A multi-attribute dispatching rule for automated guided vehicle systems

A multi-attribute dispatching rule for automated guided vehicle systems

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Article ID: iaor20022313
Country: United Kingdom
Volume: 39
Issue: 13
Start Page Number: 2817
End Page Number: 2832
Publication Date: Jan 2001
Journal: International Journal of Production Research
Authors: ,
Keywords: automated guided vehicles
Abstract:

This paper considers the dispatching problem associated with operations of automated guided vehicles (AGVs). A multi-attribute dispatching rule for dispatching of an AGV is developed and evaluated. The multi-attribute rule, using the additive weighting method, considers three system attributes concurrently: the remaining space in the outgoing buffer of a workstation, the distance between an idle AGV and a workstation with a job waiting for the vehicle to be serviced, and the remaining space in the input buffer of the destination workstation of a job. A neural network approach is used to obtain dynamically adjusting attribute weights based on the current status of the manufacturing system. Simulation analysis of a job shop is used to compare the multi-attribute dispatching rule with dynamically adjusting attribute weights to the same dispatching rule with fixed attribute weights and to several single attribute rules. Results show that the multi-attribute dispatching rule with the ability to adapt attribute weights to job shop operational conditions provides a better balance among the performance measures used in the study.

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