Rapid fault detection method and detection system

A detection method and detection system technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., to achieve the effects of simplifying debugging difficulty, reducing time, and reducing working hours

Active Publication Date: 2017-11-24
XIAN NORTH ELECTRO OPTIC TECH DEFENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem of wear and tear caused by multiple butt joints of the connecting wire harness and the problem of accurate fault detection in the existing fault detection method, the purpose of the present invention is to provide a fast fault detection method and detection system; Fault detection of components can be carried out, especially under high and low temperature conditions to determine faulty components, which eliminates repeated tests and multiple docking work to determine faults in the prior art, improves troubleshooting efficiency, and reduces the number of connections caused by repeated docking and connection. The hidden damage caused by the wiring harness improves the reliability of the product

Method used

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Experimental program
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Effect test

Embodiment 1

[0023] Such as figure 1 As shown, the fault rapid detection method provided by the embodiment of the present invention is used to quickly detect the fault of the product to be tested. 2 is provided with an X1 connection terminal board 4 for welding the connecting wire harness 3; including the following steps, placing the auxiliary device for generating the reference signal on the test bench; fixing the signal ground wire of the auxiliary device on the product to be tested; The auxiliary device is provided with a signal output probe, the signal output probe is contacted with the X1 terminal block 4, and the signal acquisition system 5 is used to collect the static image of the product to be tested; if the static image is normal, it indicates that the fault location is in the position marker 2; If the fault persists, it is in electronic compartment 1.

[0024] Wherein, the signal acquisition system 5 is an existing signal acquisition system 5 and will not be described in detail...

Embodiment 2

[0028] On the basis of Example 1, such as figure 2 As shown, the X1 wiring terminal board 4 is provided with inner A, B, C, D area signal terminals and outer A, B, C, D area signal terminals for inputting signals to the electronic cabin 1; A, B, C, D area signal terminals and outer A, B, C, D area signal terminals connection harness 3; connect the signal output probe of the auxiliary device to the inner A, B, C, D area signal terminals and the outer A, B, C, D area signal terminals in sequence. Signal terminals in areas B, C, and D, and use the signal acquisition system 5 to collect the static image of the product to be tested; if the static image is normal, it means that the fault location is in the position marker 2; if the fault persists, it is in the electronic cabin 1.

[0029] By setting the signal terminals in the inner A, B, C, and D areas and the outer A, B, C, and D area signal terminals on the X1 terminal board 4, it is convenient to connect the wire harness 3 for ...

Embodiment 3

[0033] On the basis of Example 1, such as figure 2 As shown, when the product to be tested uses a light source to perform a static drawing test, the product to be tested has no output failure in the outer D area, and the output reference signal output by the auxiliary device is input at the signal terminal of the outer D area through the auxiliary device. (also claiming analog signal), use signal acquisition system 5 to gather outer D area output signal simultaneously, find that outer D area output signal is normal, can determine that the fault position that outer D area does not have output is in position mark device 2 this moment.

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Abstract

The invention discloses a rapid fault detection method and detection system, so that a fault of a to-be-detected product is detected rapidly. The to-be-detected product is formed by connection of an electronic cabin and a position marker by a connection wiring harness; and the position marker is provided with an X1 wiring terminal plate for welding of the connection wiring harness. The detection method comprises: an auxiliary device for generating a reference signal is placed on a test stand; a signal ground wire of the auxiliary device is fixed on a to-be-tested product; the auxiliary device is provided with a signal output probe, the signal output probe is in contact with the X1 wiring terminal plate, and a signal acquisition system collects a static map of the to-be-tested product; if the static map is normal, a fault is located at the position marker; and if the fault still exists, the fault is located at the electronic cabin. With the method disclosed by the invention, the trouble elimination efficiency is improved; and the hidden damage on the connection wiring harness caused by repeated docking is reduced, so that the product reliability is improved.

Description

technical field [0001] The invention relates to fault detection of automatic control products, in particular to a fast fault detection method and detection system applied to automatic control products. Background technique [0002] With the rapid development of electronic technology, the technical content of products containing automatic control technology (such as solar automatic tracking products, flight automatic control products, etc.) How to meet the ever-increasing product technical requirements and promote the improvement of production efficiency through the improvement of production, maintenance and troubleshooting technology has become an urgent research problem. [0003] The existing fault detection method is to split the automatic control product into components and test them separately, and then conduct a joint test after the detection. If it is not good, then split and test until the fault is eliminated. Increased wear and tear on the connecting wire harness re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00Y04S10/52
Inventor 林琦高胜银李东奇杨涛
Owner XIAN NORTH ELECTRO OPTIC TECH DEFENSE
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