Laser radar-based intelligent early-warning evaluation method and system for power transmission line

Abstract

The invention provides a laser radar-based intelligent early-warning evaluation method for a power transmission line. The method comprises the following steps: information obtaining of the power transmission line, three-dimensional graphic modeling of the power transmission line, data analysis and judgment, and early-warning and power transmission line security evaluation. High-density and high-precision laser radar point cloud and optical image data on an ultra-high-voltage or high-voltage power transmission line are obtained by a laser radar scanning system carried by a helicopter platform; rapid high-precision three-dimensional measurement and spatial analysis of the power transmission line are achieved; and the analysis is applied to specific inspection and management work, such as sag calculation, line windage yaw check after three-dimensional modeling and line hazard analysis, in power transmission line operation and maintenance. The invention further provides a laser radar-based intelligent early-warning evaluation system for the power transmission line. The system comprises a power transmission line information obtaining unit, a data processing unit, a data storage unit and a feedback unit. According to the system, inspection and early-warning of the power transmission line can be rapidly and accurately achieved; and a safety evaluation report can also be provided to a user.

Description

technical field [0001] The invention relates to the field of operation and maintenance of transmission lines in electric power systems, in particular to a laser radar-based intelligent early warning and evaluation method and system for transmission lines. Background technique [0002] The current transportation inspection management mode of transmission lines is a conventional manual operation method, which not only has high labor intensity and difficult working conditions, but also has low labor efficiency, especially in the inspection of transmission lines in mountainous areas and across large rivers, as well as in ice disasters, Floods, earthquakes, landslides, power grid emergency failures and abnormal weather conditions during nights, line maintenance personnel have to rely on ground transportation or walking on foot, use ordinary instruments or the naked eye to inspect the line and deal with equipment defects, which takes a long time and manpower High cost and high ris...

AI Technical Summary

Problems solved by technology

[0002] The current transportation inspection management mode of transmission lines is a conventional manual operation method, which not only has high labor intensity and difficult working conditions, but also has low labor efficiency, especially in the inspection of transmission lines in mountainous areas and across large rivers, as well as in ice disasters, Floods, earthquakes, landslides, power grid emergency failures and abnormal weather conditions during nights, line maintenance personnel have to rely on ground transportation or walking on foot, use ordinary instruments or the naked eye to inspect the line and deal with equipment defects, which takes a long time and manpower High cost and high risk

The existing line inspection work still has the following problems: lack of intelligent inspection devices, low efficiency of traditional inspections; untimely feedback of inspection information, lack of emergency response methods; blind spots in inspections; low degree of automation in inspection information management

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