It is shown that a class of flexible manufacturing cells can be conveniently modeled and evaluated by timed Petri nets. For simple schedules, the modeling nets are covered by conflict–free invariant subnets, so the performance of the model is determined by the performance of its subnets. For composite schedules, the invariant subnets are free-choice, so a more elaborate approach to evaluating the performance of the model must be used.
Composite schedules of manufacturing cells and their timed Petri net models 2991 are quite satisfactory [2]. In particular, the throughput (or the cycle time) of a timed net model can easily be determined from the structure of a net [7]. This paper presents a systematic method of
The aim of this survey is to introduce Computer science/Petri nets specialists to the basic system level issues brought up by the development of Flexible Manufacturing and how Petri nets are used to aid the production engineers in their work. After some terminology concerning pro
Recently, due to integration requirements, manufacturing industry is faced with the problem of controlling, monitoring, optimizing and supporting business and production processes. Among methods and techniques dealing with workflow management, those allowing a correct flexibility
− This paper presents an approach to model and optimize the activities of a manufacturing workstation based on a Petri structure. To model the workstation activities a comprehensive hierarchical task decomposition consistent with manufacturing control requirements is followed. We
The objective of this work is to propose an approach based on a p-time Petri net model with hybrid resources to solve the real time scheduling problem of Workflow Management Systems. The proposed approach uses an activity diagram to show the main activities of the system and the
Parallel and distributed simulation techniques are consolidating as a potentially eeective way of improving elapsed time for discrete event simulation experiments of large system models. The common aim to all the approaches is to divide a single simulation program into logical pr