CN102244806A - Method and system for automatically testing reception performance parameters of digital television - Google Patents
Method and system for automatically testing reception performance parameters of digital television Download PDFInfo
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- CN102244806A CN102244806A CN2011101753137A CN201110175313A CN102244806A CN 102244806 A CN102244806 A CN 102244806A CN 2011101753137 A CN2011101753137 A CN 2011101753137A CN 201110175313 A CN201110175313 A CN 201110175313A CN 102244806 A CN102244806 A CN 102244806A
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- 238000012360 testing method Methods 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title abstract description 10
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000013459 approach Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 3
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Abstract
The invention discloses a method for automatically testing reception performance parameters of a digital television, comprising the following steps of: A, connecting an input end of a television reception terminal to be tested to a digital television signal generator, and connecting an output end to an image grabbing card; B, setting index items to be tested and controlling operation control instruction of the television reception terminal, transmitting data to the digital television signal generator, and simultaneously, sending the operation control instruction to the television reception terminal to perform the corresponding frequency point set; C, obtaining image data output by the television reception terminal, comparing with a standard image in a database, and recording upper limit and lower limit performance indexes of set data of the digital television signal generator; and D, printing a test report, comparing with standard index performances, and automatically performing identification distinguishing of unmatched items. The method disclosed by the invention can be used for testing various types of reception performance parameters of the digital television rapidly and automatically and has high accuracy and rapid test speed.
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 Digital Television receptivity parameter.
Background technology
The test of the receptivity index of at present existing Digital Television is very loaded down with trivial details; whether general method of testing mosaic occurs on the sign read test for the subjective image of judging; lower limit; with DVB-T is example; test parameter at same frequency just is included in different protection intervals (1/4; 1/8; 1/16; 1/32); interior error correction code rate (1/2; 2/3; 3/4; 5/6; 7/8); bandwidth (6M; 7M; 8M); modulation system (QPSK; 16QAM; the test of the performance index under hundreds of combination condition 64QAM); each channel all needs the above test of carrying out of repetition; time that it need spend and human cost are very high, and are very easy to occur test leakage and mistake survey.
Because the decoder driver of each tame TV manufacturer television set is different, when the error rate parameter of dut terminal by the serial ports feedback decoder compares judgement to testing equipment, different decoders need be done a large amount of bottom software exploitations targetedly could support this function, and present stage decoder software belong to the core, itself is very complicated and grasp at Yuan Chang, and this method of testing is unfavorable for the quick switching between the different schemes.
Summary of the invention
The object of the invention provides the automatic test approach and the system of the high Digital Television receptivity parameter of a kind of intellectuality, realizes the fast automatic test to the multiple parameter of digital television reception performance, the accuracy height, and test speed is fast.
The invention provides a kind of automatic test approach of Digital Television receptivity parameter, comprise step:
A, the input of tested television receive terminal is connected output and IMAQ card connection with the digital television signal generator;
B, index project that needs test and the operation control command of controlling described television receive terminal are set by controlling computer, transmit data and give described digital television signal generator, the control command of transmit operation simultaneously carries out the frequency points corresponding setting for described television receive terminal;
C, described controlling computer are obtained the view data of described television receive terminal output by image pick-up card, and with database in standard picture compare, when meeting test request, described controlling computer can send according to current test event and progressively reduce the order of test image signal quality to described digital television signal generator, and continue the monitoring view data up to standard picture when inconsistent, record described digital television signal generator this moment data lower limit performance index are set;
Described controlling computer sends and progressively improves the order of test image signal quality to described digital television signal generator, and continue the monitoring view data when just exceeding the index of range of receiving, record described digital television signal generator this moment data upper limit performance index are set; Test the receptivity index test that can enter next channel after all combined test projects of a channel automatically, so repeat up to the receptivity index that tests all channels automatically.
Further, also comprise step:
D, test the index project of setting after, described controlling 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.
Further, among the step B, the operation control command can obtain by remotely controlled, and is transmitted to described television receive terminal and controls; The operation control command also can convert RS232 control command form to and send to described television receive terminal.
Further, among the step C, receive the RF signal of described digital television signal generator transmission when described television receive terminal after, image pick-up card begins to gather the LVDS or the CVBS picture signal of receiving terminal output and converts the PCIE data flow to and is sent to described controlling computer, described controlling computer is reduced into view data to PCIE data flow decoding, and with database in standard picture compare.
