JP2016219174A - Illumination control method, illumination control device using the same and illumination system - Google Patents

Illumination control method, illumination control device using the same and illumination system Download PDF

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JP2016219174A
JP2016219174A JP2015100889A JP2015100889A JP2016219174A JP 2016219174 A JP2016219174 A JP 2016219174A JP 2015100889 A JP2015100889 A JP 2015100889A JP 2015100889 A JP2015100889 A JP 2015100889A JP 2016219174 A JP2016219174 A JP 2016219174A
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light source
sensor
dimming
detection result
illumination
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JP6551780B2 (en
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亮介 中村
Ryosuke Nakamura
亮介 中村
松田　真二
Shinji Matsuda
真二 松田
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Panasonic Intellectual Property Management Co Ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a technique of securing brightness while reducing power consumption.SOLUTION: A first acquiring unit 58 acquires a first detection result from a first sensor 22 for executing detection processing for a direction including a floor surface. A second acquiring unit 60 acquires a second detection result from a second sensor for executing the detection processing for a direction different from the direction of the detection processing of the first sensor 22. Based on the first detection result acquired by the first acquiring unit 58 and the second detection result acquired by the second acquiring unit 60, the controller 52 controls lighting of a first light source for illuminating the direction containing the floor surface and a second light source for illuminating the direction different from the illumination direction of the first light source.SELECTED DRAWING: Figure 4

Description

本発明は、照明制御技術に関し、特に照明機器を調光制御する照明制御方法およびそれを利用した照明制御装置、照明システムに関する。   The present invention relates to a lighting control technique, and more particularly, to a lighting control method for dimming and controlling a lighting device, a lighting control device using the lighting control method, and a lighting system.

照明システムにおいて、省エネルギー化を図りながらも、照明空間全体の快適性向上を図ることが望まれている。それらを両立するために、天井に複数配設された照明装置のうち、人位置検知手段により検知された人の位置に対応する照明装置は床面に向けて光を照射し、当該照明装置に隣接した照明装置は天井面に向けて光を照射する（例えば、特許文献１参照）。   In the lighting system, it is desired to improve the comfort of the entire lighting space while saving energy. In order to make them compatible, among the lighting devices arranged on the ceiling, the lighting device corresponding to the position of the person detected by the human position detecting means irradiates light toward the floor surface, and the lighting device The adjacent lighting device irradiates light toward the ceiling surface (see, for example, Patent Document 1).

特開２０１４−７１２３号公報JP 2014-7123 A

快適性の向上は、照明空間の形状にも依存するので、床面と天井面に向けて光を照射しても快適性が向上しない場合がある。例えば、照明空間の形状によっては空間の明るさが不十分になる場合がある。そのため、照明空間の形状に依存せずに、空間の明るさを確保することが必要とされる。   The improvement in comfort depends on the shape of the lighting space, and therefore the comfort may not be improved even if light is irradiated toward the floor surface and the ceiling surface. For example, the brightness of the space may be insufficient depending on the shape of the illumination space. Therefore, it is necessary to ensure the brightness of the space without depending on the shape of the illumination space.

本発明はこうした状況に鑑みてなされたものであり、その目的は、消費電力を低減しながらも、明るさを確保する技術を提供することにある。   The present invention has been made in view of such circumstances, and an object of the present invention is to provide a technique for ensuring brightness while reducing power consumption.

上記課題を解決するために、本発明のある態様の照明制御装置は、床面を含む方向に対する検知処理を実行する第１センサから第１検知結果を取得する第１取得部と、第１センサの検知処理の方向とは異なった方向に対する検知処理を実行する第２センサから第２検知結果を取得する第２取得部と、第１取得部において取得した第１検知結果と第２取得部において取得した第２検知結果とをもとに、床面を含む方向を照明するための第１光源と、第１光源の照明の方向とは異なった方向を照明するための第２光源とを調光制御する制御部と、を備える。   In order to solve the above-described problem, a lighting control device according to an aspect of the present invention includes a first acquisition unit that acquires a first detection result from a first sensor that executes detection processing for a direction including a floor surface, and a first sensor. In the second acquisition unit that acquires the second detection result from the second sensor that executes the detection process for a direction different from the direction of the detection process, the first detection result acquired in the first acquisition unit, and the second acquisition unit Based on the acquired second detection result, a first light source for illuminating the direction including the floor surface and a second light source for illuminating a direction different from the direction of illumination of the first light source are adjusted. A control unit that performs optical control.

本発明のさらに別の態様は、照明制御方法である。この方法は、床面を含む方向に対する検知処理を実行する第１センサから第１検知結果を取得するステップと、第１センサの検知処理の方向とは異なった方向に対する検知処理を実行する第２センサから第２検知結果を取得するステップと、取得した第１検知結果と取得した第２検知結果とをもとに、床面を含む方向を照明するための第１光源と、第１光源の照明の方向とは異なった方向を照明するための第２光源とを調光制御するステップと、を備える。   Yet another embodiment of the present invention is a lighting control method. In this method, a step of acquiring a first detection result from a first sensor that executes a detection process for a direction including a floor surface, and a second process for executing a detection process for a direction different from the direction of the detection process of the first sensor. A first light source for illuminating a direction including the floor surface based on the step of acquiring the second detection result from the sensor, the acquired first detection result, and the acquired second detection result; and And dimming control of a second light source for illuminating a direction different from the direction of illumination.

本発明の別の態様は、照明システムである。この照明システムは、床面を含む方向に対する検知処理を実行する第１センサを備える照明制御装置と、照明制御装置に接続されるとともに、第１センサの検知処理の方向とは異なった方向に対する検知処理を実行する第２センサと、照明制御装置に接続されるとともに、床面を含む方向を照明するための第１光源と、照明制御装置に接続されるとともに、第１光源の照明の方向とは異なった方向を照明するための第２光源とを備える。照明制御装置は、第１センサから取得した取得した第１検知結果と第２センサから取得した第２検知結果とをもとに、第１光源と第２光源とを調光制御する。   Another aspect of the present invention is a lighting system. The lighting system includes a lighting control device including a first sensor that executes a detection process for a direction including the floor surface, and a detection for a direction different from the direction of the detection process of the first sensor while being connected to the lighting control device. A second sensor that executes processing; a first light source that is connected to the lighting control device and that illuminates a direction including the floor; and a lighting direction of the first light source that is connected to the lighting control device; Comprises a second light source for illuminating different directions. The illumination control device performs dimming control on the first light source and the second light source based on the first detection result acquired from the first sensor and the second detection result acquired from the second sensor.

なお、以上の構成要素の任意の組合せ、本発明の表現を方法、装置、システム、記録媒体、コンピュータプログラムなどの間で変換したものもまた、本発明の態様として有効である。   It should be noted that any combination of the above-described constituent elements and a conversion of the expression of the present invention between a method, an apparatus, a system, a recording medium, a computer program, etc. are also effective as an aspect of the present invention.

本発明によれば、消費電力を低減しながらも、明るさを確保できる。   According to the present invention, it is possible to ensure brightness while reducing power consumption.

本発明の実施例１に係る照明システムの構成を示す図である。It is a figure which shows the structure of the illumination system which concerns on Example 1 of this invention. 図１の照明機器の構成を示す図である。It is a figure which shows the structure of the illuminating device of FIG. 図１の第２センサの構成を示す図である。It is a figure which shows the structure of the 2nd sensor of FIG. 図１の照明制御装置の構成を示す図である。It is a figure which shows the structure of the illumination control apparatus of FIG. 図４の制御部による調光制御の概要を示す図である。It is a figure which shows the outline | summary of the light control by the control part of FIG. 図１の照明システムによる調光制御の手順を示すシーケンス図である。It is a sequence diagram which shows the procedure of the light control by the illumination system of FIG. 図４の照明制御装置による調光制御の手順を示すフローチャートである。It is a flowchart which shows the procedure of the light control by the illumination control apparatus of FIG. 本発明の実施例２に係る照明制御装置による調光制御の概要を示す図である。It is a figure which shows the outline | summary of the light control by the illumination control apparatus which concerns on Example 2 of this invention. 本発明の実施例２に係る照明システムによる調光制御の手順を示すシーケンス図である。It is a sequence diagram which shows the procedure of the light control by the illumination system which concerns on Example 2 of this invention. 本発明の実施例２に係る照明制御装置による調光制御の手順を示すフローチャートである。It is a flowchart which shows the procedure of the light control by the illumination control apparatus which concerns on Example 2 of this invention.

（実施例１）
本発明の実施例１を具体的に説明する前に、実施例１の概要を説明する。本発明の実施例１は、照明器具の照明を制御する照明システムに関する。この照明システムは、例えば、オフィスに使用されており、照明器具は天井に取り付けられた天井照明である。なお、照明システムの用途はこれに限定されない。これまでの照明システムにおける照明の設計では、照明空間全体の快適性向上を図るために、空間の輝度分布が考慮されている。例えば、人の視野角における空間の輝度分布の幾何平均値が評価指数として使用されている。この場合、幾何平均値は、照明器具のレイアウトを設計する際に決まる。一方、照明空間全体の快適性向上を図るとともに、照明器具の消費電力を低減することも望まれる。しかしながら、消費電力を低減するための制御によって、幾何平均値が維持されなくなる。そのため、照明空間全体の快適性向上と、消費電力の低減との両立は、困難である。 Example 1
Before specifically describing the first embodiment of the present invention, an outline of the first embodiment will be described. Example 1 of this invention is related with the illumination system which controls the illumination of a lighting fixture. This lighting system is used in an office, for example, and the lighting fixture is ceiling lighting attached to the ceiling. The application of the lighting system is not limited to this. In the conventional lighting design in the lighting system, the luminance distribution of the space is considered in order to improve the comfort of the entire lighting space. For example, the geometric average value of the luminance distribution of the space at the human viewing angle is used as the evaluation index. In this case, the geometric mean value is determined when designing the layout of the luminaire. On the other hand, it is also desired to improve the comfort of the entire lighting space and reduce the power consumption of the lighting fixture. However, the geometric average value is not maintained by the control for reducing the power consumption. For this reason, it is difficult to improve the comfort of the entire lighting space and reduce the power consumption.

そのため、実施例１においては、これらの両立を図ることを目的とする。実施例１における照明器具には、主に床面を照明するための光源（以下、「第１光源」という）と、主に天井面や壁面を照明するための光源（以下、「第２光源」という）とが備えられる。ここで、第１光源の調光率と第２光源の調光率を同等にした場合、第１光源の消費電力は、第２光源の消費電力よりも大きくなる。また、第１光源と第２光源とは個別に調光可能である。さらに、照明システムには、人が存在するか否かを検知するためのセンサ（以下、「第１センサ」という）と、空間の輝度分布を検知するためのセンサ（以下、「第２センサ」という）とが含まれる。   Therefore, in Example 1, it aims at aiming at coexistence of these. The lighting fixture in the first embodiment includes a light source mainly for illuminating the floor surface (hereinafter referred to as “first light source”) and a light source mainly for illuminating the ceiling surface and wall surface (hereinafter referred to as “second light source”). "). Here, when the dimming rate of the first light source and the dimming rate of the second light source are equal, the power consumption of the first light source is larger than the power consumption of the second light source. Further, the first light source and the second light source can be individually dimmed. Further, the lighting system includes a sensor for detecting whether or not a person is present (hereinafter referred to as “first sensor”) and a sensor for detecting a luminance distribution in space (hereinafter referred to as “second sensor”). Is included).

照明システムは、第１段階として、第１センサが人の存在を検知したか否かに応じて、第１光源の調光率と第２光源の調光率とを調節する。これは、人が存在する場合に明るさを確保するとともに、人が不在である場合に消費電力を低減するためになされる。さらに、照明システムは、第２段階として、調節した調光率によって第１光源と第２光源とを照明した場合の空間の輝度分布を第２センサで測定し、所望の輝度分布が得られていない場合に、第２光源の調光率を再調節する。   As a first step, the lighting system adjusts the dimming rate of the first light source and the dimming rate of the second light source according to whether or not the first sensor detects the presence of a person. This is done to ensure brightness when a person is present and to reduce power consumption when the person is absent. Further, as a second stage, the illumination system measures the luminance distribution of the space when the first light source and the second light source are illuminated with the adjusted dimming rate by the second sensor, and a desired luminance distribution is obtained. If not, readjust the dimming rate of the second light source.

図１は、本発明の実施例１に係る照明システム１００の構成を示す。照明システム１００は、照明器具１０、照明制御装置１２、第２センサ１４、第１ルーバ２４、第２ルーバ２６、調光信号線３２、制御信号線３４を含む。照明器具１０は、第１光源１６、第２光源１８、第２光源２０を含み、照明制御装置１２は、第１センサ２２を含む。図示のごとく、第１センサ２２は、照明制御装置１２に備えられるが、第２センサ１４、第１光源１６、第２光源１８、第２光源２０は、照明制御装置１２の外部に備えられる。   FIG. 1 shows a configuration of an illumination system 100 according to Embodiment 1 of the present invention. The lighting system 100 includes a lighting fixture 10, a lighting control device 12, a second sensor 14, a first louver 24, a second louver 26, a dimming signal line 32, and a control signal line 34. The lighting fixture 10 includes a first light source 16, a second light source 18, and a second light source 20, and the lighting control device 12 includes a first sensor 22. As illustrated, the first sensor 22 is provided in the illumination control device 12, but the second sensor 14, the first light source 16, the second light source 18, and the second light source 20 are provided outside the illumination control device 12.

天井面２８、壁面３０、床面３６によって、オフィス等の部屋が構成されており、この部屋が前述の照明空間に相当する。ここで、天井面２８と床面３６とが対向しており、壁面３０は、少なくとも床面３６に垂直に配置されている。図１においては、天井面２８は床面３６に平行に配置されているが、平行に限定されない。照明制御装置１２は、天井面２８に設置される。また、照明制御装置１２は、第１センサ２２を備え、第１センサ２２は、床面３６を含む方向に対する検知処理を実行する。例えば、第１センサ２２は、人が存在するか、人が不在であるかを検知する。   The ceiling surface 28, the wall surface 30, and the floor surface 36 constitute a room such as an office, and this room corresponds to the aforementioned illumination space. Here, the ceiling surface 28 and the floor surface 36 face each other, and the wall surface 30 is disposed at least perpendicular to the floor surface 36. In FIG. 1, the ceiling surface 28 is arranged in parallel to the floor surface 36, but is not limited to being parallel. The illumination control device 12 is installed on the ceiling surface 28. The lighting control device 12 includes a first sensor 22, and the first sensor 22 executes a detection process for a direction including the floor surface 36. For example, the first sensor 22 detects whether a person is present or absent.

第２センサ１４は、壁面３０に設置される。このような配置のもと、第２センサ１４は、第１センサ２２の検知処理の方向とは異なった方向に対する検知処理を実行する。具体的に説明すると、第２センサ１４の検知処理の方向は、部屋に存在する人の視線方向に近くなるように設定される。人の視線方向に近くなる方向は、誘導視野として定義されており、誘導視野は、例えば、左右１００度×上下８５度に設定される。第２センサ１４は人の視線方向を覆う空間の輝度分布の検出する処理をする。また、第２センサ１４は、制御信号線３４を介して照明制御装置１２に接続され、検知結果を照明制御装置１２に送信する。   The second sensor 14 is installed on the wall surface 30. Under such an arrangement, the second sensor 14 executes a detection process for a direction different from the direction of the detection process of the first sensor 22. More specifically, the direction of the detection process of the second sensor 14 is set so as to be close to the line-of-sight direction of the person existing in the room. The direction close to the human visual line direction is defined as a guidance visual field, and the guidance visual field is set to, for example, 100 degrees left and right and 85 degrees up and down. The second sensor 14 performs processing for detecting the luminance distribution of the space covering the direction of the person's line of sight. The second sensor 14 is connected to the illumination control device 12 via the control signal line 34 and transmits the detection result to the illumination control device 12.

照明器具１０は、天井面２８に設置され、照明空間を照明する。例えば、照明器具１０は、照明制御装置１２に近接して配置される。照明器具１０は第１光源１６を含み、第１光源１６は床面３６を含む方向を照射する。床面３６を含む方向は、天井面２８から床面３６への方向を主とするが、それ以外の方向を含んでもよい。また、照明器具１０は、第２光源１８、第２光源２０も含み、第２光源１８、第２光源２０は、第１光源１６の照明の方向とは異なった方向を照明する。第１光源１６の照明の方向とは異なった方向は、例えば、天井面２８、壁面３０への方向を示す。ここでは、第２光源１８から照射された光は、第１ルーバ２４で反射されることによって、天井面２８、壁面３０を照明し、第２光源２０から照射された光は、第２ルーバ２６で反射されることによって、天井面２８、壁面３０を照明する。第１ルーバ２４、第２ルーバ２６は、天井面２８に対する角度を自由に調節可能な反射板である。なお、第２光源１８と第２光源２０のうちの一方だけが含まれてもよい。   The luminaire 10 is installed on the ceiling surface 28 and illuminates the illumination space. For example, the lighting fixture 10 is disposed in proximity to the lighting control device 12. The lighting fixture 10 includes a first light source 16, and the first light source 16 irradiates a direction including the floor surface 36. The direction including the floor surface 36 is mainly the direction from the ceiling surface 28 to the floor surface 36, but may include other directions. The lighting fixture 10 also includes a second light source 18 and a second light source 20, and the second light source 18 and the second light source 20 illuminate a direction different from the direction of illumination of the first light source 16. The direction different from the illumination direction of the first light source 16 indicates, for example, a direction toward the ceiling surface 28 and the wall surface 30. Here, the light emitted from the second light source 18 is reflected by the first louver 24 to illuminate the ceiling surface 28 and the wall surface 30, and the light emitted from the second light source 20 is emitted from the second louver 26. The ceiling surface 28 and the wall surface 30 are illuminated by being reflected by. The first louver 24 and the second louver 26 are reflectors that can freely adjust the angle with respect to the ceiling surface 28. Only one of the second light source 18 and the second light source 20 may be included.

照明器具１０は、調光信号線３２を介して照明制御装置１２に接続される。そのため、第１光源１６、第２光源１８、第２光源２０は、照明制御装置１２に接続される。なお、照明器具１０には、制御信号線３４が接続されないので、照明器具１０は、第２センサ１４に接続されない。照明制御装置１２は、第１センサ２２から取得した取得した検知結果（以下、「第１検知結果」という）と第２センサ１４から取得した検知結果（以下、「第２検知結果」という）とをもとに、第１光源１６と第２光源１８とを調光制御する。調光制御については、後述するが、第１光源１６と第２光源１８とは個別に調光制御可能である。   The lighting fixture 10 is connected to the lighting control device 12 via the dimming signal line 32. Therefore, the first light source 16, the second light source 18, and the second light source 20 are connected to the illumination control device 12. Since the control signal line 34 is not connected to the lighting fixture 10, the lighting fixture 10 is not connected to the second sensor 14. The illumination control device 12 includes the acquired detection result acquired from the first sensor 22 (hereinafter referred to as “first detection result”) and the detection result acquired from the second sensor 14 (hereinafter referred to as “second detection result”). Based on the above, dimming control is performed on the first light source 16 and the second light source 18. Although dimming control will be described later, the first light source 16 and the second light source 18 can be dimmed individually.

図２は、照明器具１０の構成を示す。照明器具１０は、通信部４０、点灯制御部４２、記憶部４４、第１光源１６、第２光源１８、第２光源２０を含む。第１光源１６、第２光源１８、第２光源２０は、例えば、ＬＥＤ（Ｌｉｇｈｔ Ｅｍｉｔｔｉｎｇ Ｄｉｏｄｅ）、蛍光灯などである。前述のごとく、第１光源１６の調光率と第２光源１８、第２光源２０の調光率を同等にした場合、第１光源１６の消費電力は、第２光源１８、第２光源２０の消費電力よりも大きい。   FIG. 2 shows the configuration of the luminaire 10. The lighting fixture 10 includes a communication unit 40, a lighting control unit 42, a storage unit 44, a first light source 16, a second light source 18, and a second light source 20. The 1st light source 16, the 2nd light source 18, and the 2nd light source 20 are LED (Light Emitting Diode), a fluorescent lamp, etc., for example. As described above, when the dimming rate of the first light source 16 and the dimming rates of the second light source 18 and the second light source 20 are made equal, the power consumption of the first light source 16 is the second light source 18 and the second light source 20. Greater than the power consumption.

点灯制御部４２は、第１光源１６、第２光源１８、第２光源２０の点灯状態を制御する。点灯制御部４２は、後述の通信部４０が照明制御装置１２から取得する信号であって、かつ調光率が示された信号（以下、「調光信号」という）にしたがって、点灯・消灯の切替制御、指示された調光率での調光制御などを実行する。ここで、調光信号において、第１光源１６、第２光源１８、第２光源２０に対する調光率が別々に示されていてもよいし、第２光源１８、第２光源２０に対する調光率が共通して示され、かつそれらとは別に第１光源１６に対する調光率が示されていてもよい。つまり、点灯制御部４２は、照明制御装置１２からの調光信号に含まれる調光率で、第１光源１６、第２光源１８、第２光源２０を調光点灯させる。調光率は、全点灯を１００％として全点灯に対する明るさの割合を表す値であり、例えば５〜１００％の範囲で調節可能である。記憶部４４は、固有のアドレスを記憶する。通信部４０は、調光信号線３２に接続されており、照明制御装置１２との間で通信を実行する。   The lighting control unit 42 controls the lighting states of the first light source 16, the second light source 18, and the second light source 20. The lighting control unit 42 is a signal acquired by the communication unit 40 to be described later from the lighting control device 12 and is turned on / off in accordance with a signal indicating a dimming rate (hereinafter referred to as a “dimming signal”). Switch control, dimming control at the instructed dimming rate, and the like are executed. Here, in the dimming signal, the dimming rates for the first light source 16, the second light source 18, and the second light source 20 may be shown separately, or the dimming rates for the second light source 18 and the second light source 20. May be shown in common and the dimming rate for the first light source 16 may be shown separately. That is, the lighting control unit 42 performs dimming lighting of the first light source 16, the second light source 18, and the second light source 20 at a dimming rate included in the dimming signal from the illumination control device 12. The dimming rate is a value that represents the ratio of the brightness with respect to the total lighting when the total lighting is 100%, and can be adjusted within a range of, for example, 5 to 100%. The storage unit 44 stores a unique address. The communication unit 40 is connected to the dimming signal line 32 and performs communication with the illumination control device 12.

この構成は、ハードウエア的には、任意のコンピュータのＣＰＵ、メモリ、その他のＬＳＩで実現でき、ソフトウエア的にはメモリにロードされたプログラムなどによって実現されるが、ここではそれらの連携によって実現される機能ブロックを描いている。したがって、これらの機能ブロックがハードウエアのみ、ハードウエアとソフトウエアの組合せによっていろいろな形で実現できることは、当業者には理解されるところである。   This configuration can be realized in terms of hardware by a CPU, memory, or other LSI of any computer, and in terms of software, it can be realized by a program loaded in the memory, but here it is realized by their cooperation. Draw functional blocks. Accordingly, those skilled in the art will understand that these functional blocks can be realized in various forms only by hardware, or by a combination of hardware and software.

図３は、第２センサ１４の構成を示す。第２センサ１４は、通信部８０、制御部８２、画像センサ８４、画像処理部８６を含む。   FIG. 3 shows the configuration of the second sensor 14. The second sensor 14 includes a communication unit 80, a control unit 82, an image sensor 84, and an image processing unit 86.

画像センサ８４は、複数の受光素子が二次元配列された固体撮像素子と、各受光素子の出力値をアナログデータからデジタルデータに変換する変換部と、変換されたデジタル値を増幅する増幅部とを有する。画像センサ８４は、固体撮像素子にて照明空間の撮像画像を生成し、この撮像画像を変換部にてデジタルデータに変換し、増幅部にて固定値の増幅率で増幅してから、撮像画像の画像データとして画像処理部８６に順次出力する。固定撮像素子は、例えば、ＣＣＤ（Ｃｈａｒｇｅ Ｃｏｕｐｌｅｄ Ｄｅｖｉｃｅ）、ＣＭＯＳ（Ｃｏｍｐｌｅｍｅｎｔａｒｙ Ｍｅｔａｌ Ｏｘｉｄｅ Ｓｅｍｉｃｏｎｄｕｃｔｏｒ）である。各受光素子が撮像画像の各画素に対応するので、各受光素子の出力値が撮像画像の画素値となる。そのため、受光素子での受光量が大きくなるほど対応する画素の画素値は大きくなる。   The image sensor 84 includes a solid-state imaging device in which a plurality of light receiving elements are two-dimensionally arranged, a conversion unit that converts an output value of each light receiving element from analog data to digital data, an amplification unit that amplifies the converted digital value, and Have The image sensor 84 generates a captured image of the illumination space with a solid-state image sensor, converts the captured image into digital data with a conversion unit, amplifies the amplification unit with a fixed amplification factor, and then captures the captured image. Are sequentially output to the image processing unit 86 as image data. The fixed imaging device is, for example, a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). Since each light receiving element corresponds to each pixel of the captured image, the output value of each light receiving element becomes the pixel value of the captured image. For this reason, the pixel value of the corresponding pixel increases as the amount of light received by the light receiving element increases.

画像処理部８６は、画像センサ８４から撮像画像の画像データを順次入力する。撮像画像の画像データでは、前述の誘導視野が確保されている。画像処理部８６は、画像データの輝度値の幾何平均値を計算する。これは、照明空間の輝度分布を計測することに相当する。なお、幾何平均値の計算には公知の技術が使用されればよいので、ここでは説明を省略する。画像処理部８６は、幾何平均値を輝度値として制御部８２に順次出力する。   The image processing unit 86 sequentially inputs image data of captured images from the image sensor 84. In the image data of the captured image, the above-described guidance visual field is secured. The image processing unit 86 calculates a geometric average value of luminance values of the image data. This corresponds to measuring the luminance distribution in the illumination space. In addition, since a well-known technique should just be used for calculation of a geometric mean value, description is abbreviate | omitted here. The image processing unit 86 sequentially outputs the geometric average value as a luminance value to the control unit 82.

制御部８２は、画像処理部８６から輝度値を順次入力する。制御部８２は、通信部８０にも接続される。制御部８２は、通信部８０における通信処理を制御する。通信部８０は、制御信号線３４に接続されており、図示しない照明制御装置１２との間で通信を実行する。具体的には、通信部８０は、制御部８２からの指示にしたがって、照明制御装置１２に輝度値を順次送信する。   The control unit 82 sequentially inputs luminance values from the image processing unit 86. The control unit 82 is also connected to the communication unit 80. The control unit 82 controls communication processing in the communication unit 80. The communication unit 80 is connected to the control signal line 34 and performs communication with the illumination control device 12 (not shown). Specifically, the communication unit 80 sequentially transmits luminance values to the illumination control device 12 in accordance with instructions from the control unit 82.

図４は、照明制御装置１２の構成を示す。照明制御装置１２は、第１センサ２２、通信部５０、制御部５２を含む。通信部５０は、第１通信部５４、第２通信部５６を含み、制御部５２は、第１取得部５８、第２取得部６０、第１制御部６２、第２制御部６４を含み、第１センサ２２は、画像センサ６６、画像処理部６８、記憶部７０を含む。   FIG. 4 shows the configuration of the illumination control device 12. The illumination control device 12 includes a first sensor 22, a communication unit 50, and a control unit 52. The communication unit 50 includes a first communication unit 54 and a second communication unit 56, and the control unit 52 includes a first acquisition unit 58, a second acquisition unit 60, a first control unit 62, and a second control unit 64, The first sensor 22 includes an image sensor 66, an image processing unit 68, and a storage unit 70.

画像センサ６６は、前述の画像センサ８４と同様に構成される。しかしながら、画像センサ６６における増幅部は、ＡＧＣ（Ａｕｔｏｍａｔｉｃ Ｇａｉｎ Ｃｏｎｔｒｏｌ）回路を有する。ＡＧＣ回路は、増幅部の入力が変動する場合においても増幅部から一定の出力が得られるように、増幅部の増幅率を自動的に調整する。増幅率は、全受光素子の出力値の平均値に対する増幅部の全出力値の平均値の比率である。そのため、照明空間が比較的暗い場合でも、ＡＧＣ回路が増幅率を増加させるので、画像センサ６６は、撮像画像の適切な明るさを確保できる。   The image sensor 66 is configured similarly to the image sensor 84 described above. However, the amplification unit in the image sensor 66 includes an AGC (Automatic Gain Control) circuit. The AGC circuit automatically adjusts the amplification factor of the amplifier so that a constant output can be obtained from the amplifier even when the input of the amplifier fluctuates. The amplification factor is the ratio of the average value of all output values of the amplifying unit to the average value of output values of all the light receiving elements. Therefore, even when the illumination space is relatively dark, the AGC circuit increases the amplification factor, so that the image sensor 66 can ensure appropriate brightness of the captured image.

画像処理部６８は、画像センサ６６からの撮像画像に対して画像処理、具体的には人の存在を検知するための画像処理を実行する。なお、画像処理に先だって、画像センサ６６が、照明空間に人が存在しない状態で照明空間の画像（以下、「背景画像」という）を撮像し、記憶部７０は、撮像された背景画像を記憶している。画像処理部６８は、新たに撮像された撮像画像と背景画像との間で画素値の差分を画素ごとに計算することによって、差分画像を生成する。照明空間に人が存在している場合の差分画像の画素値の合計は、照明空間に人が存在していない場合の差分画像の画素値の合計よりも大きくなる。そこで、画像処理部６８は、予めしきい値を保持しており、差分画像の画素値の合計がしきい値よりも大きければ、照明空間に人が存在していると判定する。一方、画像処理部６８は、差分画像の画素値の合計がしきい値以下であれば、照明空間に人が不在であると判定する。なお、しきい値との比較対象となる差分画像の画素値の合計は、差分画像全体の画素値の合計であってもよく、差分画像の一部の領域の画素値の合計であってもよい。画像処理部６８は、判定結果を制御部５２に出力する。   The image processing unit 68 performs image processing on the captured image from the image sensor 66, specifically, image processing for detecting the presence of a person. Prior to image processing, the image sensor 66 captures an image of the illumination space (hereinafter referred to as “background image”) in a state where no person is present in the illumination space, and the storage unit 70 stores the captured background image. doing. The image processing unit 68 generates a difference image by calculating a pixel value difference for each pixel between the newly captured image and the background image. The sum of the pixel values of the difference image when a person is present in the illumination space is larger than the sum of the pixel values of the difference image when a person is not present in the illumination space. Therefore, the image processing unit 68 holds a threshold value in advance, and determines that there is a person in the illumination space if the sum of the pixel values of the difference image is larger than the threshold value. On the other hand, if the sum of the pixel values of the difference image is equal to or less than the threshold value, the image processing unit 68 determines that no person is present in the illumination space. Note that the sum of the pixel values of the difference image to be compared with the threshold value may be the sum of the pixel values of the entire difference image, or may be the sum of the pixel values of a part of the difference image. Good. The image processing unit 68 outputs the determination result to the control unit 52.

第１取得部５８は、画像処理部６８での判定結果を取得する。この判定結果は、第１検知結果ともいえ、それは、図１の床面３６を含む方向に対する検知処理を実行する第１センサ２２からの検知結果である。この第１検知結果には、人が存在しているか、あるいは人が不在であるかを示す情報が含まれている。第１取得部５８は、取得した第１検知結果を第１制御部６２に出力する。   The first acquisition unit 58 acquires the determination result from the image processing unit 68. This determination result can also be referred to as a first detection result, which is a detection result from the first sensor 22 that executes the detection process for the direction including the floor surface 36 of FIG. This first detection result includes information indicating whether a person is present or absent. The first acquisition unit 58 outputs the acquired first detection result to the first control unit 62.

第１制御部６２は、第１取得部５８において取得した第１検知結果をもとに、第１光源１６、第２光源１８、第２光源２０を調光制御する。まず、第１制御部６２は、第１検知結果を確認することによって、照明空間に人が存在しているか、あるいは照明空間に人が不在であるかを特定する。これに続いて、第１制御部６２は、人が存在している場合に、第１光源１６の調光率を第２光源１８、第２光源２０の調光率よりも高くし、人が不在である場合に、第１光源１６の調光率を第２光源１８、第２光源２０の調光率よりも低くする。ここでは、この処理を図５を使用しながら、さらに詳細に説明する。   The first control unit 62 performs dimming control on the first light source 16, the second light source 18, and the second light source 20 based on the first detection result acquired by the first acquisition unit 58. First, the 1st control part 62 specifies whether a person exists in an illumination space, or a person is absent in an illumination space by confirming a 1st detection result. Following this, when there is a person, the first control unit 62 makes the dimming rate of the first light source 16 higher than the dimming rate of the second light source 18 and the second light source 20, In the absence, the dimming rate of the first light source 16 is set lower than the dimming rates of the second light source 18 and the second light source 20. Here, this process will be described in more detail with reference to FIG.

図５は、制御部５２による調光制御の概要を示す。図５の横方向が時間の経過を示す。また、上段が第１検知結果の内容を示し、それは、時間の経過とともに、「人が不在」、「人が存在」、「人が不在」と変化する。中段が、第１光源１６に対する調光率を示し、下段が、第２光源１８、第２光源２０に対する調光率を示す。「人が不在」である場合、第１光源１６に対する調光率が「２５％」に設定され、第２光源１８、第２光源２０に対する調光率が「５０％」に設定され、前述のごとく、前者の方が低くされる。人が不在であれば、第１光源１６による作業用照度が不要になるので、消費電力を低減させるために、第１制御部６２は、第１光源１６の調光率を低下させる。一方、その場合、床面３６に加えて天井面２８への反射光量も低下してしまう。そこで、天井面２８の輝度を維持するために、第１制御部６２は、第２光源１８、第２光源２０の調光率を上昇させる。   FIG. 5 shows an outline of dimming control by the control unit 52. The horizontal direction in FIG. 5 shows the passage of time. Further, the upper part shows the contents of the first detection result, which changes with the passage of time as “person is absent”, “person is present”, and “person is absent”. The middle row shows the dimming rate for the first light source 16, and the lower row shows the dimming rate for the second light source 18 and the second light source 20. When “no person” is present, the dimming rate for the first light source 16 is set to “25%”, the dimming rates for the second light source 18 and the second light source 20 are set to “50%”, and In the same way, the former is lowered. If no person is present, the illuminance for work by the first light source 16 is not required, so the first control unit 62 reduces the dimming rate of the first light source 16 in order to reduce power consumption. On the other hand, in this case, the amount of light reflected to the ceiling surface 28 in addition to the floor surface 36 also decreases. Therefore, in order to maintain the brightness of the ceiling surface 28, the first control unit 62 increases the dimming rate of the second light source 18 and the second light source 20.

「人が存在」である場合、第１光源１６に対する調光率が「１００％」に設定され、第２光源１８、第２光源２０に対する調光率が「５％」に設定され、前述のごとく、前者の方が高くされる。人が存在していれば、執務者の作業に必要な照度を確保する必要があるので、第１制御部６２は、主に床面３６を制御している第１光源１６の調光率を上昇させる。その場合、高い調光率で点灯する第１光源１６の反射光が天井面２８に届くので、第２光源１８、第２光源２０の調光率を低下させても天井面２８の輝度が維持される。そこで、第１制御部６２は、第２光源１８、第２光源２０の調光率を低下させる。図４に戻る。   When “person is present”, the dimming rate for the first light source 16 is set to “100%”, and the dimming rates for the second light source 18 and the second light source 20 are set to “5%”. In the same way, the former is higher. If there is a person, it is necessary to secure the illuminance necessary for the work of the office worker, so the first control unit 62 mainly controls the dimming rate of the first light source 16 that controls the floor surface 36. Raise. In that case, since the reflected light of the first light source 16 that is lit at a high dimming rate reaches the ceiling surface 28, the luminance of the ceiling surface 28 is maintained even if the dimming rates of the second light source 18 and the second light source 20 are lowered. Is done. Therefore, the first control unit 62 reduces the dimming rate of the second light source 18 and the second light source 20. Returning to FIG.

第１通信部５４は、調光信号線３２に接続されており、図示しない照明器具１０との間で通信を実行する。具体的に説明すると、第１通信部５４は、第１制御部６２から、第１光源１６に対する調光率と、第２光源１８、第２光源２０に対する調光率を入力し、これらが含まれた調光信号を生成する。さらに、第１通信部５４は、調光信号線３２を介して照明制御装置１２に、調光信号を送信する。照明制御装置１２は、調光信号を受信すると、前述のごとく、第１光源１６、第２光源１８、第２光源２０を調光点灯させる。   The first communication unit 54 is connected to the dimming signal line 32 and performs communication with the lighting fixture 10 (not shown). More specifically, the first communication unit 54 inputs the dimming rate for the first light source 16 and the dimming rate for the second light source 18 and the second light source 20 from the first control unit 62, and these are included. A dimming signal is generated. Further, the first communication unit 54 transmits a dimming signal to the illumination control device 12 via the dimming signal line 32. When the illumination control device 12 receives the dimming signal, the first light source 16, the second light source 18, and the second light source 20 are dimmed and lit as described above.

第２通信部５６は、制御信号線３４に接続されており、図示しない第２センサ１４との間で通信を実行する。具体的に説明すると、第２通信部５６は、制御信号線３４を介して第２センサ１４からの輝度値を順次受信する。第２通信部５６は、順次受信した輝度値を制御部５２に出力する。   The second communication unit 56 is connected to the control signal line 34 and performs communication with the second sensor 14 (not shown). Specifically, the second communication unit 56 sequentially receives luminance values from the second sensor 14 via the control signal line 34. The second communication unit 56 outputs the sequentially received luminance values to the control unit 52.

第２取得部６０は、第１通信部５４が調光信号を送信した後、つまり第１制御部６２が第１光源１６、第２光源１８、第２光源２０の調光率を制御した後、第２通信部５６からの輝度値を取得する。この輝度値は、第２検知結果ともいえ、それは、第１センサ２２の検知処理の方向とは異なった方向に対する検知処理を実行する第２センサ１４からの検知結果である。なお、輝度値は、前述のごとく、輝度値の幾何平均値に相当する。第２取得部６０は、取得した第２検知結果を第２制御部６４に出力する。   After the first communication unit 54 transmits the dimming signal, that is, the first control unit 62 controls the dimming rate of the first light source 16, the second light source 18, and the second light source 20 after the first communication unit 54 transmits the dimming signal. The brightness value from the second communication unit 56 is acquired. This luminance value can also be referred to as a second detection result, which is a detection result from the second sensor 14 that executes a detection process in a direction different from the direction of the detection process of the first sensor 22. Note that the luminance value corresponds to the geometric average value of the luminance values as described above. The second acquisition unit 60 outputs the acquired second detection result to the second control unit 64.

第２制御部６４は、第１制御部６２が調光制御してから、第２取得部６０において取得した第２検知結果をもとに、第２光源１８、第２光源２０をさらに調光制御する。まず、第２制御部６４は、第２検知結果において示された輝度値を特定する。第２制御部６４は、輝度値と、予め保持したしきい値とを比較する。輝度値がしきい値よりも低い場合、第２制御部６４は、第２光源１８、第２光源２０の調光率を上昇させるように、第２光源１８、第２光源２０をさらに調光制御する。これは、空間輝度分布が予め定めた値以上になるように、第２光源１８、第２光源２０の調光率を上昇させることに相当する。   The second control unit 64 further controls the second light source 18 and the second light source 20 based on the second detection result acquired by the second acquisition unit 60 after the first control unit 62 performs dimming control. Control. First, the second control unit 64 specifies the luminance value indicated in the second detection result. The second control unit 64 compares the luminance value with a previously held threshold value. When the luminance value is lower than the threshold value, the second control unit 64 further dims the second light source 18 and the second light source 20 so as to increase the dimming rate of the second light source 18 and the second light source 20. Control. This corresponds to increasing the dimming rate of the second light source 18 and the second light source 20 so that the spatial luminance distribution is equal to or greater than a predetermined value.

その際、第２制御部６４は、第１制御部６２において決定した第１光源１６の調光率と、第２光源１８、第２光源２０の調光率との高低関係を維持するように、第２光源１８、第２光源２０をさらに調光制御する。例えば、人が存在している場合に、第２制御部６４は、第１光源１６の調光率が第２光源１８、第２光源２０の調光率よりも高くなる関係を維持しながら、第２光源１８、第２光源２０をさらに調光制御する。一方、人が不在である場合に、第２制御部６４は、第１光源１６の調光率が第２光源１８、第２光源２０の調光率よりも低くなる関係を維持しながら、第２光源１８、第２光源２０をさらに調光制御する。一方、輝度値がしきい値以上である場合、第２制御部６４は処理を実行しない。このように制御部５２は、第１取得部５８において取得した第１検知結果と第２取得部６０において取得した第２検知結果とをもとに、床面３６を含む方向を照明するための第１光源１６、第２光源１８、第２光源２０とを調光制御する。   At that time, the second control unit 64 maintains the height relationship between the dimming rate of the first light source 16 determined by the first control unit 62 and the dimming rates of the second light source 18 and the second light source 20. Further, dimming control is performed on the second light source 18 and the second light source 20. For example, when there is a person, the second control unit 64 maintains the relationship in which the dimming rate of the first light source 16 is higher than the dimming rates of the second light source 18 and the second light source 20, Dimming control is further performed on the second light source 18 and the second light source 20. On the other hand, when the person is absent, the second control unit 64 maintains the relationship in which the dimming rate of the first light source 16 is lower than the dimming rates of the second light source 18 and the second light source 20. Dimming control is further performed on the two light sources 18 and the second light source 20. On the other hand, when the luminance value is equal to or greater than the threshold value, the second control unit 64 does not execute the process. As described above, the control unit 52 illuminates the direction including the floor surface 36 based on the first detection result acquired by the first acquisition unit 58 and the second detection result acquired by the second acquisition unit 60. Dimming control is performed on the first light source 16, the second light source 18, and the second light source 20.

第１通信部５４は、第２制御部６４から、第２光源１８、第２光源２０に対する調光率を入力し、これが含まれた調光信号を生成する。さらに、第１通信部５４は、調光信号線３２を介して照明制御装置１２に、調光信号を送信する。照明制御装置１２は、調光信号を受信すると、第２光源１８、第２光源２０の調光率を制御する。   The 1st communication part 54 inputs the dimming rate with respect to the 2nd light source 18 and the 2nd light source 20 from the 2nd control part 64, and produces | generates the dimming signal containing this. Further, the first communication unit 54 transmits a dimming signal to the illumination control device 12 via the dimming signal line 32. When the illumination control device 12 receives the dimming signal, it controls the dimming rates of the second light source 18 and the second light source 20.

以上の構成による照明システム１００の動作を説明する。図６は、照明システム１００による調光制御の手順を示すシーケンス図である。照明制御装置１２は、人の検知処理を実行する（Ｓ１０）。照明制御装置１２は、調光制御を実行する（Ｓ１２）。照明制御装置１２は、第１光源１６に調光率を送信し（Ｓ１４）、第２光源１８、第２光源２０にも調光率を送信する（Ｓ１６）。第１光源１６は、調光率にしたがって点灯し（Ｓ１８）、第２光源１８、第２光源２０は、調光率にしたがって点灯する（Ｓ２０）。第２センサ１４は、輝度値を導出する（Ｓ２２）。第２センサ１４は、照明制御装置１２に輝度値を送信する（Ｓ２４）。照明制御装置１２は、調光制御を実行する（Ｓ２６）。照明制御装置１２は、第２光源１８、第２光源２０に調光率を送信する（Ｓ２８）。第２光源１８、第２光源２０は、調光率にしたがって点灯する（Ｓ３０）。   The operation of the illumination system 100 having the above configuration will be described. FIG. 6 is a sequence diagram illustrating a procedure of dimming control by the illumination system 100. The illumination control device 12 performs a human detection process (S10). The illumination control device 12 performs dimming control (S12). The illumination control device 12 transmits the dimming rate to the first light source 16 (S14), and also transmits the dimming rate to the second light source 18 and the second light source 20 (S16). The first light source 16 is turned on according to the dimming rate (S18), and the second light source 18 and the second light source 20 are turned on according to the dimming rate (S20). The second sensor 14 derives a luminance value (S22). The second sensor 14 transmits a luminance value to the illumination control device 12 (S24). The illumination control device 12 performs dimming control (S26). The illumination control device 12 transmits the dimming rate to the second light source 18 and the second light source 20 (S28). The second light source 18 and the second light source 20 are turned on according to the dimming rate (S30).

図７は、照明制御装置１２による調光制御の手順を示すフローチャートである。第１検知結果において人が存在する場合（Ｓ４０のＹ）、第１制御部６２は、第１光源１６の調光率＞第２光源１８、第２光源２０の調光率となるように調光制御を実行する（Ｓ４２）。一方、第１検知結果において人が存在しない場合（Ｓ４０のＮ）、第１制御部６２は、第１光源１６の調光率＜第２光源１８、第２光源２０の調光率となるように調光制御を実行する（Ｓ４４）。第１通信部５４は、調光率を送信する（Ｓ４６）。輝度値＜しきい値であれば（Ｓ４８のＹ）、第２制御部６４は、第２光源１８、第２光源２０の調光率を制御する（Ｓ５０）。第１通信部５４は、調光率を送信する（Ｓ５２）。輝度値＜しきい値でなければ（Ｓ４８のＮ）、つまり輝度値≧しきい値であれば、処理は終了される。   FIG. 7 is a flowchart showing a procedure of dimming control by the illumination control device 12. When a person is present in the first detection result (Y in S40), the first control unit 62 adjusts the dimming rate of the first light source 16> the dimming rate of the second light source 18 and the second light source 20. Light control is executed (S42). On the other hand, if no person is present in the first detection result (N in S40), the first control unit 62 is such that the dimming rate of the first light source 16 <the dimming rate of the second light source 18 and the second light source 20. The dimming control is executed (S44). The first communication unit 54 transmits the dimming rate (S46). If luminance value <threshold value (Y in S48), the second control unit 64 controls the dimming rates of the second light source 18 and the second light source 20 (S50). The first communication unit 54 transmits the dimming rate (S52). If luminance value <threshold value is not satisfied (N in S48), that is, if luminance value ≧ threshold value, the process ends.

本発明の実施例によれば、床面を含む方向に対する検知結果と、これとは異なった方向に対する検知結果とをもとに、床面を含む方向を照明するための第１光源と、第１光源の照明の方向とは異なった方向を照明するための第２光源とを調光制御するので、様々な方向を考慮して調光制御できる。また、様々な方向を考慮して調光制御するので、周囲の環境に適した照明を提供できる。また、床面を含む方向に対する検知結果をもとに、第１光源と第２光源とを調光制御してから、床面を含む方向とは異なった方向に対する検知結果をもとに、第２光源をさらに調光制御するので、２種類の光源を２段階で調光制御できる。また、２種類の光源を２段階で調光制御するので、床面を含む方向に対する条件を満たすように第１光源と第２光源とを調光制御してから、床面を含む方向とは異なった方向に対する条件を満たすように第２光源を調光制御できる。また、２段階で調光制御するので、制御の安定性を向上できる。   According to the embodiment of the present invention, the first light source for illuminating the direction including the floor surface based on the detection result for the direction including the floor surface and the detection result for the direction different from the first surface, Since dimming control is performed on the second light source for illuminating a direction different from the direction of illumination of one light source, dimming control can be performed in consideration of various directions. Moreover, since dimming control is performed in consideration of various directions, illumination suitable for the surrounding environment can be provided. In addition, after dimming control of the first light source and the second light source based on the detection result for the direction including the floor surface, the first light source and the second light source are controlled based on the detection result for the direction different from the direction including the floor surface. Since the two light sources are further dimming controlled, the dimming control of the two types of light sources can be performed in two stages. In addition, since dimming control of two types of light sources is performed in two stages, the dimming control of the first light source and the second light source so as to satisfy the conditions for the direction including the floor surface, and the direction including the floor surface The dimming control of the second light source can be performed so as to satisfy the conditions for different directions. In addition, since the dimming control is performed in two stages, the stability of the control can be improved.

また、人が存在しているか、あるいは人が不在であるかに応じて、第１光源と第２光源とを調光制御してから、輝度値に応じて、第２光源とを調光制御するので、人の存在と輝度値を考慮した処理を実行できる。また、人が存在している場合に、第１光源の調光率を第２光源の調光率よりも高くするので、人が存在してる場所に対して明るさを確保できる。また、人が存在してる場所に対して明るさが確保されるので、空間全体での快適性を向上できる。また、人が不在である場合に、第１光源の調光率を第２光源の調光率よりも低くするので、消費電力を低減できる。また、輝度値に応じて、第２光源をさらに調光制御するので、明るさを確保できる。また、人の存在と輝度値とをもとに調光制御するので、消費電力を低減しながらも、明るさを確保できる。   Further, dimming control is performed on the first light source and the second light source according to whether a person is present or absent, and then the dimming control is performed on the second light source according to the luminance value. Therefore, it is possible to execute processing in consideration of human presence and luminance values. In addition, when a person is present, the dimming rate of the first light source is set higher than the dimming rate of the second light source, so that brightness can be ensured for a place where the person exists. Moreover, since brightness is ensured for a place where a person exists, the comfort in the entire space can be improved. Moreover, when a person is absent, the light control rate of the first light source is made lower than the light control rate of the second light source, so that power consumption can be reduced. Further, since the second light source is further dimmed in accordance with the luminance value, the brightness can be ensured. In addition, since dimming control is performed based on the presence of a person and a luminance value, brightness can be ensured while reducing power consumption.

また、第１センサを照明制御装置に備えながら、第２センサ、第１光源、第２光源を照明制御装置の外部に備えるので、照明システムの設置を容易にできる。また、誘導視野における輝度値の幾何平均値を使用するので、空間の明るさ感を人の見え方に近づけることができる。また、空間の明るさ感が人の見え方に近づくので、快適性を向上できる。   Moreover, since the second sensor, the first light source, and the second light source are provided outside the illumination control device while the first sensor is provided in the illumination control device, the installation of the illumination system can be facilitated. In addition, since the geometric average value of the luminance values in the guidance visual field is used, it is possible to bring the sense of brightness of the space closer to how the person sees. In addition, since the brightness of the space approaches the way people see, comfort can be improved.

