Abstract: Provided is a guide display device with which incorrect recognition of a place having small features as a ground surface having no features can be suppressed in generating and updating a three-dimensional map. A data processing unit (70): detects an edge (Eg) of a feature (E) on the basis of a result of subjecting image data captured by a camera (61) to image processing, and recognizes the feature (E) on the basis of the edge (Eg); and accumulates, from a predetermined number of frames from before the time at which the image data was captured, point group data (P) of a nearby range (Ma) of the edge (Eg) of the feature (E) that was recognized as a ground surface (F), and generates, on the basis of the accumulated point group data (P), a three-dimensional map (M) of the feature (E) the edge (Eg) of which has been recognized.

Abstract: A wireless hoist system including a first hoist device having a first motor and a first wireless transceiver and a second hoist device having a second motor and a second wireless transceiver. The wireless hoist system includes a controller in wireless communication with the first wireless transceiver and the second wireless. The controller is configured to receive a user input and determine a first operation parameter and a second operation parameter based on the user input. The controller is also configured to provide, wirelessly, a first control signal indicative of the first operation parameter to the first hoist device and provide, wirelessly, a second control signal indicative of the second operation parameter to the second hoist device. The first hoist device operates based on the first control signal and the second hoist device operates based on the second control signal.

Abstract: A simulation system for telehandlers that are equipped with a movable operating arm designed to lift and move loads, and stabilisers that include a plurality of movable stabilising arms. An acquisition module is configured to receive at least functional parameters relating to operating conditions of the stabilising arms. A calculation module is configured to determine a potential stability condition as a function of the operating parameters. And an output module is configured to provide an operator with information representing the condition of potential stability.

Abstract: A system for detecting distribution of a weight of a payload in a dump body of a vehicle includes first sensors, second sensors, and a controller. The dump body is pivotable about pins to be selectively seated and titled to a frame of the vehicle. The first sensors are arranged between the dump body and the frame, and detect components of the weight of the payload exerted through the dump body when the dump body is seated relative to the frame. The second sensors are arranged correspondingly within the pins, and detect components of the weight of the payload exerted through the dump body. The controller determines a status of payload distribution in the dump body based on the component of the weight of the payload detected by the first sensors and second sensors, and generate a notification to indicate the status of payload distribution.

Abstract: An agricultural system that includes a towable agricultural implement. The towable agricultural implement includes a tow bar assembly. A wing tool bar pivotally couples to the tow bar assembly or to a work vehicle. The wing tool bar is configured to transition between a deployed configuration and a retracted configuration. A plurality of row units attach to the wing tool bar. An implement protection system detects an obstruction in a path of the towable agricultural implement. The implement protection system includes a proximity sensor coupled to the towable agricultural implement. The proximity sensor emits a proximity signal indicative of the obstruction. A controller couples to the proximity sensor and receives the proximity signal indicative of the obstruction and emits a warning signal.

Abstract: A self-propelled work vehicle is provided with systems and methods for communicating the presence of nearby objects to an operator. A horizontally rotatable machine frame supports a work implement which is further vertically rotatable. Various object sensors are each configured to generate object signals representative of detected objects in respective fields of vision. A controller determines a working area for the work vehicle, corresponding at least to a swing radius of the machine frame and optionally further to a swing radius of the work implement at a given orientation and/or angle of rotation. The controller determines positions of each detected object relative to the machine frame based on the object signals and known positions of the respective object sensors, and generates output signals based on the determined object positions with respect to the working area. The output signals may facilitate vehicle interventions, and/or visual alerts corresponding to bird's eye displays.

Abstract: A mobile work machine includes a frame; ground engaging elements movably supported by the frame and driven by a power source to drive movement of the machine; a moveable element movably supported by the frame to move relative to the frame; an actuator coupled to the moveable element to controllably drive movement of the moveable element; a control system that generates an actuator control signal, indicative of a commanded movement of the actuator, and provides the actuator control signal to the actuator to control the actuator to perform the commanded movement; a terrain identifier configured to identify a characteristic of terrain in a geographic area around the machine; and a stability system that determines whether the commanded movement will result in an unstable state of the machine based on the characteristic of the terrain and, if so, generates a restriction signal, restricting the commanded movement to avoid the unstable state.

