This paper deals with a distributed simulation system to evaluate distributed realtime scheduling systems. To simulate various kinds of hybrid systems of distributed and centralized architectures, the distributed simulator in this paper consists of three kinds of schedulers: factory level scheduler, shop level scheduler, and equipment level scheduler. Moreover, the distributed real-time scheduling system is implemented as a virtual production system. Finally, we show the simulation results of the distributed real-time scheduling systems to evaluate the dispatching rules and the overhead for real-time scheduling.
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