An Online Inspection System for Transmission Lines

Abstract

The invention discloses an on-line touring system of a power transmission line. The on-line system comprises an optical fiber communication subsystem, a backstage monitoring host subsystem and tower terminal subsystems which are arranged on towers one by one. Each tower terminal subsystem comprises a measuring unit, a terminal host, an energy supply unit and an optical network unit. The measuring units are used for collecting monitoring data in a power transmission circuit. The terminal hosts are used for finishing converging, pretreating and uploading of the monitoring data and receiving an order sent by the backstage monitoring host subsystem to control all the units. The energy supply units are used for providing energy for the measuring units and optical network unit devices through relay exits of the terminal hosts. The monitoring data collected by the tower terminal subsystems of all the towers are connected with the optical units through the optical network units, wherein the optical units are continuously led downwards from all the towers, and the monitoring data are connected into the optical fiber communication subsystem. The backstage monitoring host subsystem has the functions of storing the monitoring data, analyzing, inquiring, alarming and the like and is communicated with all the tower terminal subsystems through the optical fiber communication system.

Description

technical field [0001] The invention belongs to the field of electric power technology, and more specifically relates to an online inspection system for power transmission lines. Background technique [0002] With the development of the power system, the total length of high-voltage transmission lines in my country is increasing continuously, and the coverage is expanding. In order to ensure the safety of transmission lines and their equipment, the daily inspection of power system transmission lines is an important link. However, the manual inspection of high-voltage transmission lines has a large workload and high inspection cost, and the difficulty of manual inspection will be greatly increased in complex geographical environments and harsh weather conditions; although helicopter inspections can improve the efficiency of inspections, they have a significant impact on climate conditions and geographical environments. The requirements are strict and there are flight safety h...

AI Technical Summary

Problems solved by technology

However, these status monitoring systems are limited by specific monitoring targets and monitoring methods are limited, so it is difficult to fully and accurately reflect the line operation status, cannot meet the requirements of line inspection, and it is difficult to expand functions; on the other hand, these monitoring systems are limited by GPRS or CDMA Information and communication technology has shortcomings such as small transmission data capacity, poor security and reliability, and cannot meet the real-time monitoring requirements of the state quantities required for line inspections.

Since these line status monitoring systems are out of touch with tasks such as daily inspections of transmission lines, the utilization rate is not high and the economic benefits are low

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