Patents by Inventor Randall L. Bickford
Randall L. Bickford has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8892478Abstract: An adaptive model training system and method for filtering asset operating data values acquired from a monitored asset for selectively choosing asset operating data values that meet at least one predefined criterion of good data quality while rejecting asset operating data values that fail to meet at least the one predefined criterion of good data quality; and recalibrating a previously trained or calibrated model having a learned scope of normal operation of the asset by utilizing the asset operating data values that meet at least the one predefined criterion of good data quality for adjusting the learned scope of normal operation of the asset for defining a recalibrated model having the adjusted learned scope of normal operation of the asset.Type: GrantFiled: March 14, 2013Date of Patent: November 18, 2014Assignee: Intellectual Assets LLCInventors: Randall L. Bickford, Rahul M. Palnitkar
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Patent number: 8855954Abstract: Path classification and estimation method and system used in combination with a computer and memory for prognosticating the remaining useful life of an in-service battery asset by classifying a present degradation path of the in-service battery asset as belonging to one or more of previously collected degradation paths of one or more exemplary battery assets and using the resulting classifications to estimate the remaining useful life of the in-service battery asset thereby transforming raw data inputs into actionable state-of-health outputs.Type: GrantFiled: February 19, 2010Date of Patent: October 7, 2014Assignee: Intellectual Assets LLCInventors: Randall L. Bickford, Dustin R. Garvey
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Patent number: 8712929Abstract: A computer-implemented dynamic data filtering system and method for selectively choosing operating data of a monitored asset that modifies or expands a learned scope of an empirical model of normal operation of the monitored asset while simultaneously rejecting operating data of the monitored asset that is indicative of excessive degradation or impending failure of the monitored asset, and utilizing the selectively chosen data for adaptively recalibrating the empirical model to more accurately monitor asset aging changes or operating condition changes of the monitored asset.Type: GrantFiled: March 29, 2010Date of Patent: April 29, 2014Assignee: Intellectual Assets LLCInventors: Randall L. Bickford, Rahul M. Palnitkar
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Patent number: 8700550Abstract: An adaptive model training system and method for filtering asset operating data values acquired from a monitored asset for selectively choosing asset operating data values that meet at least one predefined criterion of good data quality while rejecting asset operating data values that fail to meet at least the one predefined criterion of good data quality; and recalibrating a previously trained or calibrated model having a learned scope of normal operation of the asset by utilizing the asset operating data values that meet at least the one predefined criterion of good data quality for adjusting the learned scope of normal operation of the asset for defining a recalibrated model having the adjusted learned scope of normal operation of the asset.Type: GrantFiled: March 29, 2010Date of Patent: April 15, 2014Assignee: Intellectual Assets LLCInventors: Randall L. Bickford, Rahul M. Palnitkar, Vo Lee
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Patent number: 8682835Abstract: Asset surveillance method and system used in combination with a computer and memory for determining the condition of an asset using dynamically-selected estimation models for determining estimated data values in combination with dynamically-selected comparison models to more reliably determine the condition of the asset and to additionally determine the cause for any determined fault condition.Type: GrantFiled: December 14, 2007Date of Patent: March 25, 2014Assignee: Intellectual Assets LLCInventor: Randall L. Bickford
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Patent number: 8145444Abstract: A computer-implemented asset surveillance system and method for self calibrating at least one fault detector providing asset surveillance by calibrating at least the one fault detector with statistics associated with expected asset behavior, acquiring observed data values from an asset, screening the observed data values based upon at least one defined criterion for obtaining screened data values, updating the statistics associated with expected asset behavior as a function of the screened data values for defining updated statistics, and recalibrating the at least one fault detector with the updated statistics.Type: GrantFiled: November 28, 2008Date of Patent: March 27, 2012Assignee: Intellectual Assets LLCInventors: Randall L. Bickford, Rahul M. Palnitkar
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Patent number: 7415382Abstract: System and method providing surveillance of an asset such as a process and/or apparatus by providing training and surveillance procedures that numerically fit a probability density function to an observed residual error signal distribution that is correlative to normal asset operation and then utilizes the fitted probability density function in a dynamic statistical hypothesis test for providing improved asset surveillance.Type: GrantFiled: July 24, 2006Date of Patent: August 19, 2008Assignee: Intellectual Assets LLCInventors: Randall L. Bickford, James P. Herzog
