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Title:Coordination control of flexible manufacturing systems
Author(s):Menon, Satheesh R.
Doctoral Committee Chair(s):Kapoor, Shiv G.
Department / Program:Engineering, Industrial
Engineering, Mechanical
Discipline:Engineering, Industrial
Engineering, Mechanical
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Industrial
Engineering, Mechanical
Abstract:The approach being developed in this research is one of the first attempts to develop a model driven system for coordination control of Flexible Manufacturing Systems (FMSs).
In the first part of the research effort, the structure and activities of the FMS are modeled using a Colored Petri Net based system. This approach has the advantage of being able to model the concurrency inherent in the system. It provides a method for encoding the system state, state transitions and the feasible transitions at any given state. Further structural analysis (for detecting conflicting actions, deadlocks which might occur during operation, etc.) can be performed.
The second part of the work addresses the problem of implementing and testing the behavior of existing dynamic scheduling approaches in simulations of realistic situations. A simulation architecture has been proposed and performance evaluation has been carried out for establishing the correctness of the model, stability of the system from a structural (deadlocks) and temporal (boundedness of backlogs) point of view, and for collection of statistics for performance measures such as machine and robot utilizations, average production rates, average wait times and idle times of resources. A real-time implementation architecture for the coordination controller has also been developed and implemented in a software simulated environment.
Given the current technology of FMS control, the model-driven colored Petri net-based approach promises to develop a very flexible control environment. (Abstract shortened with permission of author.)
Issue Date:1990
Rights Information:Copyright 1990 Menon, Satheesh R.
Date Available in IDEALS:2011-05-07
Identifier in Online Catalog:AAI9026268
OCLC Identifier:(UMI)AAI9026268

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