Abstract: A work machine surroundings monitoring system includes a first display image generation unit that generates a first display image indicating surroundings of a work machine on the basis of a camera image of a camera that captures an image of the surroundings of the work machine, a second display image generation unit that generates a second display image in a display mode different from that of the first display image on the basis of camera images of a plurality of cameras that capture images of the surroundings of the work machine, and a display control unit that generates a signal for displaying the first display image on a part of a display screen, displaying the second display image on a part of the display screen, and displaying a boundary image at a boundary between the first display image and the second display image on the display screen.

Abstract: A control method for a work vehicle, includes: calculating a speed ratio indicating a ratio between a rotation speed of an input shaft connected to an engine and a rotation speed of an output shaft connected to a traveling device; and outputting a capacity command for changing at least one of a capacity of a first hydraulic pump motor and a capacity of a second hydraulic pump motor based on correlation data indicating a relationship between the speed ratio and the capacities of the first and second hydraulic pump motors, wherein the correlation data is set so that both the capacity of the first hydraulic pump motor and the capacity of the second hydraulic pump motor are changed with a change in the speed ratio in a predetermined speed ratio range between a first speed ratio and a second speed ratio higher than the first speed ratio.

Abstract: A system automatically controls a work machine including a work implement. The system includes a load sensor and a processor. The load sensor detects load data indicative of a load applied to the work implement. The processor acquires the load data. The processor executes a load reduction control in order to cause the work machine to operate so as to reduce the load based on the load applied to the work implement during digging. The processor records, as a reference position, a position of the work machine when the load applied to the work implement during the digging becomes a predetermined threshold or greater. The processor determines a next starting position based on the reference position. The processor controls the work machine to start next digging from the next starting position.

Abstract: A control apparatus for work machines includes a position designation reception unit configured to identify designation of a position with respect to a state image displayed on a display panel and a screen control unit configured to perform screen control according to an image displayed at the position that has been identified, among partial images constituting parts of the state image.

Abstract: A turbo type pump configured to pressurize a fluid and supply the fluid to a downstream side of a fluid passage by rotation of an impeller provided in the fluid passage, includes: a reduced-diameter portion having a reduced inner diameter in a state of forming a reverse surface facing a downstream side, the reduced-diameter portion being provided at a portion located on an upstream side of the impeller in the fluid passage; and a reverse partition wall portion provided in the reverse surface and configured to restrict a flow of the fluid in a circumferential direction.

Abstract: A loading machine control device includes a measurement data acquisition unit acquiring measurement data of a measurement device mounted in a loading machine having working equipment, a target calculation unit calculating, based on the measurement data, a position of an upper end portion of a loading target to which an excavation object excavated by a bucket of the working equipment is loaded, a bucket calculation unit calculating position data of the bucket, an overlap determination unit determining whether the upper end portion of the loading target and the bucket that are in the measurement data overlap each other, and a working equipment control unit controlling the working equipment based on the measured position of the upper end portion of the loading target when it is determined that the upper end portion of the loading target and the bucket that are in the measurement data do not overlap each other.

Abstract: A time period for which an ineffective operation is performed during an excavation work is reduced. A work machine includes a vehicular body, a running wheel rotatably attached to the vehicular body, a work implement operable with respect to the vehicular body, an operation apparatus for operating the running wheel and the work implement, and a controller that controls an operation by the work machine. The controller determines that an ineffective operation in which the work implement does not work is being performed during the excavation work based on an operation command value output from the operation apparatus and outputs a time period for which the ineffective operation is being performed.

Abstract: A work vehicle includes a hydraulic actuator that changes an actual steering angle, an actual steering angle detecting part, an operating unit that performs a steering operation, a position adjusting control part that controls the position adjusting part based on the actual steering angle, and a steering control part that controls the hydraulic actuator. The operating unit includes a support part, a rotating part supported rotatably by the support part, an operating part supported rotatably by the support part or the rotating part, a biasing part that biases the operating part to a predetermined position with respect to the rotating part, and a position adjusting part that adjusts a rotation angle of the rotating part with respect to the support part. The biasing part may produce various counterforces and may increase or reduce an increasing rate of a counterforce with respect to the relative angle.

Abstract: A work vehicle includes a vehicle body, a work implement including a boom attached to the vehicle body and an attachment attached to a tip end part of the boom, a first actuator configured to rotate the boom up and down, and a controller configured to execute an automatic lowering control in order to automatically rotate and lower the boom. The controller is further configured to set the first actuator to a floating state when it is detected that the attachment has reached a predetermined position during an execution of the automatic lowering control.

