Circadian rhythm correction system

Abstract

To provide a circadian rhythm correction system that can prevent disturbance to the sleep environment of others.SOLUTION: A circadian rhythm correction system includes a rhythm estimation unit that estimates the circadian rhythms of each of multiple users who use building 1, a first identification unit that can identify a user with a shifted circadian rhythm from among the multiple users on the basis of the circadian rhythm estimated by the rhythm estimation unit, a second identification unit that can identify a user who has woken up from among the multiple users, a correction device 11 that is installed in a personal space in the building 1 that is used by an individual and can correct the circadian rhythm, and a control unit 16 that operates the correction device 11 to correct the shift in circadian rhythm when it is determined that a user with a shifted circadian rhythm has woken up on the basis of the identification results of the first and second identification units.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a technology for a circadian rhythm correction system that can correct the circadian rhythms of building occupants. [Background technology]

[0002] Conventionally, technology for a circadian rhythm correction system capable of correcting the circadian rhythm (body clock) of building users has been publicly known, as described in Patent Document 1, for example.

[0003] The biorhythm control system described in Patent Document 1 includes a biorhythm extraction unit that extracts a user's biorhythm, and a stimulus presentation unit that presents stimuli (light, sound, etc.) to the user. In the biorhythm control system, the control content of the stimulus presentation unit is determined based on the user's biorhythm extracted by the biorhythm extraction unit. The stimulus presentation unit can control the user's biorhythm by providing stimuli to the user in accordance with the control content. For example, the stimulus presentation unit can correct deviations in circadian rhythms due to jet lag.

[0004] In a system such as that described in Patent Document 1, when stimulating a subject whose circadian rhythm is to be controlled, there is a risk that other people will also be stimulated (disturbing the environment of others). For example, there is a risk that light directed at the subject may also hit other people. In this case, there is a risk that the other people will be awakened and their sleep environment will be disturbed. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 5-15595 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and the problem to be solved is to provide a circadian rhythm correction system that can prevent the sleep environment of others from being disturbed. [Means for solving the problem]

[0007] The problem to be solved by the present invention is as described above, and the means for solving this problem will now be described.

[0008] That is, in claim 1, the building comprises a rhythm estimation unit that estimates the circadian rhythms of each of a plurality of users who use the building; a first identification unit that can identify a user from the plurality of users whose circadian rhythm is out of sync based on the circadian rhythm estimated by the rhythm estimation unit; a second identification unit that can identify a user from the plurality of users who has woken up; a correction device that is installed in a personal space in the building that is used by an individual and can correct the circadian rhythm; and a control unit that operates the correction device to correct the circadian rhythm deviation when it is determined that the user with the circadian rhythm is woken up based on the identification results of the first identification unit and the second identification unit.

[0009] In claim 2, the personal space includes a toilet room.

[0010] In claim 3, the building further includes an illuminance sensor that detects the illuminance of a common space that can be used by multiple people at the same time, and the control unit determines whether to operate the correction device depending on the illuminance detected by the illuminance sensor.

[0011] In claim 4, the common space includes at least one of a bedroom and a living room used by the plurality of users. It is something.

[0012] In claim 5, the device further includes a human presence sensor capable of detecting the presence of a person in the personal space, and the control unit determines that the user with an out-of-sync circadian rhythm has woken up, and when the human presence sensor detects the presence of a person, operates the correction device to correct the out-of-sync circadian rhythm.

[0013] In claim 6, the device further includes a third identification unit that identifies a user who will use the personal space from among the multiple users, and the control unit operates the correction device to correct the circadian rhythm deviation when it determines, based on the identification results of the second identification unit and the third identification unit, that a user with a circadian rhythm deviation will use the personal space. [Effects of the Invention]

[0014] The present invention has the following effects.

[0015] According to claim 1, it is possible to prevent disturbance to the sleeping environment of others.

[0016] In claim 2, the circadian rhythm can be corrected in the toilet room.

