The invention relates to a system for central control of one or more cranes including at least one crane and at least one central control station, wherein the crane includes one or multiple image sensors observing a picked-up load, at least part of the crane surroundings and at least part of the crane structure, the crane is connected with the control station for the transmission of the image sensor data via at least one bidirectional communication link, and wherein the control station comprises at least one display element for the visual representation of the received sensor data as well as provides at least one input device for inputting control commands, and the control commands can be transmitted, via the communication link, to one or more crane actuators and/or the crane control for performing crane movements.

System and methods for a DC powered hydraulic system capable of providing control over pressurized hydraulic fluid delivered to directional valves without the need for a PTO and/or a proportional valve. The hydraulic system controls the output from a battery to a direct current hydraulic pump.

System and methods for a DC powered hydraulic system capable of providing control over pressurized hydraulic fluid delivered to directional valves without the need for a PTO and/or a proportional valve. The hydraulic system controls the output from a battery to a direct current hydraulic pump.

An electronic module that dampens torsional oscillation of an object rotating in a horizontal plane in a system that includes a motor control. The electronic module includes a memory that is configured to store a mass-dependent value of the object or of rotating parts of the system, a housing, and a processor that is positioned within the housing. The processor is configured to receive a mass-dependent value of the object, store the mass-dependent value of the object in the memory, calculate a torsional oscillation dampening signal using an algorithm that is based at least in part on the mass-dependent value of the object or of the rotating parts of the system, and transmit the torsional oscillation dampening signal to the motor control thereby dampening torsional oscillation of the object rotating in the horizontal plane.

An electronic module that dampens torsional oscillation of an object rotating in a horizontal plane in a system that includes a motor control. The electronic module includes a memory that is configured to store a mass-dependent value of the object or of rotating parts of the system, a housing, and a processor that is positioned within the housing. The processor is configured to receive a mass-dependent value of the object, store the mass-dependent value of the object in the memory, calculate a torsional oscillation dampening signal using an algorithm that is based at least in part on the mass-dependent value of the object or of the rotating parts of the system, and transmit the torsional oscillation dampening signal to the motor control thereby dampening torsional oscillation of the object rotating in the horizontal plane.

A target trajectory signal is calculated by integrating a target speed signal inputted from a suspended-load moving operation tool and passing the integrated signal through a lowpass filter. Target position coordinates of a load are calculated from the target trajectory signal. The current position coordinates of a leading end of a boom are calculated from the attitude of a crane device. An unwinding amount of a wire rope is calculated from the current position coordinates of the load and the current position coordinates of the boom. A direction vector of the wire rope is calculated from the current position coordinates of the load and the target position coordinates of the load. Target position coordinates of the boom are calculated from the unwinding amount and the direction vector. An actuation signal of an actuator is generated from the target position coordinates of the boom.

A target trajectory signal is calculated by integrating a target speed signal inputted from a suspended-load moving operation tool and passing the integrated signal through a lowpass filter. Target position coordinates of a load are calculated from the target trajectory signal. The current position coordinates of a leading end of a boom are calculated from the attitude of a crane device. An unwinding amount of a wire rope is calculated from the current position coordinates of the load and the current position coordinates of the boom. A direction vector of the wire rope is calculated from the current position coordinates of the load and the target position coordinates of the load. Target position coordinates of the boom are calculated from the unwinding amount and the direction vector. An actuation signal of an actuator is generated from the target position coordinates of the boom.

Provided is a crane (1) including: a boom (7); a wire rope (8); a winch (9); and a hook (10). The crane further includes: a spooling operation instrument (24) for enabling commanding an operation state of the winch (9); and switches (switch (41) or switch (42)) for enabling commanding a switch of a control mode with regard to the operation of the spooling operation instrument (24). When the boom (7) is in a flat travel orientation with the hook (10) loaded on a prescribed site (hook platform (12)), the switches ((41), (42)) being in an on state and the spooling operation instrument (24) being operated toward one side thereof cause the boom (7) to be raised to a work orientation while the wire rope (8) is unwound such that the hook (10) is not lifted.

Provided is a crane (1) including: a boom (7); a wire rope (8); a winch (9); and a hook (10). The crane further includes: a spooling operation instrument (24) for enabling commanding an operation state of the winch (9); and switches (switch (41) or switch (42)) for enabling commanding a switch of a control mode with regard to the operation of the spooling operation instrument (24). When the boom (7) is in a flat travel orientation with the hook (10) loaded on a prescribed site (hook platform (12)), the switches ((41), (42)) being in an on state and the spooling operation instrument (24) being operated toward one side thereof cause the boom (7) to be raised to a work orientation while the wire rope (8) is unwound such that the hook (10) is not lifted.

A retaining system for a rotation angle sensor assembly is disclosed. The retaining system includes a first retaining element for coupling to a first of two machine parts and comprising a rotation angle sensor of the rotation angle sensor assembly. The retaining system also includes a second retaining element for coupling to a second of the two machine parts and comprising at least one position encoder element of the rotation angle sensor assembly corresponding to the rotation angle sensor. The rotation angle sensor is configured to detect a rotation of the position encoder element relative to the rotation angle sensor. The first retaining element is configured to guide the rotation angle sensor via a guide positioned between the first retaining element and the second retaining element so as to be rotatable relative to the position encoder element on the second retaining element.