Lighting adjustment system

The light-adjusting system addresses sudden light changes by gradually adjusting room brightness using a shutter device and lighting controls, enhancing sleep quality and wake-up comfort.

JP7850564B2Active Publication Date: 2026-04-23LIXIL CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
LIXIL CORP
Filing Date
2022-02-04
Publication Date
2026-04-23

AI Technical Summary

Technical Problem

Existing daylighting systems fail to adjust room brightness effectively during sleep and wake-up times, leading to disrupted sleep states due to sudden changes in light levels.

Method used

A light-adjusting system with a shutter device and control unit that gradually adjusts the opening and closing speed of a building opening based on sleep and wake-up times, using an illuminance meter to detect light levels and adjust the shutter and lighting fixtures accordingly.

Benefits of technology

The system ensures a gradual transition from bright to dark states during sleep and vice versa, promoting comfortable sleep and wake-up experiences by mimicking natural daylight changes.

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Abstract

To provide a light quantity adjusting system which can adjust light quantity.SOLUTION: A light quantity adjustment system 1 according to the present invention includes a light quantity adjusting unit 2 for adjusting a light quantity to a room by opening and closing an opening unit 111 of a building 10, and a control unit 5 for controlling the opening and closing operation of the light quantity adjusting unit 2 so that if the light quantity adjusting unit 2 is in its opened state, the light quantity adjusting unit 2 is driven from its opened state to its closed state at a speed slower than an ordinary opening and closing speed.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present disclosure relates to a daylighting amount adjustment system.

Background Art

[0002] Conventionally, there is known a daylighting amount adjustment system in which, when waking up, the opening and closing of an electric blind (daylighting amount adjustment unit) is controlled based on the waking-up time (see, for example, Patent Document 1). In the daylighting amount adjustment system of Cited Document 1, at the waking-up time, the opening and closing of the opening of the building is performed by the electric blind to adjust the daylighting amount into the room, so that the room can be gradually brightened. Therefore, it is said that a person waking up can wake up comfortably.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Not only when waking up but also when sleeping, the brightness inside the room is an important factor. Depending on the brightness inside the room, a good sleep state may not be achieved. For example, when sleeping during the day, external light may enter the room and it may be difficult to sleep. On the other hand, if the room is darkened at once during the day, it suddenly becomes dark, and the sleep state may not be good. Therefore, it is required to be able to adjust the daylighting amount when sleeping.

[0005] An object of the present disclosure is to provide a daylighting amount adjustment system capable of adjusting the daylighting amount.

Means for Solving the Problems

[0006] This disclosure relates to a light-adjusting system comprising: a light-adjusting unit that adjusts the amount of light entering a room by opening and closing an opening in a building; and a control unit that controls the opening and closing operation of the light-adjusting unit so that, when the light-adjusting unit is in the open state, the light-adjusting unit is driven from the open state to the closed state at a slower speed than the normal opening and closing speed in accordance with sleep time. [Brief explanation of the drawing]

[0007] [Figure 1] This figure shows a light-adjusting system according to one embodiment. [Modes for carrying out the invention]

[0008] Embodiments of this disclosure will be described in detail below with reference to the drawings. The daylighting amount adjustment system 1 of this embodiment adjusts the amount of daylight entering the room 100 by opening and closing an opening 111 in the wall 11 of the building 10 using a shutter device 2 (daylighting amount adjustment unit). The amount of daylight is the amount of external light from sunlight. A window 112 is provided in the opening 111 of the building 10. The room 100 is a living space where people live. A bed 121 is placed on the floor 12 in the room 100, and people sleep and get up on the bed 121. Lighting fixtures 131 are installed on the ceiling 13 of the room 100.

[0009] The daylighting amount adjustment system 1 comprises a shutter device 2 (daylighting amount adjustment unit), an illuminance meter 3 (illuminance detection unit), a setting device 4 (setting unit), a lighting fixture 131, and a control unit 5.

[0010] The shutter device 2 opens and closes the opening 111 of the building 10 to adjust the amount of light entering the room 100. The shutter device 2 is located on the exterior side of the opening 111 and is capable of opening and closing the opening 111. The shutter device 2 in this embodiment is electrically operated. The shutter device 2 comprises a roll-up type shutter 21, a winding unit 22, and a drive unit 23.

[0011] In the opening and closing operation of the shutter device 2, when driving from the closed state to the open state, the drive unit 23 is driven, causing the shutter 21 to be wound up by the winding unit 22. As a result, when the opening 111 is closed, the opening 111 gradually opens from the bottom. In the opening and closing operation of the shutter device 2, when driving from the open state to the closed state, the drive unit 23 is driven, causing the shutter 21 to be wound down by the winding unit 22. As a result, when the opening 111 is open, the opening 111 gradually closes from the top.

[0012] The illuminance meter 3 detects the illuminance of room 100. The illuminance information regarding the illuminance of room 100 detected by the illuminance meter 3 is sent to the control unit 5 via wired or wireless connection.

[0013] The lighting fixture 131 illuminates the room 100 from the ceiling 13. The lighting fixture 131 has, for example, a dimming function. The lighting fixture 131 is controlled by the control unit 5.

[0014] The setting device 4 allows users to set the time to start sleep and the time to wake up. The times set by the setting device 4 are transmitted to the control unit 5 via wired or wireless connection.

[0015] The control unit 5 can control the opening and closing operation of the shutter device 2 according to the sleep time or wake time. The control unit 5 can also control the ON / OFF operation and dimming function of the lighting fixture 131.

[0016] First, let's explain the case where the control unit 5 controls the opening and closing operation of the shutter device 2 in accordance with the sleep time. When the shutter device 2 is in the open state, the control unit 5 controls the opening and closing operation of the shutter device 2 in accordance with the sleep time so that the opening and closing speed of the shutter device 2 is driven from the open state to the closed state at a slower speed than the normal opening and closing speed.

[0017] The control unit 5 controls the shutter device 2 to move from the open state to the closed state at a slower speed than the normal opening and closing speed. For example, in the opening and closing of an opening 111 with a height of 2m, the shutter device 2, which normally moves from fully open to fully closed in about 20 to 60 seconds, is controlled to gradually move the shutter 21 from fully open to fully closed over a period of 10 to 30 minutes. In this embodiment, the shutter 21 is gradually moved from fully open to fully closed over a period of more than 10 times longer (for example, 10 to 30 minutes) than the time it takes for the shutter device 2 to move from fully open to fully closed in its normal operation (for example, 20 to 60 seconds).

[0018] When the control unit 5 controls the shutter device 2 to move from the open state to the closed state at a speed slower than the normal opening and closing speed, the control unit 5 may control the shutter device 2 to move from the open state to the closed state gradually in a continuous operation, or it may control the shutter device 2 to move from the open state to the closed state in steps.

[0019] For example, when the control unit 5 controls the shutter device 2 to drive it from an open state to a closed state in stages, it can control the shutter device 2 to close by a predetermined amount, stop for a predetermined time, and then close by another predetermined amount. For example, the control unit 5 can control the shutter device 2 to repeat a series of operations in which the opening 111 is closed by 5 cm, stopped for a predetermined time, and then closed by 5 cm.

[0020] The control unit 5 controls to start driving the shutter device 2 in accordance with the sleep time set by the setting device 4. In this case, for example, when wanting to start sleeping at a bright predetermined time during the day (for example, 3:00 p.m.), the control unit 5 sets the sleep time to the set time (3:00 p.m.), and starts driving the shutter 21 of the shutter device 2 from, for example, 10 minutes before that set time. Then, the control unit 5 drives the shutter device 2 from the open state to the closed state at a speed slower than the normal opening and closing speed, gradually darkens the interior 100 from a predetermined time before the set time (3:00 p.m.), and can completely darken the interior 100 at the set time (3:00 p.m.). Thereby, by gradually reducing the amount of sunlight taken in from the outside light, it becomes gradually darker, and a person who wants to sleep can gently fall asleep.

[0021] Since the control unit 5 can control to start driving the shutter device 2 in accordance with the sleep time set by the setting device 4, in accordance with the set sleep time, the interior 100 can be gradually darkened from a predetermined time before the set sleep time. Thereby, it becomes easier to gently fall asleep in accordance with the set sleep time.

[0022] When the control unit 5 controls the opening and closing operation of the shutter device 2 in accordance with the sleep time, the control unit 5 controls the shutter device 2 based on the illuminance of the interior 100 detected by the illuminance meter 3. Thereby, by controlling the driving operation of the shutter device 2 according to the difference in brightness due to differences in weather and the like, the transition speed when the interior 100 transitions from a bright state to a dark state can be adjusted. Thereby, in response to the difference in brightness due to the weather, the interior 100 can be gradually darkened.

