Error prevention system and method for test systems

Abstract

The invention relates to an error prevention system for test systems. The error prevention system consists of an industrial control computer [1], a resistor test module [2], an online resistor [3], atest switching cable [4], resistor test software [5] and a tested piece shorting stub [6]. The invention furthermore relates to an error prevention method for test systems. The system and method provided by the invention are easy to realize, are capable of ensuring the correct selection of cables and software, effectively decreasing the errors in the test process and avoiding test equipment and tested products from being damaged, is low in cost, and can be popularized and applied to a majority of automatic test systems.

Description

technical field [0001] The invention belongs to the technical field of test and measurement, and relates to a test software, a test cable and a matching test method of a tested product in a general-purpose automatic test system. Background technique [0002] During the general design and use of test equipment, in the process of simultaneous testing of different DUTs, it often occurs that the product under test does not match with the test cable, test equipment, and test software. If the interface of the test cable is the same, but the definition of the core wire is different, it is easy for the tester to choose the wrong test cable; when the test cable is connected to the DUT correctly, it may happen that the matching test software of other products is started. For such potential safety hazards, the existing error prevention measures for test equipment mainly include the following methods: [0003] 1) Relying on manual judgment, this method has great potential safety hazard...

AI Technical Summary

Problems solved by technology

[0003] 1) Relying on manual judgment, this method has great potential safety hazards, and the influence of human factors is relatively large, so it cannot be used as the main measure to prevent errors

When there are test cables with the same shape and size in the automatic test system with general functions, relying solely on the identification and marks on the cables cannot prevent the user from connecting the wrong cable or starting the unmatched test software during the test. If the error cannot be found in time during the test, it may have serious consequences, resulting in mutual damage to the test equipment and the product, and even endangering personal safety

[0004] 2) Hardware identification method: set one or two product models to identify the core wires in a specific test cable connector, and connect to a dedicated circuit and signal indication, but this method can identify product model types and quantities are limited. When in place, the product model may not be recognized and the reliability is low

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