US 11,816,971 B2
System and method for risk classification and warning of flashover events
Andrew Long, Woodbury, MN (US); Panagiotis D. Stanitsas, Forest City, CA (US); Jerome Shanko, Jr., Matthews, NC (US); Wesley M. Barbee, Oxboro, NC (US); Matthew M. Shettel, Monroe, NC (US); Matthew Shannon, Salisbury, NC (US); Johnathan R. Graves, Gainesville, GA (US); James W. Howard, North Oaks, MN (US); James B. Snyder, Minneapolis, MN (US); James L. C. Werness, Jr., Edina, MN (US); Jason Patterson, Monroe, NC (US); Ravi Raagav Srinivas, St. Paul, MN (US); and Payas Tikotekar, Woodbury, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/291,172
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Nov. 13, 2019, PCT No. PCT/IB2019/059749
§ 371(c)(1), (2) Date May 4, 2021,
PCT Pub. No. WO2020/100060, PCT Pub. Date May 22, 2020.
Claims priority of provisional application 62/760,734, filed on Nov. 13, 2018.
Prior Publication US 2021/0366255 A1, Nov. 25, 2021
Int. Cl. G08B 21/16 (2006.01); G01J 5/00 (2022.01); G06F 18/24 (2023.01); G06T 7/00 (2017.01); G06V 20/20 (2022.01); G08B 17/06 (2006.01); G08B 17/117 (2006.01); G08B 17/12 (2006.01); G06F 1/24 (2006.01)
CPC G08B 21/16 (2013.01) [G01J 5/00 (2013.01); G06F 1/24 (2013.01); G06T 7/97 (2017.01); G06V 20/20 (2022.01); G08B 17/06 (2013.01); G08B 17/117 (2013.01); G08B 17/12 (2013.01); G01J 2005/0077 (2013.01); G06T 2207/10048 (2013.01); G06T 2207/20084 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A wearable device for predicting a flashover event, the wearable device comprising:
processing circuitry configured to:
receive thermal data from at least one thermal sensor, the thermal data being associated with an environment and including a plurality of sets of a plurality of thermal images, each set of the plurality of thermal images being captured within a respective time window;
determine a time-varying thermal profile based on the thermal data, the time-varying thermal profile including a plurality of characteristics of the thermal data including both a distribution of magnitudes and spatial gradient of temperatures in the environment;
determine a risk of ignition of at least one combustible gas in the environment based on the thermal data; and
trigger at least one action based on the determined risk of ignition, the at least one action including triggering an indication in a display associated with the wearable device, the indication including a predicted time until ignition of at least one combustible gas in the environment.