“…However , the traditional artificial potential field method has the limitations of local minimum and the target can not be reached. At present, there are many methods to jump out of the local minimum , such as increased guidance, introduced the escape force, geometric information method, simulated annealing algorithm, dynamic step length binary method, walking along the wall method and so on [2][3][4][5][6][7]. In this paper, the problem of local minimum is solved by changing the direction of repulsion force and the robot moves toward the target point.…”