The present invention also provides a kind of Auto-Test System of Digital Television receptivity parameter, comprise tested television receive terminal, digital television signal generator, IMAQ card device, controlling computer, the input of wherein said television receive terminal is connected with the digital television signal generator, and output is connected with the IMAQ card device; Described controlling computer is connected with described television receive terminal, digital television signal generator, IMAQ card device respectively;
Described controlling computer is provided with index project that needs test and the operation control command of controlling described television receive terminal, transmit data and give described digital television signal generator, the control command of transmit operation simultaneously carries out the frequency points corresponding setting for described television receive terminal;
Described controlling computer is obtained the view data of described television receive terminal output by image pick-up card, and with database in standard picture compare, when meeting test request, described controlling computer can send according to current test event and progressively reduce the order of test image signal quality to described digital television signal generator, and continue the monitoring view data up to standard picture when inconsistent, record described digital television signal generator this moment data lower limit performance index are set; Described controlling computer sends and progressively improves the order of test image signal quality to described digital television signal generator, and continue the monitoring view data when just exceeding the index of range of receiving, record described digital television signal generator this moment data upper limit performance index are set; Test the receptivity index test that can enter next channel after all combined test projects of a channel automatically, so repeat up to the receptivity index that tests all channels automatically.
Further, after testing the index project of setting, described controlling computer can be automatically generates the test report of a complete television reception performance index 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.
The automatic test approach and the system of the Digital Television receptivity parameter that intellectuality of the present invention is high have following advantage:
1, 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.
2, the present invention can be switched on different television set data platforms fast by the method for image comparison, accomplishes with to survey, and is compatible high, need not to be provided with multiple decoder driver, and simple to operate, test accurately.
Description of drawings
Fig. 1 is the automatic test approach schematic flow sheet of the Digital Television receptivity parameter that provides of the embodiment of the invention one.
Fig. 2 is that the Auto-Test System data of the Digital Television receptivity parameter that provides of the embodiment of the invention two transmit schematic diagram.
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 Digital Television receptivity parameter that the embodiment of the invention one provides comprises step:
101, the input with tested television receive terminal is connected with the digital television signal generator, output and IMAQ card connection.
102, by controlling computer index project that needs test and the operation control command of controlling described television receive terminal are set, transmit data and give described digital television signal generator, the control command of transmit operation simultaneously carries out the frequency points corresponding setting for described television receive terminal.
The operation control command can obtain by remotely controlled, and is transmitted to described television receive terminal and controls; The operation control command also can convert RS232 control command form to and send to described television receive terminal.
Just be included in the different protection test of the performance index under hundreds of combination condition under (1/4,1/8,1/16,1/32), interior error correction code rate (1/2,2/3,3/4,5/6,7/8), bandwidth (6M, 7M, 8M), the modulation system (QPSK, 16QAM, 64QAM) at interval in the index project that same frequency need be tested; can be arranged in advance on the detection list, system reads automatically needs the index project of test to test.
103, described controlling computer is obtained the view data of described television receive terminal output by image pick-up card, and with database in standard picture compare.Concrete, receive the RF signal of described digital television signal generator transmission when described television receive terminal after, image pick-up card begins to gather the LVDS or the CVBS picture signal of receiving terminal output and converts the PCIE data flow to and is sent to described controlling computer, described controlling computer is reduced into view data to PCIE data flow decoding, and with database in standard picture compare.
When meeting test request, described controlling computer can send according to current test event and progressively reduce the order of test image signal quality to described digital television signal generator, and continue the monitoring view data up to standard picture when inconsistent, record described digital television signal generator this moment data lower limit performance index are set;
Described controlling computer sends and progressively improves the order of test image signal quality to described digital television signal generator, and continue the monitoring view data when just exceeding the index of range of receiving, record described digital television signal generator this moment data upper limit performance index are set; Test the receptivity index test that can enter next channel after all combined test projects of a channel automatically, so repeat up to the receptivity index project that tests all channels automatically.
