JPH0194147U - - Google Patents
Info
- Publication number
- JPH0194147U JPH0194147U JP18952087U JP18952087U JPH0194147U JP H0194147 U JPH0194147 U JP H0194147U JP 18952087 U JP18952087 U JP 18952087U JP 18952087 U JP18952087 U JP 18952087U JP H0194147 U JPH0194147 U JP H0194147U
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- sound
- alarm
- set value
- emits
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Emergency Alarm Devices (AREA)
Description
第１図は、本考案による自動車用後退警報装置
の一実施例を示す図である。
１：車輌後退警報回路、２：制御回路、３：警
報器、４：警報発振器、５：抵抗、６：リレース
イツチ、７：スイツチ、８：バツテリー、９：マ
イク、１０：低周波増幅器、１１：出力増幅器、
１２：レベル調整器、１３：リレー。
FIG. 1 is a diagram showing an embodiment of a reversing warning device for an automobile according to the present invention. 1: Vehicle reverse warning circuit, 2: Control circuit, 3: Alarm, 4: Alarm oscillator, 5: Resistor, 6: Relay switch, 7: Switch, 8: Battery, 9: Microphone, 10: Low frequency amplifier, 11 : Output amplifier,
12: Level adjuster, 13: Relay.
Claims (1)
において、警報音を発する警報器と、該警報器を
駆動する駆動器と、自動車外部の音を入力するマ
イクと、該マイクから入力した音が設定値より大
きい場合に警報音量を大きくすると共に、マイク
から入力した音が設定値より小さい場合に警報音
量を小さくするように駆動器を制御する制御回路
とを備えることを特徴とする自動車用後退警報装
置。 In an automobile reversing warning device that emits a warning sound when reversing, there is an alarm that emits the warning sound, a driver that drives the alarm, a microphone that inputs sound from the outside of the vehicle, and a set value for the sound input from the microphone. a control circuit that controls a driver to increase the alarm volume when the sound input from the microphone is smaller than the set value, and to reduce the alarm volume when the sound input from the microphone is smaller than the set value. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18952087U JPH0194147U (en) | 1987-12-15 | 1987-12-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18952087U JPH0194147U (en) | 1987-12-15 | 1987-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0194147U true JPH0194147U (en) | 1989-06-21 |
Family
ID=31480545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18952087U Pending JPH0194147U (en) | 1987-12-15 | 1987-12-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0194147U (en) |
-
1987
- 1987-12-15 JP JP18952087U patent/JPH0194147U/ja active Pending
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