防災システム

Japanese Patent JP6963904

B2

PROBLEM TO BE SOLVED: To provide a disaster prevention system which reliably and speedily transmits fire-related information for a specified object.SOLUTION: A disaster prevention system comprises: an automatic fire alarm system 10 provided to a fire prevention object; an emergency broadcasting device 20 that is provided to the fire prevention object and performs an emergency broadcasting through a speaker 21 in accordance with the reception of transfer notification from the automatic fire alarm system; and portable terminals 50a and 50b that output information by voice or screen display. The emergency broadcasting device superimposes a sound signal using an inaudible band on the emergency broadcasting and outputs the sound signal when performing the emergency broadcasting, and the portable terminals include a function for receiving the sound signal using the inaudible band. When receiving the sound signal in the fire prevention object, information required is extracted from the sound signal that is received is extracted, and is outputted by voice or screen display.SELECTED DRAWING: Figure 1

JPS59120177	AUTOMATIC FIRE SENSOR AND FIRE EXTINGUISHING SYSTEM FOR LARGE SPACE
JP7436676	Sensor base and sensing device
JP2001044666	FITTING STRUCTURE FOR INSTRUMENT

Koichi Hishino
Susumu Matsumura
Hiromi Miyashita
Kenzo Yamamoto

JP2017069969A

November 10, 2021

March 31, 2017

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Nomi Disaster Prevention Co., Ltd.

G08B17/00; G08B27/00

JP2015153177A
JP2015029742A
JP2013115317A1
JP2017021750A
JP2014060565A
JP2008234534A
JP2016165052A
JP2016151799A

US20090285445

Michiharu Soga
Kajinami order
Shunichi Ueda
Junichiro Yoshida
Takahiro Matsuoka
Shuji Moizumi
Bessho Kobo
Akihiro Sato

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