CN103873857B - Test equipment and test method for audio and video output interface - Google Patents
Test equipment and test method for audio and video output interface Download PDFInfo
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Abstract
The invention discloses test equipment and a test method for an audio and video output interface. The test equipment comprises an audio and video input interface, a receiving module, a solving module and a test module which are connected in sequence, wherein the audio and video input interface is connected with the to-be-tested audio and video output interface of to-be-tested equipment. The test equipment and the test method have the beneficial effects that high expandability and high automatic degree are realized; a test process can be finished rapidly and accurately without manual intervention; analog audio and video interfaces as well as digital and encrypted audio and video interfaces can be tested; test results can be displayed intuitively and conveniently.
Description
Technical field
The present invention relates to field tests, more particularly, relate to a kind of testing equipment and method of testing of audio and video output interface.
Background technology
Audio frequency and video output is a most basic function of Set Top Box.For ensureing Set Top Box outgoing, must test the audio and video output interface of Set Top Box in Set Top Box production process, bad to avoid causing Set Top Box to be dispatched from the factory due to audio and video output interface hardware fault.
On the other hand, what require audio & video equipment output quality along with the raising of living standards of the people and people improves constantly, and the audio & video equipment in family will get more and more.In order to Set Top Box can be allowed better can to mate audio & video equipment in family, the audio and video output interface of Set Top Box also can get more and more.Conventional audio and video output interface comprises: HDMI, CVBS, Ypbpr, Scart, S/PDIF etc., along with being on the increase of these interfaces, when producing, tests these audio and video output interface by more and more difficult.
At present, the method for testing of general Set Top Box audio and video output interface comprises:
First, audio & video equipment is accessed Set Top Box audio and video output interface.Then, play specific audio-video document by Set Top Box, tester by ear and naked eyes judge the sound that Set Top Box exports and video whether qualified, if qualified, Set Top Box is sent into next station, otherwise Set Top Box is sent into maintenance station maintenance.
There is following shortcoming in above-mentioned method of testing: carry out manual testing by tester, automaticity is low, and production efficiency is low; And the possibility of erroneous judgement is high, affects the quality of production of Set Top Box.
Summary of the invention
The technical problem to be solved in the present invention is, the automaticity for the above-mentioned method of testing of prior art is low, production efficiency low, and the defect that the possibility of erroneous judgement is high, a kind of testing equipment and method of testing of audio and video output interface are provided.
The technical solution adopted for the present invention to solve the technical problems is: the testing equipment constructing a kind of audio and video output interface, comprising: the audio frequency and video input interface, receiver module, parsing module and the test module that connect successively;
Wherein, audio frequency and video input interface is connected with the audio and video output interface to be tested of equipment to be tested;
Receiver module is used for receiving test file by audio frequency and video input interface from audio and video output interface to be tested;
Parsing module for resolving the test file of reception, to obtain sound data and/or to look metadata; Described sound data comprises tone beginning label and tone end mark; Describedly comprise depending on first beginning label and look first end mark depending on metadata;
If test module is used for tone beginning label being detected, then start test tone metadata one by one, until tone end mark detected, to obtain audio-frequency test result; Look first beginning label if detect, then start to test one by one to look metadata, until detect and look first end mark, to obtain video measurement result.
In one embodiment, test module is used for the sound data of the sound data detected and test passes to compare, and obtains audio-frequency test result according to comparative result.
In one embodiment, test module comprises setting unit and comparison judgment unit;
Wherein, setting unit for setting the permissible error value E of certain moment sound data value, test gathers total time T, allows sound data value to exceed the times N of error range in T time;
The sound data value that comparison judgment unit is used for each moment in T time to detect compares with the sound data value of test passes respectively, and judge whether comparative result exceeds the permissible error value E of certain moment sound data value, and comparative result exceeds the frequency n of the permissible error value E of certain moment sound data value in statistics T time, if n>N, then audio-frequency test result is that audio and video output interface to be tested is defective; Otherwise audio-frequency test result is that audio and video output interface to be tested is qualified.
In one embodiment, test module is used for the comparing depending on metadata depending on metadata and test passes that will detect, and according to comparative result acquisition video measurement result.
