Single-end measurement method and system for connection and disconnection of on-board cable

A measurement method and cable technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of inability to test conduction resistance and incomplete test items, and achieve the effect of simplifying the preparation work

Inactive Publication Date: 2019-03-05
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0009] e) The test items are not comprehensive, only the on-off test can be performed, and the failures such as on-resistance, insulation resistance, withstand voltage and needle shrinkage cannot be tested

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  • Single-end measurement method and system for connection and disconnection of on-board cable
  • Single-end measurement method and system for connection and disconnection of on-board cable
  • Single-end measurement method and system for connection and disconnection of on-board cable

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Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0042] first reference figure 1 and figure 2 , respectively show the on-board cable on-off single-ended measurement method provided according to an embodiment of the present invention, including the following steps:

[0043] Steps to establish communication connection: select one of the wires in the on-board cable as the 1-WIRE communication line through the host and the intelligent short-circuit module, and establish communication. In this step, the host, the intelligent short-circuit module and the on-board cable A communication link is established between one wire, which is ready...

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Abstract

The invention discloses a single-end measurement method for the connection and disconnection of an on-board cable, which comprises a communication connection establishment step which is used for selecting one wire in the on-board cable through a host and an intelligent short-connection module to serve as a 1-WIRE communication wire so as to establish communication connection, a measurement circuitestablishment step which is used for enabling the short-connection module to receive a communication command sent by the host through the 1-WIRE communication wire, controlling an analog switch, andenabling a corresponding wire in the cable to be connected to a grounding pile so as to establish a measurement circuit; and a single-end measurement step which is used for enabling the host to realize single-end measurement for the cable through the measurement circuit. The single-end measurement method has the advantages of small size, strong adaptability, abundant test information, flexible testing, high speed, accuracy and the like, and can meet all test requirements for the cable before the final assembly and during the aircraft maintenance.

Description

technical field [0001] The invention relates to the field of cable fault testing, in particular to an on-board cable on-off single-end testing method. Background technique [0002] Cable faults will occur when the cable is put into use, and at the same time, fault detection methods have emerged as the times require. In recent years, cable fault diagnosis technology has become one of the focuses of electrical workers' research. [0003] The aviation cable is the nervous system of the aircraft, which transmits power supply, transmits control signals and data information to the aircraft's electrical, avionics, communication, control and other systems. Aviation cable faults are common faults in aircraft electronic and electrical systems, and one of the main causes of flight accidents. The detection and location of aviation cable faults directly affect the safety of aircraft. In aircraft maintenance, accurate detection of aviation cable faults is of great significance to ensure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02G01R31/00
CPCG01R31/008G01R31/50
Inventor 石宝松聂磊付柯楠闫春影
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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