Abstract: Provided is a work machine that, within the limit of not harming dynamic stability, can perform work utilizing the impact generated when a cylinder driving a front work implement collides with a stroke end.

Abstract: An outrigger pad assembly includes a base having a bottom surface for engaging an underlying support surface and a top surface opposite to the bottom surface, a force sensor mounted to the base, and an interface body. The interface body includes a lower cavity at least partially defined by a first inner sidewall, an upper cavity at least partially defined by a second inner sidewall, and a coupling body having a latch configured for selective with an outrigger jack. The force sensor is disposed in the lower cavity in sliding contact with the first inner sidewall such that the interface body is movable relative to the force sensor. The outrigger pad assembly may be part of an outrigger assembly of a lifting vehicle.

Abstract: The present invention relates to a crane having a boom at which at least one load receiving means is arranged in a raisable and lowerable manner, wherein an overload protection device has detection means for detecting the outreach and the load on the at least one load receiving means, and wherein a monitoring device for monitoring the overload protection device is provided and has determination means for determining a tensioning force holding the boom and/or induced in a guy cable. The invention furthermore also relates to a method for monitoring the overload protection device of such a crane.

Abstract: The present invention relates to a crane having a boom at which at least one load receiving means is arranged in a raisable and lowerable manner, wherein an overload protection device has detection means for detecting the outreach and the load on the at least one load receiving means, and wherein a monitoring device for monitoring the overload protection device is provided and has determination means for determining a tensioning force holding the boom and/or induced in a guy cable. The invention furthermore also relates to a method for monitoring the overload protection device of such a crane.

Abstract: A crane control system and method which automatically de-rates the maximum capacity of the crane when the boom is located in a first zone located on one side of the truck or in a second zone located on the opposite side of the truck. The control system de-rates the crane without input from the crane operator. The control system may use an inductive proximity sensor located on the base of the boom to locate stationary steel targets located around the base of the boom. The targets approximate the outer ranges of the first and second zones.

Abstract: The disclosure relates to a method for controlling the crane of a working machine by using boom tip control, in which method the crane comprises at least two booms connected to the working machine and each other in an articulated manner, which booms are moved in relation to the working machine and to each other by means of actuators controlled by a control system of the working machine, and in which method the direction and speed of motion of the head of the crane, controlled by the driver applying controls in the working machine, is implemented by applying speeds of the different booms of the crane.

Abstract: The invention relates to a method of operating a mobile work machine with a ground pressure limitation and to a corresponding work machine. A maximum permitted ground pressure is compared with an actually present ground pressure.

Abstract: A crane control system and method which automatically de-rates the maximum capacity of the crane when the boom is located in a first zone located on one side of the truck or in a second zone located on the opposite side of the truck. The control system de-rates the crane without input from the crane operator. The control system uses an inductive proximity sensor located on the base of the boom to locate stationary steel targets located around the base of the boom. The targets approximate the outer ranges of the first and second zones.

Abstract: The present disclosure relates to a method for determining the admissible load capacity of a crane, in which the load capacity is determined in dependence on at least one first and one second parameter and which comprises a first step, in which the load capacity for the value of the first parameter with different values of the second parameter is determined by calculation or by interpolation or extrapolation on the basis of known values of the load capacity with specific values of the first parameter, and which comprises a second step, in which the determination of the load capacity for the second parameter is performed on the basis of the values of the load capacity determined in the first step for different values of the second parameter by calculation or by interpolation or extrapolation.

