WO2021014709A1 - 制御方法、制御装置及びプログラム - Google Patents

制御方法、制御装置及びプログラム Download PDF

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Publication number
WO2021014709A1
WO2021014709A1 PCT/JP2020/018227 JP2020018227W WO2021014709A1 WO 2021014709 A1 WO2021014709 A1 WO 2021014709A1 JP 2020018227 W JP2020018227 W JP 2020018227W WO 2021014709 A1 WO2021014709 A1 WO 2021014709A1
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WIPO (PCT)
Prior art keywords
stimulus
change
amount
sleep state
time
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Ceased
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PCT/JP2020/018227
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English (en)
French (fr)
Japanese (ja)
Inventor
一弘 渡邉
昌明 原田
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Priority to CN202080013730.9A priority Critical patent/CN113439243B/zh
Priority to EP20843902.6A priority patent/EP3916491A4/en
Priority to JP2021534549A priority patent/JP7345102B2/ja
Publication of WO2021014709A1 publication Critical patent/WO2021014709A1/ja
Priority to US17/400,750 priority patent/US12025958B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/16—Controlling the light source by timing means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • G04B25/00—Indicating the time by other means or by combined means
    • G04B25/005—Indicating the time by other means or by combined means in alarm clocks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B25/00—Indicating the time by other means or by combined means
    • G04B25/02—Indicating the time by other means or by combined means by feeling; Clocks or watches for blind persons
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    • G—PHYSICS
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    • H—ELECTRICITY
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    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
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Definitions

  • This disclosure relates to control methods, control devices and programs.
  • the arousal level promoted by the stimulus may vary from person to person. For example, even if two people in the same sleeping state are given the same amount of light, their arousal levels may differ. This is because there are individual differences in sensitivity to stimuli such as sound or light. Therefore, the arousal level of the person who is sensitive to the stimulus may be increased too much, and the person may be woken up earlier than the wake-up set time. This can lead to reduced satisfaction.
  • the present disclosure provides a control method, a control device, and a program that solve the above-mentioned conventional problems.
  • One aspect of the present disclosure is to acquire time information including a wake-up set time, acquire a sleep state of a sleeper who receives a stimulus from a stimulator, determine a change in the sleep state, and perform a predetermined time before the wake-up set time.
  • the stimulus device is started to increase the stimulus that promotes the awakening of the sleeper, and the amount of change in the stimulus is controlled based on the change in the sleep state with respect to the stimulus.
  • the conventional technology there is a possibility that individual differences may occur in the arousal level promoted by the stimulus. For example, the arousal level of a person who is sensitive to a stimulus may be increased too much, and the person may be awakened earlier than the set time for waking up. This can lead to reduced sleep satisfaction.
  • the arousal level of a person who is insensitive to stimuli may not be sufficiently high, and the person may not be able to wake up at the set wake-up time.
  • the comfort of awakening has a great influence on the improvement of satisfaction. If awakening is suddenly promoted by sound or light during the slow-wave sleep period, which is a deep sleep state, strong drowsiness may occur again. This is called sleep inertia and is known to be a major factor in lowering satisfaction. Therefore, in a state where the arousal level is not sufficiently increased, that is, in a deep sleep state, promoting awakening with a strong stimulus may lead to a decrease in the satisfaction level.
  • time information including the wake-up set time is acquired, the sleep state of the sleeper who receives the stimulus from the stimulator is acquired, the change in the sleep state is determined, and the wake-up set time is obtained.
  • the control start time which is a predetermined time before the above, the stimulus device is started to increase the stimulus that promotes the awakening of the sleeper, and the amount of change in the stimulus is controlled based on the change in the sleep state with respect to the stimulus.
  • the sleep state includes the body movement amount of the sleeper, and the change amount of the stimulus is determined based on the specified value according to the relationship between the change of the body movement amount and the specified range with respect to the stimulus. You may.
