JP7789405B2 - Sleep check system, sleep check program, and sleep check method - Google Patents

Description

The present invention relates to a sleep check system, a sleep check program, and a sleep check method that receive operation inputs all at once.

To date, there have been many technologies available to prevent suffocation caused by prone sleeping and sudden infant death syndrome (SIDS) by detecting whether an infant is sleeping on their stomach or their breathing state and notifying the parent or guardian.

Patent Document 1 discloses a prior art infant sleeping on their stomach detection device that can prevent suffocation accidents by detecting and alerting an infant sleeping on their stomach. The device consists of a detection unit attached to the surface of the infant's clothing and a main unit. The detection unit is attached to the surface of the clothing, such as the abdomen, and detects when the infant is sleeping on their stomach and sends out an ON signal. When the main unit receives the ON signal, an alarm unit in the main unit emits light, sound, vibration, or a combination of these to alert the infant.

Patent Document 2 also discloses a system and method for body movement monitoring, temperature monitoring, data collection, and analysis, in which an acceleration sensor and a temperature sensor are used to measure an infant's characteristics, and the measured characteristic information is sent to a computer device, which then displays a warning about the measured characteristics. It also discloses a system and method for determining changes in the position of the motion sensor over time.

Japanese Patent Application Laid-Open No. 2005-312901 US Patent Application Publication No. 2015/0250419

Here, at daycare centers and other facilities where multiple infants and young children are enrolled, childcare workers are required to check the position of each child's body and breathing while they sleep at regular intervals (for example, every five minutes) when checking the afternoon naps of the children in their classes, and record the results of these checks for each child on a check sheet or similar. However, there is a need to reduce the burden on childcare workers of these checks and records.

The conventional technology disclosed in Patent Document 1 only detects when a child is sleeping face down and alerts them by voice or other means. While this alert notifies childcare workers that a child is sleeping face down, it does not allow them to check whether the child is sleeping normally. Furthermore, the conventional technology disclosed in Patent Document 2 also displays changes in sleep state over time, but the childcare workers are forced to use this display as a reference when checking the sleep state of each child and record the results of each individual check on a separate check sheet or similar, which is insufficient to meet the needs of the child.

In view of the above-mentioned problems, the present invention provides a sleep check system, sleep check program, and sleep check method that, when checking and recording the sleep status of children at predetermined intervals on a terminal device owned by a user such as a childcare worker, detects the sleep status of children, such as their body position, displays the detected sleep statuses all at once, accepts input of check results for the displayed sleep statuses all at once, and can change the display of the sleep status for which the checks have been accepted.

In order to solve the above problem, the invention described in claim 1 is a sleep check system for checking the sleep states of a plurality of subjects as a plurality of infants, comprising:
a detection unit that includes a main body that is detachable from the subject, acquires information on the angle of the main body from a predetermined reference position at every first predetermined period, and detects the body orientation of the subject that depends on the information on the angle, and detects the body temperature of the subject at every fourth predetermined period;
a collection unit that collects posture data indicating the body orientation of each of the subjects detected by the detection unit, and generates posture information that is information indicating the body orientation including a supine state and a prone state , and also collects temperature data indicating the body temperature of each of the subjects detected by the detection unit, and generates information indicating the body temperature; a display unit that detects the body orientation of each of the subjects based on the posture information acquired for each of the first predetermined periods, and when it is detected that the body orientation is in a supine state, displays text information indicating that the body orientation is in a supine state all at once using a list for the number of the subjects, and detects the body temperature information acquired for each of the fourth predetermined periods, and displays the detected body temperatures of each of the subjects for the number of the subjects;
The device is characterized by having an alert information generation and output unit that, when it is detected based on the posture information that the subject is lying face down, generates alert information indicating that the subject's life is in danger as text information and audio information , outputs the generated text information as a pop-up display generated for each subject , and outputs the generated audio information as audio.

The invention described in claim 2 is characterized in that, in addition to the configuration described in claim 1, the posture display unit selects whether or not to display the subject's body orientation for each age of the subject, or for each age and month of the subject.

The invention described in claim 3, in addition to the configuration described in claim 1 or 2, further includes a memory unit that stores the collected temperature data for a second specified period, and the memory unit stores the collected posture data for the second specified period.The invention further includes a calculation unit that calculates the average number of times the subject turns over in their sleep during a third specified period based on the stored posture data, and a determination unit that compares the number of times the subject turns over in their sleep during the third specified period indicated by the generated posture information with the calculated average number of times the subject turns over in their sleep, and determines whether the subject turns over a lot during the third specified period, and the display unit changes the display of the body position of the subject who is determined to turn over a lot.

The invention described in claim 4 is characterized in that, in addition to the configuration described in claim 3, the calculation unit calculates the average body temperature of the subject over a fifth specified period based on the stored temperature data, the determination unit compares the calculated average body temperature of the subject with the generated information indicating the body temperature to determine whether the body temperature is normal or not over the fourth specified period , and the display unit changes the display of the body orientation of the subject whose body temperature is determined not to be normal.

The invention of claim 5 is a sleep check method in a sleep check system that checks the sleep states of multiple subjects, comprising: a detection step in which a main body unit detachable from the subjects is provided, and the detection is performed by a detection unit that acquires information on the angle of the main body unit from a predetermined reference position every first predetermined period to detect the body orientation of the subjects depending on the angle information, and detects the body temperature of the subjects every fourth predetermined period; a collection step in which a collection unit collects posture data indicating the body orientation of each of the subjects detected in the detection step and generates posture information that is information indicating the body orientation including a supine state and a prone state, and collects temperature data indicating the body temperature of each of the subjects detected by the detection unit and generates information indicating the body temperature; and a collection step in which a collection unit collects posture data indicating the body orientation of each of the subjects detected in the detection step and generates posture information that is information indicating the body orientation including a supine state and a prone state, and collects temperature data indicating the body temperature of each of the subjects detected by the detection unit and generates information indicating the body temperature. a display procedure in which, if the body orientation of each subject is detected and it is detected that the body orientation is facing up , text information indicating that the body orientation is facing up is displayed all at once using a list for the number of subjects, and the body temperature information acquired for each of the fourth predetermined periods acquired in the collection procedure is detected and the detected body temperatures of each of the subjects are displayed on a display unit for the number of subjects; and an alert information generation and output procedure in which, if it is detected that the subject is facing down based on the posture information, alert information indicating that the life of the subject is in danger is generated as text information and audio information , and the generated alert information of the text information is output as a pop-up display generated for each of the subjects, and the generated alert information of the audio information is output as audio .

The invention of claim 6 is a sleep check sensor used in a sleep check system that checks the sleep states of a plurality of subjects, and that acquires posture information as information for displaying the body orientation of the subjects on a display unit, the sleep check sensor comprising a main body unit that is detachable from the subjects, and a detection unit that acquires information on the angle of the main body unit from a predetermined reference position at each first predetermined period to detect the body orientation of the subjects that depends on the angle information, and detects the body temperature of the subjects at each fourth predetermined period, the detection unit collects posture data indicating the body orientation and generates posture information that indicates the body orientation including a supine position and a prone position, and information indicating the body temperature, by a collection unit that collects the posture data for each of the detected subjects to generate the posture information, and collects temperature data indicating the body temperature for each of the subjects to generate the information indicating the body temperature, and the body temperature information acquired for each of the fourth predetermined period is detected, and the detected body temperatures of each of the subjects are displayed on the display unit for the number of subjects; and if it is detected that the subject is lying face down based on the posture information, alert information indicating that the life of the subject is in danger is generated as text information and audio information, and the generated alert information as text information is output as a pop-up display generated for each of the subjects, and the generated alert information as audio information is output; and the alert information generation and output unit is configured to generate the alert information and output the generated alert information.

The invention described in claim 7 is a sleep check program that causes a computer to function as a sleep check system described in any one of claims 1 to 4.

In addition, any combination of the above components, and any transformation of the present invention into a method, device, system, computer program, data structure, recording medium, etc., are also valid aspects of the present invention.

This invention allows a terminal device held by a user, such as a childcare worker, to display the detected sleep states of children, including their body orientation, at predetermined intervals, accept input of check results for the displayed sleep states, and change the display of the sleep states for which the checks have been accepted. This eliminates the need to input checks for the sleep states of multiple children one by one, and provides a sleep check system, sleep check program, and sleep check method that allows users to confirm the extent to which the check has been completed by changing the display of the entered sleep states.

1 is a diagram illustrating an example of a system configuration of a sleep check system according to an embodiment of the present invention. 1 is a diagram illustrating an example of the functional configuration of a sleep check system according to an embodiment of the present invention. 1 is a schematic diagram showing an overview of a sleep check system according to an embodiment of the present invention; FIG. 10 is a diagram showing an example of a screen displayed on a display unit of a terminal device according to an embodiment of the present invention. FIG. 1 is a diagram illustrating an example of the operation of a sleep check system according to an embodiment of the present invention. FIG. 1 is a diagram illustrating an example of the operation of a sleep check system according to an embodiment of the present invention. 1 is a graph showing an example of sleep state determination by a sleep check system according to an embodiment of the present invention. FIG.

<One embodiment>
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
(System configuration)
FIG. 1 is a system diagram showing an example of the system configuration of a sleep check system according to one embodiment of the present invention.

As shown in FIG. 1, the sleep check system 100 includes an information processing device 200, a terminal device 300, a sensor device 400, and a network 500 (such as an IP network).

The information processing device 200 is connected to the terminal device 300 and the sensor device 400 via the network 500. For simplicity of explanation, Figure 1 shows three information processing devices 200, two terminal devices 300, and one sensor device 400, but it goes without saying that there may be more or fewer. In particular, it is preferable to have multiple sensor devices 400, as sleep checks are performed on multiple infants and young children in a facility such as a nursery school.

The information processing device 200 may be any electronic device that has the processing power to perform calculations and processing such as data acquisition, generation, and updating, and may be, for example, a personal computer, server, mainframe, or other electronic device.

Specifically, the information processing device 200 may be a processing device in which the entire device is controlled by a processor. The processor is configured by connecting, via a bus, storage devices such as RAM, ROM, and a hard disk drive (storage unit 230), an input/output interface, a communication interface (NIC), etc. The storage device has the function of storing various processing data and programs required for various processes in the control unit 210. Input/output devices such as a display, keyboard, mouse, and external storage medium are connected to the input/output interface. The communication interface is connected to a network 500.

In addition, the information processing device 200 may use SaaS, PaaS, or IaaS via a cloud server as appropriate, without providing software, hardware, an OS, etc. dedicated to the sleep check system 100.

The terminal device 300 may be any electronic device such as a mobile terminal owned by a user, such as a childcare worker, who uses the sleep check system, and may be, for example, a mobile terminal, tablet terminal, smartphone, wearable terminal, personal computer, or other terminal device.

Network 500 is, for example, an IP network. As long as network 500 is an IP network, it may be wireless, wired, or a combination of wireless and wired. For example, in the case of wireless communication, terminal device 300 or sensor device 400 may access a wireless LAN access point (not shown) and communicate with information processing device 200 via a LAN or WAN. Furthermore, network 500 is not limited to these examples and may be, for example, a public switched telephone network, Bluetooth (registered trademark), an optical fiber line, an ADSL line, a satellite communication network, etc.

Here, an overview of the sleep check system 100 according to one embodiment of the present invention will be described using Figure 3. Figure 3 is a schematic diagram showing an overview of the sleep check system 100 according to one embodiment of the present invention.

As shown in FIG. 3, the sleep check system 100, as an example, uses a sensor device 400 attached to a sleep check subject (hereinafter simply referred to as "subject"), such as an infant, to detect the body position, body temperature, breathing, and other aspects of multiple infants while they sleep. 1. The sensor device 400 then transmits the detected data (sensing data) to a terminal device 300. The terminal device 300 then receives the sensing data, 2. collects sleep state information (posture information, etc.) indicating the sleep state of each infant being checked, 3. calculates the average number of turns over in a given period of time for each infant or for each group of multiple infants based on the collected sleep state information, 4. determines whether each infant or group is turning over frequently based on the calculated average number of turns, and 5. generates display information, including the results of the determination, to display the sleep state of each infant or group, such as the body position, body temperature, and whether they are turning over frequently.

As shown in FIG. 3, 6. When the generated display information is transmitted to the display unit 341 of the terminal device 300, 7. for each infant, (1) whether or not the infant is sleeping, (2) an indication of the infant's body position (for example, a text indication such as "on their back" or an image of an up arrow), and (3) the infant's body temperature are displayed on the screen in a list format at predetermined intervals (for example, every five minutes).

Here, "sleep state" refers to the infant's body orientation, body temperature, whether or not they are breathing, and other aspects of their sleep at a given point in time. Furthermore, "sleep state information" here refers to information that indicates these aspects, such as posture information indicating the infant's body orientation, body temperature information indicating the infant's body temperature, and respiratory information indicating whether or not the infant is breathing and their respiratory rate.

The sleep check system 100 can accept batch check inputs for target infants at predetermined intervals on the screen display. For example, as shown in FIG. 3, a check button for inputting that all target infants have been checked is provided for the display showing the body orientation of each infant at 12:10 displayed on the display unit 341. When the check button is pressed and executed, the display showing the body orientation of all target infants in the 12:10 column, like the 12:00 and 12:05 columns, changes are made to the display so that it is clear at a glance that the check has been completed, such as (1) the text display of the check button changes from "Check" to "Done," (2) the frame of the arrow or face symbol indicating waking up changes from a solid line to a dotted line, (3) the name of the childcare worker who checked, "Teacher Yuka," is displayed in text at the bottom of the column for the target infant, and (4) the column for the time of the checked target is grayed out.

