Date Available
12-7-2011
Year of Publication
2005
Document Type
Thesis
College
Engineering
Department
Manufacturing Systems Engineering
First Advisor
Lawrence E. Holloway
Abstract
The current thesis considers the issue of state estimation of condition systems, a form of petri net with signal inputs and outputs. In previous research the problem of unobservability due to progress confusion was identified, in the presence of which state estimation is not possible. Here we introduce the notion of Time Condition Systems", a class of condition systems that uses timing information from condition models to overcome state estimation problem caused by progress confusion. To make use of the timing information in the plant model, a procedure called Exploded Time Plant" is synthesized. This procedure makes the plant model an observable model. It is proved that this procedure does not alter the structural and temporal behavior of the plant model and the plant maintains its integrity. The time plant(s) and the corresponding Exploded time plant(s) are subsequently used to develop observer(s) and controller(s) for Time condition models.
Recommended Citation
Thumu, Prashanth, "TIME CONDITION SYSTEMS" (2005). University of Kentucky Master's Theses. 374.
https://uknowledge.uky.edu/gradschool_theses/374