Abstract: A method for influencing a cable winch force acting on a cable drive, comprises the method steps providing a cable drive with a drivable winch and with a cable that can be wound on the winch, providing a device for producing a traction sheave cable force on the cable, determining an outer cable force, predetermining a cable drive operating state, providing a control-regulating unit to influence the traction sheave cable force, producing a control-regulating variable by means of the control-regulating unit depending on the outer cable force and the predetermined cable drive operating state, producing the traction sheave cable force by means of the device and influencing the traction sheave cable force by means of the control-regulating unit in such a way that the cable winch force acting on the cable drive can be controlled depending on the respective cable drive operating state and the outer cable force, wherein the device is a traction sheave drive, wherein a four-quadrant operation of the traction sheave dr

Abstract: A system (19; 19, 35) for reducing an amount of a counterweight for a crane comprises a crane (2) having a founding structure (3) being disposed on a base (20), a coupling unit (4), and a superstructure (5) being coupled to the founding structure (3) via the coupling unit (4). The system (19; 19, 35) further comprises a suspension device (21; 21, 36) for suspending the crane (2) at the base (20), said suspension device (21; 21, 36) having a guiding structure (22; 22, 37) defining a guiding direction (23; 23, 38), said guiding structure (22; 22, 37) being attached to the base (20), a displacement device (24) being displaceably attached to the guiding structure (22; 22, 37) along the guiding direction (23; 23, 38), and at least one suspension element (29) being connected with a first end to the crane (2) and being connected with a second end to the displacement device (24).

Abstract: The present invention relates to a crane, in particular to a crawler crane or mobile crane having at least one monitoring and simulation means by means of which a state of the crane can be monitored and/or simulated, wherein the monitoring and simulation means has at least one input means and at least one output means and wherein the actual state and/or state development of the crane and/or of the boom of the crane can be displayed by means of the monitoring and simulation means and/or a possible state and/or possible state development of the crane can be simulated and/or displayed.

Abstract: A performance line display unit includes an imaging device which is attached near a leading end of an extensible boom provided on a rotation platform rotatably placed on a vehicle of a crane, a display configured to display an image imaged by the imaging device, and a performance line arithmetic part configured to obtain a performance line regarding a suspended load maximum performance of a crane, wherein the performance line arithmetic part is configured to overlap the performance line with a position of the image corresponding to the obtained performance line to be displayed on the display.

Abstract: An apparatus is provided for use in combination with a sensor operative to detect heave motion. The apparatus comprises a main chassis, a drive assembly, a lifting column, a pinion, and control circuitry. The drive assembly is mounted to the main chassis and comprises a drive gear. The lifting column is translatably disposed in the main chassis and comprises a linear gear rack that runs along a longitudinal axis. The pinion is rotatably coupled to the rotation of the drive gear and engages with the linear gear rack such that rotation of the pinion is coupled to translation of the lifting column in the main chassis along the longitudinal axis. Finally, the control circuitry is operative to command the drive assembly to cause the lifting column to translate in the main chassis at least in part based on the heave motion detected by the sensor.

Abstract: The invention relates to a monitoring and alarm device for construction machinery having long and heavy booms, such as cranes, in particular mobile cranes, is characterized in that a monitor system is provided, which monitors parameters that may change in case of an undesired lowering of the boom or of boom sections in a non-operating condition, and triggers an optical and/acoustic and/or wireless alarm system if the parameters change.

Abstract: An extendable beam measurement system includes a support; a beam mounted on the support and movable with respect to the support along an axis of movement; a series of sensory points mounted along either the beam or the support in an orientation that is not parallel to the axis of movement of the beam; and a sensor attached to the other of the beam or the support in a direction that crosses the series of sensory points at different positions during movement of the beam along said axis. The sensor generates a first signal varying as the beam is moved along the axis to thereby provide a signal indicating the position of the beam with respect to the support. The system is useful on an outrigger for supporting a crane. Optionally the system can provide a second signal indicative of whether a jack on the outrigger is contacting a support surface and supporting the crane.

Abstract: A method for monitoring a stability parameter of a loading crane mounted on a vehicle supported on the ground by wheels and by support elements separate from the wheels includes calculating, using a processor, the stability parameter of the loading crane mounted on the vehicle supported on the ground by the wheels and the support elements, and comparing the magnitude of the stability parameter to at least one predetermined limit value. The calculating includes detecting contributions to a magnitude of the stability parameter of the wheels of the vehicle on which the loading crane is mounted and detecting contributions to the magnitude of the stability parameter of the support elements of the vehicle on which the loading crane is mounted.

