US 12,439,494 B2
Measuring lighting levels using a visible light sensor
Craig Alan Casey, Coopersburg, PA (US); Brent Protzman, Easton, PA (US); and James P. Steiner, Royersford, PA (US)
Assigned to Lutron Technology Company LLC, Coopersburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on May 18, 2023, as Appl. No. 18/199,143.
Application 18/199,143 is a continuation of application No. 17/308,417, filed on May 5, 2021, granted, now 11,696,382.
Application 17/308,417 is a continuation of application No. 15/838,282, filed on Dec. 11, 2017, granted, now 11,019,709, issued on May 25, 2021.
Claims priority of provisional application 62/432,477, filed on Dec. 9, 2016.
Prior Publication US 2023/0292421 A1, Sep. 14, 2023
Int. Cl. G06K 9/00 (2022.01); G01V 8/20 (2006.01); G05B 15/02 (2006.01); G06T 5/20 (2006.01); G06T 5/50 (2006.01); G06T 7/11 (2017.01); G06T 7/246 (2017.01); G06V 10/10 (2022.01); G06V 10/141 (2022.01); G06V 10/22 (2022.01); G06V 20/52 (2022.01); H04N 1/40 (2006.01); H04N 23/62 (2023.01); H04N 23/661 (2023.01); H04N 23/667 (2023.01); H05B 45/10 (2020.01); H05B 45/12 (2020.01); H05B 45/20 (2020.01); H05B 47/105 (2020.01); H05B 47/11 (2020.01); H05B 47/115 (2020.01); H05B 47/125 (2020.01); H05B 47/13 (2020.01); H05B 47/19 (2020.01); F24F 11/56 (2018.01); F24F 11/88 (2018.01); F24F 110/10 (2018.01); F24F 120/10 (2018.01); F24F 130/30 (2018.01); H04N 7/18 (2006.01)
CPC H05B 47/105 (2020.01) [G01V 8/20 (2013.01); G05B 15/02 (2013.01); G06T 5/20 (2013.01); G06T 5/50 (2013.01); G06T 7/11 (2017.01); G06T 7/246 (2017.01); G06V 10/10 (2022.01); G06V 10/141 (2022.01); G06V 10/235 (2022.01); G06V 20/52 (2022.01); H04N 1/40012 (2013.01); H04N 23/62 (2023.01); H04N 23/661 (2023.01); H04N 23/667 (2023.01); H05B 45/10 (2020.01); H05B 45/12 (2020.01); H05B 45/20 (2020.01); H05B 47/11 (2020.01); H05B 47/115 (2020.01); H05B 47/125 (2020.01); H05B 47/13 (2020.01); H05B 47/19 (2020.01); F24F 11/56 (2018.01); F24F 11/88 (2018.01); F24F 2110/10 (2018.01); F24F 2120/10 (2018.01); F24F 2130/30 (2018.01); G06T 2207/10004 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/10048 (2013.01); G06T 2207/20224 (2013.01); G06T 2207/30196 (2013.01); G06T 2207/30232 (2013.01); H04N 7/185 (2013.01); H04N 2201/0084 (2013.01)] 50 Claims
OG exemplary drawing
 
13. An apparatus for controlling at least one lighting load in a space, the apparatus comprising:
a control circuit configured to:
store a plurality of images of the space, wherein each image of the plurality of images comprises a contribution of artificial light provided by the at least one lighting load at a different respective intensity in the space;
retrieve at least one first image of the space from the plurality of images of the space based on a present intensity of the at least one lighting load in the space;
remove the contribution of artificial light in the at least one first image from a second image to determine a contribution of daylight; and
generate control instructions for controlling the at least one lighting load in the space, the control instructions based on the contribution of daylight determined by removing the contribution of artificial light in the at least one first image from the second image.