Abstract: A working status indicating a status related to the present work of a hydraulic excavator 1 is determined on the basis of operation signals output from a control lever 24, posture information output from inertial measuring devices 27 to 30, load information output from pressure sensors 32 and 33, and a work area set by a display input device 26, an operation form indicating contents of an operation in operation correction control of a front work implement 12 is decided from a plurality of operation forms set in advance, according to the determined working status, and the operation correction control is performed such that the front work implement moves according to the operation form. Thus, an appropriate assisting operation can be performed in machine control, so that the work accuracy can be improved.

Abstract: An automated operation controller 45 of an automated work system 10 includes: a work status management section 452 that selects a work content according to a work DB 456 that records a work plan for a hydraulic excavator 1 and a work order in the work plan, creates an operation plan based on the selected work content and information on the surrounding environment measured by laser scanners 34, and outputs a control signal to a vehicle body controller 41 based on the operation plan; and an abnormal object detection section 454 that detects an abnormal object present on a work site based on the information on the surrounding environment measured by the laser scanners 34. When the execution of the operation plan is determined to be hindered by the presence of the abnormal object, the work status management section 452 selects another work content from the work plan.

Abstract: In a case that a change instruction to instruct to change a work area A1 to a requested work area A2 is input, whether or not change of the work area A1 to the requested work area A2 is possible is judged on the basis of the work area A1, location information of a machine main body configured by an upper swing structure 10 and a lower track structure 9, and posture information of a work device 15, and the work area A1 is overwritten with the requested work area A2 to change the work area in an only case that it is judged that change is possible. This can suppress interference between plural work machines.

Abstract: A construction machine includes a posture sensor provided on a front member of a front work implement. An external environment recognition device detects an object around a main body, and a controller calculates a dead angle range from a recognition range of the external environment recognition device. An assumed movement range in which a moving body is assumed to exist in the dead angle range in a period of time determined in advance is calculated; and a movable range within which the front work implement is movable in a period of time determined in advance is calculated on the basis of the posture information detected by the posture sensor. Preventative control is then performed for preventing contact between the moving body and the front work implement on the basis of the assumed movement range of the moving body and the movable range of the front work implement.