Patents by Inventor Stephen L. Daniel

Stephen L. Daniel 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).

  • Method and system of monitoring, sensor validation and predictive fault analysis
    Publication number: 20090043405
    Abstract: The present invention provides an improved method and system for real-time monitoring, validation, optimization and predictive fault analysis in a process control system. The invention monitors process operations by continuously analyzing sensor measurements and providing predictive alarms using models of normal process operation and statistical parameters corresponding to normal process data, and generating secondary residual process models. The invention allows for the creation of a fault analyzer directly from linearly independent models of normal process operation, and provides for automatic generation from such process models of linearly dependent process models. Fuzzy logic is used in various fault situations to compute certainty factors to identify faults and/or validate underlying assumptions.
    Type: Application
    Filed: October 3, 2008
    Publication date: February 12, 2009
    Inventors: Daniel L. Chester, Stephen L. Daniel, Richard J. Fickelscherer, Douglas H. Lenz
  • Method and system of monitoring, sensor validation and predictive fault analysis
    Patent number: 7451003
    Abstract: The present invention provides an improved method and system for real-time monitoring, validation, optimization and predictive fault analysis in a process control system. The invention monitors process operations by continuously analyzing sensor measurements and providing predictive alarms using models of normal process operation and statistical parameters corresponding to normal process data, and generating secondary residual process models. The invention allows for the creation of a fault analyzer directly from linearly independent models of normal process operation, and provides for automatic generation from such process models of linearly dependent process models. Fuzzy logic is used in various fault situations to compute certainty factors to identify faults and/or validate underlying assumptions.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: November 11, 2008
    Assignee: Falconeer Technologies LLC
    Inventors: Daniel L. Chester, Stephen L. Daniel, Richard J. Fickelscherer, Douglas H. Lenz