Mobile crane

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 first transponder arranged at a telescoping part of a stabilizer plate, and the at least one receiver unit includes a corresponding first receiver unit arranged at a fixed part of the mobile crane;
• wherein the at least one inductively operating transponder includes a plurality of transponders arranged at each stabilizer plate at pre-determined positions, such that an extension of each stabilizer plate can be unambiguously determined, wherein determining the position of each stabilizer plate measures whether that stabilizer plate is under load.

A crane comprising:

• a detection device configured to detect at least one pre-defined state or position within the crane, the detection device comprising a first inductively operating transponder arranged at a first position on a movable part of a crane actuator and a second inductively operating transponder arranged at a second position on the movable part of the crane actuator, the first and second inductively operating transponders configured to transmit information to at least one receiver unit arranged on a fixed part of the crane actuator, the at least one receiver unit configured to sense the first and second inductively operating transponders;
• a control device configured to control the 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 each inductively operating transponder is an RFID transponder configured to transmit back the information stored on it as a modulated RF signal. and wherein each receiver unit is an RFID reader comprising a digital electronic system that controls the RFID transponder to transmit back the information.

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 an extension of a stabilizer plate of the mobile crane, the detection device comprising a first inductively operating transponder arranged at a first position on a telescoping part of the stabilizer plate and a second inductively operating transponder arranged at a second position on the telescoping part of the stabilizer plate, the first and second inductively operating transponders configured to transmit information to at least one receiver unit arranged on a fixed part of the stabilizer plate, the at least one receiver unit configured to sense the first and second inductively operating transponders;
• a control device configured to control a crane actuator, the control device moving the telescoping part of the stabilizer plate relative to the fixed part of the stabilizer plate 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 each inductively operating transponder is an RFID transponder configured to transmit back the information stored on it as a modulated RF signal, and wherein each unit is an RFID reader comprising a digital electronic system that controls the RFID transponder to transmit back the information.

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 first transponder arranged at a telescoping part of a stabilizer plate, and the at least one receiver unit includes a corresponding first receiver unit arranged at a fixed part of the mobile crane;
• wherein the at least one inductively operating transponder further includes a second, mobile transponder, and the at least one receiver unit further includes a corresponding second receiver unit, wherein the second receiver unit is arranged at a pre-determined position on the mobile crane in order to detect a safe position of an operator and to release predetermined actions of the mobile crane.

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 first transponder arranged at a telescoping part of a stabilizer plate, and the at least one receiver unit includes a corresponding first receiver unit arranged at a fixed part of the mobile crane;
• wherein the at least one receiver unit further comprises a second receiver unit, and the at least one inductively operating transponder further includes a corresponding second transponder arranged at a ballast weight, and configured to transmit information corresponding to the ballast weight to the second receiver unit, and wherein the second receiver unit is integrated in a region of a chassis of the mobile crane on which the ballast weight can be placed down or integrated in a region of the telescopic boom at which the ballast weight can be suspended.