In one embodiment, test module comprises setting unit and comparison judgment unit;
Wherein, for setting, single pixel three primary colors permissible error value is E to setting unit, the defective pixel sum P allowed in a certain frame of video, the defective frame of video sum F allowed in testing time T and tristimulus value R, G, B of looking metadata pixel of setting test passes in certain frame of video;
Comparison judgment unit is used for single in each frame of video detected in T time pixel tristimulus value r, g and b to compare with tristimulus value R, G, the B depending on metadata pixel of test passes in certain frame of video respectively, obtain deviate e=|r-R|+|g-G|+|b-B|, and be that E compares by deviate e and single pixel three primary colors permissible error value, if e>E, then judge that this pixel is defective;
The defective pixel sum P allowed in p and a certain frame of video also for adding up in each frame of video the total p comprising defective pixel, and compares by comparison judgment unit, if p>P, then judges that this frame of video is defective;
Comparison judgment unit is also for adding up in T time the quantity f defective frame of video being detected, and f and the defective frame of video sum F allowed in testing time T are compared, if f>F, then video measurement result is that audio and video output interface to be tested is defective.
In one embodiment, described testing equipment also comprises: memory module and statistical analysis module;
Memory module to be used for the audio-frequency test result of audio and video output interface to be tested and/or video measurement result with equipment Serial Number to be tested for index stores;
Statistical analysis module, for the audio-frequency test result in statistical data analysis storehouse and/or video measurement result, obtains the disqualification rate of dissimilar audio and video output interface.
In one embodiment, described testing equipment also comprises: presetting module and display module;
Presetting module is used for pre-setting test option;
Display module is used for the audio-frequency test result of audio and video output interface to be tested and/or video measurement result to show.
A method of testing for audio and video output interface, said method comprising the steps of:
S1, receive test file from audio and video output interface to be tested and resolve, obtain sound data and/or look metadata; Described sound data comprises tone beginning label and tone end mark; Describedly comprise depending on first beginning label and look first end mark depending on metadata;
If S2 detects tone beginning label, then start test tone metadata one by one, until tone end mark detected, to obtain audio-frequency test result; Look first beginning label if detect, then start to test one by one to look metadata, until detect and look first end mark, to obtain video measurement result.
In one embodiment, described method is further comprising the steps of:
S3, obtain the sequence number of equipment to be tested;
S4, after the audio and video output interface to be tested of equipment to be tested has been tested, audio-frequency test result and/or video measurement result are carried out showing and audio-frequency test result and/or video measurement result has been saved in in the equipment Serial Number to be tested database that is index.
In one embodiment, described method is further comprising the steps of:
Audio-frequency test result in S5, statistical data analysis storehouse and/or video measurement result, obtain the disqualification rate of dissimilar audio and video output interface.
Implement testing equipment and the method for testing of audio and video output interface of the present invention, there is following beneficial effect: extensibility is high; Automaticity is high; Test process do not need manual intervention and test process quick and precisely; Both can test simulation audio-video interface, also can test numeral and encryption audio-video interface; Can the showing test results of intuitive and convenient; Even if there is erroneous judgement in the test result of read test equipment, also when equipment to be tested dispatches from the factory, defective equipment to be tested can be detected, avoid defective products to come into the market.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the flow chart of the method for testing of the audio and video output interface of the embodiment of the present invention;
Fig. 2 is the structured flowchart of the testing equipment of the audio and video output interface of the embodiment of the present invention.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
It is the flow chart of the method for testing of the audio and video output interface of the embodiment of the present invention see Fig. 1.Comprise the following steps:
S1, receive test file from audio and video output interface to be tested and resolve, obtain sound data and/or look metadata.
Audio and video output interface to be tested is the audio and video output interface of equipment to be tested.Need to treat testing equipment when testing, equipment to be tested plays (such as, loop play) test file.Thus, test file can be received from the audio and video output interface to be tested of equipment to be tested.
In an embodiment of the present invention, resolve and resolve to electric wave signal data (i.e. sound data) by the audio signal in test file, the vision signal in test file is resolved to pixel number according to (namely looking metadata).
