Scheduling Problem of Unidirectional Material Handling System with Short-cut

Authors

Juntao Li, 1. College of Engineering Science and Technology, Shanghai Ocean University Shanghai, Shanghai 201306, China;;
Kun Xia, 1. College of Engineering Science and Technology, Shanghai Ocean University Shanghai, Shanghai 201306, China;;
Kise Hiroshi, 2. Kyoto Institute of Technology, Kyoto, 601-8585, Japan;

Abstract

Abstract: Unidirectional circulation-type material handling system on a single loop with a shortcut is a typical and basic unit in a flexible manufacturing system or logistics system. It is widely used in semiconductor wafer fabrication system. Superposition efficiency of the basic unit often determines the one of the whole system. Different scheduling rules impact the interference between AGVs and then have an important effect on the efficiency of the whole system. To decrease the interference and improve performance of the system, a mathematical model of this system was made, analyzing this system by simulation and comparing the merits and demerits under the different scheduling rules. Simulation results show that the Order rule is better than the Random rule under the condition of same processing time. Under the condition of different processing time, the SPT-Order rule not only makes congestion (interference time) decrease but also achieves the optimal performance.

Recommended Citation

Li, Juntao; Xia, Kun; and Hiroshi, Kise (2020) "Scheduling Problem of Unidirectional Material Handling System with Short-cut," Journal of System Simulation: Vol. 28: Iss. 7, Article 11.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss7/11

First Page

1561

Revised Date

2015-07-07

DOI Link

https://doi.org/

Last Page

1567

CLC

TP391.9

Recommended Citation

Li Juntao, Xia Kun, Kise Hiroshi. Scheduling Problem of Unidirectional Material Handling System with Short-cut[J]. Journal of System Simulation, 2016, 28(7): 1561-1567.