실시간 위치기반 컨테이너 야드 트랙터의 이동거리 최적화를 통한 생산성 향상

Abstract

A container terminal productivity is maximized by a minimized time for processing containers. So, we have been elevated the container terminal productivity through an improvement of computing system, but there are a limitation because of problems for transportation management and method. A Y/T(Yard Tractor), which is a representative transportation, is able to do only one process, loading or unloading, at one time. So if the Y/T can do loading and unloading step by step at a same time, the processing time would be shortened. In this paper, we proposed an effective operating process of Y/T Multi-Cycle System by applying RTLS(Real Time Location System) to Y/T in order to improve the process of loading and unloading at the container terminal. For this, we described Multi-Cycle System which consists of a real time location of Y/T based on RTLS, an indicating of Y/T location in real time with GIS technology, and an algorithm (Dijkstra's algorithm) of the shortest distance. And we used the system in container terminal process and could improve the container terminal productivity. As the result of simulation for the proposed system in this paper, we could verify that 16% of driving distance was reduced compared with the existing rate and 15.8% of C/C productivity was improved compared with the existing rate. Consequently, we could find out the container performance is maximized.