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Branch cable fault detection system and method based on spread spectrum time domain reflection

A branch cable and fault detection technology, which is applied to the fault location, detects faults according to conductor types, and measures electricity. The effect of precision fault location

Pending Publication Date: 2022-06-28
广州赛力迪科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When a cable fault occurs, due to the inaccurate location of the cable fault due to the topology structure, the traditional cable fault detection method for a single cable cannot be used to detect the fault of a railway cable

Method used

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  • Branch cable fault detection system and method based on spread spectrum time domain reflection
  • Branch cable fault detection system and method based on spread spectrum time domain reflection
  • Branch cable fault detection system and method based on spread spectrum time domain reflection

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0048] This embodiment describes the composition of a branch cable fault detection system based on spread spectrum time domain reflection, such as figure 1 As shown, it mainly includes SSTDR module, bidirectional directional coupler module, initial cable database establishment module and data comparison module.

[0049] The SSTDR (Spread Spectrum Time-Domain Reflectometry, Spread Spectrum Time Domain Reflectometry) module mainly includes a sequence generation sub-module, a signal modulation sub-module, an adaptive noise cancellation sub-module and a signal processing s...

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Abstract

The invention discloses a branch cable fault detection system and method based on spread spectrum time domain reflection. The system comprises an SSTDR module, a bidirectional directional coupler module, an initial cable database establishment module and a data comparison module. The system further comprises a waveform control module and a big data analysis module. According to the time domain reflection technology of the spread spectrum, analysis and mining of big data are combined, the topological structure of the bifurcated cable can be identified, and the condition of each branch of the cable can be monitored in real time. When a fault occurs in the railway cable, the fault can be quickly positioned with high precision, and the accident of the cable fault in the railway operation can be effectively avoided. The method is widely applied to places where a large number of topological structure cables are arranged, such as railway stations.

Description

technical field [0001] The invention relates to the field of time domain reflection, in particular to a branch cable fault detection system and method based on spread spectrum time domain reflection. Background technique [0002] Cables are mainly used to transmit electricity. With the improvement of information construction, the demand for electricity is also rising. [0003] Cables are generally laid underground, so when a cable fails, it cannot be directly observed. Instead, a special cable fault detection method is required to detect where the fault location is in the cable. [0004] In railway systems, cables are usually laid out in topology, that is, a cable has multiple branches, and the ends are connected to multiple terminals. When a cable fault occurs, the fault location of the cable cannot be detected by the traditional cable fault detection method for a single cable because the topology structure will lead to inaccurate location of the cable fault. SUMMARY OF ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08G01R31/52G01R31/54
CPCG01R31/083G01R31/088G01R31/52G01R31/54
Inventor 薛瑞民张学诚张恩泉梅建军裴世雄
Owner 广州赛力迪科技有限公司