JPH11154290A - Photoelectronic separated-type sensor - Google Patents
Photoelectronic separated-type sensorInfo
- Publication number
- JPH11154290A JPH11154290A JP32152597A JP32152597A JPH11154290A JP H11154290 A JPH11154290 A JP H11154290A JP 32152597 A JP32152597 A JP 32152597A JP 32152597 A JP32152597 A JP 32152597A JP H11154290 A JPH11154290 A JP H11154290A
- Authority
- JP
- Japan
- Prior art keywords
- light
- transmitting unit
- spot
- optical axis
- receiving unit
- 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.)
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- Fire-Detection Mechanisms (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、火災による煙を感
知する光電式分離型感知器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photoelectric separation type sensor for detecting smoke caused by a fire.
【０００２】[0002]
【従来の技術】光電式分離型感知器は、光を放射する送
光部とその放射光を受光する受光部とを備え、光路上に
火災の煙が侵入し受光部での受光量が減少することによ
って火災を検知する。図４及び図５に光電式分離型感知
器の光軸調整の一例を示す。2. Description of the Related Art A photoelectric separation type sensor has a light transmitting section for emitting light and a light receiving section for receiving the radiated light. Fire smoke enters the optical path and the amount of light received by the light receiving section decreases. To detect a fire. 4 and 5 show an example of optical axis adjustment of the photoelectric separation type sensor.
【０００３】上記に説明した光電式分離型感知器に設置
時において、送光部１と受光部１０の相互の光軸調整を
行う場合は、図４及び図５に示すように予め図５の切換
スイッチＳを切り換えて送光部１又は受光部１０のレン
ズの回りのＤゾーンを赤く点滅させる。When the optical axis of the light transmitting unit 1 and the light receiving unit 10 is to be adjusted at the time of installation in the above-described photoelectric separation type sensor, as shown in FIGS. The changeover switch S is switched to blink the D zone around the lens of the light transmitting unit 1 or the light receiving unit 10 in red.
【０００４】そして送光部１と受光部１０のそれぞれに
設けた視準孔Ａ，Ａ’、ミラーＭ、又は視準孔Ｂ，Ｂを
用いて、他方側の受光部１０又は送光部１の前記Ｄゾー
ンの赤い点滅が、使用する例えば視準孔Ａ，Ａ’の中心
にくるように、感知器本体の調整ねじＰ1 …Ｐ3 を回し
て感知器本体の角度を調整するようにしていた。The collimating holes A and A ', the mirror M, and the collimating holes B and B provided in the light transmitting unit 1 and the light receiving unit 10, respectively, are used to form the light receiving unit 10 or the light transmitting unit 1 on the other side. Turn the adjusting screws P 1 ... P 3 of the sensor body to adjust the angle of the sensor body so that the red blinking of the D zone is centered on the collimation holes A, A ′ to be used. I was
【０００５】[0005]
【発明が解決しようとする課題】しかし、上記の光軸調
整方法は、足場を組んで高所で行う必要があり難しい作
業となっており、また光軸調整するのにかなりの時間を
要していた。However, the above-described optical axis adjustment method is a difficult task since it needs to be performed at a high place with a scaffold, and it takes a considerable amount of time to adjust the optical axis. I was
【０００６】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、その目的とするところは、高所であって
も容易に光軸調整ができる光電式分離型感知器を提供す
ることにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a photoelectric separation type sensor capable of easily adjusting an optical axis even at a high place. It is in.
【０００７】[0007]
【課題を解決するための手段】上記した課題を解決する
ために、請求項１記載の発明では、送光部から照射され
た光が光路上に侵入した火災の煙により減光され受光部
の受光量が減少することを利用して火災を検知する光電
式分離型感知器であって、光軸調整用の可視光線を発生
する発光装置を送光部及び受光部に具備し、当該可視光
線をスポット照射して対向する受光部側又は送光部側の
感知器本体に当たるスポット光線を確認して光軸調整を
行う。In order to solve the above-mentioned problems, according to the first aspect of the present invention, the light emitted from the light transmitting unit is reduced by the smoke of the fire entering the optical path and the light of the light receiving unit is reduced. A photoelectric separation type sensor for detecting a fire by utilizing a decrease in the amount of received light, comprising: a light emitting device that generates visible light for adjusting an optical axis in a light transmitting unit and a light receiving unit; Is spot-irradiated, and a spot light beam which strikes the sensor main body on the light receiving unit side or the light transmitting unit side opposite thereto is confirmed, and the optical axis is adjusted.
