GIS-based positioning method for optical cable fault points

A locating method and fault point technology, applied in structured data retrieval, transmission systems, electromagnetic wave transmission systems, etc., can solve the problems of noise, inconvenience, and low maintenance efficiency in test data.

Inactive Publication Date: 2017-01-11
XINZHOU POWER SUPPLY COMPANY STATE GRID SHANXI ELECTRIC POWER
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Problems solved by technology

[0002] At present, the following problems exist in the fault location of optical cables: (1) OTDR is widely used to test optical cables and obtain the optical power attenuation curves of multiple optical fibers, and then use a computer to perform signal processing and analysis on a large amount of test data. There are such problems in this way: OTDR The obtained test data is mixed with a lot of noise, which increases the difficulty of processing the test data, which directly leads to inaccurate calculation of the fault location in the optical cable
(2) The data obtained from optical cable monitoring of the test data are

Method used

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Embodiment Construction

[0011] The GIS-based optical cable fault location method comprises the following steps:

[0012] (1) Install fault locators at intervals in the optical cable line, and mark the geographical location of the fault locator, the tower joint box and the optical path of the tower;

[0013] (2) Add optical cable lines, fault locators, tower splice boxes and tower data to the GIS map of the power grid, and the GIS map visually displays the direction of the optical cable lines and the actual geographic location of the fault locator, tower splice boxes, and towers, so as to accurately locate cable faults occurrence point;

[0014] (3) When the optical cable is disconnected, the attenuation of the optical signal will increase sharply at the disconnection. Use OTDR (Optical Time Domain Reflectometer) to accurately obtain the optical path distance from the optical cable disconnection point to the equipment room through the attenuation of the photometric signal;

[0015] (4) According to t...

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Abstract

The invention belongs to the field of cable fault online monitoring and particularly relates to a GIS-based positioning method for optical cable fault points. The method includes: fault positioners are mounted on an optical cable line at intervals, and marking the optical path geographic positions of the fault positioners; visually displaying the route of the optical cable line and the actual geographic positions of the fault positioners, tower connector boxes and towers on a GIS map; using the attenuation of an OTDR photometry signal to accurately obtain the light path distance between an optical cable disconnection point and a machine room; positioning the optical cable disconnection point between two adjacent fault positioners marked by optical path geographic positions; positioning the fault positioners positioning the optical cable disconnection point to actual geographical positions on the GIS map. By the GIS-based positioning method, the optical cable disconnection point can be positioned between the adjacent fault positioners marked by the actual geographic positions, and maintenance staff can maintain the optical cable disconnection point according to the positioned actual geographic positions.

Description

technical field [0001] The invention belongs to the field of on-line monitoring of optical cable faults, and in particular relates to the research on precise positioning and display analysis of the actual position of optical cable fault points, in particular a GIS-based optical cable fault point positioning method. Background technique [0002] At present, the following problems exist in the fault location of optical cables: (1) OTDR is widely used to test optical cables and obtain the optical power attenuation curves of multiple optical fibers, and then use a computer to perform signal processing and analysis on a large amount of test data. There are such problems in this way: OTDR The obtained test data is mixed with a lot of noise, which increases the difficulty of processing the test data, which directly leads to inaccurate calculation of the fault location in the optical cable. (2) The data obtained from optical cable monitoring of the test data are all in text format. ...

Claims

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Application Information

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IPC IPC(8): H04B10/079H04B10/071G06F17/30
CPCH04B10/0791G06F16/29H04B10/071
Inventor 张海峰刘月琴胡伟
Owner XINZHOU POWER SUPPLY COMPANY STATE GRID SHANXI ELECTRIC POWER
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