JPH0524205Y2 - - Google Patents
Info
- Publication number
- JPH0524205Y2 JPH0524205Y2 JP1987020780U JP2078087U JPH0524205Y2 JP H0524205 Y2 JPH0524205 Y2 JP H0524205Y2 JP 1987020780 U JP1987020780 U JP 1987020780U JP 2078087 U JP2078087 U JP 2078087U JP H0524205 Y2 JPH0524205 Y2 JP H0524205Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiver
- test
- operation signal
- voltage
- 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.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 claims description 28
- 230000007423 decrease Effects 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- 238000007689 inspection Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 101100365087 Arabidopsis thaliana SCRA gene Proteins 0.000 description 1
- 101150105073 SCR1 gene Proteins 0.000 description 1
- 101100134054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) NTG1 gene Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
この考案は、投光器と受光器が分離した位置で
別々に設置される光電式分離型感知器の主として
保守点検あるいは動作試験などを容易ならしめる
試験器に関する。[Detailed description of the invention] [Industrial application field] This invention mainly facilitates maintenance inspections and operation tests of photoelectric separate type sensors in which the emitter and receiver are installed at separate locations. Regarding test equipment.
［従来の技術］
光電式分離型感知器は、体育館あるいは工場な
どの比較的天井が高く、かつ広い空間の火災感知
装置として用いられ、したがつてこのような設置
場所においては保守点検あるいは動作試験などが
極めて困難なことから、遠隔的に試験を行い得る
ものが望まれ、このような目的から例えば本出願
人が先に出願し公開された実開昭58−2657号公報
が知られている。[Prior art] Photoelectric separate type detectors are used as fire detection devices in large spaces with relatively high ceilings, such as gymnasiums and factories, and therefore require maintenance inspections and operation tests in such installation locations. Since it is extremely difficult to conduct tests, it is desirable to be able to conduct tests remotely, and for this purpose, for example, Japanese Utility Model Application No. 58-2657, which was previously filed and published by the present applicant, is known. .
この公報には、投・受光器と火災受信機間にそ
れぞれ投光制御線、変換電圧検出線とを設け、投
光制御線の制御電圧によつて投光器の投光量を変
化させることによつて光源の光量を変化させ、受
光器側から見て煙の侵入と同様の作用をさせ、受
光器側においては透過光量の変化を電圧計によつ
て読み取るようにしたものが示されている。 This publication states that a light emission control line and a conversion voltage detection line are provided between the light emitter/receiver and the fire receiver, respectively, and the amount of light emitted by the light emitter is changed by the control voltage of the light emission control line. In this example, the amount of light from the light source is changed to produce a similar effect to the intrusion of smoke when viewed from the receiver side, and the change in the amount of transmitted light is read by a voltmeter on the receiver side.
このことによつて電圧計の指示と投光量の変化
量との関係が予め判明しているため、光軸のず
れ、あるいは汚染などによる異常を遠隔的に判別
することができるようにしたものである。 This allows the relationship between the voltmeter reading and the amount of change in the amount of light emitted to be known in advance, making it possible to remotely determine abnormalities due to optical axis misalignment or contamination. be.
［考案が解決しようとする問題点］
上述のような従来のものは投光器の光量変化の
ための投光制御線への電圧印加手段として可変抵
抗器を用い、手動で可変することによつて行い、
動作したときには表示灯あるいはブザー，ベルな
どにより確認して行い、そのときの電圧計の指示
を読み取つていた。しかしながら一般にこの種の
試験は微細な電圧変化を知る必要があり、これら
の操作を手動で行うと、正確な動作レベルを知る
ことができないなどの問題があつた。[Problems to be solved by the invention] The conventional method described above uses a variable resistor as a means for applying voltage to the light projection control line to change the light intensity of the projector, and the voltage is manually varied. ,
When the device was working, it was checked using an indicator light, buzzer, or bell, and the voltmeter reading was read. However, this type of test generally requires knowing minute voltage changes, and when these operations are performed manually, there are problems such as the inability to know accurate operating levels.
