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CRANE CONTROL SYSTEM AND CRANE CONTROL METHOD

  • US 20200130964A1
  • Filed: 03/16/2018
  • Published: 04/30/2020
  • Est. Priority Date: 06/29/2017
  • Status: Active Grant
First Claim
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1. A crane control system for controlling a crane that includes a leg structure standing on a quay,a girder part supported on the leg structure and having one end projecting to a sea side from the structure and another end projecting to a land side from the structure,a relay mounting platform which is configured to be movable in at least one of a vertical direction and an extending direction of the girder part at a center portion of the girder part in the extending direction and on which a container is temporarily mounted,a land-side cargo handling device which performs container handling between the relay mounting platform and a transportation vehicle stopped at a vehicle stop position under the other end of the girder part, anda sea-side cargo handling device which performs container handling between the relay mounting platform and a designated cargo handling position on a container ship moored under the one end of the girder part,wherein the crane control system comprises:

  • a position acquisition device which acquires current positions of the land-side cargo handling device, the sea-side cargo handling device, and the transportation vehicle; and

    a control device which is connected to the sea-side cargo handling device, the land-side cargo handling device, the relay mounting platform, and the position acquisition device,the vehicle stop position and the cargo handling position have been set in the control device in advance, andthe crane control system is configured such that when the control device predicts that a standby time will occur in a container handling operation by one cargo handling device among the land-side cargo handling device and the sea-side cargo handling device based on the set vehicle stop position, the set cargo handling position, and the current positions of the land-side cargo handling device, the sea-side cargo handling device, and the transportation vehicle acquired by the position acquisition device, the control device performs control that moves the relay mounting platform to a position which equalizes a cycle time of the container handling operation by the one cargo handling device including the predicted standby time and a cycle time of the container handling operation by the other cargo handling device with each other.

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