摘要
高压线塔属于杆状构筑物,对倾斜变形非常敏感,倾斜度是检测其稳定性的重要指标。传统的单点测量方式,无法反映高压线塔的整体变形,提出基于地面三维激光扫描技术监测高压线塔倾斜度的方法,采用分层处理的方式,通过边界提取、直线分割、直线拟合等过程处理点云数据。采集山西省柳林某高压线塔点云数据进行实验,求取各层切片的中心坐标并计算高压线塔的倾斜度,对计算结果进行分析,得出线塔仍处于安全运行状态的结论。
High‐voltage line tower belongs to the rod struction ,which is very sensitive to the inclination deformation .The inclination detection is an important indicator of its stability .The traditional single point measuring method cannot reflect the overall deformation of the high‐voltage line tower .A method based on TLS is proposed to monitor the high‐voltage line tower inclination by using the method of hierarchical processing ,by the boundary extraction , line segmentation and line fitting process point cloud data . Collecting a high‐voltage tower point cloud data of Liulin County of Shanxi Province to carry out experiments ,calculating the center coordinates of each layer slice and high‐voltage transmission line tower inclination ,analyzing the calculation results , it shows that the line tower is still operating in safe conditions .
出处
《测绘工程》
CSCD
2016年第8期65-69,75,共6页
Engineering of Surveying and Mapping
基金
国家测绘局测绘地理信息公益性行业专项资助项目(201412020)
河南省高等学校重点科研计划项目(15A420005)
河南理工大学博士基金资助项目(B2012-004)
关键词
点云数据
点云切片
边界提取
边界分割
直线拟合
point cloud data
point cloud slice
boundary extraction
line fitting
boundary segmentation