[0017] According to claim 3, energy saving can be improved.

[0018] In claim 4, the circadian rhythm can be corrected by using the light in the bedroom or living room.

[0019] According to claim 5, the correction device can be operated when necessary, thereby effectively improving energy conservation.

[0020] In claim 6, the correction device can be activated when a user with a circadian rhythm that is out of sync is in a personal space, thereby effectively preventing the sleep environment of others from being disturbed and effectively improving energy efficiency. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a schematic diagram showing the overall configuration of a circadian rhythm correction system according to an embodiment of the present invention and a building to which the circadian rhythm correction system is applied. [Figure 2] FIG. 1 is a block diagram showing a circadian rhythm correction system. [Figure 3] 10 is a flowchart showing a correction device control process. [Figure 4] 10 is a flowchart showing a lighting control process. DETAILED DESCRIPTION OF THE INVENTION

[0022] A circadian rhythm correction system 10 according to one embodiment of the present invention will be described below.

[0023] Circadian rhythms, also known as the body clock, are bodily rhythms that fluctuate on a roughly 25-hour cycle. Examples of circadian rhythms include the sleep-wake rhythm, body temperature rhythm, and blood pressure rhythm. If this circadian rhythm becomes too out of sync, it can have a negative impact on your life, such as making it difficult to wake up in the morning. However, stimulating the body can reset (correct) the circadian rhythm.

[0024] For example, within a predetermined time after waking up, the circadian rhythm can be reset by changing the alertness level by being exposed to light from a lamp or listening to a sound. The circadian rhythm correction system 10 corrects the circadian rhythm of a user by controlling a correction device 11 that can correct (reset) such circadian rhythm. The correction device 11 is a device that can output something (light, sound, vibration, fragrance, etc.) that changes the alertness level of the user. Examples of the correction device 11 include lighting, speakers, vibration generators, fragrance diffusers, etc.

[0025] First, a brief description will be given of the building 1 used by users. In this embodiment, the building 1 is assumed to be a house where users live. It is also assumed that there are multiple users (residents). The building 1 has multiple rooms. FIG. 1 shows a living room 2, a bedroom 3, and a toilet 4 as examples of rooms. In the bedroom 3 of this embodiment, multiple users sleep. Lights 2a, 3a, and 4a are installed in the living room 2, bedroom 3, and toilet 4, respectively.

[0026] 1 and 2, a circadian rhythm correction system 10 will be described. The circadian rhythm correction system 10 includes a correction device 11, an illuminance sensor 12, a human presence sensor 13, a personal identification unit 14, a sleep data acquisition unit 15, and a control unit 16.

[0027] As described above, the correction device 11 is a device that outputs light or the like that can correct circadian rhythms. The correction device 11 has a communication function and is configured to be remotely controllable. The correction device 11 is installed in a space in the building 1 that is used by individuals (hereinafter referred to as "personal space").

[0028] A personal space is a space that is expected to be used by one person. A personal space is also a space that is expected to be used by a user who wakes up within the time that the circadian rhythm can be reset. Examples of such personal spaces include the toilet room 4, a washroom, and the user's private room. In this embodiment, the correction device 11 is a light 11a added to the toilet room 4 in addition to the light 4a used when the toilet room 4 is in use. Hereinafter, this light 11a will be referred to as the "additional light 11a." When the additional light 11a is turned on, the toilet room 4 becomes bright enough to reset the circadian rhythm.

[0029] The configuration of the corrector 11 is not limited to that of this embodiment. For example, if the light 4a in the toilet room 4 has an adjustable light intensity and the illuminance of the toilet room 4 can be increased by adjusting the light intensity to a degree that resets the circadian rhythm, the light 4a with adjustable light intensity may be used as the corrector 11. The corrector 11 may also correct the circadian rhythm by a method other than light irradiation (for example, sound output, etc.). The corrector 11 may also be installed in a personal space other than the toilet room 4 (for example, a washroom, etc.).

