Patent

Registered Fire monitoring system based on the detection of sound field variation and the method

음장변화 감지 기반의 화재 감시 시스템 및 그 방법
Inventors
Kang-Ho Park, Lee Sung Q, Kim Jongdae, Yang Woo Seok
Application No.
13783185 (2013.03.01)
Publication No.
20130250729 (2013.09.26)
Registration No.
9030916 (2015.05.12)
Country
UNITED STATES
Project Code
11MB2100, Development of self-powered smart sensor node platform for smart and green building, Kim Jongdae
Abstract
Disclosed are a method and a system for monitoring a fire based on a detection of sound field variation. The system for monitoring a fire based on a detection of sound field variation includes: a sound generator outputting a sound wave within a defined space according to input voltage; a sound receiver receiving the sound wave within the defined space and obtaining a sound pressure from the received sound wave; and a fire monitor using a sound transfer function representing a ratio of the sound pressure obtained by the sound receiver to input voltage of the sound generator in a preparation mode to calculate reference sound pressure information, using the sound transfer function in a monitoring mode to calculate current sound pressure information, and comparing the reference sound pressure information with the current sound pressure information to determine whether a fire occurs.
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Status Patent Country KIPRIS
Registered 음장변화 감지 기반의 화재 감시 방법 및 시스템 KOREA KIPRIS