摘要
针对现有输电线路覆冰监测方法的不足,提出了利用机载激光扫监测输电线路的导线覆冰厚度。首先研究了LiDAR点集分类理论和导线空间位置的提取算法,然后根据监测获得导线覆冰前后的弧垂变化量,结合导线力学分析模型建立导线覆冰厚度精细分析模型。最后对导线覆冰监测厚度与现场实测厚度结果进行一致性分析,验证该方法的可行性和准确性。
As for the lack of existing icing monitoring methods, this paper presented a new method which was suitable for large-scale, efficient and fine monitoring of equivalent icing thickness. Firstly, the paper researched the Li DAR points cloud classification theory and the transmission line spatial location extraction arithmetic. Secondly, the paper surveyed the equivalent icing thickness of transmission line, in accordance with shape changes of conductor derivation from icing. Thirdly, some field experiments proved that this survey method has a highly practicability and veracity.
出处
《地理空间信息》
2017年第6期84-86,共3页
Geospatial Information
关键词
LiDAR点云分类
导线提取
等值覆冰厚度
导线力学状态方程
Li DAR points cloud classification
conductor extraction
equivalent icing thickness
conductor mechanical state equation
