JP2009110736A - Light quantity control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light quantity control system capable of attaining a pleasant awakening by sufficiently using outdoor light. <P>SOLUTION: The light quantity control system 1 is for controlling indoor brightness, and is equipped with a natural lighting means 2 for taking in outdoor light PS, measuring means 3, 3 for measuring the brightness, a lighting means 4 for lighting the interior of a room, and a control means 5 for controlling the natural lighting means 2, the measuring means 3, 3, and the lighting means 4. The control means 5 makes the natural lighting means 2 to take in the outdoor light PS at a prescribed set time, the measuring means 3, 3 to measure the indoor brightness after the outdoor light PS has been taken in, and the lighting means 4 to light the interior of the room when light quantity is insufficient. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a light amount control system for taking outdoor light indoors.

  Conventionally, when a sleeping human is awakened by an alarm clock or the like, it sometimes feels uncomfortable due to a sudden stimulus.

  In order to solve this problem, for example, Patent Document 1 reproduces natural light before and after dawn by gradually increasing illuminance from low illuminance to medium illuminance and rapidly increasing from medium illuminance to high illuminance. Have been disclosed to provide a pleasant awakening.

In Patent Document 2, the interior is first brightened by the illumination means, and then the interior is further brightened by the illumination means and the natural light introduced from the opening, so that the comfort at the time of waking can be obtained.
JP 7-318670 A JP 2005-310438 A

  However, since the above-described Patent Documents 1 and 2 are based on the premise that the illumination unit is used from the beginning, the illumination unit is used even when the outdoors is bright, and there is a problem that outdoor light cannot be used sufficiently.

  Accordingly, an object of the present invention is to provide a light amount control system and a light amount control method that can bring a pleasant awakening by sufficiently using outdoor light.

  In order to achieve the above object, a light quantity control system according to the present invention is a light quantity control system for adjusting indoor brightness, and includes a daylighting means for taking in outdoor light, a measurement means for measuring brightness, and an indoor lighting. And a lighting means, a lighting means, a measuring means, and a control means for controlling the lighting means, and the controlling means allows outdoor light to be taken in by the lighting means at a predetermined set time. Further, the brightness of the room that incorporates outdoor light is measured by the measuring unit, and when the amount of light is insufficient, the room is illuminated by the lighting unit.

  In addition, the set illuminance at the set time is determined, and the control means sets the illuminance that is insufficient by lighting the illumination means when the indoor illuminance measured by the measurement means is smaller than the set illuminance. Can be supplemented.

  Furthermore, the set illuminance at the set time is determined, and the control means reduces the excess illuminance by closing the daylighting means when the indoor illuminance measured by the measuring means is larger than the set illuminance. Can be made.

  A plurality of the set times can be determined stepwise before the wake-up time input by the user, and the set illuminance can be determined stepwise for each set time.

  Furthermore, the control means can fully open the daylighting means once at the set time, and then adjust the indoor illuminance measured by the measuring means to the set illuminance.

  Moreover, it is preferable to provide a plurality of the measuring means.

  The control unit preferably closes the daylighting unit before the set time when the daylighting unit is manually opened.

  Thus, the light quantity control system of the present invention is a light quantity control system that adjusts the indoor brightness, and the control means allows outdoor light to be taken in by the daylighting means at a predetermined set time, and the outdoor light is The adopted indoor brightness is measured by the measuring means, and the interior is illuminated by the lighting means when the amount of light is insufficient.

  Therefore, a comfortable awakening can be brought about by fully utilizing outdoor light.

  In addition, the set illuminance at the set time is determined, and the control means, when the indoor illuminance measured by the measurement means is smaller than the set illuminance, by turning on the illumination means to compensate for the insufficient illuminance, While using outdoor light, it is possible to bring about a pleasant awakening with almost the same illumination throughout the year.

  Furthermore, the set illuminance at the set time is determined, and the control means is configured to reduce the extra illuminance by closing the daylighting means when the indoor illuminance measured by the measurement means is larger than the set illuminance. While using light, a comfortable awakening can be achieved with almost the same illumination throughout the year.

  A plurality of set times are determined step by step before the wake-up time input by the user, and the set illuminance is determined step by step for each set time, so that the illuminance is stepped while using outdoor light. Can be raised and a pleasant awakening can be brought about.

  Furthermore, the control means opens the lighting means once at the set time, and then adjusts the indoor illuminance measured by the measuring means to the set illuminance, so that not only simple gradually increasing light but also strong light can be obtained. Because it enters, it becomes a state of being more awakened by stimulation.

