Title:
FIRE ALARM SYSTEM
Document Type and Number:
Japanese Patent JP2010027085
Kind Code:
A
Abstract:
To provide a fire alarm system for performing the communication tests of all fire alarm devices with a simple operation.
Upon receiving a test command signal transmitted from a parent device 1, a child device 2 transmits a response signal including identification information that is allocated to itself in advance. Upon receiving a test operation at an operation portion 14, the parent device 1 transmits the test command signal, and upon receiving response signals, identifies the transmitting child devices 2 based on the identification information, thereby checking and outputting a notice of whether there is a child device 2 that is not transmitting the response signal or not, before a predetermined time elapses thereafter.
Inventors:
OSADA MASAHIRO
OKUMURA KOICHI
YOSHITSURU TOMOHIRO
WATANABE HIROTOSHI
OKUMURA KOICHI
YOSHITSURU TOMOHIRO
WATANABE HIROTOSHI
Application Number:
JP2009252364A
Publication Date:
February 04, 2010
Filing Date:
November 02, 2009
Export Citation:
Assignee:
PANASONIC ELEC WORKS CO LTD
International Classes:
G08B17/00; G08B25/10
Domestic Patent References:
| JP2008004033A | 2008-01-10 | |||
| JPH0382658U | 1991-08-22 | |||
| JPH03250399A | 1991-11-08 | |||
| JP2005182252A | 2005-07-07 | |||
| JP2006333090A | 2006-12-07 | |||
| JP2007104213A | 2007-04-19 | |||
| JPH1022945A | 1998-01-23 |
Attorney, Agent or Firm:
Keisei Nishikawa
Atsuo Mori
Atsuo Mori
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