interface according to claim 1 is characterized in that, also comprises a high frequency range digital content protection HDCP authentication unit in this testing tool, and it is decrypted or verifies in order to the content to this shows signal of being received.
7. the test macro of the video interface according to claim 1 is characterized in that, also comprises a back-end host, and it is in order to receiving the testing result from this testing tool, and testing result is recorded in this back-end host.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101312378A CN101640812B (en) | 2008-08-01 | 2008-08-01 | Test system for the video interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008101312378A CN101640812B (en) | 2008-08-01 | 2008-08-01 | Test system for the video interface |
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| CN101640812A CN101640812A (en) | 2010-02-03 |
| CN101640812B true CN101640812B (en) | 2011-06-15 |
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| CN2008101312378A Expired - Fee Related CN101640812B (en) | 2008-08-01 | 2008-08-01 | Test system for the video interface |
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Families Citing this family (18)
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| TWI405079B (en) | 2009-08-11 | 2013-08-11 | Wistron Corp | Output test method, system and platform for electrical device |
| CN101996613B (en) * | 2009-08-20 | 2013-07-31 | 纬创资通股份有限公司 | Output testing method, system and platform of electronic device |
| CN102685542B (en) * | 2011-03-09 | 2015-06-24 | 鸿富锦精密工业（深圳）有限公司 | High definition multimedia interface testing system and method |
| CN102427551B (en) * | 2011-09-19 | 2014-11-12 | 工业和信息化部电子第五研究所 | Digital high definition source terminal port transmission quality test system |
| CN103209337B (en) * | 2013-03-18 | 2015-09-23 | 福州瑞芯微电子有限公司 | HDMI transmit control device method of testing and equipment |
| CN104185015A (en) * | 2013-05-20 | 2014-12-03 | 立讯精密工业股份有限公司 | Testing device for digital video signal conversion products |
| CN104461797B (en) * | 2013-09-18 | 2017-07-21 | 达丰(上海)电脑有限公司 | Test the system and method for notebook computer external display interface |
| CN103686030A (en) * | 2013-12-23 | 2014-03-26 | 广东威创视讯科技股份有限公司 | Method and device for detecting video signal interface applied to picture splicing display unit |
| CN105100793A (en) * | 2014-05-05 | 2015-11-25 | 深圳Tcl新技术有限公司 | Television and television signal interface detection method |
| CN104219519A (en) * | 2014-09-16 | 2014-12-17 | 硅谷数模半导体（北京）有限公司 | Testing adapter plate, system and method of audio and video interface |
| CN104795014B (en) * | 2015-04-17 | 2017-11-10 | 广东威创视讯科技股份有限公司 | The abnormality eliminating method and system of multiple signals combination windowing |
| CN106303508A (en) * | 2015-06-12 | 2017-01-04 | 神讯电脑(昆山)有限公司 | Video signal interface test system and method |
| US9565427B1 (en) * | 2016-02-15 | 2017-02-07 | Steren Electronics International, Llc | High definition multimedia interface test system |
| CN108121623A (en) * | 2016-11-28 | 2018-06-05 | 英业达科技有限公司 | The test system and method for audio-visual connectivity port |
| CN106713904A (en) * | 2016-12-20 | 2017-05-24 | 郑州云海信息技术有限公司 | VGA interface test method, apparatus and system |
| CN106597170B (en) * | 2016-12-26 | 2019-10-15 | Tcl王牌电器(惠州)有限公司 | The test method and device of ARC function |
| CN109342855A (en) * | 2018-11-28 | 2019-02-15 | 福建捷联电子有限公司 | A kind of bad automatic testing method of VGA signal wire of test |
| CN112291557A (en) * | 2020-09-17 | 2021-01-29 | 苏州华兴源创科技股份有限公司 | Image signal generator output interface detection device and system |
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| US5991805A (en) * | 1996-07-16 | 1999-11-23 | Krukovsky; Yuri | Portable universal video/audio computer tester |
| CN1303499C (en) * | 2002-09-19 | 2007-03-07 | 三星电子株式会社 | Display device for checking inputting signal |
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| CN101640812A (en) | 2010-02-03 |
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