A shovel according to an embodiment of the present invention includes a lower traveling body, an upper turning body rotatably mounted on the lower traveling body, an operator's compartment provided to the upper turning body, a display device provided in the operator's compartment, and an input device provided in the operator's compartment. The display device is capable of displaying a setting screen for a construction support system using information and communication technology, and a function to switch a screen displayed on the display device to the setting screen is assigned to the input device.

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.

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.

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 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 calibration device for an imaging device includes an imaging data acquisition unit that acquires imaging data of a known external target installed at a known position outside a work range of work equipment, the imaging data being obtained by imaging of at least one imaging device provided in a work machine including the work equipment, an external target position acquisition unit that acquires a position of the known external target, and a calibration unit that calibrates the imaging device based on the position of the known external target, which is acquired by the external target position acquisition unit, and the imaging data of the known external target, which is acquired by the imaging data acquisition unit.

A display mode of a picked-up image in a central image output device 2210 (specified image output device) is variably controlled so as to display all of respective specified portions PPL and PPR of a pair of pillars 4240L and 4240R configuring a cab 424 in the central image output device 2210 (specified image output device). The specified portions PPL and PPR are part of the pillars 4240L and 4240R overlapping a specified image region R that extends in a belt shape between left and right bezels 2210L and 2210R.

A one-handed joystick for cranes allows an operator to make all necessary motions with a single hand and arm for manipulating various components of a crane. The one-handed joystick includes a rotatable cylinder bar, a rotatable ring, an industrial joystick base, a rocker switch and at least two push button switches. Motions of the rotatable cylinder bar, the rotatable ring, the industrial base and the rocker switch are used to raise and lower the auxiliary hoist; raise and lower the telescopic boom for luffing a hoist; raise and lower the main hoist; slew the boom base in a clockwise or counterclockwise direction; and extend or retract the telescoping boom. The speed of main and auxiliary hosts may be changed with the two push button switches. A Deadman's switch may be installed on a back side of the rotatable cylinder bar.

A one-handed joystick for excavators allows an operator to make all necessary motions with a single hand and arm for manipulating an excavator tool. The one-handed joystick includes a rotatable cylinder bar, a rotatable ring and an industrial joystick base. The rotatable cylinder bar is grasped with a hand. The industrial base is moved front to back, or right to left. The following are preferable hand/arm motions. A downward hand curl is associated with a bucket digging motion; an upward hand curl is associated with a bucket dump; a forearm forward push is associated with a boom/stick extension; a forearm reward pull is associated with a boom/stick retraction; a left-hand movement is associated with swinging the excavator left; a right-hand movement is associated with swinging the excavator right; a clockwise hand twist is associated with a stick/boom extension; and a counter clockwise hand twist is associated with a stick/boom retraction.

A property calculation section of the controller calculates a horizontal distance between a boom proximal end portion and an arm distal end portion based on a detection signal input from an attitude detector, calculates a weight of the distal end attachment based on the horizontal distance and a detection signal input from a holding pressure detector in a state where a distal end attachment is disposed at a pressure release position, and calculates a gravity center position of the distal end attachment based on the weight of the distal end attachment, a detection signal input from the holding pressure detector, and a detection signal input from the attitude detector in a state where the distal end attachment is disposed at a displacement position that is a position different from the pressure release position.