Patent ID: 8777027

Claim:
A mobile crane comprising: a telescopic boom having a hinged section; at least one telescopic section that can be telescoped out of the hinged section; a detection device configured to detect at least one pre-defined state or position within the mobile crane, the detection device comprising at least one inductively operating transponder configured to transmit information to at least one receiver unit, the at least one receiver unit configured to sense the at least one inductively operating transponder; a control device configured to control a crane actuator, the control device moving a crane element in dependence on a signal of the at least one receiver unit; and a databus configured to transmit the information from the at least one receiver unit to the control device, wherein the at least one inductively operating transponder includes a transponder fixedly installed in the receiver unit and configured to transmit a pre-determined function signal for continuous monitoring of a functioning of the detection device.