| 摘要 |
A thermostat ( 10 ) for sensing the ambient temperature in an environment includes an enclosure ( 100 ) housing a temperature sensor ( 20 ) for sensing the temperature within the enclosure, a temperature display device ( 30 ), a liquid crystal display (LCD) backlight ( 40 ) operative in its on state to illuminate the temperature display. A controller ( 50 ) operatively associated with the thermostat monitors the current on/off state of the backlight and the length of time the backlight has been in its current state, estimates a temperature correction factor using a simplified Discrete Kalman Filter estimator, and applies the temperature correction factor to correct the sensed temperature for the heat generated by the backlight ( 40 ).
|
