Abstract: A compaction management system includes a position calculation unit that, when a bucket is pressed against a compaction target ground, calculates a position of the bucket, a rolling compaction force calculation unit that, when the bucket is pressed against the compaction target ground, calculates a rolling compaction force applied to the compaction target ground using the attitude of the machine body, the attitude of the attachment, a pressure of a cylinder, and dimensions of the attachment, a rolling compaction record creation unit that creates a rolling compaction record in which the position calculated by the position calculation unit is associated with the rolling compaction force calculated by the rolling compaction force calculation unit, and a storage control unit that causes a storage device to store the rolling compaction record created by the rolling compaction record creation unit.

Abstract: A work machine includes: a first posture detection device which detects a posture of an upper slewing body with respect to a lower travelling body; a second posture detection device which detects a posture of a blade; a laser beam receiver which is provided to the upper slewing body and can receive a laser beam emitted from a laser beam emitter; and a calculation unit which calculates a height position of a cutting edge of the blade with respect to a surface to be constructed. The calculation unit calculates the height position of the cutting edge of the blade with respect to the surface to be constructed based on a laser beam receiving position where the laser beam is received by the laser beam receiver, a posture of the upper slewing body with respect to the lower travelling body, and a posture of the blade.

Abstract: Provided is a system or the like capable of reducing mental burdens on an operator who remotely operates a work machine, when an image range acquired by a real machine image pickup device loaded on the work machine is changed. A previous notice indicating a future change mode of a real space area projected in a work environment image displayed at a remote image output device 221 is output to a remote output interface 220. It is possible to make the operator who encounters a virtual sound source Vss displaced according to a displacement mode of the real space area and/or an icon image A1 in an arrow shape indicating the displacement mode of the real space area recognize beforehand that the real space area projected in the work environment image is to be displaced according to the displacement mode in the future.

Abstract: A memory stores, in advance, target line information indicating an arrangement target of an object to be conveyed and related to a target line denoted by at least one of a curve or a polyline. A controller is configured to: calculate, based on the target line information, target information which is at least one of information about a target coordinate of the object and information about a target direction of the object; calculate, based on the at least one of the coordinate of the object and the direction of the object detected by the detector, detection information which is comparable with the target information; calculate a deviation of the detection information from the target information; and cause a display to display a moving direction of the object which allows the deviation to decrease.

Abstract: Provided is a compaction management system capable of accurately managing the compaction state of a compaction target ground. The compaction management system includes a compaction-pressing-record production unit, a storage device, and a final-compaction-pressing-record selection unit. The compaction pressing record production unit produces a plurality of compaction pressing records, each of which includes the pressing compaction position and the compaction pressing force which are associated with each other. The storage device stores the plurality of compaction pressing records.

Abstract: A work assist device includes a body coordinates information acquiring unit, a body orientation information acquiring unit, a work member position information acquiring unit, a specific part coordinates computing unit, a placement information receiving unit, a distance information input unit, a construction surface computing unit, a storage unit, and a construction information output unit. The specific part coordinates computing unit can compute absolute coordinates of a specific part of a work member, from acquired information from each acquiring unit. The construction surface computing unit determines an equation for a construction surface in an absolute coordinate system at a work site, from absolute coordinates of three ground reference points at which the specific part is placed in order and three pieces of distance information indicating a distance from the ground reference points to the construction surface.

Abstract: A memory stores, in advance, target line information indicating an arrangement target of an object to be conveyed and related to a target line denoted by at least one of a curve or a polyline. A controller is configured to: calculate, based on the target line information, target information which is at least one of information about a target coordinate of the object and information about a target direction of the object; calculate, based on the at least one of the coordinate of the object and the direction of the object detected by the detector, detection information which is comparable with the target information; calculate a deviation of the detection information from the target information; and cause a display to display a moving direction of the object which allows the deviation to decrease.

Abstract: To allow a worker to visually recognize information for assisting transportation of a transport object and the transport object at the same time. A guidance system includes a guidance device and a controller. The guidance device has a display portion. The controller stores information of a target position of a transport object. The controller calculates a detected position which is a current position of the transport object based on a detection result of a detection portion, and further calculates a position deviation which is a deviation of the detected position from a target position. The display portion displays information of the position deviation.

Abstract: A point generating unit of a mobile terminal generates teaching point information associating a teaching position that teaches the work machine a position of the attachment in a series of movements to be performed by the work machine with orientation information indicating a target orientation at the teaching position, based on a slewing angle of an upper slewing body and on orientation information on the attachment. A point changing unit changes the generated teaching point information. When the teaching point information is changed, an instruction generating unit of the work machine generates an automatic operation instruction for automatically operating a slewing device and the attachment, based on the changed teaching point information. An operation control unit of the work machine automatically operates the slewing device and the attachment, based on the automatic operation instruction.

Abstract: A compaction management system includes a position calculation unit that, when a bucket is pressed against a compaction target ground, calculates a position of the bucket, a rolling compaction force calculation unit that, when the bucket is pressed against the compaction target ground, calculates a rolling compaction force applied to the compaction target ground using the attitude of the machine body, the attitude of the attachment, a pressure of a cylinder, and dimensions of the attachment, a rolling compaction record creation unit that creates a rolling compaction record in which the position calculated by the position calculation unit is associated with the rolling compaction force calculated by the rolling compaction force calculation unit, and a storage control unit that causes a storage device to store the rolling compaction record created by the rolling compaction record creation unit.

