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Train cable testing method and device

A test method and cable technology, applied in the fault location, detection of faults by conductor type, etc., can solve the problems of poor test accuracy and limited cable test length.

Active Publication Date: 2020-12-04
CRRC TANGSHAN CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] However, due to the attenuation phenomenon during the transmission of the pulse wave in the cable, the attenuation is more serious when the cable length is larger. Therefore, when using the above test method to test a longer cable, the accuracy of the test Poor, resulting in limited test lengths for cables

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  • Train cable testing method and device
  • Train cable testing method and device
  • Train cable testing method and device

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Embodiment Construction

[0020] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0021] In related technologies, when diagnosing train cables, the pulse reflection test method is usually used. Specifically, the transmitting end of the cable testing equipment transmits a pulse wave to the cable to be tested. It will be reflected to the transmitting end, and the cable testing equipment can measure the round-trip time of the pulse wave through high-speed A / D, so that the distance of the obstacle p...

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Abstract

An embodiment of the invention provides a train cable testing method and device, and relates to the control technology of rail trains. The train cable testing method comprises the steps of: when determining that a current test mode is a dual-computer test mode, acquiring test data of diagnostic equipment arranged on two head trains of a train respectively, wherein diagnostic equipment arranged atone train head of the train passively responds to diagnostic equipment arranged at the other train head of the train; and processing the obtained test data to obtain test information of cables connecting two head vehicles of the train.

Description

technical field [0001] The present application relates to the control technology of rail trains, in particular to a test method and device for train cables. Background technique [0002] In the control system of rail trains, the quality of cables used to connect relevant components in the control system directly affects the quality of signal transmission. Therefore, reliable diagnosis of the connectivity performance on the train cable plays a very important role in improving the efficiency of train commissioning and ensuring the safe operation of the train. [0003] In related technologies, when diagnosing train cables, the pulse reflection test method is usually used. Specifically, the transmitting end of the cable testing equipment transmits a pulse wave to the cable to be tested. It will be reflected to the transmitting end, and the cable testing equipment can measure the round-trip time of the pulse wave through high-speed A / D, so that the distance of the obstacle point...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
CPCG01R31/083
Inventor 付稳超邢月华付磊高永亮杜飞王海芳薛莲敏
Owner CRRC TANGSHAN CO LTD
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