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

Abstract

The embodiment of the invention provides a method and system for detecting iron tower deformation based on point cloud data. The method comprises steps that the point cloud data of a to-be-detected iron tower are acquired; coordinates of four corners of a bottom surface of the to-be-detected iron tower, a tower tip and center points of all levels of cross arms are determined based on the point cloud data, the coordinates are three-dimensional coordinates under a world coordinate system, and the center points are intersection points of intersection straight lines formed by the four corners of the cross arms; based on the coordinates of the four corners of the bottom surface, a center line of the bottom surface formed by the four corners of the bottom surface is determined, the center line is a straight line perpendicular to a bottom surface and passing through the intersection point of crossed straight lines formed by the four corners of the bottom surface; distances from the central points of the tower tip and the cross arms to the central line are determined based on the coordinates of the central points of the tower tip and the cross arms; whether the to-be-detected iron tower deforms is determined based on the distances from the tower tip and the central points of the cross arms to the central line. The method is advantaged in that efficiency of iron tower deformation detection is improved, and the trouble that detection personnel need to measure on site is avoided.

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 ...

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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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