JPH1137840A - Man detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect even a person being stationary and using a pyroelectric infrared sensor. SOLUTION: The pyroelectric infrared sensor 1 is provided with a shutter mechanism 8, which is arranged between a person and the sensor to detect not only a moving person but also a stationary person, and performs opening and closing operation for shading and causing incident light to pass, and a drive circuit 7 for repeating the closing and opening operation of the shutter 10. A detected man signal put in the sensor 1 is converted into a pulse signal by a comparator circuit 3. By using this as a trigger input, a multivibrator circuit 6 of retrigger operation is operated. And, constitution is so made that shutter drive may be started by this continuous output and stopped by the stop of the continuous output.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】［産業上の利用分野］電気の省エネとして
照明器具に近ずいた人を検知する人検知装置を用いて照
明器具を点灯して人の利用に供する装置等の人検知装置
の改良に関する。[0001] The present invention relates to an improvement of a human detection device such as a device for lighting a lighting fixture and using it for human use by using a human detection device for detecting a person approaching the lighting fixture as energy saving. .

【０００２】［従来の技術］移動する生体を検知して電
気的な出力をするものとして焦電型赤外線センサーが有
り、これを使用した電気の省エネ装置として照明器具と
組合せて人が近ずくとその人を検知して照明器具の電源
を一定時間通電にする装置が世の中に多く利用されてい
る。この焦電型素子は焦電効果を利用した赤外線検出素
子の為に赤外線の入射による素子結晶に温度変化が生じ
た時に、素子表面電荷が変化し電気信号として取出せる
素子で微分型検出素子です。よって安定な赤外線入射に
対しては反応せず、変化する入力に対して応答し従って
人の検知には適しています。そこでこの性質を使った焦
電型素子利用の照明器具の電気回路は人を検知した信号
をトリガーとしてタイマー回路を駆動する構成とし、こ
のタイマーの動作中（通常１０秒か２０秒程度を継続）
に照明の電源を通電とする事の連動動作を行う方式の人
検知照明装置が多く市販されている。又焦電素子の常温
動作と入射エネルギーが変化した時のみ信号が得られる
事を応用した非接触式温度測定用センサーとして人検知
センサーの十倍位高価だか検知対象より連続に出力信号
を得る為に焦電素子面に光チョッパー装置を組合せて光
チョッパーを常時作動させる方式の赤外線温度測定素子
も実用化されている。2. Description of the Related Art There is a pyroelectric infrared sensor which detects a moving living body and outputs an electric signal. A pyroelectric infrared sensor is used as an energy-saving device using the infrared sensor in combination with a lighting fixture. Devices that detect the person and turn on the power of the lighting equipment for a certain period of time are widely used in the world. This pyroelectric element is a differential detection element that is an infrared detection element that uses the pyroelectric effect, and when the temperature of the element crystal changes due to the incidence of infrared rays, the element surface charge changes and can be extracted as an electrical signal. . Therefore, it does not respond to stable infrared radiation, but responds to changing input and is therefore suitable for human detection. Therefore, an electric circuit of a lighting device using a pyroelectric element using this property is configured to drive a timer circuit by using a signal that detects a person as a trigger, and while the timer is operating (usually continues for about 10 seconds or 20 seconds).
There are many commercially available human detection lighting devices that perform an interlocking operation by energizing a lighting power supply. In addition, as a non-contact type temperature measurement sensor applying the normal temperature operation of the pyroelectric element and the fact that the signal is obtained only when the incident energy changes, it is about ten times as expensive as a human detection sensor or to obtain an output signal continuously from the detection target An infrared temperature measuring element of a type in which an optical chopper device is always operated by combining an optical chopper device with a pyroelectric element surface has also been put to practical use.

【０００３】［発明が解決しょうとする課題］従来技術
で説明した所の現在広く利用されている焦電型センサー
を応用した照明装置は検知距離についても２から３メー
トル程度以上の検知能力が有り安価なので夜間照明の自
動点灯消灯装置として有益な装置である、しかし点灯時
間が人の有無に関係ないタイマーで決定される為に人の
検出で点灯した照明が点灯中にその人の用が済めば問題
ないが１０とか２０秒間で用が済まない場合は再度人が
動いて点灯させる事が必要の不便がある。これを解決す
る為に十分な長時間のタイマーを用意すれば良いがそれ
では省エネ効果が薄れてしまう欠点がある。しかし夜間
照明の用途として、公共なものでもトイレや公衆電話ボ
ックスや自動販売機等の照明が有るがこれらは人が居る
場合のみ照明が必要であって特に自動販売機の個々の内
部の商品照明は人が自動販売機の近くに来てから点灯す
る事で十分に用が足りる訳である。従って自動販売機か
ら十数メートル離れた場所から見て自動販売機と解る通
常の全体照明を点灯しておき、人が自動販売機に近ずい
たら商品や操作に必要な照明を点灯する様にすれば自動
販売機の設置台数は多いので国内の電力事情の改善に大
きく寄与すると思われる。又トイレや公衆電話ボックス
の場合も人が近ずくか入るかしてから点灯するか照明を
明るくすれば良い訳である。しかし現状の人検知センサ
ーを応用した照明装置は人が近ずいて点灯しても人の動
きが静止するとある時間立つと消灯するので引続き照明
が必要なら人は再度大きく動いて点灯させる等の欠点が
ある為に先に説明したトイレや公衆電話ボックスや自動
販売機等には用いられていないのが現状である。[Problems to be Solved by the Invention] A lighting apparatus to which a pyroelectric sensor widely used at present as described in the prior art is applied has a detection capability of about 2 to 3 meters or more in detection distance. Because it is inexpensive, it is a useful device as an automatic lighting device for night lighting.However, since the lighting time is determined by a timer irrespective of the presence or absence of a person, the use of that person is completed while the lighting lit by detection of a person is on There is no inconvenience, but if the use is not completed in 10 or 20 seconds, it is necessary to move the person again to turn on the light. To solve this problem, it is sufficient to prepare a timer for a sufficiently long time, but this has a disadvantage that the energy saving effect is reduced. However, for night lighting applications, there are public lighting such as toilets, public telephone booths, vending machines, etc. These need to be illuminated only when people are present, and especially the lighting inside individual vending machines. This means that turning on the light after a person comes near the vending machine is sufficient. Therefore, turn on the general lighting that is understood as a vending machine when viewed from a place several ten meters away from the vending machine, and turn on the lighting necessary for products and operations when a person approaches the vending machine If so, the number of vending machines installed would be large, which would greatly contribute to improving the domestic power situation. Also, in the case of a restroom or a public telephone booth, it is only necessary to turn on the light or turn on the lighting after a person approaches or enters. However, the current lighting system that applies a human detection sensor turns off the light when a person stops moving and stands still for a certain period of time even if the person is approaching and turns on. Because of this, it is currently not used in the toilets, public telephone booths, vending machines, and the like described above.

【０００４】［課題を解決する為の手段］そこで人の動
きでも照明が点灯し且つその人検出装置付き照明装置の
検知範囲内に人が静止状態で居ても点灯を続ける事の出
来る装置が有れば、トイレや公衆電話ボックスや自動販
売機等に取付けて確実に電気の省エネを実現出来る。従
って本発明は安価な焦電型赤外線センサーを使って人の
動きでも人の静止状態でも人が居る限り人を検知出来る
人検知装置を実現して、照明を点灯し続ける事の出来る
装置を提供する事にある。その為にまず人の動きを検知
してから開閉動作を開始するシャッターを人と焦電素子
間に設けて、以後人が静止状態にある時はシャッターの
開閉動作で素子固有の変化分検知動作をさせて人の検知
を継続し、人が居なくなったらシャッター動作を停止し
て人の検知の待機状態になる動作手段を付加した人検知
装置であり、これを使用して人が居て静止していても照
明を点灯し続ける装置を提供する事が出来る。[Means for Solving the Problems] There is a device which can turn on the illumination even when a person moves, and can keep the illumination on even when the person is stationary within the detection range of the illumination device with the person detection device. If there is, it can be reliably installed in a toilet, a public telephone booth, a vending machine, etc., and energy can be saved. Therefore, the present invention provides a human detection device that can detect a person using a low-cost pyroelectric infrared sensor as long as the person is in motion or in a stationary state, and provides a device that can keep the lighting on. To do. For this purpose, a shutter that detects the movement of the person and then starts the opening and closing operation is provided between the person and the pyroelectric element, and when the person is in a stationary state, the opening and closing operation of the shutter detects the change specific to the element. This is a human detection device with an additional operation means to continue the detection of a person and stop the shutter operation when the person is no longer present and enter a standby state for the detection of a person. It is possible to provide a device that keeps the lighting on even when the lighting is performed.

【０００５】［作用］本発明の人検知装置は人の動きを
検知してから動作を開始するシャッターを人と焦電素子
間に設けて、以後人が静止状態にあってもシャッターの
動作で素子固有の変化分検知動作をさせ人の検知が継続
出来、人が居なくなったらシャッター動作を停止し人の
検知の待機状態になる動作手段を持つ自身も省エネ機構
を持った装置である。そして現在の電力需要の大部分を
占める照明装置は数が多いので不要照明を減らす事で省
エネ出来る為にもっと多くの人が、人の検知による照明
の自動点灯消灯装置を使用して人が居ない場所での不要
照明を消灯するか、人が来たら点灯し居なくなったら消
灯してその点灯時間を減らすか又は人が来たら照明を明
るくする様にすれば確実に省エネ作用効果が期待出来る
訳である。[Operation] The human detection device of the present invention is provided with a shutter between the person and the pyroelectric element, which starts operation after detecting the movement of the person. The device itself has an energy saving mechanism that has an operation means for detecting a change specific to the element and continuing the detection of a person, and stopping the shutter operation when no one is present to enter a standby state for the detection of a person. And since there are so many lighting devices that account for the majority of current power demand, reducing the unnecessary lighting can save energy, so more people are using the automatic lighting on / off device that detects people. If you turn off unnecessary lights in places where there is no light, turn off lights when people come and turn them off and reduce the lighting time, or make the lights brighter when people come, you can definitely expect an energy saving effect It is a translation.

【０００６】［実施例］図１に本発明の人検知装置を照
明装置へ応用した実施例のブロック図を示しこれに基ず
き説明する。図の１は焦電型赤外線センサーで通常市販
されているもので太陽光や震動に強く外気温の変動にも
強い焦電素子をデュアル型とした素子が使い易い、そし
て人の動きを検知して電気信号に変換しオペアンプ等で
構成する２の交流増幅回路で増幅し信号の＋と−に対応
したやはりオペアンプ等で構成する３のウインドコンパ
レータを設けて設定したしきい値（ノイズ以上）以上の
信号が来たらデジタル信号回路で扱う”１”信号に変換
する、そしてこの信号をトリガー入力としてリトリガー
動作が可能のデジタルＩＣで構成するの６のマルチバイ
ブレータ回路に入力しこの出力は５のゲート回路に入力
する。尚リトリガー動作のマルチバイブレータ回路とは
該回路で予め設定して発生する出力信号の継続時間幅以
内にトリガー入力があると再度出力を発生させる為に出
力信号の継続時間幅以内に次々にトリガー入力があると
出力信号はあたかも継続発生する方式のマルチバイブレ
ータ回路であり市販のＩＣの型名４０４７等が使用出来
る。次に後述の照明やシャッターを駆動する４の電源を
停止する為の５のゲート回路（詳細は図示無いが市販の
デジタルＩＣの多入力型のＮＡＮＤゲート回路等）とゲ
ート回路の出力で駆動する図示無いがトランジスタのバ
ッファー回路で駆動するリレー接点で電源の入り切りす
る７のシャッター駆動制御回路の構成で６のマルチバイ
ブレータ回路の出力が継続発生している間中、５のゲー
ト回路は開路となり次段の７のシャッター駆動制御回路
と９の照明回路の駆動回路に信号を送ってそれぞれを駆
動する構成とする。この時の５のゲート回路には図示無
いが更にもう一本のゲート入力を設けてこれに昼間の動
作を阻止するＣＤＳ（光抵抗変化素子）で明るさを検知
し明るさを設定出来るコンパレータ回路で比較して昼の
動作禁止用ゲート信号を発生させて５のゲート回路を閉
路とする様に構成しても良い。次に１の焦電型赤外線セ
ンサーと人との間に設けて赤外線の閉止と通過を制御す
るシャッター機構の詳細は図３、図４で後述するが８の
シャッター機構は５のゲート回路が閉路となったら１１
のフォトインタラプターを目とした１２の位置検出回路
とで１０のシャッターの全開を検知して７のシャッター
駆動制御回路で電源を停止として１０のシャッターをそ
の位置で停止させる様に構成する。またこの時９の照明
回路の電源は１０のシャッター位置に無関係に５のゲー
ト回路が開路の時のみ通電となる様に構成する。以上の
構成によって１の焦電型赤外線センサーに人が居なくな
り人からの赤外線入射が無くなると６のマルチバイブレ
ータ回路へのトリガー入力が無くなりマルチバイブレー
タの設定時間後に出力信号が”０”となり、５のゲート
回路を閉路として照明回路の電源を停止とし、７のシャ
ッター駆動制御回路にも停止を伝えるが１１のフォトイ
ンタラプタが１０のシャッターを全開にまで開けた事を
検知して１２の位置検知回路よりその認知信号を７のシ
ャッター駆動制御回路に与えるまで８のシャッター機構
を動かしそして該認知信号で１０のシヤッターを停止さ
せて次の人の検知の待機状態になる様に構成する訳であ
る。又この５のゲート回路の閉路後に図示無いが更に別
のタイマー回路を用意して作動させて照明の点灯を或程
度延長継続出来る様にすれば更に便利に使用する事が出
来る。一方図２に従来技術の人検知センサーを照明装置
へ応用した市販のブロック図を示し本発明との違いを説
明する。図の１は焦電型赤外線センサー、２は交流増幅
回路で３はウインドコンパレータでここ迄は図１で説明
した本発明と同一構成が多い。そして１の焦電型赤外線
センサーに人の赤外線入射信号があり３のウインドコン
パレータに設けて設定したしきい値以上の信号が来たら
デジタル信号回路で扱う”１”信号を出力する、そして
この信号をトリガー入力として１５のタイマー回路を駆
動して既に説明した所の通常１０から２０秒程度継続す
る”１”信号を発生させ５のゲート回路に入力して５の
ゲート回路を開路とし９の照明回路に電源を供給しタイ
マーの作動時間だけ点灯させる構成となっている。従っ
てこの方式は１の焦電型赤外線センサーで人を検知して
も以後人が動かぬ限り一回切りの照明の点灯で終わって
しまうので寝室等の照明で寝れば必要無い補助照明装置
等に適する訳である。次に本発明の入射変化しか検出出
来ない１の焦電型赤外線センサーに入る人の赤外線入射
を一時カットして人が静止状態にあっても新たな人検出
を可能とする８のシャッター機構について説明する。こ
れは既に説明済みの測定器に用いる目的で検知対象より
連続に出力信号を得る為に焦電素子面に高精度の光チョ
ッパーを組込み常時作動させる方式の赤外線温度測定素
子と考え方は似ているが本発明はチョッパーに相当する
シャッターの駆動は極端に言えば通電のＯＮ−ＯＦＦ動
作的で良いのでその設計も動作もかなりラフなもので事
足りる利点がある。図３に図１に用いる本発明のシャッ
ター機構の回転円盤方式を示し説明する。１の焦電型赤
外線センサーの前に通常赤外線を集光する１４のフレネ
ルレンズを設ける、そして円盤の一部を１４のフレネル
レンズの大きさ程度に切り欠いた２１の円盤シャッター
を減速ギァー付きの２０のモーター軸に取付けこの２２
の支点が１ｒｐｍ程度で回転する様に２０のモーターを
駆動する構成として図１の７のシャッター駆動制御回路
と８のシャッター機構とし５のゲート回路の開路の時に
図３の２０のモーターを駆動して２１の円盤シャッター
を回転動作させる訳である。以上の構成で１の焦電型赤
外線センサーに入る人からの赤外線を定周期で閉止し又
通過させる動作を行わせる事が出来る。またこの時のモ
ーターの回転方向は人の検知の待機状態で１４のフレネ
ルレンズに集光出来る様に２１の円盤シャッターの切り
欠いた部分即ちシャッターを全開にして２０のモーター
を停止させる位置を検知する１１のフォトインタラプタ
の取付け位置で定まり図では矢印方向に回して図１で説
明した様に人が居なくなったらシャッターを全開で停止
する様に構成する訳である。次に図４に本発明の特許請
求項１に用いる別なシャッター機構の実施例として振子
方式を使用したシャッター構成例を示し説明する。１の
焦電型赤外線センサーの前に１４のフレネルレンズが設
けられ、そして１４のフレネルレンズの大きさが隠せる
程度の面を持つ図の様な２６の振子シャッターを２５の
支点保持部で支持された２２の支点に取付けて常時２８
のスプリングで矢印ｂの方向に引張り２６の振子シャッ
ターを図の様に全開に保つ様に構成し、２７のプランジ
ャーリレーに通電して矢印ａ方向に引張る事によって２
２を支点として２６の振子シャッターを１４のフレネル
レンズを隠す位置迄回転させシャッター全閉とし２７の
プランジャーリレーの通電を停止にすれば２８のスプリ
ングに引張られてシャッターが全開に復帰する構成とす
る訳である。そしてこの構成のシャッター機構の２７の
へのプランジャーリレーに通電する通電と停止のサイク
ルは図１の５のゲート回路で制御する７のシャッター駆
動制御回路に図示して無いがデジタルＩＣによるマルチ
バイブレータ等の発振回路を用意し１Ｈｚ程度で発振さ
せてその信号が例えば”１”の時に図示無いがトランジ
スタバッファー等を通して２７のプランジャーリレーに
通電する様に構成し、５のゲート回路の開路で該発振回
路を動作させて２７のプランジャーリレーへ通電と通電
停止を繰返し、５のゲート回路の閉路で該発振回路動作
を停止し２７のプランジャーリレーへの通電を停止とし
振り子シャッターを全開まで２８のスプリングで引張っ
て停止する様に構成する事で図３の円盤方式のシャッタ
ーと全く同様に使用する事が出来る。又この場合自己復
帰型なので円盤シャッター方式の様な停止位置検出制御
機構は不要となる。また２８のスプリングの代わりに重
りで引張る構造の構成にしても良い。尚シャッターの開
閉サイクルの速度は両方式のシャッター共に焦電型赤外
線センサーの検出感度が落ちない程度の速度でシャッタ
ーを開閉する速度に選択すれば良い。またシャッター機
構は上記に限定する事は無くカメラのシャッターやバイ
モフル震動子利用のシャッターや液晶シャッター等が使
用出来る。[Embodiment] FIG. 1 is a block diagram showing an embodiment in which the human detection device of the present invention is applied to a lighting device, and the explanation will be given based on the block diagram. Figure 1 shows a pyroelectric infrared sensor that is usually on the market. A dual pyroelectric element that is resistant to sunlight and vibration and resistant to fluctuations in outside temperature is easy to use, and detects human movement. The threshold value (above noise) is set by providing three window comparators which are also formed by operational amplifiers etc. corresponding to + and-of the signals and are amplified by two AC amplifier circuits composed of operational amplifiers. When this signal arrives, it is converted into a "1" signal handled by a digital signal circuit, and this signal is used as a trigger input to a multivibrator circuit 6 composed of a digital IC capable of retrigger operation. Input to the circuit. Note that the re-trigger operation multivibrator circuit is a trigger input within the duration of the output signal in order to generate an output again if a trigger input occurs within the duration of the output signal generated in advance by the circuit. In this case, the output signal is a multivibrator circuit of a type that continuously generates signals, and a commercially available IC model name 4047 or the like can be used. Next, it is driven by an output of a gate circuit (not shown in detail but a multi-input NAND gate circuit of a commercially available digital IC, etc.) and an output of the gate circuit. Although not shown, the power supply is turned on and off by a relay contact driven by a transistor buffer circuit. While the output of the multivibrator circuit 6 is continuously generated by the configuration of the shutter drive control circuit 7, the gate circuit 5 is opened and the next circuit is opened. Signals are sent to the shutter drive control circuit of stage 7 and the drive circuit of the illumination circuit 9 to drive each of them. At this time, a gate circuit (not shown) is provided with another gate input (not shown), and a comparator circuit capable of detecting brightness with a CDS (light resistance change element) for preventing daytime operation and setting the brightness. As a comparison, a gate signal for daytime operation prohibition may be generated to close the gate circuit 5. Next, details of a shutter mechanism provided between the pyroelectric infrared sensor and the person to control the closing and passage of infrared rays will be described later with reference to FIGS. 3 and 4, but in the shutter mechanism of 8, the gate circuit of 5 is closed. Becomes 11
The 12 shutters are used to detect the full opening of the 10 shutters, the 7 shutter drive control circuit stops the power supply, and the 10 shutters are stopped at that position. At this time, the power supply of the illumination circuit 9 is configured to be energized only when the gate circuit 5 is open, regardless of the shutter position 10. With the above configuration, when no person is present in the pyroelectric infrared sensor and no infrared light is incident from the person, the trigger input to the multivibrator circuit is lost and the output signal becomes "0" after the set time of the multivibrator. The power supply of the lighting circuit is stopped by closing the gate circuit, and the stop is also transmitted to the shutter drive control circuit 7. However, it is detected that the photointerrupter 11 has opened the shutter 10 fully and the position detection circuit 12 has been detected. The shutter mechanism (8) is operated until the recognition signal is supplied to the shutter drive control circuit (7), and the shutter (10) is stopped by the recognition signal so as to be in a standby state for detection of the next person. Further, although not shown, a further timer circuit (not shown) is prepared and operated after the closing of the gate circuit 5 so that the lighting can be continued for a certain length of time, so that it can be used more conveniently. On the other hand, FIG. 2 shows a commercially available block diagram in which a conventional human detection sensor is applied to a lighting device, and a difference from the present invention will be described. 1 is a pyroelectric infrared sensor, 2 is an AC amplifying circuit, and 3 is a window comparator. In many cases, the configuration is the same as that of the present invention described with reference to FIG. When a pyroelectric infrared sensor receives a human infrared incident signal and a signal exceeding a threshold value provided in the window comparator comes, a "1" signal to be handled by a digital signal circuit is output. Is used as a trigger input to drive 15 timer circuits to generate a "1" signal which continues for about 10 to 20 seconds as described above, and inputs the signal to the gate circuit of 5 to open the gate circuit of 5 and illuminate 9 The power is supplied to the circuit and the circuit is turned on for the operating time of the timer. Therefore, even if a person detects a person with a pyroelectric infrared sensor, it will end up with one-time lighting unless the person moves thereafter. It is suitable. Next, regarding the shutter mechanism of the present invention, it is possible to temporarily cut off the infrared incident of a person entering the pyroelectric infrared sensor that can detect only the incident change and to detect a new person even when the person is stationary. explain. This is similar to the infrared temperature measuring element of the system that incorporates a high-precision optical chopper on the surface of the pyroelectric element and constantly operates to obtain an output signal continuously from the detection target for the purpose of using the measuring device already described. However, according to the present invention, the driving of the shutter corresponding to the chopper can be performed by ON-OFF operation of energization in an extreme case, so that there is an advantage that the design and operation are quite rough. FIG. 3 shows and describes a rotating disk type of the shutter mechanism of the present invention used in FIG. In front of one pyroelectric type infrared sensor, 14 Fresnel lenses that normally focus infrared rays are provided, and 21 disk shutters with a part of the disk cut out to the size of 14 Fresnel lenses are equipped with a deceleration gear. Attach to 20 motor shafts
The motor 20 is driven so that the fulcrum rotates at about 1 rpm. The shutter drive control circuit 7 and the shutter mechanism 8 in FIG. 1 are used to drive the motor 20 in FIG. That is, the 21 disk shutters are rotated. With the above configuration, it is possible to perform an operation of closing and passing infrared rays from a person entering one pyroelectric infrared sensor at a constant period. At this time, the direction of rotation of the motor detects the notched portion of the 21 disk shutter, that is, the position where the 20 motor is stopped by fully opening the shutter so that the light can be focused on the 14 Fresnel lenses in the standby state of human detection. In the figure, the shutter is turned in the direction of the arrow to turn the shutter fully open when no one is present as described with reference to FIG. Next, FIG. 4 shows an example of a shutter structure using a pendulum system as another embodiment of the shutter mechanism used in claim 1 of the present invention. Fourteen Fresnel lenses are provided in front of the one pyroelectric infrared sensor, and twenty-six pendulum shutters as shown in the figure having a surface enough to hide the size of the fourteen Fresnel lenses are supported by twenty-five fulcrum holders. 28 at all times
By pulling in the direction of arrow b with a spring, the pendulum shutter 26 is kept fully open as shown in the figure, and a current is supplied to the plunger relay 27 to pull in the direction of arrow a.
When the pendulum shutter 26 is rotated to the position where the Fresnel lens 14 is hidden with the fulcrum 2 as the fulcrum, the shutter is fully closed, and the energization of the plunger relay 27 is stopped. That's why. The cycle of energizing and stopping the energization of the plunger relay to the shutter mechanism 27 of this configuration is not shown in the shutter drive control circuit 7 controlled by the gate circuit 5 in FIG. An oscillation circuit such as the above is prepared, and oscillates at about 1 Hz. When the signal is, for example, "1", it is configured to energize 27 plunger relays through a transistor buffer or the like (not shown). The oscillating circuit is operated to repeat energizing and stopping the energization of the 27 plunger relays. The operation of the oscillating circuit is stopped when the gate circuit of 5 is closed, the energizing of the plunger relay is stopped, and the pendulum shutter is fully opened. It can be used in exactly the same way as the disk-type shutter shown in Fig. That. In this case, since it is a self-return type, a stop position detection control mechanism such as a disk shutter type is not required. Further, a structure of pulling with a weight instead of the spring 28 may be employed. Note that the shutter opening / closing cycle speed may be selected so that both types of shutters open and close the shutter at such a speed that the detection sensitivity of the pyroelectric infrared sensor does not decrease. Further, the shutter mechanism is not limited to the above, and a shutter of a camera, a shutter using a bimodal vibrator, a liquid crystal shutter, or the like can be used.

【０００７】［発明の効果］本発明の人検知装置を用い
る事によって今まで夜間付けっ放しが当たり前とされて
いたトイレや公衆電話ボックスや自動販売機等に取付け
る事によりまず人の接近で照明を点灯し且つその人検出
照明装置の人の検知範囲内に人が静止状態で居ても点灯
を続け、人がその場所から離れれば照明を消灯する事の
出来る照明装置になり自然に省エネが実現出来る。また
人検知装置自身の動作も人を検知してから人の連続検知
するシャッターを動作させ、人が居なくなったらシャッ
ター動作を停止して人検知の待機状態に構成出来るので
装置自身も省エネ型に構成出来る。また人の検知センサ
ーとしての他の応用としては高齢者の増加に伴う一人暮
らしの人の家庭に於ける電話等による遠隔室内生体確認
のセンサーとしても有用である。現在市販の変化分検知
の人検知センサーだと例えば人が倒れた場合その時は動
きとして検知するが以後は動きがなければ検知出来ない
ので倒れた時の異変を感じ取る事は困難だが、本発明の
人検知装置で有れば人の動きから静止状態になっても即
ち倒れた状態でも検知可能なので逆に動きの無い事から
異変と感じ取る事が出来る訳である。この様に本発明の
人検知装置は照明以外の応用にも有用であって今後の高
齢者の増加に伴う一人暮らしの老人の遠隔健康確認の人
検知装置センサーとしても利用出来る訳である。[Effect of the Invention] By using the human detection device of the present invention, it is first installed in a toilet, a public telephone box, a vending machine, or the like, which has been taken for granted at night. The lighting device turns on and continues to light even when a person is in a stationary state within the human detection range of the person detection lighting device, and the lighting device can turn off the lighting when the person leaves the place, which naturally saves energy. Can be realized. In addition, the operation of the human detection device itself also operates a shutter that detects people continuously and then operates a shutter that detects continuous people, stops the shutter operation when there is no more people, and can be configured to be in a standby state for human detection, so the device itself is also energy saving type Can be configured. As another application as a human detection sensor, it is also useful as a sensor for remote living body confirmation by telephone or the like in a home of a single person living with an increase in the elderly. If it is a human detection sensor that detects a change in the market now, for example, if a person falls, it will be detected as movement at that time, but it will not be possible to detect if there is no movement, so it is difficult to sense the anomaly when falling down, but the present invention If a human detection device is used, even when a person comes to a stationary state from motion, that is, even when the user falls down, detection can be performed. As described above, the human detection device of the present invention is useful for applications other than lighting, and can be used as a human detection device sensor for remote health check of elderly people living alone as the number of elderly people increases in the future.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の人検知装置を照明装置へ応用した実施
例のブロック図を示す。FIG. 1 is a block diagram showing an embodiment in which a human detection device of the present invention is applied to a lighting device.

【図２】従来技術の人検知センサーを照明装置へ応用し
た例のブロック図を示す。FIG. 2 is a block diagram showing an example in which a conventional human detection sensor is applied to a lighting device.

