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Petri net methods for reasoning in real-time control systems

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2 Author(s)
Murata, T. ; Dept. of Electr. Eng. & Comput. Sci., Illinois Univ., Chicago, IL, USA ; Jaegeol Yim

In many real-time control systems, inputs to a controller are signals from sensors and outputs of a controller are stimulators of devices. The controller must respond to the signals and function as fast as possible. Predicate-logic rule-based (expert) systems are too slow for use in real-time control applications. In this paper, the authors investigate Petri-net methods for reasoning in propositional logic, as a special case of predicate-logic Petri-net methods. The authors' algorithm based on the Petri net fixpoint can deduce all logically implied propositions (or control signals) with the time complexity O(n 2*m), where n is de number of rules and m is the number of propositions in the system

Published in:

Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on  (Volume:1 )

Date of Conference:

30 Apr-3 May 1995

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