Abstract: After a remote control valve has been brought into a non-working state, a stop signal is to be sent from an engine controller in a controller to a governor controller in an engine to stop the engine automatically, under the condition that an illuminating lamp is turned off, after a preset allowance time has passed and when a gate lever provided at a gateway for an operator is opened (the operator gets off the machine). Further, before the engine is stopped, the operator is to be notified of the coming engine stop, and when the engine is stopped, a power supply is to be cut off automatically.

Abstract: This invention relates to a method for carrying out, using control means capable of gathering operating information of one or more construction machines to be rented to one or more renters, a service to renters according to the operating information, wherein the control means calculates the point number for service for giving back the profit to the renters on the basis of an evaluation standard preset with respect to the construction machines from the operating information, and totals the point number calculated every renter to present it.

Abstract: A wireless terminal mounted on a traveling apparatus memorizes operation data on the traveling apparatus, determines possibility of transmitting the operation data based on the electric field intensity of beacon, existence of operation data which has not been transmitted to a base station apparatus, an elapsed time after a switch of the mode (storage wait mode/delivery wait mode) of the wireless terminal, a planned storage date, and the like, and transmits a response to the beacon transmitted from the base station apparatus and operation data if the transmission is possible. When the transmission of the operation data has been completed, the wireless terminal is set to the delivery wait mode, and is switched to a state of waiting for delivery beacon transmitted from the base station apparatus to the wireless terminal waiting for delivery. When the delivery beacon is received, it is switched to the storage wait mode.

Abstract: A power control device for a construction machine of the present invention is characterized by including an engine, an actuator adapted to be driven with power of the engine, an engine controller for stopping the engine automatically when it is not necessary to drive the actuator, and an air conditioner for conditioning the air in an interior of a cab of the construction machine, and in which when an air conditioner operation detecting unit detects that the air conditioner is in operation and even when an engine power necessity determining unit determines that the power of the engine is not necessary, automatic stop of the engine by the engine controller is prevented.

Abstract: After a remote control valve has been brought into a non-working state, a stop signal is to be sent from an engine controller in a controller to a governor controller in an engine to stop the engine automatically, under the condition that an illuminating lamp is turned off, after a preset allowance time has passed and when a gate lever provided at a gateway for an operator is opened (the operator gets off the machine). Further, before the engine is stopped, the operator is to be notified of the coming engine stop, and when the engine is stopped, a power supply is to be cut off automatically.

Abstract: To enable positive management of construction machines in a management center. There comprises an construction machine 1, and a management apparatus 20 for carrying out the transmission and reception of information with the construction machine 1 through a communication satellite 30 and a base station 32. The construction machine 1 comprises a memory 124 for storing operating information, information amount discrimination means 127 to discriminate if the operating information stored in the memory 124 reaches a fixed amount, information readout means 128 for reading out the operating information when the operating information stored in the memory 12 reaches the fixed amount, and a transmission section 184 for transmitting the operating information read out.

Abstract: A power control device for a construction machine of the present invention is characterized by including an engine, an actuator adapted to be driven with power of the engine, an engine controller for stopping the engine automatically when it is not necessary to drive the actuator, and an air conditioner for conditioning the air in an interior of a cab of the construction machine, and in which when an air conditioner operation detecting unit detects that the air conditioner is in operation and even when an engine power necessity determining unit determines that the power of the engine is not necessary, automatic stop of the engine by the engine controller is prevented.

Abstract: The present invention provides an operating information control system of a construction machine comprising: operating information collection device for collecting operating information regarding operation of a construction machine; storage device for storing the operating information; and transmission controller for transmitting the operating information read from the storage device to a first receiving device provided except the construction machine through a wireless radio, the transmission controller capable of transmitting the operating information to the first receiving device when receiving a transmission request from outside of the construction machine, or continuously for a predetermined period. Thereby, since the operating information of the construction machine is transmitted making use of a low power wireless radio without using a communication satellite or a public circuit network, lots of communication cost can be reduced.

Abstract: The present invention provides a method for displaying an operation status of a construction machine by sensing operating information of the construction machine by means of a coolant water sensor and the like, sending the operating information to a control computer while the control computer receives the operating information which has been sent from the construction machine, determines whether the construction machine is in operation or not based on the received operating information, and displays the result of judgment on a monitor screen, so that the current operation status of the construction machine can be known easily.

Abstract: An excavator in which a generator is driven by an engine as a power source. Electric motors are driven by electric power supplied from the generator, and a lower traveling body, an upper turning body, and operating parts of an excavation attachment are operated by the electric motors.

Abstract: A wireless terminal mounted on a traveling apparatus memorizes operation data on the traveling apparatus, determines possibility of transmitting the operation data based on the electric field intensity of beacon, existence of operation data which has not been transmitted to a base station apparatus, an elapsed time after a switch of the mode (storage wait mode/delivery wait mode) of the wireless terminal, a planned storage date, and the like, and transmits a response to the beacon transmitted from the base station apparatus and operation data if the transmission is possible. When the transmission of the operation data has been completed, the wireless terminal is set to the delivery wait mode, and is switched to a state of waiting for delivery beacon transmitted from the base station apparatus to the wireless terminal waiting for delivery.