【０００８】請求項２記載の発明では、送光部から照射
された光が光路上に侵入した火災の煙により減光され受
光部の受光量が減少することを利用して火災を検知する
光電式分離型感知器であって、送光部から照射する火災
検出用の光源を、可視光のスポット光源に切り替えて当
該可視光のスポット光線が対向する受光部側の感知器本
体に当たるのを確認して送光部側の光軸調整を行う。According to the second aspect of the present invention, there is provided a photoelectric detecting device for detecting a fire by utilizing the fact that the light emitted from the light transmitting portion is reduced by the smoke of the fire entering the optical path and the amount of light received by the light receiving portion is reduced. Switch the fire detection light source illuminated from the light transmitter to the visible light spot light source, and confirm that the visible light spot beam hits the sensor body on the opposite light receiving unit side. Then, the optical axis of the light transmitting unit is adjusted.
【０００９】請求項３記載の発明では、送光部から照射
された光が光路上に侵入した火災の煙により減光され受
光部の受光量が減少することを利用して火災を検知する
光電式分離型感知器であって、送光部から照射する火災
検出用の光源を、可視光のスポット光源に切り替えて当
該可視光のスポット光線が対向する受光部側の感知器本
体に当たるのを確認して送光部側の光軸調整を行い、か
つ光軸調整用の可視光線を発生する発光装置を受光部に
具備し、当該可視光線をスポット照射して対向する送光
部側の感知器本体に当たるスポット光線を確認して受光
部側の光軸調整を行なう。According to the third aspect of the present invention, there is provided a photoelectric sensor for detecting a fire utilizing the fact that the light emitted from the light transmitting unit is reduced by the smoke of a fire entering the optical path and the amount of light received by the light receiving unit is reduced. Switch the fire detection light source illuminated from the light transmitter to the visible light spot light source, and confirm that the visible light spot beam hits the sensor body on the opposite light receiving unit side. The light-receiving device includes a light-emitting device that adjusts the optical axis of the light-transmitting unit and generates visible light for adjusting the optical axis, and irradiates the visible light with a spot to oppose the light-transmitting unit. After confirming the spot beam hitting the main body, the optical axis of the light receiving section is adjusted.
【００１０】[0010]
【発明の実施の形態】本発明の第１の実施形態を図１に
基づいて説明する。なお、従来例と実質的に同じ機能を
有する部材には同じ符号を付してある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIG. Members having substantially the same functions as those of the conventional example are denoted by the same reference numerals.
【００１１】光電式分離型感知器は、送光部１と受光部
１０とを有し、図２に示すように送光部１には赤外発光
ダイオードＤ1 を具備し、受光部１０にはＰｉｎホトダ
イオードＤ3 を具備して、煙の発生を検出している。[0011] photoelectric separator type sensor has a light transmitting unit 1 and the light receiving portion 10, the light transmitting unit 1 as shown in FIG. 2 includes an infrared light emitting diode D 1, the light receiving portion 10 It is provided with a Pin photodiode D 3, and detects the occurrence of smoke.
【００１２】また、送光部１と受光部１０の双方には、
図１に示すように光軸調整用の発光装置５，１５を備え
ている。この発光装置５，１５は、可視光を発すること
ができる集光性のよいレーザダイオードで構成してあ
る。また、この発光装置５，１５の光軸は、前記火災検
出用の赤外発光ダイオードＤ1 とＰｉｎホトダイオード
Ｄ3 で構成する光軸に対して、平行に形成してある。Also, both the light transmitting unit 1 and the light receiving unit 10
As shown in FIG. 1, light emitting devices 5 and 15 for adjusting the optical axis are provided. The light emitting devices 5 and 15 are composed of laser diodes having a good light-collecting property capable of emitting visible light. The optical axis of the light emitting device 5, 15 with respect to the optical axis constituting an infrared light emitting diode D 1 and Pin photodiode D 3 for the fire detection, are formed in parallel.
