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Method for testing locomotive general-purpose circuit board function

A general-purpose circuit and functional testing technology, applied in the direction of electronic circuit testing, etc., can solve problems such as modification, program development and maintenance difficulties, and achieve the effects of lowering the threshold, ensuring reliability, and improving programming efficiency

Inactive Publication Date: 2008-10-08
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

This brings many difficulties to the development and maintenance of the entire program.
It is likely that when a certain model of instrument has to be replaced for some reason, the software program of the entire test bench needs to be greatly changed

Method used

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  • Method for testing locomotive general-purpose circuit board function

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Embodiment Construction

[0014] The block diagram of the whole test system is as follows: figure 1 As shown: the whole test system adopts the control mode of GPIB+PXI mixed bus, and the system includes industrial computer 1, measuring desktop instrument 2-11, PXI system 12-14 and adapter interface system 18-25. The industrial computer controls all test desktop instruments through the GPIB bus, including oscilloscope 2, multimeter 3, first signal power supply 4, second signal power supply 5, third signal power supply 6, fourth signal power supply 7, and first signal generator 8 , the second signal generator 9 , the fifth signal power source 10 , and the power supply power source 11 . The industrial computer controls all the boards in the PXI chassis through the PXI bus, including the matrix switch card 12, the digital input and output card 13 and the general switch card 14.

[0015] The oscilloscope 2 collects the waveform of the circuit board under test under the control of the industrial computer 1;...

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Abstract

The invention relates to a locomotive general-purpose circuit board function test method, which aims at the multiple electric pluggable unit kinds and complicated debug method debug method features of the locomotive. In the test process, all apparatuses in the test system are divided into different kinds of objects, each kind of objects have their property and method, different methods of all objects of the test system are combined into a plurality of states, executing combined ordering to the a plurality of states, and mounting property of different objects, and preserving all these information, and then invoking the preserved information when the check program runs. The invention adopts a method which combines using the measurement desk type apparatus to execute authoritative metering and using the corresponding matrix switch and general-purpose switch to execute self checking, provides a locomotive general-purpose circuit board automatization test method with favorable human-machine interaction interface, high precision testing and intellectualized locomotive.

Description

technical field [0001] The invention relates to a method for testing the function of a universal circuit board (electronic plug-in) of a locomotive. Aiming at the characteristics of the electronic plug-in of a locomotive, that is, there are many types of circuit boards and complex debugging methods, a method with a good human-computer interaction interface, high-precision detection and intelligent testing is provided. A functional test method for general circuit boards of locomotives. Background technique [0002] At present, there are many types of circuit board products for locomotive products, the output of single products is small, the test methods are complicated, and the test accuracy requirements are high. Traditional test benches use manual or semi-automatic test methods to test circuit boards, which results in relatively high test speed. It is slow and the test efficiency is not high. In mass production, it cannot meet the high-speed and low-cost requirements, and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/28
Inventor 易卫华罗文涛陈志漫李涛葛全水
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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