In an embodiment of the present invention, if test file is audio file, then it comprises audio frequency beginning label and audio frequency end mark.Thus, resolve the sound data obtained and comprise tone beginning label and tone end mark.
If test file is video file, then it comprises video beginning label and video end mark.Thus, comprising depending on first beginning label depending on metadata and looking first end mark of obtaining is resolved.
If test file is audio-video document, then it had both comprised audio frequency beginning label and audio frequency end mark, comprised again video beginning label and video end mark.Thus, resolve the sound data that obtains and both comprised audio frequency beginning label and audio frequency end mark depending on metadata, comprising again video beginning label and video end mark.
In an embodiment of the present invention, test file can be conventional audio frequency and video test case, as high bass test case, left and right acoustic channels test case, video height test pixel use-case, video height chromatism test use-case etc.
If S2 detects tone beginning label, then start test tone metadata one by one, until tone end mark detected, to obtain audio-frequency test result; Look first beginning label if detect, then start to test one by one to look metadata, until detect and look first end mark, to obtain video measurement result.
In step S2, if tone beginning label do not detected in the given time or look first beginning label, then think that this audio and video output interface to be tested is defective.
Concrete, in step S2, test tone metadata comprises the following steps one by one:
The sound data of the sound data detected and test passes is compared, and specification error scope; If exceed this error range, then this audio and video output interface to be tested is defective, otherwise qualified.
Preferably, if setting: the sound data value in certain moment is X, the permissible error value of certain moment sound data value is E, test collection total time is T, the interior times N allowing sound data value to exceed error range of T time.The sound data value in each moment detected in T time is compared with the sound data value of test passes respectively, if comparative result exceeds the frequency n of the permissible error value E of certain moment sound data value, if then n>N, audio-frequency test result is that audio and video output interface to be tested is defective; Otherwise audio-frequency test result is that audio and video output interface to be tested is qualified.
In step S2, test comprises the following steps depending on metadata one by one:
By the comparing depending on metadata depending on metadata and test passes detected, and specification error scope; If exceed this error range, then this audio and video output interface to be tested is defective, otherwise qualified.
Preferably, set: whole test gathers the quantity of the frame of video exported in total time T; In certain frame of video, certain reference value depending on the tristimulus value of metadata pixel (i.e. the tristimulus value looking metadata pixel of test passes) is R, G, B; The test value of the actual tristimulus value depending on metadata pixel is r, g, b; Single pixel three primary colors permissible error value is E; The deviate of testing single pixel three primary colors in certain frame of video is e, then e=|r-R|+|g-G|+|b-B|.If then actual measurement deviate e is greater than permissible error value E, then think that this pixel is defective.The defective pixel allowed in setting frame of video adds up to P, comprises defective pixel (e>E) and adds up to p, if p>P, then think that this frame of video is defective in a certain frame of video of actual test.In testing time T, the defective frame of video of permission adds up to F, and actual test failure frame of video (p>P) quantity is f, if f>F, then thinks that audio and video output interface to be tested is defective.
The method of testing of the audio and video output interface of the embodiment of the present invention also comprises:
Before step S2, carry out test option and arrange.Test option mainly comprises: the Devices to test audio and video output interface, audio frequency and video test permissible error value etc. of needs test.
The method of testing of the audio and video output interface of the embodiment of the present invention also comprises:
S3, obtain the sequence number of equipment to be tested.
Concrete, in an embodiment of the present invention, each equipment to be tested has a unique sequence number.The mode obtaining equipment Serial Number to be tested can comprise: scan, inputted by tester.
S4, after the audio and video output interface to be tested of equipment to be tested has been tested, audio-frequency test result and/or video measurement result are carried out showing and audio-frequency test result and/or video measurement result has been saved in in the equipment Serial Number to be tested database that is index.
Thus, can the audio-frequency test result according to display of intuitive and convenient and/or video measurement result, determine this equipment to be tested to send into next station, still this equipment to be tested is sent into maintenance station maintenance.
Before equipment to be tested dispatches from the factory, whether the audio and video output interface retrieving this equipment to be tested in the database can set up in step S4 according to equipment Serial Number to be tested all tests successfully (namely audio-frequency test result and/or video measurement result are qualified), if all test successfully, then allow to dispatch from the factory, otherwise do not allow to dispatch from the factory.Thus, even if there is erroneous judgement in the test result of read test equipment, also when equipment to be tested dispatches from the factory, defective equipment to be tested can be detected, avoid defective products to come into the market.
