Survey of mobility approaches for EVR application in space station

This paper mainly presents the survey of mobility approaches for the Extra Vehicular Robotics (EVR) application in space station. Seven different kinds of mobility approaches are identified, including straight rail mobile approach, inchworm-like movement approach, free flying vehicle/robot with docking approach, handrail climbing approach, mobile base with circular climbing approach and long manipulator transferring approach. The performance and difference of each approach are elaborated carefully, which offers reference for further research.