US 11,985,403 B2
Method and apparatus for preventing heat damage to thermal imaging camera
Yang Zhou, Zhejiang (CN); Zhenhua Xiao, Zhejiang (CN); Yunfei Tang, Zhejiang (CN); Liping Wang, Zhejiang (CN); Jianjun Xu, Zhejiang (CN); Yongyou Pan, Zhejiang (CN); Jun Liu, Zhejiang (CN); and Peng Zhou, Zhejiang (CN)
Assigned to HANGZHOU HIKMICRO SENSING TECHNOLOGY CO., LTD., Hangzhou (CN)
Appl. No. 17/609,683
Filed by HANGZHOU HIKMICRO SENSING TECHNOLOGY CO., LTD., Zhejiang (CN)
PCT Filed May 13, 2020, PCT No. PCT/CN2020/090062
§ 371(c)(1), (2) Date Nov. 8, 2021,
PCT Pub. No. WO2020/248761, PCT Pub. Date Dec. 17, 2020.
Claims priority of application No. 201910500156.9 (CN), filed on Jun. 11, 2019.
Prior Publication US 2022/0224812 A1, Jul. 14, 2022
Int. Cl. H04N 23/52 (2023.01); G01J 5/00 (2022.01); G01J 5/04 (2006.01); G08B 21/18 (2006.01)
CPC H04N 23/52 (2023.01) [G01J 5/048 (2013.01); G08B 21/182 (2013.01); G01J 2005/0077 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for preventing heat damage to a thermal imaging camera,
wherein the method comprises:
obtaining a thermal imaging picture of the thermal imaging camera;
detecting whether the thermal imaging picture shows that a high-temperature object appears in the picture of the thermal imaging camera;
confirming that the thermal imaging picture shows that a high-temperature object appears in the picture, generating a heat damage alarm signal, and closing a baffle if the baffle is not closed currently;
wherein after confirming that the thermal imaging picture shows that a high-temperature object appears in the picture, the method further comprises: starting a non-uniformity correction timing of protection mechanism, and executing a non-uniformity correction operation when a duration of the non-uniformity correction timing of protection mechanism reaches a preset duration of the non-uniformity correction timing of protection mechanism.