State observability and condition observability for a class of interacting discrete event systems

This paper introduces the concepts of state observability and condition observability for condition systems, a class of systems composed of discrete state components which interact via discrete binary signals called conditions. Given a set of externally observed conditions, state observability impli...

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Bibliographic Details
Published in:Mathematics and computers in simulation 2006-01, Vol.70 (5), p.275-286
Main Authors: Holloway, Lawrence E., Gong, Yu, Ashley, Jeff
Format: Article
Language:English
Subjects:
Condition systems
Discrete event system
Observer
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Summary:This paper introduces the concepts of state observability and condition observability for condition systems, a class of systems composed of discrete state components which interact via discrete binary signals called conditions. Given a set of externally observed conditions, state observability implies that the state of the system can be determined from the observations, and condition observability implies that all unobserved input and output conditions of the system can be determined from the observations. In this paper, we present a class of systems which is state observable and condition observable. We present a method to synthesize an observer system to provide state and condition signal estimates for a single component subsystem.
ISSN:0378-4754
1872-7166
DOI:10.1016/j.matcom.2005.11.013