CN101448179B - Automatic digital television receiving terminal test system, method and test equipment - Google Patents
Automatic digital television receiving terminal test system, method and test equipment Download PDFInfo
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- CN101448179B CN101448179B CN200810241568.7A CN200810241568A CN101448179B CN 101448179 B CN101448179 B CN 101448179B CN 200810241568 A CN200810241568 A CN 200810241568A CN 101448179 B CN101448179 B CN 101448179B
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Abstract
The invention belongs to the technical field of automatic test, and provides an automatic digital television receiving terminal test system and equipment. The system comprises the test equipment, a test signal transmitter and a tested digital television receiving terminal, wherein, the test equipment acquires the parameter information of the tested digital television receiving terminal and transmits the parameter information to the test signal transmitter; the test equipment acquires the parameter information of the test signal transmitter and transmits the parameter information to the tested digital television receiving terminal; the test signal transmitter transmits a test signal according to the parameter information of the tested digital television receiving terminal; the digital television receiving terminal to be tested acquires the test signal transmitted by the test signal transmitter according to the parameter information of the test signal transmitter, detects the acquired test signal and transmits the detection result to the test equipment; and the test equipment calculates and analyzes the detection result to obtain the test result of the tested receiving terminal. The system has the advantages of high efficiency and resource conservation.
Description
Technical field
The invention belongs to automatic test technology field, relate in particular to a kind of automatic digital television receiving terminal test system, method and testing equipment.
Background technology
The test of receiving terminal for digital television is a more loaded down with trivial details job, and under the conditions such as different bandwidth (6MHZ/7MHZ/8MHZ), symbol rate and modulation system, test reception signal C/N (signal to noise ratio) index and incoming level are cumbersome things.
For example, when test C/N index, need the different situation of the corresponding many kinds of level that arranges, need manual input in every particular, and test every and also need to wait for a period of time to observe Output rusults; For example on TV, whether occur that mosaic, television image show whether normal etc., every test after, also need the manually result of record test, comprise that abnormal, mosaic phenomenon, incoming level occur in test, the variations of signal to noise ratio etc., during test incoming level, situation is also similar
Obviously, above-mentioned method of testing not only efficiency is low, and labor intensive material resources considerably.
Summary of the invention
The object of the present invention is to provide a kind of automatic digital television receiving terminal test system, be intended to solve in prior art, the process brought due to manual testing's receiving terminal for digital television is loaded down with trivial details, the problem of inefficiency and the wasting of resources.
The present invention is achieved in that a kind of automatic digital television receiving terminal test system, and described system comprises testing equipment, test signal transmitter and tested receiving terminal,
Described testing equipment is obtained the parameter information of measured number television receive terminal, and the parameter information of described measured number television receive terminal is sent to described test signal transmitter, the parameter information of described measured number television receive terminal comprises type, frequency, modulation system, symbol rate, bandwidth, rolloff-factor, forward error correction kind, protection interval, the time-interleaved degree of depth;
Described testing equipment is obtained the parameter information of test signal transmitter, and the parameter information of test signal transmitter is sent to described measured number television receive terminal;
Described test signal transmitter is according to the parameter information emissioning testing signal of described measured number television receive terminal;
Described measured number television receive terminal obtains the test signal of described test signal transmitter transmitting according to the parameter information of described test signal transmitter, and the test signal of obtaining is detected, and described testing result is sent to described testing equipment;
The testing result that described testing equipment is returned according to described measured number television receive terminal is carried out computational analysis, obtains the test result of described measured number television receive terminal.
