Intelligent Automation and Soft Computing, Vol. 13, No. 3, pp. 289-304, 2007 Copyright © 2007, TSI® Press Printed in the USA. All rights reserved AN INTELLIGENT ACTION CONTROL SYSTEM BASED ON EXTENDED VECTOR ANNOTATED LOGIC PROGRAM AND ITS HARDWARE IMPLEMENTATION KAZUMI NAKAMATSU University of Hyogo Shinzaike HIMEJI 670-0092 JAPAN nakamatu@shse.u-hyogo.ac.jp AND YOSHIO MITA AND TADASHI SHIBATA The University of Tokyo Bunkyo-ku TOKYO 113-8656 JAPAN {mita,shibata}@ee.t.u-tokyo.ac.jp ABSTRACT—Various intelligent control systems for autonomous machines have been developed, and such intelligent control systems often require real time processing. However, it is difficult for software control to realize fast real time processing. Therefore, intelligent control systems that can be easily hardware implemented are expected. We propose a theoretical framework for intelligent autonomous action control systems based on a paraconsistent logic program called an EVALPSN. The paraconsistent logic program EVALPSN can deal with defeasible deontic reasoning and conflicts, and is appropriate for hardware implementation. In order to show the feature of the intelligent action control, we take a virtual beetle robot action control system as an example. Moreover, we introduce the electronic circuit implementation for the robot action control system with experimental results. Key Words: Intelligent action control, Paraconsistent logic program, Defeasible deontic reasoning, EVALPSN (Extended Vector Annotated Logic Program with Strong Negation), Electronic circuit implementation. 289