JP4106593B2

JP4106593B2 - Lighting device

Info

Publication number: JP4106593B2
Application number: JP2002077952A
Authority: JP
Inventors: 寿明高橋; 康司森本; 和穂田中
Original assignee: Toshiba Lighting and Technology Corp
Current assignee: Toshiba Lighting and Technology Corp
Priority date: 2002-03-20
Filing date: 2002-03-20
Publication date: 2008-06-25
Anticipated expiration: 2022-03-20
Also published as: JP2003272876A

Description

【０００１】
【発明の属する技術分野】
本発明は、明るさ検出手段により照明制御対象を制御する照明装置に関する。
【０００２】
【従来の技術】
この種の照明装置は、特開２００１−１７６６７６号公報に開示されている。この従来の照明装置は、上記公報の図１３（ａ）によると、通信信号線１を介して制御部２に明るさセンサ３を接続するとともに、各明るさセンサ３に対応する照明器具５群を１照明制御単位として夫々Ｉ／Ｆ部４を介して通信信号線１に接続されている。
【０００３】
この装置は、明るさセンサ３が検出する明るさに基づいて制御部２から被照射面（作業面）の照度が略一定に保たれるように明るさ制御のための調光信号を通信信号線１及びＩ／Ｆ部４を通じて明るさセンサ３に対応する照明制御単位の照明器具５に送り、夫々の照明制御単位の照明器具５において明るさ制御を行わせるようになっている。
【０００４】
例えば、４台ずつ２列に並設した８台の照明器具５を１つの照明制御単位として調光制御する制御部を備えた明るさセンサ３を列間の中央に配設し、明るさセンサ３で照明制御単位の周囲空間の明るさを検出して被照射面である作業面の照度を略一定に保つように制御部によりフィードバック制御を行う装置の場合、１つの照明制御単位だけの配光分布は同公報図１５（ａ）に示すようになっているが、図１５（ｂ）に示すように複数の照明制御単位を並設すると、隣接する照明制御単位の境界部位では互いの照明が重なり、作業面の照度が高くなるが、各照明制御単位の明るさ制御部６の明るさセンサは自己の明るさ制御部６で制御する照明器具５による明かりだけでなく、図１６に示すように他の明るさ制御部６で制御される照明制御単位の照明器具５による明かりも検出しており、これによりフィードバック制御することによって均衡を保った配光分布が得るようになっている。
【０００５】
ところで、この種の照明装置では、夫々の明るさ制御部６でフィードバック制御を行うために明るさの目標値を実際の空間で設定するようになっており、従来は次のように行っていた。まず、実際の空間で確保したい明るさの時の明るさセンサに入射している光の量（明るさセンサの検出値）を明るさ目標値として明るさ制御部６のメモリに記憶する。なお、これらの設定は隣接する照明制御単位の照明の影響を含んだ状態で設定される。
【０００６】
上記設定方法では、まず、ユーザーは設定手段（例えば光リモコン送信器）を用いて調光命令を明るさ制御部６に送り、調光命令を受けた明るさ制御部６は所定の調光信号を制御対象となる各照明器具５に送って各照明器具５のランプ光を調光する。この場合明るさ制御部６は明るさセンサの検出によるフィードバック制御を停止し、上記の調光状態を保持する。
【０００７】
次いで、ユーザーは設定手段で明るさ制御部６に対して記憶命令を送り、この記憶命令を受けた明るさ制御部６ではそのときの明るさセンサの検出値をメモリに明るさの目標値として記憶する。この記憶後は、明るさ制御部６は明るさセンサの検出値が記憶した明るさの目標値になるように各照明器具５のランプ光をフィードバック制御よって調光する状態に戻る。
【０００８】
つまり、上記設定方法では、１つの照明制御単位毎に上記の明るさ目標値の設定操作を行っていくと、設定前の照明制御単位の照明器具５のランプ光の影響を受けて設定した後、影響を与えていた照明制御単位の設定を行う場合、この照明制御単位での調光制御により、先に設定した照明制御単位に対する影響度合いが変化するため、該照明制御単位の明るさ制御部６は明るさセンサの検出値に基づいてフィードバック制御を行い、ランプ光の調光率が変わることになる(＝設定済みの照明制御単位が設定中の照明制御単位のランプ光の影響を受けてフィードバック制御し、調光率が変化する)。
