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政大機構典藏 > 商學院 > 資訊管理學系 > 期刊論文 > Item 140.119/61554

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Title:	Weighted Characteristic P-vector and Deadlock Control of WS3PR
Authors:	趙玉 CHAO,DANIEL YUH
Contributors:	資管系
Keywords:	flexible manufacturing systems;deadlock control;Petri nets;siphons;elementary siphons
Date:	2010.07
Issue Date:	2013-11-11 09:38:23 (UTC+8)
Abstract:	Current deadlock control approaches for S^3PGR^2 (systems of simple sequential processes with general resources requirement) suffer from incorrect or restricted liveness characterization based on the concept of deadly marked siphons (DMS) and max-controlled siphons. Dead transitions may exist when there are no DMS and the net model is in livelock states. A new liveness condition is developed based on the so-called max^*-controlled siphons to replace that of the restrictive max-controlled siphons. A deadlock control policy is further proposed for WS^3PR (weighted S^3PR (systems of simple sequential processes with resources)) by adding control nodes and arcs for elementary siphons only, reducing significantly the number of monitors compared with existing methods. A counter example is shown to indicate that Li`s characteristic P-vector must be weighted. The controlled model for WS^3PR is proposed and its liveness property is proved.
Relation:	Journal of Information Science and Engineering, 26(3), 1121-1136
Data Type:	article
Appears in Collections:	[資訊管理學系] 期刊論文

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