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US 2004/0172227 A1Published application
System and method for improving accuracy of baseline models
AssigneeGeneral Electric Company
InventorJames Kenneth Aragones
Life of this patent
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Abstract
System, method and computer-readable medium for baseline modeling a product or process. A service database contains process data. A preprocessor processes the data into a predetermined format. A baseline modeling component builds a baseline model from the preprocessed data, wherein the baseline model relates process performance variables as a function of process operating conditions.
Claims36
A system for performing engine baseline modeling, comprising:
- an engine service database containing engine data, wherein the engine data includes at least time-varying engine data;
- a preprocessor for processing the engine data into a predetermined format;
- and
- an engine baseline modeling component that builds an initial engine baseline model from the preprocessed data using a regression analysis, wherein the regression analysis relates engine performance variables as a function of engine operating conditions,
- wherein the engine baseline modeling component applies a smoothing algorithm to the initial engine baseline model to reduce effects of the time-varying engine data to generate a detrended engine baseline model.
2 more elements
A system for performing engine baseline modeling, comprising:
- an engine service database containing engine data;
- a preprocessor for processing the engine data into a predetermined format, wherein the preprocessor comprises a data segmenting component that segments the engine data into a plurality of groups;
- and
- an engine baseline modeling component that builds an initial engine baseline model from the preprocessed data using a regression analysis, wherein the regression analysis relates engine performance variables as a function of engine operating conditions,
- wherein the engine baseline modeling component identifies correlated groups of engine data based upon the initial engine baseline model,
- wherein the engine baseline modeling component combines data from correlated groups, and
- wherein the engine baseline modeling component builds a final engine baseline model from the combined data using a regression analysis.
4 more elements
A system for performing engine baseline modeling, comprising:
- an engine service database containing engine data;
- a preprocessor for processing the engine data into a predetermined format, wherein the preprocessor comprises a data segmenting component that segments the engine data into a plurality of groups;
- and
- an engine baseline modeling component that builds an initial engine baseline model from the preprocessed data using a regression analysis, the initial engine baseline model represented by a plurality of parameter estimates,
- wherein the regression analysis relates engine performance variables as a function of engine operating conditions,
- wherein the engine baseline modeling component identifies segments relating to related engines,
- wherein the engine baseline modeling component smoothes the parameter estimates for each of the identified related engine segments, and
- wherein the engine baseline modeling component builds a final engine baseline model from the averaged data using a regression analysis.
5 more elements
A method for performing engine baseline modeling, comprising:
- storing engine data in an engine service database,
- wherein the engine data includes at least time-varying engine data;
- processing the engine data into a predetermined format;
- building an initial engine baseline model from the processed data using a regression analysis, wherein the regression analysis relates engine performance variables as a function of engine operating conditions,
- applying a smoothing algorithm to the initial engine baseline model to reduce effects of the time-varying engine data;
- and
- generating a detrended engine baseline model.
4 more elements
A method for performing engine baseline modeling, comprising:
- storing engine data in an engine service database;
- processing the engine data into a predetermined format;
- segmenting the engine data into a plurality of groups;
- building an initial engine baseline model from the processed data using a regression analysis, wherein the regression analysis relates engine performance variables as a function of engine operating conditions;
- identifying correlated groups of engine data based upon the initial engine baseline model;
- combining data from correlated groups;
- and
- building a final engine baseline model from the combined data using a regression analysis.
5 more elements
A method for performing engine baseline modeling, comprising:
- storing engine data in an engine service database;
- processing the engine data into a predetermined format;
- segmenting the engine data into a plurality of groups;
- building an initial engine baseline model from the processed data using a regression analysis, the initial engine baseline model represented by a plurality of parameter estimates, wherein the regression analysis relates engine performance variables as a function of engine operating conditions;
- identifying segments relating to related engines;
- smoothing the parameter estimates for each of the identified related engine segments;
- and
- building a final engine baseline model from the averaged data using a regression analysis.
5 more elements
A computer-readable medium incorporating instructions for performing engine baseline modeling, comprising:
- one or more instructions for storing engine data in an engine service database, wherein the engine data includes at least time-varying engine data;
- one or more instructions for processing the engine data into a predetermined format;
- one or more instructions for building an initial engine baseline model from the processed data using a regression analysis, wherein the regression analysis relates engine performance variables as a function of engine operating conditions,
- one or more instructions for applying a smoothing algorithm to the initial engine baseline model to reduce effects of the time-varying engine data;
- and
- one or more instructions for generating a detrended engine baseline model.
3 more elements
A computer-readable medium incorporating instructions for performing engine baseline modeling, comprising:
- one or more instructions for storing engine data in an engine service database;
- one or more instructions for processing the engine data into a predetermined format;
- one or more instructions for segmenting the engine data into a plurality of groups;
- one or more instructions for building an initial engine baseline model from the processed data using a regression analysis, wherein the regression analysis relates engine performance variables as a function of engine operating conditions;
- one or more instructions for identifying correlated groups of engine data based upon the initial engine baseline model;
- one or more instructions for combining data from correlated groups;
- and
- one or more instructions for building a final engine baseline model from the combined data using a regression analysis.
5 more elements
A computer-readable medium incorporating instructions for performing engine baseline modeling, comprising:
- one or more instructions for storing engine data in an engine service database;
- one or more instructions for processing the engine data into a predetermined format;
- one or more instructions for segmenting the engine data into a plurality of groups;
- one or more instructions for building an initial engine baseline model from the processed data using a regression analysis, the initial engine baseline model represented by a plurality of parameter estimates, wherein the regression analysis relates engine performance variables as a function of engine operating conditions;
- one or more instructions for identifying segments relating to related engines;
- one or more instructions for smoothing the parameter estimates for each of the identified related engine segments;
- and
- one or more instructions for building a final engine baseline model from the averaged data using a regression analysis.
5 more elements
Dependencies are inferred from the claim text.