本発明の一態様の概要は、次の通りである。本発明のある態様の照明制御装置１２は、床面３６を含む方向に対する検知処理を実行する第１センサ２２から第１検知結果を取得する第１取得部５８と、第１センサ２２の検知処理の方向とは異なった方向に対する検知処理を実行する第２センサ１４から第２検知結果を取得する第２取得部６０と、第１取得部５８において取得した第１検知結果と第２取得部６０において取得した第２検知結果とをもとに、床面３６を含む方向を照明するための第１光源１６と、第１光源１６の照明の方向とは異なった方向を照明するための第２光源１８、第２光源２０とを調光制御する制御部５２と、を備える。   The outline of one embodiment of the present invention is as follows. The lighting control device 12 according to an aspect of the present invention includes a first acquisition unit 58 that acquires a first detection result from the first sensor 22 that executes detection processing for a direction including the floor surface 36, and detection processing of the first sensor 22. The second acquisition unit 60 that acquires the second detection result from the second sensor 14 that executes the detection process for the direction different from the first direction, the first detection result acquired by the first acquisition unit 58, and the second acquisition unit 60. The first light source 16 for illuminating the direction including the floor surface 36 and the second for illuminating a direction different from the direction of illumination of the first light source 16 based on the second detection result acquired in FIG. And a control unit 52 that performs dimming control on the light source 18 and the second light source 20.

制御部５２は、第１取得部５８において取得した第１検知結果をもとに、第１光源１６と第２光源１８、第２光源２０とを調光制御する第１制御部６２と、第１制御部６２が調光制御してから、第２取得部６０において取得した第２検知結果をもとに、第２光源１８、第２光源２０をさらに調光制御する第２制御部６４と、をさらに備えてもよい。   The control unit 52 includes a first control unit 62 that performs dimming control on the first light source 16, the second light source 18, and the second light source 20 based on the first detection result acquired by the first acquisition unit 58. A second control unit 64 for further dimming control of the second light source 18 and the second light source 20 based on the second detection result acquired by the second acquisition unit 60 after the first control unit 62 performs dimming control; , May be further provided.

第１取得部５８は、第１検知結果として、人が存在しているか、あるいは人が不在であるかを示す情報を取得し、第２取得部６０は、第２検知結果として輝度値を取得し、第１制御部６２は、人が存在している場合に、第１光源１６の調光率を第２光源１８、第２光源２０の調光率よりも高くし、人が不在である場合に、第１光源１６の調光率を第２光源１８、第２光源２０の調光率よりも低くし、第２制御部６４は、輝度値に応じて、第２光源１８、第２光源２０をさらに調光制御してもよい。   The first acquisition unit 58 acquires information indicating whether a person is present or absent as a first detection result, and the second acquisition unit 60 acquires a luminance value as a second detection result. The first control unit 62 makes the dimming rate of the first light source 16 higher than the dimming rates of the second light source 18 and the second light source 20 when a person is present, and no person is present. In this case, the dimming rate of the first light source 16 is made lower than the dimming rates of the second light source 18 and the second light source 20, and the second control unit 64 determines whether the second light source 18 and the second light source 18 The light source 20 may be further dimmed and controlled.

第１センサ２２は、本照明制御装置１２に備えられ、第２センサ１４は、本照明制御装置１２の外部に備えられ、第１光源１６および第２光源１８、第２光源２０は、本照明制御装置１２の外部に備えられてもよい。   The first sensor 22 is provided in the main illumination control device 12, the second sensor 14 is provided outside the main illumination control device 12, and the first light source 16, the second light source 18, and the second light source 20 are provided in the main illumination. It may be provided outside the control device 12.

本発明の別の態様は、照明システム１００である。この照明システム１００は、床面３６を含む方向に対する検知処理を実行する第１センサ２２を備える照明制御装置１２と、照明制御装置１２に接続されるとともに、第１センサ２２の検知処理の方向とは異なった方向に対する検知処理を実行する第２センサ１４と、照明制御装置１２に接続されるとともに、床面３６を含む方向を照明するための第１光源１６と、照明制御装置１２に接続されるとともに、第１光源１６の照明の方向とは異なった方向を照明するための第２光源１８、第２光源２０とを備える。照明制御装置１２は、第１センサ２２から取得した取得した第１検知結果と第２センサ１４から取得した第２検知結果とをもとに、第１光源１６と第２光源１８、第２光源２０とを調光制御する。   Another aspect of the present invention is a lighting system 100. The lighting system 100 includes a lighting control device 12 that includes a first sensor 22 that executes detection processing for a direction including the floor surface 36, and is connected to the lighting control device 12 and includes the direction of detection processing of the first sensor 22. Is connected to the second sensor 14 for executing detection processing for different directions and the illumination control device 12, and is connected to the first light source 16 for illuminating the direction including the floor surface 36, and the illumination control device 12. And a second light source 18 and a second light source 20 for illuminating a direction different from the direction of illumination of the first light source 16. Based on the first detection result acquired from the first sensor 22 and the second detection result acquired from the second sensor 14, the illumination control device 12 includes the first light source 16, the second light source 18, and the second light source. 20 and dimming control.

本発明のさらに別の態様は、照明制御方法である。この方法は、床面３６を含む方向に対する検知処理を実行する第１センサ２２から第１検知結果を取得するステップと、第１センサ２２の検知処理の方向とは異なった方向に対する検知処理を実行する第２センサ１４から第２検知結果を取得するステップと、取得した第１検知結果と取得した第２検知結果とをもとに、床面３６を含む方向を照明するための第１光源１６と、第１光源１６の照明の方向とは異なった方向を照明するための第２光源１８、第２光源２０とを調光制御するステップと、を備える。   Yet another embodiment of the present invention is a lighting control method. In this method, the step of acquiring the first detection result from the first sensor 22 that executes the detection process for the direction including the floor surface 36 and the detection process for the direction different from the direction of the detection process of the first sensor 22 are executed. The first light source 16 for illuminating the direction including the floor surface 36 based on the step of acquiring the second detection result from the second sensor 14 and the acquired first detection result and the acquired second detection result. And dimming control of the second light source 18 and the second light source 20 for illuminating a direction different from the direction of illumination of the first light source 16.

（実施例２）
実施例２は、実施例１と同様に、照明空間全体の快適性向上と、消費電力の低減との両立を図ることを目的とする照明システムに関する。実施例１では、第１センサが人の存在を検知したか否かに応じて、第１光源の調光率と第２光源の調光率とを調節し、その後の空間の輝度分布を第２センサで測定し、所望の輝度分布が得られていない場合に、第２光源の調光率を再調節している。一方、実施例２では、第１センサが、人の存在を検知せずに、部屋に入射される外光量を検知する。また、実施例２は、外光量に応じて、第１光源の調光率と第２光源の調光率とを調節し、その後の空間の輝度分布を第２センサで測定し、所望の輝度分布が得られていない場合に、第２光源の調光率を再調節する。実施例２に係る照明システム１００、照明器具１０、第２センサ１４、照明制御装置１２は、図１から図４と同様のタイプである。ここでは、実施例１との差異を中心に説明する。 (Example 2)
As in the first embodiment, the second embodiment relates to a lighting system for the purpose of achieving both improvement in the comfort of the entire lighting space and reduction in power consumption. In the first embodiment, the dimming rate of the first light source and the dimming rate of the second light source are adjusted according to whether or not the first sensor detects the presence of a person, and the luminance distribution in the subsequent space is changed to the first luminance distribution. When the desired luminance distribution is not obtained by measuring with two sensors, the dimming rate of the second light source is readjusted. On the other hand, in Example 2, the first sensor detects the amount of external light incident on the room without detecting the presence of a person. In the second embodiment, the dimming rate of the first light source and the dimming rate of the second light source are adjusted according to the amount of external light, and the luminance distribution of the subsequent space is measured by the second sensor to obtain a desired luminance. When the distribution is not obtained, the dimming rate of the second light source is readjusted. The lighting system 100, the lighting fixture 10, the second sensor 14, and the lighting control device 12 according to the second embodiment are the same type as those shown in FIGS. Here, it demonstrates centering on the difference with Example 1. FIG.

図４の画像センサ６６は、後述の画像処理部６８において、照明空間の明るさを検知するために使用されるので、前述のＡＧＣ回路における増幅率の自動調整はなされずに、増幅部の増幅率は固定値にされる。これは、ＡＧＣ回路によって撮像画像の明るさが調整されてしまうと、撮像画像から照明空間の明るさを検知できないからである。そのため、画像センサ６６にＡＧＣ回路が含まれていなくてもよく、ＡＧＣ回路の機能がオフにされていてもよい。画像処理部６８は、画像センサ６６からの撮像画像における各画素の画素値の平均値を計算する。平均値は、照明システム１００が設置された部屋に入射される外光量といえる。画像処理部６８は、外光量を制御部５２に出力する。   The image sensor 66 shown in FIG. 4 is used to detect the brightness of the illumination space in an image processing unit 68 to be described later. Therefore, the amplification factor in the amplification unit is not automatically adjusted in the AGC circuit described above. The rate is fixed. This is because if the brightness of the captured image is adjusted by the AGC circuit, the brightness of the illumination space cannot be detected from the captured image. For this reason, the image sensor 66 may not include an AGC circuit, and the function of the AGC circuit may be turned off. The image processing unit 68 calculates the average value of the pixel values of each pixel in the captured image from the image sensor 66. It can be said that the average value is the amount of external light incident on the room where the illumination system 100 is installed. The image processing unit 68 outputs the external light amount to the control unit 52.

第１取得部５８は、画像処理部６８において計算した外光量を取得する。この外光量は、第１検知結果ともいえ、それも、図１の床面３６を含む方向に対する検知処理を実行する第１センサ２２からの検知結果である。第１取得部５８は、取得した第１検知結果を第１制御部６２に出力する。   The first acquisition unit 58 acquires the external light amount calculated by the image processing unit 68. This external light amount can be said to be the first detection result, which is also the detection result from the first sensor 22 that executes the detection process for the direction including the floor surface 36 in FIG. The first acquisition unit 58 outputs the acquired first detection result to the first control unit 62.

