JPH11134567A - Theft preventive detector - Google Patents
Theft preventive detectorInfo
- Publication number
- JPH11134567A JPH11134567A JP9298858A JP29885897A JPH11134567A JP H11134567 A JPH11134567 A JP H11134567A JP 9298858 A JP9298858 A JP 9298858A JP 29885897 A JP29885897 A JP 29885897A JP H11134567 A JPH11134567 A JP H11134567A
- Authority
- JP
- Japan
- Prior art keywords
- sensitivity
- switch
- cover
- security detector
- detector
- 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
- 230000003449 preventive effect Effects 0.000 title abstract 4
- 230000035945 sensitivity Effects 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、防犯検知器に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security detector.
【０００２】[0002]
【従来の技術】従来、熱線検知方式の防犯検知器１にお
いて、その感度調整方法は図４及び図５に示すように、
防犯検知器１を天井に設置した後において、施工工事を
行う人がその検知エリアを歩行して検知対象となり、防
犯検知器１が適切に検出動作するか否かを確認してい
た。その際、検知感度が不充分な場合や感度が鋭敏すぎ
る等の場合には、防犯検知器１のカバー２をボディ３か
ら取り外し、内部のプリント基板４に設けている感度調
整ボリューム５をドライバー等の工具で回転して調整
し、再度カバー２をボディ３に装着し、検知エリアを歩
行して防犯検知器１の検出動作を確認していた。2. Description of the Related Art Conventionally, in a security detector 1 of a heat ray detection system, the sensitivity adjustment method is as shown in FIGS.
After installing the security detector 1 on the ceiling, a person who performs construction works walks in the detection area and becomes a detection target, and checks whether the security detector 1 performs an appropriate detection operation. At this time, if the detection sensitivity is insufficient or the sensitivity is too sharp, the cover 2 of the security detector 1 is removed from the body 3 and the sensitivity adjustment volume 5 provided on the internal printed circuit board 4 is changed by a driver or the like. The cover 2 was attached to the body 3 again, and the detection operation of the security detector 1 was confirmed while walking in the detection area.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
防犯検知器１の感度調整方法では、カバー２の着脱及び
感度調整ボリューム５での調整作業を何回か行わなけれ
ばならない場合があり手間であるとともに、防犯検知器
１の取付高さが高い場合には、三脚，脚立等が必要な作
業となり手間でありまた危険をともなうこともあった。However, in the above-described method of adjusting the sensitivity of the security detector 1, the mounting and dismounting of the cover 2 and the adjusting operation with the sensitivity adjusting volume 5 need to be performed several times, which is troublesome. At the same time, when the height of the security detector 1 is high, a tripod, a stepladder and the like are required, which is troublesome and sometimes dangerous.
【０００４】本発明は上記の問題点を解決するためにな
されたものであり、その目的とするところは、カバーの
着脱作業をともなわない簡単な方法により感度調整を行
うことができる防犯検知器を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a security detector capable of performing sensitivity adjustment by a simple method which does not involve attaching and detaching a cover. To provide.
【０００５】[0005]
【課題を解決するための手段】前記の課題を解決するた
めに、請求項１記載の発明では、検知領域からの赤外線
を検出して警報出力する赤外線検出式の防犯検知器であ
って、防犯検知器のハウジングの一部に可動部を設け、
かつ前記可動部の動きにより動作するスイッチを設け
て、このスイッチの動作により防犯検知器の感度を変更
する。According to the first aspect of the present invention, there is provided an infrared detection type security detector for detecting infrared rays from a detection area and outputting an alarm. A movable part is provided in a part of the housing of the detector,
In addition, a switch that operates by the movement of the movable part is provided, and the sensitivity of the security detector is changed by the operation of the switch.
【０００６】請求項２記載の発明では、防犯検知器のハ
ウジングとしてボディとカバーとを有し、カバーを前記
可動部としカバーがボディに対して動いたときに前記ス
イッチが動作する。According to the second aspect of the present invention, the housing of the security detector has a body and a cover, and the switch operates when the cover is the movable portion and the cover moves relative to the body.
【０００７】請求項３記載の発明では、前記スイッチの
動作により、防犯検知器の判別回路のアンプゲインを切
り替えて防犯検知器の感度を変更する。According to the third aspect of the present invention, the sensitivity of the security detector is changed by switching the amplifier gain of the discrimination circuit of the security detector by the operation of the switch.
【０００８】請求項４記載の発明では、変更し得る防犯
検知器の感度を複数感度設け、前記スイッチの動作ごと
に感度を変更する。In the invention according to claim 4, a plurality of sensitivities of the security detector which can be changed are provided, and the sensitivities are changed for each operation of the switch.
