JPS5963787U - fire alarm system - Google Patents
fire alarm systemInfo
- Publication number
- JPS5963787U JPS5963787U JP15792382U JP15792382U JPS5963787U JP S5963787 U JPS5963787 U JP S5963787U JP 15792382 U JP15792382 U JP 15792382U JP 15792382 U JP15792382 U JP 15792382U JP S5963787 U JPS5963787 U JP S5963787U
- Authority
- JP
- Japan
- Prior art keywords
- fire detection
- signal
- manned
- fire
- unmanned
- 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
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案による火災警報装置の一実施例を含むブ
ロック図、第２図は第１図に示した煙感知器の一例を示
すブロック図、第３図は第２図に示した感度切換部の一
例を示す回路図、第４図は第２図に示した感度切換部の
他の例を示す回路図である。
１・・・・・・煙感知器、１１・・・・・・発光部、１
２・・・・・・受光部、１３・・・・・・感度切換部、
１３１・・・・・・減衰器、１３２・・・・・・演算増
幅器、１４・・・・・・出力部、１５・・・・・・煙検
出部、２・・・・・・ダイヤル装置、３・・・・・・有
人無人切換部、４・・・・・・電話回線、５・・・・・
・交換機、６・・・・・・センタ装置、ａ、 ｂ・・
・・・・煙検出信号、Ｃ・・・・・・有人無人切換制御
信号、ｄ・・・・・・警報信号。Fig. 1 is a block diagram including an embodiment of the fire alarm system according to the present invention, Fig. 2 is a block diagram showing an example of the smoke detector shown in Fig. 1, and Fig. 3 is a block diagram showing an example of the smoke detector shown in Fig. 2. FIG. 4 is a circuit diagram showing an example of the switching section. FIG. 4 is a circuit diagram showing another example of the sensitivity switching section shown in FIG. 1...Smoke detector, 11...Light emitting part, 1
2... Light receiving section, 13... Sensitivity switching section,
131... Attenuator, 132... Operational amplifier, 14... Output section, 15... Smoke detection section, 2... Dial device , 3...Manned/unmanned switching section, 4...Telephone line, 5...
・Exchange machine, 6... Center device, a, b...
...Smoke detection signal, C...Manned/unmanned switching control signal, d...Alarm signal.
Claims (1)
する火災検出部と有人無人切換制御信号で指示される感
度で前記第１の火災検出信号のレベルを変えた第２の火
災検出信号を出力する感度切換部と前記第２の火災検出
信号が予め定められたレベルを超えているときに警報信
夛を出力する出力する出力部とを有する火災感知器と、
前記有人無人切換制御信号を発生する有人無人Ｗ換装置
とを含むことを特徴とする火災警報装置。A fire detection unit that generates a first fire detection signal according to the situation of a fire detection factor, and a second fire detection signal that changes the level of the first fire detection signal with a sensitivity instructed by a manned/unmanned switching control signal. a fire detector having a sensitivity switching unit that outputs a signal, and an output unit that outputs an alarm signal when the second fire detection signal exceeds a predetermined level;
A fire alarm system comprising: a manned/unmanned W switching device that generates the manned/unmanned switching control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15792382U JPS5963787U (en) | 1982-10-19 | 1982-10-19 | fire alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15792382U JPS5963787U (en) | 1982-10-19 | 1982-10-19 | fire alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5963787U true JPS5963787U (en) | 1984-04-26 |
Family
ID=30348042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15792382U Pending JPS5963787U (en) | 1982-10-19 | 1982-10-19 | fire alarm system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5963787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6433696A (en) * | 1987-07-30 | 1989-02-03 | Nohmi Bosai Kogyo Co Ltd | Fire sensor |
-
1982
- 1982-10-19 JP JP15792382U patent/JPS5963787U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6433696A (en) * | 1987-07-30 | 1989-02-03 | Nohmi Bosai Kogyo Co Ltd | Fire sensor |
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