In the past, when a user such as a childcare worker had to check the sleep status of each child at a specified time interval and record the check results by hand, if the specified time was five minutes, it would take five minutes just to check the sleep status of all the children in a class in a given session and record the check results by hand, which meant that the next check session would begin before or immediately after completion, making the sleep check work a heavy burden. To address this problem, the sleep check system 100's configuration allows the user to input the check results all at once based on the sleep status detected by the sensor device 400, without having to record them by hand. The display changes where the input is received, making it clear at a glance whether the check has been completed, thereby reducing the burden on childcare workers when performing sleep checks such as afternoon nap checks.
(Functional configuration)
2 is a diagram showing an example of the functional configuration of the sleep check system 100 according to one embodiment of the present invention. As shown in FIG. 2, the sleep check system 100 includes an information processing device 200, a terminal device 300, and a sensor device 400.

Specifically, the sleep check system 100 is a sleep check system that checks the sleep states of multiple subjects and includes a detection unit 440 that is attached to the subjects and detects the subject's body orientation at first predetermined intervals; a collection unit 311 that collects posture data indicating the body orientation of each subject detected by the detection unit 440 and generates posture information; a display unit 341 that displays the body orientation of each subject collectively based on the posture information; and an operation input unit 351 that accepts confirmation input for some or all subjects collectively in relation to the displayed body orientations of each subject; and when the display unit 341 accepts confirmation input from the operation input unit 351, it changes the display of the confirmed body orientation of the subject.

Here, the "first predetermined period" refers to the interval at which the posture detection unit 441 detects the subject's body orientation. Specifically, if the body orientation is detected every five minutes, the first predetermined period would be "five minutes." When setting the first predetermined period, you can set how often you want to check the subject's body orientation (whether they are sleeping on their back or stomach) when checking their sleep state, depending on measures to prevent suffocation and SIDS.

By configuring the sleep check system 100 in this way, it can accept input of all the checks made on the sleep status of infants and young children at once, and by changing the display of the sleep status that received this input, it is possible to input sleep checks for multiple children at once, and it is possible to provide a sleep check system that allows you to see at a glance whether the checks have been made.

The "posture data" referred to here is data indicating the orientation of the target infant's body detected by the detection unit 440. For example, when the posture detection unit 441 detects the orientation of the body using an acceleration sensor or a gyro sensor, it refers to data indicating the degree of inclination (angle) from the initial value at the start of detection. Also, the "posture information" referred to here is information indicating the orientation of the target infant's body (such as lying on its back or stomach) obtained from the posture data.
(Information processing device 200)
As shown in FIG. 2, the information processing device 200 includes a control unit 210, a communication unit 220, and a storage unit 230.

The control unit 210 is a processor that includes a collection unit 211, a calculation unit 212, and a determination unit 213, and has the function of controlling each functional unit of the information processing device 200. The control unit 210 may also include a generation unit 214.

For example, the control unit 210 may refer to, update, or delete various information such as sleep state information stored in the storage unit 230 based on a processing request from the terminal device 300, the sensor device 400, or each functional unit of the information processing device 200, and generate output information for outputting the processing results on the terminal device 300. In this case, the generated output information is transmitted to the terminal device 300 via the communication unit 220 and the network 500.

Here, "output information" refers to display information and audio information output by the output unit 340 of the terminal device 300. It is not limited to this information, and any information may be used as long as it can output the sleeping status of infants and young children to users such as nursery teachers. For example, this information may include vibration information that utilizes the vibration function of the terminal device 300, and may be output by vibration of the terminal device 300.

The collection unit 211 has a function of collecting data detected and output by the sensor device 400. The collection unit 211, for example, collects posture data indicating the body orientation of each subject detected by the detection unit 440 of the sensor device 400, and generates posture information. In the collection method of the collection unit 211, sensing data such as posture data received from the sensor device 400 may be temporarily stored in the memory unit 230 for a predetermined period and collected in response to an output request from the terminal device 300, or the sensing data may be collected in pseudo-real time at the timing received from the sensor device 400. The collection unit 211 may store various collected data and various generated information (posture information, body temperature information, etc.) in the memory unit 230. The collection unit 211 may calculate the number of times the subject turned over in sleep during a third predetermined period based on the stored posture information, and store the calculation result together with the posture information. When calculating the number of times the patient has turned over in sleep, the collection unit 211 may, for example, count up (increment) when the body position changes to lying on its back, side, or stomach, or may set a predetermined angle standard or angle range and count up when the standard or range is exceeded, thereby calculating the number of times.

As another example, the collection unit 211 may collect temperature data indicating the body temperature of each subject detected by the detection unit 440 of the sensor device 400, and generate body temperature information.

The term "temperature data" as used here refers to data indicating the body temperature of the target infant detected by the detection unit 440. For example, if the temperature detection unit 442 detects the temperature using a thermometer or thermographer, it refers to the temperature measured from the part of the target infant's body that the temperature detection unit 442 comes into contact with, or from far-infrared rays emitted from inside the body. Also, the term "body temperature information" as used here refers to information indicating the body temperature or normal temperature of the target infant at a certain point in time, calculated from the temperature data.

The calculation unit 212 has a function of calculating the average value for a certain period based on the data stored in the storage unit 230. Specifically, the calculation unit 212 calculates the average number of times each subject turns over in sleep during a third predetermined period based on the posture data stored in the storage unit 230. The calculation unit 212 may store the calculated average number of times in the storage unit 230.

Here, the "third specified period" refers to a period during which the number of times each subject turns over while asleep is checked, and whether the subject is asleep or awake is checked. For example, if a nursery school teacher is checking the afternoon naps of infants enrolled in a nursery school, the nap time (e.g., 1 hour, 2 hours) may be set as the third specified period. Furthermore, the third specified period may be set as a period divided into the average REM and non-REM sleep durations of infants (for example, a set of REM and non-REM sleep may be set for each age group: late fetal to newborn period: 40-50 minutes, 3-4 years old: 40-60 minutes, adult: 90-100 minutes).

The calculation unit 212 may also calculate the average body temperature for each subject over a fifth predetermined period based on the temperature data stored in the memory unit 230.

Here, the "fifth specified period" refers to the period during which the body temperature of each subject is checked. For example, when a childcare worker checks the temperature of infants enrolled in a nursery school, the fifth specified period may be set to the time from arrival to departure or nap time (e.g., one hour or two hours). Furthermore, the fifth specified period may be set to a period divided into the average REM and non-REM sleep periods of infants.

The determination unit 213 has the function of making a determination based on the information stored in the memory unit 230. Specifically, for example, the determination unit 213 compares the number of times each subject turned over indicated by the posture information stored in the memory unit 230 with the average number of times each subject turned over calculated by the calculation unit 212 to determine whether there was a large number of times each subject turned over during a third predetermined period.

