JP3586922B2

JP3586922B2 - Lighting control system

Info

Publication number: JP3586922B2
Application number: JP07526795A
Authority: JP
Inventors: 泰子山本; 慎司坂本; 亮森本
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1995-03-31
Filing date: 1995-03-31
Publication date: 2004-11-10
Anticipated expiration: 2019-11-10
Also published as: JPH08273838A

Description

【０００１】
【産業上の利用分野】
本発明は、複数の人体検知機能付照明装置を備えた照明制御システムに関するものである。
【０００２】
【従来の技術】
本発明は、周囲の明るさを判定すると共に、人体の有無を検知して照明負荷の自動調光制御を行う照明制御システムに関するものである。人体の有無を検知する手段としては、人の動きによる温度変化を検知する熱線センサを用いる方法が一般的であり、照明負荷の調光制御手段としては、トライアックを用いた位相制御で照明負荷の調光を行うのが一般的である。このような照明制御システムの一例としては、例えば、図６に示すものがある。図６は照明制御システムの構成を示す構成図で、図に示す照明制御システムは、人体が発する熱線を検知して人体検知信号を出力する複数の人体検知器１（子器）と、それらの人体検知器１と接続される、照度センサ（図示省略）を内蔵した親器２と、親器２に接続される複数の照明３と、交流電源４とで構成されている。
【０００３】
図６に示した照明制御システムの照明制御動作の一例を図７のフローチャートに示す。図７に示すように、照明制御システムは、親器２が内蔵する照度センサで周囲の明るさを判定して、周囲が明るい場合は全ての照明３を消灯状態とし、周囲が暗くなると全ての照明３を低輝度（約１５〜２０％）点灯させ、いすれかの人体検知器１が人体を検知して人体検知信号を出力すると、親器２がその人体検知信号を受信し、所定の設定時間の間、全ての照明３を１００％点灯させた後、全ての照明３を低輝度点灯の状態に戻し、周囲が明るくなった場合には、全ての照明３を消灯させるように構成されている。
【０００４】
【発明が解決しようとする課題】
しかし、図６に示したようなシステムでは、いずれかの人体検知器１で人体を検知すれば、人体を検知した位置に関係なく、全ての照明３を１００％点灯状態とするので、人の動きにあわせて所定の照明３を的確に段調光することができず、長い廊下、長い街路、展示会場など、照明制御を行わなければいけない領域が広い場合、必要以上に消費電力が大きくなるという問題点があった。
【０００５】
本発明は、上記問題点に鑑みなされたもので、その目的とするところは、人の動きに合わせて特定の照明を段調光できると共に、システム全体の消費電力の低減が図れる照明制御システムの構造を提供することにある。
【０００６】
【課題を解決するための手段】
上記目的を達成するため、本発明の照明制御システムは、周囲の照度が設定値以下であるかどうかを判定する照度判定手段と、人体の有無を検知する人体検知手段と、中輝度調光時間及び 100% 調光時間を別々にカウントするタイマと、内蔵する照明負荷を段調光制御する照明制御装置とを備えた人体検知機能付照明装置を複数接続して構成された照明制御システムであって、内蔵する前記人体検知手段が人体を検知していない場合でかつその周囲の照度が前記設定値より低い場合に、内蔵する前記照明負荷を低輝度点灯させ、内蔵する前記人体検知手段が人体を検知した場合でかつその周囲の照度が前記設定値より低い場合に、100% 調光時間の間、内蔵する照明負荷を100%点灯させると共に、他の所定の前記人体検知機能付照明装置に外部検知信号を送信し、内蔵する前記人体検知手段が人体を検知していない場合でかつ他の前記人体検知機能付照明装置が出力した前記外部検知信号を受信した場合に、中輝度調光時間の間、調光率を上げ、内蔵する前記照明負荷を中輝度点灯させるように、個々の前記人体検知機能付照明装置が構成されていることを特徴とするものである。
【０００７】
【作用】
本発明の照明制御システムを構成する人体検知機能付照明装置は、周囲が暗く、内蔵する人体検知手段が人体を検知していない場合に、内蔵する照明負荷を低輝度点灯状態とし、周囲が暗く、内蔵する人体検知手段が人体を検知した場合に、内蔵する照明負荷を１００％点灯状態とするように構成されている。また、人体検知機能付照明装置は、内蔵する人体検知手段が出力する人体検知信号を、他の人体検知機能付照明装置に外部検知信号として送信するための出力端子と、他の人体検知機能付照明装置が出力する外部検知信号を受信するための入力端子とを備えており、外部検知信号を受信した場合に、一定の時間、調光率を上げ、内蔵する照明負荷を中輝度点灯させるように構成されている。
【０００８】
ある人体検知機能付照明装置の出力端子を、どの人体検知機能付照明装置の入力端子に接続するかは任意に設定できるように構成されており、この設定は、例えば、ある人体検知機能付照明装置が人体を検知した場合、それ以後、人がどの範囲に移動しそうであるか等を考慮して設定しておく。このように構成することにより、人の移動に合わせて必要な時に必要な範囲を適度な明るさで照らしだすことができると共に、システム全体の消費電力の低減が図れる。
【０００９】
【実施例】
図１乃至図５に基づいて本発明の照明制御システムの一実施例について説明する。図１は照明制御システムの一実施例を示す構成図、図２は人体検知機能付照明装置の一実施例を示すブロック図、図３は人体検知機能付照明装置の照明制御動作の一実施例を示すフローチャート、図４及び図５は、それぞれ、所定動作時の人体検知機能付照明装置の各信号を示すタイミングチャートである。
【００１０】
まず、図２に基づいて人体検知機能付照明装置の一実施例について説明する。図２は、人体検知機能付照明装置の構成を示すブロック図である。図で、５は人体の有無を検知する人体検知手段で、人体検知手段５は、熱線センサ６、増幅器７、コンパレータ８で構成されており、人体が発する熱線を熱線センサ６で検知し、その出力を増幅器７及びコンパレータ８で波形整形して、制御回路９に人体検知信号ａを出力するように構成されている。
【００１１】
１０は照明負荷、１１は、トライアック用トリガ信号ｂを出力する調光回路１２と、そのトライアック用トリガ信号ｂを入力して照明負荷１０を駆動する駆動回路１３とで構成された、照明負荷１０を段調光制御する照明制御装置で、制御回路９が出力する制御信号ｃを入力した場合に、予め設定された調光率１５％で調光動作を行い、制御信号ｃが入力されない場合は、照明負荷１０を消灯状態とするように、また、後述する調光率設定信号を入力している間、調光率を３０％に上げるように構成されている。
【００１２】
１４は２種類の設定時間（調光率を３０％に上げるために制御回路９が調光率設定信号を出力している時間（３０％調光時間）、及び、照明負荷１０を１００％点灯させるために１００％点灯信号ｄを制御回路９が出力している時間（１００％調光時間））を別々にカウントするタイマ、１５は交流電源のゼロクロスを検知してゼロクロス検知信号ｅを制御回路９に出力するゼロクロス検知回路である。
【００１３】
制御回路９は、人体検知手段５が出力する人体検知信号ａを、他の人体検知機能付照明装置に外部検知信号ｆとして送信するための出力端子Ａと、他の人体検知機能付照明装置から外部検知信号ｇを受信するための入力端子Ｂとを備えており、外部検知信号ｇを受信すると、調光回路１２に調光率設定信号ｈを出力して、調光回路１２の調光率設定を３０％に上げ、予め設定された３０％調光時間の間、照明負荷１０を中輝度点灯（３０％点灯）させるように構成されている。
【００１４】
また、制御回路９は、周囲の照度が設定値以下であると、照度センサ１６（照度判定手段）が判定し、その旨の照度判定信号ｉを制御回路９に出力した場合に、制御信号ｃを調光回路１２に出力して、予め設定された調光率１５％で、照明負荷１０を低輝度点灯させる。
【００１５】
さらに、制御回路９は、人体検知手段５が人体を検知して出力する人体検知信号ａを入力すると共に、照度センサ１６が出力する、周囲の照度が設定値以下である旨の照度判定信号ｉを入力した場合、調光回路１２に１００％点灯信号ｄを、予め設定された１００％調光時間の間出力し、照明負荷１０を１００％点灯させる。
【００１６】
以上に説明した人体検知機能付照明装置の動作を、図３のフローチャートに基づいて詳細に説明する。人体検知機能付照明装置は、図３のフローチャートの（ａ）〜（ｆ）に対応した、以下の（ａ）〜（ｆ）に示す各動作を行うように構成されている。
【００１７】
（ａ）照度センサ１６が、周囲の照度が設定値以下になった旨の照度判定信号ｉを制御回路９に出力した場合、制御回路９は、調光回路１２に、制御信号ｃを出力し、内蔵する照明負荷１０を低輝度点灯（１５％点灯）させる。
【００１８】
（ｂ）照度センサ１６が、周囲の照度が設定値を越えた旨の照度判定信号ｉを制御回路９に出力した場合、制御回路９は、調光回路１２への制御信号ｃの出力を中止して、内蔵する照明負荷１０を消灯状態とする。
【００１９】
（ｃ）照度センサ１６が、周囲の照度が設定値以下になった旨の照度判定信号ｉを制御回路９に出力し、照明負荷１０が低輝度点灯（１５％点灯）している状態で、他の人体検知機能付照明装置から外部検知信号ｇを受信した場合、制御回路９は、調光回路１２に、調光率設定信号ｈを出力し、調光回路１２の調光率設定を３０％に上げ、内蔵する照明負荷１０を、３０％調光時間の間、中輝度点灯（３０％点灯）させる。中輝度点灯（３０％点灯）状態で、さらに、外部検知信号ｇを受信した場合は、その時点から再び３０％調光時間のカウントが開始される。
【００２０】
（ｄ）照度センサ１６が、周囲の照度が設定値以下になった旨の照度判定信号ｉを制御回路９に出力し、人体検知手段５が人体を検知して人体検知信号ａを制御回路９に出力した場合、制御回路９は、調光回路１２に、１００％点灯信号ｄを出力し、１００％調光時間の間、内蔵する照明負荷１０を１００％点灯させる。１００％点灯状態で、さらに、内蔵する人体検知手段５が人体を検知した場合は、その時点から再び１００％調光時間のカウントが開始される。
【００２１】
（ｅ）照度センサ１６が、周囲の照度が設定値以下になった旨の照度判定信号ｉを制御回路９に出力し、他の人体検知機能付照明装置が出力する外部検知信号ｇを受信し、制御回路９が、調光回路１２に、調光率設定信号ｈを出力し、調光回路１２の調光率設定を３０％に上げ、内蔵する照明負荷１０を中輝度点灯（３０％点灯）させている状態で、人体検知手段５が人体を検知して人体検知信号ａを制御回路９に出力した場合、制御回路９は、調光回路１２に、１００％点灯信号ｄを出力し１００％調光時間の間、内蔵する照明負荷１０を１００％点灯させる。さらに、１００％調光時間が経過した時点で、制御回路９から１００％点灯信号ｄは出力されなくなり、この時点で、すでに、３０％調光時間が経過していた場合、内蔵する照明負荷１０は低輝度点灯（１５％点灯）の状態に戻る。
【００２２】
（ｆ）照度センサ１６が、周囲の照度が設定値以下になった旨の照度判定信号ｉを制御回路９に出力し、他の人体検知機能付照明装置から外部検知信号ｇを受信し、制御回路９が、調光回路１２に、調光率設定信号ｈを出力し、調光回路１２の調光率設定を３０％に上げ、内蔵する照明負荷１０を中輝度点灯（３０％点灯）させている状態で、人体検知手段５が人体を検知して人体検知信号ａを制御回路９に出力した場合、制御回路９は、調光回路１２に、１００％点灯信号ｄを出力し１００％調光時間の間、内蔵する照明負荷１０を１００％点灯させる。その後、１００％調光時間が経過した時点で、制御回路９から１００％点灯信号ｄは出力されなくなり、この時点で、まだ、３０％調光時間が経過していない場合、内蔵する照明負荷１０は、中輝度点灯（３０％点灯）の状態に戻り、３０％調光時間が経過した後、低輝度点灯（１５％点灯）状態に戻る。但し、この場合、３０％調光時間は、１つの外部検知信号ｇによる３０％調光時間だけでなく、１００％調光時間中に、再び、外部検知信号ｇを受信した場合に発生する３０％調光時間等も含まれる。
【００２３】
次に、以上に説明した動作のうち、（ｅ）、（ｆ）に示した動作時の人体検知機能付照明装置の各信号を、それぞれ、図４、図５のタイミングチャートに基づいて説明する。図４及び図５のタイミングチャートは、人体検知手段５が出力する人体検知信号ａ、他の人体検知機能付照明装置から受信した外部検知信号ｇ、照度センサ１６が出力する照度判定信号ｉ、制御回路９が調光回路１２に出力する、調光率設定信号ｈ及び１００％点灯信号ｄ、ゼロクロス検知回路１５が制御回路９に出力するゼロクロス検知信号ｅ、調光回路１２が駆動回路１３に出力するトライアック用トリガ信号ｂ、照明負荷１０の点灯状態を示す照明調光率ｊ、ＡＣ入力ｋの信号を示したものである。
【００２４】
まず、図４に示すように、照度センサ１６が制御回路９に、時刻ｔ１の時点で、周囲の照度が設定値以下になった旨の照度判定信号ｉを出力すると、制御回路９が調光回路１２に制御信号ｃ（図示省略）を出力するので、ゼロクロス検知信号ｅの立ち上がり（時刻ｔ２）に合わせて照明調光率ｊは、０％から予め設定された低輝度点灯状態の調光率である１５％に変化する。次に、他の人体検知機能付照明装置から受信した外部検知信号ｇの立ち上がり（時刻ｔ３）で、制御回路９から調光回路１２に、調光率設定信号ｈが出力され、調光回路１２の調光率設定は３０％に上がる。その後、ゼロクロス検知信号ｅの立ち上がり（時刻ｔ４）に合わせて照明調光率ｊは１５％から中輝度点灯状態の調光率である３０％に変化する。
【００２５】
次に、３０％調光時間Ｈ１が経過する前の、時刻ｔ５の時点で、内蔵する人体検知手段５が人体を検知して制御回路９に人体検知信号ａを出力するので、制御回路９は、調光回路１２に、１００％点灯信号ｄを出力する。これにより、ゼロクロス検知信号ｅの立ち上がり（時刻ｔ６）の時点で、照明調光率ｊは、３０％から１００％に変化する。その後、３０％調光時間Ｈ１が経過した時点（時刻ｔ７）で、制御回路９から調光率設定信号ｈが出力されなくなるので、調光回路１２の調光率設定は１５％に戻る。さらに、１００％点灯時間Ｈ２が経過した時点（時刻ｔ８）で、制御回路９から１００％点灯信号ｄは出力されなくなるので、ゼロクロス検知信号ｅの立ち下がり（時刻ｔ９）に合わせて照明調光率ｊは、１００％から低輝度点灯状態の調光率である１５％に変化する。
【００２６】
次に、図５に基づいて、（ｆ）に示した動作時の各信号の状態を説明する。この場合、周囲は既に暗い状態で、照明負荷１０は低輝度点灯状態（１５％点灯状態）である。まず、他の人体検知機能付照明装置から受信した外部検知信号ｇの立ち上がり時点（時刻ｔ１０）で、制御回路９から調光回路１２に、３０％調光時間Ｈ３の間、調光率設定信号ｈが出力され、調光回路１２の調光率設定が３０％に上がる。その後、ゼロクロス検知信号ｅの立ち上がり（時刻ｔ１１）に合わせて、照明調光率ｊは１５％から中輝度点灯状態の調光率である３０％に変化する。次に、３０％調光時間Ｈ３が経過する前の、時刻ｔ１２の時点で、内蔵する人体検知手段５が人体を検知して制御回路９に人体検知信号ａを出力するので、制御回路９は、調光回路１２に１００％点灯信号ｄを出力し、ゼロクロス検知信号ｅの立ち上がり（時刻ｔ１３）に合わせて照明調光率ｊは、３０％から１００％に変化する。その後、時刻ｔ１４の時点で、制御回路９から調光率設定信号ｈは出力されなくなるので、調光回路１２の調光率設定は、一旦、１５％に戻るが、１００％調光時間Ｈ４が経過する前に、再び、外部検知信号ｇを、時刻ｔ１５の時点で受信するので、調光率設定信号ｈが制御回路９から調光回路１２に出力されて調光回路１２の調光率設定は、再び、３０％になる。
【００２７】
その後、時刻ｔ１６の時点で、制御回路９から１００％点灯信号ｄは出力されなくなるので、ゼロクロス検知信号ｅの立ち下がり（時刻ｔ１７）に合わせて照明調光率ｊは、１００％から中輝度点灯状態の調光率である３０％に変化する。この場合、時刻ｔ１７の時点では、まだ、２度目に受信した外部検知信号ｇの入力時点（時刻ｔ１５）から３０％調光時間Ｈ５が経過していないので、照明調光率ｊは１００％から中輝度点灯状態の調光率である３０％に変化する。
【００２８】
その後、時刻ｔ１８の時点で、制御回路９から調光率設定信号ｈは出力されなくなるので、調光回路１２の調光率設定は１５％に戻り、ゼロクロス検知信号ｅの立ち上がり（時刻ｔ１９）に合わせて照明調光率ｊは３０％から低輝度点灯状態の調光率である１５％に変化する。さらに、時刻ｔ２０の時点で、照度センサ１６が制御回路９に出力する照度判定信号ｉは、周囲の照度が所定の設定値を越えた旨の信号となり、制御回路９から調光回路１２に制御信号ｃは出力されなくなるので、ゼロクロス検知信号ｅの立ち上がり（時刻ｔ２１）に合わせて照明調光率ｊは１５％から０％（消灯状態）に変化する。
【００２９】
次に、図１に基づいて本発明の照明制御システムの一実施例について説明する。図１に示す照明制御システムは、図２に示した人体検知機能付照明装置を複数互いに接続して構成されたものであるが、図１では、隣接する５つの人体検知機能付照明装置で照明制御システムが構成されているとして説明する。
【００３０】
図１で、Ｃ１〜Ｃ５は人体検知機能付照明装置で、それぞれ、熱線センサ６と、照明負荷１０と、熱線センサ６から出力される人体検知信号ａを、外部検知信号ｆとして、他の人体検知機能付照明装置に送信するための出力端子Ａと、他の人体検知機能付照明装置からの外部検知信号ｇを受信するための入力端子Ｂとを備えている。
【００３１】
図１で、人体検知機能付照明装置Ｃ３の出力端子Ａは、人体検知機能付照明装置Ｃ２，Ｃ４の入力端子Ｂに接続されている。同様に、人体検知機能付照明装置Ｃ１の出力端子Ａは、人体検知機能付照明装置Ｃ２の入力端子Ｂに、人体検知機能付照明装置Ｃ５の出力端子Ａは、人体検知機能付照明装置Ｃ４の入力端子Ｂに、人体検知機能付照明装置Ｃ２の出力端子Ａは、人体検知機能付照明装置Ｃ１，Ｃ３の入力端子Ｂに、人体検知機能付照明装置Ｃ４の出力端子Ａは、人体検知機能付照明装置Ｃ３，Ｃ５の入力端子Ｂに、それぞれ接続されている。
【００３２】
次に、図１に基づいて、人体検知機能付照明装置Ｃ３に内蔵された熱線センサ６が人を検知した場合に、各人体検知機能付照明装置が、どのように動作するかを説明する。但し、人体検知機能付照明装置Ｃ１〜Ｃ５の周囲は暗い状態（照度が設定値以下の状態）であるとする。
【００３３】
まず、内蔵する熱線センサ６で人体を検知した人体検知機能付照明装置Ｃ３は、内蔵する照明負荷１０を１００％点灯させると共に、出力端子Ａから外部検知信号ｆを、隣接する人体検知機能付照明装置Ｃ２，Ｃ４の入力端子Ｂに出力する。その外部検知信号ｆを外部検知信号ｇとして受信した人体検知機能付照明装置Ｃ２，Ｃ４は、それぞれ、調光率を１５％から３０％に上げて、内蔵する照明負荷１０を中輝度点灯（３０％点灯）させ、人が移動してくるのを待つ。人体検知機能付照明装置Ｃ１，Ｃ５は、人体検知機能付照明装置Ｃ３が出力する外部検知信号ｆを受信するように接続されていないので、人体検知機能付照明装置Ｃ３に内蔵された熱線センサ６が人体を検知したかどうかにかかわらず、人体検知機能付照明装置Ｃ１，Ｃ５に内蔵された照明負荷１０は低輝度点灯（１５％点灯）状態のままである。
【００３４】
なお、人体検知機能付照明装置の構成、調光率、人体検知機能付照明装置同士の接続方法は実施例に限定されない。また、実施例では、３段階に段調光する例を示したが、外部検知信号を入力する入力端子の数、または、外部検知信号を出力する出力端子の数を増やし、それらの端子に対応して調光率を複数設定し、さらに段数の多い調光制御を行うように構成してもよい。
【００３５】
【発明の効果】
本発明の照明制御システムによれば、人体検知機能付照明装置が人体を検知して出力する外部検知信号を、他のどの人体検知機能付照明装置に送信するか（外部検知信号の送信範囲）をユーザーの要求に合わせて設定することにより、人の移動しそうな照明制御範囲を、他の照明制御範囲より高輝度で照らすことができ、人の移動に合わせて必要な時に必要な範囲を適度な明るさで照らしだすことができると共に、全照明負荷を１００％点灯させる場合に比べてシステム全体の消費電力の低減が図れる。
【００３６】
また、本発明の照明制御システムは、人の位置に合わせて所定の照明負荷を制御できるので、展示会場等の誘導灯として用いることもできる。さらに、多段調光が可能なので、種々の演出にも応用することができる。
【図面の簡単な説明】
【図１】本発明の照明制御システムの一実施例を示す構成図である。
【図２】本発明の照明制御システムを構成する人体検知機能付照明装置の一実施例を示すブロック図である。
【図３】本発明の照明制御システムを構成する人体検知機能付照明装置の照明制御動作の一実施例を示すフローチャートである。
【図４】本発明の照明制御システムを構成する人体検知機能付照明装置の各信号を示すタイミングチャートである。
【図５】本発明の照明制御システムを構成する人体検知機能付照明装置の各信号を示すタイミングチャートである。
【図６】従来の照明制御システムの一例を示す構成図である。
【図７】従来の照明制御システムの照明制御動作の一例を示すフローチャートである。
【符号の説明】
５人体検知手段
１０照明負荷
１１照明制御装置
１６照度センサ（照度判定手段）
Ｃ１〜Ｃ５人体検知機能付照明装置[0001]
[Industrial applications]
The present invention relates to a lighting control system including a plurality of lighting devices with a human body detection function.
[0002]
[Prior art]
The present invention relates to a lighting control system that determines the brightness of the surroundings, detects the presence or absence of a human body, and performs automatic dimming control of a lighting load. As a means for detecting the presence or absence of a human body, a method using a heat ray sensor for detecting a temperature change due to the movement of a person is generally used.As a dimming control means for a lighting load, a phase control using a triac is used to control the lighting load. In general, dimming is performed. An example of such a lighting control system is shown in FIG. 6, for example. FIG. 6 is a configuration diagram showing a configuration of the illumination control system. The illumination control system shown in FIG. 6 includes a plurality of human body detectors 1 (child units) that detect a heat ray emitted by a human body and output a human body detection signal, and a plurality of them. The main body 2 includes a built-in illuminance sensor (not shown) connected to the human body detector 1, a plurality of lights 3 connected to the main body 2, and an AC power supply 4.
[0003]
An example of the lighting control operation of the lighting control system shown in FIG. 6 is shown in the flowchart of FIG. As shown in FIG. 7, the lighting control system determines the surrounding brightness with an illuminance sensor built in the parent device 2, turns off all the lights 3 when the surroundings are bright, and turns off all the lights 3 when the surroundings are dark. When the illumination 3 is turned on at a low luminance (about 15 to 20%) and any of the human body detectors 1 detects a human body and outputs a human body detection signal, the parent device 2 receives the human body detection signal and receives a predetermined signal. During the set time, after all the lights 3 are turned on 100%, all the lights 3 are returned to the low-luminance lighting state, and when the surroundings become bright, all the lights 3 are turned off. ing.
[0004]
[Problems to be solved by the invention]
However, in the system as shown in FIG. 6, if a human body is detected by any one of the human body detectors 1, all the lights 3 are turned on 100% regardless of the position where the human body is detected. If the predetermined lighting 3 cannot be properly dimmed in accordance with the movement, and the area where lighting control must be performed, such as a long corridor, a long street, or an exhibition hall, is large, power consumption is unnecessarily large. There was a problem.
[0005]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting control system capable of stepwise dimming a specific lighting in accordance with the movement of a person and reducing the power consumption of the entire system. It is to provide structure.
[0006]
[Means for Solving the Problems]
To achieve the above object, the lighting control system of the present invention, the illuminance determination unit determines whether less than ambient illuminance set value, and the human body detecting means for detecting the presence or absence of a human body, medium luminance dimming time And a lighting control device configured to connect a plurality of lighting devices with a human body detection function, each of which includes a timer for separately counting the 100% dimming time and a lighting control device for performing built-in dimming control of a built-in lighting load. When the built-in human body detecting means does not detect a human body, and when the illuminance around the built-in human body detecting means is lower than the set value, the built-in lighting load is turned on with low brightness, and the built-in human body detecting means is a human body. Is detected, and when the surrounding illuminance is lower than the set value, the built-in lighting load is turned on 100% during the 100% dimming time , and another predetermined lighting device with a human body detection function is provided. External detection signal Signal, and when the built-in human body detection means does not detect a human body and receives the external detection signal output by the other lighting device with a human body detection function, during the medium luminance dimming time Each of the lighting devices with a human body detection function is configured to increase the dimming rate and light the built-in lighting load to medium brightness.
[0007]
[Action]
The lighting device with a human body detection function that constitutes the lighting control system of the present invention is configured such that when the surroundings are dark and the built-in human body detecting means does not detect a human body, the built-in lighting load is set to a low luminance lighting state and the surroundings are dark. When the built-in human body detecting means detects a human body, the built-in lighting load is set to a 100% lighting state. In addition, the lighting device with a human body detection function has an output terminal for transmitting a human body detection signal output by a built-in human body detection means to another lighting device with a human body detection function as an external detection signal, and a lighting device with another human body detection function. An input terminal for receiving an external detection signal output by the lighting device, and when the external detection signal is received, the dimming ratio is increased for a certain period of time so that the built-in lighting load is turned on with medium brightness. Is configured.
[0008]
It is configured such that the output terminal of a lighting device with a human body detection function can be arbitrarily set to be connected to the input terminal of the lighting device with a human body detection function. When the apparatus detects a human body, it is set in consideration of a range to which the person is likely to move thereafter. With such a configuration, a necessary range can be illuminated with appropriate brightness when necessary according to the movement of a person, and the power consumption of the entire system can be reduced.
[0009]
【Example】
An embodiment of a lighting control system according to the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing one embodiment of a lighting control system, FIG. 2 is a block diagram showing one embodiment of a lighting device with a human body detecting function, and FIG. 3 is one embodiment of a lighting control operation of the lighting device with a human body detecting function. 4 and FIG. 5 are timing charts showing signals of the lighting device with a human body detection function during a predetermined operation.
[0010]
First, an embodiment of a lighting device with a human body detection function will be described with reference to FIG. FIG. 2 is a block diagram illustrating a configuration of the illumination device with a human body detection function. In the figure, reference numeral 5 denotes a human body detecting means for detecting the presence or absence of a human body. The human body detecting means 5 comprises a heat ray sensor 6, an amplifier 7, and a comparator 8, and detects a heat ray emitted from the human body by the heat ray sensor 6, The output is shaped by an amplifier 7 and a comparator 8 to output a human body detection signal a to a control circuit 9.
[0011]
Reference numeral 10 denotes a lighting load, 11 denotes a dimming circuit 12 that outputs a triac trigger signal b, and a driving circuit 13 that receives the triac trigger signal b and drives the lighting load 10. When a control signal c output from the control circuit 9 is input, a dimming operation is performed at a preset dimming rate of 15%, and when the control signal c is not input, The lighting load 10 is turned off, and the dimming rate is increased to 30% while a dimming rate setting signal described later is being input.
[0012]
Reference numeral 14 denotes two types of setting times (the time during which the control circuit 9 outputs the dimming rate setting signal to increase the dimming rate to 30% (30% dimming time)) and the lighting load 10 is turned on 100%. The timer 15 separately counts the time (100% dimming time) during which the control circuit 9 outputs the 100% lighting signal d to perform the operation. The control circuit 15 detects a zero cross of the AC power supply and outputs a zero cross detection signal e. 9 is a zero-cross detection circuit.
[0013]
The control circuit 9 outputs the human body detection signal “a” output from the human body detection means 5 to another illumination device with a human body detection function as an external detection signal “f”. An input terminal B for receiving an external detection signal g, and upon receiving the external detection signal g, outputs a dimming rate setting signal h to the dimming circuit 12 and The setting is increased to 30%, and the lighting load 10 is turned on with medium brightness (30% lighting) for a preset 30% dimming time.
[0014]
Further, the control circuit 9 determines that the illuminance sensor 16 (illuminance determination means) determines that the surrounding illuminance is equal to or less than the set value, and outputs an illuminance determination signal i to that effect to the control circuit 9. Is output to the dimming circuit 12, and the illumination load 10 is turned on with low luminance at a preset dimming rate of 15%.
[0015]
Further, the control circuit 9 receives the human body detection signal a output from the human body detection means 5 by detecting a human body, and outputs an illuminance determination signal i output from the illuminance sensor 16 indicating that the ambient illuminance is equal to or less than a set value. Is input, a 100% lighting signal d is output to the dimming circuit 12 for a preset 100% dimming time, and the lighting load 10 is illuminated 100%.
[0016]
The operation of the lighting device with a human body detection function described above will be described in detail based on the flowchart of FIG. The lighting device with a human body detection function is configured to perform the following operations (a) to (f) corresponding to (a) to (f) in the flowchart of FIG.
[0017]
(A) When the illuminance sensor 16 outputs an illuminance determination signal i indicating that the surrounding illuminance has become equal to or less than the set value to the control circuit 9, the control circuit 9 outputs a control signal c to the dimming circuit 12. Then, the built-in lighting load 10 is turned on with low brightness (15% lighting).
[0018]
(B) When the illuminance sensor 16 outputs the illuminance determination signal i indicating that the surrounding illuminance has exceeded the set value to the control circuit 9, the control circuit 9 stops outputting the control signal c to the dimming circuit 12. Then, the built-in lighting load 10 is turned off.
[0019]
(C) In a state where the illuminance sensor 16 outputs an illuminance determination signal i indicating that the illuminance of the surroundings has become equal to or less than the set value to the control circuit 9, and the illumination load 10 is illuminated with low luminance (15% illumination). When an external detection signal g is received from another lighting device with a human body detection function, the control circuit 9 outputs a dimming rate setting signal h to the dimming circuit 12, and sets the dimming rate of the dimming circuit 12 to 30. %, And the built-in lighting load 10 is turned on with medium brightness (30% lighting) during the 30% dimming time. When the external detection signal g is received in the state of medium luminance lighting (30% lighting), counting of the 30% dimming time is started again from that point.
[0020]
(D) The illuminance sensor 16 outputs an illuminance determination signal i indicating that the surrounding illuminance has become equal to or less than the set value to the control circuit 9, and the human body detecting means 5 detects a human body and outputs a human body detection signal a to the control circuit 9. In this case, the control circuit 9 outputs a 100% lighting signal d to the dimming circuit 12, and lights the built-in lighting load 10 for 100% during the 100% dimming time. When the built-in human body detecting means 5 detects a human body in the 100% lighting state, counting of the 100% dimming time is started again from that point.
[0021]
(E) The illuminance sensor 16 outputs an illuminance determination signal i indicating that the illuminance of the surroundings has become equal to or less than the set value to the control circuit 9, and receives the external detection signal g output from another illuminating device with a human body detection function. Then, the control circuit 9 outputs a dimming rate setting signal h to the dimming circuit 12, raises the dimming rate setting of the dimming circuit 12 to 30%, and turns on the built-in lighting load 10 to medium brightness lighting (30% lighting). If the human body detection means 5 detects a human body and outputs a human body detection signal a to the control circuit 9 in the state where the control circuit 9 is in operation, the control circuit 9 outputs a 100% lighting signal d to the dimming circuit 12 and outputs a signal 100%. During the% dimming time, the built-in lighting load 10 is turned on 100%. Further, when the 100% dimming time has elapsed, the control circuit 9 does not output the 100% lighting signal d. At this time, if the 30% dimming time has already elapsed, the built-in lighting load 10 Returns to the low-luminance lighting (15% lighting) state.
[0022]
(F) The illuminance sensor 16 outputs an illuminance determination signal i indicating that the illuminance of the surroundings has become equal to or less than a set value to the control circuit 9, receives an external detection signal g from another illuminating device with a human body detection function, and performs control. The circuit 9 outputs a dimming rate setting signal h to the dimming circuit 12, raises the dimming rate setting of the dimming circuit 12 to 30%, and turns on the built-in lighting load 10 to medium brightness (30% lighting). When the human body detecting means 5 detects a human body and outputs a human body detection signal a to the control circuit 9 in a state in which the control circuit 9 is in the state, the control circuit 9 outputs a 100% lighting signal d to the dimming circuit 12 to perform 100% adjustment. During the light time, the built-in lighting load 10 is turned on 100%. Thereafter, when the 100% dimming time has elapsed, the control circuit 9 stops outputting the 100% lighting signal d. At this time, if the 30% dimming time has not elapsed yet, the built-in lighting load 10 Returns to the state of medium brightness lighting (30% lighting), and returns to the low brightness lighting (15% lighting) state after 30% dimming time has elapsed. In this case, however, the 30% dimming time is generated when the external detection signal g is received again during the 100% dimming time as well as the 30% dimming time by one external detection signal g. % Dimming time is also included.
