Title :
How to reuse supervisors when discrete event system models evolve
Author :
Chen, Yi-Liang ; Laortune, S. ; Lin, Feng
Author_Institution :
Sci. Center, Rockwell Int. Corp., Thousand Oaks, CA, USA
Abstract :
System evolution, such as addition or replacement of a component, reconfiguration upon a diagnosed failure, or process changes leading to new requirements on the system behavior, may often necessitate complete redesign of the existing supervisors for a discrete event dynamic system. Such redesign may occur because the supervisors are synthesized based on the models of the system and the specifications, and these models may have to be modified, or “refined”, upon the evolution of the system. The objectives of this work are to: (i) study conditions on the evolution of the system model under which it is possible to reuse the existing supervisors for the original set of specifications, and (ii) propose a systematic method for this reuse of the supervisors, based on the automatic synthesis of input and output “interfaces”, when the conditions identified in (i) hold
Keywords :
control system synthesis; discrete event systems; automatic interface synthesis; component addition; component replacement; diagnosed failure; discrete event dynamic system; discrete event system models; input interfaces; output interfaces; supervisor reuse; system reconfiguration; Computational modeling; Control system synthesis; Discrete event systems; Humans; Law; Legal factors; Manufacturing systems; Production facilities; Sensor systems; Supervisory control;
Conference_Titel :
Decision and Control, 1997., Proceedings of the 36th IEEE Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4187-2
DOI :
10.1109/CDC.1997.657902
