Based on the routing algorithm presented in our previous papers [3, 4], we propose two scheduling strategies in this report to schedule a large number of AGVs concurrently in a mesh-like path topology. One strategy is pipelined scheduling, the other one is serial scheduling. By comparing both methods, we obtain certain conditions for ensuring a high system… (More)
AGV systems are now becoming widely used in automatic material handling systems. One of the issues arising in applications is routing. This paper presents a bi-directional path layout and an algorithm for routing AGVs without conflicts. Mathematical relationships among certain key parameters of path and vehicle are derived to minimize the space requirements… (More)
Automated Guided Vehicle (AGV) systems offer flexibility and automation required by Flexible Manufacturing Systems (FMS). Previous research on AGV systems mainly focuses on the performance of the task completion time and the AGV utilization in dispatching and routing. However, as energy shortage and pollution to environment become major concerns and the… (More)
In this paper, we study the uniqueness problem of nonlinear differential polynomials of meromorphic functions that share one small function a(z).
Based on the algorithms which could route AGVs without conflicts in a linear path [1, 2, 7, 10] and in a mesh-like path topology [4, 6], in this report, we propose an realistic scheduling application in a container terminal as a case study in which both routing methods are applied together. A high degree of concurrency is obtained during the procedure of… (More)