DIAGNOSIS RULE STRUCTURING METHOD BASED ON FAILURE MODE ANALYSIS, DIAGNOSIS RULE CREATING PROGRAM, AND FAILURE DIAGNOSIS DEVICE

Title:

DIAGNOSIS RULE STRUCTURING METHOD BASED ON FAILURE MODE ANALYSIS, DIAGNOSIS RULE CREATING PROGRAM, AND FAILURE DIAGNOSIS DEVICE

Document Type and Number:

Japanese Patent JP2003228485

Kind Code:

A

Abstract:

To provide a method and program which easily creates a failure diagnosis rule, and to provide a device which can diagnose a failure without manpower.

A diagnosis tree for a diagnosis target instrument is prepared. Relevant measurement items and names of parts are also prepared. The prepared diagnosis tree is transformed to a failure-mode influence analysis chart. In this step, a failure-mode influence analysis chart/diagnosis tree (with measurement items), which is consistent and checked, can be created. A diagnosis rule is created using the created failure-mode influence analysis chart/diagnosis tree (with measurement items) and past failure cases. The diagnosis rule is checked and completed by simulated diagnosis using simulated data which is created from the failure-mode influence analysis chart/diagnosis tree and data at normal mode. The created diagnosis rule is built in a device which can diagnose a failure from sensor measurement data.

Inventors:

WADA TAKAO
MIYAMOTO YUICHI
MURAKAMI SHOJI
SUGAYA ATSUFUMI
OZAKI YOSHIHIKO
SAWAI TSUNEYOSHI
MATSUMOTO SUMIAKI
YAMADERA TAKAHITO
KAWAMURA SEI
KAYUKAWA AKITOSHI
YAMADA YUKIHIRO
ISHIDA HARUO

Application Number:

JP2002029283A

Publication Date:

August 15, 2003

Filing Date:

February 06, 2002

Export Citation:

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Assignee:

KAWASAKI HEAVY IND LTD

International Classes:

G06F9/44; G05B23/02; G06N5/04; (IPC1-7): G06F9/44; G05B23/02

Attorney, Agent or Firm:

Shinichi Shiode (1 person outside)

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