Another object of the present invention is to provide a kind of automatic digital television receiving terminal test equipment, described equipment comprises:
Parameter information acquisition module, for obtaining the parameter information of measured number television receive terminal and test signal transmitter, the parameter information of measured number television receive terminal comprises type, frequency, modulation system, symbol rate, bandwidth, rolloff-factor, forward error correction kind, protection interval, the time-interleaved degree of depth;
Parameter information sending module, for the parameter information of the measured number television receive terminal obtaining is sent to described test signal transmitter, is sent to described measured number television receive terminal by the parameter information of the test signal transmitter obtaining;
Testing result receiver module, the testing result of returning for receiving described measured number television receive terminal;
Tested receiving terminal test module, carries out computational analysis for the testing result of returning according to described measured number television receive terminal, obtains the test result of described measured number television receive terminal.
Another object of the present invention is to provide a kind of automatic digital television receiving terminal test method, said method comprising the steps of:
Testing equipment is obtained the parameter information of measured number television receive terminal, and the parameter information of described measured number television receive terminal is sent to test signal transmitter, the parameter information of described measured number television receive terminal comprises type, frequency, modulation system, symbol rate, bandwidth, rolloff-factor, forward error correction kind, protection interval, the time-interleaved degree of depth;
Described testing equipment is obtained the parameter information of described test signal transmitter, and the parameter information of described test signal transmitter is sent to described measured number television receive terminal;
Described test signal transmitter is according to the parameter information emissioning testing signal of described measured number television receive terminal;
Described measured number television receive terminal obtains the test signal of described test signal transmitter transmitting according to the parameter information of described test signal transmitter, and the test signal of obtaining is detected, and described testing result is sent to described testing equipment;
The testing result that described testing equipment is returned according to described measured number television receive terminal is carried out computational analysis, obtains the test result of described measured number television receive terminal.
The present invention is by carrying out parameter setting by testing equipment to test signal transmitter and measured number television receive terminal, control both and carry out transmitting and receiving of signal according to parameter, and according to the testing result of measured number television receive terminal, draw the test result of this measured number television receive terminal, improve greatly the testing efficiency of receiving terminal, saved test resource.
Accompanying drawing explanation
Fig. 1 is the structure chart of automatic digital television receiving terminal test system provided by the invention;
Fig. 2 is the structure chart of automatic digital television receiving terminal test equipment provided by the invention;
Fig. 3 is the flow chart of automatic digital television receiving terminal test method provided by the invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention is by carrying out parameter setting by testing equipment to test signal transmitter and measured number television receive terminal, control both and carry out transmitting and receiving of signal according to parameter, and according to the testing result of measured number television receive terminal, draw the test result of this measured number television receive terminal.
Refer to Fig. 1, the structure chart that Fig. 1 is automatic digital television receiving terminal test system provided by the invention.This system comprises testing equipment, test signal transmitter and measured number television receive terminal.
Wherein, testing equipment is used for obtaining the parameter information of measured number television receive terminal, and the parameter information of measured number television receive terminal is sent to test signal transmitter.
In specific implementation process, testing equipment is positioned at PC end, by gpib bus and test signal transmitter, communicates.
Testing equipment and communicating by letter of test signal transmitter are mainly concerned with the setting of some parameters, the type that comprises measured number television receive terminal, frequency, modulation system, symbol rate, bandwidth, rolloff-factor, forward error correction (Forward Error Correction, FEC) kind, protection interval, the time-interleaved degree of depth etc., these parameters are at digital video broadcasting (Digital Video Broadcasting, DVB)-T, DVB-C, under the different standard such as DVB-S, there is different requirements, different types also needs to arrange dissimilar parameter, the magnitude range of parameter also has certain regulation.
Testing equipment is obtained the parameter information of test signal transmitter, and the parameter information of test signal transmitter is sent to measured number television receive terminal,
In specific implementation process, testing equipment communicates by Serial Port Line and measured number television receive terminal.
Testing equipment and communicating by letter of measured number television receive terminal are mainly the parameter informations of testing equipment test signal transmitter that it is obtained, for example the parameter information such as the frequency of this transmitter, symbol rate, modulation system sends to measured number television receive terminal, to this measured number television receive terminal frequency locking, receive signal.
After measured number television receive terminal sets according to the parameter information receiving, test signal transmitter is according to parameter information emissioning testing signal.