［問題を解決するための手段］
この考案の光電式分離型感知器用試験器は、投
光器と受光器とを所定の間隔を置いて対向配置
し、上記受光器は上記投光器からの光の減少が所
定以上の時に動作信号を出力して火災の煙を検出
する感知器に接続される光電式分離型感知器用試
験器において、試験を開始する試験スイツチと、
該試験スイツチの操作時に上記投光器の発光電流
が漸次減少するように上記投光器に漸増または漸
減する試験電圧を印加し、上記受光器から出力さ
れる上記動作信号に基づいて上記試験電圧の漸増
または漸減動作を停止して上記動作信号出力時の
上記試験電圧が電圧計で読み取れるようにした電
圧発生器と、上記受光器の上記動作信号に基づい
て感知器の動作状態を表示する動作表示灯とを備
えたことによつて上記問題点を解決してものであ
る。[Means for Solving the Problem] The photoelectric separation type sensor tester of this invention has a light emitter and a light receiver arranged facing each other at a predetermined distance, and the light receiver is arranged so that the light from the light emitter is reduced. A test switch that starts a test in a photoelectric separation type sensor tester connected to a sensor that detects fire smoke by outputting an operating signal when the temperature exceeds a predetermined value;
When the test switch is operated, a test voltage that gradually increases or decreases is applied to the light emitter so that the light emitting current of the light emitter gradually decreases, and the test voltage is gradually increased or decreased based on the operation signal output from the light receiver. A voltage generator whose operation is stopped so that the test voltage when outputting the operation signal can be read with a voltmeter, and an operation indicator lamp which displays the operating state of the sensor based on the operation signal of the light receiver. By providing this, the above problems are solved.
［実施例］
次にこの考案の光電式分離型感知器用試験器を
その一実施例を示す図面をもとに詳細に説明す
る。[Example] Next, the photoelectric separation type sensor tester of this invention will be explained in detail based on a drawing showing an example thereof.
第１図はこの考案の試験器のブロツク図を示
し、第２図はその設置例をそれぞれ示す。なお各
図において同一部品は同一記号を用いて表す。 FIG. 1 shows a block diagram of the tester of this invention, and FIG. 2 shows an example of its installation. In each figure, the same parts are represented using the same symbols.
第１図において、１は投光器，２は受光器，３
は試験器，４は火災受信機をそれぞれ示し、投光
器１には発光素子７をパルス点灯し平均消費電流
を軽減するための発振回路５と、点灯時の光量を
制御する電流制御回路６を備え、この電流制御回
路６の制御入力は後述する試験器３に接続されて
いる。 In Fig. 1, 1 is a light emitter, 2 is a light receiver, and 3 is a light emitter.
4 indicates a test device, and 4 indicates a fire receiver, and the projector 1 is equipped with an oscillation circuit 5 for lighting the light emitting element 7 in pulses to reduce average current consumption, and a current control circuit 6 for controlling the amount of light when lit. A control input of this current control circuit 6 is connected to a tester 3, which will be described later.
受光器２には受光素子８と増巾器９と、時定数
回路１０と比較回路１１とスイツチ回路（SCR）
１２とをそれぞれ備えている。なおこの時定数回
路１０はそれぞれ異なる２組の時定数回路から成
り、煙の侵入などにより受光量が減少したとき所
定の減少率以上で２つの時定数回路から差出力が
得られように成し、光学系の汚染などによる受光
量の減少では動作しないように設けられたもので
ある。 The light receiver 2 includes a light receiving element 8, an amplifier 9, a time constant circuit 10, a comparison circuit 11, and a switch circuit (SCR).
12, respectively. The time constant circuit 10 is composed of two different sets of time constant circuits, and is configured so that when the amount of received light decreases due to smoke intrusion, etc., a differential output can be obtained from the two time constant circuits at a predetermined rate of decrease or higher. , is provided so that it will not operate if the amount of received light decreases due to contamination of the optical system or the like.
試験器３には漸増電圧発生器１３と、試験スイ
ツチS1と動作表示灯１４と電圧計１５と接続用端
子とを備え、漸増電圧発生器１３は、抵抗r1とコ
ンデンサＣから成る時定数回路と、インピーダン
ス変換器としての電界効果トランジスタ（FET）
とから成り、このコンデンサＣの充電に伴う漸増
電圧を抵抗r2より試験スイツチS1を介して取り出
し、投光器１と外部に接続される電圧計１５とに
それぞれに印加される。２つの動作表示灯１４は
受光器２の動作とともに受光器２のSCR１２が
導通し、火災受信機４が作動したことを表示する
ためのものである。スイツチS2は受光器２の復旧
用スイツチであるが、受信機４で復旧することも
できる。 The tester 3 is equipped with a gradually increasing voltage generator 13, a test switch S1 , an operation indicator light 14, a voltmeter 15 , and a connection terminal. Circuits and field-effect transistors (FETs) as impedance converters
The gradually increasing voltage accompanying the charging of the capacitor C is taken out from the resistor r 2 via the test switch S 1 and applied to the projector 1 and the voltmeter 15 connected to the outside. The two operation indicator lights 14 are for indicating that the SCR 12 of the light receiver 2 is turned on as the light receiver 2 operates, and that the fire receiver 4 is activated. The switch S2 is a switch for restoring the light receiver 2, but the receiver 4 can also be used for restoration.
