Title :
Multi CPU control system for kinematic control of a redundant manipulator
Author :
Kimura, Shinichi ; Okuyama, Toshiyuki ; Takahashi, Masato
Author_Institution :
Commun. Res. Lab., Minist. of Posts & Telecommun., Koganei, Japan
Abstract :
Adaptation to partial failure is one of the most important requirements for space robotics, since space robots cannot be repaired after they have been launched. We propose a decentralized autonomous control algorithm for hyper-redundant manipulators that uses parallel processing with low-performance processors to achieve this adaptation. In this paper, a number of manipulator joints are locked at a certain angle in a computer simulation and the adaptability of the control algorithm to these failures is assessed. The control algorithm successfully continues its positioning task at a rate of more than 90 percent, even after half of its joints have failed. The control algorithm is also compared with behavior-based control architecture
Keywords :
decentralised control; digital simulation; manipulator kinematics; position control; behavior-based control architecture; computer simulation; decentralized autonomous control algorithm; kinematic control; manipulator joints; multi CPU control system; positioning task; redundant manipulator; space robotics; Actuators; Communication system control; Control systems; Fault detection; Kinematics; Manipulators; Orbital robotics; Parallel processing; Quadratic programming; Telecommunication control;
Conference_Titel :
Systems, Man, and Cybernetics, 1997. Computational Cybernetics and Simulation., 1997 IEEE International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-4053-1
DOI :
10.1109/ICSMC.1997.633118