US 12,431,008 B2
Performing a self-clean of a fire sensing device
Benjamin H. Wolf, Leicester (GB); Christopher Dearden, Melton Mowbray (GB); Michael Barson, Nuneaton (GB); Kamal Raja Ganesan, Chennai (IN); Vardhaman Babu Jarale, Bengaluru (IN); and Barath Murugavel, Bangalore (IN)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Jul. 18, 2022, as Appl. No. 17/866,800.
Prior Publication US 2024/0021069 A1, Jan. 18, 2024
Int. Cl. G08B 29/04 (2006.01); B08B 5/02 (2006.01); B08B 13/00 (2006.01)
CPC G08B 29/043 (2013.01) [B08B 5/02 (2013.01); B08B 13/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A fire sensing device, comprising:
an optical scatter chamber;
an air movement device; and
a controller configured to:
receive a command to perform a self-clean of the fire sensing device from a computing device located remotely from the fire sensing device responsive to the computing device receiving a selection of the fire sensing device from a list or a map and a selection to perform the self-clean of the fire sensing device;
cause the air movement device to activate to perform the self-clean responsive to receiving the command to self-clean from the computing device located remotely from the fire sensing device, wherein the air movement device is configured to activate for a particular period of time to remove unwanted particles from the optical scatter chamber of the fire sensing device;
measure a quantity of particles in the optical scatter chamber of the fire sensing device after the particular period of time has passed; and
report the fire sensing device as clean to the computing device responsive to the measured quantity of particles being less than or equal to a baseline quantity of particles.