A Novel Controller Placement Using Petri-Nets for SDNs

A Fuzzy Approach to Sequential Failure Analysis Using Petri nets

In highly competitive industrial market, the concept of failure analysis is an unavoidable fact in complex industrial systems. Reliability of such systems not only depends on the reliability of each element of these systems, but also depends on occurrence of sequence of failures. In this paper, a novel approach to sequential failure analysis is proposed which is based upon fuzzy logic and the c...

Modeling a Car Safety Controller using Fluid Stochastic Petri Nets

This extended abstract investigates the performability features of a car safety controller operating in a road tunnel. The controller issues alarms when the distance between two consecutive vehicles is lower than a given limit. We propose to model the controller by Fluid Stochastic Petri Net (FSPN). Several performance indices are evaluated in normal and abnormal conditions.

Implementation of Petri Nets Based Controller using SFC

This paper presents a method for implementing a controller synthesized by PN-based SCT theory. Despite the great acceptance of SCT in controller design, there are problems with its practical implementation. Sequential Function Chart, as an international standard programming language, is used for implementing PN-based controllers. One problem in the implementation step is the occurrence of simul...

Controller Synthesis By Petri Nets Modeling

In this paper, we present two different methods for the synthesis of a simplified controller using Petri Nets. The supervisory control theory presented by Ramadge and Wonham is adapted to Petri nets modeling. Uncontrollable transitions in discrete event systems are the cause of forbidden states in supervisory control. This paper concerns the problem of forbidden states in safe Petri Net. We pre...

Supervisory controller design for timed-place Petri nets