Here, the "second specified period" refers to the period during which various data on the subject is accumulated in the memory unit 230. For example, in the case of sleep checks on infants enrolled in a nursery school, etc., this may be the period of enrollment for each child from the beginning of enrollment to the present time. As another example, this may be a period of six months, one year, five years, or ten years depending on the operating environment of the sleep check system, such as the storage capacity of the memory unit 230.

The determination unit 213 may determine whether the subject is asleep or awake based on changes in body orientation (body movement) over a third predetermined period. Here, an example of a method for the determination unit 213 to determine whether the subject is asleep or awake based on changes in body orientation over a third predetermined period will be described using Figure 7. Figure 7 is a graph in which the vertical axis represents the amount of change in body orientation (angle [°] from a reference position) and the horizontal axis represents time (in seconds). This graph plots data on the amount of change in angle from a reference position over time for each sensor device 400 (S1, S2, ... S10) attached to the subject.

Specifically, the determination unit 213 may determine the change over time in the body tilt detected by the detection unit 440 of the sensor device 400 using the following methods (1) to (3), based on a group of angle data from a set reference position contained in the posture data stored for a third predetermined period for each sensor device 400, which is plotted in the graph shown in Figure 7.

(1) As an example, the determination unit 213 may extract features of the body orientation of the posture data stored in the memory unit 230 in each of the sleeping and awake states to construct a state determination model in advance, and use the constructed state determination model to determine whether the subject is sleeping or awake based on the features of the body orientation over a third predetermined period. Specifically, the determination unit 213 extracts features using, for example, a group of angle data included in the posture data as explanatory variables and the sleeping and awake states as objective variables, and combines the features to generate training data. The determination unit 213 constructs a state determination model by using the training data for machine learning (for example, a learning technique such as SVM (Support Vector Machine)) to train the model. The determination unit 213 stores the constructed state determination model in the memory unit 230. The determination unit 213 may perform pattern recognition using the stored state determination model based on the body orientation feature amounts of the posture data collected over a third predetermined period, and determine (classify) whether the subject is in a sleeping or awake state. With this configuration, simply detecting the subject's body orientation makes it possible to accurately predict whether the subject is in a sleeping or awake state, eliminating the need for users such as childcare workers to constantly check whether the subject's infant is sleeping or awake, and reducing the burden of sleep checks.

(2) As another example, the determination unit 213 may count the number of times the graph shown in FIG. 7 passes through a reference angle or angle region during a target period, and determine that the subject is in an awake state if the counted number of passes is equal to or greater than a predetermined number. Alternatively, the determination unit 213 may determine that the subject is in a sleep state if the counted number of passes is less than the predetermined number.

(3) In addition to the above (1) and (2), the determination unit 213 may use a determination method in which, for the graph shown in Figure 7, interpolation, regression analysis, etc. are used to find a curve that minimizes the distance from the angle data group by curve fitting, and the determined curve is used to determine (classify) whether the subject is in a sleeping state or a waking state.

The determination unit 213 may compare the average body temperature calculated by the calculation unit 212 with the body temperature indicated by the generated body temperature information for each subject to determine whether the body temperature is normal during the third specified period.

The determination unit 213 determines whether the subject is asleep or awake based on changes in the subject's body position during the sixth predetermined period, and if it determines that the subject has transitioned from an awake state to a sleeping state, it may consider that the subject has started to fall asleep and issue a start processing request to start posture detection and temperature detection by the detection unit 440 of the sensor device 400 under preset conditions.

For example, when the subject is in a state before falling asleep (awake state), the determination unit 213 may partially suspend posture detection and temperature detection by the detection unit 440 of the sensor device 400 (such as posture detection at intervals that are shorter than the first predetermined period, temperature detection stopped, or sleep state), and only when the determination unit 213 determines that the subject has fallen asleep and transitioned to a sleep state may it transmit a start processing request to the detection unit 440 of the sensor device 400 to start a full-scale sleep check, such as detecting the body orientation for each first predetermined period, and the detection unit 440 of the sensor device 400 may only begin detection to start a full-scale sleep check once the start processing request has been transmitted. This configuration makes it possible to eliminate unnecessary detection during the wakefulness state and efficiently detect the body orientation of the subject in terms of processing performance, communication capacity, and memory capacity.

The determination unit 213 may group the subjects and determine whether at least one of the number of subjects determined to toss and turn frequently or the number of subjects determined to have an abnormal body temperature within the group is greater than a predetermined number. Specifically, for example, in the case of an afternoon nap check at a nursery school, the determination unit 213 may group the children by their class and determine whether either the number of children who toss and turn frequently or the number of children whose body temperature is higher than normal is greater than a predetermined number within the group. Here, the "predetermined number" may be half or two-thirds of the number of subjects to be grouped, and may be set depending on the check system for the sleep check, etc.

In addition to the above, the determination unit 213 may also determine whether the subject's sleeping state is different from usual. For example, it may (1) determine whether the rate of increase in body temperature is abnormally high compared to a predetermined rate of increase (indicating a high possibility of overheating), (2) determine whether the number of times the subject wakes up and falls asleep is higher than a predetermined number (indicating a high possibility of difficulty falling asleep), or (3) use machine learning to extract features of the body orientation when sleeping on one's stomach, and predict or determine the state of prone sleeping.

The generation unit 214 generates output information (display information, audio information) to be output on the terminal device 300 based on various information stored in the memory unit 230. Specifically, the generation unit 214 may generate display information to be displayed on the display unit 341 as shown in Figures 3 and 4 based on, for example, posture information, body temperature information, personal information, etc. for each target infant. The generation unit 214 transmits the generated output information to the output unit 340 of the terminal device 300 via the communication unit 220 and the network 500.

The communication unit 220 has the function of communicating with the terminal device 300, the sensor device 400, or other information processing devices 200 via the network 500 under the control of the control unit 210. This communication may be wired or wireless, and any communication protocol may be used as long as mutual communication is possible. Specifically, the communication unit 220 may send output information to the terminal device 300 or receive sensing data from the sensor device 400.

The memory unit 230 has the function of storing various programs, data, parameters, etc. required for the information processing device 200 to perform calculations and processing under the control of the control unit 210. Specifically, the memory unit 230 stores, for example, sensing data (posture data, temperature data), posture information, body temperature information, personal information, etc. Specifically, the memory unit 230 is composed of, for example, a main memory device consisting of ROM and RAM, an auxiliary memory device consisting of non-volatile memory, etc., and various recording media such as an HDD (Hard Disc Drive), an SSD (Solid State Drive), and flash memory.

Here, "personal information" refers to information that identifies or relates to the individual being checked, specifically information consisting of name, age and age in months, length of stay at a facility such as a nursery school, address, family composition, and, if the person is a kindergartener, the names of both parents. Personal information may also include each person's normal body temperature (average body temperature over a fifth specified period) and average number of times they turn over in their sleep (average number of times they turn over in their sleep over a second specified period).

