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題名:	A control policy for γ-nets without reachability analysis and siphon enumeration
作者:	Wu, W.;Chao, D.Y.;Yu, Fang 郁方
貢獻者:	資管系
關鍵詞:	Control policy;Deadlock prevention;Optimal controller;Permissive controllers;Reachability analysis;Research topics;Sequential process;Flexible manufacturing systems;Petri nets;Siphons;Controllers
日期:	2013
上傳時間:	2015-04-16 17:36:35 (UTC+8)
摘要:	Synthesizing maximally permissive controllers with fewest monitors has been a popular research topic. Current optimal controllers for large flexible manufacturing systems (FMS) require costly time consuming reachability analysis. Our previous work shows that among all n-dependent siphons, only one siphon (whose unmarked state follows specific token distribution) needs to be controlled. This greatly simplifies the synthesis as well as minimizes the number of monitors required while making the controlled net nearly maximally permissive. However, some live states may get lost. To reach more live states, the controller regions must be refined to be less affected or disturbed by the monitors and their controlled arcs. We observe that the markings of all the resulting controller regions follow a simple pattern. Based on this pattern of unmarked siphons, this paper further proposes a maximally permissive control policy for a subclass of S3PR (Systems of Simple Sequential Processes with Resources). © 2013 IEEE.
關聯:	IEEE International Conference on Automation Science and Engineering,2013, 論文編號 6653897, Pages 1133-1138, Madison, WI; United States; 17 August 2013 到 20 August 2013; 代碼 101740 10.1109/CoASE.2013.6653897
資料類型:	conference
顯示於類別:	[資訊管理學系] 會議論文

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