无人机航测制图数据处理关键技术研究及应用

Research and application of key technology in data processing of UAV aerial survey mapping

随着无人机技术的发展,使用无人机摄影测量技术绘制1:2000地形图已成为如今的主流方法。无人机摄影测量是指用无人机搭载传感器对地面连续摄取像片,结合地面控制点测量、实地调绘和立体测图等步骤,绘制出地形图的作业。但由于实际无人机外业工作中存在“无人机航线规划复杂、飞行数据处理人为干预较多、辅助外控点以及实地调绘数据处理操作复杂、格式不统一”等问题,很大程度上影响着外业工作和生产效率。因此,本文深入研究无人机航测制图数据处理关键技术及实际应用,深入优化外业工作中数据处理流程,构建无人机航测制图数据处理一体化方案,致力于无人机外业工作数智化转型,提高生产效率。实际项目应用表明,本文提出的无人机航测制图数据处理技术很大程度上提升了外业工作的效率,减少实际数据处理过程中的人为干预,并且能够推广应用于其他铁路勘察设计项目。

With the development of UAV technology,using UAV photogrammetry technology to draw 1:2000 topographic map has become the mainstream method.UAV photogrammetry refers to the operation in which the UAV is equipped with sensors to continuously take pictures of the ground and draw topographic maps by combining the steps of ground control point measurement,field adjustment and stereo mapping.However,due to the problems in the actual field work of UAV,such as“complicated route planning of UAV,more human intervention in flight data processing,complicated operation of auxiliary external control points and field adjustment and drawing data processing,and inconsistent format”,field work and production efficiency are greatly affected.Therefore,this paper indepth studies the key technology and practical application of aerial survey mapping data processing of unmanned aerial vehicles,further optimizes the data processing process in field work,builds an integrated program of aerial survey mapping data processing of unmanned aerial vehicles,and commits to the intelligent transformation of field work of unmanned aerial vehicles and improves production efficiency.Practical project application shows that aerial survey mapping data processing technology of UAV proposed in this paper greatly improves the efficiency of field work,which reduces human intervention in the actual data processing process,and can be applied to other railway survey and design projects.