Obstacle-navigation strategy of a wire-suspend robot for power transmission lines

This paper presents an obstacle-navigation strategy for a wire-suspend robot for power transmission lines based on a novel movement mechanism. The kinematics of the mobile robot and the process of obstacle-navigation control are analyzed in detail. A realtime expert system with hybrid architecture C Language Integrated Production System (CLIPS) is described as the mobile robot control system. The realtime expert system is developed by CLIPS and C language, so it has powerful logical reasoning ability and data processing ability. And the expert system can instruct the mobile robot to navigate obstacles autonomously on overhead ground wires. A realtime process and a conflict elimination algorithm realize the realtime ability of the control system. The robot task plan has two modes : layered plan and direct control. The robot can study online or offline, and when it encounter the same obstacles, it can navigate them quickly