As a kind of improved procedure, also can comprise step:
104, test the test event of setting after, described controlling 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 2, the Auto-Test System of a kind of Digital Television receptivity parameter that the embodiment of the invention two provides, comprise tested television receive terminal, digital television signal generator, IMAQ card device, controlling computer, the input of wherein said television receive terminal is connected with the digital television signal generator, and output is connected with the IMAQ card device; Described controlling computer is connected with described television receive terminal, digital television signal generator, IMAQ card device respectively;
Described controlling computer is provided with index project that needs test and the operation control command of controlling described television receive terminal, transmit data and give described digital television signal generator, the control command of transmit operation simultaneously carries out the frequency points corresponding setting for described television receive terminal;
Described controlling computer is obtained the view data of described television receive terminal output by image pick-up card, and with database in standard picture compare, when meeting test request, described controlling computer can send according to current test event and progressively reduce the order of test image signal quality to described digital television signal generator, and continue the monitoring view data up to standard picture when inconsistent, record described digital television signal generator this moment data lower limit performance index are set; Described controlling computer sends and progressively improves the order of test image signal quality to described digital television signal generator, and continue the monitoring view data when just exceeding the index of range of receiving, record described digital television signal generator this moment data upper limit performance index are set; Test the receptivity index test that can enter next channel after all combined test projects of a channel automatically, so repeat up to the receptivity index that tests all channels automatically.
Further, after testing the test event of setting, described controlling 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.
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 can be switched on different television set data platforms fast by the method for image comparison, accomplishes with to survey, and is compatible high, need not to be provided with multiple decoder driver, and simple to operate, test accurately.
The above is a 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 (6)
1. the automatic test approach of a Digital Television receptivity parameter is characterized in that, comprises step:
A, the input of tested television receive terminal is connected output and IMAQ card connection with the digital television signal generator;
B, index project that needs test and the operation control command of controlling described television receive terminal are set by controlling computer, transmit data and give described digital television signal generator, send described operation control command simultaneously and carry out the frequency points corresponding setting to described television receive terminal;
C, described controlling computer are obtained the view data of described television receive terminal output by image pick-up card, and with database in standard picture compare, when meeting test request, described controlling computer can send according to current test event and progressively reduce the order of test image signal quality to described digital television signal generator, and continue the monitoring view data up to standard picture when inconsistent, record described digital television signal generator this moment data lower limit performance index are set;
Described controlling computer sends and progressively improves the order of test image signal quality to described digital television signal generator, and continue the monitoring view data when just exceeding the index of range of receiving, record described digital television signal generator this moment data upper limit performance index are set; Test the receptivity index test that can enter next channel after all combined test projects of a channel automatically, so repeat up to the receptivity index that tests all channels automatically.
2. according to the described automatic test approach of claim 1, it is characterized in that, also comprise step:
D, test the index project of setting after, described controlling 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.
3. according to the described automatic test approach of claim 1, it is characterized in that, among the step B
The operation control command can obtain by remotely controlled, and is transmitted to described television receive terminal and controls; The operation control command also can convert RS232 control command form to and send to described television receive terminal.
4. according to the described automatic test approach of claim 1, it is characterized in that, among the step C
Receive the RF signal of described digital television signal generator transmission when described television receive terminal after, image pick-up card begins to gather the LVDS or the CVBS picture signal of receiving terminal output and converts the PCIE data flow to and is sent to described controlling computer, described controlling computer is reduced into view data to PCIE data flow decoding, and with database in standard picture compare.
5. the Auto-Test System of a Digital Television receptivity parameter, it is characterized in that, comprise tested television receive terminal, digital television signal generator, IMAQ card device, controlling computer, the input of wherein said television receive terminal is connected with the digital television signal generator, and output is connected with the IMAQ card device; Described controlling computer is connected with described television receive terminal, digital television signal generator, IMAQ card device respectively;
Described controlling computer is provided with index project that needs test and the operation control command of controlling described television receive terminal, transmit data and give described digital television signal generator, the control command of transmit operation simultaneously carries out the frequency points corresponding setting for described television receive terminal;
Described controlling computer is obtained the view data of described television receive terminal output by image pick-up card, and with database in standard picture compare, when meeting test request, described controlling computer can send according to current test event and progressively reduce the order of test image signal quality to described digital television signal generator, and continue the monitoring view data up to standard picture when inconsistent, record described digital television signal generator this moment data lower limit performance index are set; Described controlling computer sends and progressively improves the order of test image signal quality to described digital television signal generator, and continue the monitoring view data when just exceeding the index of range of receiving, record described digital television signal generator this moment data upper limit performance index are set; Test the receptivity index test that can enter next channel after all combined test projects of a channel automatically, so repeat up to the receptivity index that tests all channels automatically.
