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A method and device for on-line detection of track circuit cable faults

A technology for track circuit and cable faults, applied in the field of rail transit, to achieve the effect of accurate fault location

Active Publication Date: 2020-11-17
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problem that in the prior art, the on-line detection and accurate fault location of the cables used by ZPW-2000A cannot be realized, the present invention proposes a method and device for on-line fault detection of track circuit cables

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  • A method and device for on-line detection of track circuit cable faults
  • A method and device for on-line detection of track circuit cable faults
  • A method and device for on-line detection of track circuit cable faults

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] Such as figure 1 The schematic diagram of the cable fault on-line detection system of the embodiment of the present invention shown, as shown in the figure, the cable fault detection device is connected with the branch line collector through the CAN (ControllerAreaNetwork, control local area network) bus, and realizes the cable side track of the branch...

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Abstract

The invention relates to a track circuit cable fault online detection method and device, wherein the method comprises the following steps: acquiring the electrical parameter of a self-signal of a track circuit from one or two of first equipment and second equipment; calculating to obtain a fault measurement value according to the acquired electrical parameter; and comparing the fault measurement value with corresponding reference values on different positions of a cable to determine the position of a fault point. Through the technical scheme of the track circuit cable fault online detection method and device, the method is effectively adapted to the online detection of the fault, and the technical effect of more accurately positioning the fault is achieved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to an on-line detection method and device for cable faults in rail circuits. Background technique [0002] ZPW-2000A is the main basic equipment of the train control system, and has been widely used in ordinary railway and high-speed railway systems. One of the characteristics of its track circuit is that the system has a long extension, up to 15km from indoor to outdoor, and indoor and outdoor equipment are connected by cables. This kind of cable transmits audio signals in the frequency range of 1700-2600Hz, and there are distributed capacitances between the cable core wires and between the core wires and the ground. [0003] In daily use, once an open circuit or short circuit fault occurs in the cable, due to the complex electrical characteristics, it is difficult for on-site maintenance personnel to accurately determine the location of the fault. Therefore, even if the fau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08
CPCG01R31/083
Inventor 杨轶轩殷惠媛李智宇王智新阳晋程帮锋杨晓锋洪福庆唐伟张新斌张庆李涛谢文磊白英杰刘瑞韩聪颖李继隆
Owner CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD