JPH03235824A - Method of controlling automatic faucet of city water - Google Patents
Method of controlling automatic faucet of city waterInfo
- Publication number
- JPH03235824A JPH03235824A JP3327490A JP3327490A JPH03235824A JP H03235824 A JPH03235824 A JP H03235824A JP 3327490 A JP3327490 A JP 3327490A JP 3327490 A JP3327490 A JP 3327490A JP H03235824 A JPH03235824 A JP H03235824A
- Authority
- JP
- Japan
- Prior art keywords
- faucet
- light
- water
- detection zone
- zone
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims description 15
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 208000019901 Anxiety disease Diseases 0.000 abstract 1
- 230000036506 anxiety Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 230000004379 myopia Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Domestic Plumbing Installations (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
この発明は水道蛇口の下方に手を翳すことによって自動
的に蛇口を開閉させる水道の自動蛇口の制御方法に間す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of controlling an automatic water faucet in which the faucet is automatically opened and closed by placing a hand under the faucet.
［従来の技術］
従来の水道の自動蛇口の制御方法は、蛇口の下方に手や
コツプなどを差し出すだけで、蛇口に対する手やコツプ
などの位置の遠近に拘わらず水が噴出するものであった
。[Prior Art] In the conventional automatic water faucet control method, simply by placing a hand or a tap under the faucet, water would spray out regardless of the distance of the hand or tap relative to the faucet. .
［発明が解決しようとする課題］
しかしながら、このように蛇口の下に手やコツプなどを
差し出せば、蛇口からの距離の大小に拘わらず水が噴出
したのでは、手やコツプなどが蛇口に近すぎると、水が
激しく四方に飛散し、衣服などを濡らしてしもうし、ま
た、蛇口の下方、非常に離れたところで水が出てもやは
り飛散が多く、衣服の裾などを濡らすという問題点があ
った。[Problem to be solved by the invention] However, if you put your hand or tap under the faucet, water will gush out regardless of the distance from the faucet. If the water is too close, the water will splash violently in all directions and wet clothes, etc.Also, even if the water comes out from a distance below the faucet, there will still be a lot of water splashing, and the hem of clothes will get wet. There was a point.
［発明の目的コ
本発明は、このような従来の方法における問題点に着目
してなされたもので、蛇口の下方において、水の飛び散
りの少ない、最も適切な特定の範囲に手やコツプなどを
差し出した時にのみ水の噴出を許し、不用意に蛇口に手
やコツプなどを近付けても水が飛散しない水道の自動蛇
口の制御方法を提供することを目的としている。[Purpose of the Invention] The present invention has been made by focusing on the problems in the conventional method, and is to place a hand or a tap in the most appropriate specific area below the faucet where there is less water splashing. To provide an automatic water faucet control method that allows water to spout only when the tap is held out and prevents water from scattering even if a hand or a tap is brought near the faucet carelessly.
［課題を解決するための手段］
上記目的を達成するためのこの発明の要旨とするところ
は、
水道の自動蛇口の制御方法において、
水の流出方向に投光する発光手段と、前記投光による反
射体からの反射光を受ける受光手段とを具備し、前記蛇
口より流出方向に対し第一の所定距離までの範囲を第一
の検出ゾーンとし、第一の所定距離から第二の所定距離
までの範囲を第二の検出ゾーンとし、第二の所定距離よ
り遠方を第三の検出ゾーンとし検出する測距手段を設け
、前記反射体が上記第二の検出ゾーンにあるときにのみ
蛇口を開口するようにしたことを特徴とする水道の、自
動蛇口の制御方法、に存する。[Means for Solving the Problems] The gist of the present invention for achieving the above object is that, in a method for controlling an automatic water faucet, there is provided a light emitting means for emitting light in a direction in which water flows out; and a light receiving means for receiving reflected light from the reflector, the range from the faucet to a first predetermined distance in the outflow direction is defined as a first detection zone, and from the first predetermined distance to a second predetermined distance. A distance measuring means is provided for detecting an area further than the second predetermined distance as a second detection zone, and a distance farther than the second predetermined distance as a third detection zone, and the faucet is opened only when the reflector is in the second detection zone. A method of controlling an automatic faucet for water supply, characterized in that:
［作用］
本発明の方法を実施した水道の自動蛇口の下方に手やコ
ツプなどの反射体を差し出し、その位置が蛇口の開口遠
隔界よりも離れた遠い位置［第三の検出ゾーンコでは、
蛇口は開口せず、水は出ない
また、手やコツプなどの反射体を差し出した位置が蛇口
の開口近眼界よりも蛇口に近い位置［第一の検出ゾーン
〕では、やはり蛇口は開口せず、水は出ない。[Operation] A reflector, such as a hand or a tap, is held out below the automatic water faucet in which the method of the present invention has been implemented, and the position thereof is at a far position away from the far field of the faucet opening [in the third detection zone,
The faucet will not open and water will not come out.Also, if the position where you hold out a reflective object such as your hand or tap is closer to the faucet than the faucet's opening near-sightedness [first detection zone], the faucet will still not open. , no water comes out.
従って、手やコツプなどの反射体を蛇口から少しずつ離
し上記第二の検出ゾーン内に反射体が位置すると蛇口は
開口して水が出るようになる。Therefore, when the reflector such as a hand or a tap is gradually removed from the faucet and the reflector is located within the second detection zone, the faucet opens and water comes out.
そして反射体をさらに蛇口から遠ざけ蛇口の開口遠隔界
〔第三の検出ゾーンコに達し、ここから以遠は蛇口は再
度閉口され、水の噴出は停止される。Then, the reflector is further moved away from the faucet and reaches the faucet's opening remote field (third detection zone), from which point the faucet is closed again and the water jetting is stopped.
［実施例］
第１図に本発明の方法を適用した水道の自動蛇口１０を
示す。[Example] Fig. 1 shows an automatic water faucet 10 to which the method of the present invention is applied.
自動蛇口１０には差し出された手などの反射体の蛇口か
らの距離を測定するための測距手段３５が設けられてい
る。The automatic faucet 10 is provided with distance measuring means 35 for measuring the distance from the faucet to a reflective object such as an outstretched hand.
測距手段３５は第４図に示すような蛇口制御装置２０の
一部を構成しており、第５図のような発光手段３６と一
対の発光素子Ｆ２、Ｆ２とから成る受光手段３７とから
成っている。The distance measuring means 35 constitutes a part of the faucet control device 20 as shown in FIG. 4, and is composed of a light emitting means 36 and a light receiving means 37 consisting of a pair of light emitting elements F2, F2 as shown in FIG. It has become.
ここで上記測距手段３５による反射体の距離測定の原理
と、この測距手段３５を含む蛇口制御装置２０の構成と
を第２図ないし第５図に基づいて説明する。Here, the principle of distance measurement of the reflector by the distance measuring means 35 and the configuration of the faucet control device 20 including the distance measuring means 35 will be explained based on FIGS. 2 to 5.
測距手段３５は第２図に示すように同一平面上に配設さ
れた発光手段３６と受光手段３７とから成っている。As shown in FIG. 2, the distance measuring means 35 consists of a light emitting means 36 and a light receiving means 37 arranged on the same plane.
発光手段３６は第５図に示すように、赤外用しＥＤと、
所定周期で発光用トリガーを出力するタイマ回路および
フリップフロップ回路より成る時間監視回路とから成っ
ている。As shown in FIG. 5, the light emitting means 36 includes an infrared ED;
It consists of a timer circuit that outputs a trigger for light emission at a predetermined period, and a time monitoring circuit consisting of a flip-flop circuit.
受光手段３７は第４図の＜１）に示すように、反射体の
距離に対応した電流Ｉｔ、Ｉｚを出力する一対の受光素
子Ｆ１、Ｆ２、ツェナーダイオードＤｘ、電流〜電圧変
換回路ＩＣ，、ＩＣｓ、直流成分を除去して距離信号成
分を取り出すコンデンサＣｌ−Ｃ２力ゝら成ってしする
。As shown in <1) in FIG. 4, the light receiving means 37 includes a pair of light receiving elements F1 and F2 that output currents It and Iz corresponding to the distance of the reflector, a Zener diode Dx, a current to voltage conversion circuit IC, . It consists of capacitors Cl-C2 which remove the DC component and take out the distance signal component.
蛇口制御装置２０は前記測距手段３５を含み第４図のよ
うに構成されている。The faucet control device 20 includes the distance measuring means 35 and is constructed as shown in FIG.
図中（ｎ）は電流〜電圧変換回路ＩＣ，、ＩＣ２の出力
電圧の差を取り、その値が所定値以上か以下かを判断す
る判断回路で、ＩＣ，の出力Ｖ、とＩＣ２の出力 ｖ２
の差をとる差動増幅器ＯＰ、と、差値■ヨを所定値と比
較する比較器ＣＯＭ、とからなっている。In the figure, (n) is a judgment circuit that takes the difference between the output voltages of the current-to-voltage conversion circuits IC, IC2 and determines whether that value is above or below a predetermined value.
and a comparator COM that compares the difference value (2) and (y) with a predetermined value.