  • the amount of change in the given stimulus can be changed depending on whether or not the change in the amount of body movement is larger than the expected change. Therefore, it is possible to suppress excessive stimulation or insufficient stimulation amount.
  • the amount of change in the stimulus when the change in the amount of body movement with respect to the stimulus is larger than the specified range, the amount of change in the stimulus may be smaller than the specified value.
  • the change in the stimulus can be moderated.
  • awakening earlier than the set time for waking up can be suppressed.
  • the amount of change in the stimulus when the change in the amount of body movement with respect to the stimulus is smaller than the specified range, the amount of change in the stimulus may be larger than the specified value.
  • the change in the stimulus can be made abrupt.
  • the sleep state includes the sleep stage of the sleeper, and the amount of change in the stimulus is determined based on the specified value according to the relationship between the transition of the sleep stage and the specified transition with respect to the stimulus. You may.
  • the amount of change in the given stimulus can be changed depending on whether or not the sleep stage after the change is the sleep stage of the expected sleep depth. Therefore, it is possible to suppress excessive stimulation or insufficient stimulation amount.
  • the change pattern of the stimulus is acquired, the amount of change of the stimulus is controlled based on the change pattern of the stimulus, and the change pattern of the stimulus is set by using the change of the sleep state with respect to the stimulus. You may.
  • the change pattern of the stimulus which is the basis for determining the change amount of the stimulus
  • the difference between the change amount of the stimulus suitable for the sleeper and the specified value Becomes smaller. That is, the amount of adjustment of the amount of change in stimulus is reduced. Therefore, it is possible to reduce the calculation amount or calculation time required to adjust the change amount of the stimulus to a value suitable for the sleeper.
  • the stimulus start time may be set by using the change in the sleep state with respect to the stimulus.
  • the start time of the stimulus is shifted based on the change in the sleep state with respect to the stimulus, the difference between the amount of change in the stimulus suitable for the sleeper and the specified value becomes small. That is, the amount of adjustment of the amount of change in stimulus is reduced. Therefore, it is possible to reduce the calculation amount or calculation time required to adjust the change amount of the stimulus to a value suitable for the sleeper.
  • the amount of change in the stimulus may be controlled at intervals of time required for estimating the sleep state.
  • the amount of change in the stimulus is controlled based on the change in the sleep state with respect to the stimulus and the amount of the stimulus does not reach the target amount in the set wake-up time, after the set wake-up time.
  • the amount of change in the stimulus may be controlled so that the amount of the stimulus reaches the target amount at a predetermined timing.
  • the arousal level of the sleeper can be continuously increased.
  • the predetermined timing may be a time when the alarm issued at the wake-up set time is reactivated after the predetermined time.
  • the sleeper when the amount of change in the stimulus is controlled based on the change in the sleep state with respect to the stimulus and the amount of the stimulus does not reach the target amount in the wake-up set time, the sleeper is awakened and then The amount of change in the stimulus may be controlled so that the amount of the stimulus reaches the target amount.
  • the stimulus amount even if the stimulus amount does not reach the target amount at the wake-up set time, the stimulus amount reaches the target amount after awakening, so that the sleeper does not have to operate the stimulator after awakening.
  • the type of stimulus or the mode of the stimulus is selected according to the change in the sleep state with respect to the stimulus, and the selection is based on the change in the sleep state with respect to the selected stimulus of the type or the mode.
  • the amount of change in the stimulus of the above-mentioned type or the above-mentioned embodiment may be controlled.
  • the stimulus may be at least one of light, sound, tactile vibration, wind, and heat.
  • control devices may be implemented in control devices, stimulus control systems, integrated circuits, computer programs, or non-temporary recording media such as computer-readable CD-ROMs. It may be realized by any combination of a control device, a stimulus control system, an integrated circuit, and a recording medium.
  • FIG. 1 is a diagram showing a stimulus control system and its surroundings according to the first embodiment of the present disclosure.
  • the stimulus control system includes a control device 100A, a sensor 200, and a stimulus device 300.
  • the sensor 200 communicates with the control device 100A via the wireless router 400.
  • the sensor 200 is installed in the bedding 500.
  • control device 100A and the stimulator 300 are connected via Bluetooth® communication.
  • the control device 100A, the wireless router 400, the sensor 200, and the wireless router 400 are each connected via Wi-Fi (registered trademark) communication.
  • Wi-Fi registered trademark
  • the communication method used for connection is not limited to these, and other methods of general short-range wireless communication, wireless communication for specific purposes such as ECHONET Lite (registered trademark), 4G (4th Generation) / LTE ( It may be mobile phone communication such as Long Term Evolution), wired communication using a wire, or the like.
  • the control device 100A is a communication terminal.
  • the control device 100A is, for example, a smartphone, a tablet terminal, or a smart speaker.
  • the control device 100A controls the stimulator 300 by receiving biological information from the sensor 200 and transmitting a control instruction to the stimulator 300.
  • the sensor 200 senses human biological information.
  • the sensor 200 is installed on a bedding 500 such as a bed mat.
  • the sensor 200 is a sensor that acquires biological information such as heartbeat, respiration, body movement, sweating, body temperature, or brain wave.
  • the sensor 200 may be a piezoelectric sensor, a radio wave sensor, an optical sensor, an image processing sensor, or the like.
  • the sensor 200 may be arranged above or below the bed mat, and may be built in the mattress.
  • the sensor 200 may be arranged on the leg of the bed in the case of the piezoelectric type, and may be arranged around the bedding 500 in the case of the radio wave type or the image processing type.
  • the sensor 200 may be built in the control device 100A or another communication terminal. Further, the sensor 200 may be directly connected to the control device 100A by using wireless communication such as Bluetooth without going through the wireless router 400.
  • the stimulator 300 outputs a stimulus that promotes awakening of the sleeper.
  • the stimulator 300 is a lighting device that outputs light, a speaker that outputs sound, a vibrator that outputs tactile vibration, a blower that outputs wind, an air conditioner that outputs heat, and the like.
  • the number of stimulators 300 may be plural.
  • the stimulus device 300 may be a device that outputs a plurality of stimuli.
  • the stimulator 300 may be connected to the control device 100A via the wireless router 400.
  • the stimulator 300 is a ceiling light as a lighting fixture that stimulates light.
  • the wireless router 400 mediates communication using wireless communication.
  • the wireless router 400 may be a home gateway of HEMS (Home Energy Management System).
  • HEMS Home Energy Management System
  • FIG. 2 is a diagram showing a configuration of a stimulus control system according to the first embodiment of the present disclosure.
  • the control device 100A includes a sleep state acquisition unit 101, a determination unit 102, a stimulus control unit 103, a time acquisition unit 104, an operation unit 105, a storage unit 106, and a stimulus unit 107.
  • the sleep state acquisition unit 101 acquires biological information of the sleeper who receives the stimulus from the stimulator 300.
  • the stimulator 300 is installed in a space where the sleeper sleeps.
  • the sleep state acquisition unit 101 acquires the biological information of the sleeper sleeping in the room in which the stimulator 300 is set from the sensor 200 installed on the mattress of the bed containing the sleeper.
  • the biological information includes the amount of body movement and the sleep stage as shown in FIG. 3, and is acquired at predetermined time intervals.
  • the predetermined time interval may be, for example, the time interval required for estimating the sleep state.
  • the acquired sleep state is stored in the storage unit 106.
  • the sleep state acquisition unit 101 may acquire the sleep state by estimating the sleep state using biological information.
  • biometric information includes data on body movement, heart rate, and respiration.
  • the sleep stage may be estimated using the elapsed time from the time of falling asleep.
  • the determination unit 102 determines the change in the sleep state. Specifically, the determination unit 102 determines the change in the sleep state each time the sleep state acquisition unit 101 acquires the sleep state. For example, the determination unit 102 determines the amount of change in the amount of body movement. In addition, the determination unit 102 determines the transition of the sleep stage. In addition, instead of or in combination with the amount of body movement, the amount of change in heart rate or respiratory rate may be determined.
