The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2005
Filed:
Mar. 30, 2001
Hiroyuki Adachi, Tsuchiura, JP;
Toichi Hirata, Ushiku, JP;
Genroku Sugiyama, Ibaraki-ken, JP;
Hiroshi Watanabe, Ushiku, JP;
Koichi Shibata, Tsuchiura, JP;
Hideki Komatsu, Ibaraki-ken, JP;
Shuichi Miura, Koshigaya, JP;
Koji Mitsuya, Kashiwa, JP;
Yoshiaki Saito, Adachi-ku, JP;
Atsushi Sato, Soka, JP;
Hiroyuki Adachi, Tsuchiura, JP;
Toichi Hirata, Ushiku, JP;
Genroku Sugiyama, Ibaraki-ken, JP;
Hiroshi Watanabe, Ushiku, JP;
Koichi Shibata, Tsuchiura, JP;
Hideki Komatsu, Ibaraki-ken, JP;
Shuichi Miura, Koshigaya, JP;
Koji Mitsuya, Kashiwa, JP;
Yoshiaki Saito, Adachi-ku, JP;
Atsushi Sato, Soka, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
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.