Simulation-Based Shop Floor Control: Formal Model, Model Generation,
Albert T. Jones, Y J. Son, R A. Wysk
The high cost of control software development and maintenance has been recognized as a significant problem inhibiting CIM solutions. In this paper, a structure and architecture for the rapid realization of a simulation-based real-time shop floor control system for a discrete part manufacturing system is presented. The research focuses on automatic simulation model and execution system generation from a production resource model. In the control architecture considered in this research, part routing information and schedule information is read from external files. An automatic execution model generator (AEMG) has been designed and implemented (in Visual Basic 6.0) for generating a message-based part state graph (MPSG) based shop level execution model. An automatic simulation model generator (ASMG) has been designed and implemented (in Visual Basic 6.0) for generating an Arena simulation model based on a resource model (MS Access 97) and an MPSG based shop level execution model. A commercial finite capacity scheduler, Tempo, has been used to provide schedule information for the Arena simulation model. This research has been implemented and tested for six manufacturing systems, including The Pennsylvania State University CIM lab.
message graphs, process plans, scheduling, shop floor control, simulation, state graphs
, Son, Y.
and Wysk, R.
Simulation-Based Shop Floor Control: Formal Model, Model Generation,, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD
(Accessed June 1, 2023)