JP2005093171A - Illumination control device - Google Patents

Illumination control device Download PDF

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JP2005093171A
JP2005093171A JP2003323276A JP2003323276A JP2005093171A JP 2005093171 A JP2005093171 A JP 2005093171A JP 2003323276 A JP2003323276 A JP 2003323276A JP 2003323276 A JP2003323276 A JP 2003323276A JP 2005093171 A JP2005093171 A JP 2005093171A
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value
illuminance
external light
illuminance value
lighting
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JP4385694B2 (en
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Yasushi Morimoto
Hisaaki Takahashi
康司 森本
寿明 高橋
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Toshiba Lighting & Technology Corp
東芝ライテック株式会社
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies
    • Y02B20/40Control techniques providing energy savings

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination control device controlling illuminance on a floor so as to keep the illuminance almost constant, by controlling the illuminance device so as to obtain the targeted illuminance, preventing flickering of the illumination, and to exhibit energy-saving effect. <P>SOLUTION: The illuminance value of the light from outside Ls on the floor is calculated, when the illumination device is lighted with a lower limit light control value, and a corrected illuminance value Lx is calculated by subtracting the illuminance value Ln at light control level of 10% from the illuminance value of the light from outside Ls. Whether a target illuminance value Lp is exceeded by the corrected illuminance value Lx is checked, and the lighting device is turned off, when the target illuminance value Lp is exceeded by the corrected illuminance value Lx, and the illumination device is turned on again, when a measured illuminance value Lm becomes lower than the target illuminance value Lp. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、周囲の明るさを検出して照明器具を制御する照明制御装置に関する。 The present invention relates to a lighting control device for controlling a lighting equipment by detecting the ambient brightness.

従来、器具本体に取付けられている照明ランプの明るさをインバータにより調整する照明器具において、器具本体に、照明ランプにより照らされている床面などの場所の明るさを計測して明るさに応じた信号を出力する照度計と、この照度計からの出力に応じてインバータを制御し、照明ランプの明るさを調節するためのコントローラとを設け、場所に適した調光を行うものが知られている(例えば、特許文献1参照)。 Conventionally, in the lighting fixture for adjusting the brightness of the illumination lamp is attached to the instrument main body by an inverter, the instrument body, according to the brightness to measure the brightness of the surroundings, such as the floor surface being illuminated by the illumination lamp an illuminance meter for outputting a signal, this controls the inverter according to the output from the luminometer, and a controller for adjusting the brightness of the illumination lamp is provided, are known to perform dimming suitable for location and it is (for example, see Patent Document 1).

しかしながら、照明器具の調光特性には非線形部分がある。 However, there is a non-linear portion in the dimming characteristics of the luminaire. すなわち、調光下限値があり、それ以下では照明ランプが消灯することになる。 That is, there is dimming lower limit value, so that the illumination lamp is turned off in less. 従って、照明器具を調光下限値で動作すると目標照度を越えてしまい、かといつて照明器具を消灯させ外光のみにすると目標照度に達しない領域が生じるが、このような領域に対しては照明器具を調光下限値で点灯し続けて対処することになり、結局、外光によって周囲が十分に明るくなっても照明器具を消灯させることができず無駄に電力を消費するという問題があった。 Therefore, when operating the luminaire dimming lower limit value would exceed the target illuminance, or a but when the region does not reach the target illuminance when to turn off the lighting equipment to only external light Te occurs, for such areas continues to light the lighting fixture in the dimming lower limit will be addressed, after all, there is a problem that the ambient by external light consumes wastefully power can not be also turn off the light fixture is sufficiently bright It was.

これを解決するため、例えば、外光が多量に入射する状態において照明器具が調光下限値で動作しているときの外光を含む照度から目標照度値を減じた値が調光下限値のみで動作したときの照明器具からの光束によって発生している床面照度と等しいかまたは大きい場合は照明器具を消灯させるという、照明器具の調光特性における非線形部分に関するあかりセンサ制御による消灯制御方式を実行することで省エネルギー効果を簡便かつ有効に発揮できるものが知られている(例えば、特許文献2参照)。 To solve this, for example, only the value dimming lower limit obtained by subtracting the target illuminance value from the illuminance including external light when the external light is operating in luminaires dimming lower limit value in a state where a large amount of incident in that case equal to or floor surface illuminance is caused by the light beam from the luminaire when operated or large turns off the lighting equipment, the off control method according lights sensor control nonlinear portions of the dimming characteristics of the luminaire that the energy saving effect by running can be simply and effectively exerted is known (e.g., see Patent Document 2).
特開平7−122369号公報 JP-7-122369 discloses 特開2002−260880公報 JP 2002-260880 Laid

しかし、このような消灯制御方式においては、照明器具を調光下限値で動作している状態で外光が照明器具を消灯しても十分に目標照度値に達する照度になっているときには照明器具を消灯制御するが、外光による照度は変化し易く、外光が照明器具を消灯すると目標照度値に達しない状態になると照明器具は再び調光下限値で動作するようになる。 However, the luminaire when In such off control scheme, which is the illuminance external light while operating the luminaire dimming lower limit value reaches the target irradiance value sufficiently be turned off luminaires It turned off control, but the illuminance of external light easily changes, the luminaire outside light is in a state that does not reach the target irradiance value when turning off the lighting apparatus is to operate again the dimming lower limit. このため、外光の変化によって照明器具が頻繁に消灯と調光下限値での点灯を繰り返すことになり、照明がちらついて不快感を与える虞があった。 Therefore, it will repeat the lighting at frequent off and dimming lower limit value luminaires by the external light changes, there is a risk that an uncomfortable feeling illumination flicker.

本発明は、床面の照度を測定し、予め記憶した目標照度値になるように照明器具の光束を調整して床面の照度を略一定に保つよう制御するものにおいて、照明のちらつきを防止でき、しかも、省エネルギー効果を簡便かつ有効に発揮できる照明制御装置を提供する。 The present invention, in what measure the illuminance of the floor is controlled so as to maintain and adjust the luminous flux of the lighting fixture so that the target irradiance value stored in advance the illuminance of the floor surface substantially constant, preventing the flicker of illumination can, moreover, to provide a lighting control device for the energy saving effect can be simply and effectively achieved.

