JP2023063505A - Sleep state evaluation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sleep state evaluation device or the like for objectively detecting a sleep state of a sleeping person (measured person) in a simple method so as to evaluate quality of sleep of a measured person from a sleep state.

SOLUTION: A sleep state evaluation device includes: sleep state preservation means for preserving a sleep state indicating one of at least three states that are bed-leaving, sleeping, and awakening as states of a measured person; calculation means for calculating a daytime on-bed time and a daytime sleep time on the basis of a preserved sleep state; and evaluation means for evaluating quality of sleep of a measured person on the basis of a daytime on-bed time and a daytime sleep time.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to a sleep state evaluation device.

2. Description of the Related Art Conventionally, various methods are known for determining a sleeping state of a person to be measured for health management of the person to be measured. As representative methods, sleep polysomnography (PSG; Polysomnography), actigraph, and the like are known.

As an example, a method for determining the sleep state of a person to be measured in real time is disclosed in, for example, Patent Document 1. That is, the body motion (body motion) of the person to be measured is detected, and if the body motion level exceeds the determination threshold within a predetermined detection time, the sleep state is determined to be "awake", and if it is less than that, is determined as "sleep".

A device that evaluates a sleeper's sleep by using such technology is known. For example, there is known a technique of giving sleep-related health management advice based on sleep state and lifestyle rhythm information input by the person (see, for example, Patent Document 2).

JP 2008-142238 A JP 2008-071263 A

However, as described above, for example, the method in which the user (sleeper) self-reports the life rhythm and measures the life rhythm based on the self-report has the problem that it takes time for the user to answer. Furthermore, in the case of self-reporting, an objective life rhythm is not determined, so there is a problem that an appropriate evaluation of the sleeping state cannot always be performed.

In particular, when trying to objectively evaluate daily life rhythms and sleep conditions, conventionally, there is no choice but to use a wearable posture detection means, and the user must always wear the posture detection means during the evaluation. did not become.

In addition, if the patient is wearing a posture detection device, it will detect that he/she has fallen asleep even if he/she is lying down in a place other than the bed because he or she is wearing it all day long. There was a problem that

In view of the above-described problems, an object of the present invention is to objectively detect the sleep state of a sleeping person (person to be measured) and evaluate the sleep quality of the person to be measured from the sleep state by a simple method. to provide the equipment.

In order to solve the above-described problems, the sleep state evaluation apparatus of the present invention includes a calculation means for calculating a daytime sleep time based on at least a sleep state indicating sleep or wakefulness as a state of a person to be measured; evaluation means for evaluating the sleep quality of the person to be measured at night based on the sleep time during the day.

At least a sleep state indicating any one of the three states of getting out of bed, sleep, and wakefulness is set as the subject's state, and based on the saved sleep state, the time in bed during the day and the sleep time during the day can be calculated, and the quality of sleep of the subject can be evaluated based on the time in bed during the day and the sleep time during the day.

It is a figure which shows the external appearance of the sleep state evaluation apparatus and sleep state determination apparatus in this embodiment. It is a figure which shows the external appearance of the sleep state evaluation apparatus and sleep state determination apparatus in this embodiment. It is a figure which shows the functional structure of the sleep state determination apparatus in this embodiment. It is a figure which shows the functional structure of the sleep state evaluation apparatus in this embodiment. It is a figure for demonstrating the data structure of the sleep state historical information in this embodiment. It is a figure for demonstrating the data structure of the sleep situation table in this embodiment. It is a figure for demonstrating the data structure of the advice table in this embodiment. It is a figure for demonstrating the data structure of the evaluation table in this embodiment. It is an operation flow for explaining the operation of the main processing in this embodiment. It is an operation flow for explaining the operation of sleep state evaluation processing in the present embodiment. It is an operation flow for explaining the operation of night sleep time evaluation processing in the present embodiment. It is an operation flow for explaining the operation of life rhythm evaluation processing in the present embodiment. It is an operation flow for explaining the operation of evaluation report output processing in the present embodiment. It is the figure which showed an example of the evaluation report in this embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described below with reference to the drawings.
[1. System appearance]
FIG. 1 is a diagram for explaining how to use the sleep evaluation device 1. As shown in FIG. The sleep state evaluation device 1 is an information processing device (such as a computer) having a function of evaluating a sleep state by receiving the sleep state from the sleep state determination device 2 .

Also, the sleep state determination device 2 is placed between the floor of the bed 10 and the mattress 20 . When a person to be measured (for example, a sleeping person) P lies on the mattress 20 , the sleep state determination device 2 detects body movements (vibrations) of the person to be measured P via the mattress 20 . Based on the detected vibration, it is determined whether the person is out of bed or in bed, and when it is determined that the person is in bed, the amount of activity is calculated, and the sleep state is determined based on the amount of activity. Then, the determined sleep state is transmitted to the sleep state evaluation device 1 via radio. The sleep state evaluation device 1 can evaluate the sleep state of the person P to be measured.

Here, the sleep state determination device 2 is configured in a sheet shape so as to be thin. As a result, even if the subject P is placed between the bed 10 and the mattress 20, the subject P can be used without feeling uncomfortable.

FIG. 2 is a diagram for explaining an outline of a sleep state evaluation system 9 to which the present invention is applied. As described in FIG. 1, in the present embodiment, the sleep state evaluation device 1 and the sleep state determination device 2 are connected wirelessly. For example, they are connected by wireless communication such as IEEE802.11b, Bluetooth (registered trademark), ZigBee (registered trademark), or wired communication. Also, by incorporating a mobile phone module, connection may be made via a network such as a mobile phone network. Alternatively, the sleep state evaluation device 1 may acquire the sleep state through a recording medium (such as an SD card) without directly communicating with the sleep state determination device 2 .

The sleep state determination device 2 includes a body section 50 and a measurement section 60 . Here, the measurement unit 60 can be folded. This improves the portability of the sleep state determination device 2 .

A communication unit 230 is built in the body unit 50 . Although the details of the communication unit 230 will be described later, various data and states are transmitted to the sleep evaluation device 1 via the communication unit 230 . In addition, the measurement section 60 is provided with a vibration detection section 210 .

In the present embodiment, the sleep state evaluation device 1 will be described using a computer. good.

[2. Functional configuration]
Next, the mechanical configurations of the sleep state evaluation device 1 and the sleep state determination device 2 will be described with reference to the drawings.

[2.1 Sleep state determination device]
First, the sleep state determination device 2 that determines the sleep state received by the sleep state evaluation device 1 will be described. In the sleep state determination device 2, a control unit 200 is connected to a vibration detection unit 210, a storage unit 220, a communication unit 230, and an activity amount calculation unit 240 via a bus.

The control unit 200 is a functional unit for controlling the operation of the sleep state determination device 2, and is composed of a control circuit necessary for the sleep state determination device 2, such as a CPU. The control unit 200 implements various processes by reading and executing various programs stored in the storage unit 220 .

The vibration detection section 210 is a sensor section for detecting the vibration of the subject. For example, the vibration detection unit 210 may detect vibration (body movement) of the person being measured using a pressure sensor, or may detect the load (body movement) of the person being measured using a load sensor. Alternatively, by providing a microphone, vibration (body movement) may be detected based on the sound picked up by the microphone.

The storage unit 220 is a functional unit that stores various data and programs for the sleep state determination device 2 to operate. The control unit 200 implements various functions by reading and executing programs stored in the storage unit 220 . Here, the storage unit 220 is configured by, for example, a semiconductor memory.

Also, the storage unit 220 may be connectable to an external recording medium. That is, the sleep state determined by the sleep state determination unit 250, which will be described later, is recorded in the recording medium.

The communication unit 230 is a functional unit for transmitting and receiving data to and from the sleep evaluation device 1 connected via a network. Examples of the communication unit 230 include a wired connection, a Bluetooth communication unit, and a wireless device such as a wireless LAN adapter.

The activity amount calculation unit 240 is a functional unit for calculating the activity amount of the person to be measured from the vibration detected by the vibration detection unit 210 . Here, there are various methods for calculating the amount of activity. The intensity of the detected vibration may be calculated as the amount of activity.

In addition, as the activity amount to be output by the activity amount calculation unit 240, for example, the output value may be output as it is as the activity amount, or the amount of change in the output value, the output value, or the amount of change in the output value is predetermined. (For example, if it exceeds the threshold, "1", if it is equal to or less than the threshold, "0") may be output, or whether the output value has changed across a predetermined value range may be output. .

The sleep state determination unit 250 is a functional unit for determining a sleep state based on the activity amount calculated by the activity amount calculation unit 240 . For example, the current sleep state is determined using the amount of activity up to 4 minutes before the reference time for determining the sleep state, and is transmitted to the sleep state evaluation apparatus 1 via the communication unit 230 .

Here, the sleep states determined in the present embodiment are "sleep" in which the subject is in a sleeping state, "awake" in which the subject is in an awake state, and when the subject is out of bed. "Getting out of bed" is determined. That is, when it is determined that the user is "sleep" and "wake", the user is in bed.

[2.2 Sleep evaluation device]
Next, the functional configuration of the sleep state evaluation device 1 will be described with reference to FIG. 4 . In the sleep evaluation device 1, a communication unit 110, a storage unit 120, an input unit 150, and a display unit 160 are connected to the control unit 100 via a bus.

The control unit 100 is a functional unit for controlling the operation of the sleep state evaluation device 1, and is composed of a control circuit necessary for the sleep state evaluation device 1, such as a CPU. The control unit 100 implements various processes by reading and executing various programs stored in the storage unit 120 .

The communication unit 110 is a functional unit for receiving data from the sleep state determination device 2 and is composed of a device (interface) capable of communicating with the communication unit 230 .

The storage unit 120 is a functional unit that stores various data and programs for operating the sleep evaluation device 1 . The control unit 100 implements various functions by reading and executing programs stored in the storage unit 120 . Here, the storage unit 120 is configured by, for example, a semiconductor memory, a magnetic disk device, or the like.

The storage unit 120 also stores sleep state history information 122, a sleep situation table 124, an advice table 126, and an evaluation table 128. FIG.

The sleep state history information 122 is information about sleep states input (received) from the sleep state determination device 2 . For example, as shown in FIG. 5, sleep states are stored for each date and time.

In the present embodiment, sleep states are stored every one minute, but may be stored at predetermined time intervals such as every 30 seconds or every two minutes.

Also, for example, the time interval with the same sleep state is lengthened (for example, every 1 minute if "sleep" is continuous), and the time interval is shortened when the sleep state changes (for example, every 1 second ) may be used.

The sleep situation table 124 is a table that stores daily sleep situations based on the sleep state history information 122 . For example, as shown in FIG. 6, for each date, sleep time (eg, "365 minutes"), time until falling asleep (eg, "13 minutes"), and sleep efficiency (eg, "92.6%") ), the time of waking up during sleep (for example, “14 minutes”), and the number of times of getting out of bed (for example, “once”).

Here, sleep time refers to the total time of sleep time from bedtime to wake-up time, and falling asleep is the time from bedtime to the first appearance of sleep (for example, lasting for 10 minutes or more). The time until the beginning of the sleep interval to be performed).

In addition, the wake-up time is the total wake-up time from falling asleep (the first sleep segment calculated by falling asleep) to falling asleep (the nearest sleep segment from the time of waking up). It is the ratio of sleep time in the time from the time to the wake-up time.

The advice table 126 is a table that stores advice to be output to the evaluation report. For example, as shown in FIG. 7, an advice code (advice code) and an advice message are stored. The control unit 100 can output an appropriate advice message by referring to the advice code.

The evaluation table 128 is a table used when evaluating the sleep state. For example, as shown in FIG. 8, evaluation items are stored together with thresholds for each evaluation score. Further, an advice code (selected advice) selected as an advice message to be displayed and an advice code (highlighted advice) highlighted when a predetermined score is obtained are stored.

Although the details will be described later, for example, when calculating the "daytime sleep time evaluation score", the daytime sleep time is used as a parameter. And if the sleep time during the day is less than 30 minutes, "5" points, if it is 30 minutes or more and less than 45 minutes, it is "4" points, if it is 45 minutes or more and less than 60 minutes, it is "3" points, and 60 minutes. A score of "2" is calculated for more than 75 minutes, a "1" point for 75 minutes or more and less than 90 minutes, and a "0" point for 90 minutes or more.

If the score is less than or equal to a predetermined number (for example, less than or equal to "4" points), advice corresponding to the advice code stored in the selected advice is read from the advice table 126 . Furthermore, when the score is less than a predetermined number (for example, when the score is "2" or less), the advice code of the emphasized advice is highlighted (for example, changed color, bold, blinked, or underlined). or change the font size).

