Time Windows: An Approach to Automated Abstraction of
Continuous-Time Models into Discrete-Event Models
Keywords
- Qualitative Control
- High Autonomy Systems
- Time Windows
- Automated Model Abstraction
- Automated Model Systhesis
- System Entity Structure
- DEVS-Scheme
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
instrumental to the design of event-based control systems. The generation of
time windows represents one facility in the knowledge-based multifacetted
modeling and simulation environment, DEVS-Scheme. In this environment,
continuous-time and discrete-event models can coexist 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.