（ＩＩＩ）は電流〜電圧変換回路ＩＣ，、ＩＣ，の出力
Ｖ１．Ｖ２の和が所定値以上か以下かを判断する判断回
路で、増幅器ＯＰ、と比較器ＣＯＭ ２とから成ってい
る。(III) is the output V1. of the current-to-voltage conversion circuit IC,, IC,. This is a judgment circuit that judges whether the sum of V2 is above or below a predetermined value, and consists of an amplifier OP and a comparator COM2.
そして、発光手段３６からレンズＴ１を通して投光され
た光は、第２図の■、■、■のように異なった位置に置
かれた反射体からの反射光によって、第３図のように近
い順からそれぞれａ、ｂ、Ｃのように異なったピント位
置、異なった光量で受光手段３７に入射することにより
、前記反射体の位置が判断される。The light emitted from the light emitting means 36 through the lens T1 is reflected from reflectors placed at different positions as shown in FIG. The position of the reflector is determined by making the light incident on the light receiving means 37 at different focus positions and different amounts of light, such as a, b, and C, in order.
すなわち、まず判断回路（Ｉ［［）によって受光素子Ｆ
１、Ｆ２の受光量が所定値より大が小かを見る。That is, first, the judgment circuit (I[[) determines whether the light receiving element F
1. Check whether the amount of light received at F2 is larger or smaller than a predetermined value.
そして受光量が所定値よりも小であるときには反射体が
第１図のＣ範囲であると判断され、ＣＰＵから蛇口の閉
口指令が発せられる。When the amount of light received is smaller than a predetermined value, it is determined that the reflector is within range C in FIG. 1, and the CPU issues a command to close the faucet.
判断回路（ｎ）によってはＩ 、＞ Ｉ ２であるか否
かが判断され、Ｉ 、＜ Ｉ 、であれば反射体が第１
図のＢゾーン、すなわち蛇口の開口範囲にありと判断さ
れるように設定されている。そして、ゾーンＣからゾー
ンＢに移行する途中では、蛇口の開口遠限界■を通過し
、このことを第３図の受光光量の分布図で見ると、線図
Ｃから両受光素子ＦＦ、への受光量が等量、すなわちＩ
、＝ Ｉ 、である線図すに移行している。The judgment circuit (n) judges whether I , > I 2 , and if I , < I , the reflector is the first
It is set so that it is determined that there is a zone B in the figure, that is, the opening range of the faucet. Then, on the way from zone C to zone B, the faucet's aperture far limit ■ is passed, and this can be seen in the distribution diagram of the amount of received light in Figure 3. From line C to both light receiving elements FF, The amount of light received is equal, that is, I
, = I.
次いでＩｔ＞Ｉｔのときには反射体は第１図のＡゾーン
にありと判断されるように設定されており蛇口には再び
閉口指令が発せられる。そしてゾーンＢから同じくＡに
移行する際には、第３図において線図すから線図ａに移
行し、所定差ＩＩ １２＝△Ｉ０において開口近限界
点■が設定されている。Next, when It>It, the reflector is determined to be in zone A in FIG. 1, and a close command is issued to the faucet again. When transitioning from zone B to zone A, the transition is made from the diagram in FIG.
上記各判断回路（ｎ）、（ＩＩＩ）の出力Ｖｏｕｔ＋、
ＶｏｕｔｚとＣＰＵにおける判断と制御内容をまとめる
と、
ゾーンＣゾーンＢ ゾーンＡ
Ｖｏｕｔ、 （Ｌ） Ｌ
ＨＶｏｕｔ２ Ｌ ＨＨとな
る。Output Vout+ of each of the above judgment circuits (n) and (III),
To summarize the judgment and control contents in Voutz and CPU, Zone C Zone B Zone A Vout, (L) L
HVout2 L HH.
ゾーンＣにおいて、反射光が受光素子Ｆ、、Ｆ２の何れ
にも入射しなくなり、その結果Ｉ 、＝ Ｉ 、となり
、比較器ＣＯＭ、で■８をツェナーダイオードＤ２のツ
ェナー電圧■２と比較するとＶ ｘ ” Ｖ−となり、
Ｖｏｕｔｌ が必ずしもゾーンＢの信号りと同一のＬと
はならず、不安定となる。そこで、比較器ＣＯＭ、の基
準電圧■、１を比較電圧Ｖ、よりも少し低い電圧に設定
しておき、反射光が返らない場合でもＶ ｏ ｕ ｔ
１が必ずＬとなるように成されている。In zone C, the reflected light no longer enters any of the light receiving elements F, F2, and as a result, I, = I, and when the comparator COM compares ■8 with the Zener voltage ■2 of the Zener diode D2, V x ” V-,
Voutl is not necessarily the same L as the signal in zone B, resulting in instability. Therefore, the reference voltage (1) of the comparator COM is set to a voltage slightly lower than the comparison voltage V, so that even if no reflected light is returned, V out
1 is always set to L.