Specifically, the storage unit 230 may store, for a second predetermined period, the posture data collected by the collection unit 211 for each subject. Furthermore, the storage unit 230 may store, for a second predetermined period, the temperature data collected by the collection unit 211 for each subject.
(Terminal device 300)
As shown in FIG. 2, the terminal device 300 includes a control unit 310, a communication unit 320, a storage unit 330, an output unit 340, an input unit 350, and an image capturing unit 360.

The control unit 310 may include a collection unit 311, a calculation unit 312, a determination unit 313, and a generation unit 314, and is a processor that has the function of controlling each functional unit of the terminal device 300. Specifically, the control unit 310, for example, stores output information transmitted from the information processing device 200 in the storage unit 330, and outputs the output information to the output unit 340.

The collection unit 311 has the same functions as the collection unit 211 of the information processing device 200. In other words, the collection process of the sensing data detected by the sensor device 400 may be performed by any of the information processing device 200, the terminal device 300, or the sensor device 400, and may be determined appropriately depending on the processing environment, such as the communication environment and memory capacity, and the business content of the childcare service that uses the sleep check system 100.

The calculation unit 312 has the same functions as the calculation unit 212 of the information processing device 200. In other words, the calculation processing of various data collected by the collection unit of each device may be performed in any of the information processing device 200, terminal device 300, or sensor device 400, and may be determined appropriately depending on the processing environment, such as the communication environment and memory capacity, and the business content of the childcare service that uses the sleep check system 100.

The determination unit 313 has the same functions as the determination unit 213 of the information processing device 200. That is, in any of the information processing device 200, terminal device 300, and sensor device 400, the determination process may be performed based on the various data collected and information generated by the collection unit of each device, and the results calculated by the calculation unit of each device, and may be determined appropriately depending on the processing environment, such as the communication environment and memory capacity, and the business content of the childcare service that uses the sleep check system 100.

The generation unit 314 has the same functions as the generation unit 214 of the information processing device 200. In other words, the information processing device 200, terminal device 300, or sensor device 400 may generate output information based on information stored in the memory of each device, and may be determined appropriately depending on the processing environment, such as the communication environment and memory capacity, and the business content of the childcare service that uses the sleep check system 100.

The communication unit 320 has the function of communicating with the information processing device 200, the sensor device 400, or other terminal devices 300 via the network 500 under the control of the control unit 310. This communication may be wired or wireless, and any communication protocol may be used as long as mutual communication is possible. Specifically, the communication unit 320 may, for example, receive output information from the information processing device 200, receive sensing data from the sensor device 400, or send input information to the information processing device 200.

The memory unit 330 has the function of storing various programs, data, parameters, etc. required for the operation of the terminal device 300 under the control of the control unit 310. Specifically, the memory unit 330 stores, for example, sensing data (posture data, temperature data), posture information, body temperature information, personal information, etc. Specifically, the memory unit 330 is composed of, for example, a main memory device consisting of ROM and RAM, an auxiliary memory device consisting of non-volatile memory, etc., and various recording media such as HDD, SSD, flash memory, etc.

The output unit 340 includes a display unit 341 and an audio output unit 342, and has the function of outputting various information to the terminal device 300 under the control of the control unit 310. For example, the output unit 340 outputs the body orientation of each subject all at once based on the posture information stored in the memory unit 330.

The display unit 341 has the function of outputting various information such as posture information under the control of the control unit 310. Specifically, for example, an LCD (Liquid Crystal Display), LED (Light Emitting Diode) display, or OLED (Organic Light Emitting Diode) display may be used. The display unit 341 has the function of displaying display information transmitted from the information processing device 200 via the network 500 under the control of the control unit 310.

The display screen of the display unit 341 (including that displayed on the viewfinder screen of the camera of the imaging unit 360) may be generated in a general data format that can be displayed on the screen of the terminal device 300, such as a markup language such as HTML (Hyper Text Markup Language), bitmap data, or compressed image data.

Under the control of the control unit 310, the display unit 341 displays the body orientation of each subject collectively based on the posture information stored in the memory unit 330. Furthermore, under the control of the control unit 310, when the display unit 341 receives a confirmation input from the operation input unit 351, it changes the display of the body orientations of the subjects whose confirmation has been input collectively.

By configuring the display unit 341 in this way, it becomes possible to check at a glance the body orientation and body temperature of the multiple displayed target infants and young children, and also to see at a glance how far the sleep check has progressed, thereby providing a sleep check system that reduces the burden on users such as childcare workers who have to check the sleep of multiple subjects at once, such as during afternoon nap checks.

Furthermore, under the control of the control unit 310, the display unit 341 may display an alert display without changing the display of the confirmed body orientation of the confirmed subject if even one subject is still in a specified body orientation when receiving a confirmation input from the operation input unit 351. Specifically, in a daycare center's nap check, if even one infant or toddler is lying face down, there is a concern that if the display is changed upon receiving the confirmation input, the subject may be mistakenly checked, resulting in a missed check. To address this concern, the display unit 341 may set the specified body orientation to "face down," and if even one child is still lying face down, display an alert display with a message such as "There is a child sleeping face down" without changing the display of the confirmed body orientation of the confirmed subject all at once.

Furthermore, as an example, the display unit 341 may, under the control of the control unit 310, select and display the body orientation of the subject for each age, or for each age and age in months. In naptime checks at daycare centers, when children of different ages and ages are in the same class, there are cases where children aged one and over can be checked every 10 minutes, but are limited to the format of the check form and must be checked every five minutes, the same as for infants. Sleep check practices vary from daycare center to daycare center, but some consider it acceptable to check every 10 minutes for children aged two and over.

The display unit 341 can, for example, display the body orientation of the target for each age and month of the target child (e.g., 0 years and a few months, 1 year, 2 years, etc.), by displaying the body orientation every 5 minutes for a 0-year-old child, and every 10 minutes for a 1-year-old child, thereby displaying only the appropriate number of check targets, thereby contributing to reducing the burden on the user checking. Furthermore, by selecting and displaying on the display side, it is possible to handle the situation without changing the detection interval set in the sensor device 400, thereby providing a highly versatile sleep check system.

Furthermore, as an example, under the control of the control unit 310, the display unit 341 can select and display the body orientation of the subject's display target based on the subject's length of stay stored in the memory unit 330. For example, if the sleep check system 100 is used for afternoon nap checks at a nursery school, children who have just started attending the nursery school may have unstable sleep, so it may be better to check their sleep more frequently (for example, every five minutes) regardless of their age or age in months. It becomes possible to select a check interval (selection of the body orientation of the display target) that is more suited to the actual situation when selecting a check interval based on the child's age or age in months.