【０００９】
よって、１照明制御単位毎設定すると、同じ様な条件下でほぼ同じ明るさに設定しても、設定後には隣接する照明制御単位のランプ輝度(調光率)が疎らになる恐れがある(下面の明るさの分布も平均的でなく、場所によって、差が大きくなる(均斉度が悪くなる)可能性がある)。
【００１０】
そこで、下記のような手順で設定を行えば、前述のような現象を緩和できる。つまり実際の空間で明るさセンサに入射している光の量(明るさセンサの検出値)を記憶させる場合、前述のように隣接する照明制御単位の影響を含んだ状態で設定するためには、下記のような手順が最善である。
【００１１】
まず、上記設定方法の場合には、設定者は設定手段たるリモコン送信器７により調光命令を照明制御単位の明るさ制御部６に与えて照明制御単位に属する照明器具５を調光する。(明るさセンサの検出に基づいたフィードバック制御を中止し、調光状態を保持する。)
そして全ての照明制御単位の明るさ制御部６にリモコン送信器７で順次調光命令を与えて調光し、空間全体の明るさを調整する。
【００１２】
例えば、ランプ初期の時は、全ての照明制御単位を保守率程度の７０％の調光レベルで点灯させたり、作業面の平均照度が約７５０ｌｘになるように調光する等の調整を行う。
【００１３】
そして、空間全体を確保したい明るさに調光設定したら、設定者はリモコン送信器７により各照明制御単位の明るさ制御部６に記憶命令を順次与えて送り、夫々の明るさ制御部６のメモリに明るさセンサの検出値を明るさ目標値として記憶させることで、明るさの目標値設定を完了する。
【００１４】
しかし、この方法では、設定する照明制御単位が多く、照明エリアが広いと、設定者の移動が多く、設定の労力は大変なものである。
【００１５】
【発明が解決しようとする課題】
上述したように、明るさ検出手段が設定された目標値となるように照明器具を制御するが、リモコンなどの外部信号により目標値を得るための設定信号を受信した際、その目標値にしたがい即座に制御を開始するため、多数の照明制御装置の設定をした場合、隣接する照明器具が未設定の状態における明るさ検出手段からの信号を目標値としてしまい、適切な目標値設定ができない場合が発生する。したがって、独立した照明制御単位を複数隣接するように並設した構成では明るさの目標値の設定時に上記のような不具合があった。
【００１６】
本発明は、互いに連動する構成を用いずに独立した照明制御対象を複数隣接するように並設して構成される照明装置において、大きな労力を要することなく、かつ隣接する照明制御単位の影響を含んだ明るさの目標値を設定することができる照明装置を提供することを目的とする。
【００１７】
【課題を解決するための手段】
請求項１記載の発明は、複数の明るさ検出手段と；各々の明るさ検出手段の出力に基づいて明るさがほぼ一定となるように制御される複数の照明制御対象と；設定信号を受信することによって第１の明るさ検出手段の出力に基づかないで第１の照明制御対象の明るさを変更することができる第１の所定期間をスタートさせて、この所定期間中に前記第１の明るさ検出手段からの出力により第１の照明制御対象の第１の目標照度を取得するようにし、前記第１の所定期間開始後であって、設定信号を受信することによって第２の明るさ検出手段の出力に基づかないで第２の照明制御対象の明るさを変更することができる第２の所定期間をスタートさせて、この所定期間中であって前記第１の所定期間終了前に前記第２の明るさ検出手段からの出力により第２の照明制御対象の第２の目標照度を取得するようにし、前記各照明制御対象の目標照度を設定する目標設定手段と；前記第１の所定期間終了後、各々の明るさ検出手段の出力に基づいて照明制御対象の明るさを制御する照明制御手段と；を具備していることを特徴とする。
【００１８】
請求項２の発明は、請求項１記載の照明装置において、第３の照明制御対象を有し、前記第１の所定期間開始後であって、設定信号を受信することによって第３の明るさ検出手段の出力に基づかないで前記第３の照明制御対象の明るさを変更することができる第３の所定期間をスタートさせて、この所定期間中であって前記第１の所定期間終了前に前記第３の明るさ検出手段からの出力により第３の照明制御対象の第３の目標照度を取得するようにしたことを特徴とする。
