Transmission line geological disaster monitoring system and method based on optical fiber strain analysis

A technology for geological disasters and transmission lines, which is applied in measurement devices, ICT adaptation, and fault detection according to conductor types, etc., can solve the problem of inability to judge whether the transmission line has an impact, etc., to reduce the difficulty of operation and maintenance, facilitate maintenance, and achieve stable signals. Effect

Inactive Publication Date: 2020-07-24
XIANNING POWER SUPPLY COMPANY OF STATE GRID HUBEIELECTRIC POWER +1
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Problems solved by technology

This method monitors the geological changes in the key areas of the transmission line, but it is impossible to judge whether it will affect the transmission line

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  • Transmission line geological disaster monitoring system and method based on optical fiber strain analysis

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] see figure 1 , a transmission line geological disaster monitoring system based on optical fiber strain analysis, including a stress optical cable sensor 1 connected by communication for collecting real-time data in the monitoring area, an OPGW optical cable 2 used to transmit signals and designed and installed with the overhead line of the transmission line, and Be located in the monitoring server 3 that is used for receiving and analyzing signal in the power transmission line machine room; Communication connection mode can adopt LoRa wireless communication connection; Described monitoring server 3 can be, but not limited to Web server, database server or ftp server etc.; Described stress The optical cable sensor 1 has an optical fiber strain analysis function, and includes a Brillouin optical time domain scattering monitoring device 1...

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Abstract

The invention relates to a transmission line geological disaster monitoring system based on optical fiber strain analysis. The system comprises a stress optical cable sensor used for collecting real-time data in a monitoring area, an OPGW optical cable used for transmitting signals and installed in same design as overhead lines of power transmission lines, and a monitoring server located in a power transmission line machine room and used for receiving and analyzing signals, wherein the stress optical cable sensor, the OPGW optical cable sensor and the monitoring server are in communication connection with each other; the stress optical cable sensor has an optical fiber strain analysis function and comprises Brillouin optical time domain scattering monitoring equipment and a stress opticalcable serving as a sensing unit, wherein the Brillouin optical time domain scattering monitoring equipment and the stress optical cable are in communication connection with each other; and the Brillouin optical time domain scattering monitoring equipment can collect three-dimensional light scattering monitoring parameters of geological states in the monitoring area, and a relationship model and ageological disaster analysis model corresponding to geological disaster risk characteristic monitoring parameters and the light scattering monitoring parameters are pre-stored in the monitoring server.

Description

technical field [0001] The invention belongs to the technical field of intelligent operation and inspection of power systems, and in particular relates to a method and system for monitoring geological disasters of transmission lines based on optical fiber strain analysis. Background technique [0002] Transmission lines are an important part of the power system. Due to the development of cities, the available space for transmission line construction is gradually restricted. It is impossible to completely avoid the harsh geological environment factors in the construction site, leaving certain hidden dangers, especially It is a geological disaster-prone area with special geographical conditions and fragile geological environment. Landslides, collapses, debris flows, ground subsidence, ground fissures and other geological disasters may occur at the construction site of the transmission line. The occurrence of geological disaster risks on transmission lines will lead to damage, ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/10G01R31/08G01W1/02G01W1/14
CPCG08B21/10G01R31/086G01W1/02G01W1/14Y02A90/10
Inventor 黄江林徐志坚潘占军占旭峰刘凡
Owner XIANNING POWER SUPPLY COMPANY OF STATE GRID HUBEIELECTRIC POWER
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