【０００９】請求項５記載の発明では、感度の変更のた
びに表示手段により表示する。According to the fifth aspect of the invention, each time the sensitivity is changed, the sensitivity is displayed by the display means.
【００１０】[0010]
【発明の実施の形態】本発明の一実施の形態を図１乃至
図３に基づいて説明する。図１は防犯検知器の要部の断
面図、図２は防犯検知器の電気回路図、図３は動作を示
すタイミングチャートである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a sectional view of a main part of the security detector, FIG. 2 is an electric circuit diagram of the security detector, and FIG. 3 is a timing chart showing the operation.
【００１１】防犯検知器１は、赤外線（熱線）を検出す
る焦電素子を有する検知器であって、ボディ１０とカバ
ー１１とを具備している。カバー１１はボディ１０に対
して少なくともカバー１１の端部１１ａが可動できるよ
うにしてあり、この実施の形態では、カバー１１を上方
へ押し上げると端部１１ａも上方へ移動する。カバー１
１の端部１１ａに対する他端側は、端部１１ａと同様に
ボディ１０に遊嵌状態とするか、または他端側はボディ
１０に固定してカバー１０の弾性を利用して端部１１ａ
を上方に可動するようにしてもよい。端部１１ａの直上
には、プリント基板１２の下面側にマイクロスイッチで
構成するスイッチ１３が設けてあり、前記カバー１１
を、施工者が棒等を用いて押し上げることにより、カバ
ー１１の端部１１ａの上面が、スイッチ１３のレバー１
３L を押し上げてスイッチ１３は動作することができ
る。プリント基板１２には、後述する感度変更の度に点
灯する発光ダイオード１５が設けてある。The security detector 1 is a detector having a pyroelectric element for detecting infrared rays (heat rays), and includes a body 10 and a cover 11. At least the end 11a of the cover 11 is movable with respect to the body 10 in the cover 11, and in this embodiment, when the cover 11 is pushed upward, the end 11a also moves upward. Cover 1
The other end of the first end 11a is loosely fitted to the body 10 in the same manner as the end 11a, or the other end is fixed to the body 10 and the elasticity of the cover 10 is used for the end 11a.
May be moved upward. Immediately above the end 11a, a switch 13 composed of a microswitch is provided on the lower surface side of the printed circuit board 12, and the cover 11 is provided.
Is pushed up using a rod or the like, so that the upper surface of the end 11a of the cover 11
By pushing 3 L up, the switch 13 can operate. The printed circuit board 12 is provided with a light emitting diode 15 that is turned on each time the sensitivity is changed as described later.
【００１２】次に、図２に基づいて防犯検知器１の電気
回路図について説明する。電源ＶCCには、ＣＰＵ２０、
発光ダイオード１５、スイッチ１３のａ接点２１、３個
のリレー２２，２３，２４、しきい値による判別回路と
してのオペアンプ２５が接続してある。更に、各リレー
２２，２３，２４にはそれぞれトランジスタ２６，２
７，２８が接続してあり、各トランジスタ２６，２７，
２８はＣＰＵ２０からの出力により動作するようにＣＰ
Ｕ２０の各ポートＢ，Ｃ，Ｄに接続してある。Next, an electric circuit diagram of the security detector 1 will be described with reference to FIG. The power supply V CC has a CPU 20,
The light emitting diode 15, an a contact 21 of the switch 13, three relays 22, 23, and 24, and an operational amplifier 25 as a determination circuit based on a threshold are connected. Further, each of the relays 22, 23, 24 has a transistor 26, 2 respectively.
7, 28 are connected, and each transistor 26, 27,
28 is a CP which operates by an output from the CPU 20.
It is connected to each port B, C, D of U20.
【００１３】スイッチ１３の一端もＣＰＵ２０に接続し
てあり、発光ダイオード１５は、ＣＰＵ２０のポートＬ
B がＨｉ出力からＬｏ出力になったときに発光するよう
にしてある。One end of the switch 13 is also connected to the CPU 20, and the light emitting diode 15 is connected to the port L of the CPU 20.
Light is emitted when B changes from Hi output to Lo output.
【００１４】一方、オペアンプ２５側は、＋端子側に、
防犯検知器１の検知出力が入力され、−端子側には、調
整抵抗ＲとコンデンサＣの直列回路が接続してあり、そ
の中間分岐点に、リレー２２，２３，２４の各接点３
１，３２，３３が調整抵抗Ｒ1，Ｒ2 ，Ｒ3 とともに接
続してあり、各調整抵抗Ｒ，Ｒ2 ，Ｒ3 はそれぞれオペ
アンプ２５の出力側に接続してある。On the other hand, the operational amplifier 25 side is connected to the + terminal side,
A detection output of the security detector 1 is input, and a series circuit of an adjustment resistor R and a capacitor C is connected to a negative terminal side, and each contact 3 of the relays 22, 23, and 24 is provided at an intermediate branch point.
