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Title:
SLAVE UNIT OF AUTOMATIC FIRE ALARM SYSTEM, MASTER UNIT OF AUTOMATIC FIRE ALARM SYSTEM AND AUTOMATIC FIRE ALARM SYSTEM USING THEM
Document Type and Number:
Japanese Patent JP2016192044
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a slave unit capable of reducing the possibility of making an unexpected erroneous alarm.SOLUTION: A slave unit 1 in an automatic fire alarm system 100 includes a communication section 16, a determination section 171 and a control unit 172. The communication section 16 communicates with a master unit 2. Determining an occurrence of a fire, the determination section 171 enters into a standby state to issue a fire alarm, and when determining to establish an interlock, the determination section 171 enters into a standby state to issue a notification of establishing interlock. The control unit 172 notifies either one of the fire alarm or the interlock notification to the master unit 2 by changing the current flowing on a pair of wires 51 and 52. When receiving a permission from the master unit 2 in the standby state, the control unit 172 notifies a specific notification which includes at least one of the fire alarm and the interlock notification to the master unit 2.SELECTED DRAWING: Figure 1

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Inventors:
GOSHONOO KAZUHIKO
MIZUTA TOMOAKI
OI MOTOHIRO
LI RAN
ITO SUSUMU
Application Number:
JP2015071304A
Publication Date:
November 10, 2016
Filing Date:
March 31, 2015
Export Citation:
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Assignee:
PANASONIC IP MAN CORP
International Classes:
G08B17/00; G08B25/00
Domestic Patent References:
JP2005215738A2005-08-11
JPH10241071A1998-09-11
JPH08241483A1996-09-17
JP2005352917A2005-12-22
Attorney, Agent or Firm:
Keisei Nishikawa
Takeshi Sakaguchi
Hidetoshi Kitade
Nakaishi Haruki