JPS5836487U - Fire alarm system using a private telephone - Google Patents
Fire alarm system using a private telephoneInfo
- Publication number
- JPS5836487U JPS5836487U JP13118681U JP13118681U JPS5836487U JP S5836487 U JPS5836487 U JP S5836487U JP 13118681 U JP13118681 U JP 13118681U JP 13118681 U JP13118681 U JP 13118681U JP S5836487 U JPS5836487 U JP S5836487U
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- fire
- fire detector
- oscillation circuit
- activated
- 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.)
- Granted
Links
Landscapes
- Alarm Systems (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、本考案の全体構成を示したブロック図、第２
図は本考案で用いるアダプタの一実施例を示したブロッ
ク図、第３図は本考案で用いる受信回路の一実施例を示
した回路ブロック図、第４図は受信及び発信時における
電話回線の電圧波形を示したタイムチャート図である。
１０・・・・・・交換器、１２，１２．１２ａ〜１２ｎ
・・・・・・電話回線、１４．１４ａ〜１４ｎ・・・・
・・電話子機、１６．１６ａ〜１６ｎ・・・・・・アダ
プタ、１８゜１８ａ〜１８ｎ・・・・・・火災感知器、
２０．２０ａ〜２０・・・・・・室外表示灯、２２．２
２ａ〜２２ｎ・・・・・・アダプタ、２４・・・・・・
火災受信機、２６・・・・・・蓄電池、２８・・・・・
・リレー、２８ａ〜２８Ｃ・・・・・・リレー接点、３
０・・・・・・発振回路、３２・・・・・・復旧スイッ
チ、３６・・・・・・バンドパスフィルタ、３８・・・
・・・アンプ、４０・・・・・・検波器、４２・・・・
・・蓄積回路、４４・・・・・・スイッチング回路、４
６・・・・・・受信リレ→。Figure 1 is a block diagram showing the overall configuration of the present invention;
The figure is a block diagram showing an embodiment of the adapter used in the present invention, Fig. 3 is a circuit block diagram showing an embodiment of the receiving circuit used in the present invention, and Fig. 4 is a block diagram showing an embodiment of the receiving circuit used in the present invention. FIG. 3 is a time chart diagram showing voltage waveforms. 10...Exchanger, 12, 12.12a to 12n
...Telephone line, 14.14a-14n...
...Telephone handset, 16.16a-16n...adapter, 18°18a-18n...fire detector,
20.20a~20...Outdoor indicator light, 22.2
2a-22n...adapter, 24...
Fire receiver, 26...Storage battery, 28...
・Relay, 28a-28C...Relay contact, 3
0...Oscillation circuit, 32...Recovery switch, 36...Band pass filter, 38...
...Amplifier, 40...Detector, 42...
...Storage circuit, 44...Switching circuit, 4
6... Reception relay →.
Claims (1)
傍にアダプタを介して火災感知器を接続し、 該アダプタは、電話回線に印加されている直流電圧で常
時充電され前記火災感知器へ電源を供給する蓄電池と、
火災感知器が作動したとき該蓄電池からの電源供給で作
動し前記電話回線に全回線共通の特定周波数の交流信号
を送出する発振回路と、該発振回路及び前記火災感知器
への電源供給を断つ復旧スイッチとを備え、 前記構内電話の交換機の近傍に、前記電話回線のそれぞ
れに接続され、前記発振回路からの特定周波数の交流信
号を受信したときに、受信回線に基づいて火災感知器が
作動した室を識別して表示する受信回路を備えた火災受
信機を設置したことを特徴とする構内電話を利用した火
災報知機。[Scope of Claim for Utility Model Registration] A fire detector is connected via an adapter near the cordless handset of a local telephone installed in each room of a building with multiple rooms, and the adapter detects a direct current applied to the telephone line. a storage battery that is constantly charged with voltage and supplies power to the fire detector;
When the fire detector is activated, an oscillation circuit that is activated by the power supply from the storage battery and sends an AC signal of a specific frequency common to all lines to the telephone line, and the power supply to the oscillation circuit and the fire detector is cut off. A recovery switch is connected to each of the telephone lines near the exchange of the private telephone, and when an AC signal of a specific frequency is received from the oscillation circuit, a fire detector is activated based on the receiving line. A fire alarm system using a private telephone, characterized by installing a fire receiver equipped with a receiving circuit that identifies and displays a room in which a fire has occurred.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13118681U JPS5836487U (en) | 1981-09-03 | 1981-09-03 | Fire alarm system using a private telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13118681U JPS5836487U (en) | 1981-09-03 | 1981-09-03 | Fire alarm system using a private telephone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5836487U true JPS5836487U (en) | 1983-03-09 |
| JPH0229501Y2 JPH0229501Y2 (en) | 1990-08-08 |
Family
ID=29924778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13118681U Granted JPS5836487U (en) | 1981-09-03 | 1981-09-03 | Fire alarm system using a private telephone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5836487U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49101623U (en) * | 1972-12-22 | 1974-09-02 | ||
| JPS5099700A (en) * | 1973-12-29 | 1975-08-07 |
-
1981
- 1981-09-03 JP JP13118681U patent/JPS5836487U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49101623U (en) * | 1972-12-22 | 1974-09-02 | ||
| JPS5099700A (en) * | 1973-12-29 | 1975-08-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0229501Y2 (en) | 1990-08-08 |
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