The input unit 150 is a functional unit for the measurer to give instructions and operations to the sleep state evaluation device 1 (or the sleep state determination device 2). For example, it is composed of operation buttons, a touch panel, and the like.

The display unit 160 is a functional unit for displaying a sleep state and displaying operations of the sleep state determination device 2 and the sleep state evaluation device 1 . For example, it is configured by a display device such as a liquid crystal display.

In addition to the display unit 160, for example, a printing function may be provided. For example, the sleep state evaluation result may be printed on paper by the printing function together with the display unit 160, or may be printed instead of being displayed on the display unit 160. FIG.

[3. Process flow]
Next, the flow of processing of the sleep state evaluation device 1 according to this embodiment will be described.

[3.1 Main processing]
First, main processing executed in the sleep state evaluation device 1 will be described with reference to FIG. 9 . First, the control unit 100 executes sleep condition determination processing (step S100).

Here, the sleep state determination process is a process of generating the sleep state table 124 based on the sleep state history information 122 . For example, in order to determine the sleep time at night, the total sleep time from the preset bedtime to the wake-up time is determined as the sleep time.

Here, the bedtime and wake-up time may be set in advance, or may be determined automatically based on the sleep state history information 122 .

Subsequently, it is determined whether or not to create a sleep state evaluation report by the sleep state evaluation device 1 (step S102). Here, if the evaluation report is not to be created, another process is executed (step S102; No).

For example, if the process of changing the wake-up/bedtime time is selected (step S120; Yes), the date to be changed is selected (step S122), and the wake-up/bedtime of the selected date is changed ( step S124).

Next, when it is selected to create an evaluation report (step S102; Yes), sleep state evaluation processing is executed (step S104). The sleep state evaluation process is evaluated based on sleep states stored in the past (for example, sleep states for two weeks in this embodiment).

Furthermore, life rhythm evaluation processing is executed (step S106). When the life rhythm evaluation process is executed, the objective life rhythm is evaluated.

Then, evaluation report output processing is executed based on the content evaluated by the sleep state evaluation processing and the life rhythm evaluation processing (step S108). This enables the measurer to objectively evaluate the sleep state of the person being measured. Each process will be described in detail below.

[3.2 Sleep state evaluation process]
First, the sleep state evaluation process will be described with reference to FIG. 10 . The sleep state evaluation process is a process of mainly evaluating sleep at night, and is realized by reading and executing a sleep state evaluation program stored in the storage unit 120 by the control unit 100. . As a result, an evaluation score for each evaluation item is calculated for each process.

First, a night sleep time evaluation process is executed (step S200). In the nighttime sleep time evaluation process, the sleep time evaluation score is calculated based on the sleep time stored in the sleep situation table 124 .

Here, since the method of calculating the evaluation points for each evaluation item is the same, the nighttime sleep time evaluation processing will be described as an example with reference to FIG. 11 .

First, an average value of sleep hours for a predetermined period (for example, two weeks in the case of the present embodiment) is calculated (step S300). Subsequently, the nighttime sleep evaluation score is calculated based on the calculated average value (step S302).

Here, the sleep evaluation score is 10 points in this embodiment,
6.5 hours or more and less than 8 hours: 10 points 6 hours or more and less than 6.5 hours or 8 hours or more and less than 8.5 hours: 8 points 5.5 hours or more and less than 6 hours or 8.5 hours or more 9 Less than hours 6 points 5 hours or more and less than 5.5 hours or 9 hours or more and less than 10 hours 4 points 4.5 hours or more and less than 5 hours or 10 hours or more and less than 11 hours 2 points 4.5 Less than hours or 11 hours or more: 0 points are applied and calculated.

Thus, when calculating each evaluation score, the average value of each value is used. Also, the method for calculating the evaluation points described above is merely an example, and the method is not limited to the above method. That is, any method may be used as long as it assigns an evaluation score to a predetermined evaluation value.

Next, falling asleep evaluation processing is executed (step S202). In the falling asleep evaluation process, the falling asleep evaluation score is calculated based on the time until falling asleep stored in the sleep situation table 124 . For example, 10 points for less than 8 minutes, 8 points for less than 10 minutes, 0 points for 60 minutes or more.