Audio-frequency test result in S5, statistical data analysis storehouse and/or video measurement result, obtain the disqualification rate of dissimilar audio and video output interface.
Thus, according to the underproof reason of comprehensive maintenance interpretation of result of defective audio and video output interface, effectively can find out the failure cause of equipment to be tested, improve the quality of production of equipment to be tested.
The method of testing of the audio and video output interface of the embodiment of the present invention, can the test audio and video output interface to be tested of automation, and the production control quality of system.
It is the structured flowchart of the testing equipment of the audio and video output interface of the embodiment of the present invention see Fig. 2.
This testing equipment 1 comprises: audio frequency and video input interface 11, receiver module 12, parsing module 13, test module 14.The audio and video output interface to be tested 21 of equipment 2 to be tested is connected with audio frequency and video input interface 11.In an embodiment of the present invention, equipment 2 to be tested can be any equipment that Set Top Box etc. has audio and video output interface testing requirement.
The receiver module 12 of the various audio and video output interface of the integrated adaptation of testing equipment 1 of the embodiment of the present invention and parsing module 13.Such as, testing equipment 1 accessible site adapts with audio and video output interface such as HDMI, CVBS, Ypbpr, Scart, S/PDIF or the receiver module 12 that mates and parsing module 13.Thus, the testing equipment of the embodiment of the present invention can adapt to multiple audio and video output interface, make testing equipment 1 extensibility of the embodiment of the present invention strong, also can normally test even if the audio and video output interface of equipment to be tested changes, and the testing equipment 1 of this interface of support that need not more renew.Audio frequency and video input interface 11 is connected with audio and video output interface 21.During test, equipment 2 to be tested plays test file, and audio and video output interface 21 i.e. output sound vision signal.
Receiver module 12 is for receiving test file by audio frequency and video input interface 11 from audio and video output interface 21 to be tested.
Parsing module 13 is for resolving the test file of reception.In an embodiment of the present invention, resolve and resolve to electric wave signal data (i.e. sound data) by the audio signal in test file, the vision signal in test file is resolved to pixel number according to (namely looking metadata).
In an embodiment of the present invention, if test file is audio file, then it comprises audio frequency beginning label and audio frequency end mark.Thus, resolve the sound data obtained and comprise tone beginning label and tone end mark.
If test file is video file, then it comprises video beginning label and video end mark.Thus, comprising depending on first beginning label depending on metadata and looking first end mark of obtaining is resolved.
If test file is audio-video document, then it had both comprised audio frequency beginning label and audio frequency end mark, comprised again video beginning label and video end mark.Thus, resolve the sound data that obtains and both comprised audio frequency beginning label and audio frequency end mark depending on metadata, comprising again video beginning label and video end mark.
If test module 14 is for tone beginning label being detected, then start test tone metadata one by one, until tone end mark detected, to obtain audio-frequency test result; Look first beginning label if detect, then start to test one by one to look metadata, until detect and look end mark, to obtain video measurement result.Test module 14 comprises setting unit and comparison judgment unit.
Concrete, one by one during test tone metadata, test module 14 for being compared by the sound data of the sound data detected and test passes, and obtains audio-frequency test result according to comparative result.
Preferably, the setting unit of test module 14 for setting the permissible error value E of certain moment sound data value, test gathers total time T, allows sound data value to exceed the times N of error range in T time.The sound data value that the comparison judgment unit of test module 14 is used for each moment in T time to detect compares with the sound data value of test passes respectively, and judge whether comparative result exceeds the permissible error value E of certain moment sound data value, and comparative result exceeds the frequency n of the permissible error value E of certain moment sound data value in statistics T time, if n>N, then audio-frequency test result is that audio and video output interface to be tested is defective; Otherwise audio-frequency test result is that audio and video output interface to be tested is qualified.
Should be understood that comparative result exceeds certain moment sound data value and refers to that the absolute value of the difference of the sound data value of the sound data value that certain moment detects and this moment test passes is greater than E.
