JPH0168593U - - Google Patents
Info
- Publication number
- JPH0168593U JPH0168593U JP1987162076U JP16207687U JPH0168593U JP H0168593 U JPH0168593 U JP H0168593U JP 1987162076 U JP1987162076 U JP 1987162076U JP 16207687 U JP16207687 U JP 16207687U JP H0168593 U JPH0168593 U JP H0168593U
- Authority
- JP
- Japan
- Prior art keywords
- output
- light
- alarm
- voltage drop
- battery
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Emergency Alarm Devices (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
第１図は本考案の一実施例を示した回路ブロツ
ク図、第２図は本考案の他の実施例を示した回路
ブロツク図である。
１：電池、２：発振回路、３：発光駆動回路、
４：発光素子、５：受光素子、６：火災検出回路
、７：インバータ、８：警報回路、８ａ：火災警
報回路、８ｂ：警報回路（電池電圧低下用）、９
：電圧低下検出回路、１０：トランジスタ、１２
：受光検出回路、１３：Ｃｄｓ、１４：Ｎチヤン
ネルＦＥＴ、１５：ＡＮＤゲート、ＺＤ：ツエナ
ダイオード、Ｒ１〜Ｒ４：抵抗、Ｄ１，Ｄ２：ダ
イオード。
FIG. 1 is a circuit block diagram showing one embodiment of the present invention, and FIG. 2 is a circuit block diagram showing another embodiment of the present invention. 1: battery, 2: oscillation circuit, 3: light emission drive circuit,
4: Light emitting element, 5: Light receiving element, 6: Fire detection circuit, 7: Inverter, 8: Alarm circuit, 8a: Fire alarm circuit, 8b: Alarm circuit (for battery voltage drop), 9
: Voltage drop detection circuit, 10: Transistor, 12
: Light reception detection circuit, 13: Cds, 14: N-channel FET, 15: AND gate, ZD: Zener diode, R1 to R4: Resistor, D1, D2: Diode.
Claims (1)
出する電圧低下検出手段と、該電圧低下検出手段
からの出力により電池電圧の低下を警報出力する
警報出力手段とを備えた電池式警報装置に於いて
、 周囲の明るさを検知する受光素子と、該受光素
子からの受光出力が設定レベル以下に低下したこ
とを検出する受光出力検出手段と、該受光出力検
出手段からの出力により前記電圧低下検出手段の
設定レベルを低レベルに切換えるか又は前記警報
出力手段の警報出力を禁止する制御手段とを設け
たことを特徴とする電池式警報装置。[Claims for Utility Model Registration] Comprising a voltage drop detection means for detecting that the battery voltage has fallen below a set level, and an alarm output means for outputting an alarm about the battery voltage drop based on the output from the voltage drop detection means. In a battery-powered alarm device, a light-receiving element detects ambient brightness, a light-receiving output detecting means detects when the light-receiving output from the light-receiving element has fallen below a set level, and the light-receiving output detecting means and control means for switching the set level of the voltage drop detection means to a low level or prohibiting the alarm output of the alarm output means based on the output of the battery-powered alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162076U JPH0168593U (en) | 1987-10-23 | 1987-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162076U JPH0168593U (en) | 1987-10-23 | 1987-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0168593U true JPH0168593U (en) | 1989-05-02 |
Family
ID=31445577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987162076U Pending JPH0168593U (en) | 1987-10-23 | 1987-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0168593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009146232A (en) * | 2007-12-15 | 2009-07-02 | Panasonic Electric Works Co Ltd | Alarm |
-
1987
- 1987-10-23 JP JP1987162076U patent/JPH0168593U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009146232A (en) * | 2007-12-15 | 2009-07-02 | Panasonic Electric Works Co Ltd | Alarm |
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