Method and device for obtaining building demolition amount in transmission line corridor

Abstract

The present invention provides a method and device for obtaining a building demolition amount in a transmission line corridor. The method comprises a step of obtaining laser radar point cloud data of buildings in the transmission line corridor and carrying out filtering processing, determining ground point cloud data and non ground point cloud data, and determining height data corresponding to different objects on a ground according to the above two data, and a step of detecting building data from the height data of different objects on the ground according to the shape characteristics, geometric characteristics and height characteristics of the buildings, and thus determining the demolition amount of the buildings. Based on laser radar and the geometric characteristics of the buildings, the complex building data can be quickly and accurately obtained, and the demolition amount of the buildings is calculated. A building area statistics problem in the transmission line corridor in the conditions of the lack of spectrum image and planning and design drawing information delay is solved, the time cost and manpower cost in manual inspection are greatly reduced, and the method and the device can be applied to the precise measurement of a building demolition area and have a high use value.

Description

technical field [0001] The invention relates to the technical field of statistics of obstacles in transmission line corridors, in particular to a method and device for obtaining the amount of building demolition in transmission line corridors. Background technique [0002] At present, with the growth of my country's electricity demand, the construction tasks of the power grid continue to increase, and ultra-high voltage power grid construction projects have been launched in various parts of the country. These projects will gradually increase the land occupied by cross-regional transmission line corridors. There may be buildings on the land to be occupied, which will need to be demolished in order to construct the ultra-high voltage transmission line corridor. [0003] Therefore, in the task of power grid construction, the calculation of the amount of building demolition in the transmission line corridor is a very important task in the design of transmission lines, and it play...

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Problems solved by technology

In addition, for areas with large terrain fluctuations or dense vegetation, problems such as inaccurate building layers and missing buildings may occur during aerial photography

[0006] The inventor found in the research that the statistical methods for the demolition of buildings and objects in the transmission line corridor in the prior art are not ideal, and no effective solution has been proposed for this problem

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