上記のような構成において、人が蛇口１０の下方に手を
翳すとき、蛇口１０に近すぎて第１図のゾーンＡの範囲
内では水が出ない、そして、手が下方に移動して開口近
限界■に達すると蛇口１０は開口して水が噴出する。In the above configuration, when a person places his or her hand under the faucet 10, water does not come out within zone A in FIG. 1 because the person is too close to the faucet 10, and the hand moves downward. When the opening near limit (2) is reached, the faucet 10 opens and water gushes out.
手がゾーンＢの範囲内にある問はどこでも水は出るが、
開口遠限界■に達すると、蛇口は閉じられ、水の噴出は
停止する。Water will come out wherever your hand is within Zone B, but
When the far opening limit ■ is reached, the faucet is closed and the water spout stops.
なお、測距手段３５を蛇口制御装置２０全体と一体にし
ておいてもよいし、測距手段３５のみを蛇口１０に取り
付け、蛇口制御装置２０の他の構成部分を別置きにして
もよい。Note that the distance measuring means 35 may be integrated with the entire faucet control device 20, or only the distance measuring means 35 may be attached to the faucet 10, and the other components of the faucet control device 20 may be placed separately.
なお、本実施例では、開口遠限界を両受光素子における
受光量の等１点としたが、これを両受光素子の受光量の
第１の所定差Δ■１とし、開口近限界を同じく第２の所
定差ΔＩ２に設定して制御することも可能である。In this example, the far aperture limit is set to one point equal to the amount of light received by both light receiving elements, but this is set to the first predetermined difference Δ■1 between the amounts of light received by both light receiving elements, and the near aperture limit is set to the same point. It is also possible to perform control by setting a predetermined difference ΔI2 of 2.
［発明の効果コ
本発明に係る水道の自動蛇口の制御方法によれば、水の
流出方向に投光する発光手段と、前記投光による反射体
からの反射光を受ける受光手段とを具備し、前記蛇口よ
り流出方向に対し第一の所定距離までの範囲を第一の検
出ゾーンとし、第一の所定距離から第二の所定距離まで
の範囲を第二の検出ゾーンとし、第二の所定距離より遠
方を第三の検出ゾーンとし検出する測距手段を設け、前
記反射体が上記第二の検出ゾーンにあるときにのみ蛇口
を開口するようにしたことによって、蛇口から水の出る
範囲が、水の飛び散りの少ない、最も適切な特定の範囲
に限定され、不用意に蛇口に手を近付けても水が飛散し
て衣服を濡らすなどの不具合がなく、使用者に安心感を
与えることができる。[Effects of the Invention] According to the method for controlling an automatic water faucet according to the present invention, the method includes a light emitting means that emits light in the direction in which water flows out, and a light receiving means that receives light reflected from the reflector by the light emitting. , a range from the faucet to a first predetermined distance in the outflow direction is a first detection zone, a range from the first predetermined distance to a second predetermined distance is a second detection zone, and a second predetermined distance. By providing a distance measuring means that detects a distance farther than the distance as a third detection zone, and by opening the faucet only when the reflector is in the second detection zone, the range where water comes out from the faucet can be reduced. , with less water splashing, limited to the most appropriate specific range, and no problems such as water splashing and getting clothes wet even if you carelessly approach the faucet, giving the user a sense of security. can.