Test is when looking metadata one by one, depending on metadata the comparing depending on metadata and test passes of test module 14 for detecting, and according to comparative result acquisition video measurement result.
Preferably, single pixel three primary colors permissible error value is E for setting for the setting unit of test module 14, allow in a certain frame of video defective pixel sum P, the defective frame of video sum F allowed in testing time T and tristimulus value R, G, B of looking metadata pixel of setting test passes in certain frame of video.Comparison judgment unit is used for single in each frame of video detected in T time pixel tristimulus value r, g and b to compare with tristimulus value R, G, the B depending on metadata pixel of test passes in certain frame of video respectively, obtain deviate e=|r-R|+|g-G|+|b-B|, and be that E compares by deviate e and single pixel three primary colors permissible error value, if e>E, then judge that this pixel is defective; The defective pixel sum P allowed in p and a certain frame of video also for adding up in each frame of video the total p comprising defective pixel, and compares by comparison judgment unit, if p>P, then judges that this frame of video is defective; Comparison judgment unit is also for adding up in T time the quantity f defective frame of video being detected, and f and the defective frame of video sum F allowed in testing time T are compared, if f>F, then video measurement result is that audio and video output interface to be tested is defective.
Should be understood that in an embodiment of the present invention, test module 14 test tone metadata and be not limited to the above depending on the method for metadata one by one, test module 14 also can adopt other method of testing, obtains audio-frequency test result and video measurement result.Such as, the sound data value that reality test obtains being plotted as curve 1, the sound data value of test passes is plotted as curve 2, by curve 1 and curve 2 being compared, obtaining the modes such as audio-frequency test result.
In addition, the testing equipment of the audio and video output interface of the embodiment of the present invention also comprises: presetting module 15, display module 16, memory module 17, statistical analysis module 18.
Presetting module 15 is for pre-setting test option.Test option comprises: the Devices to test audio and video output interface, audio frequency and video test permissible error value etc. of needs test.
Display module 16 is for showing the audio-frequency test result of audio and video output interface to be tested and/or video measurement result.Thus, can intuitive and convenient according to audio-frequency test result and/or video measurement result, determine this equipment to be tested to send into next station, maybe this equipment to be tested sent into maintenance station maintenance.
Memory module 17 for by the audio-frequency test result of audio and video output interface to be tested and/or video measurement result with equipment Serial Number to be tested for index stores.Concrete, can by audio-frequency test result and/or video measurement result with equipment Serial Number to be tested for index stores with the form of database.Thus, before equipment to be tested dispatches from the factory, retrieve in a database according to equipment Serial Number to be tested, can determine whether the audio and video output interface of this equipment to be tested all tests successfully, if all test successfully, then allow to dispatch from the factory, otherwise do not allow to dispatch from the factory.In an embodiment of the present invention, each equipment to be tested has a unique sequence number.The mode of equipment Serial Number to be tested is by scanning, being obtained by modes such as tester input.
Statistical analysis module 18, for the audio-frequency test result in statistical data analysis storehouse and/or video measurement result, obtains the disqualification rate of dissimilar audio and video output interface.
The testing equipment of the audio and video output interface of the embodiment of the present invention, extensibility is high, audio and video output interface has been newly increased if need testing equipment, do not need the testing equipment of this interface of procurement support again, only need receiver module and the parsing module of this interface integrated in testing equipment, once drop into lifelong being benefited.
The testing equipment of the audio and video output interface of the embodiment of the present invention, automaticity is high, and tester only needs the audio and video output interface to be tested of equipment to be tested to access this testing equipment, and plays specific test file on equipment to be tested.Controlled the outgoing of equipment to be tested by the test macro of testing equipment, instead of judge that whether this equipment to be tested is qualified by the sense organ of tester; Test process do not need manual intervention and test process quick and precisely, and can the showing test results of intuitive and convenient.By final tone and look metadata and judge that whether audio and video output interface is qualified, instead of pass through the method for the photoelectric characteristic directly gathering audio and video output interface, so both can test simulation audio-video interface, also can test numeral and encryption audio-video interface (as HDMI).