  Also, by providing a plurality of measuring means, it is possible to prevent malfunction due to stray light and to reduce measurement errors due to the installation location of the measuring means.

  When the lighting means is manually opened, the control means closes the lighting means before the set time, so that the lighting means remains open, and outdoor light exceeding the set illuminance is indoors. It can prevent getting in.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  First, the whole structure of the building 6 provided with the light quantity control system 1 of this invention is demonstrated using FIG.

  As shown in FIG. 2, the building 6 of the present invention includes walls 61 and 61, a roof 63, and a floor 64.

  Among these, one wall 61 faces south so that when the sun 8 rises at sunrise, the outdoor light PS that is solar radiation from the sun 8 can be directly received.

  The direction of the wall 61 may be eastward in addition to southward, or may be northward as long as it can receive the outdoor light PS of the outdoor 91 by reflected light or the like.

  In addition, since the one wall 61 is provided with the window 62, a part of the outdoor light PS of the outdoor 91 can be taken into the indoor 92.

  Then, as shown in FIG. 1, the light quantity control system 1 of the present embodiment has an illuminance sensor 3, 3 as a measuring means, a fluorescent lamp 4 as an illuminating means, and a blind 2 as a daylighting means in an indoor 92. And a remote controller 5 as a control means.

  The illuminance sensors 3 and 3 are installed on the wall 61 of the indoor 92 in order to measure the illuminance of the indoor 92. A photodiode that uses an electromotive force when light enters the PN junction, or the photodiode It is formed by a phototransistor or the like having an amplifier circuit that amplifies the minute current.

  Since the illuminance sensors 3 and 3 are connected to the remote controller 5 by the cables 13 and 13, the measured illuminance can be transmitted to the remote controller 5.

  The fluorescent lamp 4 is for illuminating the indoor 92 with the illumination light PL, and the brightness of the fluorescent lamp 4 is adjusted by changing the voltage or current in the middle of the cable 14 connected to the remote controller 5. A dimmer 42 is provided, and the brightness can be adjusted by receiving a command from the remote controller 5.

  As shown in FIG. 3, the blind 2 is attached to a window frame 62a at the upper part of the window 62, and the uppermost box is provided with the wings 21 for lighting or shielding the outdoor light PS entering from the window. 24, the rail 25 to which the cords 26, 26 for raising and lowering the wings 21, 26 are connected, and the user manually adjusts the angle of the wings 21,. And a string 27 for carrying out.

  The box 24 includes a motor 22 inside, so that the cords 26 and 26 for raising and lowering the wings 21 can be wound up and the angle of the wings 21 and so on can be changed. In addition, an opening sensor 23 is attached to the lower surface of the box 24 to detect the opening / closing state of the wings 21.

  This opening sensor 23 senses the angle of the wings 21... By contacting the uppermost wing 21. If the opening sensor 23 has a physical mechanism, it uses magnetic force other than contact. Etc.

  Since the motor 22 and the opening degree sensor 23 are connected to the remote controller 5 as the control means by the cable 12, the number of rotations of the motor 22, the opening degree of the wings 21,. Can be moved up and down and opened and closed by receiving a command from the remote controller 5 and rotating the motor 22.

  In addition, the remote controller 5 includes a display unit (not shown) for displaying a setting state and the like, and an operation unit (not shown) for manually moving the blind 2 up and down, and opening and closing the blind 2. It is installed beside 71.

  The remote controller 5 is connected to and controls the illuminance sensors 3 and 3 and the cables 13 and 13, the fluorescent lamp 4 and the cable 14, and the blind 2 and the cable 12, respectively.

  The connection between the remote controller 5 and the illuminance sensors 3 and 3, the fluorescent lamp 4 and the blind 2 is not limited to the method using the cables 13, 14 and 12 but may be a wireless method such as infrared rays.

  The remote controller 5 as the control means includes a timer (not shown) in which the current time is set, and is internally calculated based on the wake-up time Ti input by the user's operation and the wake-up time Ti. The set times T1, T2, and T3 are set.

  The set times T1, T2, and T3 may be calculated by the user's operation in addition to the internal calculation based on the wake-up time Ti.

