Iron tower bolt defect display method and system based on three-dimensional live-action model

Abstract

The invention provides an iron tower bolt defect display method and system based on a three-dimensional live-action model. The method comprises: achieving automatic flight of an unmanned aerial vehicle through air route planning, collecting iron tower bolt installation image information, shooting position coordinates (planes and elevations) and shooting angle information, and carrying out POS calculation, aerial triangulation encryption, three-dimensional modeling and the like to construct a live-action three-dimensional model of an iron tower; placing the three-dimensional model of the iron tower on a three-dimensional earth, and analyzing and recognizing the image by using a deep learning intelligent image recognition algorithm; locating the location of a defect, and marking a red colorblock in the three-dimensional scene; and according to the marked defect position on the three-dimensional model, calculating the position coordinates of the bolt defect by using the principle of forward intersection in combination with the position and attitude information of all photos, and carrying out manual checking. According to the invention, with the method and the system, detection of thebolt integrity rate of the power transmission line iron tower is guaranteed, on-site construction acceptance is assisted, the construction quality of the power transmission line is improved, and safety risks caused by human factors are reduced.

Description

technical field [0001] The invention belongs to the technical field of power line inspection, and in particular relates to a method and system for displaying iron tower bolt defects based on a three-dimensional real scene model. Background technique [0002] In recent years, there have been many tower collapse accidents of power transmission and transformation lines in China. Most of the accidents were caused by defects in the quality of tower materials and bolts. The accidents were mainly due to the need to manually mount the towers. The bolt defects were judged by observation, and the specific acceptance quality was often affected by the personnel. Human factors such as physical strength, mental state, and professionalism have a relatively large impact. [0003] With the development of science and technology, drones are used in many industries to replace humans to complete aerial operations, and can form an aerial platform. The design concept of drones was first used in th...

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Problems solved by technology

[0004] In recent years, the domestic power industry has also achieved certain results in the research on the detection of UAV aircraft lines, such as: using the ultraviolet detector on the UAV to monitor the corona discharge of the transmission line, and using the UAV to patrol the transmission line. However, the application of UAVs in the power industry at this stage is still limited to taking pictures of lines through UAVs, viewing the situation of transmission lines from images, instead of manually climbing towers, and for the collected images and videos Without subsequent processing and identification, the detection results will also be affected by human factors

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