6. according to the described Auto-Test System of claim 5, it is characterized in that, after testing the index project of setting, described controlling 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.
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| CN102523475A (en) * | 2011-12-08 | 2012-06-27 | 深圳创维－Rgb电子有限公司 | Testing method and device for electronic products, and television |
| CN103024434A (en) * | 2012-12-20 | 2013-04-03 | 广州视源电子科技股份有限公司 | Automatic test system based on image matching |
| CN105338344A (en) * | 2015-11-06 | 2016-02-17 | 广东长虹电子有限公司 | Intelligent television system test method |
| CN105376644A (en) * | 2015-11-13 | 2016-03-02 | 深圳市创维软件有限公司 | Method, device and system for testing sensitivity of tuner of set top box |
| CN105468481A (en) * | 2014-08-22 | 2016-04-06 | 比亚迪股份有限公司 | Vehicle-mounted multimedia audio system test method and device, and vehicle-mounted multimedia system |
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| CN105516713A (en) * | 2015-12-24 | 2016-04-20 | 招商局重庆交通科研设计院有限公司 | Image quality evaluation method of road traffic closed-circuit television based on machine vision |
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| CN107197120A (en) * | 2017-05-27 | 2017-09-22 | 电子科技大学 | Image source compatibility testing method and system |
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| CN113852808A (en) * | 2021-09-24 | 2021-12-28 | 杭州国芯科技股份有限公司 | Automatic testing system and testing method for set top box channel |
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| CN102523475A (en) * | 2011-12-08 | 2012-06-27 | 深圳创维－Rgb电子有限公司 | Testing method and device for electronic products, and television |
| CN103024434A (en) * | 2012-12-20 | 2013-04-03 | 广州视源电子科技股份有限公司 | Automatic test system based on image matching |
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| CN105468481B (en) * | 2014-08-22 | 2019-10-11 | 比亚迪股份有限公司 | Test method, device and the in-vehicle multi-media system of vehicle mounted multimedia audio system |
| CN105468481A (en) * | 2014-08-22 | 2016-04-06 | 比亚迪股份有限公司 | Vehicle-mounted multimedia audio system test method and device, and vehicle-mounted multimedia system |
| CN105338344A (en) * | 2015-11-06 | 2016-02-17 | 广东长虹电子有限公司 | Intelligent television system test method |
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| CN105472385A (en) * | 2015-11-26 | 2016-04-06 | 深圳创维数字技术有限公司 | Video decoding and image output quality detection method and system |
| CN105516713A (en) * | 2015-12-24 | 2016-04-20 | 招商局重庆交通科研设计院有限公司 | Image quality evaluation method of road traffic closed-circuit television based on machine vision |
| CN105704485A (en) * | 2016-02-02 | 2016-06-22 | 广州视源电子科技股份有限公司 | Performance parameter detection method and system of display equipment |
| WO2017133359A1 (en) * | 2016-02-02 | 2017-08-10 | 广州视源电子科技股份有限公司 | Method and system for measuring performance parameter of display device |
| WO2017193772A1 (en) * | 2016-05-11 | 2017-11-16 | 晶晨半导体(上海)有限公司 | System and method for automatically testing performance of dtmb |
| CN106412565A (en) * | 2016-08-31 | 2017-02-15 | 江苏银河电子股份有限公司 | Testing system and method for wired light tuner |
| CN106454329A (en) * | 2016-10-26 | 2017-02-22 | 中国电子产品可靠性与环境试验研究所 | Image acquisition detection system and method |
| CN107197120A (en) * | 2017-05-27 | 2017-09-22 | 电子科技大学 | Image source compatibility testing method and system |
| CN107197120B (en) * | 2017-05-27 | 2019-08-13 | 电子科技大学 | Image source compatibility testing method and system |
| CN107465915A (en) * | 2017-09-20 | 2017-12-12 | 广州视源电子科技股份有限公司 | Fault detection device and system |
| CN113852808A (en) * | 2021-09-24 | 2021-12-28 | 杭州国芯科技股份有限公司 | Automatic testing system and testing method for set top box channel |
| CN113852808B (en) * | 2021-09-24 | 2024-03-29 | 杭州国芯科技股份有限公司 | Automatic testing method for set top box channel |
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