Adding two level supervisory control in the hybrid Petri net methodology for production systemsAdding two level supervisory control in the hybrid Petri net methodology for production systems Δημοσίευση σε Συνέδριο Conference Publication 2015-11-142009enThis work extends the hybrid Petri net (HPN) methodology to study multi-operational production systems, by adding two level supervisory control. In the controller implemented, the first control level refers to the internal function of the models of the fundamental subsystems while the second one describes the interaction between them while forming the overall system model. The supervisory control is implemented with Hybrid Petri nets and is added to the structure of the model, so that it's communication and cooperation with the model is faster and more accurate. This comprises one of the first efforts to apply supervisory control concepts in continuous or Hybrid Petri nets.http://creativecommons.org/licenses/by/4.0/1090-109517th Mediterranean Conference on Control and Automation Tsinarakis Georgios Τσιναρακης Γεωργιος Tsourveloudis Nikolaos Τσουρβελουδης Νικολαος Institute of Electrical and Electronics Engineers Production engineering research production engineering research