基于无人机数字摄影测量的地质灾害预测方法

Geological Disaster Prediction Method Based on UAV Digital Photogrammetry

地质灾害区域无人机图像采集过程中,程控平行飞行以及程控姿态与地质异常移动的计算过程较为复杂,为此提出一种新的基于无人机数字摄影测量的地质灾害预测方法。通过无人机采集数字摄影测量信息,利用信息设计航线,使空中的摄影覆盖范围扩大,解决程控平行飞行以及程控姿态稳定,实现三维的地质测量目标。再通过概率积分法来完成地质下沉、倾斜、曲率、水平移动、水平变形、变形值以及最大移动的预测。最终通过仿真证明,上述方法预测精度较高,计算过程简单,效果良好。

For UAV(Unmanned Aerial Vehicle)image acquisition in region of geological disaster,the process of calculating the programmable parallel flight and attitude and the geological anomaly movement is complex.Therefore,a method of predicting geological disaster based on UAV digital photogrammetry was proposed.At first,the digital photogrammetric information was collected by UAV.And then,the information was used to design the air route,and thus to expand the coverage of aerial photography,so that the programmable parallel flight and the programmable attitude stability were solved.After that,the three-dimensional geological survey target was achieved.Moreover,the probability integral method was used to predict the geological subsidence,inclination,curvature,horizontal movement,horizontal deformation,deformation value and maximum movement.Simulation results show that the prediction accuracy of the proposed method is high.In addition,the calculation process is simple and the effect is good.