[0030] The illuminance sensor 12 is capable of detecting the illuminance of a room. The illuminance sensor 12 is installed in a common space in the building 1. A common space is a space that can be used by multiple people at the same time. The common space is also a space that is expected to be used by users who wake up within the time that allows their circadian rhythms to be reset. Examples of such common spaces include the bedroom 3, living room 2, and hallway that are used by multiple users. Note that in this embodiment, the illuminance sensor 12 is installed in the bedroom 3 and living room 2, but the installation location of the illuminance sensor 12 is not limited to this embodiment.

[0031] The human presence sensor 13 is capable of detecting the presence of a person. The human presence sensor 13 is installed in the same place as the correction device 11 (personal space, in this embodiment, the toilet room 4).

[0032] The individual identification unit 14 shown in Fig. 2 is capable of identifying (identifying) which user is a particular user among a plurality of users. The individual identification unit 14 is configured to be able to identify at least users who enter and leave the place (toilet room 4) where the correction device 11 is installed. The method for identifying a user is not particularly limited. For example, the individual identification unit 14 may be configured to identify a user by authenticating the face of a person who enters and leaves the toilet room 4.

[0033] The sleep data acquisition unit 15 can acquire information related to the user's sleep (sleep data). Sleep data is information that changes depending on the state (pattern and quality) of sleep. Sleep data includes body temperature, electrocardiogram, pulse rate, etc. The sleep data acquisition unit 15 can acquire sleep data for each user. More specifically, the sleep data acquisition unit 15 can store information (identification information) according to the user and the acquired results of the sleep data in association with each other.

[0034] 1 and 2 estimates the user's circadian rhythm based on the sleep data acquired by the sleep data acquisition unit 15, and controls the correction device 11 based on the result. The control unit 16 includes a calculation unit capable of executing calculation processing, and a storage unit for storing various information. The control unit 16 is configured, for example, by a general personal computer.

[0035] The control unit 16 is connected to various devices of the circadian rhythm correction system 10. More specifically, the control unit 16 is connected to the correction device 11 and can control the correction device 11 by outputting a signal to the correction device 11. In this embodiment, the control unit 16 can output a signal to the correction device 11 to switch between a state in which the additional light 11a is turned on and a state in which the additional light 11a is turned off.

[0036] The control unit 16 is connected to the illuminance sensor 12 and can obtain a detection result of the illuminance in the common space (living room 2, bedroom 3) based on a signal from the illuminance sensor 12. The control unit 16 is also connected to the human presence sensor 13 and can obtain a detection result of the presence of a person in the toilet room 4 based on a signal from the human presence sensor 13. The control unit 16 is also connected to the individual identification unit 14 and can obtain a result of identifying a person entering or leaving the toilet room 4 based on a signal from the individual identification unit 14. The control unit 16 can also determine which of multiple users is present in the toilet room 4 by combining the detection result of the human presence sensor 13 and the identification result of the individual identification unit 14.

[0037] The control unit 16 is connected to the sleep data acquisition unit 15 and can obtain sleep data acquired by the sleep data acquisition unit 15 based on a signal from the sleep data acquisition unit 15. The control unit 16 can estimate the circadian rhythm for each user based on the sleep data. The method for estimating the circadian rhythm is not particularly limited and can be changed as appropriate depending on the sleep data acquired by the sleep data acquisition unit 15. For example, if the sleep data acquisition unit 15 acquires body temperature, the control unit 16 may estimate the circadian rhythm by creating a graph of the body temperature over time. Alternatively, if the sleep data acquisition unit 15 acquires multiple pieces of information (body temperature, blood pressure, heart rate, etc.), the control unit 16 can also estimate the circadian rhythm by combining the multiple pieces of information.

