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Erschienen in:
2013 | OriginalPaper | Buchkapitel
Timed Petri Nets
verfasst von : Louchka Popova-Zeugmann
Erschienen in: Time and Petri Nets
Verlag: Springer Berlin Heidelberg
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In this chapter we consider a further important class of time-dependent Petri nets, the Timed Petri nets. In any real system every event takes some amount of time, no matter how small. In Timed Petri nets this fact is incorporated by associating a duration with each transition. To model a real system with a Timed Petri net the duration of a transition is set to the duration of the event or process modeled by this transition. Therefore, in most studies on Timed Petri nets, durations of length zero are not considered, but allowing time durations of certain events to be zero can be very useful for practical reasons. If, for instance, we want to model events of which one has a very small time duration compared with the others, then it might be convenient to set the small duration to zero, in order to avoid using huge values for the durations of the other events. Later on, this simplifies the analysis of the net.