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Patent number: 7158917Abstract: System and method for providing surveillance of an asset comprised of numerically fitting at least one mathematical model to obtained residual data correlative to asset operation; storing at least one mathematical model in a memory; obtaining a current set of signal data from the asset; retrieving at least one mathematical model from the memory, using the retrieved mathematical model in a sequential hypothesis test for determining if the current set of signal data is indicative of a fault condition; determining an asset fault cause correlative to a determined indication of a fault condition; providing an indication correlative to a determined fault cause, and an action when warranted. The residual data can be mode partitioned, a current mode of operation can be determined from the asset, and at least one mathematical model can be retrieved from the memory as a function of the determined mode of operation.Type: GrantFiled: March 5, 2005Date of Patent: January 2, 2007Assignee: Intellectual Assets LLCInventor: Randall L. Bickford
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Patent number: 7082379Abstract: System and method providing surveillance of an asset such as a process and/or apparatus by providing training and surveillance procedures that numerically fit a probability density function to an observed residual error signal distribution that is correlative to normal asset operation and then utilizes the fitted probability density function in a dynamic statistical hypothesis test for providing improved asset surveillance.Type: GrantFiled: December 31, 2004Date of Patent: July 25, 2006Assignee: Intellectual Assets LLCInventors: Randall L. Bickford, James P. Herzog
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Patent number: 6917839Abstract: A system and method which partitions a parameter estimation model, a fault detection model, and a fault classification model for a process surveillance scheme into two or more coordinated submodels together providing improved diagnostic decision making for at least one determined operating mode of an asset.Type: GrantFiled: June 20, 2003Date of Patent: July 12, 2005Assignee: Intellectual Assets LLCInventor: Randall L. Bickford
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Patent number: 6898469Abstract: A system and method for monitoring an apparatus or process asset including creating a process model comprised of a plurality of process submodels each correlative to at least one training data subset partitioned from an unpartitioned training data set and each having an operating mode associated thereto; acquiring a set of observed signal data values from the asset; determining an operating mode of the asset for the set of observed signal data values; selecting a process submodel from the process model as a function of the determined operating mode of the asset; calculating a set of estimated signal data values from the selected process submodel for the determined operating mode; and determining asset status as a function of the calculated set of estimated signal data values for providing asset surveillance and/or control.Type: GrantFiled: June 20, 2003Date of Patent: May 24, 2005Assignee: Intellectual Assets LLCInventor: Randall L. Bickford
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Patent number: 6892163Abstract: System and method providing surveillance of an asset such as a process and/or apparatus by providing training and surveillance procedures that numerically fit a probability density function to an observed residual error signal distribution that is correlative to normal asset operation and then utilizes the fitted probability density function in a dynamic statistical hypothesis test for providing improved asset surveillance.Type: GrantFiled: March 8, 2002Date of Patent: May 10, 2005Assignee: Intellectual Assets LLCInventors: James P. Herzog, Randall L. Bickford
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Publication number: 20040006398Abstract: A system and method for monitoring an apparatus or process asset including creating a process model comprised of a plurality of process submodels each correlative to at least one training data subset partitioned from an unpartitioned training data set and each having an operating mode associated thereto; acquiring a set of observed signal data values from the asset; determining an operating mode of the asset for the set of observed signal data values; selecting a process submodel from the process model as a function of the determined operating mode of the asset; calculating a set of estimated signal data values from the selected process submodel for the determined operating mode; and determining asset status as a function of the calculated set of estimated signal data values for providing asset surveillance and/or control.Type: ApplicationFiled: June 20, 2003Publication date: January 8, 2004Inventor: Randall L. Bickford
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Publication number: 20040002776Abstract: A system and method which partitions a parameter estimation model, a fault detection model, and a fault classification model for a process surveillance scheme into two or more coordinated submodels together providing improved diagnostic decision making for at least one determined operating mode of an asset.Type: ApplicationFiled: June 20, 2003Publication date: January 1, 2004Inventor: Randall L. Bickford
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Patent number: 6609036Abstract: A system and method for monitoring an apparatus or process asset including partitioning an unpartitioned training data set into a plurality of training data subsets each having an operating mode associated thereto; creating a process model comprised of a plurality of process submodels each trained as a function of at least one of the training data subsets; acquiring a current set of observed signal data values from the asset; determining an operating mode of the asset for the current set of observed signal data values; selecting a process submodel from the process model as a function of the determined operating mode of the asset; calculating a current set of estimated signal data values from the selected process submodel for the determined operating mode; and outputting the calculated current set of estimated signal data values for providing asset surveillance and/or control.Type: GrantFiled: June 9, 2000Date of Patent: August 19, 2003Inventor: Randall L. Bickford