NDLI: Deadlock control policy for a class of automated manufacturing systems with key resources

Content Provider	IEEE Xplore Digital Library
Author	Huixia Liu Weimin Wu
Copyright Year	2015
Description	Author affiliation: State Key Lab. of Ind. Control Technol., Zhejiang Univ., Hangzhou, China (Huixia Liu; Weimin Wu)
Abstract	For automated manufacturing systems (AMSs) without center resources that are one-unit resources shared by two or more maximal perfect resource transition circuits, the optimal Petri net-based polynomial complexity deadlock avoidance policies are synthesized in our previous work. Based on Petri net models of AMSs, this work focuses on the deadlock control problem for AMSs with center resources. First, the concepts of key resources and key transitions are presented. It can prove that key transitions can bring AMSs with key resources into secondary-deadlock, i.e. the controlled Petri nets of AMSs with key resources are not live. Second, for a class of AMSs with key resources, secondary-deadlock can be characterized by maximal perfect control transition circuits (MPCT-circuits) that are saturated at a reachable marking of the controlled system. Then, by adding a control place and related arcs to each MPCT-circuit, secondary-deadlock can be prevented. Thereby, a deadlock control policy for a class of AMSs with center resources is synthesized. Finally, a few examples are provided to demonstrate the presented policy and used to compare them with the state-of-the-art methods.
Starting Page	486
Ending Page	491
File Size	556194
Page Count	6
File Format	PDF
ISBN	9781479980697
DOI	10.1109/ICNSC.2015.7116085
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-04-09
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Petri nets System recovery Manufacturing systems Firing Fires Polynomials Complexity theory Petri net Automated manufacturing systems deadlock control
Content Type	Text
Resource Type	Article

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