Rapid method for detecting terrestrial digital television product performance under experiment (test) room environment and radio frequency test stream library

Abstract

The invention provides a rapid method for detecting terrestrial digital television product performance under the experiment (test) room environment and a radio frequency test stream library. The radio frequency test stream library is formed through the method that radio frequency test stream recording equipment, instead of a television product to be tested, is connected to a set of test system provided by the invention, the test system sequentially outputs radio frequency test streams according to test items, and all the radio frequency test streams are recorded by the radio frequency test stream recording equipment. The radio frequency test stream library is loaded into radio frequency test stream playing equipment and then directly connected with the product to be tested so as to start testing the product to be tested. The radio frequency test stream library enables detection departments to reduce hardware investment and human resource investment, is simple in detecting method and easy to operate, improves the accuracy of detection work, and guarantees that detection results of all the detection departments are consistent.

Description

Technical field [0001] The invention belongs to the technical field of digital television testing, and specifically relates to a rapid method and radio frequency test stream library for ground digital television product performance testing in an experimental (test) room environment. Background technique [0002] The performance testing of terrestrial digital TV products under the existing experimental (laboratory) room conditions is to build a testing platform with multiple instruments. The input signals of these instruments and equipment are baseband signals, such as audio, video, and data. Then, by controlling various devices to simulate different channel environments, the main test signals and interference test signals with different signal levels are generated and finally mixed to be used for performance. The detected test signal is used to determine whether the terrestrial digital TV product is received and processed normally, so as to achieve the purpose of detection. [000...

AI Technical Summary

Problems solved by technology

[0007] (2) The system is complex and difficult to operate;

[0009] (3) There are many operating links, and the possibility of misoperation is high;

[0011] (4) The inconsistency of test results obtained by different testing units may be high;

[0012] Due to the inconsistency in the testing environment and experimental (test) equipment of each testing unit, and the testing personnel have the same understanding of the testing method, the testing results of different testing units for the same product may also be inconsistent.

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