CN101448179A - 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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- CN101448179A CN101448179A CNA2008102415687A CN200810241568A CN101448179A CN 101448179 A CN101448179 A CN 101448179A CN A2008102415687 A CNA2008102415687 A CN A2008102415687A CN 200810241568 A CN200810241568 A CN 200810241568A CN 101448179 A CN101448179 A CN 101448179A
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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 the 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 test received signal C/N (signal to noise ratio) index and incoming level are cumbersome things under conditions such as different bandwidth (6MHZ/7MHZ/8MHZ), symbol rate and modulation system.
For example, when test C/N index, need the different situation of the corresponding many kinds of level that is provided with, need manual input in every particular, and test every and also need to wait for a period of time with observation output result; For example whether occur on the TV mosaic, television image show whether normal etc., every test after, also need the manually result of record test, comprise that unusual, mosaic phenomenon, incoming level take place in test, the variations of signal to noise ratio etc., situation is also similar during the test incoming level
Obviously, above-mentioned method of testing not only efficient 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 the prior art, because the process brought of 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;
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 emission 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;
Described testing equipment is carried out computational analysis according to the testing result that described measured number television receive terminal returns, and 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:
The parameter information acquisition module is used to obtain the parameter information of measured number television receive terminal and test signal transmitter;
The parameter information sending module, the parameter information that is used for the measured number television receive terminal that will obtain is sent to described test signal transmitter, and the parameter information of the test signal transmitter that obtains is sent to described measured number television receive terminal;
The testing result receiver module is used to receive the testing result that described measured number television receive terminal returns;
Tested receiving terminal test module is used for carrying out computational analysis according to the testing result that described measured number television receive terminal returns, and obtains the test result of described measured number television receive terminal.
Another purpose 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 the test signal transmitter;
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 emission 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;
Described testing equipment is carried out computational analysis according to the testing result that described measured number television receive terminal returns, and obtains the test result of described measured number television receive terminal.
The present invention is by carrying out the 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 draw the test result of this measured number television receive terminal according to the testing result of measured number television receive terminal, improve the testing efficiency of receiving terminal greatly, saved test resource.
Description of drawings
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 purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention is by carrying out the 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, and draw the test result of this measured number television receive terminal according to the testing result of measured number television receive terminal according to parameter.
See also Fig. 1, Fig. 1 is the structure chart of 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 to obtain the parameter information of measured number television receive terminal, and the parameter information of measured number television receive terminal is sent to the test signal transmitter.
In specific implementation process, testing equipment is positioned at the PC end, communicates by gpib bus and test signal transmitter.
Testing equipment and communicating by letter of test signal transmitter are mainly concerned with the setting of some parameters; the type that comprises the measured number television receive terminal; frequency; modulation system; symbol rate; bandwidth; rolloff-factor; forward error correction (Forward Error Correction; FEC) kind; protection at 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 different requirements is arranged; different types also needs to be provided with dissimilar parameters, and 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 the measured number television receive terminal,
In specific implementation process, testing equipment communicates by Serial Port Line and measured number television receive terminal.
The parameter information of testing equipment and communicating by letter of the measured number television receive terminal test signal transmitter that mainly to be testing equipment obtain it, for example parameter informations such as the frequency of this transmitter, symbol rate, modulation system send to the measured number television receive terminal, so that this measured number television receive terminal frequency locking, received signal.
After the measured number television receive terminal set according to the parameter information that receives, the test signal transmitter was according to the parameter information emissioning testing signal.
The test signal transmitter sets after the relevant parameters, and Ce Shi index is provided with automatically and tests as required.For example, when needing test C/N index, the test signal transmitter just is provided with corresponding level; During the test incoming level, the test signal transmitter will be provided with corresponding C/N.
At this moment, the measured number television receive terminal obtains the test signal of test signal transmitter emission according to parameter information, and the test signal of obtaining is detected, and testing result is sent to testing equipment.
In specific implementation process, the measured number television receive terminal receives (the Radio Frequency of the radio frequency through setting that this test signal transmitter sends according to the parameter information of test signal transmitter, RF) signal, to received signal level and signal to noise ratio detect, and results such as the error rate are fed back to testing equipment by serial ports.