請求項1記載の発明は、周囲の明るさを検出する明かり検出手段を用いて床面の照度を測定し、予め記憶した目標照度値になるように照明器具の光束を調整して床面の照度を略一定に保つよう制御する照明制御装置において、目標照度値設定時および現点灯時における照度と調光度合の関系から、外光照度値を算出する外光照度値算出手段と、この算出手段で算出した外光照度値から照明器具をある調光度で点灯したときの照度値を減算する減算手段と、この減算手段にて減算した結果の照度値が目標照度値よりも大きい場合に照明器具を消灯制御する消灯制御手段とを備えたものにある。 First aspect of the present invention, the illuminance of the floor was measured using the lights detection means for detecting the ambient brightness of the floor by adjusting the luminous flux of the lighting fixture so that the target irradiance value stored in advance a lighting control device for controlling so as to maintain the illuminance substantially constant from Seki based illumination and dimming degree in the target intensity value setting and current lit, and the external light illuminance value calculating means for calculating the external light illuminance value, the calculating means subtracting means for subtracting the luminance value when lit in the calculated external light illuminance value at a certain dimming a luminaire, the luminaire when the illuminance value of the result of subtraction by the subtracting means is greater than the target illuminance value in that a off control means for turning off control.
請求項2記載の発明は、請求項1記載の照明制御装置において、減算手段が外光照度値から減算する照度値を決める照明器具のある調光度を、10〜20%程度の調光度に設定したことにある。 According to a second aspect of the invention, the lighting control device according to claim 1, wherein the subtraction means certain dimming degree of luminaires for determining the intensity value to be subtracted from the external light illuminance value was set to about 10-20% dimming degree It lies in the fact.

請求項3記載の発明は、周囲の明るさを検出する明かり検出手段を用いて床面の照度を測定し、予め記憶した目標照度値になるように照明器具の光束を調整して床面の照度を略一定に保つよう制御する照明制御装置において、目標照度値設定時および現点灯時における照度と調光度合の関系から、外光照度値を算出する外光照度値算出手段と、この算出手段で算出した外光照度値が、目標照度値よりも高く設定した消灯照度値よりも大きい場合に照明器具を消灯制御する消灯制御手段とを備えたことにある。 According to a third aspect of the invention, the illuminance of the floor was measured using the lights detection means for detecting the ambient brightness of the floor by adjusting the luminous flux of the lighting fixture so that the target irradiance value stored in advance a lighting control device for controlling so as to maintain the illuminance substantially constant from Seki based illumination and dimming degree in the target intensity value setting and current lit, and the external light illuminance value calculating means for calculating the external light illuminance value, the calculating means external light illuminance value calculated in is in that a off control means for turning off control of the lighting fixture is greater than off illuminance value set higher than the target intensity value.
請求項4記載の発明は、請求項3記載の照明制御装置において、消灯照度値を外部信号によって設定することにある。 The invention of claim 4, wherein, in the lighting control device according to claim 3, is to set the off illumination value by an external signal.

請求項5記載の発明は、周囲の明るさを検出する明かり検出手段を用いて床面の照度を測定し、予め記憶した目標照度値になるように照明器具の光束を調整して床面の照度を略一定に保つよう制御する照明制御装置において、目標照度値設定時および現点灯時における照度と調光度合の関系から、外光照度値を算出する外光照度値算出手段と、この算出手段で算出した外光照度値が目標照度値よりも大きい状態が予め設定した所定時間継続した場合に照明器具を消灯制御する消灯制御手段とを備えたことにある。 According to a fifth aspect of the invention, the illuminance of the floor was measured using the lights detection means for detecting the ambient brightness of the floor by adjusting the luminous flux of the lighting fixture so that the target irradiance value stored in advance a lighting control device for controlling so as to maintain the illuminance substantially constant from Seki based illumination and dimming degree in the target intensity value setting and current lit, and the external light illuminance value calculating means for calculating the external light illuminance value, the calculating means in in the calculated external light illuminance value is a turn off control unit is greater status than the target irradiance value to turn off control lighting fixture when continues for a predetermined preset time.

請求項6記載の発明は、周囲の明るさを検出する明かり検出手段を用いて床面の照度を測定し、予め記憶した目標照度値になるように照明器具の光束を調整して床面の照度を略一定に保つよう制御する照明制御装置において、目標照度値設定時および現点灯時における照度と調光度合の関系から、外光照度値を算出する外光照度値算出手段と、この算出手段で算出した外光照度値が目標照度値よりも大きい場合に照明器具を消灯制御する消灯制御手段と、この消灯制御手段による照明器具の消灯制御後、外光照度値の低下により照明器具の再点灯が行われた場合は、予め設定した所定時間照明器具の再消灯を禁止する消灯禁止制御手段を備えたことにある。 According to a sixth aspect of the invention, the illuminance of the floor was measured using the lights detection means for detecting the ambient brightness of the floor by adjusting the luminous flux of the lighting fixture so that the target irradiance value stored in advance a lighting control device for controlling so as to maintain the illuminance substantially constant from Seki based illumination and dimming degree in the target intensity value setting and current lit, and the external light illuminance value calculating means for calculating the external light illuminance value, the calculating means and off control means for the external light illuminance value calculated in turns off control lighting fixtures is greater than the target intensity value, after turning off control of the luminaire according to this off the control unit, the re-lighting of the luminaire by a reduction of the external light illuminance value If made, it lies in having the off prohibition control means for prohibiting re-off for a predetermined time luminaire preset.
請求項7記載の発明は、請求項5又は6記載の照明制御装置において、所定時間を外部信号によって設定することにある。 The invention of claim 7, wherein, in the lighting control apparatus according to claim 5 or 6, is to set by an external signal for a predetermined time.

各請求項記載の発明によれば、床面の照度を測定し、予め記憶した目標照度値になるように照明器具の光束を調整して床面の照度を略一定に保つよう制御するものにおいて、照明のちらつきを防止でき、しかも、省エネルギー効果を簡便かつ有効に発揮できる。 According to the invention described in the claims, in which measuring the illuminance of the floor surface is controlled to maintain and adjust the luminous flux of the lighting fixture so that the target irradiance value stored in advance the illuminance of the floor substantially constant prevents flickering of illumination, moreover, it can be simply and effectively exhibit the energy saving effect.

請求項1及び2記載の発明によれば、さらに、外光照度値からの照度値の減算を調光度で設定しているので、反射率の高い部屋のように僅かの調光変化で大きく照度が変化する環境に適し、確実に照明のちらつきを防止できる。 According to the invention of claim 1 and 2, further, since the sets in subtracting the dimming degree of the illuminance value of the external light illuminance value greater illuminance just dimming changes as highly reflective room suitable changing environment, thereby preventing flickering of reliably lighting.

請求項3記載の発明によれば、さらに、反射率の低い部屋のように調光変化に対して照度が大きく変化しない環境に適し、確実に照明のちらつきを防止できる。 According to the third aspect of the present invention, further, suitable for the environment illuminance does not vary significantly with respect to the dimmer changes as low reflectance room prevents flickering of reliably lighting.

以下、本発明の実施の形態を、図面を参照して説明する。 Hereinafter, the embodiments of the present invention will be described with reference to the drawings.
(第1の実施の形態) (First Embodiment)
図1に示すように、天井1に照明器具2及び明かり検出手段である照度センサ3を埋設している。 As shown in FIG. 1, it is buried illuminance sensor 3 is a luminaire 2 and lamp detecting means on the ceiling 1. 前記照明器具2は床面4に向かって光を照射するように配置されている。 The luminaire 2 is arranged so as to irradiate light toward the floor 4. また、部屋には窓を介して太陽光等の外光が入り込むようになっている。 In addition, the room so that the external light such as sunlight enters through the window. そして、床面4からの反射光を前記照度センサ3で検出し、床面4の照度を検出するようになっている。 Then, the reflected light is detected from the floor 4 by the illuminance sensor 3, and detects the illuminance of the floor 4.

前記照度センサ3からの照度検出信号を制御装置5に供給している。 And it supplies the illuminance detection signal from the illuminance sensor 3 to the control device 5. 前記制御装置5は、照度センサ3からの照度検出信号により床面4の照度が略一定になるように前記照明器具2を消灯、全灯も含めて調光制御するようになっている。 The control unit 5, the illuminance of the floor 4 is off the luminaire 2 so as to be approximately constant, so that the entire lighting also controls including dimming by the illuminance detection signal from the illuminance sensor 3.

前記制御装置5は、図2に示すように、マイクロプロセッサ11、メモリ12、A/D変換機能付き入力ポート13及び照明インターフェース14を備え、前記照度センサ3からの照度検出信号を入力ポート13でデジタル化し、これをマイクロプロセッサ11が取込んみ、メモリ12に予め記憶してある目標照度値Lpやある調光度、例えば、調光度10%で前記照明器具2を調光したときの床面4の照度値Lnを使用して演算を行い、照明インターフェース14から前記照明器具2にこの照明器具2を消灯、全灯も含めて調光制御する調光信号を出力するようになっている。 The control device 5, as shown in FIG. 2, the microprocessor 11 includes a memory 12, A / D conversion function input port 13 and the illumination interface 14, the illuminance detection signal from the illuminance sensor 3 at the input port 13 digitized, viewed captures and this microprocessor 11, floor 4 when the dimming target irradiance value Lp and certain dimming degree, for example, 10% dimming the lighting fixture 2 which is previously stored in the memory 12 of it performs calculation using the illuminance value Ln, so that the this lighting fixture 2 from the illumination interface 14 to the luminaire 2 off, and outputs the dimming signal for controlling dimming, including all lighting.

前記メモリ12に予め記憶するある調光度は、例えば、リモートコントローラの操作等によって外部信号により設定するようにしてもよい。 There dimming for previously storing in the memory 12, for example, it may be set by an external signal by the remote controller operation or the like. このようにすれば、この調光度を可変することができる。 Thus, it is possible to vary the dimming degree. すなわち、照度値Lnを得る調光度は10%に限られるものではなく、例えば、10%から20%の範囲で可変することもできる。 That is, dimming obtain illuminance value Ln is not limited to 10%, for example, it can be varied within a range of 10% to 20%. なお、ある調光度は10%から20%の範囲くらいが望ましいが、環境によってはこの範囲以外であってもかまわない。 Although there dimming degree is much desirable range of 10% to 20%, it may be other than this range depending on the environment.

前記マイクロプロセッサ11は、プログラムに基づいて図3に示す照明制御を行うようになっている。 The microprocessor 11 is adapted to perform the lighting control shown in FIG. 3 based on the program. すなわち、S1にて、入力ポート13から照度検出データを取得すると、S2にて、照明器具2が点灯中か否かをチェックし、点灯中であれば、S3にて、照度検出データから得た測定照度値Lmと前記メモリ12に記憶されている目標照度値Lpとを比較する。 That is, in S1, when acquiring the illuminance detection data from the input port 13, at S2, and checks whether the luminaire 2 or lit, if lit, at S3, were obtained from the illuminance detection data comparing the target irradiance value Lp that the measured illuminance value Lm stored in the memory 12. すなわち、S4にて、Lm>Lpか否かを判断する。 That is, at S4, it is determined whether Lm> Lp.

Lm<Lpであれば、S5にて、照明器具2の出力を増加させる調光信号を照明器具2に出力し、S1の処理へ戻る。 If Lm <Lp, at S5, and outputs the dimming signal for increasing the output of the luminaire 2 luminaire 2, the process returns to S1. なお、Lm=Lpの場合は同一の調光制御を維持する。 In the case of Lm = Lp maintain the same dimming control. しかし、Lm>Lpであれば、続いて、S6にて、調光制御は下限値で行っているか否かを判断する。 However, if Lm> Lp, subsequently, at S6, the dimming control determines whether performed by the lower limit. これは、放電ランプをインバータで制御する場合、例えば全点灯(100%点灯)から25%点灯くらいまでは連続的に調光制御できるが、25%を下回ると制御ができなくなり、一挙に消灯状態となる。 This, in the case of controlling the discharge lamp by the inverter, for example from full lighting (100% lighting) to about 25% lit can be controlled continuously dimming, can not control the below 25%, once the off state to become. このときの25%が調光下限値となる。 The 25% dimming lower limit value at this time. 調光制御を下限値で行っていなければ、S7にて、照明器具2の出力を減少させる調光信号を照明器具2に出力し、S1の処理へ戻る。 If not done in the dimming control lower limit, at S7, the output is to the dimming signal reduces the output of the luminaire 2 luminaire 2, the process returns to S1.

S2にて照明器具2が消灯中になっていることが判断され、また、S6にて調光制御が下限値で行われていることが判断されると、S8にて、外光照度値Lsを算出する。 S2 luminaire 2 is judged that it is in the Off at, also, when the dimming control at S6 it is determined that taking place in the lower limit, at S8, the external light illuminance value Ls calculate. 照明器具2が消灯中であれば測定照度値Lmがそのまま外光照度値Lsになる。 Measured illuminance value Lm if the luminaire 2 is being turned off is the external light illuminance value Ls intact. また、照明器具2が調光下限値で点灯している場合は、目標照度値Lpの設定時および現点灯時における照度と調光度合の関系から外光照度値Lsを算出する。 Also, if the luminaire 2 is lit at the dimming lower limit, it calculates the external light illuminance value Ls from Seki system illumination and dimming degree in the setting time and the current lit target illuminance value Lp. すなわち、目標照度値Lpの設定時は外光を全く加味していないので照明器具2のみによる照度値が得られる。 That is, when setting the target irradiance value Lp illuminance value only by luminaires 2 because no consideration of external light at all can be obtained. 従って、外光を全く加味せずに照明器具2を調光下限値で点灯したときの照度値をLaとすると、外光を加味したときの測定照度値Lmから照度値Laを減算することで外光照度値Lsが得られる。 Therefore, when the illuminance value when lighting the lighting fixture 2 in dimming lower limit values ​​without taking into account the external light completely and La, by the measured illuminance value Lm upon consideration of external light subtracting the intensity value La the external light illuminance value Ls is obtained.

続いて、S9にて、前記メモリ12から調光度10%で調光したときの照度値Lnを読み出し、外光照度値Lsから照度値Lnを減算して補正照度値Lxを算出する。 Subsequently, at S9, it reads the illuminance value Ln upon the memory dimmed by 12 color dimming degree 10%, to calculate the corrected intensity values ​​Lx from the external light illuminance value Ls by subtracting the intensity value Ln. そして、S10にて、Lx>Lpかをチェックし、Lx>Lpであれば、S11にて、照明器具2が点灯中か否かを判断し、点灯中であれば、S12にて、照明器具2を消灯制御し、S1の処理へ戻る。 Then, in S10, checks whether Lx> Lp, if Lx> Lp, at S11, it is determined whether or not the lighting fixture 2 or lit, if lit, at S12, the luminaire 2 was off control, the process returns to S1. また、消灯中であれば、そのままS1の処理へ戻る。 In addition, if it is Off, the process returns to the processing of S1.

また、Lx≦Lpであれば、S13にて、照明器具2が消灯中か否かを判断し、消灯中であれば、S14にて、測定照度値Lmが目標照度値Lp以下になったか否かをチェックし、目標照度値Lp以下になっていれば、S15にて、照明器具2を調光下限値で点灯制御し、S1の処理へ戻る。 Further, if Lx ≦ Lp at S13, it is determined whether or not the lighting fixture 2 or Off, if Off at S14, whether measured illuminance value Lm becomes less than the target illuminance value Lp whether or checked, if equal to or less than the target illuminance value Lp, at S15, the lighting control of the lighting fixture 2 in the dimming lower limit, the process returns to S1. また、測定照度値Lmが目標照度値Lpを越えていれば、そのままS1の処理へ戻る。 The measurement illuminance value Lm is if exceeds the target irradiance value Lp, returns as it is to the S1 treatment.

このような構成において、例えば、照明器具2のみで全灯したときの床面4の照度が800ルックスで目標照度値Lpが600ルックスであった場合において、8時から19時において、外光のみによる外光照度値Lsが図4のグラフg1に示すように変化したとすると、照明器具2の調光度合は図4のグラフg2に示すように変化する。 In such a configuration, for example, in the case the target illuminance value Lp illuminance of the floor surface 4 in 800 looks when lit all only luminaires 2 was 600 lux, at 19 o'clock 8, the external light only the external light illuminance value Ls by the assuming that changes as shown in the graph g1 in FIG. 4, the dimming degree of the luminaire 2 changes as shown in the graph g2 in Fig. なお、照明器具2の調光下限値は25%である。 Incidentally, the dimming lower limit of the luminaire 2 is 25%. これにより、床面4の照度値、すなわち、測定照度値Lmは図4のグラフg3に示すように、略600ルックスを維持するように変化する。 Thus, the illuminance value of the floor surface 4, i.e., measured illuminance value Lm, as shown in the graph g3 in FIG. 4, changes so as to maintain a substantially 600 lux.

このような制御において、外光量が比較的多い場合、照明器具2は調光下限値で点灯制御されるか消灯制御される。 In this control, when external light quantity is relatively large, the luminaire 2 is controlled off either lighting control dimming lower limit. しかし、外光は雲の影響や人が窓の側を通過するなどの影響によって変化し易く、このため、外光による床面4の変化は大きい。 However, the external light is easy to change by the influence of such effects and human cloud passes by the window, and therefore, the change of the floor surface 4 due to external light is large. 従って、外光のみで目標照度値Lpの600ルックスが得られると照明器具2を消灯し、外光のみの照度値Lsが目標照度値Lpよりも低下すると照明器具2を点灯するという制御を行った場合、照明器具2が外光の変化によって頻繁に点灯と消灯を繰り返すという問題が発生する。 Thus, turns off the lighting fixture 2 only external light is 600 lux of target irradiance value Lp is obtained, the control of the illuminance value Ls of the external light only turns on the lighting fixture 2 and lower than the target irradiance value Lp performed and if, a problem that the lighting fixture 2 is repeated off frequently lit by a change in external light is generated.

これに対し、この実施の形態では、照明器具2を調光下限値で点灯制御している状態では外光のみによる照度値Lsと目標照度値Lpとをそのまま比較せずに、外光照度値Lsから、調光度10%で調光したときの照度値Lnを減算して補正照度値Lxを算出し、この補正照度値Lxと目標照度値Lpを比較するようにしている。 In contrast, in this embodiment, rather it was compared with the illuminance value Ls and the target illuminance value Lp by only the external light in the state that lighting control lighting fixtures 2 at dimming lower limit value, the external light illuminance value Ls from subtracts the intensity value Ln when the dimming with 10% dimming calculates a correction luminance value Lx, it is to compare the corrected intensity value Lx and the target illuminance value Lp.

従って、照度値Lnが例えば100ルックスであると、外光照度値Lsが目標照度値Lpを上回る650ルックスあっても補正照度値Lxが550ルックスと目標照度値Lpよりも低いので、照明器具2は調光下限値で点灯し続けることになる。 Therefore, when the illuminance value Ln is 100 lux for example, since the external light illuminance value Ls is corrected illuminance value Lx even 650 looks above the target irradiance value Lp is lower than 550 lux and a target illuminance value Lp, luminaires 2 It will continue to light up with the dimming lower limit. そして、このときの床面4の照度値は、照明器具2が調光下限値(25%)で点灯したときの床面4の照度値を250ルックスとすると、(250+650)ルックス、すなわち、900ルックスとなる。 Then, the illuminance value of the floor surface 4 at this time, when the illuminance value of the floor surface 4 when the lighting luminaires 2 dimming lower limit (25%) and 250 lux, (250 + 650) looks, i.e., 900 the looks.

そして、補正照度値Lxが目標照度値Lpよりも大きくなると、すなわち、外光照度値Lsが700ルックス以上になると、そのときに照明器具2は消灯制御される。 The correction intensity value Lx is becomes greater than the target illuminance value Lp, i.e., when the external light illuminance value Ls is equal to or greater than 700 lux, the lighting fixtures 2 at that time is turned off controlled. そして、一旦消灯された照明器具2が再度点灯する場合は外光照度値Lsが目標照度値Lpの600ルックス以下にならなければならないため、このため、外光が600ルックスから700ルックスの範囲内で変化している限りは照明器具2が点灯と消灯を繰り返すことはない。 When once it turned off luminaire 2 again because the external light illuminance value Ls must fall below 600 lux the target irradiance value Lp, Therefore, outside light in the range from 600 lux to 700 lux as long as you change it never luminaire 2 repeatedly turning on and off.

これにより、床面4が目標照度値Lp近傍にあるときに外光の変化によって照明器具2が頻繁に点灯と消灯を繰り返すのを防止できる。 This prevents the luminaire 2 according to the change of external light when the floor 4 is near the target illuminance value Lp is repeated off the lights frequently. すなわち、照明のちらつきを防止できる。 That can prevent the flicker of illumination. しかも、外光照度値Lsが目標照度値Lpよりも十分に大きいときには照明器具2を消灯させるので、省エネルギー効果を簡便かつ有効に発揮できる。 Moreover, since the turns off the lighting fixture 2 when the external light illuminance value Ls is sufficiently larger than the target irradiance value Lp, the energy saving effect can be simply and effectively achieved. なお、外光変化が比較的大きいような環境では、照度値Lnを得る調光度を例えば20%にするなど大きくすれば良い。 In the relatively large such environments outside light changes, it may be increased such as to the obtained dimming the illumination value Ln for example, 20%.

また、目標照度値Lpと比較する補正照度値Lxを得るのに、外光照度値Lsからある調光度、例えば調光度10%〜20%程度で点灯したときの照度値Lnを減算するようにしているので、環境が反射率の高い部屋のように僅かの調光変化で大きく照度が変化する環境においては減算する照度値Lnが増加するので、このような環境にも十分に対処することができ、確実に照明のちらつきを防止できる。 Further, to obtain a corrected intensity value Lx to be compared with the target irradiance value Lp, so as to subtract the ambient light illuminance value is dimming degree from Ls, the illuminance value Ln when lit, for example, dimming degree of about 10% to 20% because there, since environment illuminance value Ln for subtracting in environments where large illuminance just dimming changes varies as highly reflective room increases, also it can sufficiently cope with such environmental prevents flickering of reliably lighting.

(第2の実施の形態) (Second Embodiment)
この実施の形態においても全体の構成及び制御装置の構成は図1及び図2と同様である。 Configuration of the whole configuration and the control device is also in this embodiment is the same as in FIGS. 異なる点はマイクロプロセッサ11による照明制御である。 Different from a lighting control by the microprocessor 11. すなわち、マイクロプロセッサ11は、プログラムに基づいて図5に示す照明制御を行うようになっている。 That is, the microprocessor 11 is adapted to perform the lighting control shown in Fig. 5 based on a program.
S21〜S28の処理は、前述した図3におけるS1〜S8の処理と同じである。 Processing S21~S28 is the same as the process of S1~S8 in FIG. 3 described above.

S22にて照明器具2が消灯中になっていることが判断され、また、S26にて調光制御が下限値で行われていることが判断されると、S28にて、外光照度値Lsを算出する。 S22 luminaire 2 is judged that it is in the Off at, also, when the dimming control at S26 it is judged that taking place in the lower limit, at S28, the external light illuminance value Ls calculate. 続いて、S29にて、外光照度値Lsとメモリ12に予め記憶してある消灯照度値Lpxと比較する。 Subsequently, at S29, it is compared with the off illuminance value Lpx previously stored in the external light illuminance value Ls and the memory 12. このときの消灯照度値Lpxは目標照度値Lpによりも照度値αだけ高く設定した値になっている。 Off illuminance value Lpx at this time is a value that was also set higher only illumination values ​​α more to target irradiance value Lp. 前記メモリ12に予め記憶する消灯照度値Lpxは、例えば、リモートコントローラの操作等によって外部信号により設定するようにしてもよい。 Off illuminance value Lpx that previously stored in the memory 12, for example, it may be set by an external signal by the remote controller operation or the like. このようにすれば、この消灯照度値Lpxを可変することができる。 Thus, it is possible to vary the off illumination values ​​Lpx.

そして、Ls>Lpxであれば、S30にて、照明器具2が点灯中か否かを判断し、点灯中であれば、S31にて、照明器具2を消灯制御し、S21の処理へ戻る。 Then, if Ls> Lpx at S30, it is determined whether or not the lighting fixture 2 or lit, if lit, at S31, turns off control lighting fixtures 2, the process returns to S21. また、消灯中であれば、そのままS21の処理へ戻る。 In addition, if it is Off, the process returns to the processing of S21. また、Ls≦Lpxであれば、S32にて、照明器具2が消灯中か否かを判断し、消灯中であれば、S33にて、測定照度値Lmが目標照度値Lp以下になったか否かをチェックし、目標照度値Lp以下になっていれば、S34にて、照明器具2を調光下限値で点灯制御し、S21の処理へ戻る。 Also, if Ls ≦ Lpx at S32, it is determined whether or not the lighting fixture 2 or Off, if Off at S33, whether measured illuminance value Lm becomes less than the target illuminance value Lp whether or checked, if equal to or less than the target illuminance value Lp, at S34, lights control lighting fixtures 2 at the dimming lower limit, the process returns to S21. また、測定照度値Lmが目標照度値Lpを越えていれば、そのままS21の処理へ戻る。 The measurement illuminance value Lm is if exceeds the target irradiance value Lp, it returns to the step S21.

このように、目標照度値Lpによりも照度値αだけ高く設定した消灯照度値Lpxを用いて外光照度値Lsと比較し、照明器具2が調光下限値で点灯しているときに外光照度値Lsが消灯照度値Lpxを越えると照明器具2を消灯制御し、その後、測定照度値Lmが目標照度値Lp以下にならなければ照明器具2を再点灯しないので、このような制御においても床面4が目標照度値Lp近傍にあるときに外光の変化によって照明器具2が頻繁に点灯と消灯を繰り返すのを防止できる。 Thus, compared with the external light illuminance value Ls by using the off illumination value Lpx even more target irradiance value Lp set high only illumination values ​​alpha, the external light illuminance value when the luminaire 2 is lit at the dimming lower limit Ls is turned off controlling a lighting fixture 2 exceeds the off illumination values ​​Lpx, then since the measurement illuminance value Lm is not re-light the lighting fixture 2 to be not less than the target illuminance value Lp, floor even in such control 4 luminaire 2 by a change in the external light when in the vicinity of the target illuminance value Lp is possible to prevent the repetition of off frequently turned. すなわち、照明のちらつきを防止できる。 That can prevent the flicker of illumination. しかも、外光照度値Lsが消灯照度値Lpxよりも大きいときには照明器具2を消灯させるので、省エネルギー効果を簡便かつ有効に発揮できる。 Moreover, since when the external light illuminance value Ls is larger than the off illuminance value Lpx turns off the lighting fixture 2 can conveniently and effectively exhibit the energy saving effect.

(第3の実施の形態) (Third Embodiment)
この実施の形態においても全体の構成及び制御装置の構成は図1及び図2と同様である。 Configuration of the whole configuration and the control device is also in this embodiment is the same as in FIGS. 異なる点はマイクロプロセッサ11による照明制御である。 Different from a lighting control by the microprocessor 11. すなわち、マイクロプロセッサ11は、プログラムに基づいて図6に示す照明制御を行うようになっている。 That is, the microprocessor 11 is adapted to perform the lighting control shown in FIG. 6 based on the program.
S41〜S48の処理は、前述した図3におけるS1〜S8の処理と同じである。 Processing S41~S48 is the same as the process of S1~S8 in FIG. 3 described above.

S42にて照明器具2が消灯中になっていることが判断され、また、S46にて調光制御が下限値で行われていることが判断されると、S48にて、外光照度値Lsを算出する。 S42 luminaire 2 is judged that it is in the Off at, also, when the dimming control at S46 it is judged that taking place in the lower limit, at S48, the external light illuminance value Ls calculate. 続いて、S49にて、外光照度値Lsとメモリ12に予め記憶してある目標照度値Lpとを比較する。 Subsequently, at S49, it is compared with the target illuminance value Lp which is previously stored in the external light illuminance value Ls and the memory 12.

そして、Ls>Lpであれば、S50にて、この状態が所定時間継続したかをチェックする。 Then, if Ls> Lp, at S50, it is checked whether this state has continued for a predetermined period of time. これは、例えば、Ls>Lpを判断するとメモリ12に設けたフラグを「1」にセットするとともに同じくメモリ12に設けたカウンタを計時動作させ、このカウンタが所定時間をカウントする前にLs≦Lpを判断するとフラグを「0」にクリアするとともにカウンタをクリアするという制御を行うことで実現される。 This, for example, Ls> when determining Lp is also operating timing counter provided in the memory 12 as well as sets a flag provided in the memory 12 to "1", Ls ≦ Lp before the counter counts a predetermined time is achieved by performing control that clears the counter is cleared to "0" to the flag judge.

Ls>Lpの状態が所定時間継続すると、続いて、S51にて、照明器具2が点灯中か否かを判断し、点灯中であれば、S52にて、照明器具2を消灯制御し、S41の処理へ戻る。 The state of ls> Lp is continued for a predetermined time period, followed by at S51, it is determined whether or not the lighting fixture 2 or lit, if lit, at S52, turns off control lighting fixtures 2, S41 Back to the processing. また、Ls>Lpの状態が所定時間継続しない場合、あるいは、所定時間継続しても既に消灯中であれば、そのままS41の処理へ戻る。 Further, when the state of Ls> Lp is not continued for the predetermined time, or, if already in unlit be continued for a predetermined time, it returns to the step S41.

また、Ls≦Lpであれば、S53にて、照明器具2が消灯中か否かを判断し、消灯中であれば、S54にて、照明器具2を調光下限値で点灯制御し、S41の処理へ戻る。 Also, if Ls ≦ Lp at S53, it is determined whether or not the lighting fixture 2 or Off, if Off at S54, and lighting control luminaires 2 dimming lower limit, S41 Back to the processing. また、照明器具2が点灯していれば、そのままS41の処理へ戻る。 The illumination instrument 2 if lit, returns directly to step S41.
前記カウンタが計時する所定時間は、例えばリモートコントローラの操作等によって外部信号により設定するようにしてもよい。 Predetermined time during which the counter is counting, for example, may be set by an external signal by the remote controller operation or the like. このようにすれば所定時間を可変することができる。 Thus it is possible to vary the predetermined time.

このように、外光照度値Lsが目標照度値Lpを越えても照明器具2を消灯させず、この状態が所定時間継続したときに照明器具2を消灯制御するようにしているので、床面4が目標照度値Lp近傍にあるときに外光の変化があってもその変化が所定時間内であれば影響を受けずに照明器具2は点灯し続けることになる。 Thus, even the external light illuminance value Ls is past the target irradiance value Lp without turning off the lighting fixture 2, this state is to be turned off controlling the lighting fixture 2 when continued for a predetermined time, the floor 4 there will be luminaires 2 that change even if a change in ambient light without being affected if it is within a predetermined time period when in the vicinity of the target irradiance value Lp continuously illuminates. 従って、外光の変化によって照明器具2が頻繁に点灯と消灯を繰り返すのを防止できる。 Therefore, it is possible to prevent the lighting fixture 2 by the external light changes repeatedly off the lights frequently. すなわち、照明のちらつきを防止できる。 That can prevent the flicker of illumination. しかも、外光照度値Lsが目標照度値Lpよりも大きい状態が所定時間継続した場合には照明器具2を消灯させるので、省エネルギー効果を簡便かつ有効に発揮できる。 Moreover, since in the case where the external light illuminance value Ls is larger than the target irradiance value Lp state continues for a predetermined time extinguishes the lighting fixture 2, the energy saving effect can be simply and effectively achieved.

(第4の実施の形態) (Fourth Embodiment)
この実施の形態においても全体の構成及び制御装置の構成は図1及び図2と同様である。 Configuration of the whole configuration and the control device is also in this embodiment is the same as in FIGS. 異なる点はマイクロプロセッサ11による照明制御である。 Different from a lighting control by the microprocessor 11. すなわち、マイクロプロセッサ11は、プログラムに基づいて図7に示す照明制御を行うようになっている。 That is, the microprocessor 11 is adapted to perform the lighting control shown in FIG. 7 based on the program.
S61〜S68の処理は、前述した図3におけるS1〜S8の処理と同じである。 Processing S61~S68 is the same as the process of S1~S8 in FIG. 3 described above.

S62にて照明器具2が消灯中になっていることが判断され、また、S66にて調光制御が下限値で行われていることが判断されると、S68にて、外光照度値Lsを算出する。 S62 luminaire 2 is judged that it is in the Off at, also, when the dimming control at S66 it is judged that taking place in the lower limit, at S68, the external light illuminance value Ls calculate. 続いて、S69にて、外光照度値Lsとメモリ12に予め記憶してある目標照度値Lpとを比較する。 Subsequently, at S69, it is compared with the target illuminance value Lp which is previously stored in the external light illuminance value Ls and the memory 12.

そして、Ls>Lpであれば、続いて、S70にて、照明器具2が点灯中か否かを判断し、点灯中であれば、S71にて、フラグFL=1か否かを判断する。 Then, if Ls> Lp, subsequently, at S70, the luminaire 2 is determining whether lit, if lit, at S71, it is determined whether the flag FL = 1 or. FL=1であれば、続いて、S72にて、点灯状態が所定時間継続したか否かをチェックする。 If FL = 1, followed by at S72, the lighting state is checked whether for the predetermined period. 点灯状態が所定時間継続していれば、S73にて、フラグFLを「0」にし、S74にて、照明器具2を消灯制御し、S61の処理へ戻る。 If the lighting condition is long continuously for a predetermined time at S73, the flag FL to "0" at S74, turns off control lighting fixtures 2, the process returns to S61. この場合も所定時間の計時動作はメモリ12に設けたカウンタによって行うことになる。 In this case timing operation also predetermined time will be carried out by the counter provided in the memory 12. また、点灯状態が所定時間継続していなければ、そのままS61の処理へ戻る。 The lighting state unless continued for a predetermined time, it returns to the step S61.

また、S71にて、FL=0を判断すると、S75にて、照明器具2を消灯制御し、S61の処理へ戻る。 Further, at S71, when it is determined FL = 0, in S75, turns off control lighting fixtures 2, the process returns to S61. また、S70にて、照明器具2が消灯中であることを判断すると、そのままS61の処理へ戻る。 Further, at S70, when the illumination fixtures 2 determines that it is being turned off, the process directly returns to the process S61. また、S69にて、Ls≦Lpを判断すると、S76にて、照明器具2が消灯中であるか否かを判断し、消灯中を判断すると、S77にて、フラグFL=1にセットし、S78にて、照明器具2を点灯制御し、S61の処理へ戻る。 Further, at S69, when it is determined Ls ≦ Lp at S76, it is determined whether the luminaire 2 is being turned off, when it is determined in off at S77, it sets the flag FL = 1, at S78, and lighting control lighting fixtures 2, the process returns to S61. また、S76にて、照明器具2が点灯中であることを判断すると、そのままS61の処理へ戻る。 Further, at S76, when the illumination fixtures 2 determines that it is lit, it returns to the step S61.
前記カウンタが計時する所定時間は、例えばリモートコントローラの操作等によって外部信号により設定するようにしてもよい。 Predetermined time during which the counter is counting, for example, may be set by an external signal by the remote controller operation or the like. このようにすれば所定時間を可変することができる。 Thus it is possible to vary the predetermined time.

このような構成においては、電源を投入して照明器具2を点灯した後、最初に外光照度値Lsが目標照度値Lpを越えたときには、フラグFL=0になっているので、S75にて照明器具2が消灯制御される。 In such a configuration, after lighting the lighting fixtures 2 on power, the first time the external light illuminance value Ls exceeds the target irradiance value Lp, since become the flag FL = 0, the lighting at S75 instrument 2 is turned off controlled. その後、外光照度値Lsが目標照度値Lp以下になることがあると、S77にてフラグFL=1にセットされ、S78にて照明器具2が点灯制御される。 Thereafter, when there is external light illuminance value Ls is equal to or less than the target illuminance value Lp, is set in the flag FL = 1 in S77, the luminaire 2 is lighting control at S78.

この状態で外光照度値Lsが目標照度値Lpを越えることがあると、照明器具2は直ちに消灯制御されることはない。 When the external light illuminance value Ls in this state may exceed target irradiance value Lp, luminaires 2 will not be immediately turned off controlled. すなわち、FL=1にセットされているので、S72にてこの状態が所定時間継続されているかが判断される。 That is, because it is set to FL = 1, if this state is continued for a predetermined time is determined by S72. そして、Ls>Lpの状態が所定時間継続されたときのみ照明器具2は消灯制御される。 Then, only the lighting fixture 2 when the state of Ls> Lp is continued for a predetermined time is turned off controlled. しかし、Ls>Lpの状態が所定時間継続されず、途中でLs≦Lpの状態が判断されるとカウンタがクリアされ、再度所定時間を計時するようになる。 However, the state of Ls> Lp is not continued for a predetermined time, the way is cleared when the state of Ls ≦ Lp is determined counter, so that counting the predetermined time again.

このように、照明器具2が再点灯されたときには、外光照度値Lsが目標照度値Lpを越えても照明器具2を消灯させず、この状態が所定時間継続したとき照明器具2が消灯制御されるので、再点灯時には床面4が目標照度値Lp近傍にあるときに外光の変化があってもその変化が所定時間内であれば影響を受けずに照明器具2は点灯し続けることになる。 Thus, when the lighting fixture 2 is re-lit, also the external light illuminance value Ls is past the target irradiance value Lp without turning off the lighting apparatus 2, the luminaire 2 is turned off control when this state continues for a predetermined time Runode, that the change even if a change in the external light when the time relighting the floor 4 is near the target intensity value Lp is the luminaires 2 unaffected if within a predetermined time remains on Become. 従って、外光の変化によって照明器具2が頻繁に点灯と消灯を繰り返すのを防止できる。 Therefore, it is possible to prevent the lighting fixture 2 by the external light changes repeatedly off the lights frequently. すなわち、照明のちらつきを防止できる。 That can prevent the flicker of illumination. しかも、外光照度値Lsが目標照度値Lpよりも大きい状態が所定時間継続した場合には再点灯した照明器具2を消灯させるので、省エネルギー効果を簡便かつ有効に発揮できる。 Moreover, in the case where the external light illuminance value Ls is larger than the target irradiance value Lp state continues for a predetermined time so turns off the lighting fixture 2 that relighting can simply and effectively exhibit the energy saving effect.

