Method and system for observing sag of ground wire by gear side method of power transmission line

Abstract

The invention discloses a method and a system for observing the sag of a ground wire by a power transmission line gear side method. The method comprises the following steps of: erecting a total station at any point with a wide visual field at an observation gear side of an overhead power transmission line; establishing a space rectangular coordinate system by using a total station; respectively measuring and recording coordinates of wire clamps at two ends of the ground wire and coordinates of any point of the ground wire; a parabolic equation passing through the three points at the same time is calculated through the recorded coordinates of the three points, and the vertical distance from the middle point of the connecting line of the wire clamps at the two ends of the ground wire to the parabola is the sag f0 of the ground wire. The method can reduce the observation time and risks caused by high-altitude operation, directly calculates and outputs a result through software, is simple and convenient to operate, good in detection adaptability and high in speed, reduces the workload caused by calculation of observers, improves the data processing efficiency and calculation accuracy, and is suitable for popularization and application. And the quality of inspection work such as construction, actual measurement, completion pre-acceptance and the like in the stringing construction process of the power transmission line is greatly improved.

Description

technical field [0001] The invention relates to the technical field of power transmission lines, in particular to a method and a system for observing the sag of a ground wire by a side-to-side method of a power transmission line. Background technique [0002] At present, in the process of transmission line construction and acceptance, the methods used to observe sag include angle method, sag plate observation method, midpoint height method and other methods. Among the above observation methods, the calculation and operation are very complicated and very difficult. Being easily affected and limited by terrain, these methods greatly increase the workload of workers and reduce the efficiency of work. For these problems, there is no simple, convenient and effective method at present. Contents of the invention [0003] Aiming at the above-mentioned technical problems in the related art, the present invention proposes a method and system for observing the sag of the ground cond...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of transmission line construction and acceptance, the methods used to observe sag include angle method, sag plate observation method, midpoint height method and other methods. Among the above observation methods, the calculation and operation are very complicated and very difficult. Easily affected and restricted by the terrain, these methods greatly increase the workload of workers and reduce the efficiency of work

To address these problems, there is no simple, convenient and effective method