[0023] When the control unit 5 controls the opening and closing operation of the shutter device 2 in accordance with the sleep time, the control unit 5 can control to adjust the brightness of the interior by means of the dimming function of the lighting fixture 131 based on the illuminance of the interior 100 detected by the illuminance meter 3.

[0024] Next, the case where the control unit 5 controls the opening and closing operation of the shutter device 2 according to the wake-up time will be described. When the shutter device 2 is in the closed state, the control unit 5 controls the opening and closing operation of the shutter device 2 so that it is driven from the closed state to the open state at a speed slower than the normal opening and closing speed according to the wake-up time.

[0025] Controlling the control unit 5 to drive the shutter device 2 from the closed state to the open state at a speed slower than the normal opening and closing speed means that, for example, in the opening and closing of an opening 111 with a height of 2 m, the shutter device 2 that performs an operation of moving from fully closed to fully open in about 20 to 60 seconds in a normal opening and closing operation controls the shutter 21 to gradually move from the fully closed state to a state where it is half open over 10 to 30 minutes. When the control unit 5 controls the opening and closing operation of the shutter device 2 according to the wake-up time, in order to brighten the interior 100, for example, in an opening 111 with a height of 2 m, since the interior will become bright if the shutter device 2 is opened by about 1 m, which is half of the height, the shutter device 2 is gradually moved from the fully closed state to a state where it is half open (about 1 m in height). In the present embodiment, the shutter 21 is gradually moved from fully closed to a state where it is half open over a time that is 10 times or more longer than the time from fully closed to fully open in the normal operation of the shutter device 2 (for example, 20 to 60 seconds) (for example, 10 to 30 minutes).

[0026] When the control unit 5 controls the shutter device 2 to be driven from the closed state to the open state at a speed slower than the normal opening and closing speed, the control unit 5 may control the shutter device 2 to be driven from the closed state to the open state gradually in a continuous operation, or may control the shutter device 2 to be driven from the closed state to the open state step by step.

[0027] For example, when the control unit 5 controls the shutter device 2 to drive it from a closed state to an open state in stages, it can control the shutter device 2 to open by a predetermined amount, stop for a predetermined time, and then open by another predetermined amount. For example, the control unit 5 can control the shutter device 2 to repeat a series of operations in which the opening 111 is opened by 5 cm, stopped for a predetermined time, and then opened by another 5 cm.

[0028] The control unit 5 controls the shutter device 2 to start driving in accordance with the wake-up time set by the setting device 4. In this case, for example, if you want to wake up at a predetermined time in the morning (for example, 6:00 AM), the control unit 5 will start driving the shutter 21 of the shutter device 2 about 10 minutes before the set time by setting the wake-up time to the set time (6:00 AM). The control unit 5 then drives the shutter device 2 from the closed state to the open state at a slower speed than the normal opening and closing speed, gradually brightening the room 100 from a predetermined time before the set time (6:00 AM), so that the room 100 is brightened at the set time (6:00 AM). As a result, the amount of natural light from sunlight is gradually increased, making the sleep state gradually lighter, and allowing the person to wake up naturally.

[0029] The control unit 5 can control the shutter device 2 to start driving in accordance with the wake-up time set by the setting device 4. This allows the room 100 to gradually brighten from a predetermined time before the set wake-up time. As a result, it becomes easier to wake up naturally in accordance with the set wake-up time.

[0030] When the control unit 5 controls the opening and closing operation of the shutter device 2 in accordance with the wake-up time, it controls the shutter device 2 based on the illuminance of the room 100 detected by the illuminance meter 3. This allows the drive operation of the shutter device 2 to be controlled according to differences in brightness due to differences in weather, etc., thereby adjusting the transition speed when the room 100 transitions from a dark state to a bright state. This makes it possible to gradually brighten the room 100 in response to differences in brightness due to weather.

[0031] When the control unit 5 controls the opening and closing operation of the shutter device 2 in accordance with the wake-up time, it can control the brightness of the room using the dimming function of the lighting fixture 131 based on the illuminance of the room 100 detected by the illuminance meter 3. When the control unit 5 controls the opening and closing operation of the shutter device 2 in accordance with the wake-up time, it may also control the shutter device 2 according to whether the sleep state is light or deep, using a sleep monitor that detects REM sleep / non-REM sleep. Depending on the person's waking state, the control unit 5 may, for example, play music or use a bed with adjustable posture (electric bed or air mattress) to encourage waking if the person does not wake up even when the room 100 is brightened.

[0032] Next, we will explain the control operation of the daylight adjustment system 1, specifically the control operation when sleeping during the day and the control operation when waking up in the morning.

