Automatic test system for onboard cable integrity

An automatic testing system and integrity technology, applied in the direction of testing dielectric strength, measuring electricity, measuring devices, etc., can solve the problems of high false detection and missed detection rate, large human error, low testing efficiency, etc., to achieve simple operation, The effect of shortening the length

Active Publication Date: 2015-01-21
COMAC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome many problems such as long test period, large human error, low test efficiency, high error detection and missed detection rate in the whole machine cable testing process, so as to efficiently test the integrity of the whole machine cable

Method used

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  • Automatic test system for onboard cable integrity
  • Automatic test system for onboard cable integrity
  • Automatic test system for onboard cable integrity

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] Such as Figure 1a , Figure 1b The schematic diagram of the on-board cable integrity automatic test system shown is composed of a test host, test terminals, transfer cables, and cable equipment to be tested. The system adopts a distributed measurement scheme, which can automatically identify the location of the transfer cable and automatically give the test address. The test terminal can be arranged in the parts of the aircraft that need to be tested according to the test requirements, such as the front fuselage, wing and engine, so as to shorten the length of the transfer cable, reduce the cost of the transfer cable, and improve the test efficiency.

[0031] The on-board cable integrity automatic test system uses CAN bus technology to build a distributed communication and control network between the test host and the test terminal to achieve the cha...

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Abstract

The invention discloses an automatic test system for onboard cable integrity. The automatic test system comprises a test host and multiple test terminals, wherein the test host and the test terminals are connected through a CAN bus network, and the test terminals are distributed at the portions needing to be tested of an airplane. Each test terminal comprises a CAN bus input interface, a CAN bus node processor, a cable test extension box, a switch board, an analog bus and a digital bus. The test host gives out a control command, after the test terminals receive the command through the CAN, relays on the switch boards are controlled to be switched on, thus, a test loop of a cable is formed, and a function test is finished. Through the technology of CAN application, database drive and the like, the automatic test system has the advantages of being high in test speed and accuracy, capable of reducing the length of the switching cable and the like.

Description

technical field [0001] The invention relates to an automatic test technology for cable integrity on an aircraft, in particular to distributed intelligent test equipment for characteristics such as conduction, insulation and voltage resistance of the entire aircraft cable. Background technique [0002] In-flight cable integrity testing is an extremely important task during aircraft final assembly. Aircraft cables are criss-crossed, very large and complicated, with thousands of wires and tens of thousands of joint detection points. safety hazard. Modern civil airliners have tens of thousands of test points when conducting on-board cable integrity testing. Traditional manual testing of the entire aircraft cable takes at least 40 days. However, with fully automatic cable testing technology, an aircraft only needs 2 to 3 time of day. [0003] Countries with developed aviation industry and advanced technology in the world have relatively mature technology in cable testing. Prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02G01R31/12
Inventor 翁远卓蔡云芳范玲黄利宾刘柳梅小路韩建宾黄建民李小梅王元庆宋志超
Owner COMAC
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