Abstract: A model generation device executes an inspection information acquisition step, an error acquisition step, and a generation step. The inspection information acquisition step includes acquiring, for an inspection of a work machine, a time at which the inspection has been executed and presence or absence of a failure found from a result of the inspection. The error acquisition step includes acquiring a combination of error codes output before a time at which the inspection has been executed from a control device of the work machine. The control device of the work machine outputs error codes indicating types of error in a case where a state of the work machine is not a desired state. The generation step includes generating a prediction model for predicting the presence or absence of the failure from the combination of the error codes on the basis of the presence or absence of the failure and the combination of the error codes output before a time at which the inspection has been executed.

Abstract: A detection system includes: a three-dimensional sensor 11 that is attached to a work vehicle and detects an object that exists around the work vehicle; and a controller 20, that detects an obstacle and dust in a distinguished manner on a basis of object detection data from the three-dimensional sensor 11, object detection data from the three-dimensional sensor 11 includes a point cloud including a plurality of detection points defined on a surface of an object, and the controller 20 compares a number of detection points included in the object detection data with a determination threshold based on a point cloud density threshold defined by resolution of the three-dimensional sensor 11 for each grid obtained by dividing a detection range of the three-dimensional sensor 11, and detects an obstacle and dust in a distinguished manner.

Abstract: A training system accepts input of operation data from an operator. The training system detects a gaze of the operator during input of the operation data. The training system simulates a change in posture of the work machine in accordance with the operation data. The training system simultaneously displays a posture image representing a simulated change in the posture of the work machine and a gaze image representing a change in the gaze.

Abstract: A control system for a work machine automatically actuates a revolution braking device when a work implement is driven with no operation of a revolving body.

Abstract: A wheel loader includes a vehicle body, a work implement, a bucket-to-ground angle detection section, and a control section. The work implement operates with respect to the vehicle body and includes a bucket or a fork. The bucket-to-ground angle detection section detects information on a tilt angle of the bucket or the fork with respect to a gravity direction. The control section controls the tilt angle of the bucket or the fork with respect to the gravity direction based on a detection value of the bucket-to-ground angle detection section.

Abstract: A construction machine includes a vehicle body, a tank disposed in the vehicle body, and a sensor including a detection portion configured to detect the liquid. The tank accommodates a liquid. The sensor is supported by the tank. The tank includes a reduced width section formed to reduce a width of a predetermined range including the detection portion.

Abstract: A work machine includes a vehicle body, a work implement movably connected to the vehicle body, a plurality of actuators that are connected to the work implement and change an orientation of the work implement with respect to the vehicle body, an operating device that is operable to change the orientation of the work implement, a sensor that detects the orientation of the work implement, and a controller. The controller acquires a current orientation of the work implement, determines a target orientation of the work implement corresponding to an operation of the operating device, determines respective target stroke lengths of the plurality of actuators so that the work implement assumes the target orientation from the current orientation with a combination of stroke motions of the plurality of actuators, and controls the plurality of actuators based on the target stroke lengths.

Abstract: A revolution frame includes a bottom plate and a main beam that rises upward from the bottom plate. The main beam extends in a forward/rearward direction in a central portion in a lateral direction of the revolution frame. A battery attachment support body is arranged on the main beam of the revolution frame.

Abstract: A control system for a work machine includes: a revolving body; an operation device operated to revolve the revolving body; a revolving parking brake that can stop revolving of the revolving body; an automatic control command generator that outputs an automatic control command for automatically controlling the revolving body; and a brake controller that controls the revolving parking brake based on an operation state of the operation device or an output state of the automatic control command.

Abstract: A remote operation system for a work machine includes: a remote controller associated with a remote operation device and configured to transmit, based on an operation signal from the remote operation device, an operation command; a relay controller associated with a work machine and configured to receive the operation command; an operation command transmitter configured to transmit the operation command relayed by the relay controller to the work machine; and a management controller configured to connect communication between the remote controller that is specific and the relay controller that is specific.

Abstract: This heat exchanger includes a tube that has an inner surface facing an internal passage through which an exhaust gas discharged from an engine is able to flow and an outer surface facing an external passage through which cooling water for heat exchange with the exhaust gas is able to flow, and extends in a flow direction of the exhaust gas, and a riblet structure that is provided on the inner surface of the tube and has a plurality of convex portions extending in an extension direction of the tube, in which the riblet structure has a bottom wall surface that is aligned with the inner surface of the tube at a bottom between two adjacent convex portions among the plurality of convex portions.