【図３】本発明の人検知装置の赤外線のシャッターとし
て回転円盤方式を使用した実施例の構成を示す。FIG. 3 shows a configuration of an embodiment using a rotating disk system as an infrared shutter of the human detection device of the present invention.

【図４】本発明の人検知装置の別な赤外線のシャッター
の実施例として振子方式を使用した構成例を示す。FIG. 4 shows a configuration example using a pendulum system as another embodiment of the infrared shutter of the human detection device of the present invention.

【符号の説明】[Explanation of symbols]

１ 焦電型赤外線センサー ２ 交流増幅回路 ３ ウインドコンパレータ ４ 電源 ５ ゲート回路 ６ マルチバイブレータ回路 ７ シャッター駆動制御回路 ８ シャッター機構 ９ 照明回路 １０ シャッター １１ フォトインタラプター １２ 位置検知回路 １４ フレネルレンズ １５ タイマー回路 ２０ モーター ２１ 円盤シャッター ２２ 支点 ２５ 支点保持部 ２６ 振子シャッター ２７ プランジャーリレー ２８ スプリング DESCRIPTION OF SYMBOLS 1 Pyroelectric infrared sensor 2 AC amplifier circuit 3 Window comparator 4 Power supply 5 Gate circuit 6 Multivibrator circuit 7 Shutter drive control circuit 8 Shutter mechanism 9 Lighting circuit 10 Shutter 11 Photointerrupter 12 Position detection circuit 14 Fresnel lens 15 Timer circuit 20 Motor 21 disk shutter 22 fulcrum 25 fulcrum holder 26 pendulum shutter 27 plunger relay 28 spring

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 人の発する赤外線を検知する焦電型赤外
線センサーを用いた人検知装置に於いて、該焦電型赤外
線センサーで得た信号を増幅する手段と該増幅された信
号と予め定めたしきい値を比較しデジタル信号に変換す
るコンパレータ回路手段と該増幅された信号が該しきい
値を越えた時のコンパレータ出力をトリガー入力とする
リトリガー動作のマルチバイブレータ回路手段と該マル
チバイブレーター回路の出力信号が継続発生中はゲート
を開路とするゲート回路手段と該焦電型赤外線センサー
と人との間に設けて人の発する赤外線を閉止し又は通過
させるシャッター機構手段と該シャッターの赤外線の閉
止と通過の動作を定周期で繰返すシャッター駆動手段と
該シャッターの駆動を該ゲート回路の開路でスタートし
該ゲート回路の閉路で該シヤッターの駆動を停止させる
手段と、該シャッターを停止する時に人の発する赤外線
を通過させる位置に停止させるシャッター駆動制御手段
とを具備してなる人検知装置。In a human detection device using a pyroelectric infrared sensor for detecting infrared rays emitted by a person, means for amplifying a signal obtained by the pyroelectric infrared sensor, and the amplified signal and a predetermined signal are defined. Comparator circuit means for comparing the threshold value and converting the converted signal into a digital signal, multivibrator circuit means for retrigger operation using a comparator output as a trigger input when the amplified signal exceeds the threshold value, and the multivibrator circuit During the continuous generation of the output signal, gate circuit means for opening the gate, shutter mechanism means provided between the pyroelectric infrared sensor and the person to close or pass infrared light emitted by the person, and infrared light of the shutter Shutter driving means for repeating the closing and passing operations at a constant period, and driving of the shutter is started at an open circuit of the gate circuit to close the gate circuit And a shutter drive control means for stopping the shutter at a position where infrared rays emitted by a person pass when the shutter is stopped. 【請求項２】 請求項１の人検知装置を用いて点灯する
照明装置において、人を検知したら照明を点灯又は追加
照明を点灯し、その人が該人検知装置の検知範囲内に居
ればそれらの照明を点灯し続け、その人が該人検知装置
の検知範囲外になったら全照明または追加照明を消灯す
る事を特徴とする照明装置。2. A lighting device for lighting using the human detecting device according to claim 1, wherein when a human is detected, the lighting is turned on or the additional lighting is turned on, and if the human is within the detection range of the human detecting device, the lighting is turned on. A lighting device characterized in that all lighting or additional lighting is turned off when the person is out of the detection range of the person detecting device.