Subsequently, sleep efficiency evaluation processing is executed (step S204). In the sleep efficiency evaluation process, an evaluation score is calculated based on the sleep efficiency stored in the sleep situation table 124. FIG. For example, 10 points for 95% or more, 9 points for 92.5% or more, 1 point for 72.5% or more, and 0 points for less than 72.5%.

Subsequently, an awakening time evaluation process is executed (step S206). In the awakening time evaluation process, an evaluation score is calculated based on the time when the user woke up stored in the sleep situation table 124, that is, the awakening time. For example, 10 points for less than 5 minutes, 9 points for less than 10 minutes, 1 point for less than 70 minutes, and 0 points for 70 minutes or more.

Next, a bed leaving count evaluation process is executed (step S208). In the bed leaving count evaluation process, an evaluation score is calculated based on the bed leaving count stored in the sleep situation table 124 . For example, 10 points for 0 times, 9 points for less than 0.15 times, . . . , 1 point for less than 2.5 times, and 0 points for 2.5 times or more.

Note that the evaluation of the number of times of getting out of bed may be performed by obtaining the time of getting out of bed instead of the number of times of getting out of bed. In this case, the time to get out of bed is stored again in the sleep state table 124 or the time to get out of bed is calculated from the sleep state history information 122 . Then, the evaluation score is calculated based on the bed leaving time.

In this way, each evaluation score is calculated by executing the sleep situation evaluation process.

[3.3 Life Rhythm Evaluation Processing]
Next, the life rhythm evaluation process will be described with reference to FIG. 12 . The life rhythm evaluation process is a process for objectively evaluating the life rhythm of the subject.

As an overview, each parameter value is calculated based on the sleep state history information 122 and the sleep state table 124 . This life rhythm is evaluated on a 50-point scale, and evaluation scores are calculated for four factors: "how to spend the day", "how to spend before going to bed", "sleep habit", and "sleep regularity". In the following, the first factor will be described in detail first, and the second to fourth factors will be described to the extent that the content of the invention can be understood, since the processing for calculating each evaluation score and the processing for determining advice are the same.

[3.3.1 Factor 1 “How to spend the day”]
First, daytime sleep time evaluation processing (step S400) and daytime time in bed evaluation processing (step S402) are executed in order to evaluate "how to spend the daytime".

Specifically, first, the daytime sleep time evaluation process calculates the daytime sleep time (daytime sleep time−nighttime sleep time). An evaluation score corresponding to the calculated daytime sleep time is determined based on the evaluation table 128 out of 5 points.

For example, if the daytime sleep time is 50 minutes, the daytime sleep time evaluation score is "3", which is "less than 60 minutes".

Similarly, in the daytime-in-bed time evaluation process, the daytime-in-bed time (day-in-bed time−night-time-in-bed time) is calculated, and an evaluation score corresponding to the calculated daytime-in-bed time is calculated. is determined on a scale of 5 based on the evaluation table 128 . For example, if the time in bed during the daytime is 150 minutes, the score of "1" for "less than 180 minutes" is the evaluation score for time in bed during the daytime. In the case of 180 minutes or more, the evaluation score is 0 points.

Next, the score of the first factor (out of 10 points) and advice are determined (step S404). In the above case, the score for the first factor is 3+1=4 points. As for the advice, based on FIG. 8, 5, 6, 7, 13 and 19 are selected as selected advice. In addition, since the daytime in-bed time evaluation score is 1 point, the advice 13 is selected as the advice to be highlighted.

[3.3.2 Factor 2 “How to spend time before going to bed”]
Subsequently, in order to evaluate how to spend time before going to bed, sleep evaluation processing before going to bed (step S406) and in-bed evaluation processing before going to bed (step S408) are executed.

Specifically, in the pre-bedtime sleep evaluation process, an evaluation score is calculated based on dozes before bedtime (average sleep time from (every day (time of falling asleep - sleep time)) to bedtime).

In addition, in the pre-sleep in-bed evaluation process, an evaluation score is calculated based on the time in bed before going to bed (the average of the time in bed from ((time of falling asleep - sleeping time) of each day) to the time of going to bed). .

Then, from the calculated evaluation scores, the score of the second factor is calculated out of 10, and the advice is determined (step S410).

