Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ajay Divakaran0
Daniel N. Nikovski0
Kadir A. Peker0
Regunathan Radhakrishnan0
Date of Patent
October 28, 2008
0Patent Application Number
114982890
Date Filed
August 1, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A method and system detects and diagnoses faults in heating, ventilating and air conditioning (HVAC) equipment. Internal state variables of the HVAC equipment are measured under external driving conditions. Expected internal state variables are predicted for the HVAC equipment operating under the external driving conditions using a locally weighted regression model. Features are determined of the HVAC based on differences between the measured and predicted state variables. The features are classified to determine a condition of the HVAC equipment.
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