Testing equipment is carried out computational analysis according to the testing result that the measured number television receive terminal returns, and obtains the test result of measured number television receive terminal.
In specific implementation process, testing equipment is returned next information such as the error rate according to the measured number television receive terminal, according to the error rate, in conjunction with the 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 fully, manpower and materials have been saved greatly, do not need artificial participation in the process of test, it can carry out parameter configuration, state exchange and automatically to the analysis of test result, and report returned to our tester, the tester just will verify just passable, time saving and energy saving to the anomaly in the report.
The present invention also provides a kind of testing equipment, sees also 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 the test signal transmitter with the parameter information of the measured number television receive terminal that obtains, and the parameter information of the test signal transmitter that obtains is sent to the measured number television receive terminal.
Testing result receiver module 23 receives the testing result that the measured number television receive terminal returns.
Tested receiving terminal test module 24 carries out computational analysis according to the testing result that the measured number television receive terminal returns, and 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 next information such as the error rate according to the measured number television receive terminal, according to the error rate, in conjunction with the 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, sees also 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 the 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 the 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 the order, only for convenience of explanation above-mentioned two steps are distinguished herein.
In step S103, the test signal transmitter is according to the parameter information emissioning testing signal of measured number television receive terminal.
In step S104, the measured number television receive terminal obtains the test signal of test signal transmitter emission 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, testing equipment is carried out computational analysis according to the testing result that the measured number television receive terminal returns, and obtains the test result of measured number television receive terminal.
In specific implementation process, testing equipment is returned next information such as the error rate according to the measured number television receive terminal, according to the error rate, in conjunction with the 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 the 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 draw the test result of this measured number television receive terminal according to the testing result of measured number television receive terminal, improve the testing efficiency of receiving terminal for digital television greatly, saved test resource.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1, a kind of 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;
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 emission 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;
Described testing equipment is carried out computational analysis according to the testing result that described measured number television receive terminal returns, and 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 measured number television receive terminal comprises the frequency of receiving terminal, symbol rate, modulation system.
5, automatic digital television receiving terminal test system as claimed in claim 1 is characterized in that, the parameter information of described test signal transmitter comprises the frequency of this transmitter, symbol rate, modulation system.
6, a kind of automatic digital television receiving terminal test equipment is characterized in that, described testing equipment comprises:
The parameter information acquisition module is used to obtain the parameter information of measured number television receive terminal and test signal transmitter;
The parameter information sending module, the parameter information that is used for the measured number television receive terminal that will obtain is sent to described test signal transmitter, and the parameter information of the test signal transmitter that obtains is sent to described measured number television receive terminal;
The testing result receiver module is used to receive the testing result that described measured number television receive terminal returns;
Tested receiving terminal test module is used for carrying out computational analysis according to the testing result that described measured number television receive terminal returns, and obtains the test result of described measured number television receive terminal.
7, automatic digital television receiving terminal test equipment as claimed in claim 6 is characterized in that, described testing equipment communicates by gpib bus and described test signal transmitter.
8, automatic digital television receiving terminal test equipment as claimed in claim 6 is characterized in that, described testing equipment communicates by Serial Port Line and described measured number television receive terminal.
9, a kind of 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 the test signal transmitter;
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 emission 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;
Described testing equipment is carried out computational analysis according to the testing result that described measured number television receive terminal returns, and obtains the test result of described measured number television receive terminal.
10, automatic digital television receiving terminal test method as claimed in claim 9 is characterized in that, described testing equipment communicates by gpib bus and described test signal transmitter.
11, automatic digital television receiving terminal test method as claimed in claim 9 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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| 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 true CN101448179A (en) | 2009-06-03 |
| CN101448179B CN101448179B (en) | 2014-11-26 |
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Cited By (8)
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| CN101938671A (en) * | 2010-08-31 | 2011-01-05 | 中山大学 | Digital television integrated test system and method thereof |
| 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 |
| 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 |
| 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 |
| CN102685543A (en) * | 2011-03-09 | 2012-09-19 | 神讯电脑(昆山)有限公司 | Video signal testing system and video signal testing method |
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| 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 |
| WO2018133083A1 (en) * | 2017-01-23 | 2018-07-26 | Microsoft Technology Licensing, Llc. | Quantitative measurement of video system |
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Cited By (9)
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| 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 |
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| 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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