  Then, at the set times T1, T2, and T3, the remote controller 5 opens / closes / lifts the blind 2 and measures the illuminance of the indoor 92 by the illuminance sensors 3 and 3, and the measured illuminance and the set illuminance L1, After comparing L2 and L3, if necessary, the motor 22 is driven to open / close / lift the blind 2, or the dimmer 42 is adjusted to dimm the fluorescent lamp 4.

  Further, since the remote controller 5 has a switch that can switch the above alarm function to ON / OFF, it is possible to prevent the alarm function from being activated according to the convenience of the user.

  Next, the light quantity control method by the light quantity control system 1 of this Embodiment is demonstrated using the flowchart shown in FIGS.

  First, the overall flow will be described with reference to the flowchart shown in FIG.

  In the light amount control method by the light amount control system 1 of the present embodiment, first, the wake-up time Ti is manually set in a timer built in the remote controller 5 as a control means (step S100).

  For example, by operating a button (not shown) on the remote controller 5 the night before the day, 7 o'clock is set as the morning wake-up time Ti for the next day.

  Next, the blind 2 is initialized by closing the wings 21... Before the next morning wake-up time Ti (step S110).

  That is, the blind 2 is automatically opened and closed at a set time and may be opened and closed by a user at an arbitrary time.

  However, if the blind 2 is not completely closed at the start of the next morning, the outdoor light PS enters the indoor 92 before the start.

  Therefore, in order to prevent the above problems, the wings 21 of the blind 2 are completely closed, for example, one hour before the set wake-up time Ti.

  It should be noted that the time to initialize the blind 2 is any time that is before the wake-up time Ti and that does not prevent the use of the blind 2 before going to bed the previous day, such as 4 hours before the wake-up time Ti. Such time may be set.

  Next, the illuminance of the indoor 92 is adjusted to the set illuminance L1 at the first set time T1 prior to the wake-up time Ti (step S120).

  Similarly, the illuminance of the indoor 92 is adjusted to the set illuminance L2 at the second set time T2 after the first set time T1 and before the wake-up time Ti (step S130).

  Finally, the illuminance of the indoor 92 is adjusted to the set illuminance L3 at the third set time T3 after the second set time T2 and before the wake-up time Ti (step S140).

  Hereinafter, the specific flow of step S110 for closing and initializing the wings 21 of the blind 2 will be described with reference to the flowchart of FIG.

  In steps S110 and S120 described below, a case where the wake-up time Ti is 7:00, the initialization time is 6:00, and the set time T1 is 6:30 will be described as an example.

  First, at a certain time interval, the current time is acquired from a timer set inside the remote controller 5 as the control means (step S1101), and 6 hours one hour before 7 o'clock set as the wake-up time Ti. It is determined whether it is time (step S1102).

  If the result of the determination is 6 o'clock, by driving the motor 22 of the blind 2, the wings 21,... Are lowered, the angle is changed, and the blind 2 is completely closed (step S 1103). End the initialization process.

  On the other hand, if it is not 6 o'clock, reading of the time is repeated at certain time intervals (steps S1101 to S1102).

  Next, step S120 for adjusting the illuminance of the indoor 92 to the set illuminance L1 will be described using the flowchart of FIG.

  First, at a certain time interval, the current time is acquired from a timer set in the remote controller 5 as the control means (step S1201), and 6 minutes before 7 o'clock set as the wake-up time Ti. It is determined whether it is 30 minutes (step S1202).

  As a result of the determination, if it is 6:30, the motor 22 of the blind 2 is driven to open the wings 21... In one stage (step S1203).

  On the other hand, if it is not 6:30, reading of the time is repeated at a certain time interval (steps S1201 to S1202).

  Then, the illuminance sensors 3 and 3 measure the illuminance of the indoor 92 and transmit the measured illuminance to the remote controller 5 (step S1204).

  The remote controller 5 compares the measured illuminance with the preset illuminance L1 that is set in advance, and determines the magnitude (step S1205).

  If the measured illuminance is greater than the set illuminance L1 as a result of this determination (NO in step S1205), the wings 21 are closed by one stage (step S1208), and the illuminance is measured again (step S1204).

  On the other hand, if the measured illuminance is less than or equal to the set illuminance L1 (YES in step S1205), it is determined whether the wings 21,... Have been closed (step S1206). 1 is opened (step S1209), and the illuminance is measured again (step S1204). If the illuminance is closed, the fluorescent lamp 4 is turned on and the illuminance is adjusted to L1 by the dimmer 42 (step S1207). The adjustment process ends.

