Abstract: Provided is a controller with high versatility that can automatically store or raise a boom and can be commonly used for various boom devices. The controller generates a function based on a length of a boom and a distance from a derrick fulcrum of the boom to an engaging member stored in a memory, and a depression angle of the engaging member with respect to the fulcrum. Then, the controller substitutes a derrick angle of the boom detected by a derrick angle sensor into the generated function to calculate a displacement distance from a distal end of the boom to the engaging member. The controller rotates a winch while raising and lowering the boom between a lowered position and a raised position such that the calculated displacement distance is a distance corresponding to an unwinding length of a wire detected by a length sensor.

Abstract: An image system is for a crane in which a boom that can be raised and lowered is provided to a vehicle with a rotating base therebetween, and said image system is provided with a plurality of vehicle body cameras provided to the vehicle, an upper camera provided to the boom, a display device, and an image processing device. The image processing device acquires vicinity images of the crane captured by the vehicle body cameras and an upper image of the crane captured by the upper camera, converts the vicinity images into images looking downward from an overhead virtual viewpoint, connects the results, generates a bird's-eye-view image, and uses the display device to display a composite image in which a supplementary image of the upper image corresponding to a missing part in the bird's-eye-view image is superimposed on the missing part.

Abstract: This work machine comprises: a first pin transitioning between an in-state where the boom and the telescopic cylinder are connected and an out-state where the connection is released; a second pin transitioning between an in state where booms are connected and an out-state where the connection is released; a main-detection device and a sub-detection device detecting the states of the first pin and the second pin; and a control unit that controls the boom based on the detection results of the main-detection device. The control unit controls the ON/OFF of a first flag indicating whether or not the main-detection device detected the combination and the ON/OFF of a second flag indicating whether or not the sub-detection device detected the combination, and detects that an abnormality has occurred in the main-detection device and sub-detection device based on the first flag and the second flag.

Abstract: There is provided a crane control method whereby, during automatic transportation of a load along a preset transport route using a crane, it is possible to reliably transport the load along the route; and a crane that can be controlled by the crane control method. A control device (32) calculates target speed signals (VU), (VW), (VR) for designating the target hoisting speed and the target rotational speed of a boom (9) and the target winding/unwinding speed of main wire rope (14) or sub wire rope (16), calculates the maximum speeds (VUmax), (VWmax), (VRmax) of the hoisting and rotation of the boom (9) and winding/unwinding of the main wire rope (14) or the sub wire rope (16), and, if a target speed exceeds the corresponding maximum speed, controls the crane (1) by multiplying the target speed signal (VU), (VW), (VR) by a coefficient and restricting the target speed signal (VU), (VW), (VR) to be less than the corresponding maximum speed.

Abstract: The crane device includes: a camera provided on a hook; a camera control unit which controls an image-capturing operation of the camera on the basis of control information for operating a carrying element; and an image processing unit which processes a captured image that has been captured with the camera. The camera captures an image of the carrying destination of a baggage. The image processing unit takes, as a reference area, an arbitrary area in the image captured with the camera, generates a correction image obtained by projecting the captured image onto a plane that is parallel to the reference area and is perpendicular to an arbitrary direction with the baggage used as a viewpoint, calculates a current position of the baggage in the correction image, and displays the current position in a visually recognizable mode.

Abstract: A crane device is capable of setting multiple types of number of rope falls between a tip of a boom and a hook block, and includes: a feed length detection unit that detects a feed length of a rope fed from a winch on which the rope is wound; a boom angle detection unit that detects a boom hoist angle; and a number-of-falls determination unit that calculates information for determining the suitability of the number of falls for the rope on the basis of the feed length, hoist angle, boom length of the boom in a state of hoisting a grounded load.

Abstract: A crane information display system includes a terminal device having a camera, and obtains camera images by imaging, with the camera, a first information display unit that displays information about a crane, the crane information display system including: a crane information acquisition unit that reads, from the camera images, display information of the first information display unit to acquire information about the crane; a virtual crane generation unit that generates a virtual crane image; a position/posture calculation unit that calculates, from the camera images, a position at which the virtual crane is to be disposed and a posture to be taken by the virtual crane; an information processing unit that converts the virtual crane image into an image that corresponds to the position and the posture of the virtual crane; and an image display unit that overlays and displays the virtual crane onto the camera images.

Abstract: A crane in which a boom that is capable of derricking and extending/retracting is provided to a swiveling base includes: an operable-range-setting unit that sets an operable range in which a load being transported can be transported, the operable range being set according to the weight of the load; a path generation unit that generates, within the set operable range, a plurality of nodes through which the load can pass and a plurality of paths connecting adjacent nodes; and a transport path determination unit that determines a transport path of the load on the basis of a priority sequence for actuating a plurality of actuators of the crane, the transport path satisfying a prescribed condition, and being determined from the generated plurality of nodes and plurality of paths.

Abstract: In a truck crane, in a state where an air suspension is in an exhaust state and a locking member is not in a locked position, a control unit restricts a movement of a front outrigger and a rear outrigger to a ground contact position, and in a state where the air suspension is in the exhaust state and the locking member is in the locked position, the control unit allows the movement of the front outrigger and the rear outrigger to the ground contact position.