【００１３】そして、光電式分離型感知器の光軸を調整
するときには、送光部１及び受光部１０の発光装置５，
１５を片方づつ発光させて、対向する受光部１０又は送
光部１の感知器本体に、スポット照射される可視光線を
目視しながら、調整ねじＰ1…Ｐ3 を回して送光部１又
は受光部１０の感知器本体の設置角度を調整するのであ
る。When adjusting the optical axis of the photoelectric separation type sensor, the light emitting devices 5 and 5 of the light transmitting unit 1 and the light receiving unit 10 are adjusted.
15 to emit light one by one, and the sensor body of the light receiving unit 10 or the light transmitting unit 1 facing while visually visible light to be spot irradiation, the light transmitting unit 1 by turning the adjusting screw P 1 ... P 3 or The installation angle of the sensor main body of the light receiving unit 10 is adjusted.
【００１４】次に第２の実施形態を図２及び図３に基づ
いて説明する。この光電式分離型感知器は、送光部１か
ら照射する火災検出用の赤外発光ダイオードＤ1 （図３
参照）を有するとともに、可視光を発することができる
集光性のよいレーザダイオードＤ2 と反射鏡ｍとレンズ
２とを有している。Next, a second embodiment will be described with reference to FIGS. This photoelectric separation type sensor is an infrared light emitting diode D 1 for fire detection emitted from the light transmitting unit 1 (FIG. 3).
Together with a reference), and has a good laser diode D 2 of the light-collecting capable of emitting visible light and a reflecting mirror m and the lens 2.
【００１５】そして、光電式分離型感知器の光軸を調整
するときには、前記レーザダイオードＤ2 を照光させ
て、この可視光が受光部１０の感知器本体に照射される
のを、目視で確認しながら、送光部１の調整ねじＰ1 …
Ｐ3 を回して送光部１の感知器本体の角度を調整するの
である。When adjusting the optical axis of the photoelectric separation type sensor, the laser diode D 2 is illuminated, and it is visually confirmed that the visible light is irradiated on the sensor body of the light receiving section 10. While adjusting screw P 1 of light transmitting unit 1
Turn P 3 is to adjust the angle of the sensor body of the light transmitting unit 1.
【００１６】尚、受光部１０の感知器本体の角度も、送
光部１側に向ける必要があるが、これは、第１の実施の
形態と同じく、受光部１０側に光軸調整用の発光装置１
５を設けて、発光装置１５から発する可視光線が、送光
部１の感知器本体に当たるを目視しながら、受光部１０
側の調整ねじＰ1 …Ｐ3 を回して受光部１０の感知器本
体の角度を調整する。The angle of the sensor main body of the light receiving section 10 must also be directed to the light transmitting section 1 side, but this is the same as in the first embodiment. Light emitting device 1
The light receiving unit 10 is provided while the visible light emitted from the light emitting device 15 strikes the sensor main body of the light transmitting unit 1.
Turn the adjustment screws P 1 ... P 3 on the side to adjust the angle of the sensor main body of the light receiving unit 10.
【００１７】[0017]
【発明の効果】請求項１記載の発明によれば、光電式分
離型感知器の光軸調整において、光軸調整用の可視光線
を発生する発光装置を送光部及び受光部に具備し、当該
可視光線をスポット照射して対向する受光部側又は送光
部側の感知器本体に当たるスポット光線を確認して光軸
調整を行うので、高所での視準孔による確認を無くする
ことができるという効果を奏する。According to the first aspect of the present invention, in the optical axis adjustment of the photoelectric separation type sensor, a light emitting device that generates visible light for adjusting the optical axis is provided in the light transmitting unit and the light receiving unit. Because the visible light is spot-irradiated and the optical axis is adjusted by confirming the spot light beam hitting the sensor body on the light-receiving unit side or the light-transmitting unit side opposite to it, it is possible to eliminate the confirmation by the collimation hole at a high place. It has the effect of being able to.
