Being the yard crane operational method of operating the plural yard cranes which the yard crane, the

摘要

PROBLEM TO BE SOLVED: To provide a yard crane for reducing the amount of work of an operator, and improving the cargo handling efficiency by adequately switching the automated work to the work operated by the operator, and an operating method therefor, an operation device to operate the yard crane, and an operation system to operate the yard crane.;SOLUTION: In the yard crane operation system comprising yard cranes 10, a control building 30 and a yard crane operation device 40 to control the operation of the yard cranes 10, an image on a monitor 42 provided on the yard crane operation device 40 is automatically switched based on the operational situation of the plurality of yard cranes 10.;COPYRIGHT: (C)2004,JPO