Visual positioning trajectory tracking method and system, intelligent terminal and medium

The invention relates to the technical field of laser processing, and discloses a trajectory tracking method and system for visual localization, an intelligent terminal and a medium, and the method comprises the steps: shooting a plurality of target points on a current reference line on a to-be-processed product, and obtaining a current reference line position of the current reference line in a mechanical coordinate system; and controlling the to-be-processed product to horizontally move so as to shoot a plurality of target points on the upper and lower reference lines of the to-be-processed product, and engraving a current parallel etching line at a preset distance from the current reference line according to the current reference line position until the etching lines corresponding to all the reference lines on the to-be-processed product are engraved. After the position of the current reference line is obtained, the plurality of target points on the next reference line are shot, and meanwhile, the parallel