US 11,990,017 B2
Thermal camera and infrared sensor based flame detection
Surya Lakshmi Subba Rao Pilla, Bangalore (IN); Bindu Rani Ganesh, Bangalore (IN); and Rodney Royston Watts, Portsmouth (GB)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Jul. 14, 2022, as Appl. No. 17/864,797.
Prior Publication US 2024/0021059 A1, Jan. 18, 2024
Int. Cl. G08B 17/12 (2006.01); G01J 5/00 (2022.01); G08B 29/04 (2006.01); G08B 29/20 (2006.01)
CPC G08B 17/125 (2013.01) [G01J 5/0018 (2013.01); G08B 29/043 (2013.01); G08B 29/20 (2013.01); G01J 2005/0077 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A flame detection apparatus comprising:
a thermal camera configured to generate thermal image data;
an infrared sensor configured to generate infrared sensor data;
a processor operably connected with the thermal camera and the infrared sensor, wherein
the processor is configured to:
receive thermal image data from the thermal camera;
receive infrared sensor data from the infrared sensor;
generate one or more spectral features based on at least one of the thermal image data and the infrared sensor data;
generate a feature map based thermal image data;
generate, based on the spectral features and the feature map, an indication of a flame present and an indication of a false alarm;
determine an indication of flame detected based on the indication of flame present and the indication of a false alarm; and
transmit, based on the indication of flame detected, an alarm signal.