[0023]
Next, among the operations described above, each signal of the lighting device with a human body detection function at the time of the operations shown in (e) and (f) will be described based on the timing charts of FIGS. 4 and 5, respectively. . 4 and 5 show a human body detection signal a output from the human body detection means 5, an external detection signal g received from another lighting device with a human body detection function, an illuminance determination signal i output from the illuminance sensor 16, and control. The dimming rate setting signal h and the 100% lighting signal d output from the circuit 9 to the dimming circuit 12, the zero-cross detection signal e output from the zero-cross detection circuit 15 to the control circuit 9, and the dimming circuit 12 output to the drive circuit 13. 3 shows a triac trigger signal b, a lighting dimming ratio j indicating a lighting state of the lighting load 10, and a signal of an AC input k.
[0024]
First, as shown in FIG. 4, when the illuminance sensor 16 outputs to the control circuit 9 an illuminance determination signal i indicating that ambient illuminance has become equal to or less than a set value at a time t1, the control circuit 9 performs dimming. Since the control signal c (not shown) is output to the circuit 12, the lighting dimming rate j is adjusted from 0% to a preset dimming rate in the low-luminance lighting state in accordance with the rise of the zero-cross detection signal e (time t2). 15%. Next, at the rising edge (time t3) of the external detection signal g received from another lighting device with a human body detection function, the control circuit 9 outputs a dimming rate setting signal h to the dimming circuit 12, and the dimming circuit 12 The dimming rate setting of the camera goes up to 30%. Thereafter, the illumination dimming rate j changes from 15% to 30%, which is the dimming rate in the medium luminance lighting state, in accordance with the rise of the zero-cross detection signal e (time t4).
[0025]
Next, at time t5 before the 30% dimming time H1 elapses, the built-in human body detecting means 5 detects the human body and outputs the human body detection signal a to the control circuit 9, so that the control circuit 9 , A 100% lighting signal d is output to the dimming circuit 12. As a result, the illumination dimming rate j changes from 30% to 100% at the time of rising of the zero-cross detection signal e (time t6). Thereafter, when the 30% dimming time H1 has elapsed (time t7), the dimming rate setting signal h is no longer output from the control circuit 9, so that the dimming rate setting of the dimming circuit 12 returns to 15%. Further, when the 100% lighting time H2 has elapsed (time t8), the control circuit 9 no longer outputs the 100% lighting signal d, so that the illumination dimming rate is adjusted in accordance with the fall of the zero-cross detection signal e (time t9). j changes from 100% to 15% which is the dimming rate in the low luminance lighting state.
[0026]
Next, the state of each signal at the time of the operation shown in (f) will be described with reference to FIG. In this case, the surroundings are already dark, and the illumination load 10 is in a low-luminance lighting state (15% lighting state). First, at the rising time (time t10) of the external detection signal g received from another lighting device with a human body detection function, the control circuit 9 sends a signal to the dimming circuit 12 during the 30% dimming time H3 for the dimming rate setting signal. h is output, and the dimming rate setting of the dimming circuit 12 is increased to 30%. Thereafter, the illumination dimming rate j changes from 15% to 30%, which is the dimming rate in the medium luminance lighting state, in accordance with the rise of the zero-cross detection signal e (time t11). Next, at time t12 before the 30% dimming time H3 elapses, the built-in human body detecting means 5 detects the human body and outputs the human body detection signal a to the control circuit 9, so that the control circuit 9 Then, a 100% lighting signal d is output to the dimming circuit 12, and the illumination dimming rate j changes from 30% to 100% in accordance with the rise of the zero-cross detection signal e (time t13). Thereafter, at time t14, the dimming rate setting signal h is not output from the control circuit 9, so that the dimming rate setting of the dimming circuit 12 temporarily returns to 15%, but the 100% dimming time H4 is reduced. Before the elapse, the external detection signal g is received again at time t15, so that the dimming rate setting signal h is output from the control circuit 9 to the dimming circuit 12, and the dimming rate setting of the dimming circuit 12 is performed. Becomes 30% again.
[0027]
Thereafter, at time t16, the control circuit 9 no longer outputs the 100% lighting signal d, so that the illumination dimming rate j is changed from 100% to medium brightness in accordance with the fall of the zero-cross detection signal e (time t17). It changes to the dimming rate of the state of 30%. In this case, at the time t17, the 30% dimming time H5 has not yet elapsed since the input time of the external detection signal g received at the second time (time t15), so that the lighting dimming rate j is 100%. It changes to 30%, which is the dimming rate in the medium luminance lighting state.
[0028]
Thereafter, at time t18, the dimming rate setting signal h is no longer output from the control circuit 9, so that the dimming rate setting of the dimming circuit 12 returns to 15% and the rising edge of the zero-cross detection signal e (time t19). At the same time, the illumination dimming rate j changes from 30% to 15% which is the dimming rate in the low luminance lighting state. Further, at time t20, the illuminance determination signal i output from the illuminance sensor 16 to the control circuit 9 becomes a signal indicating that the surrounding illuminance has exceeded a predetermined set value. Since the signal c is no longer output, the illumination dimming rate j changes from 15% to 0% (off state) in accordance with the rise of the zero-cross detection signal e (time t21).
