Petri net applications

This article presents the use of Petri net (RdP) techniques to help production engineers in their work. After a general presentation, the first part deals with the modeling, dimensioning and performance evaluation of a job-shop type manufacturing workshop, using a concrete case study. The second part presents an industrial case study taken from glass production, and describes the implementation of a production planning system.

Petri nets, invented by Carl Adam Petri in 1962, are still the subject of a great deal of research in many countries. This is due to the elegant mathematical theory underlying this graphical modeling technique, the theoretical foundations of which are presented in the article "Tools for modeling sequential automation. Petri nets . Despite this effervescence in the research field, few industrial-scale applications have seen the light of day. This is partly due to the lack of international standardization of Petri nets, unlike grafcet. This disadvantage is about to be rectified, however, as the ISO 15909 standard for high-level Petri nets is currently under development. The aim of this article is to present Petri net applications in an industrial context. The rest of the introduction summarizes the main types of Petri net applications, and places the two case studies that follow in this context.