公开(公告)号：US20240233516A1

公开(公告)日：2024-07-11

申请号：US18540288

申请日：2023-12-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoe-Sung YANG ,  Soocheol Kim ,  Hyunseok Kim ,  Jin Hwa Ryu ,  So Yung Park ,  Kang Bok Lee ,  Yong Tae Lee ,  Kwang-Soo Cho ,  Kyu Won Han

IPC: G08B29/14 ,  G08B17/107 ,  G08B21/18

CPC classification number: G08B29/145 ,  G08B17/107 ,  G08B21/182

Abstract: The present invention is directed to reducing non-fire alarms by distinguishing between smoke caused by an actual fire and non-fire smoke generated in daily life when an event suspected to be a fire occurs. The present invention provides an apparatus and method for determining whether a fire occurs using a smoke detector, which includes a light emitter for generating multiple wavelengths, a light receiver configured to detect light scattered by particles of smoke, and a fire determiner for checking whether the strength of a signal of the detected scattered light exceeds a threshold and generating an alarm, to use characteristics of multiple wavelengths in a photoelectric fire detection apparatus. The fire determiner calculates normalized values by normalizing measured values for the scattered light, and calculates a singular value from the normalized values as a criterion for determining whether the smoke is caused by a fire or a non-fire.