Automated fault detection and diagnostics in a building management system
AssigneeJohnson Controls Technology Company
InventorsHomero L. Noboa, Kirk H. Drees, Michael Wenzel
Life of this patent
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Abstract
Systems and methods for automated fault detection in a building management system are shown and described. The systems and methods further involve organizing the data set into bins, each bin containing a plurality of the observed points for the variable of the building management system. The systems and methods further involve calculating, for each bin, a target parameter and an estimator of scale for the observed points. The systems and methods further involve detecting, for each bin, an outlier of the building management system by comparing a data point of the bin to the calculated target parameter and estimator of scale for the bin.
Claims26
A computerized method for detecting outliers in a building management system, the method comprising:
- receiving, at a building management system, a data set containing a plurality of observed points for a variable of the building management system;
- organizing the data set into bins, each bin containing a plurality of the observed points for the variable of the building management system;
- calculating, for each bin, a target parameter and an estimator of scale for the observed points;
- detecting, for each bin, an outlier of the building management system by comparing a data point of the bin to the calculated target parameter and estimator of scale for the bin;
- and
- outputting an indication of one or more of the outliers to at least one of a memory device, a user device, or another device on the building management system.
A controller for detecting outliers in a building management system, the controller comprising:
- a processing circuit configured to receive a data set containing a plurality of observed points for a variable of the building management system;
- and
- wherein the processing circuit is further configured to organize the data set into bins, each bin containing a plurality of the observed points for the variable of the building management system;
- wherein the processing circuit is further configured to calculate, for each bin, a target parameter and an estimator of scale for the observed points;
- wherein the processing circuit is further configured to detect, for each bin, an outlier of the building management system by comparing a data point of the bin to the calculated target parameter and estimator of scale for the bin;
- and
- wherein the processing circuit is further configured to output an indication of one or more of the faults to at least one of a memory device, a user device, or another device on the building management system.
Dependencies are inferred from the claim text.