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| The yard/crane automation includes four types as described below. |
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- Loading : the operation to load the containers in the yard on to chassis
- Unloading : the operation to unload the containers on the chassis in the yard
- Marshalling : the operation to marshal the containers in the yard within the yard
- Move : the operation to move only the empty spreader
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| The objectives of an automated crane operation is to improve the container handling efficiency in the yard, and at the same time, be able to cope with natural disturbances (the including solar heat, sunshine, rain, fog and wind) specific to the outdoor environment. The concept of this automatic operation is "Fast", "Accurate" and "Safe". |
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The moving time and the positioning time are shortened due to the greater functionality of the automation part in addition to the increase in the speed and the acceleration/deceleration of each operation including the hoisting, traversing and traveling compared with those of a conventional system.
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The most important point in automatic operation is to prevent the spreader and the suspended container from colliding with containers already stacked even when
traversing and the winding are simultaneously implemented.
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In this system, a stack height detection sensor is installed on the crane in order to automatically detect the stack height, and the shortest moving pass in which the spreader and the suspended container do not collide with the stacked containers in the yard is calculated based on the data. The stacking information on the yard is compared with the sensor's measured value, and safety is ensured by adopting the larger height if there is a difference between the two.
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| A wide range of electronic sensors are installed to achieved stability and accuracy in the movements of cranes and their cargoes. Collisions with adjacent containers are thereby avoided and the activities are accomplished in thesafest way possible |
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| The Crane OCR System automates the process of manually verifying ISO containers loaded and discharged from dockside ship-to-shore gantry cranes. Deployed on over 70 cranes within the US, the Crane OCR System provides unequalled reliability integrating with most any crane manufacturer and PLC available. Read more about the Crane OCR System |
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