Research On Drone Monitoring Of Landslide Surface Displacement Based On BD-RTK High-precision Positioning Technology

Traditional drone monitor landslides by shooting ground images of landslides to establish orthographic maps of landslides,and use orthographic to achieve topographic mapping of landslides.This method has defects in resolution and accuracy;this paper introduces new From the drone monitoring technology to the field of landslide monitoring,study the monitoring method of landslide surface displacement based on the drone monitoring technology,which combines the drone non-touching monitoring method(tilt photogrammetry technology)and drone touching monitoring Method,through the drone tilt photogrammetry technology to achieve rapid three-dimensional reconstruction of landslide body and landslide body monitoring point position data collection,compare the data collected multiple times to achieve the purpose of landslide body surface displacement monitoring,and introduce drone touching monitoring The method is applied to the monitoring of landslide surface displacement to further improve the monitoring accuracy and expand its application prospects.The purpose of this article is to study the monitoring method of landslide surface displacement based on the combination of two monitoring methods.The main research contents and conclusions are as follows:1)Three-dimensional reconstruction of landslide bodies such as Baishuihe landslide body and Baijiabao landslide body through single-lens drone tilt photography technology,and analysis of the quality results after reconstruction Shows that the rapid three-dimensional modeling of landslide body based on single-lens tilt photography is feasible.2)Designed the drone monitoring test of slope surface displacement for non-touching monitoring method(inclined photography modeling method),collected the position information of the monitoring point with the accuracy of cm level,and realized the position change monitoring of the slope body monitoring point.The feasibility of non-touching monitoring.3)The theoretical method of drone touching monitoring of landslide surface displacement is described,and the flight path on the drone landslide is optimized for the problem of insufficient endurance of the drone in this method.The optimization result is greatly reduced compared with the original path,and the drone is improved.Endurance problem.4)Design the drone touching monitoring position calculation to correct the position deviation of the drone relative to the center point of the monitoring platform when it landed on the surface of the monitoring platform,improve the accuracy of drone touching monitoring,and research shows that the correction algorithm can effectively modify the drone Landing position deviation.