【００１８】請求項２記載の発明によれば、送光部から
照射する火災検出用の光源を、可視光のスポット光源に
切り替えて当該可視光のスポット光線が対向する受光部
側の感知器本体に当たるのを確認して送光部側の光軸調
整を行うので、高所での視準孔による確認を無くするこ
とができるという効果を奏する。According to the second aspect of the present invention, the light source for fire detection radiated from the light transmitting unit is switched to a visible light spot light source, and the sensor body on the light receiving unit side facing the visible light spot light beam. Since the optical axis adjustment on the light transmitting unit side is performed after confirming that the above condition is satisfied, there is an effect that the confirmation by the collimation hole at a high place can be eliminated.
【００１９】請求項３記載の発明によれば、送光部から
照射する火災検出用の光源を、可視光のスポット光源に
切り替えて当該可視光のスポット光線が対向する受光部
側の感知器本体に当たるのを確認して送光部側の光軸調
整を行い、かつ光軸調整用の可視光線を発生する発光装
置を受光部に具備し、当該可視光線をスポット照射して
対向する送光部側の感知器本体に当たるスポット光線を
確認して受光部側の光軸調整を行なうので、高所での視
準孔による確認を無く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, the light source for fire detection radiated from the light transmitting unit is switched to a visible light spot light source, and the sensor body on the light receiving unit side facing the visible light spot light beam. The light-receiving device is provided with a light-emitting device that adjusts the optical axis of the light-transmitting portion after confirming that the light-emitting portion is hit, and that emits visible light for adjusting the optical axis, and irradiates the visible light with a spot to face the light-transmitting portion Since the optical axis of the light receiving unit is adjusted by checking the spot light beam that strikes the sensor body on the side, it is possible to eliminate the need to check the collimation hole at a high place.
【図１】本発明の第１の実施の形態の送光部及び受光部
を示す図である。FIG. 1 is a diagram illustrating a light transmitting unit and a light receiving unit according to a first embodiment of the present invention.
【図２】本発明の第２の実施の形態の送光部及び受光部
を示す図である。FIG. 2 is a diagram illustrating a light transmitting unit and a light receiving unit according to a second embodiment of the present invention.
【図３】同上の送光部の詳細図である。FIG. 3 is a detailed view of a light transmitting unit according to the first embodiment.
【図４】従来例の光電式分離型感知器の一例を示す説明
図である。FIG. 4 is an explanatory view showing an example of a conventional photoelectric separation type sensor.
【図５】従来例の光電式分離型感知器の光軸調整方法を
示す説明図である。FIG. 5 is an explanatory diagram showing an optical axis adjustment method of a conventional photoelectric separation type sensor.
１ 送光部 ５ 発光装置 １０ 受光部 １５ 発光装置 Ｄ1 赤外発光ダイオード Ｄ2 可視光のスポット光源 Ｄ3 ＰｉｎホトダイオードREFERENCE SIGNS LIST 1 light transmitting unit 5 light emitting device 10 light receiving unit 15 light emitting device D 1 infrared light emitting diode D 2 spot light source of visible light D 3 Pin photodiode
Claims (3)
した火災の煙により減光され受光部の受光量が減少する
ことを利用して火災を検知する光電式分離型感知器であ
って、光軸調整用の可視光線を発生する発光装置を送光
部及び受光部に具備し、当該可視光線をスポット照射し
て対向する受光部側又は送光部側の感知器本体に当たる
スポット光線を確認して光軸調整を行うことを特徴とす
る光電式分離型感知器。1. A photoelectric separation type sensor for detecting a fire by utilizing the fact that light emitted from a light transmitting unit is dimmed by smoke of a fire entering an optical path and the amount of light received by a light receiving unit is reduced. A light emitting device that emits visible light for adjusting the optical axis is provided in the light transmitting unit and the light receiving unit, and the visible light is irradiated with the spot to hit the opposing light receiving unit side or the sensor body on the light transmitting unit side. A photoelectric-separated sensor, wherein the optical axis is adjusted after checking the light beam.
