Patent ID: 8671315

Claim:
A method of prognostic analysis comprising: providing a physical system; providing a plurality of sensors for the physical system for sensing a physical status of the physical system; acquiring a sensor data set from each sensor, each sensor data set comprising one or more sensor data points; configuring a sensor data point window for the plurality of sensor data sets, the sensor data point window being a time window; calculating a plurality of normalized sensor data sets from the plurality of sensor data sets based on the sensor data point window; determining a health level for the physical system as a function of the plurality of normalized sensor data sets; and providing a prognosis for the physical system based on the health level of the physical system, wherein said health level is an indicator of a performance of the physical system, and the indicator measuring how the normalized sensor data of the plurality of sensor data sets vary individually in comparison to a total variance of the plurality of sensor data sets.