Patent ID: 11932517
Assignee: LIEBHERR-WERK BIBERACH GMBH
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 2:
3. The crane of claim 1, wherein a trolley is travelably supported along the crane boom, wherein the hoist rope runs off from the trolley, wherein the electromagnetic radio modules further comprise at least three radio modules attached to the trolley such that the at least three radio modules are arranged at corners of a triangle in a vertical plan view of the trolley, wherein each of the at least three radio modules is configured to exchange signals with the at least the radio module, and wherein a position of the load hook relative to the trolley, including a horizontal offset of the load hook with respect to the trolley, is determinable via the electronic evaluator from radio signals exchanged between the at least one radio module and the at least three radio modules.