第２図は、この考案の光電式分離型感知器用試
験器の建物への設置例を示す。 FIG. 2 shows an example of how the photoelectric separation type sensor tester of this invention is installed in a building.
投光器１と受光器２とは天井面に所定の間隔を
置いて対向して配置され、試験器３はこれらと接
続して人の手の届く高さの壁面に設けられる。 A light projector 1 and a light receiver 2 are arranged facing each other on a ceiling surface with a predetermined interval, and a test device 3 is connected to these and installed on a wall surface at a height that a person can reach.
このような構成において、通常の火災監視時に
は投光器１よりデユーテイー比の小さいパルス光
が受光器に向けて投光されており、投・受光器間
に煙が侵入し、受光器２への光量が減少すると、
時定数回路に出力を生じその値が所定値以上にな
るとSCR１２が導通し、火災受信機４の継電器
Ｒを作動させ、図示しない警報器を鳴動させる。 In such a configuration, during normal fire monitoring, pulsed light with a smaller duty ratio than the emitter 1 is emitted toward the receiver, and smoke enters between the emitter and the receiver, reducing the amount of light to the receiver 2. When it decreases,
When an output is generated in the time constant circuit and its value exceeds a predetermined value, the SCR 12 becomes conductive, activating the relay R of the fire receiver 4, and causing an alarm (not shown) to sound.
次に保守点検あるいは作動試験を行うときにつ
いて以下に述べる。 Next, we will discuss below when performing maintenance inspections or operation tests.
まず、試験器３の試験スイツチS1を点線の位置
に操作し、漸増電圧発生器１３の出力を投光器１
の電流制御回路６に印加する。この漸増電圧発生
器１３の出力電圧は予め時間の経過に対してほぼ
直線的に変化して行くように設計しておくと良
い。このような漸増電圧が投光器１の電流制御回
路６に印加されると、発光素子７へ流れるパルス
電流は漸次低下し、恰も投・受光器間に煙が侵入
した状態を呈し、所定時間後受光器２のSCR１
２が導通し火災受信機４へ作動信号を発する。こ
のとき漸増電圧発生器１３の時定数回路r1，ｃ間
に設けられたトランジスタTrのベース電極が
SCR１２のアノードに接続されているため、直
ちにトランジスタTrはOFFとなり、コンデンサ
Ｃへの充電は停止される。したがつて受光器２の
動作と同時に漸増電圧発生器１３の漸増動作は停
止され、そのときの出力電圧はしばらく保持さ
れ、この電圧を電圧計で読み取り予め設定された
値と比較することによつて正常か異常かの判断が
でき、また動作表示灯１４により受光器２の動作
と共に火災受信機４が正常に作動したことが解
る。なおこの実施例においては漸増電圧発生器を
用いたが試験時発光素子７の電流が漸減する回路
構成であれば漸減電圧発生器であつても良い。 First, operate the test switch S 1 of the tester 3 to the position indicated by the dotted line, and transfer the output of the gradually increasing voltage generator 13 to the projector 1.
is applied to the current control circuit 6 of. It is preferable that the output voltage of the gradually increasing voltage generator 13 is designed in advance so that it changes approximately linearly with the passage of time. When such a gradually increasing voltage is applied to the current control circuit 6 of the emitter 1, the pulse current flowing to the light emitting element 7 gradually decreases, creating a state where smoke has entered between the emitter and the receiver, and the light is not received after a predetermined period of time. SCR1 of device 2
2 becomes conductive and issues an activation signal to the fire receiver 4. At this time, the base electrode of the transistor Tr provided between the time constant circuits r 1 and c of the gradually increasing voltage generator 13
Since it is connected to the anode of the SCR 12, the transistor Tr is immediately turned off and charging of the capacitor C is stopped. Therefore, the gradual increase operation of the gradual increase voltage generator 13 is stopped at the same time as the operation of the light receiver 2, and the output voltage at that time is held for a while, and this voltage is read with a voltmeter and compared with a preset value. It is possible to judge whether the condition is normal or abnormal, and the operation indicator light 14 indicates that the fire receiver 4 has operated normally along with the operation of the light receiver 2. Although a gradually increasing voltage generator is used in this embodiment, a gradually decreasing voltage generator may be used as long as the circuit has a circuit configuration in which the current of the light emitting element 7 is gradually decreased during testing.
