Virtual instrument-based multiplexing automatic testing platform and testing method

Abstract

The invention provides a multiplexing automatic testing platform and a testing method. The automatic testing platform comprises a main controller and a testing unit; the testing unit receives a control signal of the main controller to generate an exciting signal; the testing unit comprises at least one testing function module, and a signal channel is connected with the testing function module through a matrix switch, so that each signal channel can perform signal communication with each testing function module; and the main controller comprises a testing function signal generation module, a test signal transmitted by the testing function signal generation module corresponds to a testing function of the testing function module, and a testing function signal sent by the testing function signal generation module is transmitted to the corresponding testing unit, so that testing of different functions can be realized. The testing platform provided by the invention is a testing platform which can be multiplexed by various types of instruments; the testing platform comprises the multiple testing channels with different testing functions; and the testing channels can be multiplexed, and each testing channel can access the main controller or equipment needing to be tested according to the actual requirement.

Description

technical field [0001] The invention relates to the technical field of testing devices, and relates to a test bench for testing controllers and communication instruments, in particular to an automatic test bench and a testing method that can be multiplexed by multiple measured objects. Background technique [0002] Controllers and communication instruments need to be tested before use to ensure that they can work normally. Take rail transit technology as an example. In the rail transit traction system, all kinds of controllers (traction control unit (TCU), auxiliary control unit (ACU), general control unit (LCU)), compact expansion I / O and fiber optic converters that have been produced and assembled need to be completed After all the functional tests meet the standards, it can be loaded and used. [0003] In the prior art, manufactured controllers are mainly tested manually. This method has the following deficiencies, first: manual testing is inefficient, long cycle, high...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the instrument testing method and testing device in the prior art, and provide a general-purpose test bench and testing method for automatic testing of various controllers and communication instruments, so as to improve testing efficiency , shorten the test cycle and reduce the test cost

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