After test signal transmitter sets corresponding parameter, the index of test, arranges automatically and tests as required.For example, in the time of need to testing C/N index, test signal transmitter just arranges corresponding level; During test incoming level, test signal transmitter will arrange corresponding C/N.
Now, measured number television receive terminal obtains the test signal of test signal transmitter transmitting according to parameter information, and the test signal of obtaining is detected, and testing result is sent to testing equipment.
In specific implementation process, measured number television receive terminal receives according to the parameter information of test signal transmitter (the Radio Frequency of the radio frequency through setting that this test signal transmitter sends, RF) signal, level and signal to noise ratio to received signal detect, and the results such as the error rate are fed back to testing equipment by serial ports.
The testing result that testing equipment is returned according to measured number television receive terminal is carried out computational analysis, obtains the test result of measured number television receive terminal.
In specific implementation process, testing equipment is returned to the next information such as the error rate according to measured number television receive terminal, according to the error rate, in conjunction with minimax level value or the signal to noise ratio of the current frequencies of other calculation of parameter such as test step-length, testing time, obtain the test result of measured number television receive terminal.
The present invention has realized automatic test completely, manpower and materials have been saved greatly, in the process of test, do not need artificial participation, it can carry out parameter configuration, state conversion and the analysis to test result automatically, and report is returned to our tester, tester just will verify just passable, time saving and energy saving to the anomaly in report.
The present invention also provides a kind of testing equipment, refers to Fig. 2.This testing equipment comprises parameter information acquisition module 21, parameter information sending module 22, testing result receiver module 23 and tested receiving terminal test module 24.
Wherein, parameter information acquisition module 21 obtains the parameter information of measured number television receive terminal and test signal transmitter.
Parameter information sending module 22 is sent to test signal transmitter by the parameter information of the measured number television receive terminal obtaining, and the parameter information of the test signal transmitter obtaining is sent to measured number television receive terminal.
Testing result receiver module 23 receives the testing result that measured number television receive terminal returns.
The testing result that tested receiving terminal test module 24 returns according to measured number television receive terminal is carried out computational analysis, obtains the test result of measured number television receive terminal.
Preferably, testing equipment communicates by gpib bus and test signal transmitter.
Preferably, testing equipment communicates by Serial Port Line and measured number television receive terminal.
Wherein, the parameter information of tested receiving terminal comprises frequency, symbol rate, the modulation system of receiving terminal.The parameter information of test signal transmitter comprises frequency, symbol rate, the modulation system of this transmitter.
Testing equipment is returned to the next information such as the error rate according to measured number television receive terminal, according to the error rate, in conjunction with minimax level value or the signal to noise ratio of the current frequencies of other calculation of parameter such as test step-length, testing time.
The present invention also provides a kind of automatic digital television receiving terminal test method, refers to Fig. 3.
In step S101, testing equipment is obtained the parameter information of measured number television receive terminal, and the parameter information of measured number television receive terminal is sent to test signal transmitter.
Preferably, testing equipment communicates by gpib bus and test signal transmitter.
In step S102, testing equipment is obtained the parameter information of test signal transmitter, and the parameter information of test signal transmitter is sent to measured number television receive terminal.
Preferably, testing equipment communicates by Serial Port Line and measured number television receive terminal.
Certainly, in specific implementation process, above-mentioned two steps be in no particular order order, only for convenience of explanation above-mentioned two steps are distinguished herein.
In step S103, test signal transmitter is according to the parameter information emissioning testing signal of measured number television receive terminal.
In step S104, measured number television receive terminal obtains the test signal of test signal transmitter transmitting according to the parameter information of test signal transmitter, and the test signal of obtaining is detected, and testing result is sent to described testing equipment;
In step S105, the testing result that testing equipment is returned according to measured number television receive terminal is carried out computational analysis, obtains the test result of measured number television receive terminal.