【００１９】
なお、照明制御対象は、例えば、ランプ単体またはランプを含んだ照明器具等であり、照明制御手段により制御可能なものであればその形態は何でもよい。そして、この照明制御対象は、照明制御手段により照度がほぼ一定になるように制御される。この場合、特定の照射面の照度や照明制御対象の周辺環境の照度等がほぼ一定となるように制御されてもよいし、ランプ単体の明るさがほぼ一定となるように制御されてもよい。
【００２０】
本発明によると、目標設定手段は、第１の所定期間を有し、この所定期間中に前記第１の明るさ検出手段からの出力により第１の照明制御対象の第１の目標照度を取得するようになし、前記第１の所定期間開始後であって、第２の照明制御対象の明るさを変更することができる第２の所定期間を有し、この所定期間中であって前記第１の所定期間終了前に前記第２の明るさ検出手段からの出力により第２の照明制御対象の第２の目標照度を取得するようにしているので、第１および第２の明るさ検出手段の出力に基づかないで第１および２の照明制御対象が適正に点灯している第１の所定期間において、各照明制御対象の目標照度を相手方の照明状態の影響を受けることになく容易に取得できる。
【００２１】
請求項２の発明は、請求項１記載の照明装置において、第３の照明制御対象を有し、前記第１の所定期間開始後であって、第３の明るさ検出手段の出力に基づかないで前記第３の照明制御対象の出力する明るさを変更することができる第３の所定期間を有し、この所定期間中であって前記第１の所定期間終了前に前記第３の明るさ検出手段からの出力により第３の照明制御対象の第３の目標照度を取得するようにしたことを特徴とする。
【００２２】
本発明によると、第３の照明制御対象がある場合でも請求項１の発明と同様の効果を得ることができる。
【００２３】
【発明の実施の形態】
以下、本発明の実施の形態に係る照明装置について、図１ないし３を参照して説明する。
【００２４】
本実施の形態の照明装置は、明るさ検出手段としての光センサｓ１、この光センサｓ１の出力に基づいて照度がほぼ一定に制御される複数の照明器具１−１…を有して構成される第１の照明制御対象１、第１の照明制御対象１の明るさを制御する照明制御手段ｃ１および目標設定手段ｏ１を有して構成されている。
【００２５】
目標設定手段ｏ１は、光センサｓ１の出力に基づかないで第１の照明制御対象１の明るさを変更することができる第１の所定期間を有し、この所定期間中に上記光センサｓ１からの出力により第１の照明制御対象１の第１の目標照度を取得するようにし、第１の所定期間開始後であって、光センサｓ２の出力に基づかないで第２の照明制御対象２の明るさを変更することができる第２の所定期間を有し、この所定期間中であって前記第１の所定期間終了前に前記光センサｓ２からの出力により第２の照明制御対象２の第２の目標照度を取得するようにしている。
【００２６】
また、照明器具１−１…は、下方開口した函状をなし、この器具本体内には、長手方向に沿った中央にＶ字形反射板２ａが取付けられるとともに、器具本体の両端にランプソケット３が対向して並列に設けられている。さらに、ランプソケット３間には、直管形蛍光ランプ５（以下「ランプ」という）が着脱自在に取付けられている。
【００２７】
この照明器具１−１…に内蔵されているリモコン受光素子（図示せず）を作動させるリモコン３０は、筐体３１上面部３２にリモコンの制御部を制御するスイッチ３３が取付けられている。このスイッチ３３は、照明器具のランプ５を点灯、消灯する押釦式のＯＮーＯＦＦスイッチ３３ａと、ランプの照度をアップする押釦式の三角状のアップスイッチ３３ｂと、ランプの照度をダウンさせる押釦式の逆三角状のダウンスイッチ３３ｃとを有している。なお、リモコン３０の送信部から発信された光信号が入射する孔６は、器具本体に取付けられているＶ字形反射板２ａの稜線７を中心として穿設されている。
【００２８】
本実施の形態の照明装置における各照明制御対象１および２の目標照度の設定方法について以下に説明する。
【００２９】
