基于LiDAR数据的输电线路平断面图表达方式探讨

Discussion on Expression of Transmission Line Plan and Profile Map Based on LiDAR Data

输电线路勘测设计工作中使用的平断面图是开展设计工作必不可少的重要依据。本文通过对目前输电线路勘测设计中的平断面制作方法进行分析;结合机载激光技术的特点,对多个实际工程进行了激光点云高程精度统计,得出能够满足平断面精度的结论,再结合激光点云对现有工作流程进行研究,得出一种新的平断面图表达方式;并对新断面图的应用前景进行了展望,认为本文提出的平断面图表达方式将有助于深入挖掘激光点云数据的应用价值,有助于加深设计深度和提高勘测设计质量。

Plan and profile maps used in the survey and design of transmission lines are indispensable for the design work. This paper analyzes the method of flat section making in the current survey and design of transmission lines; Combined with the characteristics of airborne laser technology, the altitude accuracy of laser point clouds is counted for several practical projects. The present work flow is studied with the laser point cloud, and a new expression of flat section map is obtained; The prospect of the application of the new section map is also prospected, it is believed that the expression of plan and profile maps proposed in this paper will be helpful for further mining the application value of laser point cloud data, deepening the design depth and improving the quality of survey and design.