Locationing of telemanipulator based on task capability

  • Park, Young-Soo (RandD group, NEMAC, Korea Atomic Energy Research Institute, Yusung P.O.Box 15, Taejon, R.O.K. (Tel:+82-42-868-2855)) ;
  • Yoon, Jisup (RandD group, NEMAC, Korea Atomic Energy Research Institute, Yusung P.O.Box 15, Taejon, R.O.K. (Tel:+82-42-868-2855)) ;
  • Cho, Hyung-Suck (Dept. of Mechanical Engineering, KAIST)
  • Published : 1995.10.01

Abstract

This paper presents a time efficient method for determining a sequence of locations of a mobile manipulator that facilitates tracking of continuous path in cluttered environment. Given the task trajectory in the form of octree data structure, the algorithm performs characterization of task space and subsequent multistage optimization process to determine task feasible locations of the robot. Firstly, the collision free portion of the trajectory is determined and classified according to uniqueness domains of the inverse kinematics solutions. Then by implementing the extent of task feasible subspace into an optimization criteria, a multistage optimization problem is formulated to determines the task feasible locations of the mobile manipulator. The effectiveness of the proposed method is shown through a simulation study performed for a 3-d.o.f. manipulator with generic kinematic structure.