[0038] An example of control of the correction device 11 by the control unit 16 will be described below with reference to Figs. 3 and 4. The process shown in Fig. 3 is a flowchart showing an example of a correction device control process for controlling the correction device 11 according to the result of estimating the circadian rhythm. The control unit 16 repeatedly executes the correction device control process. When the control unit 16 starts the correction device control process, the process proceeds to step S10.

[0039] In step S10, the control unit 16 acquires sleep data of a plurality of users from the sleep data acquisition unit 15. When the process of step S10 ends, the control unit 16 proceeds to step S20.

[0040] Here, a common space such as the living room 2 may have sufficient illumination for waking up due to sunlight or the like. In this case, the user can reset their circadian rhythm by being exposed to light in the common space without operating the correction device 11. Therefore, in step S20, the control unit 16 checks the illumination level of the common space and determines whether to perform subsequent processing based on the detected illumination level. For example, the control unit 16 acquires the results of detecting the illumination levels in the living room 2 and bedroom 3 (common spaces) from the illumination sensor 12. If at least one of the detection results is equal to or greater than a predetermined threshold (step S20: YES), the control unit 16 terminates the correction device control processing. On the other hand, if all of the detection results are less than the threshold (step S20: NO), the control unit 16 proceeds to step S30. The threshold is set to an illumination level (e.g., 3000 Lx) that allows the circadian rhythm to be reset. Thus, if the control unit 16 determines that the circadian rhythm cannot be reset in the common space (step S20: NO), it performs the processing from step S30 onward and appropriately operates the correction device 11.

[0041] In step S30, the control unit 16 estimates the circadian rhythm based on the sleep data acquired in step S10 and detects a deviation in the circadian rhythm based on the estimation result. In this case, the control unit 16 detects a deviation in the circadian rhythm for each user. The control unit 16 also detects (identifies) users whose circadian rhythms are deviated to the extent that resetting the circadian rhythm is desirable. The method for detecting a deviation in the estimation result is not particularly limited. For example, the control unit 16 may detect a deviation in the circadian rhythm based on the results of comparing reference data serving as a reference for the circadian rhythm with the estimated circadian rhythm. The reference data is an index that can determine whether or not the circadian rhythm is deviated. The reference data may be appropriately set based on, for example, the results of a prior estimation of the circadian rhythm based on sleep data from a day when the user's circadian rhythm is not deviated. After completing the processing of step S30, the control unit 16 proceeds to step S40.

[0042] In step S40, if one or more users with misaligned circadian rhythms are detected in step S30 (step S40: YES), the control unit 16 proceeds to step S50. On the other hand, if no such users are detected (step S40: NO), the control unit 16 ends the correction device control process.

[0043] In step S50, the control unit 16 determines whether the user with a shifted circadian rhythm (the user detected in step S30) has woken up. If the control unit 16 determines that the user has woken up (step S50: YES), the control unit 16 proceeds to step S60. On the other hand, if the control unit 16 does not determine that the user has woken up (step S50: NO), the control unit 16 proceeds again to step S50.

[0044] The method for determining whether the user has woken up is not particularly limited. In this embodiment, since the sleep data acquisition unit 15 can acquire sleep data for each user, it may be determined whether the user has woken up based on the sleep data. For example, the control unit 16 may communicate with the sleep data acquisition unit 15 to repeatedly acquire the body temperature and pulse rate (sleep data) of a user whose circadian rhythm is out of sync, and determine whether the user has woken up based on changes in the body temperature, etc.

[0045] In step S60, the control unit 16 starts a lighting control process for controlling the additional lights 11a, and then proceeds to step S70. The control unit 16 waits for a certain period of time in step S70. After the certain period of time has elapsed, the control unit 16 proceeds to step S80 and ends the lighting control process. The lighting control process will be described below with reference to FIGS. 3 and 4.

