Modeling and Online Scheduling of Flexible Manufacturing Systems Using Stochastic Petri Nets

  • Authors:
  • Itsuo Hatono;Keiichi Yamagata;Hiroyuki Tamura

  • Affiliations:
  • Osaka Univ., Osaka, Japan;Osaka Univ., Osaka, Japan;Osaka Univ., Osaka, Japan

  • Venue:
  • IEEE Transactions on Software Engineering
  • Year:
  • 1991

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Abstract

The authors discuss the modeling of flexible manufacturing systems (FMSs) under uncertainty and evaluate a rule base for online scheduling. To represent uncertain events in an FMS, such as failure of machine tools, repair time, and processing time, they develop continuous-time and discrete-time stochastic Petri nets with hierarchical structures for constructing the FMS model. For obtaining an efficient schedule for the FMS with an online real-time basis, they construct a rule base and evaluate its performance using the FMS simulation system proposed.