Abstract: A level-controllable crawler crane includes two crawler supports with rotating crawlers, which crawler supports are connected by a transversal bridge. A superstructure of the crawler crane includes a crane jib pivotable about a vertical axis and connected to the transversal bridge. A pivotable articulation connects the transversal bridge to the crane superstructure. At least one of the crawler supports is connected to the transversal bridge by a double link having a lower and an upper link. The lower link is articulated on the crawler support by a crawler support lower pivotable axis and on the transversal bridge by a transversal bridge lower pivotable axis. The upper link is articulated on the crawler support by a crawler support upper pivotable axis and on the transversal bridge by a transversal bridge upper pivotable axis. A drive pivots the links about the pivotable axis associated therewith.

Abstract: An extendable beam measurement system includes a support; a beam mounted on the support and movable with respect to the support along an axis of movement; a series of sensory points mounted along either the beam or the support in an orientation that is not parallel to the axis of movement of the beam; and a sensor attached to the other of the beam or the support in a direction that crosses the series of sensory points at different positions during movement of the beam along said axis. The sensor generates a first signal varying as the beam is moved along the axis to thereby provide a signal indicating the position of the beam with respect to the support. The system is useful on an outrigger for supporting a crane. Optionally the system can provide a second signal indicative of whether a jack on the outrigger is contacting a support surface and supporting the crane.

Abstract: A multi-use vehicle mounted loading rack system adapted to safely lift and move loads onto and off of a truck. The system includes a support which rests on bed rails which rest on a truck bed, a horizontal member, a trolley which is reversibly extendable relative to the horizontal member, a hoist mounted on the trolley, and an electrical control system including a tilt sensor and other safety features.

Abstract: The present invention represents a procedure for compensating the heave movement of offshore cranes. The dynamic model of the compensation actuator (hydraulically operated winch) and the load hanging on a rope are derived. Based on this model, a path-tracking control unit is developed. To compensate the movement of the ship/watercraft caused by waves, the heave movement is defined as a time-varying disturbance and is analyzed with respect to uncoupling conditions. With a model expansion, these conditions are satisfied, and an inversion-based uncoupling control law is formulated. To stabilize the system, an observer is used for reconstructing the unknown state by means of a force measurement. Furthermore, the compensation efficiency can be improved by predicting the heave movement. There is proposed a prediction method in which no ship/watercraft models or properties are required. The simulation and measurement results validate the heave compensation method.

Abstract: The present invention is typically embodied to exert active control of two same-shipboard cranes performing joint lifting of a payload. Sensory signals indicative of ship motion, and of luff angle and hoist line length of both cranes, are transmitted to a computer. The sensory signals are processed by the computer using a ship motion cancellation algorithm, which solves for values of the respective luff angles and hoist line lengths of both cranes, such values achieving static equilibrium (e.g., zero motion horizontally, vertically, and rotationally in the same vertical geometric plane) of the suspended payload. Inverse kinematic control signals in accordance with the mathematical (e.g., minimum norm) solutions are transmitted by the computer to respective luff angle actuators and hoist line length actuators of both cranes so that the suspended payload tends toward steadiness. Inventive control thus acts on a continual basis to significantly reduce pendulation during the two-crane lifting operation.

Abstract: A mobile lift device having a load moving device capable of engaging a load is provided. The mobile lift device includes one or more systems for stabilizing the mobile lift device during operation of the load moving device. According to one exemplary embodiment, the mobile lift device is a heavy duty wrecker having a rotatable boom assembly. The heavy duty wrecker comprises a monitoring system for stabilizing the wrecker during operation of the boom assembly. The monitoring system comprises a plurality of sensors and a monitoring circuit coupled to the sensors to generate a force signal representative of at least one force being applied to the wrecker based upon the transmitted signals.

