Position measurement of target alignment based on 3D depth camera

To address the issue of manual observation for aligning operations during the loading of the large target, a 3D depth camera was used to measure the position of the alignment target. The recognition of the alignment target is completed by selecting the fixed threshold algorithm and the contour-based minimum enclosing circle recognition algorithm in the position measurement process, and the measurement of the target position is realized by three-dimensional coordinate stereo solution. The experimental results indicate that the error range of position measurement after function fitting is within ±1mm. This meets the requirements for automatic alignment during the loading process of the large target.