[0033] First, let's explain the control operation during sleep when sleeping during the day. During the day, the shutter device 2 is open, and since it is daytime and the sun is out, the room 100 is bright due to the outside light.

[0034] If the user sleeps during the day, they set their sleep time using the setting device 4. Then, the user lies down on the bed 121 to sleep.

[0035] In this state, when the shutter device 2 is in the open state, the control unit 5 starts driving the shutter device 2 a predetermined time before the set sleep time set by the setting device 4, and controls the opening and closing operation of the shutter device 2 so that it drives the shutter device 2 from the open state to the closed state at a slower speed than the normal opening and closing speed. As a result, the shutter 21 of the shutter device 2 is gradually lowered and moves from the open state to the closed state. In this embodiment, when the control unit 5 controls the opening and closing operation of the shutter device 2 according to the sleep time, for example, the shutter device 2, which normally moves from fully open to fully closed in about 20 to 60 seconds, is used to gradually move the shutter 21 from fully open to fully closed over a period of 10 to 30 minutes.

[0036] Alternatively, the control unit 5 may control the shutter device 2 to close in stages, for example, by repeating a series of operations such as closing the opening 111 by 5 cm, stopping for a predetermined time, and then closing it by another 5 cm.

[0037] Furthermore, the control unit 5 may control the shutter device 2 based on the illuminance of the room 100 detected by the illuminance meter 3. For example, based on the illuminance of the illuminance meter 3, the control unit 5 may adjust the speed of the shutter 21 or temporarily stop the opening and closing of the shutter 21. This allows for more effective adjustment of the transition speed when the room 100 transitions from a bright state to a dark state by controlling the drive operation of the shutter device 2 according to differences in brightness due to differences in weather conditions.

[0038] Furthermore, the control unit 5 can adjust the brightness of the room using the dimming function of the lighting fixture 131 based on the illuminance of the room 100 detected by the illuminance meter 3. By controlling the dimming function of the lighting fixture 131 based on the illuminance of the room 100, the room 100 can be darkened more effectively and gradually.

[0039] By controlling the lighting in this way, the amount of natural light entering the room is gradually reduced, creating a gradual darkening that allows for a peaceful sleep. This makes it possible to create an environment similar to twilight by gradually darkening the room when sleeping during the day. Therefore, for people who sleep during the day, this provides an environment that promotes sleep and helps regulate their sleep-wake cycle.

[0040] Next, we will explain the control operation when waking up in the morning. When waking up in the morning, the shutter device 2 is moved to the closed position the previous night. As a result, if the shutter device 2 is not driven in the closed position the following morning, the sun will be out, but the room 100 will be dark.

[0041] To set the wake-up time for the following morning, the user sets the wake-up time the night before using the setting device 4. The user sleeps in bed 121 from the night before until the morning of the following day.

[0042] In this state, when the shutter device 2 is in the closed state, the control unit 5 starts driving the shutter device 2 a predetermined time before the wake-up time set by the setting device 4, and controls the opening and closing operation of the shutter device 2 so that it drives the shutter device 2 from the closed state to the open state at a slower speed than the normal opening and closing speed. As a result, the shutter 21 of the shutter device 2 is gradually wound up and moves gradually from the closed state to the open state.

[0043] In this embodiment, when the control unit 5 controls the opening and closing operation of the shutter device 2 in accordance with the wake-up time, in order to brighten the room 100, the shutter device 2 should be opened to about half its width, or about 1 m, if the opening 111 is 2 m high. Therefore, the shutter device 2 gradually moves the shutter 21 from a fully closed state to a state that is half open (about 1 m high).

[0044] Alternatively, the control unit 5 may control the shutter device 2 to open in stages, for example, by repeating a series of operations such as opening the opening 111 by 5 cm, stopping for a predetermined time, and then opening it by another 5 cm.

[0045] Furthermore, the control unit 5 may control the shutter device 2 based on the illuminance of the room 100 detected by the illuminance meter 3. For example, based on the illuminance of the illuminance meter 3, the control unit 5 may adjust the speed of the shutter 21 or temporarily stop the opening and closing of the shutter 21. This allows for more effective adjustment of the transition speed when the room 100 transitions from a dark state to a bright state by controlling the drive operation of the shutter device 2 according to differences in brightness due to differences in weather conditions.

[0046] Furthermore, the control unit 5 can control the dimming function of the lighting fixture 131 to adjust the brightness of the room based on the illuminance of the room 100 detected by the illuminance meter 3. By controlling the dimming function of the lighting fixture 131 based on the illuminance of the room 100, the room 100 can be brightened more effectively and gradually.

