A Petri Net Based Deadlock Avoidance Controller for Manufacturing Systems with Multiple Resource Service
Based on system Petri net models, this paper addresses deadlock problems in automated manufacturing systems with multiple resource service. New concepts of cyclic structures and their saturation are presented. These concepts facilitate the development of the characterization for the liveness of Petri nets modelling manufacturing systems and deadlock avoidance Petri net controller. Deadlocks are characterized as saturated cyclic structures. By adding a control place and some related arcs to each elementary maximal cyclic structure so that the system cannot reach any saturated markings, deadlock can be successfully prevented. An algorithm for computing all elementary maximal cyclic structures is presented.
Keyi Xing Feng Tian Junmin Li Shengli Qu
The State Key Laboratory for Manufacturing System Engineering, and Systems Engineering Institute Xi Department of Applied mathematics Department of Automatic Control,Xidian University Xian, 710071, China
国际会议
青岛
英文
2006-07-21(万方平台首次上网日期,不代表论文的发表时间)