JPH01135588U - - Google Patents
Info
- Publication number
- JPH01135588U JPH01135588U JP3101888U JP3101888U JPH01135588U JP H01135588 U JPH01135588 U JP H01135588U JP 3101888 U JP3101888 U JP 3101888U JP 3101888 U JP3101888 U JP 3101888U JP H01135588 U JPH01135588 U JP H01135588U
- Authority
- JP
- Japan
- Prior art keywords
- sound
- alarm
- doorway
- detects
- photoelectric conversion
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
Description
添付の図面は本考案の一実施例による警報装置
の構成を示すブロツク図である。
１……奏鳴回路、２……警報回路、３……モー
ド選択スイツチ、４……作動スイツチ、８……光
電変換素子、９……制御装置。
The accompanying drawing is a block diagram showing the structure of an alarm device according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Sounding circuit, 2...Alarm circuit, 3...Mode selection switch, 4...Operation switch, 8...Photoelectric conversion element, 9...Control device.
Claims (1)
警報回路と、これら奏鳴回路および警報回路の一
方を選択的に作動可能状態に置くモード選択スイ
ツチと、開扉を検知して選択された回路を作動さ
せる作動スイツチとを有するものにおいて、扉口
の周囲の明るさを検知する光電変換素子と、この
光電変換素子の出力信号を受信し、扉口の周囲の
明るさに応じてモード選択スイツチを切り替える
制御装置とを設けたことを特徴とする扉口の警報
装置。 A sound circuit that produces a sound, an alarm circuit that issues an alarm sound, a mode selection switch that selectively enables one of the sound circuit and the alarm circuit, and a mode selection switch that detects when a door is opened and makes a selection. and a photoelectric conversion element that detects the brightness around the doorway, and a photoelectric conversion element that receives the output signal of this photoelectric conversion element and detects the brightness around the doorway. A doorway alarm device comprising a control device for switching a mode selection switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3101888U JPH01135588U (en) | 1988-03-10 | 1988-03-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3101888U JPH01135588U (en) | 1988-03-10 | 1988-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01135588U true JPH01135588U (en) | 1989-09-18 |
Family
ID=31256572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3101888U Pending JPH01135588U (en) | 1988-03-10 | 1988-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01135588U (en) |
-
1988
- 1988-03-10 JP JP3101888U patent/JPH01135588U/ja active Pending