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US 7,142,125 B2Granted
Fan monitoring for failure prediction
AssigneeHewlett-Packard Development Company, L.P.
InventorsThane M. Larson, Christopher G. Malone
Life of this patent
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Abstract
A method for monitoring a fan comprises measuring power usage of the fan, determining a derivative of the measured fan power usage, tracking the derivative over time, and predicting impending fan failure based on the tracked fan power usage derivative.
Claims22
A method for monitoring a fan in an electronic system comprising:
- measuring power usage of the fan;
- determining a derivative of the measured fan power usage;
- tracking the derivative over time;
- and
- predicting impending fan failure based on the tracked fan power usage derivative.
2 more elements
A fan condition monitoring apparatus comprising:
- a power sensor adapted for coupling to at least one fan in an electronic system and measuring fan power usage;
- and
- a controller coupled to the power sensor and adapted to determine a derivative of the measured fan power usage, track the derivative over time, and predict impending fan failure based in the tracked fan power usage derivative.
An electronic system comprising:
- a power supply;
- at least one fan coupled to the power supply;
- at least one electronic component coupled to the power supply;
- and
- a fan condition monitoring device coupled to the at least one fan and further comprising:
- a power sensor adapted for coupling to at least one fan in an electronic system and measuring fan power usage;
- and
- a controller coupled to the power sensor and adapted to determine a derivative of the measured fan power usage, track the derivative over time, and predict impending fan failure based on the tracked fan power usage derivative.
5 more elements
Dependencies are inferred from the claim text.