した火災の煙により減光され受光部の受光量が減少する
ことを利用して火災を検知する光電式分離型感知器であ
って、送光部から照射する火災検出用の光源を、可視光
のスポット光源に切り替えて当該可視光のスポット光線
が対向する受光部側の感知器本体に当たるのを確認して
送光部側の光軸調整を行うことを特徴とする光電式分離
型感知器。2. A photoelectric separation type sensor for detecting a fire by utilizing the fact that light emitted from a light transmitting unit is dimmed by the smoke of a fire entering an optical path and the amount of light received by a light receiving unit is reduced. Then, the light source for fire detection emitted from the light transmitting unit is switched to the visible light spot light source, and it is confirmed that the visible light spot beam hits the sensor body on the opposite light receiving unit side. A photoelectric separation type sensor, wherein the optical axis is adjusted.
した火災の煙により減光され受光部の受光量が減少する
ことを利用して火災を検知する光電式分離型感知器であ
って、送光部から照射する火災検出用の光源を、可視光
のスポット光源に切り替えて当該可視光のスポット光線
が対向する受光部側の感知器本体に当たるのを確認して
送光部側の光軸調整を行い、かつ光軸調整用の可視光線
を発生する発光装置を受光部に具備し、当該可視光線を
スポット照射して対向する送光部側の感知器本体に当た
るスポット光線を確認して受光部側の光軸調整を行なう
ことを特徴とする光電式分離型感知器。3. A photoelectric separation type sensor for detecting a fire by utilizing the fact that light emitted from a light transmitting unit is dimmed by the smoke of a fire entering an optical path and the amount of light received by a light receiving unit is reduced. Then, the light source for fire detection emitted from the light transmitting unit is switched to the visible light spot light source, and it is confirmed that the visible light spot beam hits the sensor body on the opposite light receiving unit side. The light receiving unit is provided with a light emitting device that adjusts the optical axis and generates visible light for adjusting the optical axis, and irradiates the visible light with a spot to check the spot light hitting the sensor body on the opposite light transmitting unit side A photoelectric separation type sensor, wherein the optical axis of the light receiving section is adjusted by performing the adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32152597A JPH11154290A (en) | 1997-11-21 | 1997-11-21 | Photoelectronic separated-type sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32152597A JPH11154290A (en) | 1997-11-21 | 1997-11-21 | Photoelectronic separated-type sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11154290A true JPH11154290A (en) | 1999-06-08 |
Family
ID=18133553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32152597A Withdrawn JPH11154290A (en) | 1997-11-21 | 1997-11-21 | Photoelectronic separated-type sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11154290A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2426323A (en) * | 2005-05-16 | 2006-11-22 | Fire Fighting Entpr Ltd | Infra-red beam smoke detection system |
| WO2008152745A1 (en) * | 2007-06-13 | 2008-12-18 | Hochiki Corporation | Position specifying system |
| KR101029712B1 (en) * | 2009-05-26 | 2011-04-18 | 주식회사 큐브인 | Photoelectric separated smoke detecting system having lager for controlling equilibrium of mirror |
| JP2014059784A (en) * | 2012-09-19 | 2014-04-03 | Nohmi Bosai Ltd | Photoelectric separation type sensor |
| CN107064074A (en) * | 2012-08-10 | 2017-08-18 | 能美防灾株式会社 | Photoelectric separation type detector |
-
1997
- 1997-11-21 JP JP32152597A patent/JPH11154290A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2426323A (en) * | 2005-05-16 | 2006-11-22 | Fire Fighting Entpr Ltd | Infra-red beam smoke detection system |
| WO2008152745A1 (en) * | 2007-06-13 | 2008-12-18 | Hochiki Corporation | Position specifying system |
| KR101029712B1 (en) * | 2009-05-26 | 2011-04-18 | 주식회사 큐브인 | Photoelectric separated smoke detecting system having lager for controlling equilibrium of mirror |
| CN107064074A (en) * | 2012-08-10 | 2017-08-18 | 能美防灾株式会社 | Photoelectric separation type detector |
| JP2014059784A (en) * | 2012-09-19 | 2014-04-03 | Nohmi Bosai Ltd | Photoelectric separation type sensor |
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