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (3)
1. the testing equipment of an audio and video output interface, it is characterized in that, comprising: the audio frequency and video input interface (11) connected successively, receiver module (12), parsing module (13), test module (14), memory module (17) and statistical analysis module (18);
Wherein, audio frequency and video input interface (11) is connected with the audio and video output interface to be tested (21) of equipment to be tested (2);
Receiver module (12) is for receiving test file by audio frequency and video input interface (11) from audio and video output interface to be tested (21);
Parsing module (13) for resolving the test file of reception, to obtain sound data and/or to look metadata; Described sound data comprises tone beginning label and tone end mark; Describedly comprise depending on first beginning label and look first end mark depending on metadata, wherein, sound data is electric wave signal data, is pixel number certificate depending on metadata;
Test module (14) if for tone beginning label being detected, then starts test tone metadata one by one, until tone end mark detected, to obtain audio-frequency test result; Look first beginning label if detect, then start to test one by one to look metadata, until detect and look first end mark, to obtain video measurement result, wherein, test module (14) comprises setting unit and comparison judgment unit;
Obtaining audio-frequency test result is: compared by the sound data of the sound data detected and test passes, and obtain audio-frequency test result according to comparative result; Wherein, setting unit for setting the permissible error value E of certain moment sound data value, test gathers total time T, allows sound data value to exceed the times N of error range in T time; The sound data value that comparison judgment unit is used for each moment in T time to detect compares with the sound data value of test passes respectively, and judge whether comparative result exceeds the permissible error value E of certain moment sound data value, and comparative result exceeds the frequency n of the permissible error value E of certain moment sound data value in statistics T time, if n>N, then audio-frequency test result is that audio and video output interface to be tested is defective; Otherwise audio-frequency test result is that audio and video output interface to be tested is qualified;
Obtaining video measurement result is: compared by the sound data of the sound data detected and test passes, and obtain audio-frequency test result according to comparative result; Wherein, for setting, single pixel three primary colors permissible error value is E to setting unit, the defective pixel sum P allowed in a certain frame of video, the defective frame of video sum F allowed in testing time T and tristimulus value R, G, B of looking metadata pixel of setting test passes in certain frame of video; Comparison judgment unit is used for single in each frame of video detected in T time pixel tristimulus value r, g and b to compare with tristimulus value R, G, the B depending on metadata pixel of test passes in certain frame of video respectively, obtain deviate e=|r-R|+|g-G|+|b-B|, and be that E compares by deviate e and single pixel three primary colors permissible error value, if e>E, then judge that this pixel is defective; The defective pixel sum P allowed in p and a certain frame of video also for adding up in each frame of video the total p comprising defective pixel, and compares by comparison judgment unit, if p>P, then judges that this frame of video is defective; Comparison judgment unit is also for adding up in T time the quantity f defective frame of video being detected, and f and the defective frame of video sum F allowed in testing time T are compared, if f>F, then video measurement result is that audio and video output interface to be tested is defective;
Memory module (17) for by the audio-frequency test result of audio and video output interface to be tested and/or video measurement result with equipment Serial Number to be tested for index stores;
Statistical analysis module (18), for the audio-frequency test result in statistical data analysis storehouse and/or video measurement result, obtains the disqualification rate of dissimilar audio and video output interface.
2. the testing equipment of audio and video output interface according to claim 1, is characterized in that, described testing equipment also comprises: presetting module (15) and display module (16);
Presetting module (15) is for pre-setting test option;
Display module (16) is for showing the audio-frequency test result of audio and video output interface to be tested and/or video measurement result.