[0029]
Next, an embodiment of a lighting control system according to the present invention will be described with reference to FIG. The illumination control system shown in FIG. 1 is configured by connecting a plurality of the illumination devices with a human body detection function shown in FIG. 2 to each other. In FIG. Description will be made assuming that the control system is configured.
[0030]
In FIG. 1, C1 to C5 denote lighting devices with a human body detection function. The human body detection signal a output from the heat ray sensor 6, the illumination load 10, and the heat ray sensor 6 is used as an external detection signal f, and the other human body is used. An output terminal A for transmitting to the illumination device with a detection function and an input terminal B for receiving an external detection signal g from another illumination device with a human body detection function are provided.
[0031]
In FIG. 1, the output terminal A of the lighting device C3 with a human body detection function is connected to the input terminals B of the lighting devices C2 and C4 with a human body detection function. Similarly, the output terminal A of the lighting device C1 with a human body detection function is connected to the input terminal B of the lighting device C2 with a human body detection function, and the output terminal A of the lighting device C5 with a human body detection function is connected to the input terminal B of the lighting device C4. The input terminal B has an output terminal A of the lighting device C2 with a human body detection function, the input terminal B has input terminals B of the lighting devices C1 and C3 with a human body detection function, and the output terminal A of the lighting device C4 has a human body detection function. They are connected to the input terminals B of the lighting devices C3 and C5, respectively.
[0032]
Next, based on FIG. 1, how each lighting device with a human body detection function operates when the heat ray sensor 6 incorporated in the lighting device with a human body detection function C3 detects a person will be described. However, it is assumed that the surroundings of the lighting devices C1 to C5 with the human body detection function are in a dark state (a state in which the illuminance is equal to or less than a set value).
[0033]
First, the illuminating device C3 with a human body detecting function that detects a human body by the built-in heat ray sensor 6 turns on the built-in lighting load 100%, and outputs an external detection signal f from an output terminal A to the adjacent lighting device with a human body detecting function. Output to the input terminal B of the devices C2 and C4. The illuminating devices C2 and C4 having the human body detecting function that have received the external detection signal f as the external detection signal g increase the dimming rate from 15% to 30%, respectively, and turn on the built-in illumination load 10 to medium brightness lighting (30%). % Lights up) and wait for a person to move. Since the lighting devices C1 and C5 with the human body detection function are not connected to receive the external detection signal f output from the lighting device C3 with the human body detection function, the heat ray sensor 6 built in the lighting device C3 with the human body detection function is not connected. Irrespective of whether the human body is detected or not, the illumination load 10 built in the lighting devices C1 and C5 with the human body detection function remains in the low-luminance lighting (15% lighting) state.
[0034]
The configuration of the lighting device with the human body detection function, the dimming rate, and the method of connecting the lighting devices with the human body detection function are not limited to the embodiments. Further, in the embodiment, the example in which the dimming is performed in three stages has been described. However, the number of input terminals for inputting the external detection signal or the number of output terminals for outputting the external detection signal is increased to correspond to those terminals. Then, a plurality of dimming ratios may be set to perform dimming control with more stages.
[0035]
【The invention's effect】
According to the illumination control system of the present invention, the external detection signal output by detecting the human body by the illumination device with the human body detection function is transmitted to any of the other illumination devices with the human body detection function (transmission range of the external detection signal). Can be set according to the user's requirements, so that the lighting control range where people are likely to move can be illuminated with higher brightness than other lighting control ranges, and the necessary range can be moderated when needed according to the movement of people. It is possible to illuminate at a high brightness and to reduce the power consumption of the entire system as compared with a case where the entire lighting load is turned on 100%.
[0036]
Further, the lighting control system of the present invention can control a predetermined lighting load according to the position of a person, and thus can be used as a guide light in an exhibition hall or the like. Further, since multi-stage dimming is possible, it can be applied to various effects.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing one embodiment of a lighting control system of the present invention.
FIG. 2 is a block diagram showing one embodiment of a lighting device with a human body detecting function which constitutes the lighting control system of the present invention.
FIG. 3 is a flowchart showing one embodiment of an illumination control operation of the illumination device with a human body detection function which constitutes the illumination control system of the present invention.
FIG. 4 is a timing chart showing signals of a lighting device with a human body detecting function which constitutes the lighting control system of the present invention.
FIG. 5 is a timing chart showing signals of a lighting device with a human body detecting function which constitutes the lighting control system of the present invention.
FIG. 6 is a configuration diagram illustrating an example of a conventional lighting control system.
FIG. 7 is a flowchart illustrating an example of a lighting control operation of a conventional lighting control system.
[Explanation of symbols]
5 Human body detecting means 10 Lighting load 11 Lighting control device 16 Illuminance sensor (illuminance determining means)
C1-C5 Lighting device with human body detection function

Claims

Illuminance determination means for determining whether the ambient illuminance is equal to or less than a set value, human body detection means for detecting the presence or absence of a human body , a timer for separately counting medium luminance dimming time and 100% dimming time, and built-in A lighting control system configured by connecting a plurality of lighting devices with a human body detection function including a lighting control device that performs stepwise dimming control of the lighting load,
When the built-in human body detecting means does not detect a human body and when the illuminance around the built-in human body is lower than the set value, the built-in lighting load is turned on with low brightness,
When the built-in human body detecting means detects a human body and the surrounding illuminance is lower than the set value, the built-in lighting load is turned on 100% during the 100% dimming time , and another predetermined Transmitting an external detection signal to the lighting device with the human body detection function,
When the built-in human body detection means does not detect a human body and receives the external detection signal output by the other lighting device with a human body detection function, the dimming rate is adjusted during the medium luminance dimming time. A lighting control system, wherein each of the lighting devices with a human body detection function is configured to light up the built-in lighting load with medium brightness.