[3.3.3 Factor 3 “Sleeping Habits”]
Next, in order to evaluate sleeping habits, a bedtime evaluation process (step S412), a bedtime evaluation process (step S414), a wakeup time evaluation process (step S416), and a bedtime evaluation process (step S418) are performed. ) are executed respectively.

Specifically, in the bedtime evaluation process, an evaluation score is calculated out of four points based on the time spent in bed at night (average bedtime (time from bedtime to wakeup time)).

In the wake-up in-bed evaluation process, evaluation points are given out of 3 based on the time from waking up in the morning until leaving bed (average of the time from the end of the sleep segment immediately before waking up to the time of waking up). Calculated.

In the wake-up time evaluation process, an evaluation score is calculated out of 3 based on the wake-up time (average wake-up time).

In the bedtime evaluation process, an evaluation score is calculated out of 4 based on bedtime (average bedtime).

Then, the score of the third factor is calculated out of 14 points from each calculated evaluation score, and the advice is determined (step S420).

[3.3.4 Factor 4 “regularity of sleep”]
Subsequently, in order to evaluate sleep regularity, bedtime regularity evaluation processing (step S422) and wake-up time regularity evaluation processing (step S424) are executed.

Specifically, in the bedtime regularity evaluation process, an evaluation score is calculated out of 8 based on the regularity of bedtime (standard deviation of bedtime).

In the wake-up time regularity evaluation process, an evaluation score is calculated out of 8 points based on the regularity of wake-up times (standard deviation of wake-up times).

Then, the score of the fourth factor is calculated out of 16 points from each calculated evaluation score, and the advice is determined (step S426).

[3.4 Evaluation Report Output Processing]
Next, evaluation report output processing will be described with reference to FIG. 13 . Here, the evaluation report may be output so as to be displayed on a display screen such as a liquid crystal display device, or may be printed out on recording paper from a printing device such as a printer. Also, it may be output to another connected system (for example, an electronic chart system).

First, a sleep diary is generated from the sleep state history information 122 (step S500). Here, the sleep diary is to display the state of the sleep state history information 122 on a graph. Note that the sleep diary may not be generated (output).

Subsequently, a sleep state evaluation score is output based on each evaluation score evaluated in the sleep state evaluation process (step S104 in FIG. 9) (step S502). Then, based on each evaluation score evaluated in the life rhythm evaluation process (step S106 in FIG. 9), the life rhythm evaluation score is output (step S504).

Furthermore, in the life rhythm evaluation process, each determined piece of advice is read from the advice table 126 and output as sleep advice (step S506).

In this way, an evaluation report is output by displaying information based on the evaluation points evaluated in the sleep state evaluation process and the life rhythm evaluation process, and sleep advice.

Here, it is possible to select whether or not to output the above-described items to be output. That is, it is possible to output only information based on each evaluation score of nighttime sleep and evaluation score of life rhythm, or to output only sleep advice.

In the sleep state evaluation process described above, when calculating the evaluation score for each evaluation item, it is calculated based on the average value of the sleep state for several days (for example, two weeks). can be calculated based only on the previous day.

[4. Example]
Next, an example of an evaluation report will be described with reference to FIG. 14 as an example when the above-described processing is executed. FIG. 14 is a diagram showing an example of an output evaluation report.

The evaluation report displays a sleep diary (R10 in FIG. 14), current sleep evaluation (R12 in FIG. 14), and sleep advice (R14 in FIG. 14). By checking the evaluation report, the measurer can easily grasp the sleep state of the person being measured.

As for the sleep evaluation in FIG. 14, each evaluation score is represented by a radar chart. Also good. Numerical values and scores for each item may also be displayed together with a radar chart or the like.

As described above, according to the present embodiment, it is possible to provide a sleep state evaluation apparatus that reduces the burden on the subject (input work and memory of life rhythm) and improves the objectivity of life rhythm evaluation.

For example, the time spent in bed is too long, the time to go to bed and wake up is irregular, sleeping in bed during the day and going to sleep, going to the bathroom many times at night, etc. The cause can be presumed.

In addition, even if the sleep index such as the time to fall asleep and the time to wake up in the middle of the night is the same, it can be estimated that the quality of sleep is better in people who go to bed and wake up at regular times and who stay away from bed during the day. .

[5. Modification]
Although the embodiments of the present invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments, and designs and the like within the scope of the scope of the claims can be applied without departing from the gist of the present invention. include.

