无人机免像控摄影测量技术在西北地区干涸河道治理中的应用

Application of Unmanned Aerial Vehicle Image-free Photogrammetry Technology in River Regulation of Dry River Bed in Northwest China

河道治理对于恢复河道功能,实现河道资源的有效利用,促进区域生态的良好发展有着重要的意义[1]。为了解决西北地区干涸河道治理测量工作中存在的问题,提升河道治理测量工作效率,对基于PPK和RTK融合差分技术的无人机免像控摄影测量技术的精度进行了研究。以兰州市某河道治理工程为实际案例,介绍了利用无人机免像控摄影测量技术进行河道影像数据采集、摄影测量产品生产、结合摄影测量绘图软件开展河道治理测量工作的方法和流程。对基于无人机摄影测量技术的河道治理治理信息化发展前景进行了展望。

River regulation is of great significance for restoring river function,realizing effective utilization of river resources and promoting good development of regional ecology[1].In order to solve the problems existing in the survey of dry river channel regulation in northwest China and improve the efficiency of river regulation survey,the accuracy of unmanned aerial vehicle image-free controlled photogrammetry based on PPK and RTK fusion difference technology was studied.Taking a river regulation project in Lanzhou city as an example,this paper introduces the methods and flow of river regulation survey by using unmanned aerial vehicle image-free photogrammetry technology,photogrammetry product production and photogrammetry drawing software.The development prospect of river management informatization based on uav photogrammetry technology is prospected.