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A Dispatching Rule Considering Machine Utilization and Throughput under Finite Buffer Capacity  

Kim, Jong-Hwa (Department of Industrial Engineering, Konkuk University)
Cha, Sang-Soo (Hynix Semiconductor)
Publication Information
IE interfaces / v.15, no.3, 2002 , pp. 316-324 More about this Journal
Abstract
Automated Guided Vehicles are widely used as an essential material handling system for FMS to provide flexibility and efficiency. We suggest a new dispatching rule based on priority function which considers urgency and empty vehicle travel time under finite buffer capacity. We evaluate the performance of the proposed rule by comparing the performance of Shortest Travel Time/Distance(STT/D) rule in terms of machine utilization, throughput and WIP level using simulation. The simulation results show that the suggested dispatching rule is robust and provides better machine utilization, throughput with comparable WIP level compared to STT/D rule.
Keywords
dispatching rule; finite buffer capacity; AGVS; WIP; locking; machine utilization;
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