Apparatus and method for model adaptation
First Claim
1. A method of determining whether to modify a process model, the method comprising:
- receiving actual sensor values, the actual sensor values being in the form of a vector;
determining a maturity of a model, the maturity being defined for each of a plurality of sensors and further defined by an upper limit and a lower limit for each sensor value;
determining a function that translates model maturity to model range inhibition measure;
determining a model range inhibition (MRI) measure based upon the maturity of the model and the determined function;
determining an MRI limit based upon the MRI measure; and
comparing the received vector to the MRI limit and selectively changing the model based upon the comparing.
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Abstract
A vector of actual sensor values is received. A maturity of a model is determined and the maturity is defined for sensors. A function that translates model maturity to model range inhibition measure is determined. A model range inhibition (MRI) measure is determined. An MRI limit based upon the MRI measure is determined. The received vector is compared to the MRI limit and the model is selectively changed based upon the comparing. In other aspects, vectors are received having actual values of driver and response sensors. A function that provides a set of boundaries between acceptable observations and unacceptable observations is also determined. Measures of similarity between vectors are determined. The measures of similarity and the function are compared and the model is selectively changed based upon the comparing.
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Citations
14 Claims
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1. A method of determining whether to modify a process model, the method comprising:
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receiving actual sensor values, the actual sensor values being in the form of a vector; determining a maturity of a model, the maturity being defined for each of a plurality of sensors and further defined by an upper limit and a lower limit for each sensor value; determining a function that translates model maturity to model range inhibition measure; determining a model range inhibition (MRI) measure based upon the maturity of the model and the determined function; determining an MRI limit based upon the MRI measure; and comparing the received vector to the MRI limit and selectively changing the model based upon the comparing. - View Dependent Claims (2, 3, 4, 5)
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6. A method of determining whether to modify a process model, the method comprising:
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receiving actual values for driver sensors, the actual values for driver sensors being in the form of a first vector; receiving actual values for response sensors, the actual values for response sensors being in the form of a second vector; receiving estimate values for driver sensors, the estimate values for driver sensors being in the form of a third vector; receiving estimate values for response sensors, the estimate values for response sensors being in the form of a fourth vector; determining a function that provides a set of boundaries between acceptable observations and unacceptable observations; determining a first measure of similarity between the first vector and the third vector; determining a second measure of similarity between the second vector and the fourth vector; and comparing the first measure of similarity, the second measure of similarity, and the function and selectively changing a model based upon the comparing. - View Dependent Claims (7, 8, 9)
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10. An apparatus that is configured to determine whether to modify a process model, the apparatus comprising:
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an interface having an input and an output, the input configured to receive a vector of actual sensor values and a maturity of a model, the maturity being defined for each of a plurality of sensors and further defined by an upper limit and a lower limit for each sensor value; a processor, the processor coupled to the interface, the processor configured to determine a model range inhibition (MRI) measure based upon the maturity of the model and a determined function that translates model maturity to model range inhibition measure, the processor configured to determining an MRI limit based upon the MRI measure, and compare the received vector to the MRI limit, the processor configured to selectively change the model based upon the comparing via one or more control signals sent via the output. - View Dependent Claims (11, 12, 13, 14)
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Specification