车载移动测量系统研制与应用实践

Development and application of vehicle mobile mapping system

为满足高精度空间信息获取的需求,本文在集成高端国产激光雷达、惯性测量单元等传感器的基础上,研发了新一代测绘级车载移动测量系统。设计优化了系统通信总线,对影响系统精度的因素进行了分析,并提出了激光雷达锥扫角标定方法及系统整体标定方法,提出了使用RTK优化POS数据的方法,精度达到厘米级。该系统在带状测图、高精度导航地图生产中进行了探索应用,证明系统安装便捷,采集处理速度快,满足高精度空间数据获取的需求,提高了空间数据获取的效率和精度。

In order to meet the needs of high-precision spatial information acquisition,a new generation of mapping level vehicle mobile measurement system is developed based on the integration of high-end domestic LiDAR,inertial measurement unit and other sensors.This paper designs and optimizes the system communication bus,analyzes the factors that affect the system precision,puts forward the laser radar cone sweeping angle calibration method and the system whole calibration method,and puts forward the method of optimizing the POS data by using RTK.The accuracy of the system is the centimeter level.The system has been applied in the production of highprecision navigation map.It is proved that the system is easy to install,fast to collect and process,meets the needs of high-precision spatial data acquisition,and improves the efficiency and accuracy of high-precision spatial data acquisition.