第１の照明制御対象１について、まず、照明器具１−１ないし４に対してリモコン送信機３０から第１の目標照度の設定を行うために設定信号を送信する。この設定信号を受信した照明器具は、光センサｓ１の出力に基づかないで明るさを変更することができる第１の所定期間（例えば、２０分）がスタートし、図３で表示した固定調光度制御状態となる。そして、第１の所定期間であって、予め設定された時間経過後（例えば１０分後）に光センサｓ１からの出力信号を第１の目標照度値として取得する（図３で表示した「目標値取得」）。そして、この第１の目標値を取得した後、さらに保持時間（１０分間）中は固定調光度制御状態を維持し、第１の所定期間終了後、光センサｓ１に基づいて第１の照明制御対象１を制御する。
【００３０】
なお、第１の所定期間である固定調光度維持状態において、光センサｓ１の信号の読み取りの際、複数回サンプリングをし、取得したデータからあまりにもかけ離れたデータは破棄し、平均値を第１の目標照度値として取得してもよい。
【００３１】
次に、第２の照明制御対象２について、第１の照明制御対象の第１の目標照度を取得する準備作業が終了した後、照明器具２−１ないし４に対してリモコン送信機３０から第２の目標照度の設定を行うために設定信号を送信する。この設定信号を受信した照明器具は、光センサｓ２の出力に基づかないで明るさを変更することができる第２の所定期間（例えば、２０分）が第１の所定期間開始後、スタートし、固定調光度制御状態となる。そして、第２の所定期間であって、予め設定された時間経過後（例えば１０分後）前記第１所定期間終了前、すなわち第１の照明制御対象１が光センサｓ１の出力に基づいて制御される前に、光センサｓ２からの出力信号を第２の目標照度値として取得する。そして、この第２の目標照度値を取得した後、さらに保持時間（１０分間）中は固定調光度制御状態を維持し、第２の所定期間終了後、光センサｓ２に基づいて第２の照明制御対象２を制御する。
【００３２】
なお、第２の所定期間である固定調光度維持状態において、光センサｓ２の信号の読み取りの際、複数回サンプリングをし、取得したデータからあまりにもかけ離れたデータは破棄し、平均値を第２の目標照度値として取得してもよい。
【００３３】
また、本照明装置において、さらに第３の照明制御対象等を有する場合には、前記第１の所定期間開始後であって、前記明るさ検出手段としての光センサの出力に基づかないで前記第３の照明制御対象の出力する明るさを変更することができる第３の所定期間を有し、この所定期間中であって前記第１の所定期間終了前に上記光センサからの出力により第３の照明制御対象の第３の目標照度を取得するようにする。したがって、照明制御対象が３以上の複数あっても各照明制御対象の目標照度を相手方の照明状態の影響を受けることになく容易に取得できるものである。
【００３４】
【発明の効果】
請求項１記載の発明によれば、目標設定手段は、設定信号を受信することによって第１の明るさ検出手段の出力に基づかないで第１の照明制御対象の明るさを変更することができる第１の所定期間をスタートさせて、この所定期間中に前記第１の明るさ検出手段からの出力により第１の照明制御対象の第１の目標照度を取得するようにし、前記第１の所定期間開始後であって、設定信号を受信することによって第２の明るさ検出手段の出力に基づかないで第２の照明制御対象の明るさを変更することができる第２の所定期間をスタートさせて、この所定期間中であって前記第１の所定期間終了前に前記第２の明るさ検出手段からの出力により第２の照明制御対象の第２の目標照度を取得するようにしているので、第１および第２の明るさ検出手段の出力に基づかないで第１および２の照明制御対象が適正に点灯している第１の所定期間において、各照明制御対象の目標照度を相手方の照明状態の影響を受けることになく容易に取得できる。
【００３５】
請求項２の発明は、第３の照明制御対象がある場合において、請求項１の発明と同様の効果を得ることができる。
【図面の簡単な説明】
【図１】本発明の一実施の形態に係る照明装置のブロック図。
【図２】同じく、照明器具の斜視図。
【図３】同じく、時間経過とともに生じる各照明制御対象の明るさの変化を示すグラフ。
【符号の説明】
ｓ１…明るさ検出手段、１，２…第１の照明制御対象、ｃ１，ｃ２…照明制御手段、ｏ１，ｏ２…目標設定手段。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting device that controls a lighting control target by means of brightness detection means.