Abstract: A portable wireless data relay apparatus comprises a terminal communication unit for receiving data transmitted from wireless terminals, a data memorizing unit for memorizing the received data, a base station communication unit for wirelessly transmitting the memorized data to the base station apparatus, and a communication switching unit for switching between the wireless communication conducted by the wireless communication unit and that by the base station communication unit. The wireless data relay apparatus uses the base station communication unit to act as the wireless terminal, and to transmit the memorized data to the base station apparatus in a communication area with the base station apparatus after it uses the terminal communication unit to act as the base station apparatus, and to receive and memorize data from the wireless terminal. A stable wireless communication without multiple wireless communication bands or communication protocols is realized to apply to a traveling machine.

Abstract: A working machine, such as an excavator, provided with a condenser, capable of satisfying condensing conditions required for various works, while minimizing the condensers and maintaining a light-weight. The working machine includes a generator and at a an electrically-operated actuator for generating power for operating a work member by electric power generated by the generator. Further, as for charging-discharging electric power, a plurality of kinds of condensers are provided, and the condensers used are selectively switched according to power required, work contents, or the like.

Abstract: To enable positive management of construction machines in a management center. There comprises an construction machine 1, and a management apparatus 20 for carrying out the transmission and reception of information with the construction machine 1 through a communication satellite 30 and a base station 32. The construction machine 1 comprises a memory 124 for storing operating information, information amount discrimination means 127 to discriminate if the operating information stored in the memory 124 reaches a fixed amount, information readout means 128 for reading out the operating information when the operating information stored in the memory 12 reaches the fixed amount, and a transmission section 184 for transmitting the operating information read out.

Abstract: The control apparatus for a hydraulic excavator according to the present invention comprises: an operating amount sensor for detecting operating amounts of operating levers; a characteristic amount extraction portion for operating the characteristic amounts on the basis of the operating amount; a membership function memory portion for storing a plurality of membership functions; a fitness operation portion for operating fitnesses with respect to works for the characteristic amounts by applying the operated characteristic amounts to the membership functions; an operating characteristic set value memory portion for storing preset operating characteristic set values; and an operating characteristic operation portion for outputting the operating characteristic for controlling a hydraulic excavator on the basis of the fitnesses operated corresponding to a plurality of kinds of work and the stored operating characteristic set values.

Abstract: To enable positive management of construction machines in a management center. There comprises an construction machine 1, and a management apparatus 20 for carrying out the transmission and reception of information with the construction machine 1 through a communication satellite 30 and a base station 32. The construction machine 1 comprises a memory 124 for storing operating information, information amount discrimination means 127 to discriminate if the operating information stored in the memory 124 reaches a fixed amount, information readout means 128 for reading out the operating information when the operating information stored in the memory 12 reaches the fixed amount, and a transmission section 184 for transmitting the operating information read out.

Abstract: This invention relates to a method for carrying out, using control means capable of gathering operating information of one or more construction machines to be rented to one or more renters, a service to renters according to the operating information, wherein the control means calculates the point number for service for giving back the profit to the renters on the basis of an evaluation standard preset with respect to the construction machines from the operating information, and totals the point number calculated every renter to present it.

Abstract: The present invention provides an operating information control system of a construction machine comprising: operating information collection means for collecting operating information regarding operation of a construction machine; storage means for storing the operating information; and transmission controller for transmitting the operating information read from the storage means to a first receiving device provided except the construction machine through a wireless radio, the transmission controller capable of transmitting the operating information to the first receiving device when receiving a transmission request from outside of the construction machine, or continuously for a predetermined period. Thereby, since the operating information of the construction machine is transmitted making use of a low power wireless radio without using a communication satellite or a public circuit network, lots of communication cost can be reduced.

Abstract: The present invention provides a method for displaying an operation status of a construction machine by sensing operating information of the construction machine by means of a coolant water sensor and the like, sending the operating information to a control computer while the control computer receives the operating information which has been sent from the construction machine, determines whether the construction machine is in operation or not based on the received operating information, and displays the result of judgment on a monitor screen, so that the current operation status of the construction machine can be known easily.

Abstract: It is intended to keep low the moment of inertia of a boom, etc. and maintain the whole of a working machine in good weight balance. At the same time, a highly efficient recovery of energy is to be attained to increase a continuous working time of a battery. A battery-powered working machine using a battery as a power source is provided. Rotation of a rotatable superstructure 12 and rising and falling motions of a boom 28 are performed directly by electric motors 22 and 34. The recovery of energy is attained by utilizing the electric motors 22 and 34. An arm 30 and a bucket 32 both located remote from a centroid position of the machine are actuated by an arm cylinder 38 and a bucket cylinder 40, which are hydraulic actuators less heavy than electric motors. Further, a hydraulic pump 18 for supplying those hydraulic actuators with a hydraulic oil is actuated by a hydraulic pump actuating electric motor 20 which utilizes the battery 14 as a power source.