Abstract: A working machine 1 includes a design data obtainment unit 29, a topography measuring device 30, and a controller 21. The controller 21 extracts peripheral area shape data from the design data in the construction-site coordinate system, maps similar shape portions between the extracted peripheral area shape data and the current topography data in the current topography coordinate system, calculates a coordinate transformation matrix to transform from the current topography coordinate system to the construction-site coordinate system so that a difference in coordinate values of the mapped shape portions is minimized, and transforms the self-position and posture of the working machine 1 and the current topography data from coordinates in the current topography coordinate system to coordinates in the construction-site coordinate system using the calculated coordinate transformation matrix.

Abstract: A controller 21 mounted on a work machine calculates a target carried load representing a target value for a carried load carried by the work machine on the basis of loadage of a transportation machine in case the loadage is changed, calculates a minimum integration load value depending on the magnitude of the calculated target carried load, and calculates the loadage by integrating the carried load in case it is determined that a work implement has performed a loading operation on the transportation machine and in case the calculated carried load is equal to or larger than the minimum integration load value.

Abstract: A hydraulic excavator includes a controller that determines the start of loading work for a dump truck and the end of the loading work on the basis of the operation state of the hydraulic excavator at the time of sensing of a work instruction by a horn, integrates a work-target-object weight measured since the start of the loading work until the end of the loading work, and calculates a loaded amount of the dump truck.

Abstract: A load value W, which is a weight of a transportation target carried by a front work implement 12, is calculated based on a work load of a boom cylinder 16 of the front work implement 12, and on posture information which is information associated with a posture of the front work implement 12. A load threshold T used for determining whether to recalibrate a load measuring system is changed in accordance with a posture index value which is an index associated with the posture of the front work implement 12 and is obtained based on the posture information. Whether to recalibrate the load measuring system is determined based on the load value W and the load threshold T. A determination result is displayed on a display screen 30 to notify an operator of the determination result. In this manner, deterioration of measuring accuracy is more appropriately detectable regardless of variations of a posture of a front work implement of a work machine.

Abstract: A controller (18) calculates, based on a target loading weight (P) that is a target value of a total weight of working objects to be loaded into a hauling vehicle, a set loading time number indicative of a loading time number required for the construction machine before the target loading weight (P) is reached and bucket shape information indicative of a shape of a bucket (7), an appropriate loading weight (Wa) that is an appropriate value of the weight of the working objects to be loaded into the hauling vehicle by a single time loading work by the construction machine, creates an appropriate amount illustration (30) that is an illustration of a state at which the working objects of the appropriate loading weight (Wa) are loaded into the bucket and that illustrates the state of the working objects, based on the appropriate loading weight (Wa) and the bucket shape information, and controls a display device (19) to display an illustration (29) of the bucket (7) and the appropriate amount illustration (30) in a

Abstract: A hydraulic excavator (1) including a controller (21) having a load computing section (52) configured to compute a load of a work target material on the basis of thrust information about a boom cylinder (16) during the period when a front work implement (12) is performing a transporting operation of a work target material, the controller (21) further including: a velocity limiting value computing section (55) configured to compute a limiting value (Vlim) of a velocity of a boom cylinder (16) on the basis of posture information about the work implement (12) at a time of starting the transporting operation; a velocity command correction section (50) configured to correct a velocity command in such a manner that the velocity of the boom cylinder is equal to the limiting value (Vlim) when the velocity of the boom cylinder exceeds the limiting value and output the corrected velocity command; and a drive signal generation section (51) configured to generate and output a drive signal for the boom cylinder on the bas

Abstract: A controller 21 mounted on a work machine calculates a target carried load representing a target value for a carried load carried by the work machine on the basis of loadage of a transportation machine in case the loadage is changed, calculates a minimum integration load value depending on the magnitude of the calculated target carried load, and calculates the loadage by integrating the carried load in case it is determined that a work implement has performed a loading operation on the transportation machine and in case the calculated carried load is equal to or larger than the minimum integration load value.

Abstract: A load value W, which is a weight of a transportation target carried by a front work implement 12, is calculated based on a work load of a boom cylinder 16 of the front work implement 12, and on posture information which is information associated with a posture of the front work implement 12. A load threshold T used for determining whether to recalibrate a load measuring system is changed in accordance with a posture index value which is an index associated with the posture of the front work implement 12 and is obtained based on the posture information. Whether to recalibrate the load measuring system is determined based on the load value W and the load threshold T. A determination result is displayed on a display screen 30 to notify an operator of the determination result. In this manner, deterioration of measuring accuracy is more appropriately detectable regardless of variations of a posture of a front work implement of a work machine.

Abstract: A controller (18) calculates, based on a target loading weight (P) that is a target value of a total weight of working objects to be loaded into a hauling vehicle, a set loading time number indicative of a loading time number required for the construction machine before the target loading weight (P) is reached and bucket shape information indicative of a shape of a bucket (7), an appropriate loading weight (Wa) that is an appropriate value of the weight of the working objects to be loaded into the hauling vehicle by a single time loading work by the construction machine, creates an appropriate amount illustration (30) that is an illustration of a state at which the working objects of the appropriate loading weight (Wa) are loaded into the bucket and that illustrates the state of the working objects, based on the appropriate loading weight (Wa) and the bucket shape information, and controls a display device (19) to display an illustration (29) of the bucket (7) and the appropriate amount illustration (30) in a

Abstract: A hydraulic excavator (1) including a controller (21) having a load computing section (52) configured to compute a load of a work target material on the basis of thrust information about a boom cylinder (16) during the period when a front work implement (12) is performing a transporting operation of a work target material, the controller (21) further including: a velocity limiting value computing section (55) configured to compute a limiting value (Vlim) of a velocity of a boom cylinder (16) on the basis of posture information about the work implement (12) at a time of starting the transporting operation; a velocity command correction section (50) configured to correct a velocity command in such a manner that the velocity of the boom cylinder is equal to the limiting value (Vlim) when the velocity of the boom cylinder exceeds the limiting value and output the corrected velocity command; and a drive signal generation section (51) configured to generate and output a drive signal for the boom cylinder on the bas

Abstract: A construction machine includes: a guidance apparatus having a guidance display section for displaying a target surface for an object to be worked on by a work implement based on predetermined design data with respect to the object to be worked on by the work implement and positional information of the work implement and displaying the positional information of the work implement on a guidance monitor in a cabin of the construction machine; and an obstacle detecting apparatus having an obstacle position acquisition section for acquiring positional information of an obstacle detected around the construction machine. The guidance display section of the guidance apparatus displays the positional information of the obstacle acquired by the obstacle position acquisition section of the obstacle detecting apparatus on the guidance monitor. Thus, while viewing the screen of the guidance apparatus, it is possible to present the operator reliably with real-time information of the obstacle.