As an example, the display unit 341 may, under the control of the control unit 310, change the display of the body orientation of a subject determined by the determination unit of each device to be a frequent tosserfer. Specifically, under the control of the control unit 310, the display unit 341 changes the display to highlight (e.g., by adding text such as "You are tossing and turning abnormally often," by changing the color from other arrows, by making the arrow's border thicker, by flashing it, by changing its size, etc.) the arrow that indicates the body orientation of a subject determined to be a frequent tosserfer. This configuration can notify a user such as a childcare worker checking the sleep that the child's sleep is different from usual, and can make the user aware that the child is likely having difficulty sleeping. The user such as a childcare worker can check the highlighting and improve the child's sleeping environment (e.g., by changing the bedding or blanket) and take preventive measures against SIDS, including having the child sleep on their stomach.

As an example, the display unit 341 may, under the control of the control unit 310, change the display of the body orientation of a subject whose temperature is determined by the determination unit of each device to be abnormal. Specifically, the display unit 341 may, under the control of the control unit 310, change the display to emphasize (e.g., add text such as "Your body temperature is abnormally high," change the color from other numerical displays, make the text bold, flash, change the text size, etc.) the temperature of a subject whose temperature is determined to be abnormal. This configuration makes it possible to determine that the infant is likely to be overheated (and thus likely to develop SIDS), and to take preventive measures such as sleeping face down. Furthermore, research has shown that when the subject is an infant, if the room temperature rises above the child's own body temperature during sleep due to excessive room temperature or excessive clothing, the autonomic nervous system automatically prioritizes thermoregulation, resulting in impaired breathing and cardiac function. Research has shown that many SIDS cases are caused by high fever due to poor health or stress-related high fever due to attending daycare for the first time, so it is important that the infant in question is able to dissipate their body heat appropriately, and notifying users such as daycare workers that their body temperature has risen due to sleeping on their stomach is effective from this perspective as well.

As an example, the display unit 341 may, under the control of the control unit 310, determine whether at least one of the number of people determined to toss and turn frequently or the number of people determined to have an abnormal body temperature among the subjects grouped by the determination unit of each device is greater than a predetermined number. If the result is that the number is greater than a predetermined number, the display unit 341 may display an alert message urging the user to change the sleep environment settings on the collective display of the grouped subjects. For example, if the number of people determined to have an abnormal body temperature is greater than a predetermined number, the display unit 341 may display a pop-up alert message with text such as, "It appears that many children have abnormally high body temperatures. Please change the sleep environment settings, such as by lowering the heating setting or opening a window." This configuration can notify users, such as childcare workers, that many of the children sleeping in the same environment are sleeping differently than usual, thereby making them aware that the overall sleep environment is likely to be inappropriate. Users such as childcare workers can check the alert display and improve the overall sleeping environment for the children in question (for example, by changing the heating and cooling settings, opening windows, etc.), efficiently supporting the improvement of the sleeping environment.

Here, an example of the display mode on the display unit 341 of the sleep check system 100 and the mode of accepting input to the operation input unit 351 will be described using Figure 4. Figure 4 is a diagram showing an example of a screen displayed on the display unit 341 of the terminal device 300 related to the sleep check system 100.

In a case where the sleep check system 100 is used for afternoon nap checks at a nursery school, as shown in the example screen on the left side of Figure 4, the display unit 341 displays an up arrow if the child is lying on their back and a down arrow if they are lying on their stomach for each first predetermined time period (in this example, the first predetermined time period is 5 minutes) for each child in question.

Furthermore, as shown in the example screen on the left side of Figure 4 and the example of the child's personal information table in the memory unit of each device, the display unit 341 is configured to select and display the body orientation of the display target based on the child's age and age in months. For example, for a child named "Soma," who is 0 years and 10 months old, all body orientations for every 5 minutes are selected as display targets, while for a child named "Anji," body orientations for every 10 minutes are selected and displayed as display targets. The display unit 341 is also configured to change the display of body orientation based on the child's length of time at the nursery school. For example, for a child named "Momo," who has only been at the nursery school for a short period of time, the name may be underlined to distinguish it from the display of other children, and the body orientation may be displayed in a square box.

Furthermore, when displaying the body orientation based on the posture information under the control of the control unit 310, the display unit 341 may display a down arrow for a child whose body orientation is "face down" (in this example, the body orientation of "Momo" detected at 13:25), and may display a pop-up alert message such as "<Warning> Momo is sleeping face down." Under the control of the control unit 310, the display unit 341 may provide a "Confirm" button in the pop-up message, and when a user such as a nursery school teacher changes the position of the child from face down to face up, the display may change to show both an up arrow and a down arrow to indicate that the position has been changed, as shown in the example screen on the right side of FIG. 4 .

The audio output unit 342 has the function of outputting output information as audio under the control of the control unit 310. Specifically, the audio output unit 342 may output audio such as "○○-chan is sleeping on her stomach" based on the posture information, for example.

The input unit 350 includes an operation input unit 351 and a voice input unit 352, and has the function of inputting various information to the terminal device 300 under the control of the control unit 310.

The operation input unit 351 has the function of accepting operation input from the user under the control of the control unit 310. Specifically, the operation input unit 351 is realized by soft keys or hard keys on a touch panel or the like.

Specifically, for example, under the control of the control unit 310, the operation input unit 351 accepts confirmation input for some or all of the subjects in a batch in relation to the body orientation of each displayed subject. The operation input unit 351 may also accept input for performing an image capture on the image capture unit 360 under the control of the control unit 310. The operation input unit 351 transmits the accepted input information to the control unit 310, etc. under the control of the control unit 310.

The audio input unit 352 has the function of inputting and accepting audio from the user under the control of the control unit 310. Specifically, the audio input unit 352 is realized by a microphone or the like attached to the terminal device 300. Specifically, the audio input unit 352 may, for example, under the control of the control unit 310, accept confirmation input for some or all of the displayed subjects in relation to the body orientation of each subject, or accept input for performing photography on the photography unit 360. Under the control of the control unit 310, the audio input unit 352 transmits the accepted input information to the control unit 310.

The photographing unit 360 has a function of photographing the product or the like to be put up for sale through a lens provided in the terminal device 300 under the control of the control unit 310. The photographing unit 360 may be, for example, a camera of a mobile terminal.
(Sensor device 400)
As shown in FIG. 2, the sensor device 400 includes a control unit 410, a communication unit 420, a storage unit 430, and a detection unit 440.

The control unit 410 may include a collection unit 411, a calculation unit 412, a determination unit 413, and a generation unit 414, and is a processor with the function of controlling each functional unit of the sensor device 400. Specifically, the control unit 410 may control each functional unit based on, for example, an instruction request received from the information processing device 200 or the terminal device 300. It may also control the transmission of sensing data to the information processing device 200 or the terminal device 300.

