A seam tracking system based on visual sensor is developed in this study.The processing of the self-teaching system is as follows: before welding

CCD visual sensor detects the seam image

database dynamically stores coherent data

thereby remembering the control route from initial state to goal state;During welding course

the system calls the database and arrives at automatic welding according to the preceding route.The procedure and realization of the self-teaching system is introduced in detail.The procedur...