A GPR (ground penetrating radar) system includes a digging machine having a bucket, a GPR unit and a post-processing unit. The GPR unit is mounted on the bucket and includes at least one GPR antenna and a data processor. Both the at least one antenna and the data processor are mounted within the bucket. The data processor detects a presence of a hazard during a progressive removal of layers of soil. The post-processing unit is installed in a cabin of the digging machine and provides an alert when the data processor detects the hazard during the removal of soil.

The invention relates to a device for maintaining and/or repairing a construction machine, with a mobile maintenance station that can be placed at the jobsite where the construction machine is being used, comprising a 3D printer for printing replacement parts for the construction machine on the basis of component data and/or a mobile display device for displaying repair information on the construction machine on the basis of component data, wherein a data supply station that is at a separate location from the maintenance station is provided, can be connected to the maintenance station by way of a communication link and is configured for providing the maintenance station with 3D printing data for printing the replacement part, and the maintenance station is configured for printing the replacement part layer by layer on the basis of the 3D printing data received from the data supply station.

System (1-3) for earth moving machinery (100), comprising: a plurality of wear elements (10-15) adapted for coupling with a blade (111) of digging implements (110) of an earth moving machine (100); one or more sensors (20) for measuring forces, each sensor of the one or more sensors (20) being arranged in one wear element of the plurality of wear elements (10-15) or between two wear elements of the plurality of wear elements (10-15); and central control means (50) for processing measurements of the one or more sensors (20) in order to calculate force withstood by the wear elements (10-15).

An engine on an excavator provides power to a hydraulic pump that pumps hydraulic fluid under pressure to a hydraulic actuator. The hydraulic actuator is controlled to place a load on the engine. Engine response to the load placed on it by the hydraulic actuator is detected and logged. The logged engine response data can be accessed to identify engine response.

An excavator including a lower traveling body; an upper turning body turnably mounted to the lower traveling body; a work attachment attached to the upper turning body; an imaging device mounted to the upper turning body; a hydraulic actuator; a hydraulic pump configured to supply hydraulic oil to the hydraulic actuator; an electric motor configured to drive the hydraulic pump; an operation device of an electric type configured to operate the hydraulic actuator; and a control device configured to control the electric motor, wherein in response to determining that the operation device is not operated, the control device causes the hydraulic pump to automatically stop, and subsequently, in response to determining that an operation with respect to the operation device is started, the control device causes the hydraulic pump to be automatically activated.

Provided is a device for controlling a working unit of construction equipment which comprises a hydraulic control device configured to hydraulically control a working unit and operated by an operating lever, a plurality of sub-electronic control units (ECU) electrically connected with the hydraulic control device, a main ECU configured to receive information on states of the hydraulic control device and the plurality of sub-ECUs, a relay configured to apply or cut off electric power to the plurality of sub-ECUs by a signal generated from the main ECU, and an emergency mode switch configured to turn an emergency mode on/off, wherein, when the emergency mode switch is turned on, the relay to which electric power is cut off according to a main ECU's failure diagnosis signal applies or cuts off electric power to the plurality of sub-ECUs by movement of the operating lever.

Provided is a work machine including a front work device, the work machine including a state amount sensor that senses a state amount relating to an action state of the work device and a controller that controls an action of the work machine on the basis of an operation signal transmitted from a remote device by radio communication. The controller assesses a communication status of the radio communication, and, when restricting the action of the work machine on the basis of a result of the assessment, eases the restriction on the action of the work machine, depending on a sensing result from the state amount sensor. As a result, it is possible to appropriately restrict action on the basis of a communication status, while suppressing worsening of workability.

A working machine includes an undercarriage supported by first and second ground engaging units powered by first and second drive units, a main frame supported by the undercarriage, a first sensor configured to sense an orientation and relative angular motion of the main frame with respect to the undercarriage, a second sensor configured to sense an orientation and relative angular motion of the main frame in an external reference frame independent of the undercarriage, and a controller functionally linked to the first and second sensors. The controller is configured to receive commands corresponding to an intended movement of the first and second ground engaging units, and generate control signals to the first and second drive units to achieve or maintain the intended movement taking into account a detected orientation of the main frame relative to the undercarriage and a detected orientation of the main frame in the external reference frame.

A hose assembly for a hydraulic system is shown. The hose assembly includes a first hose that fluidly couples a pump with a hydraulic actuator using a first port. The first hose includes a first electronic device that provides identification information for the first hose. The hose assembly further includes a second hose that fluidly couples the hydraulic actuator with a reservoir tank using a second port. The second hose includes a second electronic device that provides identification information for the second hose. The hose assembly further includes a controller that receives a first connection signal and a second connection signal. The controller is further configured to determine that the first hose has fluidly coupled using the first port based on the first connection signal and determine that the second hose has fluidly coupled using the second port based on the second connection signal.

A hydraulic system of a construction machine includes: control valves interposed between a main pump and hydraulic actuators; and first solenoid proportional valves connected to pilot ports of the control valves. The hydraulic system further includes: a relief valve for the main pump, the relief valve including a pilot port; and a second solenoid proportional valve connected to the pilot port of the relief valve by a secondary pressure line and connected to an auxiliary pump by a primary pressure line. A switching valve including a pilot port connected to the secondary pressure line by a pilot line is interposed between the auxiliary pump and the first solenoid proportional valves.