Title:
FIRE ALARM AND FIRE ALARM SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/208136
Kind Code:
A1
Abstract:
Provided is a fire alarm capable of achieving a long lifetime of a battery even in the case where communication is performed with another fire alarm and a management device. The fire alarm (30) is provided with a communication circuit (32) that receives a signal transmitted thereto by intermittent reception, and a control unit (33). The communication circuit (32) communicates with the other fire alarm by a first communication system and communicates with the management device by a second communication system different from the first communication system. The control unit (33) drives the communication circuit (32) in a cycle of the intermittent reception. After driven, the communication circuit (32) measures a signal intensity of a signal received by the first communication system and measures a signal intensity of a signal received by the second communication system. In the case where the result of either measurement is equal to or more than a threshold value, the communication circuit (32) receives the signal by the communication system by which the measurement result becomes equal to or more than the threshold value.
Inventors:
KURITA MASANORI
YOSHIKI KAZUHISA
SAKAMOTO KOJI
SIMADA YOSITAKE
YOSHIKI KAZUHISA
SAKAMOTO KOJI
SIMADA YOSITAKE
Application Number:
PCT/JP2016/002765
Publication Date:
December 29, 2016
Filing Date:
June 08, 2016
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04B1/40; H04W4/38; G08B17/00; G08B25/10; H04W52/02; H04W88/06
Foreign References:
| JP2013235554A | 2013-11-21 | |||
| JP2008258702A | 2008-10-23 | |||
| JP2011118698A | 2011-06-16 |
Other References:
See also references of EP 3312997A4
Attorney, Agent or Firm:
KAMATA, Kenji et al. (JP)
Kenji Kamata (JP)
Kenji Kamata (JP)
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