Title:
TUNNEL EMERGENCY EQUIPMENT
Document Type and Number:
Japanese Patent JP2020146480
Kind Code:
A
Abstract:
To enable quick and safe evacuation action to an evacuation site by outputting a voice, from a speaker provided at tunnel emergency equipment, for guiding the evacuation to an optimal evacuation site, by taking account of a physical relationship between a fire occurrence location and a speaker installation location.SOLUTION: A plurality of directional speakers installed in a tunnel 10, when speakers are located at distance places (outside a dangerous range with respect to a fire occurrence location) from the fire occurrence location, output an evacuation-guide voice message of guiding evacuation to an evacuation site located at a shortest distance and, when speakers are located at places (within the dangerous range with respect to the fire occurrence location) close to the fire occurrence location, output an evacuation-guide voice message of guiding to an evacuation site located in a direction away from the fire occurrence location.SELECTED DRAWING: Figure 9
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Inventors:
TONOMURA TOSHIAKI
ANDO TAKUSHI
ANDO TAKUSHI
Application Number:
JP2020091045A
Publication Date:
September 17, 2020
Filing Date:
May 26, 2020
Export Citation:
Assignee:
HOCHIKI CO
International Classes:
A62B3/00; A62C35/20; A62C3/00; E21F17/18
Domestic Patent References:
| JP2015082181A | 2015-04-27 | |||
| JP2010046316A | 2010-03-04 | |||
| JPH10188156A | 1998-07-21 |
Attorney, Agent or Firm:
Susumu Takeuchi