In specific implementation process, testing equipment is returned to the next information such as the error rate according to measured number television receive terminal, according to the error rate, in conjunction with minimax level value or the signal to noise ratio of the current frequencies of other calculation of parameter such as test step-length, testing time, obtain the test result of measured number television receive terminal.
The present invention is by carrying out parameter setting by testing equipment to test signal transmitter and measured number television receive terminal, control both and carry out transmitting and receiving of signal according to parameter, and according to the testing result of measured number television receive terminal, draw the test result of this measured number television receive terminal, improve greatly the testing efficiency of receiving terminal for digital television, saved test resource.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an automatic digital television receiving terminal test system, is characterized in that, described system comprises testing equipment, test signal transmitter and measured number television receive terminal,
Described testing equipment is obtained the parameter information of measured number television receive terminal, and the parameter information of described measured number television receive terminal is sent to described test signal transmitter, the parameter information of described measured number television receive terminal is following one or more: type, frequency, modulation system, symbol rate, bandwidth, rolloff-factor, forward error correction kind, protection interval, the time-interleaved degree of depth;
Described testing equipment is obtained the parameter information of test signal transmitter, and the parameter information of test signal transmitter is sent to described measured number television receive terminal;
Described test signal transmitter is according to the parameter information emissioning testing signal of described measured number television receive terminal;
Described measured number television receive terminal obtains the test signal of described test signal transmitter transmitting according to the parameter information of described test signal transmitter, and the test signal of obtaining is detected, and described testing result is sent to described testing equipment;
The testing result that described testing equipment is returned according to described measured number television receive terminal is carried out computational analysis, obtains the test result of described measured number television receive terminal.
2. automatic digital television receiving terminal test system as claimed in claim 1, is characterized in that, described testing equipment communicates by gpib bus and described test signal transmitter.
3. automatic digital television receiving terminal test system as claimed in claim 1, is characterized in that, described testing equipment communicates by Serial Port Line and described measured number television receive terminal.
4. automatic digital television receiving terminal test system as claimed in claim 1, is characterized in that, the parameter information of described test signal transmitter is following one or more: the frequency of this transmitter, symbol rate, modulation system.
5. an automatic digital television receiving terminal test equipment, is characterized in that, described testing equipment comprises:
Parameter information acquisition module, for obtaining the parameter information of measured number television receive terminal and test signal transmitter, the parameter information of measured number television receive terminal is following one or more: type, frequency, modulation system, symbol rate, bandwidth, rolloff-factor, forward error correction kind, protection interval, the time-interleaved degree of depth;
Parameter information sending module, for the parameter information of the measured number television receive terminal obtaining is sent to described test signal transmitter, is sent to described measured number television receive terminal by the parameter information of the test signal transmitter obtaining;
Testing result receiver module, the testing result of returning for receiving described measured number television receive terminal;
Tested receiving terminal test module, carries out computational analysis for the testing result of returning according to described measured number television receive terminal, obtains the test result of described measured number television receive terminal.
6. automatic digital television receiving terminal test equipment as claimed in claim 5, is characterized in that, described testing equipment communicates by gpib bus and described test signal transmitter.
7. automatic digital television receiving terminal test equipment as claimed in claim 5, is characterized in that, described testing equipment communicates by Serial Port Line and described measured number television receive terminal.
8. an automatic digital television receiving terminal test method, is characterized in that, said method comprising the steps of:
Testing equipment is obtained the parameter information of measured number television receive terminal, and the parameter information of described measured number television receive terminal is sent to test signal transmitter, the parameter information of described measured number television receive terminal is following one or more: type, frequency, modulation system, symbol rate, bandwidth, rolloff-factor, forward error correction kind, protection interval, the time-interleaved degree of depth;
Described testing equipment is obtained the parameter information of described test signal transmitter, and the parameter information of described test signal transmitter is sent to described measured number television receive terminal;
Described test signal transmitter is according to the parameter information emissioning testing signal of described measured number television receive terminal;
Described measured number television receive terminal obtains the test signal of described test signal transmitter transmitting according to the parameter information of described test signal transmitter, and the test signal of obtaining is detected, and described testing result is sent to described testing equipment;
The testing result that described testing equipment is returned according to described measured number television receive terminal is carried out computational analysis, obtains the test result of described measured number television receive terminal.
