US 12,469,480 B2
Filtering noise in an event device system
Shreelatha M, Bengaluru (IN); and Vimal Gracian, Trivandrum (IN)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Sep. 30, 2022, as Appl. No. 17/957,028.
Prior Publication US 2024/0112666 A1, Apr. 4, 2024
Int. Cl. G10K 11/178 (2006.01)
CPC G10K 11/17853 (2018.01) [G10K 11/17879 (2018.01)] 18 Claims
OG exemplary drawing
 
1. An event device for filtering noise in an event device system, comprising:
a transceiver having an antenna;
a memory; and
a processor configured to execute executable instructions stored in the memory to:
cause a transceiver to perform a short scan for noise via an antenna at a first sampling duration;
in response to the noise being detected by the short scan and a predetermined packet not being received during the short scan, determine a threshold noise value;
in response to the noise detected by the short scan exceeding the threshold noise value in more than a threshold amount of samples, cause the transceiver to perform a long scan for noise via the antenna at a second sampling duration;
determine, based on the noise detected by the long scan, whether a noise level of the noise detected by the long scan exceeds the threshold noise value;
in response to the noise level of the noise detected by the long scan exceeding the threshold noise value, determine whether:
the noise detected by the long scan is detected in at least one of a first channel and a second channel of the event device; and
noise detected in the first channel or the second channel is used for communication with another device;
determine a noise filter threshold for at least the first channel and the second channel in response to noise being detected in the first channel and the second channel; and
apply the noise filter threshold to filter future noise.