[0002]
[Prior art]
This type of lighting device is disclosed in JP 2001-17667 6 JP. According to FIG. 13A of the above publication, this conventional lighting device connects the brightness sensor 3 to the control unit 2 via the communication signal line 1 and also includes a group of lighting fixtures 5 corresponding to each brightness sensor 3. Are connected to the communication signal line 1 via the I / F unit 4 respectively.
[0003]
This apparatus transmits a dimming signal for controlling brightness so that the illuminance of the irradiated surface (work surface) is maintained substantially constant from the control unit 2 based on the brightness detected by the brightness sensor 3. It is sent to the luminaire 5 of the illumination control unit corresponding to the brightness sensor 3 through the line 1 and the I / F unit 4, and the brightness control is performed in the luminaire 5 of each illumination control unit.
[0004]
For example, a brightness sensor 3 having a control unit that performs dimming control using eight lighting fixtures 5 arranged in parallel in four rows as one lighting control unit is arranged at the center between the rows. In the case of the apparatus in which the brightness of the surrounding space of the illumination control unit is detected in 3 and feedback control is performed by the control unit so as to keep the illuminance of the work surface as the irradiated surface substantially constant, the arrangement of only one illumination control unit The light distribution is as shown in FIG. 15A. However, when a plurality of illumination control units are arranged side by side as shown in FIG. As shown in FIG. 16, the brightness sensor of the brightness control unit 6 of each lighting control unit is not only the light from the lighting fixture 5 controlled by the own brightness control unit 6 but also the illumination intensity of the work surface is increased. The illumination control unit controlled by the other brightness control unit 6 Lighting by lighting apparatus 5 also has detected, thereby so that the light distribution obtained keeping the equilibrium by feedback control.
[0005]
By the way, in this kind of illuminating device, in order to perform feedback control in each brightness control part 6, the target value of brightness is set up in an actual space, and it was performed as follows conventionally. . First, the amount of light incident on the brightness sensor at the brightness that is desired to be secured in the actual space (detection value of the brightness sensor) is stored in the memory of the brightness control unit 6 as a brightness target value. In addition, these settings are set in a state including the influence of illumination of adjacent illumination control units.
[0006]
In the setting method, first, the user sends a dimming command to the brightness control unit 6 using setting means (for example, an optical remote control transmitter), and the brightness control unit 6 that receives the dimming command receives a predetermined dimming signal. Is sent to each lighting fixture 5 to be controlled, and the lamp light of each lighting fixture 5 is dimmed. In this case, the brightness control unit 6 stops feedback control based on the detection of the brightness sensor, and maintains the above dimming state.
[0007]
Next, the user sends a storage command to the brightness control unit 6 by the setting means, and the brightness control unit 6 that receives this storage command stores the detected value of the brightness sensor at that time in the memory as a target value of brightness. Remember. After this storage, the brightness control unit 6 returns to a state where the lamp light of each lighting fixture 5 is dimmed by feedback control so that the detected value of the brightness sensor becomes the stored target value of brightness.
[0008]
That is, in the above setting method, when the setting operation of the above brightness target value is performed for each lighting control unit, after the setting is performed under the influence of the lamp light of the lighting fixture 5 of the lighting control unit before the setting. When the lighting control unit that has been affected is set, since the degree of influence on the previously set lighting control unit changes due to the dimming control in this lighting control unit, the brightness control unit of the lighting control unit 6 performs feedback control based on the detection value of the brightness sensor, and the dimming rate of the lamp light changes (= the set lighting control unit is affected by the lamp light of the lighting control unit being set. Feedback control and dimming rate change).
[0009]
Therefore, if each lighting control unit is set, even if it is set to approximately the same brightness under similar conditions, the lamp luminance (dimming rate) of the adjacent lighting control unit may become sparse after setting ( The distribution of the brightness of the lower surface is not average, and the difference may be large depending on the location (the uniformity may be deteriorated)).