第１図〜第５図はこの発明の方法を適用した一実施例を
示しており、第１図は水道の自動蛇口の説明図、第２図
は測距方法の説明図、第３図は同じく受光素子における
光量分布図、第４図は蛇口制御装置の回路図、第５図は
同じく蛇口制御装置の発光手段である。
１０ 水道の自動蛇口
２０ 蛇口制御装置
３５ 測距手段
３６ 発光手段
３７
受光手段
■
■
Ｆ。
受光素子
蛇口の開口近眼界
蛇口の開口遠隔界
０
７
第４図
１３７−Figures 1 to 5 show an embodiment to which the method of the present invention is applied. Figure 1 is an illustration of an automatic water faucet, Figure 2 is an illustration of a distance measuring method, and Figure 3 is Similarly, FIG. 4 is a light quantity distribution diagram in the light receiving element, FIG. 4 is a circuit diagram of the faucet control device, and FIG. 5 is a light emitting means of the faucet control device. 10 Automatic water faucet 20 Faucet control device 35 Distance measuring means 36 Light emitting means 37 Light receiving means ■ ■ F. Light receiving element Faucet opening near field Faucet opening far field 0 7 Figure 4 137-
Claims (1)
射体からの反射光を受ける受光手段とを具備し、前記蛇
口より流出方向に対し第一の所定距離までの範囲を第一
の検出ゾーンとし、第一の所定距離から第二の所定距離
までの範囲を第二の検出ゾーンとし、第二の所定距離よ
り遠方を第三の検出ゾーンとし検出する測距手段を設け
、前記反射体が上記第二の検出ゾーンにあるときにのみ
蛇口を開口するようにしたことを特徴とする水道の自動
蛇口の制御方法。[Scope of Claim] A method for controlling an automatic water faucet, comprising a light emitting means for projecting light in a direction in which water flows out, and a light receiving means for receiving light reflected from a reflector by the light projection, the method comprising: The range up to a first predetermined distance with respect to the direction is the first detection zone, the range from the first predetermined distance to the second predetermined distance is the second detection zone, and the area farther than the second predetermined distance is the second detection zone. A method for controlling an automatic water faucet, characterized in that a distance measuring means for detecting a third detection zone is provided, and the faucet is opened only when the reflector is in the second detection zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3327490A JPH03235824A (en) | 1990-02-13 | 1990-02-13 | Method of controlling automatic faucet of city water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3327490A JPH03235824A (en) | 1990-02-13 | 1990-02-13 | Method of controlling automatic faucet of city water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03235824A true JPH03235824A (en) | 1991-10-21 |
Family
ID=12381956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3327490A Pending JPH03235824A (en) | 1990-02-13 | 1990-02-13 | Method of controlling automatic faucet of city water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03235824A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05161544A (en) * | 1991-12-19 | 1993-06-29 | Matsushita Electric Ind Co Ltd | Jar pot |
| JPH05287785A (en) * | 1992-04-03 | 1993-11-02 | Inax Corp | Automatic water stopper |
| US5829072A (en) * | 1995-01-14 | 1998-11-03 | Friedrich Grohe Ag | Automatic shower control |
| JP2009235734A (en) * | 2008-03-26 | 2009-10-15 | Toto Ltd | Kitchen faucet device |
| JP2009235731A (en) * | 2008-03-26 | 2009-10-15 | Toto Ltd | Hand wash unit |
| JP2010144471A (en) * | 2008-12-22 | 2010-07-01 | Toto Ltd | Faucet device |
| JP2012077472A (en) * | 2010-09-30 | 2012-04-19 | Lixil Corp | Automatic water supply device and distance measuring sensor |
| JP2014070381A (en) * | 2012-09-28 | 2014-04-21 | Lixil Corp | Human body detection sensor and automatic faucet |
| CN104061358A (en) * | 2013-11-12 | 2014-09-24 | 苏州天趣信息科技有限公司 | Water tap device capable of automatically flushing by infrared induction |
-
1990
- 1990-02-13 JP JP3327490A patent/JPH03235824A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05161544A (en) * | 1991-12-19 | 1993-06-29 | Matsushita Electric Ind Co Ltd | Jar pot |
| JPH05287785A (en) * | 1992-04-03 | 1993-11-02 | Inax Corp | Automatic water stopper |
| US5829072A (en) * | 1995-01-14 | 1998-11-03 | Friedrich Grohe Ag | Automatic shower control |
| JP2009235734A (en) * | 2008-03-26 | 2009-10-15 | Toto Ltd | Kitchen faucet device |
| JP2009235731A (en) * | 2008-03-26 | 2009-10-15 | Toto Ltd | Hand wash unit |
| JP2010144471A (en) * | 2008-12-22 | 2010-07-01 | Toto Ltd | Faucet device |
| JP2012077472A (en) * | 2010-09-30 | 2012-04-19 | Lixil Corp | Automatic water supply device and distance measuring sensor |
| JP2014070381A (en) * | 2012-09-28 | 2014-04-21 | Lixil Corp | Human body detection sensor and automatic faucet |
| CN104061358A (en) * | 2013-11-12 | 2014-09-24 | 苏州天趣信息科技有限公司 | Water tap device capable of automatically flushing by infrared induction |
| CN104061358B (en) * | 2013-11-12 | 2016-06-01 | 国家电网公司 | The faucet device of a kind of infrared induction auto-flushing |
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