JP2011023339A - Lighting system equipped with control device by illuminance and color temperature - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system equipped with a control device by illuminance and color temperature which controls lighting, turning-off, and change of illuminance of various lighting apparatuses. <P>SOLUTION: The lighting system is composed of a lighting device having a light source and a control device which controls turning-off, lighting, and illuminance at a prescribed position by the light source. The control device includes a clocking means to perform clocking, a color temperature control means which controls fluctuations of the color temperature of the light source in a regulated range by a time unit based on the clocking by the clocking means, and an illuminance control means which controls fluctuation of the illuminance of the light source in a regulated range by elapse of time determined beforehand based on the clocking by the clocking means. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a lighting system equipped with a control device based on illuminance and color temperature, and in particular, a lighting system equipped with a control device that enables control in accordance with the rhythm of human life, Equipped with a pre-programmed control device that responds to changes, responses to human physiological phenomena, changes in illuminance depending on the season, etc., and further detects changes in the actual external illuminance with sensors to turn on and off various lighting devices The present invention relates to an illumination system equipped with a control device based on illuminance and color temperature for controlling changes in illuminance and color temperature.

Conventional illumination devices include those that irradiate at a constant illuminance without change, and those that are equipped with a control device that can change the illuminance. Since the required illuminance is not always constant, it is necessary to change the illuminance by turning on / off the lighting device itself or operating the light source from the light source by the control device in order to maintain an appropriate illuminance.
Therefore, human judgment and operation based on the judgment are indispensable for turning on / off and operating the controller. It is considered that this operation is left to the judgment of an illuminance sensor in the outside world and is automated like lighting control of a streetlight or the like. However, even if it is limited to indoor use, the contents of the control will differ depending on the degree of sunlight arrival in the office, the installation location and conditions of the lighting equipment, and the type of lighting equipment installed, Furthermore, there is a problem that maintenance of the lighting device and the control device is necessary, and although it is possible to realize subtle control and optimal light irradiation, such a device has not been developed in reality.

  In addition, it is difficult to feel the changes in the natural environment outdoors because there are many cases of working under the same lighting equipment with constant illuminance throughout the year in the office. A point has been pointed out. Also, in Japan, in addition to circadian rhythms due to changes in sunlight in the day, seasonal changes due to the revolution of the sun make it difficult for the biorhythms in the body to be disturbed by natural seasonal changes when staying in the office is long. The problem is also pointed out.

  For this reason, it is desirable to develop a lighting device or apparatus and a lighting system that can appropriately control illuminance and color temperature and can supply optimal light that can flexibly and appropriately respond to changes in the environment that match the changes in sunlight in the natural environment. It was.

JP 2006-344555 A JP 2003-175109 A

  In order to solve the above problems, the present invention relates to a lighting system equipped with a control device based on illuminance and color temperature, and in particular, a lighting system equipped with a control device that enables control in accordance with the rhythm of human life. Equipped with a controller that pre-programs changes in illuminance with time of day, response to human physiological phenomena, changes in illuminance and color temperature depending on the season, etc., and further changes in illuminance and color temperature in the actual external environment An object of the present invention is to provide an illumination system equipped with a control device based on illuminance and color temperature, which is sensed by a sensor and controls lighting on / off and illuminance change of various lighting devices.

  In order to achieve the above object, an illumination system according to the present invention includes an illumination device including a light source, and a control device that controls turning on / off of the light source of the illumination device and illuminance at a predetermined position by the light source. In the lighting system, the clocking means for clocking, the color temperature control means for controlling the color temperature of the light source within a specified value in units of time based on the clocking time by the clocking means, and the clocking means An illumination system equipped with a control device based on illuminance and color temperature, comprising: illuminance control means for variably controlling the illuminance of the light source within a specified value over a predetermined period of time based on time.

In addition, the illumination system includes an illuminance / color temperature control device, wherein the color temperature control means and the illuminance control means further control the color temperature and the illuminance of the light source, respectively, even on a daily basis. Lighting system.
The illumination system includes an illuminance sensor that is provided at a predetermined installation position and senses illuminance, and the illuminance control unit controls the illuminance of the light source with reference to the illuminance sensed by the illuminance sensor. It is a lighting system. Furthermore, the lighting system includes a moving body detection sensor that is provided at a predetermined installation position and detects a moving body, and the control device turns on or off the lighting device based on a detection result by the moving body detection sensor. It is also a lighting system to perform.
The color temperature in the control means varies between 2500K and 7000K. Moreover, the illumination intensity in the said control means is an illumination system which changes between 100LX-1200LX.
Furthermore, the illumination system is an illumination system including a dimming unit that can adjust the illuminance of the light source between 0% and 100%, with the maximum illuminance of the light source being 100%.

Furthermore, the lighting system controls the lighting device so as to obtain the optimum light based on the measurement value sensed by the light sensor with respect to the change of the illuminance and the color temperature corresponding to the change of the four seasons throughout the year and the time change of the day. Is possible.
The illuminance sensor is provided in the room as a position where the illuminance of sunlight incident on the room can be measured, and the control device is configured to control the illuminance detected by the illuminance sensor. As long as the illuminance of the light source is exceeded, priority is given to natural light, and the light source of the illumination device is turned off.
In the control device, the change rate of the illuminance by the illuminance control unit and the change rate of the color temperature by the color temperature control unit are 30 seconds or more and 3 minutes or less in required time from the start of change to the end of change. Thus, it can also be set as the structure which controls the said color temperature and the said illumination intensity of the said light source of the said illuminating device.
In addition, lighting equipment including downlights such as LEDs and fluorescent lamps, base lighting with ceiling, ceiling lights, base downlights, universal downlights, stand lighting, pendant lighting, upper lights, washer lights, spotlights, ambient lighting, etc. This is a configuration that can be used.

Since the illumination system according to the present invention has the configuration as described in detail above, it has the following effects.
1. By setting the lighting to match the circadian rhythm of the person, an appropriate biorhythm can be automatically incorporated into the office environment. Incorporating changes in illuminance and color temperature depending on the season in addition to the daily sunshine changes, it is possible to realize a comfortable office environment with optimal light that is close to the natural environment and suitable for the work environment.

2. The illuminance sensor can appropriately control and provide the illuminance according to the use environment even in a place where outside light enters the room. It is a lighting system that can prioritize changes in illuminance due to natural light as needed, harmonizes with the natural environment and has an energy saving structure.
3. The moving body detection sensor can automatically turn on / off the lighting as necessary, and can save energy by avoiding unnecessary lighting as much as possible.

4). By setting the color temperature within the range of sunlight and further suitable for the office environment, it is possible to reduce the burden on the human body and reduce the circadian rhythm disturbance during long working hours.
5. Energy can be saved by automatically selecting the optimal illuminance with the passage of time, and appropriate brightness can be obtained by avoiding unnecessary high illuminance from evening to night.
6). In personal stand lighting or the like, the brightness and color temperature of each lighting can be adjusted as necessary. It is efficient because the illuminance of the light source can be adjusted between 0 and 100%.

7. Since changes due to the four seasons and changes in the time of the day throughout the year are introduced, it is possible to control the change in illuminance and color temperature to be optimal light.
8). Since the light source of the lighting device is turned off with priority given to the illuminance of sunlight in the room, it is optimal for energy saving.
9. The rate of change of lighting equipment is extremely slow, and the time required from the start of change to the end of change is set to 30 seconds or more and 3 minutes or less, so the change is not stimulating or extreme, so it is inconsistent with changes in natural phenomena. There is no.
10. About the kind of illuminating device to be used, the some illuminating device which can control illumination intensity change and color temperature change can be used.

It is a figure which shows the whole structure of the illumination system which concerns on this invention. It is a table | surface which shows an example of the color temperature and illumination intensity change of the illumination system which concerns on this invention. It is a graph which shows an example of the annual fluctuation | variation of the color temperature of the illumination system which concerns on this invention. It is a graph which shows an example of the change of the color temperature based on a person's circadian rhythm in the other example of the illumination system which concerns on this invention. It is a table | surface which shows an example of color temperature and an illumination intensity change in the other example of the illumination system which concerns on this invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, an illumination system according to the present invention will be described in detail based on embodiments shown in the drawings.
As shown in FIG. 1, the illumination system 10 according to the present invention is configured by an illumination device 20, a control device 30, and an illuminance sensor 40.

The illumination device 20 is illumination that can control the illuminance and color temperature of the internal light source by the control device 30. Here, the illuminance of the light source means the illuminance measured at a predetermined position by illumination with light from the light source, and the predetermined position is representative in a room where illumination is performed by the illumination device. It means a position, for example, a point on a desk installed indoors.
The lighting device 20 can use various types of lighting equipment depending on the place of use. For example, use downlights such as LEDs and fluorescent lights, base downlights, base lighting with ceilings, ceiling lights, universal downlights, stand lighting, pendant lighting, upper lights, washer lights, spotlights, ambient lighting, etc. Can do. In this embodiment, these lights are combined to form an office. For example, the base downlight is used for general lighting such as the ceiling and the background light, and pendant lighting is used in places where the surrounding space and interior are designed. Therefore, it can be used as a lighting system in harmony with office design.

  Further, an existing light source such as a fluorescent lamp or an LED can be used as the light source of the lighting device 20. By using an LED as the light source, the amount of power can be reduced to 1/3 to 1/4 of that of a fluorescent lamp, and energy saving can be achieved.

  The control device 30 includes a clocking means 32, a color temperature control means 34, an illuminance control means 36, and a storage means 37. The storage means 37 stores control values of illuminance and color temperature as shown in FIG. The table of control values shown in FIG. 2 is based on desirable changes in the day corresponding to natural light as shown in FIG. 3 and changes in the four seasons throughout the year. It is set so as to change every time, and the change in the day is set differently for each season. Specifically, as shown in FIG. 2A, in June, July and August, which are summer seasons, the illuminance and color temperature are up to 800Lx · 5000K and 16:00 until 12:00 noon, respectively. Is set to 700.5000K, 600Lx.4500K until sunset, 500Lx.4000K until 21:00, and 400Lx.3500K after 21:00. In addition, as shown in FIG. 2B, the illuminance and color temperature are 800 Lx · until 12 o'clock in the daytime in the spring / autumn seasons of 3, 4, 5, 9, 10 and November. It is set to be 4500K, 700.4000K until 15:30, 600Lx.3500K until sunset, 500Lx.3500K until 21:00, and 400Lx.3000K after 21:00. Furthermore, as shown in FIG. 2 (c), in December, January and February, which are winter seasons, the illuminance and the color temperature are 800Lx · 3500K until 12:00 noon and 700 · up until 15:00, respectively. It is set to 3500K, 600Lx • 3000K until sunset, 500Lx • 3000K until 21:00, and 400Lx • 3000K after 21:00.

  The clocking means 32 clocks for a fixed time for displacing the color temperature and illuminance. The total time value can be measured in units of one second using an existing means such as an atomic clock (cesium clock) or a radio clock. In addition, the time can be recorded by known means. The clock means 32 recognizes the current time (time elapsed) and measures the control timing. In addition to the change in color temperature and illuminance in one day, the time can be clocked in units of time or one day in accordance with changes in the color temperature cycle over the year. Furthermore, it is possible to set to perform time-keeping in units of months or years.

  The color temperature control means 34 is a means for setting / controlling the width of the color temperature fluctuation in one day. The lighting system 10 according to the present invention is characterized in that the color temperature in the lighting device is controlled and changed during one day. In an environment where there are four seasons throughout the year, the amount of sunlight and the color temperature change with the changing seasons and with time during the day. In the illumination system 10 according to the present invention, it is possible to use illumination close to natural light in the indoor environment by changing the illuminance and color temperature of illumination by the illumination device within a preset fluctuation range. The color temperature control means 34 of the present invention determines the width of the color temperature fluctuation within one day based on the passage of time in units of days or months measured by the clock means 32, and makes one cycle per year. In this way, the variation range of the color temperature is controlled.

As shown in FIGS. 2 and 3, the color temperature control means 34 in this embodiment controls the illumination so that the color temperature is about 3000K to 4000K in January and the color temperature is about 3500K to 5000K in July. Do. The width of the color temperature can be changed according to the usage environment of the lighting device 20.
It is preferable to use a color temperature value of 2500 K to 7000 K that approximates that of sunlight, and it is possible to achieve an appropriate light with good work efficiency and less burden on the human body in an indoor environment. Specifically, the range of change in color temperature is within the above-mentioned preferred range, a range having a relatively low color temperature is set at a high latitude, and a range having a relatively high color temperature at a low latitude. Is set.

The color temperature control means 34 is also means for controlling the color temperature of the light source of the illumination device 20 within a specified range according to time. The color temperature control device 34 of the present invention controls the color temperature within 24 hours within a range set in units of days and months.
In this embodiment, as shown in FIGS. 2A to 2C, control is performed so that the color temperature is maximized in the early morning time zone and the color temperature is minimized in the late night time zone. ing. Further, the clock means 32 controls the color temperature to change at regular intervals in conjunction with the illuminance control means 36.

  The illuminance control means 36 is means for controlling the illuminance of the light source of the illumination device 20 within a specified range according to time. In this embodiment, control is performed so that the illuminance changes in one day as shown in FIGS. 2 (a) to 2 (c). The range of illuminance is preferably 100 Lx to 1200 Lx, and in this embodiment, the illuminance in the early morning is set to a maximum of 800 Lx. If necessary, the illuminance value may be 400 Lx or less or 800 Lx or more. In addition, this illumination intensity is an example and what is necessary is just to set an illumination intensity range according to a use purpose within the said preferable range.

Furthermore, the illuminance after sunset can be set low by setting the sunset time by the clock means 32. Since the sunset time varies depending on the season, the illuminance change time varies with the season.
In this embodiment, as shown in FIGS. 2 (a) to 2 (c), from June to August, from 19:00 to March to May and from September to November, from 17:30, December to In February, the illuminance after 16:30 is set and controlled to be 500 Lx or less. Moreover, it is 400Lx or less after 21:00 when the usage frequency of lighting in the office is low.
For changes in illuminance and color temperature at each change time, it is preferable to perform slow illuminance change control with a certain time width. Specifically, if the speed of change is 30 seconds or more in the time required from the start of change to the end of change, it becomes difficult for the user to detect the change, and it is efficient by setting it to 3 minutes or less. Changes can be made. The illuminance control means 36 can control the value of the maximum illuminance due to time changes and prevent unnecessary illumination illuminance.

  Here, the illuminance control of the illuminating device 40 by the illuminance control means 36 and the color temperature control of the illuminating device 40 by the color temperature control means 34 are more specifically performed as follows, for example. Is called. That is, each lighting device 40 includes a plurality of light sources having different color temperatures. The color temperature control means 34 adjusts the output balance of the plurality of light sources, and provides a difference in the output of the plurality of light sources having different color temperatures, thereby enabling fine adjustment of the color temperature of the entire lighting device 40. . Further, the illuminance control means 36 determines the total output of the plurality of light sources, determines the output of each light source based on the output balance determined by the color temperature control means 34, and emits light. By doing in this way, it is possible to illuminate with each illumination device 40 with desired illuminance and color temperature.

  In addition to the above-described configuration, the illumination system 10 of the present invention can be configured to include an illuminance sensor 40, a moving object detection sensor 50, and a light control means 60, respectively. is there.

The illuminance sensor 40 is a sensor that senses the illuminance at the installation position. The illuminance sensor 40 works in conjunction with the illuminance control means 36 to turn on / off or change the illuminance of the light source of the lighting device depending on whether the illuminance detected by the illuminance sensor 40 is equal to or greater than the maximum illuminance value of the illuminance control means 36 at the detection time. .
In this embodiment, an illuminance sensor 40 is provided in the vicinity of the illuminating device 20 installed in the office garden, and the illuminating device 20 is turned off when the detected illuminance of the illuminance sensor 40 is equal to or greater than the maximum illuminance of the illuminance control device 36. It has become.

  Further, the illuminance sensor 40 can be configured to activate the illuminance sensor 40 within a certain period of time from the set time in conjunction with the clock means 32. As an example, the illuminance sensor 40 is provided in a room at a position where the illuminance of sunlight (natural light) incident on the room can be measured, and the maximum illuminance of the illuminance control device 36 shown in FIG. The illuminance sensor 40 is activated between 8 o'clock which is 800 Lx and 19:00 which is the sunset setting time, and when the illuminance by natural light is less than the maximum value of the illuminance control device 36 by detecting the ambient illuminance, It is possible to turn on the light, stop the illuminance sensor 40 after 19:00, and turn on, turn off, or change the illuminance of the lighting device 20 with the set illuminance of the illuminance control device 36. The structure prioritizes natural light. When the illuminance of natural light, which is ambient illuminance, reaches the maximum value of the illuminance control device 36, the light source of the illumination device 20 is turned off.

The moving object detection sensor 50 is a sensor for determining the presence or absence of a person in the vicinity of the sensor. The lighting device 20 is turned on / off by detecting a person or another moving object with the sensor.
In the present embodiment, a moving body detection sensor 50 is installed in the vicinity of the lighting device 20, and the lighting device 20 is turned on by detection of a person or a moving body. Moreover, it is also possible to set it as the structure which lights up the illuminating device 20 for a fixed time, when a person is detected.

The dimming means 60 is a means capable of adjusting the brightness of the light source of the lighting device 20, whereby the illuminance by the light source can be adjusted between 0% and 100% with the maximum illuminance as 100%. .
The light control means 60 may be provided separately from the lighting device 20 and the control device 30 so that at least one of the lighting devices 20 in the lighting system 10 can be adjusted, or the illuminance of all the lighting devices 20 can be adjusted simultaneously. It is also possible. It is also possible to provide a structure in which the light control means 60 is provided in each lighting device 20 and the illuminance adjustment is performed for each lighting device 20.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

  The changes in illuminance and color temperature shown in FIGS. 2 and 3 are merely examples, and various settings can be made according to the purpose of use. For example, FIG. 4 shows an example of a circadian rhythm that is desirable in a medical welfare facility. As shown in FIG. 4, the patient's wakefulness and sleep rhythm gradually awakened after waking up after sunrise, approached the sleeping state after lunch, and then maintained the awakening state with the peak at the sunset time. The sleep state is maintained until the wake-up time according to the turn-off time. And as illumination intensity, according to this awakening and sleep rhythm, that is, in the awake state, the illumination intensity is increased, and the illumination intensity is set lower as the sleep state is approached, and in the sleep state, the illumination intensity is close to 0Lx. Drop to condition. Further, the color temperature is lowered in a state close to the sleep state or in the sleep state.

A list of control values as shown in FIG. 5 is based on such a circadian rhythm and also corresponds to changes in the four seasons throughout the year. 5 is different from that shown in FIG. 2 in that the daylighting time is taken into consideration in addition to the circadian rhythm shown in FIG. In this way, by considering the sunrise time, it is possible to more accurately adjust the illuminance and the color temperature according to the circadian rhythm and the change of the four seasons throughout the year.
In FIGS. 2 and 5, the change is made for each season as described above. However, the illuminance, the change in color temperature, and the change timing in each day are set differently every day. It may be good. In FIGS. 2 and 5, the illuminance and the color temperature change at the sunset timing. However, the sunset time may be set to a representative time in the same season. It may be changed every day according to the area where the system is installed. The sunrise time in FIG. 5 is the same as the sunset time.

DESCRIPTION OF SYMBOLS 10 Illuminating system 20 Illuminating device 30 Control device 32 Timekeeping means 34 Color temperature control means 36 Illuminance control means 40 Illuminance sensor 50 Moving body sensor 60 Dimming means

Claims (11)

In an illumination system comprising: an illumination device that includes a light source; and a control device that controls the illumination of the light source of the illumination device to be turned off and on and the illuminance at a predetermined position by the light source.
A clocking means for clocking,
Color temperature control means for controlling the color temperature of the light source within a specified value in units of time based on the time of the clock means;
An illuminance control means for controlling the illuminance of the light source within a specified value over a predetermined time based on the time of the clocking means;
A lighting system equipped with a control device based on illuminance and color temperature.   The illumination system equipped with an illuminance / color temperature control device, wherein the color temperature control means and the illuminance control means further control the color temperature and the illuminance of the light source, respectively, even on a daily basis. The illumination system includes an illuminance sensor that is provided at a predetermined installation position and senses illuminance,
The illumination equipped with a control device for illuminance / color temperature according to claim 1 or 2, wherein the illuminance control means controls the illuminance of the light source with reference to the illuminance sensed by the illuminance sensor. system. The illumination system includes a moving body detection sensor that is provided at a predetermined installation position and detects a moving body,
The illuminance / color temperature according to any one of claims 1 to 3, wherein the control device performs at least one of turning on or off the lighting device based on a detection result by the moving body detection sensor. Lighting system equipped with a control device.   5. The illumination system equipped with the illuminance / color temperature control device according to claim 1, wherein the color temperature in the color temperature control means varies between 2500 K and 7000 K. 6.   The illumination system equipped with the control device for illuminance and color temperature according to any one of claims 1 to 5, wherein the illuminance in the illuminance control means varies between 100Lx and 1200Lx.   7. The illumination system according to claim 1, further comprising a light control means capable of adjusting the illuminance of the light source between 0% and 100%, where the maximum illuminance of the light source is 100%. An illumination system equipped with the control device for illuminance and color temperature described in any one of the above items.   The control device controls the lighting device so as to obtain an optimum light based on a measurement value sensed by a light sensor with respect to a change in illuminance and a color temperature corresponding to a change in four seasons throughout the year and a time change in a day. An illumination system equipped with the illuminance / color temperature control device according to any one of claims 1 to 7. The illuminance sensor is provided in the room as a position where the illuminance of sunlight incident on the room can be measured.
2. The control device according to claim 1, wherein as long as the illuminance detected by the illuminance sensor exceeds the illuminance of the light source to be controlled, priority is given to natural light to turn off the light source of the illumination device. A lighting system equipped with the control device according to any one of items 1 to 8 for illuminance and color temperature.   In the control device, the speed of change in illuminance by the illuminance control means and the speed of change in color temperature by the color temperature control means are 30 seconds or more and 3 minutes or less in required time from the start of change to the end of change. The illumination system equipped with the illuminance / color temperature control device according to claim 1, wherein the color temperature and the illuminance of the light source of the illumination device are controlled.   The lighting device comprises a lighting device including a downlight, a base lighting with a ceiling, a ceiling light, a base downlight, a universal downlight, a stand lighting, a pendant lighting, an upper light, a washer light, a spotlight, and an ambient lighting. An illumination system equipped with the control device for illuminance and color temperature according to any one of claims 1 to 10.

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