[0010]
Therefore, the above-described phenomenon can be alleviated by setting in the following procedure. In other words, when storing the amount of light incident on the brightness sensor in the actual space (detection value of the brightness sensor), in order to set it with the influence of the adjacent lighting control unit as described above, The following procedure is the best.
[0011]
First, in the case of the setting method described above, the setter gives a dimming command to the brightness control unit 6 of the lighting control unit by the remote control transmitter 7 as setting means to dimm the lighting fixture 5 belonging to the lighting control unit. (The feedback control based on the detection of the brightness sensor is stopped and the dimming state is maintained.)
Then, the brightness control unit 6 of all lighting control units is sequentially given a dimming command by the remote control transmitter 7 to adjust the brightness of the entire space.
[0012]
For example, at the initial stage of the lamp, all lighting control units are turned on at a dimming level of about 70% of the maintenance rate, or dimming is performed so that the average illuminance on the work surface is about 750 lx.
[0013]
Then, when the dimming is set to a brightness at which the entire space is desired to be secured, the setter sequentially sends a storage command to the brightness control unit 6 of each illumination control unit by the remote control transmitter 7 and sends it to each brightness control unit 6. Setting the detection value of the brightness sensor in the memory as the brightness target value completes the brightness target value setting.
[0014]
However, in this method, if there are many lighting control units to be set and the lighting area is wide, the setting person needs to move a lot, and the setting labor is great.
[0015]
[Problems to be solved by the invention]
As described above, the luminaire is controlled so that the brightness detection means has a set target value. When a setting signal for obtaining the target value is received by an external signal such as a remote controller, the target value is determined. When a large number of lighting control devices are set in order to start control immediately, the signal from the brightness detection means when the adjacent lighting fixtures are not set becomes the target value, and an appropriate target value cannot be set. Will occur. Therefore, the configuration in which a plurality of independent illumination control units are arranged side by side has the above-described problems when setting the brightness target value.
[0016]
The present invention provides a lighting device configured by arranging a plurality of independent lighting control objects so as to be adjacent to each other without using a configuration that is interlocked with each other. An object of the present invention is to provide an illuminating device that can set a target value of the included brightness.
[0017]
[Means for Solving the Problems]
The invention described in claim 1 includes a plurality of brightness detection means; a plurality of illumination control objects controlled so that the brightness is substantially constant based on the output of each brightness detection means; and a setting signal is received Thus, a first predetermined period in which the brightness of the first illumination control object can be changed without being based on the output of the first brightness detection means is started, and the first predetermined period is started during this predetermined period. A first target illuminance of the first illumination control target is obtained by an output from the brightness detection means , and the second brightness is received by receiving a setting signal after the start of the first predetermined period. A second predetermined period in which the brightness of the second illumination control target can be changed without being based on the output of the detection means is started, and the first predetermined period is ended during the predetermined period and before the end of the first predetermined period. The second brightness detection means To obtain a second target illuminance of the second illumination control target, and to set a target illuminance of each of the illumination control targets; and each brightness detection means after the end of the first predetermined period. Illumination control means for controlling the brightness of the object to be controlled based on the output of.
[0018]
According to a second aspect of the present invention, in the lighting device according to the first aspect of the present invention, the third brightness is controlled by receiving a setting signal after the first predetermined period, having the third lighting control target. A third predetermined period in which the brightness of the third lighting control target can be changed without being based on the output of the detection means is started, and during the predetermined period and before the end of the first predetermined period. The third target illuminance of the third illumination control target is acquired by the output from the third brightness detection means.
[0019]
The illumination control target is, for example, a single lamp or a lighting fixture including a lamp, and any form can be used as long as it can be controlled by the illumination control means. And this illumination control object is controlled by illumination control means so that illumination intensity becomes substantially constant. In this case, the illuminance of a specific irradiation surface, the illuminance of the surrounding environment of the illumination control target, or the like may be controlled to be substantially constant, or the brightness of a single lamp may be controlled to be substantially constant. .
[0020]
According to the present invention, the target setting means has a first predetermined period, and acquires the first target illuminance of the first illumination control target by the output from the first brightness detection means during the predetermined period. There is a second predetermined period after the start of the first predetermined period and the brightness of the second lighting control target can be changed. Since the second target illuminance of the second illumination control target is acquired by the output from the second brightness detection means before the end of one predetermined period, the first and second brightness detection means The target illuminance of each lighting control target can be easily obtained without being influenced by the lighting state of the other party during the first predetermined period when the first and second lighting control targets are properly lit without being based on the output of it can.
