计算机工程与应用 ›› 2014, Vol. 50 ›› Issue (17): 259-262.

• 工程与应用 • 上一篇    下一篇

一个输电线系统净空排查算法的优化过程

游安清1,韩晓言2,潘旭东1,贺  喜1   

  1. 1.中国工程物理研究院 应用电子学研究所,四川 绵阳 621900
    2.四川省电力公司 绵阳电业局,四川 绵阳 621000
  • 出版日期:2014-09-01 发布日期:2014-09-12

Optimizations of spatial distance check algorithm in power transmission system

YOU Anqing1, HAN Xiaoyan2, PAN Xudong1, HE Xi1   

  1. 1.Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
    2.Mianyang Power Bureau, Sichuan Power Company, Mianyang, Sichuan 621000, China
  • Online:2014-09-01 Published:2014-09-12

摘要: 针对激光雷达扫描得到的输电线路三维点云数据,在对象分类的基础上,设计一个全自动的净空排查算法,以确定输电线路与周围地物是否有过于接近的情况。由于净空排查的基本算法相当耗时,故采用了包围盒、循环调整、降维、多分辨率、并行运算等措施,对基本算法作了7级优化,使算法速度提高超过20 000倍,最终达到亚秒级的耗时。

关键词: 激光雷达, 维点云, 输电线, 距离排查

Abstract: For 3D laser point cloud scanned by LiDAR on power wires, an automatic algorithm is needed for spatial distance check to inspect whether wires are too close somewhere to ground objects. The basic algorithm for distance check is very time-consuming, so 7 optimizations are applied to the algorithm, including enclosing box, loop adjustment, dimension decrease, multiple resolution, parallel calculation and so on, to speed the algorithm for over 20000 times. The final consumed time is decreased to less than one second.

Key words: Light Detection And Ranging(LiDAR), 3D point cloud, power wires, distance check