Abstract: A cab includes: a pillar member; a beam member; and a rib member. The pillar member extends in an up-down direction. The beam member extends in a left-right direction. The beam member is connected to an upper end of the pillar member. The rib member is provided at a corner portion where the pillar member and the beam member intersect with each other. The rib member is connected to the pillar member and the beam member. The rib member is embedded in at least one of the pillar member and the beam member.

Abstract: A system controls a work machine including a work implement, a rotating body, and a support body to load materials onto a conveyance vehicle. The system includes a first processor. The first processor acquires data indicative of a position of a predetermined reference point included in the conveyance vehicle. The first processor acquires data indicative of a position of a rotation center of the rotating body. The first processor acquires data indicative of a position of a blade tip of the work implement. The first processor determines a target rotation angle of the rotating body from a straight line connecting the position of the rotation center of the rotating body and the position of the reference point of the conveyance vehicle, and a current position of the blade tip of the work implement. The first processor controls the rotating body to rotate according to the target rotation angle.

Abstract: An unmanned vehicle management system includes: a protection area setting unit that sets a protection area where entry of an unmanned vehicle traveling around a sprinkler vehicle is prohibited on the basis of a sprinkling state of a sprinkle spray provided in the sprinkler vehicle moving at a work site; and an output unit that outputs the protection area set by the protection area setting unit.

Abstract: A management system includes a position detection unit which obtains a position of a work machine, a posture detection unit which obtains a posture of the work machine, an object detection unit which obtains a three-dimensional shape of a buried object, a position calculation unit which obtains a position of the buried object by using the position of the work machine obtained by the position detection unit, the posture of the work machine obtained by the posture detection unit, and the three-dimensional shape of the buried object obtained by the object detection unit, and an information acquisition unit which acquires buried object information including at least the position of the buried object obtained by the position calculation unit.

Abstract: A controller controls a first drive source and a second drive source based on a moving speed of a motor grader measured by a speed sensor and a turning angular velocity of the motor grader measured by an IMU, to thereby independently control a rotation speed of each of a right front wheel and a left front wheel.

Abstract: A display method includes: acquiring a visible light image of a first target captured by a visible light imaging device; acquiring an infrared image of a second target captured by an infrared imaging device; calculating a visible light distance from the visible light imaging device to the first target for each of first partitioned areas defined in the visible light image; calculating an infrared distance from the infrared imaging device to the second target for each of second partitioned areas defined in the infrared image to correspond to the first partitioned areas; determining whether a difference between the visible light distance and the infrared distance is larger than a threshold for one of the first partitioned areas and one of the second partitioned areas corresponding to each other; combining the second partitioned area in which the difference is larger than the threshold with the visible light image to be displayed.

Abstract: A management system of a work site in which an unmanned vehicle and a manned vehicle operate in a mixed manner includes: a determination unit that determines whether or not the manned vehicle exists in a predetermined area of the work site; and a command unit that outputs a work command to cause the unmanned vehicle or the manned vehicle to travel to a work point set in a work place based on the determination result.

Abstract: This hydrocarbon deposition amount estimation device comprises a hydrocarbon deposition amount estimation unit that estimates the deposition amount of hydrocarbons deposited in an exhaust gas purification device of an internal combustion engine equipped with an oxidation catalyst on the basis of at least a first measured value corresponding to the intake air temperature of the internal combustion engine, a second measured value corresponding to the temperature of a cooling liquid of the internal combustion engine, and a third measured value corresponding to the exhaust gas flow rate of the internal combustion engine.

Abstract: A work machine is provided that can achieve an automatic brake retention function without hindering work. The work machine includes a vehicular body that travels, a work implement supported on the vehicular body, an accelerator operation device operated to increase a traveling speed of the vehicular body, a brake operation device operated to decrease the traveling speed of the vehicular body, and a controller. The controller performs automatic brake retention control to retain a braking force to maintain a travel-stopped state of the vehicular body when the traveling speed of the vehicular body becomes less than or equal to a threshold by operation of the brake operation device, and release the retention of the braking force by operation of the accelerator operation device. The controller determines whether work is being performed by the work implement, and when work is being performed, disables the automatic brake retention control.

Abstract: A data collection device is mounted on a work machine and collects data that is collectable from the work machine. The data collection device includes a collectable list generation unit and a collectable list notification unit. The collectable list generation unit updates a collectable list indicating a type of data that is collectable from the work machine, in a case in which a change has occurred in the type of data that is collectable. The collectable list notification unit transmits the updated collectable list to an external device outside the work machine.

Abstract: A work vehicle includes a power source, a travel device that includes a clutch capable of adjusting a degree of engagement between the power source and a transmission, and travels on a basis of power transmitted from the power source, working equipment, a drive device that operates the working equipment on a basis of power transmitted from the power source, and a control device that outputs a control command for controlling the degree of engagement of the clutch on a basis of a state of the working equipment.