Mooring device and a method for operating a mooring device

A mooring device, comprising:

• an attachment unit that comprises a contact surface for contacting a surface of an object to be attached and at least one magnet for generating a magnetic field through the contact surface to the object, and
• a control unit for adjusting the magnetic field generated by the at least one magnet,
• a telescopic arm pivotally attached to the attachment unit,
• a first hydraulic cylinder and a second hydraulic cylinder attached to the telescopic arm, and
• means for monitoring linear displacements of the first hydraulic cylinder and the second hydraulic cylinder,
• wherein the control unit is configured, based on the linear displacements, to adjust the magnetic field so that an attachment point on the surface of the object is changeable;
• wherein the control unit is configured, when the attachment unit is attached to the object and at least one of the linear displacements exceeds a first threshold value specific to each hydraulic cylinder, to decrease the magnetic field so that the attachment unit can slide on the surface of the object, and when the attachment unit slides on the surface of the object and the linear displacements fall below a second threshold value specific to each hydraulic cylinder, to increase the magnetic field so that the attachment unit becomes stationary relative to the object.

A mooring device, comprising:

• an attachment unit that comprises a contact surface for contacting a surface of an object to be attached and at least one magnet for generating a magnetic field through the contact surface to the object, and
• a control unit for adjusting the magnetic field generated by the at least one magnet,
• a telescopic arm pivotally attached to the attachment unit,
• a first hydraulic cylinder and a second hydraulic cylinder attached to the telescopic arm, and
• means for monitoring linear displacements of the first hydraulic cylinder and the second hydraulic cylinder,
• wherein the control unit is configured, based on the linear displacements, to adjust the magnetic field so that an attachment point on the surface of the object is changeable;
• wherein the telescopic arm comprises a third hydraulic cylinder, the mooring device comprises means for monitoring a force exerted on the third hydraulic cylinder, and the control unit is configured to adjust the magnetic field based on the force.