A hydraulic excavator includes: operation devices that output, based on operation by an operator, operation signals to operate a lower travel structure, an upper swing structure, and a front work implement; solenoid valves 23a, 23b, 24a, and 24b that limit the operation signals outputted from the operation devices; and a controller that controls the solenoid valves based on detection signals from sensors, and that detect objects in the surroundings of a machine body. The detection ranges of the sensors, and include a first detection range TR defined based on travel performance of the lower travel structure and a second detection range SW defined to be along a swing radius of a rear end of the upper swing structure. As a result, the influence of excessive alarm on the working operator can be reduced while enhancing detection accuracy by setting the detection range according to action range of the work machine.

Provided is a work machine which can achieve both of excellent operability when an operator manually operates a machine body or a work device and an accuracy of control of the machine body or the work device when a controller performs automatic control. The controller is configured to, in a case where the automatic control function selector switch gives an instruction to disable the automatic control function, adjust an opening amount of a bleed-off valve to a maximum opening amount or an opening amount corresponding to input amounts of control levers, and in a case where the automatic control function selector switch gives the instruction to enable the automatic control function, adjust the opening amount of the bleed-off valve, in at least part of an operation region of the control levers, so as to be smaller than the opening amount with the instruction to disable the automatic control function being given.

A control system for construction machinery includes 3D camera configured to recognize an object located around construction machinery and capture an image, a position information receiving device configured to obtain a reference coordinate corresponding to a position of the construction machinery, a data processing device configured to obtain a relative coordinate of the object relative to the construction machinery from the image and convert the relative coordinate based on the reference coordinate to obtain a three-dimensional coordinate, and a control device configured to display the image having the three-dimensional coordinate on a screen.

The present disclosure discloses an engineering machinery equipment, and a method, system, and storage medium for operation trajectory planning thereof, and relates to the field of artificial intelligence, automatic control, and engineering machinery technologies. A method can include: acquiring three-dimensional sensing data of a material pile, to construct a three-dimensional model of the material pile based on the three-dimensional sensing data; determining a loading operation position of the engineering machinery equipment on the material pile based on the three-dimensional model of the material pile and structural design information of the engineering machinery equipment; and acquiring position information of a mechanical structural component of the engineering machinery equipment, and performing operation trajectory planning based on the position information of the mechanical structural component and the loading operation position, to generate an operation trajectory of the mechanical structural component executing a material loading operation.

A specifying part sets: a first end point which is on a straight line and attributes to a first apex of a plurality of apexes of a frame that is at a first side in a front orthogonal direction and closer to a to-machine side; a second end point which is on the straight line and attributes to a second apex of the plurality of apexes of the frame that is at a second side in the front orthogonal direction and closer to the to-machine side; and a midpoint between the first end point and the second end point. The specifying part determines one of the first end point, the second end point, and the midpoint as a coordinate indicative of a position of an object according to an operation pattern of an operating part.

An excavator system for locating an underground utility line, the system comprising: a signal transmitter installed on the excavator; a signal receiver installed on the excavator; a monitor; and a control unit, in communication with the receiver, wherein the control unit is adapted (a) to analyze a vicinity of the receiver from the underground utility line by an intensity of a received signal by the receiver, and (b) to display indication of the vicinity on the monitor.

A work machine control system is provided with an acquisition process unit and a limit process unit. The acquisition process unit acquires a detection result of an object around a machine body of a work machine in a state incapable of operating the work machine. The limit process unit creates a limit state capable of limitedly operating the work machine, when the detection result meets a predetermined condition and then a gate lock lever is so operated as to create a state capable of operating the work machine.

A hydraulic excavator having a plurality of front implement members, including a bucket, has a controller that controls the work implement by using: excavation assistance control that controls the work implement such that the bucket moves along a predetermined target excavation surface; and deviation prevention control that prevents deviation of the work implement from a predetermined work area by decelerating or stopping operation of a subject front implement member that is included in the plurality of front implement members and that can deviate the work implement from the work area. The controller controls the work implement such that when the controller controls the work implement by using both the excavation assistance control and the deviation prevention control, an operation direction of the bucket approximates to an operation direction of the bucket that is to be generated when the work implement is controlled by using only the excavation assistance control.

There are provided: a monitoring apparatus that detects an obstacle located around a hydraulic excavator, and outputs obstacle information; and a controller that calculates an operation limiting command for limiting operation of the hydraulic excavator in accordance with an intrusion prohibited area set on the basis of a result of comparison between a movable range of the hydraulic excavator and a monitoring range of the monitoring apparatus and in accordance with the obstacle information from the monitoring apparatus. Thereby, it is possible to appropriately set an intrusion prohibited area, and reduce detection failures and detection errors.

A control device outputs an operation signal of a work equipment and a swing body for moving a work equipment to a loading point when receiving a loading command signal. The control device does not output a dumping operation signal for causing the bucket to dump earth in a case where an azimuth direction in which the swing body faces is within a first region from a starting point azimuth direction to a predetermined reference azimuth direction, the starting point azimuth direction being an azimuth direction in which the swing body faces when the loading command signal is received. The control device outputs the dumping operation signal in a case where the azimuth direction is within a second region from the reference azimuth direction to an end point azimuth direction in which the swing body faces when the work equipment is positioned at the loading point.