Positioning method and positioning system of optical cable connection tower
A technology of optical cable splicing and positioning methods, which is applied in transmission systems, electromagnetic wave transmission systems, electrical components, etc., and can solve problems such as low disposal efficiency
Active Publication Date: 2021-06-01
STATE GRID CORP OF CHINA +5
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The processing efficiency of this fault location method is low
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[0038] In the operation and maintenance of power communication network, there is often a big difference between the basic operation and maintenance data of the line and the actual physical location of operation. Difficulty, the main causes of this problem include:
[0039] 1. Due to factors such as the sag suspension of the OPGW optical cable, the excess length of the optical fiber, and the difficulty in determining the remaining length of the downconducting optical cable during construction, the actual length of the optical cable is much longer than the distance between the poles and towers. The span in the line tower information table is the distance between the towers, so when relying on the tower information table to locate the optical cable in operation, it is very different from the actual physical location.
[0040] 2. During the long-term operation of the OPGW optical cable, the basic information of the line is stored in the form of manual drawing records. After the li...
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The invention discloses a positioning method of an optical cable connection tower, which is realized based on a Brillouin optical time domain reflection technology, and comprises the following steps: firstly, obtaining a basic Brillouin frequency shift curve of a to-be-measured optical cable, and analyzing the obtained basic Brillouin frequency shift curve, to determine the connection tower welding point information of the to-be-detected optical cable; then, according to the information of the fusion point of the connection tower, determining the length of the optical cable between adjacent optical cable connection towers and the length of the optical cable between the fusion point of the connection tower and the test point; and finally, determining a tower information base of the line where the to-be-tested optical cable is located according to the determined optical cable length between the adjacent connection towers, the optical cable lengths of the welding points and the test points of the connecting towers and the basic operation and maintenance data of the line where the to-be-tested optical cable is located. Accurate positioning of the optical cable connection tower and accurate measurement of the length of the to-be-measured optical cable between the optical cable connection tower are realized, and a foundation is laid for efficiently and accurately determining the position of a fault point of the to-be-measured optical cable.
Description
technical field [0001] The present application relates to the technical field of electric power equipment, and more specifically, relates to a positioning method and a positioning system for optical cable splicing towers. Background technique [0002] In the operation and maintenance of the power communication network, it is one of the important links to determine the operation and maintenance information such as the location of the fault point of the optical cable. [0003] At present, the process of obtaining the fault point of the optical cable mainly includes: the operation and maintenance personnel determine the approximate location range of the faulty optical cable according to the distance between the test breakpoint and the test point and the basic data of the line. This approximate location range usually includes several Kilometers or even tens of kilometers, and then manually inspect the line on site, open the box and cut the fiber to test and other means to finall...
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IPC IPC(8): H04B10/077
CPCH04B10/0771
Inventor 李灿姜辉王颖高菲璠陈亮李扬张书林刘军董永康汤晓惠孟应平钟悠于浩马伟哲赵景宏李树辰
Owner STATE GRID CORP OF CHINA