［考案の効果］
この考案の光電式分離型感知器用試験器を用い
ると手の届く壁面において定期的な保守点検ある
いは動作試験を極めて容易に行い得るとともに特
に作動に至らしめる漸増または漸減電圧発生手段
によつて最初のスイツチ投入操作だけで極めて正
確に作動レベルを計測でき、さらに火災受信機も
含めた全ての機能の確認を行い得るなどの特徴を
有する。[Effects of the invention] By using the photoelectric separation type sensor tester of this invention, periodic maintenance inspections or operation tests can be carried out extremely easily on an accessible wall surface, and in particular, a means for generating a gradually increasing or gradually decreasing voltage leading to activation is provided. It has features such as being able to measure the operating level extremely accurately just by turning on the switch for the first time, and also being able to check all functions including the fire receiver.
第１図はこの考案の回路図、第２図は建物への
設置例を示す図である。
１……投光器、２……受光器、３……試験器、
１３……漸増電圧発生器、１４……動作表示灯、
１５……電圧計、S1……試験スイツチ。
FIG. 1 is a circuit diagram of this invention, and FIG. 2 is a diagram showing an example of installation in a building. 1... Emitter, 2... Light receiver, 3... Test device,
13... Gradual voltage generator, 14... Operation indicator light,
15...Voltmeter, S1 ...Test switch.
Claims (1)
置し、上記受光器は上記投光器からの光の減少が
所定以上の時に動作信号を出力して火災の煙を検
出する感知器に接続される光電式分離型感知器用
試験器において、 試験を開始する試験スイツチと、該試験スイツ
チの操作時に上記投光器の発光電流が漸次減少す
るように上記投光器に漸増または漸減する試験電
圧を印加し、上記受光器から出力される上記動作
信号に基づいて上記試験電圧の漸増または漸減動
作を停止して上記動作信号出力時の上記試験電圧
が電圧計で読み取れるようにした電圧発生器と、
上記受光器の上記動作信号に基づいて感知器の動
作状態を表示する動作表示灯とを備えたことを特
徴とする光電式分離型感知器用試験器。[Claims for Utility Model Registration] A light emitter and a light receiver are disposed facing each other at a predetermined distance, and the light receiver outputs an operation signal when the light from the light emitter decreases by a predetermined amount or more to suppress smoke from a fire. In the photoelectric separation type sensor tester connected to the sensor to be detected, there is a test switch that starts the test, and when the test switch is operated, the light emitting current of the light emitter is gradually increased or decreased so that the light emitting current of the light emitter is gradually decreased. Voltage generation that applies a test voltage and stops the gradual increase or decrease operation of the test voltage based on the operation signal output from the light receiver so that the test voltage when the operation signal is output can be read with a voltmeter. The vessel and
A photoelectric separation type tester for a sensor, comprising: an operation indicator light that displays the operating state of the sensor based on the operation signal of the light receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987020780U JPH0524205Y2 (en) | 1987-02-17 | 1987-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987020780U JPH0524205Y2 (en) | 1987-02-17 | 1987-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63128454U JPS63128454U (en) | 1988-08-23 |
| JPH0524205Y2 true JPH0524205Y2 (en) | 1993-06-21 |
Family
ID=30816606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987020780U Expired - Lifetime JPH0524205Y2 (en) | 1987-02-17 | 1987-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0524205Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6186466B2 (en) * | 2016-03-15 | 2017-08-23 | 能美防災株式会社 | Photoelectric separation type sensor and optical axis adjustment method for photoelectric separation type sensor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52152273A (en) * | 1976-06-11 | 1977-12-17 | Matsushita Electric Works Ltd | Action checking method of light dimming type smoke sensor |
| JPS582657B2 (en) * | 1974-11-18 | 1983-01-18 | カブシキガイシヤ オオヤマテツコウシヨ | Aburageshiyokuhinnosankaboushiseizouhouhou Oyobi Souchi |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS582657U (en) * | 1981-06-30 | 1983-01-08 | ニッタン株式会社 | Separate dimming type smoke detector |
-
1987
- 1987-02-17 JP JP1987020780U patent/JPH0524205Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS582657B2 (en) * | 1974-11-18 | 1983-01-18 | カブシキガイシヤ オオヤマテツコウシヨ | Aburageshiyokuhinnosankaboushiseizouhouhou Oyobi Souchi |
| JPS52152273A (en) * | 1976-06-11 | 1977-12-17 | Matsushita Electric Works Ltd | Action checking method of light dimming type smoke sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63128454U (en) | 1988-08-23 |
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