A robust adaptive scheduler for an intelligent workstation controller
- 1 April 1993
- journal article
- research article
- Published by Informa UK Limited in International Journal of Production Research
- Vol. 31 (4), 771-789
- https://doi.org/10.1080/00207549308956756
Abstract
A shop floor control system (SFCS) consisting of three hierarchical control levels (shop, workstation, and equipment) is described. Each controller plans, schedules, and executes the activities necessary to process an order. An intelligent workstation controller (IWC), which is a part of the SFCS, is described in detail. The 1WC receives information such as part type and quantity, part routeing specifications, and process plans from the shop level controller and coordinates production activities. The IWC performs three main functions—planning, scheduling, and execution in real-time in order to ensure completion of jobs assigned by the shop controller. The focus of this paper is to develop a robust adaptive scheduler to support the IWC which fits within the functional SFCS architecture. The objectives of this paper are: (1) to develop a neural network model that generates several part dispatching strategies based on workstation status; (2) to develop a mutti-pass simulator that evaluates the generated strategies and selects the best strategy to maximize system efficiency; and (3) to compare the efficiency of the scheduling function with other single-pass strategies with respect to several performance criteria.Keywords
This publication has 20 references indexed in Scilit:
- The use of neural networks in determining operational policies for manufacturing systemsJournal of Manufacturing Systems, 1991
- Scheduling approaches for random job shop flexible manufacturing systemsInternational Journal of Production Research, 1991
- A functional approach to designing architectures for CIMIEEE Transactions on Systems, Man, and Cybernetics, 1989
- A real-time production scheduler for a stochastic manufacturing environmentInternational Journal of Computer Integrated Manufacturing, 1988
- Experimental investigation of flexible manufacturing system scheduling decision rulesInternational Journal of Production Research, 1987
- A proposed hierarchical control model for automated manufacturing systemsJournal of Manufacturing Systems, 1986
- A comparative study of priority dispatching rules in a hybrid assembly/job shopInternational Journal of Production Research, 1984
- Job shop scheduling—A systematic approachJournal of Manufacturing Systems, 1982
- A state-of-the-art survey of dispatching rules for manufacturing job shop operationsInternational Journal of Production Research, 1982
- A Review of Production SchedulingOperations Research, 1981