Angle Acquisition of Scaffold Rod Based on Laser Scanning Point Cloud
Scaffold deformation monitoring is the basis of scaffold safety,and construction sites generally use sensors or total stations for point monitoring,with low monitoring efficiency and accuracy.Therefore,a scaffold rod angle acquisition method based on point cloud is proposed.Firstly,a laser scanner is used to scan the erected scaffold,and after the pre-processing of the collected scaffold point cloud data,the scaffold rod cylinders are fitted based on the RANSAC algorithm,and different rod cylinder equations are extracted from the axial direction vectors,and the angles between the direction vectors are calculated.In order to verify the effectiveness of the proposed method,the scaffold point cloud model is rotated around an axis or a point at different theoretical angles to obtain a new point cloud model,and then the above method is used to calculate the angle between it and the original model,and compared with the theoretical angle.The results show that the maximum relative error between the calculated angle and the theoretical angle is 1.25%,and the average relative error is 0.75%,which verifies the reliability of the method and provides new ideas for scaffold deformation monitoring.
万方数据
维普
