JPS5483397A - Fire alarming system - Google Patents
Fire alarming systemInfo
- Publication number
- JPS5483397A JPS5483397A JP15126277A JP15126277A JPS5483397A JP S5483397 A JPS5483397 A JP S5483397A JP 15126277 A JP15126277 A JP 15126277A JP 15126277 A JP15126277 A JP 15126277A JP S5483397 A JPS5483397 A JP S5483397A
- Authority
- JP
- Japan
- Prior art keywords
- fault
- receiver
- monitor
- repeater
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Abstract
PURPOSE: To increase the reliability for the system by securing the mutual monitor between the receiver and the alarm within the center unit.
CONSTITUTION: The following units are provided: repeater R to monitor the fault for more than one unit of fire detecting terminal S and the detector circuit; receiver PP to monitor the fault for more than one unit of repeater R and the repeating circuit; and alarm device QQ to display the fault information collected by receiver PP from repeater R as well as to produce the fault alarm tone. Receiver PP and device QQ form center unit CE, and PP and QQ have the mutual fault monitor within CE. Thus, the reliability of the system can be enhanced.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15126277A JPS5483397A (en) | 1977-12-15 | 1977-12-15 | Fire alarming system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15126277A JPS5483397A (en) | 1977-12-15 | 1977-12-15 | Fire alarming system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5483397A true JPS5483397A (en) | 1979-07-03 |
Family
ID=15514808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15126277A Pending JPS5483397A (en) | 1977-12-15 | 1977-12-15 | Fire alarming system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5483397A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59129136U (en) * | 1983-02-18 | 1984-08-30 | オムロン株式会社 | Photoelectric switch monitoring device |
JP2022017546A (en) * | 2017-07-07 | 2022-01-25 | ホーチキ株式会社 | Tunnel disaster prevention system |
-
1977
- 1977-12-15 JP JP15126277A patent/JPS5483397A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59129136U (en) * | 1983-02-18 | 1984-08-30 | オムロン株式会社 | Photoelectric switch monitoring device |
JP2022017546A (en) * | 2017-07-07 | 2022-01-25 | ホーチキ株式会社 | Tunnel disaster prevention system |
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