US 11,733,227 B2
Method and system for detecting a false alarm event in gas detection
KiHo Bang, Seoul (KR); JePhil Ahn, Seoul (KR); Dongil Ko, Seoul (KR); ByungYong Lee, Seoul (KR); and Chikang Lee, Seoul (KR)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Oct. 20, 2020, as Appl. No. 17/74,885.
Claims priority of application No. 10-2019-0139479 (KR), filed on Nov. 4, 2019.
Prior Publication US 2021/0132015 A1, May 6, 2021
Int. Cl. G01N 33/00 (2006.01); G01M 3/04 (2006.01); G01L 11/00 (2006.01)
CPC G01N 33/007 (2013.01) [G01L 11/00 (2013.01); G01M 3/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gas-detecting apparatus, having a gas inlet and a gas outlet, for detecting a false alarm, the gas-detecting apparatus comprising:
a control module;
a sensor module, electrically connected with the control module, the sensor module having a sensor inlet and a sensor outlet, the sensor inlet being fluidly coupled to the gas inlet of the gas-detecting apparatus; and
an air chamber, having an air inlet and an air outlet, wherein the air inlet is fluidly coupled to the gas outlet of the gas-detecting apparatus and the air outlet is fluidly coupled with the gas inlet of the gas-detecting apparatus;
wherein the control module is configured to:
receive a first sensing signal for a first level of gas from the sensor module;
determine whether a magnitude of the first sensing signal is higher than a first threshold value; and
cause the air chamber to supply ambient air to the sensor inlet of the sensor module, when the magnitude of the first sensing signal is higher than the first threshold value.