Identification of Stochastic Timed Discrete Event Systems with st-IPN

Abstract EN

This paper presents a method for the identification of stochastic timed discrete event systems, based on the analysis of the behavior of the input and output signals, arranged in a timeline.

To achieve this goal stochastic timed interpreted Petri nets are defined.

These nets link timed discrete event systems modelling with stochastic time modelling.

The procedure starts with the observation of the input/output signals; these signals are converted into events, so that the sequence of events is the observed language.

This language arrives to an identifier that builds a stochastic timed interpreted Petri net which generates the same language.

The identified model is a deterministic generator of the observed language.

The identification method also includes an algorithm that determines when the identification process is over.