  Next, step S130 for adjusting the illuminance of the indoor 92 to the set illuminance L2 will be described using the flowchart of FIG.

  Since step S130 is substantially the same as step S120 described above, the entire description is omitted.

  Unlike step S120 described above, step S130 includes step S1310 for determining whether or not wings 21,... Are fully opened when wings 21,... Have not been closed (NO in step S1306). It is characterized by.

  That is, when the set illuminance L2 is large to some extent, the illuminance 21 may be less than or equal to the set illuminance L2 even when the wings 21 are fully opened. In such a case, even if the wings 21 are opened, the wings 21 cannot be opened.

  Therefore, when the wings 21,... Are fully opened, a step S 1310 for determining whether the wings 21,.

  The processing in step S130 described above is substantially the same as in step S140, and thus the description of step S140 is omitted.

  Next, the operation of the light quantity control system 1 of the present embodiment will be described.

  Thus, in the light quantity control system 1 of the present invention, the remote controller 5 as the control means adopts the outdoor light PS by the blind 2 as the daylighting means at the predetermined set times T1, T2, and T3, and the outdoor light The brightness of the indoor 92 incorporating PS is measured by illuminance sensors 3 and 3 as measuring means.

  And when the illumination intensity measured as a light quantity is insufficient, the indoor 92 is illuminated with the fluorescent lamp 4 as an illumination means.

  Therefore, a comfortable awakening can be brought about by fully utilizing the outdoor light PS.

  In other words, the interior 92 is not brightened from the beginning by the illumination means as in the prior art, but the outdoor light PS is taken in by the blind 2 as the lighting means, and the shortage is compensated by the fluorescent lamp 4 as the illumination means. Yes.

  Therefore, it is possible to obtain a natural and pleasant awakening using the outdoor light PS that gradually increases as the sun 8 rises, and to reduce the power consumed by the illumination means.

  The set illuminances L1, L2, and L3 at the set times T1, T2, and T3 are determined, and the remote controller 5 serving as the control unit is configured so that the indoor illuminance measured by the illuminance sensors 3 and 3 serving as the measurement units is When smaller than L1, L2 and L3, the fluorescent light 4 as the illumination means is turned on to compensate for the insufficient illuminance, so that a pleasant awakening can be achieved with almost the same illuminance throughout the year using the outdoor light PS. Can bring.

  That is, by manually setting the set illuminances L1, L2, and L3 corresponding to the set times T1, T2, and T3, the outdoor light can be used even in the morning when there is little sunlight such as a rainy day, or when the sunrise time changes. While using PS, it is possible to always wake up with substantially the same illuminance.

  Similarly, the set illuminances L1, L2, and L3 at the set times T1, T2, and T3 are determined, and the remote controller 5 as the control unit is configured such that the illuminance of the indoor 92 measured by the illuminance sensors 3 and 3 as the measurement unit When it is larger than the set illuminance L1, L2, L3, by closing the blind 2 as the daylighting means and reducing the excess illuminance, the outdoor light PS is used, and a pleasant awakening is achieved with almost the same illuminance throughout the year. Can bring.

  That is, by setting the set illuminances L1, L2, and L3 corresponding to the set times T1, T2, and T3 artificially, the outdoor light can be used even in the morning where there is a lot of outdoor light PS such as sunny summer morning. While using PS, it is possible to always wake up with substantially the same illuminance.

  A plurality of set times T1, T2, and T3 are determined stepwise before the wake-up time Ti input by the user, and the set illuminances L1, L2, and L3 are set stepwise for each set time T1, T2, and T3. By being determined, while using the outdoor light PS, it is possible to increase the illuminance step by step and bring a pleasant awakening.

  For example, if the set illuminance L1 is obtained at the set time T1, the sun 8 rises and the outdoor light PS gradually increases until the set time T2, so that the outdoor light PS is taken in from the blind 2 The illuminance of the indoor 92 also gradually increases with this.

  In addition, when the illuminance of the indoor 92 is adjusted to become the set illuminance L2 at the set time T2, the illuminance of the indoor 92 is approaching the set illuminance L2, so I don't feel uncomfortable with changes.

  In addition, by providing a plurality of illuminance sensors 3 as measuring means, it is possible to prevent malfunction due to stray light, and to reduce measurement errors due to the installation location of the illuminance sensors 3 and 3 as measuring means.