1 , 32 and 33 are connected together with the adjustment resistors R 1 , R 2 and R 3 , and each of the adjustment resistors R, R 2 and R 3 is connected to the output side of the operational amplifier 25.
【００１５】次に、図３のタイミングチャートを参照し
て、動作を説明する。防犯検知器１は、出荷後、施工工
事を行って電源を投入すると、ＣＰＵ２０のポートＢが
Ｈｉ出力となり、トランジスタ２６が導通し、リレー２
２が駆動し、その接点３１が閉路する。この状態によ
り、施工者は検知エリアを歩行して、この感度におい
て、検知対象を良好に検出するか否かをテストする。こ
のとき、感度が不足している場合は、カバー１１を棒等
で押し上げる。するとスイッチ１３が動作し、スイッチ
１３のａ接点２１が閉路し、ＣＰＵ２０に信号入力され
る。するとＣＰＵ２０のポートＣから信号出力があり、
トランジスタ２７がオンし、リレー２３が駆動し、その
接点３２が閉路する。前記ＣＰＵ２０のポートＣから出
力があると同時に、ＣＰＵ２０のポートＢの信号出力が
なくなり、トランジスタ２６がオフし、リレー２２は非
励磁状態となり、その接点３１は開路する。Next, the operation will be described with reference to the timing chart of FIG. When the security detector 1 is installed and turned on after construction, the port B of the CPU 20 becomes Hi output, the transistor 26 is turned on, and the relay 2
2 is driven and its contact 31 is closed. According to this state, the installer walks the detection area and tests whether or not the detection target can be detected satisfactorily at this sensitivity. At this time, if the sensitivity is insufficient, the cover 11 is pushed up with a stick or the like. Then, the switch 13 is operated, the a contact 21 of the switch 13 is closed, and a signal is input to the CPU 20. Then, there is a signal output from the port C of the CPU 20,
The transistor 27 is turned on, the relay 23 is driven, and the contact 32 is closed. Simultaneously with the output from the port C of the CPU 20, the signal output from the port B of the CPU 20 disappears, the transistor 26 is turned off, the relay 22 is de-energized, and the contact 31 is opened.
【００１６】前記の状態では、接点３１が開路、接点３
２が閉路してオペアンプ２５のアンプゲインが変更さ
れ、感度はアップした状態となっている。また同一のタ
イミングで、ＣＰＵ２０のポートＬB からは２回、Ｈｉ
出力がＬｏ出力になり、発光ダイオード１５は２回発光
して感度の変更を表示する。In the above state, the contact 31 is open and the contact 3
2 is closed, the amplifier gain of the operational amplifier 25 is changed, and the sensitivity is increased. Also at the same timing, twice from port L B of CPU 20, Hi
The output becomes Lo output, and the light emitting diode 15 emits light twice to indicate the change in sensitivity.
【００１７】上記の感度アッフ状態において、再び歩行
テストを行い、感度の確認を行う。そしてまだ、感度が
不足する場合には、もう一度、カバー１１を押し上げ
て、スイッチ１３を動作させ、ポートＤから信号出力し
て、接点３２を開路し、接点３３を閉路して、感度を変
更し、歩行テストを行うのである。In the above sensitivity up state, a walking test is performed again to confirm the sensitivity. If the sensitivity is still insufficient, the cover 11 is pushed up again, the switch 13 is operated, a signal is output from the port D, the contact 32 is opened, the contact 33 is closed, and the sensitivity is changed. Perform a walking test.
【００１８】尚、上記の例では、スイッチ１３の動作に
より、感度をアップしていく構成としたが、順次感度を
ダウンさせていくように構成してもよい。In the above example, the sensitivity is increased by the operation of the switch 13. However, the sensitivity may be sequentially decreased.
【００１９】[0019]
【発明の効果】請求項１記載の発明によれば、防犯検知
器の感度調整を行うときに、カバーの着脱及び感度調整
ボリュームの調整が必要でなくなり、ハウジングの一部
を可動させるだけで容易に感度の変更を行うことができ
るという効果を奏する。According to the first aspect of the invention, when the sensitivity of the security detector is adjusted, it is not necessary to attach and detach the cover and adjust the sensitivity adjustment volume, and it is easy to move only a part of the housing. The effect is that the sensitivity can be changed quickly.