The collection unit 411 may have the same functions as the collection unit 211 of the information processing device 200. In other words, the collection process of the sensing data detected by the sensor device 400 may be performed by any of the information processing device 200, the terminal device 300, or the sensor device 400, and may be determined appropriately depending on the processing environment, such as the communication environment and memory capacity, and the business content of the childcare service that uses the sleep check system 100.

The calculation unit 412 may have the same functions as the calculation unit 212 of the information processing device 200. In other words, the calculation processing of various data collected by the collection unit of each device may be performed in any of the information processing device 200, terminal device 300, or sensor device 400, and may be determined appropriately depending on the processing environment, such as the communication environment and memory capacity, and the business content of the childcare service that uses the sleep check system 100.

The determination unit 413 has the same functions as the determination unit 213 of the information processing device 200. That is, in any of the information processing device 200, terminal device 300, and sensor device 400, the determination process may be performed based on the various data collected and generated by the collection unit of each device, and the results calculated by the calculation unit of each device, and may be determined appropriately depending on the processing environment, such as the communication environment and memory capacity, and the business content of the childcare service that uses the sleep check system 100.

The generation unit 414 has the same functions as the generation unit 214 of the information processing device 200. In other words, the information processing device 200, terminal device 300, or sensor device 400 may generate output information based on information stored in the memory of each device, and this may be determined appropriately depending on the processing environment, such as the communication environment and memory capacity, and the business content of the childcare service that uses the sleep check system 100.

The communication unit 420 has the function of communicating with the information processing device 200, the terminal device 300, or other sensor devices 400 via the network 500 under the control of the control unit 410. This communication may be wired or wireless, and any communication protocol may be used as long as mutual communication is possible. Specifically, the communication unit 420 may, for example, receive sensing data from the information processing device 200 or the terminal device 300, or send input information to the information processing device 200.

The memory unit 430 has the function of storing various programs, data, parameters, etc. required for the operation of the sensor device 400 under the control of the control unit 410. Specifically, the memory unit 430 stores, for example, sensing data (posture data, temperature data), posture information, body temperature information, personal information, etc. Specifically, the memory unit 430 is composed of, for example, a main memory device consisting of ROM and RAM, an auxiliary memory device consisting of non-volatile memory, etc., and various recording media such as HDD, SSD, flash memory, etc.

The detection unit 440 includes a posture detection unit 441 and a temperature detection unit 442, and has the function of sensing the sleeping state of the subject. The detection unit 440 may be attached to the subject's body (specifically, attached to clothing worn by the subject) to perform sensing.

The posture detection unit 441 is attached to the subject and detects the orientation of the subject's body at every first predetermined period. Specifically, the posture detection unit 441 is realized using an acceleration sensor, a gyro sensor, or the like. The posture detection unit 441 may use an acceleration sensor or a gyro sensor to detect changes in the tilt of the subject's body (specifically, the tilt of the sensor device 400 attached to the body; more specifically, for example, the angle from a set reference position for posture detection).

When performing calibration (setting the reference position (0°)), the posture detection unit 441 may detect the direction in which the sensor device 400 is facing, and may not perform the calibration process if the direction is not appropriate. With this configuration, for example, if the posture detection unit 441 is calibrated when the subject's body is facing sideways, it may not be possible to correctly detect a prone position, and it is possible to prevent such errors from occurring.

The temperature detection unit 442 detects the body temperature of the subject at every fourth predetermined period. Specifically, the temperature detection unit 442 may be realized using a contact-type thermometer, a non-contact-type thermography, or the like.

(Example of operation)
An example of the operation of the sleep check system 100 according to one embodiment of the present invention will be described below. Fig. 5 is a flowchart showing an example of the operation of the sleep check system 100 according to one embodiment of the present invention, from detection of the subject's body orientation and the like to determination processing.

The detection unit 440 of the sensor device 400 is attached to the subject and detects the subject's body orientation, body temperature, etc. (S10). The detection unit 440 transmits the detection results to the collection unit 311 of the terminal device 300 as sensing data.

The collection unit 311 collects posture data indicating the body orientation of each subject, temperature data indicating the body temperature, etc. (S11). The collection unit 311 generates posture information based on the collected posture data, and generates body temperature information based on the collected temperature data, and stores this information in the storage unit 330 (S12).

When the determination unit 313 determines whether the subject turns over frequently (YES in S13), the calculation unit 312 calculates the average number of times each subject turns over during a third predetermined period based on the posture data stored in the memory unit 330, either periodically or at the timing when the collection unit 311 collects posture data, etc. (S14). The determination unit 313 compares the stored posture data with the calculated average number of times each subject turns over during a third predetermined period to determine whether each subject turns over frequently during a third predetermined period (S15). The determination unit 313 stores the result of this determination in the memory unit 330 and transmits it to the display unit 341 so that the display unit 341 can change the display.

When the determination unit 313 determines whether the subject's body temperature is normal or not (YES in S16), the calculation unit 312 calculates the subject's average body temperature over a fifth predetermined period based on the temperature data stored in the memory unit 330, either periodically or when the collection unit 311 collects posture data, etc. (S17). The determination unit 313 compares the calculated average body temperature with the body temperature indicated by the generated body temperature information for each subject, and determines whether the body temperature is normal or not over a fourth predetermined period (S18). The determination unit 313 stores the result of this determination in the memory unit 330 and transmits it to the display unit 341 so that the display unit 341 can change the display.

If the sleep check is to continue (YES in S19), the subject's body position, body temperature, etc. will be detected periodically at first specified intervals (return to before S10).

Figure 6 is a flowchart showing an example of the operation of the subject display process of the sleep check system 100 according to one embodiment of the present invention.

The display unit 341 of the terminal device 300 collectively displays the body orientation, body temperature, etc. of each subject based on the posture information, body temperature information, etc. stored in the memory unit 330 (S21). When making a group judgment (YES in S22), the judgment unit 313 groups the subjects and judges whether at least one of the number of subjects judged to turn over frequently or the number of subjects judged to have normally high body temperatures is greater than a predetermined number (S23). If it is judged to be greater than the predetermined number (S23), the display unit 341 displays an alert message urging the user to change the settings of their sleeping environment on the collective display of the grouped subjects (S24).

The operation input unit 351 of the terminal device 300 accepts confirmation input for some or all of the subjects in a batch for the body orientation of each displayed subject (S25). When the display unit 341 accepts the confirmation input from the operation input unit 351, it changes the display of the body orientation of the subjects for which confirmation has been input (S26).

Each functional unit of the information processing device 200, terminal device 300, and sensor device 400 may be implemented by a logic circuit (hardware) formed on an integrated circuit (IC (Integrated Circuit) chip, LSI (Large Scale Integration)), or a dedicated circuit, or by software using a CPU (Central Processing Unit) and memory. Each functional unit may be implemented by one or more integrated circuits, or the functions of multiple functional units may be implemented by a single integrated circuit. LSIs are sometimes referred to as VLSIs, super LSIs, ultra LSIs, etc., depending on the level of integration. Note that the term "circuit" here may also refer to digital processing by a computer, i.e., functional processing by software. The circuit may also be implemented by a reconfigurable circuit (e.g., FPGA: Field Programmable Gate Array).

