Crane and device for controlling same
AssigneeLiebherr-Werk Biberach GmbH
InventorsMarkus HOFMEISTER, Tobias ENGLERT
Life of this patent
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Abstract
The invention relates to a crane, in particular a rotary tower crane (1), comprising a crane boom (3), from which runs a hoisting cable (6) connected to the load hook (7), as well as comprising a load hook positioning device (8) for determining the load hook position, wherein the load hook positioning device (8) has at least three electromagnetic radio modules (9) exchanging radio signals with one another, of which at least one radio module is attached to the load hook and at least two further radio modules are attached to the crane structure and/or in the environment of the crane in a spaced apart manner, as well as an electronic evaluation device for evaluating the radio signals and determining the position of the load hook from the radio signals.
Claims20
A crane having a crane boom from which a hoist rope connected to a load hook runs off, and having a load hook position determiner for determining a load hook position of the load hook, wherein the load hook position determiner has electromagnetic radio modules configured to exchange radio signals with one another, wherein the electromagnetic radio modules comprise at least one radio module attached to the load hook and at least two radio modules spaced apart from one another and attached to the crane and/or in a crane environment, wherein the at least one radio module is configured to exchange radio signals with each of the at least two radio modules, wherein the at least one radio module has an electronic evaluator, and wherein the load hook position is determinable via the electronic evaluator from radio signals exchanged between the at least one radio module and the at least two radio modules.
A method of controlling a crane having a crane boom from which a hoist rope connected to a load hook runs off, and having a load hook position determiner for determining a load hook position of the load hook, wherein radio signals are exchanged between at least one radio module attached to the load hook and radio modules attached to the crane, and wherein the load hook position is determined by an electronic evaluator from the radio signals that are exchanged between the at least one radio module attached to the load hook and the radio modules attached to the crane.
A device for controlling a crane having a crane boom from which a hoist rope connected to a load hook runs off, and having a load hook position determiner for determining a load hook position of the load hook, wherein radio signals are exchangeable between at least one radio module attached to the load hook and radio modules attached to the crane, and wherein the load hook position is determinable via an electronic evaluator from radio signals that are exchanged between the at least one radio module attached to the load hook and the radio modules attached to the crane.
Dependencies are inferred from the claim text.