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AUTOMATED FAULT DETECTION AND DIAGNOSTICS IN A BUILDING MANAGEMENT SYSTEM

  • US 20120259583A1
  • Filed: 04/04/2012
  • Published: 10/11/2012
  • Est. Priority Date: 06/22/2009
  • Status: Active Grant
First Claim
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1. 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.

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