【００２０】請求項２記載の発明によれば、請求項１記
載の発明の効果に加えて、カバーの着脱及び感度調整ボ
リュームの調整が必要でなく、カバーを押すだけの操作
で容易に感度の変更を行うことができるという効果を奏
する。According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, it is not necessary to attach / detach the cover and adjust the sensitivity adjustment volume. There is an effect that a change can be made.
【００２１】請求項３記載の発明によれば、請求項１記
載の発明の効果に加えて、感度変更は、判別回路のアン
プゲインを変えるようにしたので、感度変更のための回
路を簡単に構成することができるという効果を奏する。According to the third aspect of the present invention, in addition to the effect of the first aspect of the present invention, the sensitivity is changed by changing the amplifier gain of the discriminating circuit. The effect that it can comprise is produced.
【００２２】請求項４記載の発明によれば、請求項１記
載の発明の効果に加えて、複数の感度を有し、ハウジン
グの一部を可動させるごとに、その感度を多段階に変更
できるという効果を奏する。According to the invention described in claim 4, in addition to the effect of the invention described in claim 1, it has a plurality of sensitivities, and the sensitivity can be changed in multiple stages each time a part of the housing is moved. This has the effect.
【００２３】請求項５記載の発明によれば、表示手段に
より感度の変更を確認することができるという効果を奏
する。According to the fifth aspect of the invention, there is an effect that the change of the sensitivity can be confirmed by the display means.
【図１】本発明の第１の実施の形態の防犯検知器の要部
の断面図である。FIG. 1 is a sectional view of a main part of a security detector according to a first embodiment of the present invention.
【図２】同上の防犯検知器の電気回路図である。FIG. 2 is an electric circuit diagram of the same security detector.
【図３】同上の動作を示すタイムチャートである。FIG. 3 is a time chart showing the operation of the above.
【図４】従来例の防犯検知器の正面図である。FIG. 4 is a front view of a conventional security detector.
【図５】従来例の防犯検知器の一部を断面とした底面図
である。FIG. 5 is a bottom view in which a part of a conventional security detector is sectioned.
１ 防犯検知器 １０ ボディ １１ 可動部（カバー） １３ スイッチ １５ 表示手段（発光ダイオード） ２５ 判別回路（オペアンプ） DESCRIPTION OF SYMBOLS 1 Security detector 10 Body 11 Movable part (cover) 13 Switch 15 Display means (Light emitting diode) 25 Discrimination circuit (Op amp)
Claims (5)
力する赤外線検出式の防犯検知器であって、防犯検知器
のハウジングの一部に可動部を設け、かつ前記可動部の
動きにより動作するスイッチを設けて、このスイッチの
動作により防犯検知器の感度を変更することを特徴とす
る防犯検知器。An infrared detection type security detector for detecting infrared rays from a detection area and outputting an alarm, wherein a movable part is provided in a part of a housing of the security detector, and operates by the movement of the movable part. A security switch, wherein the sensitivity of the security detector is changed by the operation of the switch.
犯検知器のハウジングとしてボディとカバーとを有し、
カバーを前記可動部としカバーがボディに対して動いた
ときに前記スイッチが動作することを特徴とする防犯検
知器。2. The security detector according to claim 1, further comprising a body and a cover as a housing of the security detector,
A security detector, wherein the switch is operated when the cover is moved with respect to the body by using the cover as the movable portion.
記スイッチの動作により、防犯検知器の判別回路のアン
プゲインを切り替えて防犯検知器の感度を変更すること
を特徴とする防犯検知器。3. The security detector according to claim 1, wherein the sensitivity of the security detector is changed by switching an amplifier gain of a discrimination circuit of the security detector by operating the switch.
更し得る防犯検知器の感度を複数感度設け、前記スイッ
チの動作ごとに感度を変更することを特徴とする防犯検
知器。4. The security detector according to claim 1, wherein a plurality of sensitivities of the security detector that can be changed are provided, and the sensitivity is changed for each operation of the switch.
検知器において、感度の変更のたびに表示手段により表
示することを特徴とする防犯検知器。5. The security detector according to claim 1, wherein the display is displayed by a display means every time the sensitivity is changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29885897A JP3458677B2 (en) | 1997-10-30 | 1997-10-30 | Security detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29885897A JP3458677B2 (en) | 1997-10-30 | 1997-10-30 | Security detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11134567A true JPH11134567A (en) | 1999-05-21 |
| JP3458677B2 JP3458677B2 (en) | 2003-10-20 |
Family
ID=17865112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29885897A Expired - Fee Related JP3458677B2 (en) | 1997-10-30 | 1997-10-30 | Security detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3458677B2 (en) |
-
1997
- 1997-10-30 JP JP29885897A patent/JP3458677B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3458677B2 (en) | 2003-10-20 |
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