When the functional units of the information processing device 200, terminal device 300, and sensor device 400 are implemented by software, the information processing device 200, terminal device 300, and sensor device 400 each include a CPU that executes instructions from a sleep check program, which is software that implements each function; a ROM (Read Only Memory) or storage device (collectively referred to as "recording medium") in which the sleep check program and various data are recorded in a computer-readable format (or CPU); and a RAM (Random Access Memory) in which the sleep check program is deployed. The object of the present invention is achieved when the computer (or CPU) reads and executes the sleep check program from the recording medium. The recording medium can be a "non-transitory tangible medium," such as a tape, disk, card, semiconductor memory, or programmable logic circuit. The sleep check program can also be supplied to the computer via any transmission medium capable of transmitting the sleep check program (such as a communications network or broadcast waves). The present invention can also be implemented in the form of a data signal embedded in a carrier wave, in which the sleep check program is embodied through electronic transmission.

The sleep check program can be implemented using, for example, scripting languages such as ActionScript and JavaScript (registered trademark), object-oriented programming languages such as Objective-C and Java (registered trademark), and markup languages such as HTML5.

REFERENCE SIGNS LIST 100 Sleep check system 200 Information processing device 210 Control unit 220 Communication unit 230 Storage unit 300 Terminal device 310 Control unit 320 Communication unit 330 Storage unit 340 Output unit 350 Input unit 360 Photography unit 400 Sensor device 410 Control unit 420 Communication unit 430 Storage unit 440 Detection unit 500 Network

Claims (7)

A sleep check system for checking the sleep states of a plurality of subjects as a plurality of infants, comprising:
a detection unit that includes a main body that is detachable from the subject, acquires information on the angle of the main body from a predetermined reference position at every first predetermined period, and detects the body orientation of the subject that depends on the information on the angle, and detects the body temperature of the subject at every fourth predetermined period;
a collection unit that collects posture data indicating the body orientation of each subject detected by the detection unit, and generates posture information that is information indicating the body orientation including a supine state and a prone state , and also collects temperature data indicating the body temperature of each subject detected by the detection unit, and generates information indicating the body temperature;
Detecting a body orientation of each of the subjects based on the posture information acquired for each of the first predetermined periods;
When it is detected that the body orientation is in a supine state, text information indicating that the body orientation is in a supine state is displayed in a list for the number of subjects at once;
a display unit that detects the body temperature information acquired at each of the fourth predetermined periods and displays the detected body temperatures of each of the subjects for the number of the subjects;
and an alert information generation and output unit that, when it is detected based on the posture information that the subject is lying face down, generates alert information indicating that the subject's life is in danger as text information and audio information , outputs the generated text information as a pop-up display generated for each subject , and outputs the generated audio information as audio. The sleep check system of claim 1, characterized in that the display unit selects whether or not to display the subject's body orientation for each age of the subject, or for each age and month of the subject. a storage unit that stores the collected temperature data for a second predetermined period;
the collected posture data is stored in the storage unit for the second predetermined period,
a calculation unit that calculates an average number of times the subject turns over in sleep during a third predetermined period based on the stored posture data;
and a determination unit that compares the number of times the subject turns over in sleep during the third predetermined period indicated by the generated posture information with the calculated average number of times the subject turns over in sleep to determine whether the subject turns over a lot during the third predetermined period,
3. The sleep check system according to claim 1, wherein the display unit changes the display of the body orientation of the subject determined to be tossing and turning frequently. the calculation unit calculates an average body temperature of the subject over a fifth predetermined period based on the stored temperature data;
the determination unit compares the calculated average body temperature with the generated information indicating the body temperature of the subject to determine whether the body temperature is normal during the fourth predetermined period;
The sleep check system according to claim 3 , wherein the display unit changes the display of the body orientation of the subject whose body temperature is determined to be abnormal. A sleep check method in a sleep check system that checks the sleep states of multiple subjects, comprising:
a detection step in which the detection is performed by a detection unit that is provided with a main body unit detachable from the subject, acquires information on an angle of the main body unit from a predetermined reference position at every first predetermined period, and detects the body orientation of the subject that depends on the information on the angle, and detects the body temperature of the subject at every fourth predetermined period;
a collection step in which a collection unit collects posture data indicating the body orientation of each of the subjects detected in the detection step, and generates posture information that is information indicating the body orientation including a supine state and a prone state , and also collects temperature data indicating the body temperature of each of the subjects detected by the detection unit, and generates information indicating the body temperature;
a body orientation of each subject based on the posture information acquired for each first predetermined period in the collection procedure is detected;
When it is detected that the body orientation is in a supine state , text information indicating that the body orientation is in a supine state is displayed all at once using a list for the number of subjects;
a display step of detecting the body temperature information acquired for each of the fourth predetermined periods in the collection step, and displaying the detected body temperature of each of the subjects on a display unit for the number of the subjects;
an alert information generation and output step in which, when it is detected based on the posture information that the subject is lying face down, alert information indicating that the subject's life is in danger is generated as text information and audio information , and the generated alert information of the text information is output as a pop-up display generated for each subject, and the generated alert information of the audio information is output as audio;
A sleep check method in a sleep check system, comprising: A sleep check sensor used in a sleep check system that checks the sleep states of multiple subjects, and that acquires posture information as information for displaying the body orientation of the subjects on a display unit,
a detection unit that is provided with a main body unit that is detachable from the subject, acquires information on an angle of the main body unit from a predetermined reference position at every first predetermined period and detects a body orientation of the subject that depends on the information on the angle, and detects a body temperature of the subject at every fourth predetermined period;
The detection unit
a collection unit that collects posture data indicating body orientation, generates posture information that is information indicating body orientation including a supine state and a prone state, and generates information indicating body temperature, and causes the collection unit to collect the posture data for each of the detected subjects to generate the posture information, and to collect temperature data that indicates the body temperature for each of the subjects to generate information indicating the body temperature;
Detecting a body orientation of each of the subjects based on the posture information acquired for each of the first predetermined periods;
When it is detected that the orientation of the body is in a supine state, text information indicating that the orientation of the body is in a supine state is displayed on the display unit in a list for the number of the subjects, all at once;
Detecting the body temperature information acquired at each of the fourth predetermined periods , and displaying the detected body temperature of each of the subjects on a display unit for the number of the subjects;
When it is detected based on the posture information that the subject is lying face down, alert information indicating that the subject's life is in danger is generated as text information and audio information, and the alert information generated as text information is output as a pop-up display generated for each subject, and the alert information generated as audio information is output as audio . 5. A sleep check program that causes a computer to function as the sleep check system according to claim 1.