[0047] When the control unit 5 controls the opening and closing operation of the shutter device 2 in accordance with the wake-up time, it may also control the shutter device 2 according to a sleep monitor that detects REM sleep / non-REM sleep. For example, if the person does not wake up even when the room 100 is brightened, the control unit 5 may control the system to encourage waking by playing music or gradually raising a bed with adjustable posture (electric bed or air mattress).

[0048] By controlling the lighting in this way, when waking up, the room is gradually brightened, gradually increasing the amount of sunlight, allowing for a gentle and peaceful awakening from sleep.

[0049] By using the daylighting adjustment system 1 of this embodiment, it is possible to achieve both a gentle sleep during the day and a gentle awakening in the morning.

[0050] In this embodiment, the light-gathering adjustment unit is configured using a shutter device 2. When the light-gathering adjustment unit is configured using a shutter device 2, its ability to block external light when closed is higher than that of curtains or blinds. When the shutter device 2 is fully closed, external light can be blocked. Therefore, by adjusting the amount of light using a shutter device 2 with higher shielding performance, the ability to block external light can be improved more effectively. Furthermore, when the shutter device 2 is closed, outside noise can also be blocked, making it easier to get a good night's sleep.

[0051] Preferred embodiments of the present disclosure have been described above. The present disclosure is not limited to the embodiments described above and can be modified as appropriate.

[0052] In the above embodiment, the light-gathering adjustment unit was configured by a shutter device 2, but it is not limited to this. The light-gathering adjustment unit may be configured by, for example, a curtain or a blind.

[0053] In the above embodiment, when controlling the opening and closing operation of the shutter device 2 in accordance with the sleep time, the shutter 21 was controlled to move from fully open to fully closed, but the embodiment is not limited to this. The shutter 21 does not have to be fully open initially, and may gradually move from a partially open state to a fully closed state. [Explanation of Symbols]

[0054] 1 Lighting adjustment system, 2 Shutter device (lighting adjustment unit), 3 Illuminance meter (illuminance detection unit), 4 Setting device (setting unit), 5 Control unit, 10 Building, 100 Interior, 111 Opening

Claims

1. A setting unit that sets the sleep time to a predetermined time during daylight hours, A light-adjusting unit that adjusts the amount of light entering the room by opening and closing the openings in the building, When the light-gathering adjustment unit is in the open state, a control unit controls the opening and closing operation of the light-gathering adjustment unit to drive it from the open state to the closed state in accordance with the sleep time set by the setting unit, at an opening and closing speed slower than the opening and closing speed other than when controlling the opening and closing operation of the light-gathering adjustment unit in accordance with the sleep time set by the setting unit. It comprises an illuminance detection unit that detects the illuminance inside the room, A light-adjusting system in which, when the control unit drives the light-adjusting unit from an open state to a closed state in accordance with the sleep time set by the setting unit, the light-adjusting unit controls the light-adjusting unit so that it completely closes the opening of the building in accordance with the sleep time set by the setting unit, and adjusts the opening and closing speed according to the difference in brightness of the room obtained based on the illuminance of the room detected by the illuminance detection unit, thereby transitioning the room from a bright state to a dark state.

2. The light-collecting amount adjustment system according to claim 1, wherein the control unit controls the light-collecting amount adjustment unit to drive it from an open state to a closed state in stages.

3. The light-collecting amount adjustment system according to claim 1 or 2, wherein the control unit controls the operation of the light-collecting amount adjustment unit to start in accordance with the sleep time set by the setting unit.

4. The setting unit allows you to set the wake-up time, The light-daylight adjustment system according to any one of claims 1 to 3, wherein the control unit controls the light-daylight adjustment unit to drive the light-daylight adjustment unit from a closed state to an open state in accordance with the wake-up time set by the setting unit, at an opening and closing speed slower than the opening and closing speed when controlling the opening and closing operation of the light-daylight adjustment unit in accordance with the wake-up time set by the setting unit.

5. The light-gathering amount adjustment unit is a shutter device, according to any one of claims 1 to 4.

Citation Information

Patent Citations

  • Shading means control

    EP2357544A2

  • Opening and shutting controller for slit-equipped shutter

    JP1993340174A

  • Daylight adjustment device

    JP1996060955A

  • Sleep environment adjusting system and method

    JP2007044201A

  • Daylighting device

    JP2009295355A