  That is, if only one illuminance sensor 3 is provided, the outdoor light PS reflected on the window frame 62a or the like happens to enter the illuminance sensor 3, so that the remote controller 5 serving as the control means It is determined that the illumination intensity is substantially the same as that of the reflected outdoor light PS.

  On the other hand, if two or more illuminance sensors 3 are provided, the probability that the reflected outdoor light PS happens to enter the plurality of illuminance sensors 3,... Occurrence can be suppressed.

  Then, when the blind 2 as the lighting means is manually opened, the remote controller 5 as the control means causes the blind 2 to remain open by closing the blind 2 before the set time T1. The outdoor light PS exceeding the set illuminance L1 can be prevented from entering the indoor 92.

  That is, the blind 2 can be manually opened / closed and raised / lowered by operating the remote controller 5, but when the blind 2 is fully opened, it is set before the set time T1 by the outdoor light PS. The illuminance L1 may be exceeded.

  In order to prevent such a situation from occurring, it is necessary to completely close the blind 2 before the set time T1 at which the blind 2 is first activated. Therefore, when the blind 2 is manually opened, the remote controller 5 stores this, and the blind 2 is closed at a time somewhat before the set time T1.

  Hereinafter, the light quantity adjustment method of the light quantity control system 1 different from the above embodiment will be described with reference to FIGS.

  The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.

  First, in terms of configuration, the light quantity control system 1 of the present embodiment is substantially the same as the light quantity control system 1 of the embodiment shown in FIG.

  Next, step S160 for adjusting the illuminance of the indoor 92 to the set illuminance L1 will be described using the flowchart shown in FIG.

  Here, since the entire flow is substantially the same as the flowchart shown in FIG. 4, the description thereof will be omitted. However, in this embodiment, for convenience of explanation, step S120 is step S150, step S130 is step S160, and step S140 is step. A description will be given instead of S170.

  First, at a certain time interval, the current time is acquired from a timer set inside the remote controller 5 as the control means (step S1601), and 6 minutes before 7 o'clock set as the wake-up time Ti. It is determined whether it is 50 minutes (step S1602).

  If the result of the determination is 6:50, the motor 22 of the blind 2 is driven to fully open the wings 21,... (Step S1603).

  On the other hand, if it is not 6:50, reading of the time is repeated at a certain time interval (steps S1601 to S1602).

  Then, the illuminance sensors 3 and 3 measure the illuminance of the indoor 92 and transmit the measured illuminance to the remote controller 5 (step S1604).

  The remote controller 5 compares the measured illuminance with a preset illuminance L2 that is set in advance, and determines the magnitude (step S1605).

  As a result of this determination, if the measured illuminance is greater than the set illuminance L2 (NO in step S1605), the wings 21 are closed by one stage (step S1607), and the illuminance is measured again (step S1604).

  On the other hand, if the measured illuminance is less than or equal to the set illuminance L2 (YES in step S1605), the fluorescent lamp 4 is turned on, the illuminance is adjusted to L2 by the dimmer 42 (step S1606), and the adjustment process ends.

  Next, the operation of the light quantity control system 1 of this embodiment will be described.

  Thus, in the light quantity control system 1 of the present embodiment, the remote controller 5 as the control means fully opened the blind 2 as the daylighting means at the set time and maintained this state for 0.5 second to 2.0 seconds. Thereafter, the illuminance of the indoor 92 measured by the illuminance sensor 3 as the measuring means is matched with the set illuminance.

  Therefore, since not only simple gradually increasing light but also strong light enters, it becomes a state where it becomes easy to wake up by stimulation.

  That is, in the light amount control system 1 of the present embodiment, as shown in FIG. 9, each of the times T1, T2, and T3, apart from the fact that the set illuminances L1, L2, and L3 of the indoor 92 are determined, At the time, the blind 2 is fully opened once to maximize the outdoor light PS.

  Therefore, the illuminance does not simply increase as in the set illuminances L1, L2, and L3, but when intense light enters instantaneously, it becomes easy to lead to a state where it is easy to wake up with a light stimulus.

  This stimulus artificially creates an effect that a tree leaks and shines momentarily when the leaves of the tree sway due to the wind etc. when sleeping in the shade of a tree. .

  In addition, the control method of the light quantity control system 1 according to the present embodiment is extremely close to the blind 2 as the daylighting means once it is fully opened, as can be seen by comparing FIGS. Since it becomes an easy control method, a control means etc. can be simplified.

  Other configurations and operational effects are substantially the same as those in the above-described embodiment, and thus the description thereof is omitted.

