Sixth International Conference on Real-Time Computing Systems and Applications (RTCSA'99)
Synchronous Composition of Discretized Control Actions: Design, Verification and Implementation with ORCCAD
Hong Kong, China
December 13-December 15
ISBN: 0-7695-0306-3
Robotic systems are typical examples of hybrid systems where continuous time aspects, related to control laws, must be carefully merged with discrete-time aspects related to control switches and exception handling. These two aspects interact in real-time to ensure an efficient nominal behavior of the system together with safe and graceful degradation otherwise. In a mixed synchronous/asynchronous approach, ranging from user's requirements to run-time code, Orccad provides formalized control structures, the coordination of which is specified using the Esterel synchronous language and formally verified using the Fc2tools package. CAD tools have been designed and integrated to help the users along the steps of programming, verification and implementation processes.
Index Terms:
synchronous programming, programming environment, continuous/discrete time, formal verification, control oriented applications
Citation:
Daniel Simon, Roger Pissard-Gibollet, Konstantinos Kapellos, Bernard Espiau, "Synchronous Composition of Discretized Control Actions: Design, Verification and Implementation with ORCCAD," rtcsa, pp.158, Sixth International Conference on Real-Time Computing Systems and Applications (RTCSA'99), 1999