[0046] In the lighting control process shown in Fig. 4, steps S110 to S140 are repeated until X minutes have continued (elapsed). Since the circadian rhythm deviation cannot be reset unless within a predetermined time after waking up, X minutes is set to a time that does not exceed this predetermined time. In this embodiment, X minutes is set to 60 minutes.

[0047] When the control unit 16 starts the lighting control process in the process of step S60 shown in FIG. 3, the control unit 16 proceeds to step S110. In step S110, the control unit 16 determines whether or not a person is present in the toilet room 4 based on the detection result of the human presence sensor 13. As described above, in this embodiment, the human presence sensor 13 and the individual identification unit 14 can identify a user who is present (will use) the toilet room 4 from among multiple users. Therefore, in step S110, the control unit 16 in this embodiment determines whether or not a user with a shifted circadian rhythm is present in the toilet room 4. If the control unit 16 determines that the user is present in the toilet room 4 (step S110: YES), the control unit 16 proceeds to step S120. On the other hand, if the control unit 16 determines that the user is not present in the toilet room 4 (step S110: NO), the control unit 16 proceeds again to step S110.

[0048] In step S120, the control unit 16 outputs a signal to the additional light 11a (correction device 11) to operate the additional light 11a to reset (correct) the deviation in circadian rhythm. Specifically, the control unit 16 turns on the additional light 11a. This allows the control unit 16 to brighten the toilet room 4 to an extent that the deviation in circadian rhythm can be reset. When the processing of step S120 ends, the control unit 16 proceeds to step S130.

[0049] In step S130, the control unit 16 determines whether or not a person has left the toilet room 4 based on the detection result of the human presence sensor 13. If the control unit 16 determines that a person has left the toilet room 4 (step S130: YES), the control unit 16 proceeds to step S140. On the other hand, if the control unit 16 determines that a person has not left the toilet room 4 (step S130: NO), the control unit 16 proceeds again to step S130.

[0050] In step S140, the control unit 16 outputs a signal to the additional light 11a to turn off the additional light 11a. The control unit 16 repeats steps S110 to S140 described above until X minutes or more have elapsed since the start of the lighting control process (step S70 in FIG. 3). Furthermore, when the elapsed time has reached X minutes or more, the control unit 16 ends the lighting control process.

[0051] According to the correction device control process, the control unit 16 can brighten the toilet room 4 to a degree that can reset the circadian rhythm deviation while the user with a circadian rhythm deviation is using the toilet room 4 (steps S110 to S140). It can also prevent the light from the additional lighting 11a from shining on other users who do not have a circadian rhythm deviation. In this way, the control unit 16 can turn on the additional lighting 11a at an appropriate timing in the user's personal space, thereby preventing the sleep environment of other users from being disturbed.

[0052] As described above, common spaces such as the living room 2 may have sufficient illumination due to sunlight or the like to wake the user up. In this case, even if a user has an out-of-sync circadian rhythm, the user can reset their circadian rhythm in the living room 2 or the like. Therefore, if the illumination in the living room 2 or the like is high (step S20: YES), the control unit 16 skips the process of step S60, which turns on the additional light 11a. This reduces the number of times the additional light 11a is turned on, thereby improving energy efficiency.

[0053] As described above, the circadian rhythm correction system 10 of this embodiment comprises a rhythm estimation unit (control unit 16) that estimates the circadian rhythms of each of multiple users who use the building 1; a first identification unit (control unit 16) that can identify users whose circadian rhythms are out of sync from among the multiple users based on the circadian rhythms estimated by the rhythm estimation unit; a second identification unit (sleep data acquisition unit 15 and control unit 16) that can identify users who have woken up from among the multiple users; a correction device 11 that is installed in a personal space (toilet room 4) in the building 1 and is capable of correcting the circadian rhythm; and a control unit 16 that operates the correction device 11 to correct the circadian rhythm deviation when it is determined that the user whose circadian rhythm is out of sync has woken up based on the identification results of the first identification unit and the second identification unit (step S50: YES).