  The preferred embodiments and examples of the present invention have been described in detail with reference to the drawings, but the specific configuration is not limited to the embodiments and examples, and does not depart from the gist of the present invention. A degree of design change is included in the present invention.

  For example, in the present embodiment and examples, the case where the blind 2 is used as the daylighting unit has been described. However, the present invention is not limited to this, and outdoor such as a curtain, a screen, a shutter, and a method of changing the transparency of glass. Any material can be used as long as the amount of light PS taken in can be changed.

  Further, in the present embodiment and examples, the case where the fluorescent lamp 4 is installed on the ceiling as the illumination means has been described. However, the present invention is not limited to this, and any lamp that can illuminate an incandescent lamp or a diode may be used. The installation position may not be the ceiling.

  Further, in the present embodiment and examples, the case where the internal calculation is performed based on the wake-up time Ti input by the user as the set times T1, T2, and T3 is not limited to this. It can also be determined based on the input sunrise time.

  And in this Embodiment and the Example, although the case where the illumination intensity sensors 3 and 3 as a measurement means were installed in the indoor 92 was demonstrated, it is not limited to this, Some illumination intensity sensors 3 are the outdoors 91 If the illuminance of the outdoor 91 is measured in preparation, measurement errors can be suppressed and malfunctions can be prevented.

  Further, in the present embodiment and examples, the case where the light quantity is controlled by the control of the remote controller 5 as the control means has been described. However, the light quantity control system 1 is activated by turning the remote control 5 to the ON / OFF switch. It is also possible not to do so.

  Further, in the present embodiment and examples, the case where the wake-up time Ti set in the remote controller 5 is set to 7 o'clock as an example has been described as an example, but the present invention is not limited to this, and the wake-up time is set for each day of the week. It may be one that can change Ti.

It is a perspective view explaining the structure of the light quantity control system of the best embodiment of this invention. It is sectional drawing explaining the whole structure of a building provided with the light quantity control system of the best embodiment of this invention. It is a perspective view explaining the structure of the blind used for the light quantity control system of the best embodiment of this invention. It is a flowchart which shows the whole light quantity control method. It is a flowchart which shows the initialization method of the lighting means of a light quantity control method. It is a flowchart which shows the adjustment method of the light quantity at the time of starting of the light quantity control method. It is a flowchart which shows the adjustment method of the light quantity after the time of starting of a light quantity control method. It is a flowchart which shows the adjustment method of the light quantity of the light quantity control system of an Example. It is a graph which shows the indoor illumination intensity at the time of using the light quantity control system of an Example.

Explanation of symbols

L1, L2, L3 Setting illuminance T1, T2, T3 Setting time Ti Wake-up time PS Outdoor light PL Illumination light 1 Light quantity control system 2 Blind
3 Illuminance sensor (measuring means)
4 Fluorescent lamps (lighting means)
42 Dimmer 5 Remote control (control means)
62 Window 72 Human 8 Sun

Claims (7)

A light control system that adjusts the brightness of an indoor space,
A lighting means for taking in outdoor light, a measuring means for measuring brightness, an illuminating means for illuminating the interior, a control means for controlling the lighting means, the measuring means and the illuminating means, and
The control means causes the daylighting means to adopt outdoor light at a predetermined set time, causes the measuring means to measure the indoor brightness of the outdoor light, and if the light quantity is insufficient, the lighting means Light quantity control system characterized by lighting indoors. A set illuminance at the set time is determined,
2. The control unit according to claim 1, wherein when the indoor illuminance measured by the measurement unit is smaller than the set illuminance, the illumination unit is turned on to compensate for insufficient illuminance. Light control system. A set illuminance at the set time is determined,
The said control means closes the said lighting means and reduces excess illuminance when the indoor illumination intensity measured by the said measurement means is larger than the said setting illumination intensity, The excess illumination intensity is reduced. The light quantity control system described in 1.   4. The set time is determined in a stepwise manner before a wake-up time input by a user, and the set illuminance is determined in a stepwise manner for each set time. The light quantity control system described. The control means fully opens the lighting means once at the set time,
5. The light quantity control system according to claim 2, wherein the indoor illuminance measured by the measuring unit is adjusted to the set illuminance.   The light quantity control system according to any one of claims 1 to 5, comprising a plurality of the measuring means.   The said control means makes the said lighting means close before the said setting time, when the said lighting means is opened manually, The said control means is characterized by the above-mentioned. Light control system.

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