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Method and apparatus for testing circuit board

A technology for testing devices and circuit boards, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc. It can solve problems such as inability to test motherboards, low test efficiency, and inability to fully test motherboard wiring and connections. Comprehensive, the effect of improving test efficiency

Active Publication Date: 2011-07-20
ZHEJIANG SUPCON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: the single board used based on the motherboard has its own requirements, and not all the wiring and connections on the motherboard can be used, only a part of them can be used. Therefore, use the single board to test its corresponding motherboard. board does not serve the purpose of comprehensively testing all traces and connections on the motherboard
[0007] To sum up, the motherboard testing method in the prior art cannot automatically and comprehensively test the motherboard, and the testing efficiency is low

Method used

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  • Method and apparatus for testing circuit board
  • Method and apparatus for testing circuit board
  • Method and apparatus for testing circuit board

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Embodiment Construction

[0060] The basic idea of ​​the present invention is: the microprocessor unit controls the signal source unit to input the test signal to the corresponding wiring in the circuit board; the data grouping unit uses the corresponding test method according to the type of the wiring to output the signal to the wiring to be tested The test is carried out, and the signal obtained after the test is sent to the microprocessor unit for analysis and processing, and the state information of the required test wiring is obtained.

[0061] Hereinafter, the implementation of the circuit board testing method and device of the present invention will be described in detail through specific embodiments in conjunction with the accompanying drawings.

[0062] figure 1 It is a structural schematic diagram of the circuit board testing device of the present invention, such as figure 1 As shown, the device includes: a microprocessor unit 110, a signal source unit 120, a test console 130, a data groupin...

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Abstract

The invention discloses a circuit board testing device which comprises a microprocessor unit, a signal source unit, a testing operation platform and a data grouping unit. The microprocessor unit controls the signal source unit to input testing signals to the corresponding cable fixed in the circuit board of the testing operation platform; the data grouping unit tests the signal output by the cable needing testing according to the type of the cable and sends a signal obtained after the testing to the microprocessor unit for analysis processing, thus obtaining the state information of the cableneeding testing. The invention discloses a circuit board testing method at the same time. The device and the method can automatically test the circuit board in an all-around way, with high testing efficiency.

Description

technical field [0001] The invention relates to circuit board testing technology, in particular to a circuit board testing method and device. Background technique [0002] In a Distributed Control System (DCS, Distributed Control System) or Programmable Logic Controller (PLC, Programmable Logic Controller) system, when a cage single-board slot or a rack-mounted design is used, a motherboard is required. The motherboard is the basis for connecting single boards or modules. The reliability of welding and board making of the mother board determines the stability and reliability of the system operation. Based on the important role and special status of the motherboard in the design, it becomes very critical and important to conduct a comprehensive and effective test on it. [0003] The characteristics of the motherboard are: large area, dense wiring, large number of connectors, and rich wiring types. Among them, in terms of connectors, including 64-pin Euro plug, DB25, DB9, 2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/02
Inventor 徐建龙郑伟建夏晓麟
Owner ZHEJIANG SUPCON TECH