A boom extension monitoring system is provided that uses a combination of sensors to determine an absolute location and a relative location of the boom. As the boom extends or retracts, the monitoring system can determine the absolute location of the boom as the sum of the absolute at relative distances. These distances can be obtained through a combination of a grid, low-resolution sensors, high-resolution sensors, counters, processors, and other components according to various embodiments described herein. A process to obtain the total boom extension of multiple telescoping beams by monitoring the extension of a single beam element is also described.

A crane drive method is provided for selecting and applying a preferential load curve adapted to a work configuration of a crane having a mast supporting a luffing jib including at least one jib structural element. The method includes an inclination measurement step implementing a measurement of an actual inclination of the jib structural element with respect to a reference axis in the work configuration, a selection step implementing an automated selection of the preferential load curve according to the actual inclination of the jib structural element, the preferential load curve selected from among a plurality of load curves stored in a memory and calculated beforehand for several inclinations of the jib structural element, and a drive step implementing an application of the preferential load curve for maneuvers of lifting and moving a load along the luffing jib in the work configuration of the crane.

A crane includes a carrier unit having a chassis, tires connected to the chassis, a carrier deck and outriggers. A superstructure is mounted on the carrier unit, the superstructure includes a telescoping boom. A slope sensor is operably connected to the carrier unit and configured to detect a pitch and/or a roll of the carrier unit during a lift operation. The crane further includes a system for monitoring a load lifted by the telescoping boom. The system is configured to determine the current load lifted by the telescoping boom, receive pitch and/or roll information of the carrier unit from the slope sensor, adjust coordinates of the crane in a coordinate system based on the pitch and/or roll information, determine a transformed operating radius using the adjusted coordinates; and compare the load lifted to a rated capacity at the transformed operating radius.

A dynamic lift-off control device that is mounted on a crane including a boom and a winch for winding a wire rope and that controls dynamic lift-off of a suspended load, wherein: the dynamic lift-off control device comprises a load detection unit that detects a load acting on the boom, and a control unit that controls a winding action of the winch and a hoisting action of the boom; and the control unit controls the hoisting of the boom by using a control signal, which is generated on the basis of the change over time in the value detected by the load detection unit and to which a filter for attenuating a frequency component in a prescribed range, to suppress swaying of the suspended load is applied.

To estimate the top surface of a measurement target on the basis of a data point group that corresponds to the top surface of a measurement target and is obtained using a laser scanner. This top surface estimation method for hoisting loads and by acquiring, using the laser scanner, data point groups in a hoisting load region which includes a hoisting load and an object from above the hoisting load and the object, dividing the hoisting load region into layers which constitute a plurality of groups which have a prescribed thickness in the vertical direction, and allocating the acquired data point groups to the plurality of layer groups, and estimating the top surfaces of the hoisting load and the object in each layer group on the basis of the data point groups allocated to the plurality of layer groups.

A crane includes a crane body, a flying body, a route information acquisition unit that acquires route information in transporting a suspended load of the crane body via the flying body, and a support unit that performs steering support for performing a transport operation of the crane body along a movement route indicated by the route information.

An adaptation method is provided for adapting a load curve of a crane to a configuration of the crane, wherein the configuration of the crane is associated with a plurality of crane parameters among which a selection of at least one preferential parameter may be operated. The adaptation method includes implementing a determination of a preferential load curve from among a plurality of load curves calculated as a function of the selected preferential parameter.

An inclination sensor system for a mobile work machine includes a MEMS inclination sensor and a further inclination sensor of a different type and a fusion device. The inclination sensor is configured to output a first inclination signal on the basis of an inclination that exists at the inclination sensor. The further inclination sensor is configured to output a second inclination signal on the basis of the inclination that exists at the further inclination sensor. The fusion device is configured to calculate a corrected inclination signal on the basis of the first and second inclination signals and to output same as the corrected inclination signal.

A securing method for securing a crane on the occurrence of an exceptional event, the crane including a control-command system connected to actuators of the crane and integrated within a processing unit of the crane, the processing unit connected to movement, load and safety sensors placed on elements of the crane and configured to deliver information from events representative of exceptional events, wherein the securing method includes establishing a list of exceptional events detectable by the movement, load and safety sensors, associating levels of severity to each exceptional event, evaluating the level of severity of a detected exceptional event based on corresponding event information, switching from a nominal operating mode to a secure operating mode by applying a safety instruction associated with a severity level for the detected exceptional event, and emitting an alert message informing of the occurrence of the exception event.

This crane information display system is provided with a terminal device having a camera and captures an image of a crane with the camera to obtain a camera image, said crane information display system comprising: a crane detection unit that detects the orientation of the crane in the camera image; an information processing unit that identifies the position and posture of the crane in the coordinate system of the camera image; a working capacity calculation unit that calculates the working capacity of the crane on the basis of the information relating to the crane inputted to an input unit; and an image display unit that converts the working capacity of the crane into three-dimensional image information corresponding to the position and posture of the crane, overlays the image information on the camera image, and displays the same.