Abstract: An operating machine information acquisition unit acquires information on an operating machine, including position information on the operating machine. A terminal device is carried by a worker around the operating machine, capable of displaying information, and includes a terminal device information acquisition unit. The terminal device information acquisition unit acquires position information and orientation information of the terminal device. A calculation unit causes the terminal device to display state information relating to a state of the operating machine based on the position information of the operating machine and the position information and the orientation information of the terminal device.

Abstract: In a blade control device, a blade operation control part outputs a command for raising and lowering a blade such that a position deviation between a blade position calculated by a blade position calculating part and a blade target position approaches zero in a case where a blade load is equal to or less than a second load threshold value, and outputs a command for raising the blade in a case where the blade load is greater than the second load threshold value. In a case where an update condition is satisfied, the update condition being set in advance so as to associate the blade load and a first load threshold value with each other, a target position setting part updates the blade target position using the blade position obtained when the update condition is satisfied as a reference.

Abstract: A blade operation control part of a blade control device controls operation of a blade such that when a blade load is equal to or less than a first load threshold value and a position deviation is equal to or greater than a position threshold value, the blade is lowered to make the position deviation approach zero. The blade operation control part controls operation of the blade such that the blade is raised regardless of the position deviation when the blade load is equal to or greater than a second load threshold value.

Abstract: A work machine includes: a first posture detection device which detects a posture of an upper slewing body with respect to a lower travelling body; a second posture detection device which detects a posture of a blade; a laser beam receiver which is provided to the upper slewing body and can receive a laser beam emitted from a laser beam emitter; and a calculation unit which calculates a height position of a cutting edge of the blade with respect to a surface to be constructed. The calculation unit calculates the height position of the cutting edge of the blade with respect to the surface to be constructed based on a laser beam receiving position where the laser beam is received by the laser beam receiver, a posture of the upper slewing body with respect to the lower travelling body, and a posture of the blade.

Abstract: In a blade control device, in a case where an update condition set in advance is satisfied, a virtual design surface setting part sets a virtual design surface, using a blade position when the update condition is satisfied as a reference, at an angle equivalent to a vehicle body angle, and a blade operation control part restricts raising and lowering operation of a blade such that the blade conducts the raising and lowering operation above the virtual design surface.

Abstract: A device capable of appropriately setting a warning zone in the vicinity of a construction machine and appropriately allowing a person in the vicinity of the construction machine to recognize the warning zone includes a first operational information acquisition section for obtaining first operational information indicating a state of at least either a slewing motion or a travel motion of the construction machine, a zone setting section for setting the warning zone in the vicinity of the construction machine according to the first operational information, and a display forming section for forming a display that allows visual recognition of the warning zone, using visible light.

Abstract: A hydraulic drive apparatus capable of automatic control with high accuracy regardless of regeneration operation includes a boom flow rate control valve, an arm flow rate control valve, a regeneration control valve, a pump control device for performing horsepower control, a posture detection device, a boom flow rate control device switchable between a normal control mode and an automatic control mode, and a regeneration control device. The boom flow rate control device adjusts the boom flow rate in the automatic control mode so that a work attachment moves along a target locus. The regeneration control device sets the regeneration control valve to a regeneration position in a low load situation and to a regeneration cut position in a high load situation, and lowers the regeneration rate in the low load situation when the boom flow rate control device is switched to the automatic control mode.

Abstract: A hydraulic excavator includes a lower travelling body, an upper slewing body attached to the lower travelling body in a rotatable manner about a slewing axis, distance sensors, the distance sensors being capable of detecting a distance to an object to be detected, the object being located in a circumference of the lower travelling body about the slewing axis; a slewing angle sensor that detects a slewing angle of the upper slewing body with respect to the lower travelling body; and a controller that specifies an entry prohibited area in which ingress of the lower travelling body is prohibited, based on the distance detected by the distance sensors, that generates information about safety with reference to a travelling direction of the lower travelling body based on the entry prohibited area and the slewing angle detected by the slewing angle sensor, and that outputs the information.

Abstract: A control section determines a monitoring region, a region wherein an obstacle is to be monitored, the monitoring region not including the lower travelling body. The control section changes the monitoring region so as not to include the lower travelling body based on a turn angle detected by the turn angle detection section. The control section limits operation of at least one of travelling of the lower travelling body and turning of the upper slewing body when the obstacle detection section detects an obstacle being present in the monitoring region.

Abstract: When an object detected by a distance measuring sensor is located in a monitoring region set in a blind spot of an operator, an obstacle determination section determines the detected object as an obstacle. Then, the obstacle determination section sets a monitoring region so that a region indicating a lower travelling body (2) is excluded according to a slewing angle detected by an angle sensor. Based on the slewing angle detected by the angle sensor, a stop control section determines a component, of at least one of the lower travelling body and an upper slewing body, which has a possibility that a construction machine collides with the obstacle when the component is operated, and stops operation of the determined component.