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Method for accurate fault location of multi-type cable connection system

A cable connection and fault location technology, which is applied in the direction of detecting faults, fault locations, and measuring electricity by conductor type. Effect

Active Publication Date: 2019-02-01
TRANSCOM INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual cable system, there may be many types of cables, and the parameters of each cable are different. If the traditional location method is used for fault location, since the antenna and feeder analyzer cannot distribute the scanning test data according to different cables , can only be processed according to one type of cable, and the location of the fault point obtained in this way will be inaccurate. For example, maintenance personnel locate the fault of the leaky cable in the high-speed rail tunnel. If the leaky cable system is composed of multiple types of cables, then There is a large deviation in the location of the fault point using the traditional method of locating the antenna and feeder analyzer

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  • Method for accurate fault location of multi-type cable connection system
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  • Method for accurate fault location of multi-type cable connection system

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Embodiment Construction

[0044] 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 embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0046] It should also be noted that the orientation terms such as left, right, up, and down in the embodiments of the present invention are only relative concepts or refer to the normal use state of the product, and should ...

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Abstract

The invention discloses a method for accurate fault location of a multi-type cable connection system. Firstly, measurement parameters are normalized. Then the data is grouped and compensation corrections are made. The maximum value of the data is found and whether a cable is faulty is determined by comparison. Through the hybrid data automatic analysis algorithm in the present invention, in the case of multiple cables, the data obtained from one measurement can be used to accurately identify which cable the data of each scanning point belongs to. After the data distribution is completed, eachgroup of data is corrected by using the cable parameters corresponding to the data of the group. Thereby accurate fault location and DTF Return Loss results are obtained. Through this new fault location algorithm, the cable position measurement accuracy is greatly improved.

Description

technical field [0001] The invention relates to the field of cable fault location, in particular to a method for precise fault location of multi-type cable connection systems. Background technique [0002] Cable fault location technology is widely used. For example, a cable used for communication may be composed of one cable, or may be composed of multiple cables connected through connectors, etc. During use, connectors may become loose and cables may be damaged. This will lead to a decrease in the performance index of the entire communication cable. In this case, it is necessary to use a cable fault location technology for fault location. [0003] The traditional method for cable fault location mainly uses an antenna-feeder analyzer, select the measurement format of the antenna-feeder analyzer as DTF_SWR, set the relative speed of the cable, the loss value of the cable, the measurement distance and the number of measurement points, according to the test results of the ante...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
CPCG01R31/083G01R31/088
Inventor 杜建于磊
Owner TRANSCOM INSTR
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