3. a method of testing for audio and video output interface, is characterized in that, said method comprising the steps of:
S1, receive test file from audio and video output interface to be tested and resolve, obtain sound data and/or look metadata; Described sound data comprises tone beginning label and tone end mark; Describedly comprise depending on first beginning label and look first end mark depending on metadata;
If S2 detects tone beginning label, then start test tone metadata one by one, until tone end mark detected, to obtain audio-frequency test result; Look first beginning label if detect, then start to test one by one to look metadata, until detect and look first end mark, to obtain video measurement result;
Wherein, obtaining audio-frequency test result is: compared by the sound data of the sound data detected and test passes, and obtain audio-frequency test result according to comparative result, comprise following sub-step:
S211: set in the permissible error value E of certain moment sound data value, test collection total time T, T time and allow sound data value to exceed the times N of error range;
S212: the sound data value detected in each moment in T time compares with the sound data value of test passes respectively, and judge whether comparative result exceeds the permissible error value E of certain moment sound data value;
S213: in statistics T time, comparative result exceeds the frequency n of the permissible error value E of certain moment sound data value, if n>N, then audio-frequency test result is that audio and video output interface to be tested is defective; Otherwise audio-frequency test result is that audio and video output interface to be tested is qualified;
Wherein, obtaining video measurement result is: compared by the sound data of the sound data detected and test passes, and obtain audio-frequency test result according to comparative result, comprise following sub-step:
S221: the defective pixel sum P, the defective frame of video sum F allowed in testing time T that set that single pixel three primary colors permissible error value is E, allow in a certain frame of video and tristimulus value R, G, B of looking metadata pixel of setting test passes in certain frame of video;
S222: single in each frame of video detected in T time pixel tristimulus value r, g and b are compared with tristimulus value R, G, the B depending on metadata pixel of test passes in certain frame of video respectively, obtain deviate e=|r-R|+|g-G|+|b-B|, and be that E compares by deviate e and single pixel three primary colors permissible error value, if e>E, then judge that this pixel is defective;
S223: add up in each frame of video the total p comprising defective pixel, and the defective pixel sum P allowed in p and a certain frame of video is compared, if p>P, then judge that this frame of video is defective;
S224: the quantity f defective frame of video being detected in statistics T time, and f and the defective frame of video sum F allowed in testing time T are compared, if f>F, then video measurement result is that audio and video output interface to be tested is defective;
S3, obtain the sequence number of equipment to be tested;
S4, after the audio and video output interface to be tested of equipment to be tested has been tested, audio-frequency test result and/or video measurement result are carried out showing and audio-frequency test result and/or video measurement result has been saved in in the equipment Serial Number to be tested database that is index;
Audio-frequency test result in S5, statistical data analysis storehouse and/or video measurement result, obtain the disqualification rate of dissimilar audio and video output interface.
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| CN105704481B (en) * | 2014-11-27 | 2018-04-10 | 深圳Tcl新技术有限公司 | The method and system of video interface Air conduct measurement |
| 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 |
| CN107948904B (en) * | 2017-12-26 | 2020-10-02 | 深圳Tcl新技术有限公司 | Sound box aging test method and device and computer readable storage medium |
| CN110446103B (en) * | 2018-05-04 | 2021-08-31 | 腾讯科技（深圳）有限公司 | Audio and video testing method and device and storage medium |
| CN111326182B (en) * | 2018-12-14 | 2021-06-18 | 比亚迪股份有限公司 | Aging test method and device for vehicle-mounted multimedia equipment |
| CN110278433A (en) * | 2019-08-07 | 2019-09-24 | 四川长虹电器股份有限公司 | A kind of audio-video interface test method |
| CN111526356A (en) * | 2020-03-24 | 2020-08-11 | 福建星网视易信息系统有限公司 | Automatic testing method and device for multi-channel video interface |
| CN112769645B (en) * | 2020-12-29 | 2024-03-19 | 视联动力信息技术股份有限公司 | Terminal testing method and device, terminal equipment and storage medium |
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| CN101500175B (en) * | 2008-01-31 | 2011-01-26 | 联想(北京)有限公司 | Test method and apparatus for digital display interface |
| CN101720097B (en) * | 2008-10-09 | 2012-06-13 | 中兴通讯股份有限公司 | Method and system for automatically debugging audio frequency of mobile terminal |
| CN101521834B (en) * | 2009-04-02 | 2012-07-04 | 深圳市茁壮网络股份有限公司 | Automatic testing method, device and system |
| CN201518504U (en) * | 2009-10-22 | 2010-06-30 | 福建新大陆通信科技有限公司 | Digital audio frequency test device of digital television set-top box |
| CN102256158B (en) * | 2011-07-29 | 2013-08-14 | 广州视源电子科技股份有限公司 | Automatic testing method and system for television circuit board function |
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