Abstract: A control device for a work machine including a revolving body configured to revolve about a revolution center, a support part configured to support the revolving body, and a work implement that is attached to the revolving body and includes a work tool, includes a remainder estimation unit configured to estimate whether a load is remaining in the work tool, and an output unit configured to provide an output based on a result of the estimation on whether the load is remaining in the work tool.

Abstract: A system includes a work implement sensor attached to a work implement to detect work implement roll and pitch angles, and a controller. The controller acquires an actual frame length, a position of the first body connecting portion, and the roll and pitch angles. The controller calculates an assumed position of the first frame connecting portion when the yaw angle is assumed to be a predetermined angle based on the roll and pitch angles in the first posture, an assumed frame length indicating a distance between the assumed position of the first frame connecting portion and the first body connecting portion, the yaw angle of the work implement in the first posture based on a difference between the actual and assumed frame lengths, and a position of the predetermined portion of the work implement based on the roll, pitch and yaw angles of the work implement in the first posture.

Abstract: An underwater planting machine includes: a main body; a planting device which installs a planting member having algae or aquatic plants fixed thereto to dispose the algae or aquatic plants at a predetermined position on a water bottom; a traveling device which causes the main body and the planting device to travel; and a power source which drives the traveling device, wherein the planting device disposes the planting member at a predetermined position on the water bottom while being moved by the traveling device.

Abstract: A processing machine includes a tool configured to perform machine processing on a workpiece, and a depth camera configured to be installed such that the workpiece lies within an imaging range and to capture a depth of a subject. A position measurement unit calculates a three-dimensional position of a surface of the workpiece based on a depth image captured by the depth camera. A position matching unit, based on three-dimensional data representing a target shape of the workpiece and a three-dimensional position of the workpiece, calculates a three-dimensional position of the target shape in a case in which the workpiece and the target shape are superimposed.

Abstract: This engine diagnosis system is an engine diagnosis system for diagnosing a state of an engine included in a vehicle in accordance with an operating state of the engine and includes a data acquisition unit configured to acquire a detection value related to a parameter indicating the operating state of the engine a plurality of times at time intervals, a diagnosis unit configured to diagnose the state of the engine based on the detection value acquired by the data acquisition unit; and a result output unit configured to output a diagnosis result in the diagnosis unit, in which the diagnosis unit includes a determination unit configured to determine whether or not a failure has occurred in the engine based on a moving average of a plurality of the detection values acquired at time intervals and the latest detection value acquired by the data acquisition unit.

Abstract: A position at which a transport machine is to unload materials at a work site is appropriately determined. The transport machine transports the materials at the work site. A sensor detects an accumulated body of the materials accumulated on the ground at the work site. A controller provides a command for an operation of the transport machine. The controller recognizes the accumulated body on the basis of a detection result of the sensor and determines a position at which the transport machine is to unload the materials at the work site on the basis of information regarding the accumulated body.

Abstract: A control system for a work machine includes a key switch that is operated to be in one operation state of a key-off state, a key-on state, and a key-start state, an electric fan that generates an airflow for cooling an object to be cooled that is part of a work machine, and a controller that maintains the electric fan in a predetermined state in the key-on state.

Abstract: Provided is a control device of a work machine including a revolving body configured to revolve around a revolution center, and a work implement including a work tool and attached to the revolving body, in which, in a case where an instruction signal outputted by an operation unit configured to output an instruction signal concerning an automatic operation including the work implement is inputted into the control device, and an automatic operation assigned to the inputted instruction signal is equal to an automatic operation that can be performed on a basis of information regarding the work tool, the control device performs the automatic operation of the inputted instruction signal.

Abstract: The engine diagnosis system is an engine diagnosis system that diagnoses a state of an engine included in a vehicle in accordance with an operating situation of the engine, and includes a data acquisition unit that acquires a detection value related to a parameter indicating an operating state of the engine a plurality of times at time intervals, a filtering unit that extracts the detection value acquired in an operation state of the engine satisfying a preset condition from the plurality of detection values acquired by the data acquisition unit, a diagnosis unit that diagnoses the state of the engine based on the detection value extracted by the filtering unit, and a result output unit that outputs a diagnosis result in the diagnosis unit.