An overhead line crossing high slope tree toppling gap checking method and system

By segmenting high slopes and calculating the required distance between overhead lines and the ground, the problem of low efficiency in existing technologies is solved, enabling efficient verification of tree fall gaps, reducing the difficulty of fault diagnosis, and ensuring line safety.

CN122156308APending Publication Date: 2026-06-05CEEC HUNAN ELECTRIC POWER DESIGN INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CEEC HUNAN ELECTRIC POWER DESIGN INST
Filing Date
2026-05-07
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing methods for checking gaps caused by fallen trees when overhead power lines cross high slopes are inefficient and particularly unsuitable for harsh areas such as plateaus and uninhabited regions. This makes it difficult to troubleshoot fallen tree faults and affects the safe and stable operation of the lines.

Method used

The high slope is equivalent to a stepped segmented straight line. By obtaining the horizontal profile positioning map and the ground coordinates of each segment, the inclination angle of each segment and the required distance between the overhead line and the ground are calculated. Combined with the tree height and discharge distance, a safety check is carried out to determine the risk of tree falling and take pruning or felling measures.

Benefits of technology

It improves the efficiency of troubleshooting fallen trees and reduces the workload of on-site measurements. It is especially suitable for plateau and uninhabited areas, ensuring the safe and stable operation of the line.

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Abstract

The present application relates to the technical field of power transmission line safety operation and maintenance, and specifically provides an overhead line crossing high slope tree toppling gap checking method and system, which comprises the following steps: obtaining a flat section positioning map in a line engineering map, the flat section positioning map comprising at least an overhead line, a crossing tree and high slope terrain information where the crossing tree is located in the overhead line span; equivalent the high slope to a ladder-shaped segmented straight line to obtain a plurality of segmented ground surfaces; determining the coordinates of the high slope starting point and the inflection points of each segmented ground surface based on the flat section positioning map; calculating the inclination of each segmented ground surface and the overhead line-to-ground distance requirement value; and performing safety checking on the tree toppling gap based on the overhead line-to-ground distance requirement value. The method can reduce the field measurement workload, improve the work efficiency, reduce the troubleshooting difficulty of tree toppling faults in the operation and maintenance stage, and is especially suitable for harsh areas such as highlands and uninhabited areas, thereby providing technical support for the safe and stable operation of the line.
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