摘要
针对传统方法获取地下空间数据效率低的问题,文章直接利用地面激光扫描仪快速获取地下人防工程的激光点云数据,在GPS信号极弱的情况下利用集成的GNSS/IMU获取的惯导信息拼接各扫描站点云数据,借助少量控制点可得到满足测图精度要求的点云数据,使室内外测图一体化大面积生产成为可能。
In view of the low efficiency of traditional methods to obtain underground space data, this paper directly uses the ground laser scanner to quickly obtain the laser point cloud data of underground civil air defense project. In the case of extremely weak GPS signal, the inertial navigation information obtained by the integrated GNSS/IMU is used to splice the cloud data of each scanning site, and the point cloud data that meets the mapping accuracy requirements can be obtained with a few control points, so it will be possible to integrate large area production of indoor and outdoor mapping.
作者
刘元志
周园
LIU Yuan-zhi;ZHOU Yuan(The Second Surveying and Mapping Institute of Hunan Province)
出处
《智能建筑与智慧城市》
2022年第4期110-112,共3页
Intelligent Building & Smart City
关键词
地面激光扫描仪
激光点云
地下空间
快速获取
测图精度
ground laser scanner
laser point cloud
underground space
quickly acquisition
mapping accuracy