第１制御部６２は、第１取得部５８において取得した第１検知結果をもとに、第１光源１６、第２光源１８、第２光源２０を調光制御する。まず、第１制御部６２は、第１検知結果から外光量を特定する。また、第１制御部６２は、外光量に対する第１光源１６、第２光源１８、第２光源２０の調光率の関係を予め保持しており、特定した外光量をもとに、保持した関係から第１光源１６、第２光源１８、第２光源２０の調光率を導出する。当該関係においては、外光量が小さくなるほど、第１光源１６の調光率が高くされるとともに、第２光源１８、第２光源２０の調光率が低くされる。一方、当該関係においては、外光量が大きくなるほど、第１光源１６の調光率が低くされるとともに、第２光源１８、第２光源２０の調光率が大きくされる。ここでは、この処理を図８を使用しながら、さらに詳細に説明する。   The first control unit 62 performs dimming control on the first light source 16, the second light source 18, and the second light source 20 based on the first detection result acquired by the first acquisition unit 58. First, the first control unit 62 specifies the external light amount from the first detection result. In addition, the first control unit 62 holds in advance the relationship of the dimming rates of the first light source 16, the second light source 18, and the second light source 20 with respect to the external light amount, and holds based on the specified external light amount. The dimming rates of the first light source 16, the second light source 18, and the second light source 20 are derived from the relationship. In this relationship, the smaller the external light amount, the higher the dimming rate of the first light source 16 and the lower the dimming rate of the second light source 18 and the second light source 20. On the other hand, in this relationship, as the external light quantity increases, the dimming rate of the first light source 16 is lowered and the dimming rates of the second light source 18 and the second light source 20 are increased. Here, this process will be described in more detail with reference to FIG.

図８は、本発明の実施例２に係る照明制御装置１２による調光制御の概要を示す。図８の横方向が時間の経過を示す。また、上段が第１検知結果の内容を示し、縦方向が外光量を示す。ここでは、上になるほど、外光量の大きい状態に相当する。外光量は、時間の経過とともに、小さい状態から大きい状態に遷移し、さらに小さい状態に戻っている。中段が、第１光源１６に対する調光率を示し、下段が、第２光源１８、第２光源２０に対する調光率を示す。いずれも、上になるほど、調光率の高い状態に相当する。   FIG. 8 shows an outline of dimming control by the illumination control device 12 according to the second embodiment of the present invention. The horizontal direction in FIG. 8 shows the passage of time. The upper row shows the contents of the first detection result, and the vertical direction shows the amount of external light. Here, the higher the value, the larger the amount of external light. As time passes, the external light amount transitions from a small state to a large state and returns to a smaller state. The middle row shows the dimming rate for the first light source 16, and the lower row shows the dimming rate for the second light source 18 and the second light source 20. In any case, the higher the level, the higher the dimming rate.

第１光源１６に対する調光率は、外光量が小さい状態から大きい状態に遷移すると、高い値から低い値に変化する。一方、第１光源１６に対する調光率は、外光量が大きい状態から小さい状態に遷移すると、低い値から高い値に変化する。これは、第１センサ２２で検知された外光量と、第１光源１６による床面３６での照度との和が略一定になるように、第１光源１６に対する調光制御がなされていることに相当する。また、第２光源１８、第２光源２０に対する調光率は、外光量が小さい状態から大きい状態に遷移すると、低い値から高い値に変化する。一方、第２光源１８、第２光源２０に対する調光率は、外光量が大きい状態から小さい状態に遷移すると、高い値から低い値に変化する。図４に戻る。このように、第１制御部６２は、外光量が小さくなるほど、第１光源１６の調光率を高くするとともに、第２光源１８の調光率を低くする。   The dimming rate for the first light source 16 changes from a high value to a low value when the external light amount transitions from a small state to a large state. On the other hand, the dimming rate for the first light source 16 changes from a low value to a high value when the external light amount transitions from a large state to a small state. This is because dimming control is performed on the first light source 16 so that the sum of the external light amount detected by the first sensor 22 and the illuminance on the floor surface 36 by the first light source 16 becomes substantially constant. It corresponds to. Further, the dimming rate for the second light source 18 and the second light source 20 changes from a low value to a high value when the external light amount transitions from a small state to a large state. On the other hand, the dimming rate for the second light source 18 and the second light source 20 changes from a high value to a low value when the external light amount transitions from a large state to a small state. Returning to FIG. Thus, the first control unit 62 increases the dimming rate of the first light source 16 and decreases the dimming rate of the second light source 18 as the external light amount decreases.

第１通信部５４は、これまでと同様に、第１制御部６２から、第１光源１６に対する調光率と、第２光源１８、第２光源２０に対する調光率を入力し、これらが含まれた調光信号を生成する。さらに、第１通信部５４は、調光信号線３２を介して照明制御装置１２に、調光信号を送信する。これに続いて、第２通信部５６、第２取得部６０、第２制御部６４は、実施例１と同様の処理を実行する。その結果、空間輝度分布が予め定めた値以上になるように、第２制御部６４は、第２光源１８、第２光源２０の調光率を上昇させる。   The first communication unit 54 receives the dimming rate for the first light source 16 and the dimming rate for the second light source 18 and the second light source 20 from the first control unit 62 as before, and includes these. A dimming signal is generated. Further, the first communication unit 54 transmits a dimming signal to the illumination control device 12 via the dimming signal line 32. Following this, the second communication unit 56, the second acquisition unit 60, and the second control unit 64 perform the same processing as in the first embodiment. As a result, the second control unit 64 increases the dimming rate of the second light source 18 and the second light source 20 so that the spatial luminance distribution is not less than a predetermined value.

図９は、本発明の実施例２に係る照明システム１００による調光制御の手順を示すシーケンス図である。照明制御装置１２は、外光量の検知処理を実行する（Ｓ６０）。照明制御装置１２は、調光制御を実行する（Ｓ６２）。照明制御装置１２は、第１光源１６に調光率を送信し（Ｓ６４）、第２光源１８、第２光源２０にも調光率を送信する（Ｓ６６）。第１光源１６は、調光率にしたがって点灯し（Ｓ６８）、第２光源１８、第２光源２０は、調光率にしたがって点灯する（Ｓ７０）。第２センサ１４は、輝度値を導出する（Ｓ７２）。第２センサ１４は、照明制御装置１２に輝度値を送信する（Ｓ７４）。照明制御装置１２は、調光制御を実行する（Ｓ７６）。照明制御装置１２は、第２光源１８、第２光源２０に調光率を送信する（Ｓ７８）。第２光源１８、第２光源２０は、調光率にしたがって点灯する（Ｓ８０）。   FIG. 9 is a sequence diagram illustrating a procedure of dimming control by the illumination system 100 according to the second embodiment of the present invention. The illumination control device 12 performs an external light amount detection process (S60). The illumination control device 12 performs dimming control (S62). The illumination control device 12 transmits the dimming rate to the first light source 16 (S64), and also transmits the dimming rate to the second light source 18 and the second light source 20 (S66). The first light source 16 is turned on according to the dimming rate (S68), and the second light source 18 and the second light source 20 are turned on according to the dimming rate (S70). The second sensor 14 derives a luminance value (S72). The second sensor 14 transmits a luminance value to the illumination control device 12 (S74). The illumination control device 12 performs dimming control (S76). The illumination control device 12 transmits the dimming rate to the second light source 18 and the second light source 20 (S78). The second light source 18 and the second light source 20 are turned on according to the dimming rate (S80).

図１０は、本発明の実施例２に係る照明制御装置１２による調光制御の手順を示すフローチャートである。第１制御部６２は、外光量に応じて第１光源１６、第２光源１８、第２光源２０の調光率を制御する（Ｓ１００）。第１通信部５４は、調光率を送信する（Ｓ１０２）。輝度値＜しきい値であれば（Ｓ１０４のＹ）、第２制御部６４は、第２光源１８、第２光源２０の調光率を制御する（Ｓ１０６）。第１通信部５４は、調光率を送信する（Ｓ１０８）。輝度値＜しきい値でなければ（Ｓ１０４のＮ）、つまり輝度値≧しきい値であれば、処理は終了される。   FIG. 10 is a flowchart illustrating a procedure of dimming control by the illumination control device 12 according to the second embodiment of the present invention. The 1st control part 62 controls the light control rate of the 1st light source 16, the 2nd light source 18, and the 2nd light source 20 according to an external light quantity (S100). The first communication unit 54 transmits the dimming rate (S102). If the luminance value <the threshold value (Y in S104), the second control unit 64 controls the dimming rates of the second light source 18 and the second light source 20 (S106). The first communication unit 54 transmits the dimming rate (S108). If brightness value <threshold value is not satisfied (N in S104), that is, if brightness value ≧ threshold value, the process is terminated.

本発明の実施例によれば、外光量が小さくなるほど、第１光源の調光率を高くするとともに、第２光源の調光率を低くするので、外光を利用した調光制御を実行できる。また、外光を利用した調光制御が実行されるので、消費電力を低減できる。また、輝度値に応じて、第２光源をさらに調光制御するので、空間全体の輝度分布の低下を抑制できる。また、空間全体の輝度分布の低下が抑制されるので、快適性を向上できる。   According to the embodiment of the present invention, as the external light quantity decreases, the dimming rate of the first light source is increased and the dimming rate of the second light source is decreased. . In addition, since dimming control using outside light is executed, power consumption can be reduced. Further, since the second light source is further dimmed and controlled according to the luminance value, it is possible to suppress a decrease in the luminance distribution of the entire space. Moreover, since the fall of the luminance distribution of the whole space is suppressed, comfort can be improved.

本発明の一態様の概要は、次の通りである。第１取得部５８は、第１検知結果として、外光量を取得し、第２取得部６０は、第２検知結果として輝度値を取得し、第１制御部６２は、外光量が小さくなるほど、第１光源１６の調光率を高くするとともに、第２光源１８、第２光源２０の調光率を低くし、第２制御部６４は、輝度値に応じて、第２光源１８、第２光源２０をさらに調光制御してもよい。   The outline of one embodiment of the present invention is as follows. The first acquisition unit 58 acquires the external light amount as the first detection result, the second acquisition unit 60 acquires the luminance value as the second detection result, and the first control unit 62 decreases the external light amount as While the dimming rate of the first light source 16 is increased and the dimming rates of the second light source 18 and the second light source 20 are decreased, the second control unit 64 determines whether the second light source 18 and the second light source 18 The light source 20 may be further dimmed and controlled.

以上、本発明を実施例をもとに説明した。この実施例は例示であり、それらの各構成要素あるいは各処理プロセスの組合せにいろいろな変形例が可能なこと、またそうした変形例も本発明の範囲にあることは当業者に理解されるところである。   In the above, this invention was demonstrated based on the Example. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to each of those constituent elements or combinations of processing processes, and such modifications are also within the scope of the present invention. .

