一种利用无人机监测建筑物动态变形的方法

A method for monitoring dynamic deformation of building using UAV

为解决摄影测量动态监测系统(Photogrammetric Dynamic Monitoring System,PDMS)在现代建筑物动态变形监测中存在灵活性低、监测范围受限的问题,本文提出将无人机(Unmanned Aerial Vehicle,UAV)应用于监测钢结构的动态变形中,构建一种UAV-PDMS监测方法,并在动态变形监测过程中,创新性地提出改进的零中心运动视差(Zero-centered Motion Parallax,Z-MP)方法,保证无人机在悬停过程中的姿态稳定性,从而使得监测精度更佳。针对某钢结构开展动态变形监测试验,监测结果表明,钢结构较为坚固,变形为弹性变形,在限差范围内。因此,UAV-PDMS能较好地应用于钢结构变形监测当中,且改进的Z-MP方法可以有效降低无人机的悬停误差,具有一定的工程应用价值。

In order to solve the problems of low flexibility and limited monitoring range of PDMS in monitoring dynamic deformation of modern building,this paper proposes to apply UAV to monitor the dynamic deformation of steel structure and build a UAV PDMS monitoring method.In the process of monitoring dynamic deformation,an improved Z MP method is proposed to ensure the attitude stability of the UAV during hovering,thus making the monitoring accuracy better.A dynamic deformation monitoring test is carried out for a steel structure.The monitoring results show that the steel structure is relatively solid,and the deformation is elastic,within the tolerance range.Therefore,UAV PDMS can be better applied to steel structure deformation monitoring,and the improved Z MP method can effectively reduce the hovering error of UAV,which has certain engineering application value.