Title :
Approximating State of DES Using Fuzzy Timed Petri Nets
Author :
González-Castolo, Juan Carlos ; López-Mellado, Ernesto
Author_Institution :
CINVES-TAV Unidad Guadalajara, Zapopan
Abstract :
This paper addresses state estimation of discrete event systems (DES) modeled by fuzzy timed Petri nets (FTPN). A definition of FTPN in which fuzzy sets, associated to places, represent the ending time uncertainty of activities is presented; then the fuzzy state equation composed by a set of matrix expressions is developed, allowing computing the marking evolution of DES exhibiting cyclic behavior. A method for approximating the marking of strongly connected state machines is proposed.
Keywords :
Petri nets; approximation theory; discrete event systems; fuzzy set theory; matrix algebra; uncertain systems; discrete event systems; ending time uncertainty; fuzzy timed Petri nets; marking approximation; marking evolution; matrix expressions; state estimation; Automation; Discrete event systems; Equations; Fuzzy sets; Fuzzy systems; Observers; Petri nets; State estimation; USA Councils; Uncertainty;
Conference_Titel :
Automation Science and Engineering, 2007. CASE 2007. IEEE International Conference on
Conference_Location :
Scottsdale, AZ
Print_ISBN :
978-1-4244-1154-2
Electronic_ISBN :
978-1-4244-1154-2
DOI :
10.1109/COASE.2007.4341788
