Development of a Crane System for High Speed Transportation in Container Terminal

In the control of a container crane system, the traversing time of the trolley must be reduced as much as possible and the swing of the grab must be stopped at the end point. For these requirements, usually the traversing interval is divided into three parts such as the accelerating interval, the constant speed interval and the decelerating interval, Since the container crane system used in the general industrial fields adopts single trolley, these requirements can not be satisfied so far easily. In this paper, to satisfy those requirements and to avoid the problem controlled by the separation of the traversing interval, a crane system with two trolleys is proposed and the utility of the proposed crane is demonstrated through the experimental results.