[0054] This configuration can prevent the sleep environment of others from being disturbed. For example, it can prevent light from the corrector 11 from shining on others outside the personal space and waking them up (disturbing the sleep environment). In addition, by not operating the corrector 11 when it is not necessary (when a user with an out-of-sync circadian rhythm has not woken up), energy conservation can be improved.

[0055] The personal space also includes the toilet room 4.

[0056] By configuring in this way, the circadian rhythm can be corrected in the toilet room 4.

[0057] The building 1 further includes an illuminance sensor 12 that detects the illuminance of a common space (living room 2 and bedroom 3) that can be used by multiple people at the same time, and the control unit 16 determines whether to operate the correction device 11 (perform the lighting control processing of Figure 4) depending on the illuminance detected by the illuminance sensor 12 (step S20).

[0058] By configuring in this way, energy saving can be improved.

[0059] The common space includes at least one of a bedroom 3 and a living room 2 that are used by the plurality of users.

[0060] By configuring in this way, it is possible to correct the circadian rhythm by using the light from the bedroom 3 or the living room 2.

[0061] The device further includes a human presence sensor 13 capable of detecting the presence of a person in the personal space, and the control unit 16 determines that the user with an out-of-sync circadian rhythm has woken up (step S50: YES), and when the human presence sensor 13 detects the presence of a person (step S110: YES), it operates the correction device 11 to correct the out-of-sync circadian rhythm (step S120).

[0062] By configuring it in this way, the correction device 11 can be operated when necessary (when a user with an out-of-sync circadian rhythm wakes up and there is someone in the personal space), thereby effectively improving energy efficiency.

[0063] The system further includes a third identification unit (human sensor 13, personal identification unit 14, control unit 16) that identifies the user who will use the personal space from among the multiple users, and when the control unit 16 determines, based on the identification results of the second identification unit and the third identification unit, that the user with a shifted circadian rhythm will use the personal space (step S110: YES), it operates the correction device 11 to correct the shift in circadian rhythm (step S120).

[0064] By configuring in this way, it is possible to effectively prevent disturbance to the sleeping environment of others and to effectively improve energy saving.

[0065] The control unit 16 according to this embodiment is an embodiment of the rhythm estimation unit and the first identification unit according to the present invention. The sleep data acquiring unit 15 and the control unit 16 according to this embodiment are an embodiment of a second identifying unit according to the present invention. Moreover, the toilet room 4 according to this embodiment is one embodiment of the personal space according to the present invention. Moreover, the living room 2 and the bedroom 3 according to this embodiment are one embodiment of a common space according to the present invention. The human sensor 13, the individual identifying unit 14, and the control unit 16 according to this embodiment are an embodiment of a third identifying unit according to the present invention.

[0066] Although an embodiment of the present invention has been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention as set forth in the claims. For example, the control according to this embodiment is one example, and the control executed by the circadian rhythm correction system 10 is not limited to the above example, and any processing may be added or modified.

[0067] For example, if the user's circadian rhythm is reset by the additional lighting 11a, there is no need to turn on the additional lighting 11a thereafter, so the lighting control process in Fig. 4 may be modified to limit the number of times the process of step S120 for turning on the additional lighting 11a is executed (for example, to execute it only once). This makes it possible to prevent the additional lighting 11a from being turned on when it is not necessary, thereby improving energy efficiency.

[0068] Furthermore, the lighting control process of this embodiment continues until X minutes have elapsed since the first user with a deviated circadian rhythm woke up (since the lighting control process began) (step S50: YES, steps S60, S110 to S140). However, it is possible that another user with a deviated circadian rhythm may wake up while this lighting control process is ongoing. In this case, if the lighting control process can be continued for X minutes after the other user wakes up, sufficient time for the lighting control process can be ensured. This prevents the lighting control process from ending before the other user uses their personal space.

