engleski

Scheduling Model of an Automated Guided Vehicle System in Seaports

Automated guided vehicles (AGVs) are now becoming popular mode of container transport in seaport terminals. These unmanned vehicles are used in terminal operations for transfer containers between ships and storage locations on the shore. In the past few decades, much research has been devoted to the technology of AGV systems and rapid progress has been witnessed. As one of the enabling technologies, scheduling of AGVs has attracted considerable attention. The aim of AGV scheduling is to dispatch a set of AGVs to improve the productivity of a system and reduce delay in a batch of pickup/drop-off jobs under certain constraints such as deadlines, priority, etc. The final goals are normally related to optimization of processing time or minimization the number of AGVs involved while maintaining the system throughput, or minimization the total travel time of all vehicles. To maintain competitive advantage and increase the efficiency of the container terminal it is necessary to determine the appropriate number of AGVs to deploy, and formulate good dispatching strategies for these AGVs. This paper first considers to introducing what AGV and then gives a Petri net model which represents the transportation of containers from pick-up locations to delivery locations. In addition to this proposed genetic algorithm as a solving methodology that constructs an AGV dispatch schedule is introduced.

AGV ; AGV transportation system ; scheduling ; optimization

nije evidentirano