Test system and test method for audio-video device

Abstract

A test system for audio-video device comprises an output control circuit, a sensing circuit, a storage medium and a processor. The sensing circuit detects the sensible conditions of the AVDUT (Audio-Video Device Under Test). The storage medium stores a test script and a verification data set related to the AVDUT, wherein the test script comprises a plurality of test instructions, and each of the test instructions comprises a plurality of test signals. The processor is configured to generate a test sequence related to the test instructions, and outputs a plurality of control signals to the AVDUT through the output control circuit according to the test sequence, and the processor determines whether an abnormal event occurs in the AVDUT according to said sensible conditions, when the abnormal event occurs, the processor determines whether to update the test script according to a comparison result.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This non-provisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No(s). 106145877 filed in Taiwan, R.O.C. on Dec. 27, 2017, the entire contents of which are hereby incorporated by reference.BACKGROUND1. Technical Field[0002]This invention relates to a test system and a test method for an audio-video device, and more particularly to a test system and a test method for an audio-video device with a function of automatically expanding test script.2. Related Art[0003]Audio-video devices, such as televisions, stereos, home cinema devices, etc., are commonly seen in households as home entertainment devices. The manufacturers of audio-video devices mostly have equality control departments or testing departments, which are responsible for various kinds of tests on the manufactured audio-video devices. The quality control departments or the testing departments usually perform manual or automation tests according to th...

AI Technical Summary

Benefits of technology

[0005]The test system for audio-video device according to an embodiment of the present invention comprises an output control circuit, a sensing circuit, a storage medium, and a processor. The sensing circuit is adapted to detect sensible conditions of the AVDUT (audio-video device under test). The storage medium stores a test script and a verification data set related to the AVDUT, wherein the test script comprises a plurality of test instructions, and each of the test instructions comprises a plurality of test signals. The processor connects to the output control circuit, the sensing circuit and the storage medium, wherein the processor generates a test sequence related to the plurality of test instructions and outputs a plurality of control signals to the AVDUT through the output control circuit according to the test sequence, and the processor compares said at least one sensible condition and the verification data to determine whether an abnormal event occurs in the AVDUT. When the abnormal event occurs, the processor sequentially writes at least one of the test signals into the storage medium. The processor compares said at least one written test signal and the test signals of one of the test instructions and determines whether to update the test script according to a comparison result.

[0036]In summary, the test system for audio-video device according to an embodiment of the present invention generates a new test sequence with multiple test instructions in the test scripts, wherein one or more new test sequences, which are randomly generated, do not exist in previous test scripts. Moreover, when an abnormal event occurs in the AVDUT during the test, the plurality of control signals that cause the abnormal event are sequentially recorded as a new test instruction, thereby the function of automatically expanding the test scripts is achieved.

Problems solved by technology

However, only the contents defined in the test scripts will be performed by testing equipment during the automation tests which may be very different from the actual operations performed by a real human.

Thus, although the automation tests may be benefited by the advantages of automation and fast testing speed, user's operations often cannot be simulated realistically in such tests, which cause many extreme abnormal operations cannot be simulated and tested in this way.

In contrast, when tests are performed manually, additional test steps other than those defined in the test scripts can be added and performed by a tester who may simulate the actual operations of a normal user, however, the testing operations are often non-repeatable when they are performed by a human.

In other words, it is difficult for the tester to repeat the steps of testing operations that he or she has added on multiple audio-video devices.

In addition, when an abnormality issue is detected in the additional testing steps added by the tester, the tester usually cannot reproduce exactly the same testing steps which cause the abnormality issue.

These drawbacks in the testing processes often dramatically slow the product development and debug department of audio-video device manufacturers down during the following processes of finding and solving the issues.

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