In the above-described embodiment, each evaluation score is calculated without using the evaluation table 128 in the sleep state evaluation process, and each evaluation score is calculated using the evaluation table 128 in the life rhythm evaluation process, but it is not limited to this. None.

That is, in order to calculate each evaluation score, threshold values may be stored as in the evaluation table 128, or evaluation scores may be calculated by a program. Therefore, by storing the parameters, it is possible to use the evaluation table 128 also in the sleep state evaluation process. By using the evaluation table 128, for example, the measurer can change the value of the parameter to make an appropriate evaluation.

Also, the evaluation table 128 may be stored for each age or sex, for example. As a result, it becomes possible to store appropriate values such as wake-up time for each age, so that more appropriate evaluation can be performed.

In addition, in the above-described embodiment, the sleep state is determined by the sleep state determination device 2 and then transmitted, but the sleep state evaluation device 1 may be used. That is, the sleep state determination unit 250 of FIG. 3 may be stored in the sleep state evaluation device 1 and the sleep state may be determined by the sleep state evaluation device 1 based on the amount of activity output from the sleep state determination device 2 . Furthermore, by storing the activity amount calculation unit 240 in the sleep state evaluation device 1 , the sleep state determination device 2 may transmit only the information detected by the vibration detection unit 210 to the sleep state evaluation device 1 .

Further, the sleep state determination process S100, the sleep state evaluation process S104, the life rhythm evaluation process S106, and the like may be executed by a server connected to the sleep state evaluation apparatus 1. FIG. That is, the sleep state evaluation device 1 transmits the sleep state to the server. An evaluation report is output by executing the sleep state determination process S100, the sleep state evaluation process S104, the life rhythm evaluation process S106, and the like on the server side. As a result, even a terminal such as a mobile terminal that does not have high processing performance can appropriately output an evaluation report.

Further, in the above-described embodiment, the sleep state determination device 2 and the sleep state evaluation device 1 are explained as one-to-one, but a plurality of devices may be combined. For example, when used in nursing homes, hospitals, etc., it is common for there to be a plurality of subjects (for example, patients or people requiring care), and the sleep state evaluation device for a plurality of subjects may be managed. In addition, since there may be a plurality of measurers (for example, nurses and nursing staff), there may be a plurality of sleep evaluation devices.

1 sleep state evaluation device 100 control unit 110 communication unit 120 storage unit 122 sleep state history information 124 sleep state table 126 advice table 128 evaluation table 150 input unit 160 display unit 2 sleep state determination device 200 control unit 210 vibration detection unit 220 storage unit 230 communication unit 240 activity amount calculation unit 250 sleep state determination unit

Claims (6)

a calculation unit that calculates the amount of activity of the person to be measured from the detected vibration;
a determination unit that determines a sleep state indicating sleep or wakefulness of the person to be measured based on the amount of activity;
a control unit that stores the sleep state determined by the determination unit at predetermined time intervals;
a calculation unit that calculates daytime sleep time based on the sleep state;
Based on how to spend before going to bed, including sleeping time and time in bed from the first time of the night before the bedtime of the subject to the bedtime, and the sleeping time during the day, an evaluation unit that evaluates the quality of sleep at night of the subject and evaluates the life rhythm based on the sleep state;
and an output unit that outputs a report based on the quality of sleep and the evaluation of the life rhythm. 2. The controller according to claim 1, wherein when the sleep state determined by the determination unit is changing, the control unit stores the sleep state at shorter time intervals than when the sleep state is continuously the same. sleep state evaluation device. 3. The evaluation unit according to claim 1 or claim 2, wherein the evaluation unit further evaluates the sleep quality of the subject based on the subject's night sleep efficiency and/or the number of times the subject gets out of bed. Sleep state evaluation device. 3. The sleep state evaluation device according to claim 1, wherein the evaluation unit further evaluates the subject's sleep quality at night based on the subject's time spent in bed during the day. 3. The evaluation unit further evaluates the sleep quality of the subject based on the regularity of bedtime and/or the regularity of wake-up time of the subject. 3. The sleep state evaluation device according to . 3. The evaluation unit further evaluates the subject's sleep quality at night based on an average wake-up time and/or an average bedtime as the sleep habit of the subject. 3. The sleep state evaluation device according to .

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