背包式移动三维激光扫描系统的应用

Application of Backpack-mounted 3D Mobile Scanning Systems

研究当前具有代表性的3款背包式移动三维激光扫描系统,对其中使用的关键技术进行了对比分析,并通过数据采集试验验证了此类设备的精度和效率。结果表明,3款设备在平面点位精度和间距精度上均优于5 cm,能满足一般测绘项目(如大比例尺地形图测绘)的要求,但在高程精度上仍存在一定的差距;而相比于传统作业方法,3款设备在作业效率上优势明显。多传感器、多定位算法的融合是此类设备今后应用发展的一个方向。

In this paper,we study three current representative Backpack-mounted 3D mobile scanning systems and analyze the key technics used in these devices. Then we verify the precision and efficiency of such devices through the data acquisition test methods. The resuhs show that these devices can achieve the requirements of general surveying and mapping projects such as the standard of large scale topographic surveying and mapping, on which the precision is better than 5 cm in the positional and spacing domain. Nevertheless the elevation precision of these devices doesn＇t achieve the requirements. In addition,compared with the traditional methods,there are obvious advantages in the operation efficiency. In the future,the integration of multi-sensor and multi-location algorithms is one of the key trends for the application of such devices.