Japan, Feb. 27 -- HOCHIKI CORP has got intellectual property rights for 'FIRE DETECTION METHOD.' Other related details are as follows:
Application Number: JP,2025-023109
Category (FI): G08B17/06@A
Stage: PROBLEM TO BE SOLVED: To provide a fire sensor capable of reliably detecting a fire without introducing smoke.SOLUTION: A sensor 1 for detecting a fire occurring in a target area comprises a fire detection unit 141 that detects the fire occurring in the target area based on sound speed information in the target area and an attenuation coefficient indicating a degree of attenuation of a sound wave in the target area, and further comprises: a wave transmitting unit 111 that transmits a sound wave to the target area; and a first sound receiving unit 112A and a second sound receiving unit 112B that receive the sound wave, wherein based on the sound waves received by the first sound receiving unit 112A and the second sound receiving unit 112B, the fire detection unit 141 performs first processing for calculating the sound speed information and the attenuation coefficient, second processing for specifying a temperature of the target area based on the calculated sound speed information and attenuation coefficient, and third processing for detecting the fire occurring in the target area based on the specified temperature.SELECTED DRAWING: Figure 2 (Grant)
Filing Date: Feb. 17, 2025
Publication Date: April 17, 2025
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
