US 11,726,507 B2
Compensation for internal power dissipation in ambient room temperature estimation
Daniel Adam Warren, San Francisco, CA (US); Michael Mitchell, San Francisco, CA (US); Gwendolyn van der Linden, Mountain View, CA (US); Ford Rylander, Mountain View, CA (US); Brian Silverstein, Mountain View, CA (US); and Arun Raghupathy, Pleasanton, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on Aug. 28, 2020, as Appl. No. 17/6,777.
Prior Publication US 2022/0066484 A1, Mar. 3, 2022
Int. Cl. G05D 23/32 (2006.01); G01K 1/20 (2006.01); G05D 23/19 (2006.01)
CPC G05D 23/32 (2013.01) [G01K 1/20 (2013.01); G05D 23/1917 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A smart-home device comprising:
a temperature sensor;
one or more energy-consuming subsystems;
one or more processors programmed to perform operations comprising:
receiving a temperature measurement from the temperature sensor for an ambient environment surrounding the temperature sensor;
receiving one or more inputs from the one or more energy-consuming subsystems representative of a measured amount of electrical power being consumed by the one or more energy-consuming subsystems, wherein the one or more inputs comprises a measurement of an output of a voltage regulator representing an internal main power rail of the smart-home device, and the measurement is indicative of an overall power sourced from a power supply of the smart-home device and consumed by the smart-home device as a whole;
providing the one or more inputs from the one or more energy-consuming subsystems to a model that is trained to calculate an effect of power-consuming activity of the one or more energy-consuming subsystems on the temperature measurement from the temperature sensor, wherein the model comprises a thermal model of the smart-home device that models how heat from the one or more energy consuming subsystems affects the smart-home device; and
calculating an estimate of the temperature of the ambient environment by compensating the temperature measurement from the temperature sensor using the effect of the power-consuming activity of the one or more energy-consuming subsystems.