Abstract: A remote operation device receives a changeover instruction to make a changeover between an actual work mode, a simulation mode, and a test mode, and executes the received mode. A server includes a work history database that stores an actual work record in the actual work mode, a simulation record in the simulation mode, and a test result in the test mode as a work history. The server calculates a skill level of an operator for a remote operation based on the work history stored in the work history database, and presents the calculated skill level.

Abstract: A vehicle-side control unit determines whether a long distance communication mechanism is available or not, when determining that the long distance communication mechanism is available, controls a first vehicle-side communication unit to transmit operation data via the long distance communication mechanism, and when determining that the long distance communication means is not available, causes a vehicle-side storage unit to store the operation data, and further determines whether a transmission start command is received from a tablet or not, and when determining that the transmission start command is received, controls a second vehicle-side communication unit to transmit the operation data stored in the vehicle-side storage unit via a short distance communication mechanism.

Abstract: On detection of a difference between the operation amount detected by a first sensor and the operation amount received by a first communication unit from a slave, a master side controller executes at least one of stop control to automatically stop a construction machine and alarm control to cause a warning device to issue an alarm. On detection of a difference between the operation amount detected by a second sensor and the operation amount received by a communication unit from the master, a slave side controller executes at least one of the stop control to automatically stop the construction machine and the alarm control to cause the warning device to issue the alarm.

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 construction machine work information management system includes: a server; a transmission unit attached to the construction machine and configured to transmit a wireless signal indicating first identification information for identifying the transmission unit itself; and reception units disposed at a plurality of monitoring target positions at a work site, the reception units being configured to receive the wireless signal when the construction machine approaches, and to transmit second identification information for identifying the reception unit itself to the server together with the first identification information.

Abstract: A correction value for matching an operation characteristic of a slave operating device with an operation characteristic of a master operating device is registered in advance in a correction table for each combination of type information of a construction machine and type information of the slave operating device. A controller acquires, from correction information, a correction value corresponding to a combination of the type information of the construction machine and the type information of the slave operating device received by a communication unit, corrects an amount of operation accepted by an operating lever based on the acquired correction value, and transmits the corrected amount of operation to the communication unit.

Abstract: A server includes: a communication part which receives from an orderer terminal operation request information input by an orderer and including a specific operation content and an operation time set for the specific operation content; and a display data generation part which generates based on the operation request information display data on which a master device displays an operation selection image showing the operation content and the operation time set in combination with each other to allow a selection of a desired time segment of the operation time set. The master device includes: a display control part which generates the operation selection image based on the display data so that a display part displays the operation selection image; and an operation part which receives a selection instruction of the operator that the operator selects the desired time segment of the operation time set shown in the operation selection image.

Abstract: A construction machine includes a display control section which controls a display device to display attachment relevant information generated based on attachment positional information generated by an attachment positional information generation section and three-dimensional contour information of a peripheral working area around the construction machine. The attachment relevant information is information concerning an image obtained by superimposing a peripheral image about a three-dimensional contour of the peripheral working area and a projected image about a leading end attachment which is projected to the peripheral image in a projection direction set arbitrarily or a projection direction set in accordance with a predetermined condition.

Abstract: A remote operation system for a working machine includes a control device enabling an operator wearing a wearable display to grasp the surrounding situation of himself/herself. The control device includes an operation intention judgment section judging the presence/absence of an operator's operation intention to a remote operation lever based on the contents of acquired judgment information, and a display image switching section. With judgment of presence of the operation intention, the display image switching section makes a working area image taken by a working area image taking camera be displayed in a particular display area of the wearable display. With judgment of absence of the operation intention, the display image switching section stops the display of the working area image in the at least a part of the particular display area and switches it to a surrounding visual-recognition allowing area allowing the operator to visually recognize the surroundings.

Abstract: A hydraulic excavator includes a lower travelling body, an upper slewing body, a sensor which detects presence/absence of an obstacle in a monitoring region set around the hydraulic excavator in advance and a distance to the obstacle, a control unit which calculates first position information including positional coordinates of an obstacle relative to a reference position set in advance in the hydraulic excavator on the basis of a detection result obtained by the sensor, a time counting unit which acquires time information including time when an obstacle is detected, and a storage unit which stores log data correlating the first position information with the time information.

Abstract: A construction machine that, prior to performing a rewriting process of rewriting a currently used program with a renewal program, detects a charge amount of an electric storage device. When the charge amount detected is smaller than a rewrite charge amount preliminarily set as a charge amount required for the rewriting process, the rewriting is prohibited and the renewal program is transferred to storage. When the charge amount becomes sufficient, the rewriting process is performed using the renewal program stored in the storage.