本発明の、第1の実施の形態に係る全体の構成を示す図。 Of the present invention, showing the overall configuration of the first embodiment. 同実施の形態における制御装置の構成を示すブロック図。 Block diagram showing the configuration of a control apparatus according to the embodiment. 同実施の形態における制御装置のマイクロプロセッサが行う照明制御を示す流れ図。 Flow diagram showing a lighting control microprocessor of the control apparatus in the embodiment is performed. 同実施の形態において、例えば、8時から19時までの外光照度値の変化と照明器具の調光度合及び測定照度値の変化との関係の一例を示すグラフ。 Graph in the embodiment, for example, an example of the relationship between the change in the external light illuminance value and the change of the dimming degree and measured illuminance value of the luminaire to 19 o'clock 8. 本発明の、第2の実施の形態に係る制御装置のマイクロプロセッサが行う照明制御を示す流れ図。 Of the present invention, a flow diagram showing an illumination control microprocessor of the control device according to the second embodiment is performed. 本発明の、第3の実施の形態に係る制御装置のマイクロプロセッサが行う照明制御を示す流れ図。 Of the present invention, a flow diagram showing an illumination control microprocessor of the control device according to the third embodiment is performed. 本発明の、第4の実施の形態に係る制御装置のマイクロプロセッサが行う照明制御を示す流れ図。 Of the present invention, a flow diagram showing an illumination control microprocessor of the control device according to the fourth embodiment is performed.

符号の説明 DESCRIPTION OF SYMBOLS

2…照明器具、3…照度センサ、5…制御装置、11…マイクロプロセッサ。 2 ... luminaire, 3 ... illuminance sensor, 5 ... controller, 11 ... microprocessor.

Claims (7)

  1. 周囲の明るさを検出する明かり検出手段を用いて床面の照度を測定し、予め記憶した目標照度値になるように照明器具の光束を調整して床面の照度を略一定に保つよう制御する照明制御装置において、 Using the lights detection means for detecting the ambient brightness measured illuminance of floor control to keep to adjust the luminous flux of the lighting fixture so that the target irradiance value stored in advance the illuminance of the floor substantially constant A lighting control device for,
    目標照度値設定時および現点灯時における照度と調光度合の関系から、外光照度値を算出する外光照度値算出手段と、この算出手段で算出した外光照度値から前記照明器具をある調光度で点灯したときの照度値を減算する減算手段と、この減算手段にて減算した結果の照度値が前記目標照度値よりも大きい場合に前記照明器具を消灯制御する消灯制御手段とを備えたことを特徴とする照明制御装置。 From Seki system illumination and dimming degree in the target intensity value setting and current lit, and the external light illuminance value calculating means for calculating the external light illuminance value is dimming the lighting fixture from the calculated external light illuminance value at the calculation means in a subtraction means for subtracting the luminance value when lit, the illuminance value of the result of subtraction by the subtraction means and a turn off control means for turning off controlling the luminaire is larger than the target illuminance value lighting control device according to claim.
  2. 減算手段は、外光照度値から減算する照度値を決める照明器具のある調光度を、10〜20%程度の調光度に設定したことを特徴とする請求項1記載の照明制御装置。 Subtraction means, a certain dimming degree of luminaires for determining the intensity value to be subtracted from the external light illuminance value, the lighting control device according to claim 1, wherein the set to the dimming degree 10 to 20%.
  3. 周囲の明るさを検出する明かり検出手段を用いて床面の照度を測定し、予め記憶した目標照度値になるように照明器具の光束を調整して床面の照度を略一定に保つよう制御する照明制御装置において、 Using the lights detection means for detecting the ambient brightness measured illuminance of floor control to keep to adjust the luminous flux of the lighting fixture so that the target irradiance value stored in advance the illuminance of the floor substantially constant A lighting control device for,
    目標照度値設定時および現点灯時における照度と調光度合の関系から、外光照度値を算出する外光照度値算出手段と、この算出手段で算出した外光照度値が、目標照度値よりも高く設定した消灯照度値よりも大きい場合に前記照明器具を消灯制御する消灯制御手段とを備えたことを特徴とする照明制御装置。 From Seki system illumination and dimming degree in the target intensity value setting and current lit, and the external light illuminance value calculating means for calculating the external light illuminance value, the external light illuminance value calculated by the calculation means is higher than the target illuminance value lighting control device, characterized in that the luminaire is larger than the set off illumination value and a off control means for turning off control.
  4. 消灯照度値は、外部信号によって設定することを特徴とする請求項3記載の照明制御装置。 Off illuminance value, the lighting control device according to claim 3, wherein the set by an external signal.
  5. 周囲の明るさを検出する明かり検出手段を用いて床面の照度を測定し、予め記憶した目標照度値になるように照明器具の光束を調整して床面の照度を略一定に保つよう制御する照明制御装置において、 Using the lights detection means for detecting the ambient brightness measured illuminance of floor control to keep to adjust the luminous flux of the lighting fixture so that the target irradiance value stored in advance the illuminance of the floor substantially constant A lighting control device for,
    目標照度値設定時および現点灯時における照度と調光度合の関系から、外光照度値を算出する外光照度値算出手段と、この算出手段で算出した外光照度値が前記目標照度値よりも大きい状態が予め設定した所定時間継続した場合に前記照明器具を消灯制御する消灯制御手段とを備えたことを特徴とする照明制御装置。 From Seki system illumination and dimming degree in the target intensity value setting and current lit, and the external light illuminance value calculating means for calculating the external light illuminance value is greater than the target irradiance value the external light illuminance value calculated by the calculation means state lighting control device, wherein a and a off control means for turning off controlling the luminaire when continues for a predetermined preset time.
  6. 周囲の明るさを検出する明かり検出手段を用いて床面の照度を測定し、予め記憶した目標照度値になるように照明器具の光束を調整して床面の照度を略一定に保つよう制御する照明制御装置において、 Using the lights detection means for detecting the ambient brightness measured illuminance of floor control to keep to adjust the luminous flux of the lighting fixture so that the target irradiance value stored in advance the illuminance of the floor substantially constant A lighting control device for,
    目標照度値設定時および現点灯時における照度と調光度合の関系から、外光照度値を算出する外光照度値算出手段と、この算出手段で算出した外光照度値が前記目標照度値よりも大きい場合に前記照明器具を消灯制御する消灯制御手段と、この消灯制御手段による前記照明器具の消灯制御後、外光照度値の低下により前記照明器具の再点灯が行われた場合は、予め設定した所定時間前記照明器具の再消灯を禁止する消灯禁止制御手段を備えたことを特徴とする照明制御装置。 From Seki system illumination and dimming degree in the target intensity value setting and current lit, and the external light illuminance value calculating means for calculating the external light illuminance value is greater than the target irradiance value the external light illuminance value calculated by the calculation means predetermined and off control means, after turning off control of the luminaire according to this off the control unit, if the re-lighting of the luminaire is performed by reduction of the external light illuminance value is previously set to turn off controlling the luminaire when lighting control apparatus comprising the off prohibition control means for prohibiting re-off time the luminaire.
  7. 所定時間は、外部信号によって設定することを特徴とする請求項5又は6記載の照明制御装置。 Predetermined time, the lighting control device according to claim 5 or 6, wherein the set by external signals.
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