[0069] Therefore, the lighting control process may be changed so that it continues depending on the wake-up status of other users with shifted circadian rhythms. For example, while the lighting control process is continuing, it may be monitored whether the other users have woken up, and if it is detected that the other users have woken up, the lighting control process may continue until X minutes have passed since the other users woke up.

[0070] 3, the correction device control process is terminated when "at least one" of the detection results of the illuminance in the living room 2 or the bedroom 3 is equal to or greater than a predetermined threshold value. However, it is also possible to modify the process of step S20. For example, it is also possible to modify the process of step S20 so that the correction device control process is terminated when "all" of the detection results are equal to or greater than the threshold value. This makes it possible to correct a deviation in the circadian rhythm by turning on the additional lighting 11a when some spaces among the common spaces are relatively dark (to the extent that the circadian rhythm cannot be reset).

[0071] Furthermore, the specific numerical values ​​given above are merely examples and can be changed as desired.

[0072] In addition, in this embodiment, an example is shown in which the building 1 to which the circadian rhythm correction system 10 is applied is a residence, but the present invention is not limited to this. The building 1 is not limited to a residence, and various buildings 1 such as accommodation facilities, elderly care facilities, nursing homes, hospitals, etc. can be used.

[0073] Furthermore, the circadian rhythm correction system 10 only needs to activate the correction device 11 when a user with a misaligned circadian rhythm wakes up, and it is possible to include devices not described in this embodiment or to omit some of the devices described in this embodiment. For example, the circadian rhythm correction system 10 can omit the individual identification unit 14 that identifies people entering and leaving the toilet room 4. In this case, the control unit 16 can omit processing related to the individual identification unit 14 in the lighting control process (step S110) shown in FIG. 4.

[0074] In addition, in this embodiment, the circadian rhythm is estimated by the control unit 16, but this is just an example, and the circadian rhythm may be estimated by a device different from the control unit 16. In this embodiment, the control unit 16 detects (identifies) a user with a shifted circadian rhythm, but this is just an example, and a device different from the control unit 16 may detect a user with a shifted circadian rhythm. [Explanation of symbols]

[0075] 1. Building 4 Toilet Room 10 Circadian rhythm correction system 11 Correction equipment 15 Sleep data acquisition unit 16 Control Unit

Claims

1. a rhythm estimation unit that estimates the circadian rhythms of each of a plurality of users who use the building; a first identification unit that can identify a user having a circadian rhythm deviation from among the plurality of users based on the circadian rhythm estimated by the rhythm estimation unit; a second identification unit capable of identifying a user who has woken up from among the plurality of users; a correction device that is installed in a personal space in the building and that is capable of correcting the circadian rhythm; a control unit that, when determining that the user with a circadian rhythm deviation has woken up based on the identification results of the first identification unit and the second identification unit, operates the correction device to correct the circadian rhythm deviation; Equipped with Circadian rhythm correction system.

2. The personal space includes: Toilet room included, The circadian rhythm correction system according to claim 1 .

3. The building further includes an illuminance sensor for detecting illuminance in a common space that can be used by multiple people at the same time, The control unit determining whether to operate the correction device according to the illuminance detected by the illuminance sensor; 3. The circadian rhythm correction system according to claim 1.

4. The common space includes: At least one of a bedroom or a living room used by the plurality of users is included, The circadian rhythm correction system according to claim 3 .

5. Further comprising a human presence sensor capable of detecting the presence of a person in the personal space; The control unit determining that the user with a circadian rhythm deviation has woken up and, when the human presence sensor detects the presence of a person, operating the correction device to correct the circadian rhythm deviation; 3. The circadian rhythm correction system according to claim 1.

6. Further, a third identification unit is provided to identify a user who uses the personal space from among the plurality of users, The control unit When it is determined based on the identification results of the second identification unit and the third identification unit that the user with a circadian rhythm deviation will use the personal space, operating the correction device to correct the circadian rhythm deviation.

3. The circadian rhythm correction system according to claim 1.

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