Abstract: A crane is provided. The crane includes an acceleration sensor that detects the acceleration of a load, wherein a target velocity signal is converted into target location coordinates of the load, current location coordinates of a boom are calculated from a slewing angle, a luffing angle, and an expansion/contraction length, the spring constant of a wire rope is calculated from the previously calculated location of the load from a unit time earlier, the current location coordinates of the boom, and the current accelerations of the load as detected by the acceleration sensor, target location coordinates of the boom are calculated from the accelerations, the spring constant, and the target location coordinates of the load, and an actuator operation signal is generated.

Abstract: According to the present invention, a work machine comprises a plurality of booms that are extended and retracted by motive power from an actuator, a first pin that is moved by a first spring to connect the boom and the actuator and is moved by motive power from a motor to release a connection of the boom and the actuator, a second pin that is moved by a second spring to connect adjacent booms and is moved by motive power from the motor to release a connection of the adjacent booms, and a first detection device and a second detection device that detect the positions of the first pin and the second pin on the basis of the rotation of a rotary member that is rotated by motive power from the motor.

Abstract: A loading type truck crane includes an outrigger device including a right outrigger and a left outrigger that are mounted on a vehicle and are capable of extending and retracting in a vehicle width direction of the vehicle, a crane device that includes a turnable boom and is mounted on the vehicle, and a control device that calculates a critical working radius of the crane device on a basis of a ground-contact reaction force of the outrigger device, and implements safety control related to at least one of a lowering operation and an extension operation of the boom by the crane device on a basis of the calculated critical working radius.

Abstract: An outrigger control device (A1) includes: a plurality of outriggers (30) that is provided in a traveling body (10) and extendable/contractible between a non-grounding state where the traveling body is not supported and a grounding state where the traveling body is supported; an inclination sensor (310) that is provided in the traveling body and can detect inclination of the traveling body; and a controller (100) that controls an extension/contraction action of each outrigger and acquires a detection signal of the inclination sensor (310). Further, the controller is provided with a grounding determination processing unit (101) that controls the outriggers to perform a predetermined grounding determination action and determines whether or not each outrigger is in the grounding state on the basis of the detected value of the inclination sensor at the time.

Abstract: Provided is a work vehicle that can be transported by being loaded onto a trailer without having the outriggers removed. The work vehicle (rough terrain crane) is transported by being loaded onto a low bed trailer including a low bed and a high portion (first high bed, second high bed) higher than the low bed in at least one of the front and the rear of the low bed, and includes: outrigger units (front outrigger unit, rear outrigger unit) that are mounted to the front and rear of a vehicle body; and a lift unit that lifts and lowers the outrigger units (front outrigger unit, rear outrigger unit with respect to the vehicle body.

Abstract: A guide display device of a crane including a data processing unit that creates a plurality of surfaces using point cloud data, which is acquired by a laser scanner from above a hung load and which includes the hung load, and creates a three-dimensional map according to the plurality of surfaces, the three-dimensional map being created for each prescribed period, wherein the data processing unit is configured to set a reference position at the hung load in the three-dimensional map and also set a current surface present within a prescribed distance from a past reference position as the surface of the hung load, thereby tracking the hung load in the three-dimensional map.

Abstract: A control device equipped with a first acquisition unit for acquiring information pertaining to the location of the center of gravity of cargo transported by a work machine, a second acquisition unit for acquiring information pertaining to the location of a first section of the cargo which differs from the location of the center of gravity thereof, and a calculation unit for calculating information pertaining to the orientation of the cargo on the basis of the information pertaining to the location of the center of gravity of the cargo and the information pertaining to the location of the first section.

Abstract: A crane has a traveling device, a turn table, a cockpit, a main power unit, an auxiliary power unit, and a processor that selectively switches between a manual power mode and an auxiliary power mode, and the processor disables a switching between the manual power mode and the auxiliary power mode when an operation input to the operating system that operates the boom is detected, and the processor enables a switching between the main power mode and the auxiliary power mode when an operation input to the operating system is not detected.

Abstract: The purpose of the present invention is to provide: a remote control terminal which can perform a remote control on a working vehicle easily and simply; and a working vehicle provided with a remote control terminal.

Abstract: In a truck crane, in a state where an air suspension is in an exhaust state and a locking member is not in a locked position, a control unit restricts a movement of a front outrigger and a rear outrigger to a ground contact position, and in a state where the air suspension is in the exhaust state and the locking member is in the locked position, the control unit allows the movement of the front outrigger and the rear outrigger to the ground contact position.

Abstract: 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, the crane information display system including a crane information acquisition unit that reads display information of an information display unit, which is mounted in the crane, from the camera image and acquires information about the crane; a position/orientation calculation unit that calculates the position and orientation of the crane from the camera image; an information processing unit that converts the information about the crane acquired by the crane information acquisition unit into three-dimensional image information corresponding to the position and orientation of the crane calculated by the position/orientation calculation unit; and an image display unit that overlays the information about the crane converted by the information processing unit on the camera image and displays the same.