J4 ›› 2015, Vol. 42 ›› Issue (5): 105-109.doi: 10.3969/j.issn.1001-2400.2015.05.018

• Original Articles • Previous Articles     Next Articles

Method to compute the reachability set of S3PR

ZHANG Xiuyan;ZHONG Chunfu;JIA Jianyuan   

  1. (School of Mechano-electronic Engineering, Xidian Univ., Xi'an  710071, China)
  • Received:2014-04-29 Online:2015-10-20 Published:2015-12-03
  • Contact: ZHANG Xiuyan E-mail:xiuyan0224@126.com

Abstract:

This paper proposes a novel approach to computing the reachability set by using place invariants and strict minimal siphons for S3PR with specific resource places. First, the set of invariant markings is enumerated. Then a necessary and sufficient condition is developed to decide whether a marking is spurious by analyzing the relationship between the number of tokens in the corresponding places of any strict minimal siphon and their bounds. In addition, the spurious markings are calculated. Finally, the reachability set of the net is generated by removing all the spurious markings from the set of invariant markings. Experimental results show the efficiency of the proposed method.

Key words: Petri nets, strict minimal siphons, place invariants, reachability set, deadlock control

CLC Number: 

  • TP271+.8