Patent ID: 11926511
Assignee: TADANO LTD.
Field: Control (Instruments)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A remote operation terminal of a mobile crane including a suspended load camera at a tip of a boom, the remote operation terminal comprising:
an image acquisition unit that acquires an image captured by the suspended load camera;
a display unit that displays the image acquired by the image acquisition unit;
an image rotation operation unit that receives an image rotation operation by an operator and rotates the image displayed on the display unit so as to correspond to the image rotation operation;
a crane operation unit that receives a crane moving operation by the operator and generates a control signal for remotely operating the mobile crane on the basis of the crane moving operation; and
a control unit that is configured to be communicable with a control device of the mobile crane and controls each unit of the remote operation terminal,
wherein when the crane moving operation is performed, the control unit associates a coordinate system of a horizontal plane of the image displayed on the display unit with an operation direction of the crane moving operation, and generates the control signal so that the tip of the boom displayed on the display unit horizontally moves in a direction corresponding to the operation direction of the crane moving operation, and
when the image rotation operation is performed while the crane moving operation is performed, the control unit rotates the image displayed on the display unit by a rotation amount according to an operation amount of the image rotation operation in an operation direction of the image rotation operation, and rotates the coordinate system by the rotation amount in a direction opposite to a rotation direction of the image to correct a moving direction of the tip of the boom determined on the basis of the crane moving operation.