Design of Experimental Platform for Profile Measurement of Structural Steel Based on 3D Point Cloud Registration
In response to the difficulties in continuous monitoring,low measurement accuracy,and low efficiency of traditional manual profile measurement of structural steel,an experimental platform for profile measurement based on 3D point cloud stitching was designed.A hardware platform for 3D point cloud data collection was built using 6 sets of laser light sources and charge coupled device cameras.A multi frame 3D point cloud stitching algorithm and profile measurement method based on iterative closest point(ICP)algorithm were proposed to simulate profile measurement under moving conditions in structural steel production.The results indicate that the experimental platform can monitor the profile measurement of the structural steel in real-time,and the measurement accuracy can reach 0.01 mm.In addition,this experimental platform can conduct theoretical experimental demonstrations on the difficult issues in the profile measurement process on the production site of structural steel,and improve measurement techniques and methods.