Abstract
In the survey of transmission line, the traditional aerial survey method is difficult to get the surface elevation through the vegetation, corn field and other surface attachments, while the manual survey method has the disadvantages of low efficiency and high cost in mountainous and hilly areas. In this paper, the airborne lidar surveying and mapping technology is used, combined with a 110kV transmission line engineering survey example, generating high-precision surface DEM based on the point cloud classification results and extracting the single wood information based on the point cloud to accurately count the amount of tree felling. A panoramic simulation line corridor engineering geographic information system is established, which provides technical support for the route scheme optimization and plane section extraction, and is applied to the project. It is of practical significance to evaluate the effect.
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