[0021]
According to a second aspect of the present invention, there is provided the lighting device according to the first aspect, wherein the lighting device has a third lighting control target and is not based on an output of the third brightness detecting means after the first predetermined period. A third predetermined period during which the brightness output from the third lighting control target can be changed, and the third brightness is during the predetermined period and before the end of the first predetermined period. The third target illuminance of the third illumination control target is acquired by the output from the detection means.
[0022]
According to the present invention, even when there is a third lighting control target, the same effect as that of the first aspect of the invention can be obtained.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an illuminating device according to an embodiment of the present invention will be described with reference to FIGS.
[0024]
The illuminating device of the present embodiment includes an optical sensor s1 as brightness detection means, and a plurality of luminaires 1-1 whose illuminance is controlled to be substantially constant based on the output of the optical sensor s1. The first illumination control object 1, the illumination control means c1 for controlling the brightness of the first illumination control object 1, and the target setting means o1 are configured.
[0025]
The target setting means o1 has a first predetermined period in which the brightness of the first illumination control target 1 can be changed without being based on the output of the optical sensor s1, and during the predetermined period, the target setting means o1 The first target illuminance of the first lighting control target 1 is acquired from the output of the first lighting control target 1, and after the start of the first predetermined period, the second lighting control target 2 of the second lighting control target 2 is not based on the output of the optical sensor s2. A second predetermined period in which the brightness can be changed, and the second illumination control target 2 is output by the output from the optical sensor s2 during the predetermined period and before the end of the first predetermined period. The target illuminance of 2 is acquired.
[0026]
The lighting fixtures 1-1 are formed in a box shape opened downward, and a V-shaped reflector 2a is attached to the center of the fixture body along the longitudinal direction, and lamp sockets 3 are attached to both ends of the fixture body. Are arranged in parallel to face each other. Further, a straight tube fluorescent lamp 5 (hereinafter referred to as “lamp”) is detachably mounted between the lamp sockets 3.
[0027]
In the remote controller 30 that operates a remote control light receiving element (not shown) built in the lighting fixtures 1-1..., A switch 33 that controls a control unit of the remote controller is attached to an upper surface portion 32 of the casing 31. This switch 33 is a push button type ON-OFF switch 33a for turning on and off the lamp 5 of the lighting fixture, a push button type triangular up switch 33b for increasing the illuminance of the lamp, and a push button type for reducing the illuminance of the lamp. Inverted triangular down switch 33c. In addition, the hole 6 into which the optical signal transmitted from the transmission part of the remote controller 30 enters is formed around the ridge line 7 of the V-shaped reflector 2a attached to the instrument body.
[0028]
A method for setting the target illuminance of each of the illumination control objects 1 and 2 in the illumination device of the present embodiment will be described below.
[0029]
For the first lighting control object 1, first, a setting signal is transmitted from the remote control transmitter 30 to the lighting fixtures 1-1 to 4 in order to set the first target illuminance. The luminaire having received this setting signal starts a first predetermined period (for example, 20 minutes) in which the brightness can be changed without being based on the output of the optical sensor s1, and the fixed dimming degree displayed in FIG. It becomes a control state. Then, the output signal from the optical sensor s1 is acquired as the first target illuminance value after the elapse of a preset time (for example, 10 minutes) during the first predetermined period (the “target displayed in FIG. 3” Value acquisition "). Then, after acquiring the first target value, the fixed dimming degree control state is maintained during the holding time (10 minutes), and after the first predetermined period, the first illumination control is performed based on the optical sensor s1. Control object 1.
[0030]
In the fixed dimming maintenance state, which is the first predetermined period, when the signal of the optical sensor s1 is read, sampling is performed a plurality of times, data far from the acquired data is discarded, and the average value is set to the first value. The target illuminance value may be acquired.
