Komatsu Corporation

Tadashi Taninaga

Takahiro Ueda

Hisataka Fukasu

Takashi Itoi

Koutarou Hori

Tetsuya Ogawa

Taku Murakami

Ichio Ichikawa

Hirobumi Miwa

Megumi Murase

A loading system that includes a transporter and a loader or a transporter is provided. It includes a load-amount measuring unit installed on the transporter that measures a load amount of an object loaded on the transporter; a difference computing unit computing a difference between the load amount measured by the load-amount measuring unit when the object is loaded, and a load amount measured by the load-amount measuring unit after a measurement when the object is loaded and at a time of traveling; a storage unit storing a difference value data indicating the difference computed by the difference computing unit; a correcting unit correcting the load amount measured by the load-amount measuring unit when the object is loaded, based on a correction rule calculated based on the difference value data stored in the storage unit; and a display unit displaying a corrected load amount obtained by correcting the load amount.

Loading system and transporter

In a management system of the mining machine, a management device collects operation information about the dump truck via a management-side wireless communication device. Routes along which the dump truck travels are identified based on position information, included in the operation information about the dump truck, about at least four locations included in a route along which the dump truck moves to a location where the dump truck unloads a load, to a location where the dump truck loads a load, and to a location where the dump truck unloads the load again.

Management system of mining machine and management method of mining machine

An information collection device of an information collection system of a mining machine collects operation information from the dump truck. The information collection device transmits a position information request command to request the transmission of position information about the dump truck through a second wireless communication device at a predetermined time. When the dump truck whose response to the position information request command is received by the second wireless communication device can stay in the communication range of an in-vehicle wireless communication device until the communication of the operation information of the dump truck ends, the information collection device collects the operation information of the dump truck whose response is received by the second wireless communication device.

Mining machine information collection system

An information collection device transmits a position information request command for requesting transmission of position information of a dump truck at a predetermined point in time via a second wireless communication device and determines a state of at least one of the dump truck, a relay that relays communication from a first wireless communication device included in the dump truck to the second wireless communication device, and a travel route of the dump truck based on a response to the position information request command.

Mining machine movement management system

To predict the service life of a construction machine more accurately, and to make it possible to draw up an appropriate overhaul implementation plan at an early stage. A first service life prediction unitpredicts the service lives of main components such as an engine and the like, based upon their actual wear states. And a second service life prediction unitpredicts the service lives of the same components, based upon their cumulative load amounts. An order setting unitselects the ones of these two predicted service lives which are the shorter, and sets a priority order for overhaul in order of shortness of predicted service life. An overhaul schedule table generation unitcreates a schedule table Dbased upon this priority order. The contents of this schedule table Dare decided upon by a judgment unit, and, if necessary, are corrected by a correction unit. And a plan creation unitcreates an overhaul implementation plan document Dand the like, based upon the corrected schedule table D. The result of the overhaul task and the present states of components are tested, and these test results are reflected by the service life prediction unitsand

System for construction machine maintenance based on predicted service life

Abnormality can be judged accurately by considering information other than a sensor-detected value. Determination of an abnormality degree, namely an urgency degree, is enabled, and an abnormality can be processed accurately according to the determined result. Only information really useful is given to the side of an administrator, and the communications cost is suppressed. Server unit of manufacturer judges the abnormality degree of a construction machine on the basis of a combination of all or two of first to third construction machine information D , D , D collected. The server unit of the manufacturer ranks the abnormality degree of the construction machine in respective levels of Rank 1 (Normal), Rank 2 (Warning), Rank 3 (Abnormal) and Rank 4 (Emergency) on the basis of the number of occurred times of error codes collected for the unit time.

Control system for construction machines

When the amount of a change in load current supplied to a grinder is not more than a predetermined threshold value, the amount of piercing into a workpiece by the grinder is controlled according to the load current. When the amount of a change in load current exceeds the predetermined threshold value, the grinding speed of the grinder is controlled according to the load current. When performing a plurality of operations with one robot, a position correction value calculated in one operation is utilized to correct a target position in another operation.

Growing community of inventors

Fujisawa, Japan

Tadashi Taninaga