Abstract: A vehicle-side control unit determines whether a long distance communication mechanism is available or not, when determining that the long distance communication mechanism is available, controls a first vehicle-side communication unit to transmit operation data via the long distance communication mechanism, and when determining that the long distance communication means is not available, causes a vehicle-side storage unit to store the operation data, and further determines whether a transmission start command is received from a tablet or not, and when determining that the transmission start command is received, controls a second vehicle-side communication unit to transmit the operation data stored in the vehicle-side storage unit via a short distance communication mechanism.

Abstract: A hydraulic excavator includes a lower travelling body, an upper slewing body, a sensor which detects presence/absence of an obstacle in a monitoring region set around the hydraulic excavator in advance and a distance to the obstacle, a control unit which calculates first position information including positional coordinates of an obstacle relative to a reference position set in advance in the hydraulic excavator on the basis of a detection result obtained by the sensor, a time counting unit which acquires time information including time when an obstacle is detected, and a storage unit which stores log data correlating the first position information with the time information.

Abstract: A reception unit receives, from an execution information terminal, an access request made by an execution manager to an operation management system. When the reception unit receives the access request, a determination unit determines whether the execution manager who has made the access request satisfies a disclosure condition stored in a first storage unit. When the determination unit determines that the execution manager who has made the access request satisfies the disclosure condition, a permission unit permits disclosure of the operational information to the execution manager.

Abstract: To prevent abnormal termination of a program rewriting process performed when an engine is stopped. A construction machine includes: an engine (13); an alternator (14) for generating an electric power by a power of the engine (13); an electric storage device (15) for storing the electric power generated by the alternator (14); a controller (12) for storing a currently used program, and performing a rewriting process of rewriting the currently used program with a renewal program using an electric power from the electric storage device (15) when the engine (13) is stopped; and a charge amount detection section (18e) for detecting a charge amount of the electric storage device (15). The controller (12) prohibits execution of the rewriting process when the charge amount detected by the charge amount detection section (18e) is smaller than a rewrite charge amount preliminarily set as a charge amount required for the rewriting process.

Abstract: Provided are, an electric motor assembly capable of preventing a sealant from leakage through a lead-wire drawing portion, and an electric motor manufacturing method with use of the electric motor assembly. The electric motor assembly includes a rotor, a stator, a casing, a partition wall with through-holes, plugs made of a highly elastic material and including a tapered outer peripheral surface to be fitted into the through-holes, and lead wires connected to the stator. The plugs surround lead-wire insertion holes. A sealant is injected into the casing in a state that the lead wires are drawn through the lead-wire insertion holes. The injection pressure presses the plugs outwardly to bring the outer peripheral surfaces of the plugs into close contact with the inner peripheral surface surrounding the through-holes and elastically deforms the plugs in a diameter-reduction direction to cause the plugs to close the lead-wire insertion holes.

Abstract: A device comprises an engine including a crank shaft with a first end portion, a generator motor including a rotor shaft with a second end portion, a flywheel with first and second connection portions connected to the first and second end portions respectively, and a fastening member. At least one of the connection portions constitutes an alignment connection portion. The first or second end portion constitutes an alignment end portion. One of the alignment connection portion and the alignment end portion includes a concave portion having an alignment inner surface, and the other includes a convex portion having an alignment outer surface. One surface of the alignment inner and outer surfaces is a tapered surface. The fastening member fastens the alignment connection portion and the alignment end portion to each other to bring a tip end of the other surface into pressure contact with the tapered surface.

Abstract: A hybrid construction machine that enables to efficiently cool a generator motor, while suppressing an increase in the entire length of a power unit. A motor housing is provided with a bulging portion which is configured to axially bulge from the inner periphery of a motor side connection surface toward an engine over the entire circumference thereof around an axis, and to engage with the inside of an engine housing; and a coolant passage which is configured to flow a coolant for cooling a stator therethrough. The inner peripheral surface of the motor housing including the inner peripheral surface of the bulging portion is configured to come into plane contact with the outer peripheral surface of the stator. The coolant passage is disposed at a position axially displaced from the motor side connection surface.

Abstract: A protrusion 53 is shaped to protrude from a main body 51 toward a supporter non-contact part 23 so as to circumvent a supporter 30. The protrusion 53 includes a protrusion heat transfer surface 55 which is a surface on the battery heat transfer surface 20 side (i.e., an upper side Y2). A heat conduction member 40 contacts with the supporter non-contact part 23 and the protrusion heat transfer surface 55.

Abstract: The axial lengths of coupling portions of a flywheel, a rotor shaft, and a pump shaft are reduced to reduce the axial length of an entire power unit. A crankshaft 4 and a flywheel 8 are directly coupled to each other and the flywheel 8 and a rotor shaft 5 are directly coupled to each other. A coupling 20 is directly coupled to an end face of the rotor shaft 5 on the opposite side to the flywheel 8. A pump shaft 6 is connected to the coupling 20. Coupling surfaces of the flywheel 8 and the rotor shaft 5 and coupling surfaces the rotor shaft 5 and the coupling 20 are arranged within a width range of a coil 19.