[0031]
Next, after the preparatory work for obtaining the first target illuminance of the first lighting control target for the second lighting control target 2 is finished, the remote control transmitter 30 sends the second lighting control target 2 to the lighting fixtures 2-1 to 4-4. A setting signal is transmitted to set the target illuminance of 2. The lighting apparatus that has received this setting signal starts after the first predetermined period starts after the second predetermined period (for example, 20 minutes) in which the brightness can be changed without being based on the output of the optical sensor s2, A fixed dimming control state is entered. Then, the second predetermined period, after a preset time (for example, 10 minutes), before the end of the first predetermined period, that is, the first illumination control object 1 is controlled based on the output of the optical sensor s1. Before being performed, the output signal from the optical sensor s2 is acquired as the second target illuminance value. Then, after obtaining the second target illuminance value, the fixed dimming degree control state is maintained during the holding time (10 minutes), and after the second predetermined period, the second illumination is performed based on the optical sensor s2. Control object 2 is controlled.
[0032]
In the fixed dimming maintenance state that is the second predetermined period, when reading the signal of the optical sensor s2, sampling is performed a plurality of times, data that is too far from the acquired data is discarded, and the average value is set to the second value. The target illuminance value may be acquired.
[0033]
Further, in the present lighting device, when there is a third illumination control target or the like, after the start of the first predetermined period, the first illumination control unit is not based on the output of the light sensor as the brightness detection means. And a third predetermined period during which the brightness output from the illumination control object 3 can be changed, and a third period is determined by the output from the photosensor during the predetermined period and before the end of the first predetermined period. The third target illuminance of the illumination control target is acquired. Therefore, even if there are a plurality of lighting control targets of 3 or more, the target illuminance of each lighting control target can be easily acquired without being affected by the lighting state of the other party.
[0034]
【The invention's effect】
According to the first aspect of the present invention, the target setting means can change the brightness of the first lighting control object by receiving the setting signal without being based on the output of the first brightness detection means. A first predetermined period is started, and the first target illuminance of the first illumination control target is acquired by the output from the first brightness detection means during the predetermined period, and the first predetermined period is acquired. After the period starts, a second predetermined period in which the brightness of the second illumination control target can be changed without receiving the setting signal and based on the output of the second brightness detection means is started. Te, since acquire the second second target illuminance of the illumination control target by an output from the second brightness detection means before the end of the first predetermined time period even during the predetermined time period , First and second brightness detection In the first predetermined period in which the first and second lighting control objects are properly lit without being based on the output of the stage, the target illuminance of each lighting control object is easily affected without being affected by the lighting state of the other party You can get it.
[0035]
The invention of claim 2 can obtain the same effect as that of the invention of claim 1 when there is a third lighting control target.
[Brief description of the drawings]
FIG. 1 is a block diagram of a lighting device according to an embodiment of the present invention.
FIG. 2 is a perspective view of a lighting fixture.
FIG. 3 is a graph showing the change in brightness of each illumination control target that occurs with time.
[Explanation of symbols]
s1 ... brightness detection means, 1, 2 ... first illumination control object, c1, c2 ... illumination control means, o1, o2 ... target setting means.

Claims

A plurality of brightness detection means;
A plurality of illumination control objects controlled so that the brightness is substantially constant based on the output of each brightness detection means;
By receiving the setting signal, a first predetermined period in which the brightness of the first illumination control target can be changed without being based on the output of the first brightness detection means is started, and during this predetermined period The first target illuminance of the first illumination control target is acquired by the output from the first brightness detection means, and after the start of the first predetermined period, the first signal is received by receiving the setting signal. A second predetermined period in which the brightness of the second illumination control target can be changed without being based on the output of the second brightness detection means, and during the predetermined period, the first predetermined period A target setting unit configured to obtain a second target illuminance of the second illumination control target by an output from the second brightness detection unit before the end, and to set a target illuminance of each of the lighting control targets;
Illumination control means for controlling the brightness of the illumination control object based on the output of each brightness detection means after the end of the first predetermined period;
An illumination device comprising:

A third lighting control target, and after the start of the first predetermined period, by receiving a setting signal and not based on the output of the third brightness detection means, A third predetermined period in which the brightness can be changed is started, and the third illumination is output by the output from the third brightness detecting means during the predetermined period and before the end of the first predetermined period. The lighting device according to claim 1, wherein the third target illuminance to be controlled is acquired.