Equipment life and health monitoring method and system based on original fault data

The invention discloses an equipment life and health monitoring method and system based on original fault data. The method includes the steps: preprocessing the original fault data; building a two-parameter Weibull distribution model, determining a failure distribution function value by the aid of a...

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Bibliographic Details
Main Authors ZHANG SICHANG, HOU ZONGBO, ZHANG ZHEN, LIU YU
Format Patent
LanguageChinese
English
Published 20.10.2017
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention discloses an equipment life and health monitoring method and system based on original fault data. The method includes the steps: preprocessing the original fault data; building a two-parameter Weibull distribution model, determining a failure distribution function value by the aid of an approximate medium rank formula method, fitting out a regression equation of the Weibull distribution model by a least-square parameter estimation method at fault occurrence time based on the calculated failure distribution function value, and determining scale parameters and shape parameters; substituting the scale parameters and the shape parameters into a failure distribution function in two-parameter Weibull distribution, and determining a failure distribution function model; determining a reliability function; equipment reliability calculation: substituting time intervals between given time and last fault repair time into a reliability function, and calculating equipment reliability; dividing the health inte
Bibliography:Application Number: CN201710456855