本実施例１、２において、照明制御装置１２と第２センサ１４とが別に構成されている。しかしながらこれに限らず例えば、照明制御装置１２は、第１センサ２２の機能を備えるとともに、第２センサ１４の機能を備えてもよい。このような構成の場合、照明システム１００には、２台の照明制御装置１２が含まれる。一方の照明制御装置１２では、第２センサ１４の機能がオフにされ、第１センサ２２の機能がオンにされる。他方の照明制御装置１２では、第１センサ２２の機能がオフにされ、第２センサ１４の機能がオンにされる。本変形例によれば、１種類の照明制御装置１２だけで照明システム１００を実現できる。   In the first and second embodiments, the illumination control device 12 and the second sensor 14 are configured separately. However, the present invention is not limited to this. For example, the illumination control device 12 may have the function of the first sensor 22 and the function of the second sensor 14. In the case of such a configuration, the illumination system 100 includes two illumination control devices 12. In one illumination control device 12, the function of the second sensor 14 is turned off, and the function of the first sensor 22 is turned on. In the other lighting control device 12, the function of the first sensor 22 is turned off and the function of the second sensor 14 is turned on. According to this modification, the illumination system 100 can be realized with only one type of illumination control device 12.

本実施例１、２において、照明制御装置１２は、第１センサ２２を含む。しかしながらこれに限らず例えば、照明制御装置１２は、第１センサ２２を含まず、第１センサ２２は、第２センサ１４と同様に、照明制御装置１２とは別に設けられてもよい。本変形例によれば、照明システム１００の構成の自由度を向上できる。   In the first and second embodiments, the illumination control device 12 includes a first sensor 22. However, the present invention is not limited to this. For example, the lighting control device 12 does not include the first sensor 22, and the first sensor 22 may be provided separately from the lighting control device 12, similarly to the second sensor 14. According to this modification, the freedom degree of the structure of the illumination system 100 can be improved.

本実施例１、２において、調光信号線３２および制御信号線３４が使用されることによって、照明システム１００において有線通信が実行されている。しかしながらこれに限らず例えば、調光信号線３２および制御信号線３４、あるいはいずれか一方に対して無線通信が使用されてもよい。本変形例によれば、照明システム１００の構成の自由度を向上できる。   In the first and second embodiments, the dimming signal line 32 and the control signal line 34 are used, and wired communication is performed in the lighting system 100. However, the present invention is not limited to this. For example, wireless communication may be used for the dimming signal line 32 and / or the control signal line 34. According to this modification, the freedom degree of the structure of the illumination system 100 can be improved.

１０ 照明器具、 １２ 照明制御装置、 １４ 第２センサ、 １６ 第１光源、 １８ 第２光源、 ２０ 第２光源、 ２２ 第１センサ、 ２４ 第１ルーバ、 ２６ 第２ルーバ、 ２８ 天井面、 ３０ 壁面、 ３２ 調光信号線、 ３４ 制御信号線、 ３６ 床面、 ４０ 通信部、 ４２ 点灯制御部、 ４４ 記憶部、 ５０ 通信部、 ５２ 制御部、 ５４ 第１通信部、 ５６ 第２通信部、 ５８ 第１取得部、 ６０ 第２取得部、 ６２ 第１制御部、 ６４ 第２制御部、 ６６ 画像センサ、 ６８ 画像処理部、 ７０ 記憶部、 ８０ 通信部、 ８２ 制御部、 ８４ 画像センサ、 ８６ 画像処理部、 １００ 照明システム。   DESCRIPTION OF SYMBOLS 10 Lighting fixture, 12 Lighting control apparatus, 14 2nd sensor, 16 1st light source, 18 2nd light source, 20 2nd light source, 22 1st sensor, 24 1st louver, 26 2nd louver, 28 Ceiling surface, 30 Wall surface , 32 Dimming signal line, 34 Control signal line, 36 Floor surface, 40 Communication unit, 42 Lighting control unit, 44 Storage unit, 50 Communication unit, 52 Control unit, 54 First communication unit, 56 Second communication unit, 58 First acquisition unit, 60 Second acquisition unit, 62 First control unit, 64 Second control unit, 66 Image sensor, 68 Image processing unit, 70 Storage unit, 80 Communication unit, 82 Control unit, 84 Image sensor, 86 Image Processing unit, 100 lighting system.

Claims (7)

床面を含む方向に対する検知処理を実行する第１センサから第１検知結果を取得する第１取得部と、
前記第１センサの検知処理の方向とは異なった方向に対する検知処理を実行する第２センサから第２検知結果を取得する第２取得部と、
前記第１取得部において取得した第１検知結果と前記第２取得部において取得した第２検知結果とをもとに、床面を含む方向を照明するための第１光源と、前記第１光源の照明の方向とは異なった方向を照明するための第２光源とを調光制御する制御部と、
を備えることを特徴とする照明制御装置。 A first acquisition unit that acquires a first detection result from a first sensor that executes detection processing for a direction including a floor surface;
A second acquisition unit that acquires a second detection result from a second sensor that executes a detection process for a direction different from the direction of the detection process of the first sensor;
A first light source for illuminating a direction including a floor surface based on the first detection result acquired by the first acquisition unit and the second detection result acquired by the second acquisition unit, and the first light source A control unit for dimming control of a second light source for illuminating a direction different from the direction of the illumination;
An illumination control device comprising: 前記制御部は、
前記第１取得部において取得した第１検知結果をもとに、前記第１光源と前記第２光源とを調光制御する第１制御部と、
前記第１制御部が調光制御してから、前記第２取得部において取得した第２検知結果をもとに、前記第２光源をさらに調光制御する第２制御部と、
をさらに備えることを特徴とする請求項１に記載の照明制御装置。 The controller is
A first control unit that performs dimming control on the first light source and the second light source based on the first detection result acquired by the first acquisition unit;
A second control unit that further performs dimming control on the second light source based on the second detection result acquired by the second acquisition unit after the first control unit performs dimming control;
The illumination control apparatus according to claim 1, further comprising: 前記第１取得部は、第１検知結果として、人が存在しているか、あるいは人が不在であるかを示す情報を取得し、
前記第２取得部は、第２検知結果として輝度値を取得し、
前記第１制御部は、人が存在している場合に、前記第１光源の調光率を前記第２光源の調光率よりも高くし、人が不在である場合に、前記第１光源の調光率を前記第２光源の調光率よりも低くし、
前記第２制御部は、輝度値に応じて、前記第２光源をさらに調光制御することを特徴とする請求項２に記載の照明制御装置。 The first acquisition unit acquires information indicating whether a person is present or absent as a first detection result;
The second acquisition unit acquires a luminance value as a second detection result,
The first control unit makes the dimming rate of the first light source higher than the dimming rate of the second light source when a person is present, and the first light source when the person is absent. The dimming rate of the second light source is lower than the dimming rate of the second light source,
The illumination control apparatus according to claim 2, wherein the second control unit further performs dimming control on the second light source according to a luminance value. 前記第１取得部は、第１検知結果として外光量を取得し、
前記第２取得部は、第２検知結果として輝度値を取得し、
前記第１制御部は、外光量が小さくなるほど、前記第１光源の調光率を高くするとともに、前記第２光源の調光率を低くし、
前記第２制御部は、輝度値に応じて、前記第２光源をさらに調光制御することを特徴とする請求項２に記載の照明制御装置。 The first acquisition unit acquires an external light amount as a first detection result,
The second acquisition unit acquires a luminance value as a second detection result,
The first control unit increases the dimming rate of the first light source and decreases the dimming rate of the second light source as the external light amount decreases.
The illumination control apparatus according to claim 2, wherein the second control unit further performs dimming control on the second light source according to a luminance value. 前記第１センサは、本照明制御装置に備えられ、
前記第２センサは、本照明制御装置の外部に備えられ、
前記第１光源および前記第２光源は、本照明制御装置の外部に備えられることを特徴とする請求項１から４のいずれか１項に記載の照明制御装置。 The first sensor is provided in the lighting control device,
The second sensor is provided outside the lighting control device,
5. The illumination control device according to claim 1, wherein the first light source and the second light source are provided outside the illumination control device. 床面を含む方向に対する検知処理を実行する第１センサを備える照明制御装置と、
前記照明制御装置に接続されるとともに、前記第１センサの検知処理の方向とは異なった方向に対する検知処理を実行する第２センサと、
前記照明制御装置に接続されるとともに、床面を含む方向を照明するための第１光源と、
前記照明制御装置に接続されるとともに、前記第１光源の照明の方向とは異なった方向を照明するための第２光源とを備え、
前記照明制御装置は、前記第１センサから取得した取得した第１検知結果と前記第２センサから取得した第２検知結果とをもとに、前記第１光源と前記第２光源とを調光制御することを特徴とする照明システム。 An illumination control device including a first sensor that executes detection processing for a direction including a floor surface;
A second sensor connected to the illumination control device and executing a detection process for a direction different from the direction of the detection process of the first sensor;
A first light source connected to the illumination control device and illuminating a direction including a floor surface;
A second light source connected to the illumination control device and for illuminating a direction different from the direction of illumination of the first light source;
The illumination control device dimmes the first light source and the second light source based on the first detection result acquired from the first sensor and the second detection result acquired from the second sensor. A lighting system characterized by controlling. 床面を含む方向に対する検知処理を実行する第１センサから第１検知結果を取得するステップと、
前記第１センサの検知処理の方向とは異なった方向に対する検知処理を実行する第２センサから第２検知結果を取得するステップと、
取得した第１検知結果と取得した第２検知結果とをもとに、床面を含む方向を照明するための第１光源と、前記第１光源の照明の方向とは異なった方向を照明するための第２光源とを調光制御するステップと、
を備えることを特徴とする照明制御方法。 Obtaining a first detection result from a first sensor that executes a detection process for a direction including a floor surface;
Obtaining a second detection result from a second sensor that executes a detection process for a direction different from the direction of the detection process of the first sensor;
Based on the acquired first detection result and the acquired second detection result, the first light source for illuminating the direction including the floor surface and the direction different from the illumination direction of the first light source are illuminated. Dimming control a second light source for
An illumination control method comprising:
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