On the development of reactive systems
Logics and models of concurrent systems
Real-time computer control (2nd ed.): an introduction
Real-time computer control (2nd ed.): an introduction
Coloured Petri nets: basic concepts, analysis methods and practical use, vol. 2
Coloured Petri nets: basic concepts, analysis methods and practical use, vol. 2
Petri Net Theory and the Modeling of Systems
Petri Net Theory and the Modeling of Systems
Performance Evaluation of Petri nets Centralized Implementation. The Execution Time Controller
Discrete Event Dynamic Systems
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This paper presents a methodology for modeling and hardware implementation of discrete event control systems based on the formalism of Petri nets (PN). The control algorithm is initially specified as an executable PN specification which is subsequently compiled directly into a compact machine code and stored in commercially available programmable read only memory (PROM). As an implementation platform, a programmable Petri net based dedicated discrete event controller is proposed. The scalable architecture of the controller is optimized to process PN constructs of all possible classes. A remarkable feature of the proposed architecture is its ability to handle explicit concurrency. The controller exploits hardware-level parallelism to track multiple tokens (control threads) through the net. The performance of the architecture has been verified and benchmarked on the fabricated integrated circuit (IC) prototype of the controller.