Method and system for detecting tower deformation based on point cloud data

Abstract

Embodiments of the present invention provide a method and system for detecting deformation of iron towers based on point cloud data. The method includes: obtaining point cloud data of the iron tower to be detected; and the coordinates of the center points of the cross-arms at all levels, the coordinates are the three-dimensional coordinates in the world coordinate system, and the center point is the intersection point of the intersecting straight lines formed by the four corner points of the cross-arm; the bottom surface is determined based on the coordinates of the four corner points of the bottom surface The center line of the bottom surface formed by four corner points, the center line is a straight line perpendicular to the bottom surface passing through the intersection point of the intersecting straight lines formed by the four corner points of the bottom surface; the spire is determined based on the coordinates of the spire and the center points of the cross-arms at all levels and the distance from the center point to the center line of the cross-arms at all levels; determine whether the iron tower to be detected is deformed based on the distance from the spire and the center point to the center line of the cross-arms at all levels. The method and system provided by the embodiments of the present invention improve the efficiency of iron tower deformation detection and avoid the cumbersome on-the-spot measurement of the detection personnel.

Description

technical field [0001] The invention relates to the technical field of point cloud data, in particular to a method and system for detecting deformation of iron towers based on point cloud data. Background technique [0002] In real life, the power grid needs to build iron towers, also known as pole towers. As the use time increases, the vertical iron tower will become inclined and deformed when the construction is completed. The traditional commonly used tower deformation detection methods mainly use theodolite, total station and other measuring equipment to measure the deformation of the tower. It is difficult to satisfy the work, and it is not easy to set up the instrument tripod. The light path between the instrument and the iron tower is easily obscured by trees, houses and other ground objects, resulting in poor sightlines. When measuring, it is necessary for personnel to climb the tower and set up a ruler to assist in the measurement, which greatly increases the risk ...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method and system for detecting the deformation of iron towers based on point cloud data, which is used to solve the problem that the existing method for detecting the deformation of iron towers consumes a lot of manpower, and the inspectors must go to the iron tower for on-site measurement.

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