A Time-Centric Model for Cyber-Physical Applications

Abstract

The problem addressed by this paper is that real-time embedded soft- ware today is commonly built using programming abstractions with little or no temporal semantics. The paper discusses the use of an extension to the Ptolemy II framework as a coordination language for the design of distributed real-time embedded systems. Specifically, the paper shows how to use modal models in the context of the PTIDES extension of Ptolemy II to provide a firm basis for the design of an important class of problems. We show the use of this environment in the design of interesting practical real-time systems.