TY - JOUR
T1 - Modeling and control of workstation level information flow in FMS using modified Petri nets
AU - Yan, Pingtao
AU - Zhou, Mengchu
AU - Hu, Baosheng
AU - Feng, Zuren
N1 - Funding Information:
The authors would like to acknowledge the partial support of NSF under grant No. DMI-9410386 and the support and use of facility provided by Jinan First Machine Tool Factory of China.
PY - 1999
Y1 - 1999
N2 - A flexible manufacturing system (FMS) has a traditional structure of three levels: cell, workstation, and equipment. The workstation level plays an important role in the overall performance of the FMS. This paper focuses on modeling and control of the FMS workstation level information flow. In order to have a unified workstation level system structure, front-end interfaces are introduced as a standard communication medium between the workstation level and the equipment level. A detailed information flow analysis is then carried out on the workstation level. For modeling purposes, a modified Petri net is proposed with its increased modeling capability over an ordinary Petri net. It associates data structures with places and programs with transitions. Finally, the modified Petri net is used to model and control the FMS workstation level information flow. The designed control system has been implemented in a real manufacturing factory with satisfactory performance.
AB - A flexible manufacturing system (FMS) has a traditional structure of three levels: cell, workstation, and equipment. The workstation level plays an important role in the overall performance of the FMS. This paper focuses on modeling and control of the FMS workstation level information flow. In order to have a unified workstation level system structure, front-end interfaces are introduced as a standard communication medium between the workstation level and the equipment level. A detailed information flow analysis is then carried out on the workstation level. For modeling purposes, a modified Petri net is proposed with its increased modeling capability over an ordinary Petri net. It associates data structures with places and programs with transitions. Finally, the modified Petri net is used to model and control the FMS workstation level information flow. The designed control system has been implemented in a real manufacturing factory with satisfactory performance.
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U2 - 10.1023/A:1008912805440
DO - 10.1023/A:1008912805440
M3 - Article
AN - SCOPUS:0033354580
SN - 0956-5515
VL - 10
SP - 557
EP - 568
JO - Journal of Intelligent Manufacturing
JF - Journal of Intelligent Manufacturing
IS - 6
ER -