Working machine, failure diagnosis system for work machine and maintenance system for work machines

• US 7,222,051 B2
• Filed: 10/12/2005
• Issued: 05/22/2007
• Est. Priority Date: 05/08/2001
• Status: Expired due to Term

• Current Assignee: Hitachi Construction Machinery Company Limited (Hitachi, Ltd.)
• Original Assignee: Hitachi Construction Machinery Company Limited (Hitachi, Ltd.)
• Inventors: Ogura, Hiroshi, Watanabe, Hiroshi, Shibata, Koichi, Karasawa, Hideo, Sugiyama, Genroku, Adachi, Hiroyuki
• Primary Examiner(s): O MALLEY, MARY CATHERINE
• Application Number:
  US11/247,243
• Publication Number:
  US 20060031042A1
• Time in Patent Office: 587 Days
• Field of Search: None
• US Class Current: 702/184
• CPC Class Codes: E02F 9/205 Remotely operated machines, e.g. unmanned vehicles E02F3/8866 takes precedence
• CPC Class Codes: E02F 9/24 Safety devices , e.g. for preventing overload E02F9/226 takes precedence
• CPC Class Codes: E02F 9/26 Indicating devices E02F5/145 takes precedence
• CPC Class Codes: E02F 9/268 with failure correction follow-up actions
• CPC Class Codes: G05B 19/4063 Monitoring general control system G05B19/4062 takes precedence
• CPC Class Codes: G05B 19/4185 characterised by the network communication
• CPC Class Codes: G05B 2219/31454 Keep track of vehicles
• CPC Class Codes: G05B 2219/33284 Remote diagnostic
• CPC Class Codes: G05B 2219/45012 Excavator
• CPC Class Codes: G05B 23/0267 Fault communication, e.g. human machine interface [HMI]
• CPC Class Codes: Y02P 90/80 Management or planning

Abstract

A working machine maintenance system having a plurality of working machines. A center server is provided that manages maintenance on the plurality of working machines by engaging in data exchange through bidirectional communication with each of the plurality of working machines via a communication line. The working machines each include an operation data storage device, an operation device operated to enter a maintenance work completion, a data transmission device, a data reception device, and a display device at which the maintenance information is displayed. The center server includes a data reception device that receives the operation data, the maintenance work completion data, and the maintenance data that have been transmitted, an operation database in which the operation data are stored, a maintenance database, a calculation device that calculates maintenance timing. and a data transmission device that transmits data related to the maintenance information.

Claims

1. A working machine maintenance system comprising:

a plurality of working machines; and

a center server that manages maintenance on the plurality of working machines by engaging in data exchange through bidirectional communication with each of the plurality of working machines via a communication line, wherein;

the working machines each include an operation data storage device that stores operation data and maintenance data, an operation device operated to enter a maintenance work completion, a data transmission device that transmits the operation data, maintenance work completion data provided through the operation device and the maintenance data to the center server, a data reception device that receives data related to maintenance information transmitted from the center server and a display device at which the maintenance information is displayed; and

the center server includes a data reception device that receives the operation data, the maintenance work completion data and the maintenance data that have been transmitted, an operation database in which the operation data are stored, a maintenance database in which the maintenance data are stored, a calculation device that calculates maintenance timing based upon the operation data stored in the operation database and the maintenance data stored in the maintenance database and a data transmission device that transmits data related to the maintenance information including the maintenance timing to a working machine.

2. A working machine maintenance system according to claim 1, wherein:

maintenance work, a completion of which is signaled through an input operation at the operation device, includes failure repair work; and

the maintenance data include failure location data indicating a failure location at the working machine.