9. automatic digital television receiving terminal test method as claimed in claim 8, is characterized in that, described testing equipment communicates by gpib bus and described test signal transmitter.
10. automatic digital television receiving terminal test method as claimed in claim 8, is characterized in that, described testing equipment communicates by Serial Port Line and described measured number television receive terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200810241568.7A CN101448179B (en) | 2008-12-24 | 2008-12-24 | Automatic digital television receiving terminal test system, method and test equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810241568.7A CN101448179B (en) | 2008-12-24 | 2008-12-24 | Automatic digital television receiving terminal test system, method and test equipment |
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| CN101448179A CN101448179A (en) | 2009-06-03 |
| CN101448179B true CN101448179B (en) | 2014-11-26 |
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| CN200810241568.7A Expired - Fee Related CN101448179B (en) | 2008-12-24 | 2008-12-24 | Automatic digital television receiving terminal test system, method and test equipment |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778309B (en) * | 2010-01-12 | 2012-07-04 | 北京航空航天大学 | Closed-loop testing device for digital television system and testing method thereof |
| CN101938671A (en) * | 2010-08-31 | 2011-01-05 | 中山大学 | Digital television integrated test system and method thereof |
| CN102487449A (en) * | 2010-12-02 | 2012-06-06 | 深圳市同洲电子股份有限公司 | Video signal test method of digital television receiving terminal and system thereof |
| CN102685543B (en) * | 2011-03-09 | 2016-01-20 | 神讯电脑(昆山)有限公司 | Video signal test system and method |
| CN102244806A (en) * | 2011-06-27 | 2011-11-16 | 广州视源电子科技有限公司 | Method and system for automatically testing reception performance parameters of digital television |
| CN103002318B (en) * | 2012-12-05 | 2015-02-04 | 深圳创维数字技术股份有限公司 | Automatic test method and automatic test system of digital television receiving terminal |
| WO2018133083A1 (en) * | 2017-01-23 | 2018-07-26 | Microsoft Technology Licensing, Llc. | Quantitative measurement of video system |
| CN107835459A (en) * | 2017-11-20 | 2018-03-23 | 深圳市亿联智能有限公司 | A kind of tuner performance automatic test methods based on pattern of fusion set top box |
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| CN1567801A (en) * | 2003-06-25 | 2005-01-19 | 华为技术有限公司 | Radio-frequency indicator testing method |
| CN101291506A (en) * | 2008-06-04 | 2008-10-22 | 青岛海信移动通信技术股份有限公司 | TDSCDMA terminal testing system and testing method for transmitter and receiver |
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| US6741277B1 (en) * | 2000-01-13 | 2004-05-25 | Koninklijke Philips Electronics N.V. | System and method for automated testing of digital television receivers |
| WO2003009578A2 (en) * | 2001-07-19 | 2003-01-30 | Thomson Licensing S.A. | Robust reception of digital broadcast transmission |
| CN101282494B (en) * | 2007-04-04 | 2010-05-26 | 中兴通讯股份有限公司 | Method for testing receiving performance of digital television receiving terminal |
| CN101272482A (en) * | 2008-01-29 | 2008-09-24 | 深圳市同洲电子股份有限公司 | Method and system for network media communication long-range control and media capturing equipment |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567801A (en) * | 2003-06-25 | 2005-01-19 | 华为技术有限公司 | Radio-frequency indicator testing method |
| CN101291506A (en) * | 2008-06-04 | 2008-10-22 | 青岛海信移动通信技术股份有限公司 | TDSCDMA terminal testing system and testing method for transmitter and receiver |
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