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作者机构:Xi An Jiao Tong Univ State Key Lab Mfg Syst Engn Xian 710049 Shaanxi Peoples R China Xi An Jiao Tong Univ Syst Engn Inst Xian 710049 Shaanxi Peoples R China Qingdao Univ Inst Complex Sci Qingdao 266071 Shandong Peoples R China Zhejiang Univ State Key Lab Ind Control Technol Hangzhou 310027 Zhejiang Peoples R China Zhejiang Univ Inst Cyber Syst & Control Hangzhou 310027 Zhejiang Peoples R China Xidian Univ Sch Electromech Engn Xian 710071 Shaanxi Peoples R China
出 版 物:《IET CONTROL THEORY AND APPLICATIONS》 (IET Control Theory Appl.)
年 卷 期:2016年第10卷第8期
页 面:939-946页
核心收录:
学科分类:0808[工学-电气工程] 08[工学] 0804[工学-仪器科学与技术] 0811[工学-控制科学与工程]
基 金:National Natural Science Foundation of China [61374066, 61573265, 61402216] China Postdoctoral Science Foundation [2015M571894]
主 题:Manufacturing processes -- Mathematical models RESEARCH Process optimization Factories -- Equipment & supplies Deadlock prevention (Manufacturing) Manufacturing workstations
摘 要:It is essential to avoid deadlock and blockage in the operation of an automated manufacturing system (AMS) since they cripple a part of the system, if not the whole, and then deteriorate system performance. Though a large number of approaches are developed to resolve this issue, few of them are directly applicable to AMSs with failure-prone resources. This study focuses on the supervision for deadlock avoidance and blockage control in a class of AMSs with multiple unreliable resources, where each resource is a workstation. The authors hope that the system, under the control of a supervisor, can at all time automatically continue producing parts whose processing routes do not contain any of the currently failed workstations. Inspired by the widely known Banker s algorithm and a resource order policy, this study presents a robust supervisory controller that satisfies the above desired requirement. All the evidence shows that authors policy performs better than the original one in terms of permissiveness. Furthermore, an example AMS from existing literature is used to illustrate the effectiveness of authors proposed method.