System, method, and computer program for early event detection
First Claim
1. A method, comprising:
- generating a first model and a second model using operating data associated with a system or process; and
using the first and second models to predict one or more events associated with the system or process by;
generating one or more initial event predictions using the first model; and
adjusting the one or more initial event predictions using the second model.
1 Assignment
0 Petitions
Accused Products
Abstract
Various methods, devices, systems, and computer programs are disclosed relating to the use of models to represent systems and processes (such as manufacturing and production plants). For example, a method may include generating a first model and a second model using operating data associated with a system or process. The method may also include using the first and second models to predict one or more events associated with the system or process. The one or more events are predicted by generating one or more initial event predictions using the first model and adjusting the one or more initial event predictions using the second model. The first model may represent a Principal Component Analysis (PCA) model, and the second model may represent a Fuzzy Logic model.
-
Citations
21 Claims
-
1. A method, comprising:
-
generating a first model and a second model using operating data associated with a system or process; and
using the first and second models to predict one or more events associated with the system or process by;
generating one or more initial event predictions using the first model; and
adjusting the one or more initial event predictions using the second model. - View Dependent Claims (2, 3)
-
-
4. A method, comprising:
-
generating multiple first output signals using multiple first models representing a system or process;
normalizing the first output signals using one or more second models to produce multiple normalized second output signals; and
combining the normalized second output signals. - View Dependent Claims (5)
-
-
6. A method, comprising:
-
identifying at least one invalid data element in data associated with a system or process;
estimating a value for one or more of the invalid data elements using at least some valid data elements in the data associated with the system or process, wherein the estimating comprises performing a rank revealing QR factorization of a 2-norm known data regression problem; and
using the estimated value for one or more of the invalid data elements to predict one or more events associated with the system or process. - View Dependent Claims (7, 8)
-
-
9. A method, comprising:
-
presenting a graphical display to a user, the graphical display plotting a range of data values for one or more variables associated with a model of a system or process;
receiving from the user through the graphical display an identification of one or more portions of the data range; and
training the model without using any identified portions of the data range. - View Dependent Claims (10, 11, 12)
-
-
13. A method, comprising:
-
receiving information identifying multiple first events associated with a system or process;
generating at least one model using operating data associated with the system or process, the operating data not including operating data associated with the identified events; and
testing the at least one model by comparing second events predicted using the at least one model to the first events. - View Dependent Claims (14, 15)
-
-
16. A method, comprising:
-
presenting a graphical display to a user, the graphical display comprising;
a first plot identifying an error associated with a model representing a system or process; and
a second plot associated with one or more variables contributing to the error associated with the model; and
receiving input from the user identifying how the one or more variables associated with the second plot are selected. - View Dependent Claims (17, 18, 19)
-
-
20. A method, comprising:
-
configuring a model representing a system or process in an off-line module for on-line use, the off-line module operable to create the model, wherein the configuring occurs automatically and is specified completely within the off-line module; and
providing the configured model to an on-line module for use in predicting events associated with the system or process. - View Dependent Claims (21)
-
Specification