JPS6214591U - - Google Patents
Info
- Publication number
- JPS6214591U JPS6214591U JP10428185U JP10428185U JPS6214591U JP S6214591 U JPS6214591 U JP S6214591U JP 10428185 U JP10428185 U JP 10428185U JP 10428185 U JP10428185 U JP 10428185U JP S6214591 U JPS6214591 U JP S6214591U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- alarm
- ultrasonic wave
- detection signal
- reception detection
- 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
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
Description
第１図は本考案に係る警報装置の好適な実施例
を示すブロツク回路図。第２図は第１図の動作を
示すタイムチヤート。
２…超音波送波回路、１６…超音波受波回路、
３４…警報回路、３６…反射時間設定回路、３８
…ゲート回路、４８…切換スイツチ、５０…目標
設定用表示回路。
FIG. 1 is a block circuit diagram showing a preferred embodiment of the alarm device according to the present invention. FIG. 2 is a time chart showing the operation of FIG. 1. 2... Ultrasonic wave transmitting circuit, 16... Ultrasonic wave receiving circuit,
34...Alarm circuit, 36...Reflection time setting circuit, 38
...gate circuit, 48...changeover switch, 50...display circuit for target setting.
Claims (1)
波送波回路より送波された超音波の反射波を受波
して受波検出信号を出力する超音波受波回路と、
前記超音波受波回路から出力された受波検出信号
の入力によつて警報動作を行なう警報回路と、を
有する警報装置において、前記超音波送波回路が
超音波を送波した時から予め外部操作によつて設
定された時間幅だけ継続する反射時間設定信号を
発生する反射時間設定回路と、該反射時間設定信
号の発生停止時から一定時間のみ前記受波検出信
号が前記警報回路に入力されるのを禁止するゲー
ト回路と、を設けたことを特徴とする警報装置。 an ultrasonic wave transmitting circuit that transmits ultrasonic waves; an ultrasonic wave receiving circuit that receives reflected waves of the ultrasonic waves transmitted from the ultrasonic wave transmitting circuit and outputs a reception detection signal;
an alarm circuit that performs an alarm operation in response to input of a wave reception detection signal output from the ultrasonic wave receiving circuit; a reflection time setting circuit that generates a reflection time setting signal that continues for a time width set by an operation; and the reception detection signal is input to the alarm circuit for a certain period of time after the generation of the reflection time setting signal stops. What is claimed is: 1. An alarm device comprising: a gate circuit that prohibits the alarm from occurring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10428185U JPH0421180Y2 (en) | 1985-07-08 | 1985-07-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10428185U JPH0421180Y2 (en) | 1985-07-08 | 1985-07-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6214591U true JPS6214591U (en) | 1987-01-28 |
| JPH0421180Y2 JPH0421180Y2 (en) | 1992-05-14 |
Family
ID=30977628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10428185U Expired JPH0421180Y2 (en) | 1985-07-08 | 1985-07-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0421180Y2 (en) |
-
1985
- 1985-07-08 JP JP10428185U patent/JPH0421180Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0421180Y2 (en) | 1992-05-14 |
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