A server and so forth are provided that enable an operator to gain experience in operation by a simulation while referring to a situation of an operation of a work machine by the operator himself/herself or another operator. A second operator can designate one time series of work environment images from archives registered in a database 102 through a remote input interface 210. Accordingly, the second operator can browse the time series of the designated work environment images on a remote output interface 220. The second operator can cause the remote output interface 220 to output a time series of simulation images which represent an action manner and an environment changing manner of a work machine at a virtual work site in accordance with a simulation operation manner in a remote operation mechanism 211.

A method for automatically controlling an operation of a work vehicle during the performance of an earthmoving operation may include receiving an input associated with initiating an automated dumping operation to allow a load of worksite materials contained by an implement of a lift assembly of the work vehicle to be released onto a dump pile. The method may further include determining a current vertical height of the dump pile based on data from at least one sensor and determining a dumping height of the implement for performing the dumping operation based on the current vertical height. Additionally, the method may include controlling an operation of the lift assembly to move the implement to the dumping height and then to pivot the implement from a load-carrying position to a load-dumping position to release the load of worksite materials onto the dump pile from the dumping height.

Provided is a movement identification device capable of identifying a specific motion of a construction machine based on the output of a sensor attached to the construction machine with higher accuracy than the conventional technology. A movement identification device 100 includes a waveform generation unit 111, a waveform storage unit 121, and a motion identification unit 112. The waveform generation unit 111 generates a force waveform based on the signal of a force sensor that detects the force acting on the construction machine and an attitude waveform based on the signal of an attitude sensor that detects the attitude of the construction machine. The waveform storage unit 121 stores reference waveforms, which are combinations of force waveforms and attitude waveforms corresponding to specific motions. The motion identification unit 112 compares a motion waveform, which is a combination of a force waveform and an attitude waveform corresponding to an arbitrary motion of a construction machine, with the reference waveforms stored in the waveform storage unit 121 to identify a specific motion in the arbitrary motion of the construction machine.

Provided are a server and system which allow a plurality of people involved in work to share information about an object requiring attention in a work area. A work environment image, which indicates an extension mode of a target object in a real space in a target object image region R that is a part of a captured image obtained through an imaging device (e.g., an imaging device 612) of a first client (e.g., a worker terminal 60) and target object related information, is outputted to an output interface (e.g., a remote output interface 220) of a second client (e.g., a remote operation device 20).

In a control method for construction machinery, an operation performed by the construction machinery is divided into a plurality of subordinate works. A current subordinate work currently performed by the construction machinery is determined. A maximum absorbing torque of a hydraulic pump is adjusted according to the determined subordinate work. An engine speed change map is adjusted according to the determined subordinate work.

In a work machine, a load information output part outputs a load calculated by a load calculation part as load information before a piston member shifting toward a stroke end reaches a specific position, and a load storage part stores the load calculated by the load calculation part as a specific load when the piston member shifting toward the stroke end reaches the specific position. The load information output part further outputs the specific load as the load information after the piston member shifting toward the stroke end enters a specific region.

In an overturning-risk presentation device according to the present invention, a reception unit is configured to receive posture data of a work machine of a time when the work machine detects an overturning risk. A calculation unit configured to calculate the number of times of detection of the overturning risk for each inclination direction of the work machine based on the posture data. A generation unit configured to generate an inclination frequency image representing the number of times of detection of the overturning risk for each inclination direction of the work machine. An output unit configured to output the generated inclination frequency image.

A first process acquires a true value of the position of a predetermined portion. A second process acquires a reference position of a work machine. A third process determines a plurality of correction candidate values of a parameter. The correction candidate values are used so that a calculation value of the position of the predetermined portion calculated based on the parameter from the reference position matches the true value. A fourth process calculates an assessment value indicative of the difference between the true value and a calculation value for each of plurality of correction candidate values. A fifth process determines a confirmation correction value of the parameter from among the plurality of correction candidate values based on the assessment value.

A GNSS drive control device includes: a power signal reception unit that is configured to receive a power-off signal for a GNSS controller, and a shutdown processing unit that is configured to perform shutdown processing of the GNSS controller after a predetermined time has elapsed from reception of the power-off signal.

One embodiment of a hydraulic system for a machine has a first hydraulic circuit including a first pump coupled to a first hydraulic actuator configured to move a first implement of the machine. A second hydraulic circuit includes a second pump coupled to a second hydraulic actuator configured to move a second implement. An electric motor mechanically couples to the first pump and to the second pump. An operator interface receives input from an operator requesting movement of the first and second implements. A controller communicatively coupled to the electric motor and to the operator interface determines, based on the requested movement of the first and second implements respectively, first and second flow allocations respectively for the first and second pumps and determines respective target displacements for the first and second pumps. The controller also determines first and second target electric motor speeds based on the target displacements for the first and second pumps, respectively, and controls the electric motor to operate at the larger of the first and second target electric motor speeds.