Abstract: The present disclosure relates to an overload warning means for excavators, preferably hydraulic excavators or material handling devices, with three or more contact points, the contact forces being determined at the contact points such that they are brought into an order descending by the amount thereof, so that F1>F2>F3 > . . . >Fn, and that the static stability is determined according to the following formula: S = ? i = 3 n ? F i ? i = 1 n ? F i ? S min .

Abstract: The present invention provides a safety device against crane overturning which operates in a crawler crane comprising at least four outriggers in a frame, the safety device comprising a load detector 2 that detects a ground reaction to each of the outriggers, and an alarm output section 4 which calculates sums of detected values for ground reactions to every two adjacent outriggers to find a minimum value of the sums. The alarm output section then compares the minimum value obtained with a preset preliminary reference value and a preset limit reference value and outputs a preliminary alarm signal when the minimum value is smaller than the preliminary reference value or outputs a limit alarm signal when the minimum value is smaller than the limit reference value. This prevents safety from being degraded as a result of a change in the working radius of the crane. Further, calculation processes are simplified.

Abstract: A stability measurement system is provided for a lifting vehicle including a vehicle frame, a turntable secured to the vehicle frame and supporting lifting components of the vehicle frame, and a turntable bearing disposed between the vehicle frame and the turntable. The stability measurement system includes a plurality of load sensors secured to the turntable bearing that measure vertical forces on the turntable bearing. A controller calculates a rotational moment applied to the vehicle frame from the turntable by processing the vertical forces on the turntable bearing measured by the plurality of load sensors. The forces are directly related to the stability of the machine. By monitoring the resulting moment according to a predetermined upper bound and lower bound, operation of the lifting machine can be controlled to substantially eliminate a tipping hazard.

Abstract: A measurement system uses dual axis force sensor pins to effectively assess the tipping moment of a load-bearing vehicle and anticipate imminent tipping in any direction. The pins are installed in the pivot points of the boom of a lift vehicle and its main lift cylinder, substituting the standard structural pins presently used. For non-traditional boom support arrangements, one sensor pin for each moving part attachment to non-moving turntable is required. Each of the sensors provides the actual force components acting on the sensor in two perpendicular axes. The output signals are then utilized to assess vehicle stability and detect when the machine is approaching instability in order to warn the operator and/or restrict vehicle movements.

Abstract: A side load detection and protection system (10) operable using pressure sensors (26, 28) to determine side load as a function of a difference in media pressure between two ports (40, 42) of a pneumatic/hydraulic rotation motor (22). When the side load exceeds a pre-established limiting value, the system (10) shuts off functions that could be causing the side load. The system (10) includes a visual display (34) to communicate the actual amount of side load and to present a warning when the limiting side load value has been reached or exceeded. The system (10) is able to differentiate between loads applied to the rotation mechanism through operation of the pneumatic/hydraulic rotation motor (22) and loads due to external forces acting directly or indirectly on the system (10). Furthermore, in order to account for different efficiencies, the system (10) can have separate set-points for side load in clockwise or counterclockwise directions.

Abstract: A measurement system uses dual axis force sensor pins to effectively assess the tipping moment of a load-bearing vehicle and anticipate imminent tipping in any direction. The pins are installed in the pivot points of the boom of a lift vehicle and its main lift cylinder, substituting the standard structural pins presently used. For non-traditional boom support arrangements, one sensor pin for each moving part attachment to non-moving turntable is required. Each of the sensors provides the actual force components acting on the sensor in two perpendicular axes. The output signals are then utilized to assess vehicle stability and detect when the machine is approaching instability in order to warn the operator and/or restrict vehicle movements.

Abstract: The invention relates to a control monitoring device for tower cranes, in particular for small cranes, with integration of functions, and adapted for radio control.

Abstract: Apparatus for controlling the rotational movement of a ladder or the like of mobile equipment having stabilizing outriggers when the ladder is rotated manually to the side of the mobile equipment which does not have the outrigger fully deployed. A two-part switch, arranged for one part to rotate relative to the other, develops various combinations of signals dependent upon the relative positions of the parts of the switch. A control circuit is arranged to recognize the positions of the switch parts and supplies control signals which allow the ladder to rotate at a particular rate and to a particular point as the operator is steering the ladder to the side of the mobile equipment at which the outrigger is not fully deployed.

