US 12,076,452 B2
Modulated ultraviolet light sanitizing system and method
Jamie J. Childress, Mercer Island, WA (US)
Assigned to The Boeing Company, Chicago, IL (US)
Filed by THE BOEING COMPANY, Chicago, IL (US)
Filed on Jun. 2, 2021, as Appl. No. 17/336,595.
Claims priority of provisional application 63/118,303, filed on Nov. 25, 2020.
Claims priority of provisional application 63/091,444, filed on Oct. 14, 2020.
Prior Publication US 2022/0111086 A1, Apr. 14, 2022
Int. Cl. A61L 2/10 (2006.01); A61L 2/24 (2006.01); A61L 2/26 (2006.01)
CPC A61L 2/10 (2013.01) [A61L 2/24 (2013.01); A61L 2/26 (2013.01); A61L 2202/11 (2013.01); A61L 2202/14 (2013.01); A61L 2202/25 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A sanitizing system comprising:
an ultraviolet (UV) lamp configured to emit UV light into a target space;
an occupancy sensor configured to monitor the target space and generate sensor signals indicative of an occupancy of the target space by at least one person; and
a control unit comprising one or more processors operably connected to the occupancy sensor and the UV lamp, the control unit configured to:
receive the sensor signals generated by the occupancy sensor,
analyze historical occupancy data that includes the sensor signals that are generated by the occupancy sensor over a first time period to determine a periodic occupancy trend for the target space, and
modulate an irradiance of the UV light emitted by the UV lamp during a second time period based on the periodic occupancy trend, wherein the first time period has a longer duration than the second time period and ends prior to a start of the second time period.