US 12,393,165 B2
Tracking a position of a motorized window treatment
Thomas F. Rebbert, Hellertown, PA (US); and Robert J. Thompson, Bethlehem, PA (US)
Assigned to Lutron Technology Company LLC, Coopersburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on Mar. 13, 2024, as Appl. No. 18/604,350.
Application 18/604,350 is a continuation of application No. 18/321,422, filed on May 22, 2023, granted, now 11,966,202.
Application 18/321,422 is a continuation of application No. 17/846,549, filed on Jun. 22, 2022, granted, now 11,703,813, issued on Jul. 18, 2023.
Application 17/846,549 is a continuation of application No. 16/526,091, filed on Jul. 30, 2019, granted, now 11,409,248, issued on Aug. 9, 2022.
Claims priority of provisional application 62/711,923, filed on Jul. 30, 2018.
Prior Publication US 2024/0248435 A1, Jul. 25, 2024
Int. Cl. H02P 1/00 (2006.01); G05B 11/01 (2006.01); H02P 3/00 (2006.01); H02P 5/00 (2016.01); E06B 9/24 (2006.01); E06B 9/68 (2006.01)
CPC G05B 11/01 (2013.01) [E06B 2009/2423 (2013.01); E06B 2009/6845 (2013.01); G05B 2219/2653 (2013.01); G05B 2219/45015 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for controlling a motor to open and close a covering material of a motorized window treatment, the method comprising:
controlling the motor to rotate a shaft of the motor for opening and closing the covering material;
receiving sensor signals that are generated by a sensor circuit and indicate a position of the covering material;
determining present states of the sensor signals generated by the sensor circuit;
updating a present position of the covering material in response to changes in states of the sensor signals generated by the sensor circuit;
when powering up, setting power-up states equal to the present states of the sensor signals generated by the sensor circuit;
determining predicted states of the sensor signals generated by the sensor circuit based at least in part on a power-down position recorded at a first time and a final position recorded at a second time after the first time;
comparing the predicted states with the respective power-up states; and
updating the present position of the covering material based on the comparison of the predicted states and the respective power-up states.