Hitachi Construction Machinery Co., Ltd.

Koji Mitsuya

Hiroyuki Adachi

Genroku Sugiyama

Toichi Hirata

Hiroshi Watanabe

Shuichi Miura

Yoshiaki Saito

Atsushi Sato

Koichi Shibata

Hideki Komatsu

A method and system for managing a construction machine whereby working time for each of different parts of a hydraulic excavator is measured. Measured data is stored in a memory of a controller and then transferred to a base station computer via satellite communication to be stored in a database. At each repair/replacement of a part in each hydraulic excavator, the base station computer calculates, based on the operation data, a replacement time interval of the part on the basis of the working time per section to which the part belongs, and then stores and accumulates it. The base station computer also reads the stored data for each hydraulic excavator, determines, for each part, a replacement rate of the part having a substantially equal replacement time interval, and calculates a target replacement time interval of the part in accordance with the replacement time interval corresponding to a maximum replacement rate.

Method and system for managing construction machine, and arithmetic processing apparatus

A hydraulic excavator working in fields includes a controller for measuring a working time for each of an engine , a front , a swing body , and a travel body , storing measured data in a memory of the controller , and then transferring it to a base station computer via satellite communication, an FD, etc. The transferred data is stored as a database in the base station computer . The base station computer reads the data stored in the database for each hydraulic excavator, calculates a working time of a part belonging to each section on the basis of the working time of that section, and compares the calculated working time with a preset target replacement time interval of the relevant part, thereby calculating a remaining time up to next replacement of the relevant part and managing the scheduled replacement timing thereof. Thus, the appropriate scheduled replacement timing of parts can be determined even in a construction machine having a plurality of sections that differ in working time from each other.

Method for managing construction machine, and arithmetic processing apparatus

A method for outputting failure handling method includes: detecting conditions of each part of a working machine; transmitting condition signals representing the detected conditions; receiving the condition signals; calculating a handling method for a failure showed by the received condition signals; and transmitting a handling signal representing the calculated handling method.

Failure measure outputting method, output system, and output device

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Kashiwa, Japan

Koji Mitsuya