Abstract: The protection system for outriggers of a chassis includes a non-contact distance measuring device, associated with at least one of the outriggers and the chassis, mounted on one of the outriggers and the chassis. The non-contact distance measuring device measures the distance to the ground along a predetermined angle, and generates a warning signal based on the measured distance. A controller stops operation of the outriggers in response to the warning signal.

Abstract: A processor implemented stabilization system for load handling equipment monitors at least a portion of the equipment weight load at an equipment support member. Reduction below or increase above predetermined values signals an approaching tip over condition and triggers alarm condition responses for stabilization of the equipment. In a counterbalanced lift truck, the equipment weight load on a rear steer wheel is carried by an outer bearing race of a spindle and is transferred from the race to a load cell which is positioned between the race and a shoulder of a mounting tube. The load cell output is received at a processor which monitors the cell to determine if there is an approaching longitudinal tip over condition (toward or away from the load) as well as a lateral tip over condition.

Abstract: The present invention relates to a crane vehicle with an overload safety unit, with a jib, preferably a telescoping jib, hinged to its superstructure which jib can be luffed by means of a luffing ram which is hinged to the jib and the superstructure, with extending sliding beams which are positioned at the end parts of the longitudinal sides of the carrier which face each other and which are provided at their ends with extending stabilizer bases, and with a unit measuring the swing angle of the jib the signals of which unit are fed to a processing unit of the overload safety unit, where the overload safety unit generates a warning signal and/or stops the crane operation when the crane reaches or exceeds limits which endanger its stability.

Abstract: The present invention relates to a crane vehicle with a jib, preferably a telescoping jib, hinged to its superstructure which jib can be luffed by a luffing ram which is hinged to the jib and the superstructure, with extending sliding beams which are positioned at the end parts of the longitudinal sides of the carrier which face each other and which are provided at their ends with extending stabilizer bases, and with an overload safety unit which generates a signal and/or stops the crane operation when the crane reaches or exceeds limits which endanger its stability. In accordance with the invention a monitoring unit is provided which detects the extension state of the sliding beams and which feeds the signals corresponding to the relevant extension state of the individual sliding beams to the overload safety unit and the overload safety unit assumes the lowest extension length of one of the sliding beams for all sliding beams to determine the limits which endanger the stability.

Abstract: Apparatus for controlling the rotational movement of a ladder or the like of mobile equipment having stabilizing outriggers when the ladder is rotated manually to the side of the mobile equipment which does not have the outrigger fully deployed. A two-part switch, arranged for one part to rotate relative to the other, develops various combinations of signals dependent upon the relative positions of the parts of the switch. A control circuit is arranged to recognize the positions of the switch parts and supplies control signals which allow the ladder to rotate at a particular rate and to a particular point as the operator is steering the ladder to the side of the mobile equipment at which the outrigger is not fully deployed.

Abstract: A crane safety apparatus for displaying a schematic diagram of a part of a crane mechanism on a two-dimensional screen dynamically as the crane mechanism is operated, and displaying on the same screen a predetermined operation zone as a visually discriminative zone pattern. The operation zone pattern is displayed on the screen in response to the key command by an operator during a selected crane operation mode, while referring to the schematic crane mechanism diagram currently displayed on the screen.

Abstract: The present invention relates to a suspension load and tipping moment calculating apparatus for a mobile crane which can calculate a suspension load and a tipping moment with high accuracy and use an excessive load prevention load while ensuring safety. For this reason, the apparatus is provided with sensors (50, 48, 46) for detecting a boom length, a boom angle, and an axle weight of a boom derricking cylinder (26) on a second boom (28) side, and is equipped with a controller (38) for calculating a suspension load (Wa) suspended from the second boom (28) based on signals from these sensors. In addition, for calculating a tipping moment, a boom length sensor (44) and a boom angle sensor (42) on a first boom (24) side are provided.