Abstract: An operating device includes a crane controller for controlling actuators of the loading crane and for generating sensor data based on the sensor signals, and an input device spatially separated from the crane controller for inputting control commands for the crane controller. The crane controller has a first telecommunications device for exchanging data signals with the input device, and the data signals output by the crane controller include sensor data. The input device has a second telecommunications device for exchanging data signals including control commands with the first telecommunications device. The input device has a transmitter device for outputting data signals. A signaling device is spatially separated from the input device, and has a receiver device for receiving data signals output by the transmitter device and a display device for displaying audio data and/or image data. The signaling device signals the audio data and/or image data to a user.

Abstract: A lifting device has crane arm and a working device arranged on the crane arm and movable by the latter. The working device is arranged to be displaceable relative to the crane arm, and an actuating device for setting a predefined or predefinable target position of the working device relative to the crane arm or to a predefined or predefinable direction in space is provided. A sensor for detecting an actual position of the working device relative to the crane arm or to the direction in space is provided, the signals from which can be supplied to the actuating device. The actuating device moves the working device into the target position as a function of the signals from the sensor if the actual position is not equal to the target position.

Abstract: An operating device includes a crane controller for controlling actuators of the loading crane and for generating sensor data based on the sensor signals, and an input device spatially separated from the crane controller for inputting control commands for the crane controller. The crane controller has a first telecommunications device for exchanging data signals with the input device, and the data signals output by the crane controller include sensor data. The input device has a second telecommunications device for exchanging data signals including control commands with the first telecommunications device. The input device has a transmitter device for outputting data signals. A signaling device is spatially separated from the input device, and has a receiver device for receiving data signals output by the transmitter device and a display device for displaying audio data and/or image data. The signaling device signals the audio data and/or image data to a user.

Abstract: In a method for determining a load that is lifted or to be lifted by a hydraulic lifting device, for the determining the load lifted or to be lifted, in a reference phase, the lifting device is moved into a reference position in a first loading state of the lifting device. A first detection of the forces currently acting on the lifting device and the current geometry of the lifting device occurs in the reference position. In a measurement phase, the lifting device is moved into a measurement position in a second loading state, and a second detection of the forces currently acting on the lifting device and the current geometry of the lifting device occurs in the measurement position. In a comparison phase, the lifted load is characterized by a comparison of the respective detected forces currently acting on the lifting device and the respective detected current geometry of the lifting device.

Abstract: The invention relates to a method for securing the position of a crane with at least two support legs for supporting said crane on surfaces. At least one threshold is entered for the support legs, and movements which increase the supporting force are blocked if at least one threshold is exceeded by a current supporting force, the thresholds for each of the support legs being entered individually and/or for subgroups of support legs.