By Topic

Supervisory control of timed discrete-event systems under partial observation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
F. Lin ; Dept. of Electr. & Comput. Eng., Wayne State Univ., Detroit, MI, USA ; W. M. Wonham

This paper extends the authors' previous work on observability of discrete-event systems by taking time into consideration. In a timed discrete-event system, events must occur within their respective lower and upper time bounds. A supervisor can disable, enable, or force some events to achieve a given control objective. The authors assume that the supervisor does not observe all events, which is often the case in practice. The authors generalize the concept of observability to timed discrete-event systems and show that it characterizes the existence condition for a supervisor. The authors also generalize normality, a stronger version of observability, to timed discrete-event systems, which has nice properties that are absent in observability. The authors then derive conditions under which observability and normality are equivalent. The authors propose two methods to synthesize a supervisor, a direct approach and an indirect approach. An example is given to illustrate the results

Published in:

IEEE Transactions on Automatic Control  (Volume:40 ,  Issue: 3 )