Time Windows: An Approach to Automated Abstraction of Continuous-Time Models into Discrete-Event Models

Abstract

This paper describes the automated generation of time windows from continuous system simulation models. Time windows can be used to automatically generate equivalent discrete-event models at a coarser granularity level, and they are also instrumental to the design of event-based control systems. The generation of time windows represents one facility in the knowledge-based multi-facetted modeling and simulation environment DEVS-Scheme. In this environment, continuous-time and discrete-event models can co-exist, and they can be amalgamated with AI techniques. The usefulness of these concepts will be demonstrated by means of a model of a robot-controlled fluid handling laboratory for Space Station Freedom to be used for research in life sciences, microgravity sciences, and Space medicine.


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Last modified: June 20, 2005 -- © François Cellier