Improvement in the Computing Time of Robot Manipulators Using a Multimicroprocessor

[+] Author and Article Information
T. Watanabe, M. Kametani, K. Kawata, K. Tetsuya

Department of Precision Mechanics, Kyoto University, Kyoto 606, Japan

J. Dyn. Sys., Meas., Control 108(3), 190-197 (Sep 01, 1986) (8 pages) doi:10.1115/1.3143767 History: Received April 01, 1986; Online July 21, 2009


A multimicroprocessor having a hardware circuit designed to aid the synchronization of CPUs and software to schedule tasks on the CPUs is proposed. The system is applied to the calculation of the joint angles of six-axis robot manipulators. It is verified that the scheduling software gives the optimum schedule for an elbow manipulator and a sub-optimum one for the Stanford manipulator. Actual calculations on the multiprocessor verifies that the computing time is decreased to 3.6 ms by the proposed parallel processing using seven CPUs and seven APUs, while it takes about 20 ms by ordinary processing using one CPU and one APU.

Copyright © 1986 by ASME
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