  • the stimulus control unit 103 controls the stimulus by the stimulus device 300. Specifically, the stimulus control unit 103 causes the stimulus device 300 to start increasing the stimulus at the control start time, which is a predetermined time before the wake-up set time. More specifically, the stimulus control unit 103 sets the control start time using the change in the sleep state in response to the stimulus. For example, when the control start time arrives, the stimulus control unit 103 acquires the sleep state and acquires the adjustment value associated with the acquired sleep state from the database as shown in FIG. The stimulus control unit 103 changes the control start time based on the acquired adjustment value.
  • the stimulus control unit 103 determines the adjustment value of the control start time based on the change in the sleep state in the control of the amount of change in the stimulus immediately after the start of the stimulus control (in other words, the first time). For example, when the change in sleep state is larger than the specified value, an adjustment value is set, and as shown in FIG. 5, the adjustment value is added to the database in association with the sleep state before the change. The set adjustment value may be updated based on the accumulated adjustment value. For example, the adjustment values may be updated by averaging a plurality of adjustment values having similar sleep states. Then, when the control start time arrives, the stimulus control unit 103 causes the stimulus device 300 to start increasing the stimulus. The stimulus control unit 103 starts the stimulus when the stimulus device 300 is not outputting the stimulus, and outputs the stimulus when the stimulus device 300 is in the state of outputting the stimulus. The amount of stimulation inside will be increased.
  • the stimulus control unit 103 controls the amount of change in the stimulus based on the change in the sleep state with respect to the stimulus. Specifically, the stimulus control unit 103 determines the amount of change in stimulus based on the specified value according to the relationship between the change in the amount of body movement determined by the determination unit 102 and the specified range. Further, the stimulus control unit 103 determines the amount of change in the stimulus based on the specified value according to the relationship between the transition of the sleep stage determined by the determination unit 102 and the specified transition. The stimulus control unit 103 controls the amount of change in stimulus based on the change pattern of stimulus. For example, as shown in FIG.
  • a specified value of the change amount of the stimulus is set for each section according to the elapsed time from the start of the stimulus.
  • the change pattern of the stimulus is acquired from the storage unit 106. In this way, since the amount of change is constant for each section, it is possible to determine the change in the sleep state in response to the stimulus.
  • the stimulus control unit 103 may set a stimulus change pattern based on a change in the sleep state with respect to the stimulus. For example, the stimulus control unit 103 selects a pattern in which the change in stimulus is more gradual when the change in sleep state is larger than the specified value. On the contrary, when the change in sleep state is smaller than the specified value, the stimulus control unit 103 selects a pattern in which the change in stimulus is more abrupt.
  • the stimulus control unit 103 controls the operation of the stimulus unit 107 based on the operation received by the operation unit 105. Specifically, the stimulus control unit 103 stops the stimulus of the stimulus unit 107 when the operation unit 105 receives the stimulus stop operation.
  • the time acquisition unit 104 acquires time information including the wake-up set time. Specifically, the time acquisition unit 104 acquires the wake-up set time from the storage unit 106. In addition, the time acquisition unit 104 acquires the current time. The current time may be acquired via communication, or may be acquired from a timer that manages the time provided in the control device 100A.
  • the operation unit 105 receives an operation on the control device 100A. Specifically, the operation unit 105 accepts operations such as setting and stopping the stimulation unit 107.
  • the storage unit 106 stores information used in the processing of the control device 100A. Specifically, the storage unit 106 stores information such as the sleep state, the change pattern of the stimulus, and the adjustment value of the control start time described above.
  • the stimulus unit 107 outputs a stimulus that promotes awakening of the sleeper. Specifically, the stimulus unit 107 outputs a stimulus of a type different from the stimulus output by the stimulus device 300.
  • the stimulation unit 107 is a speaker that outputs a sound as an alarm.
  • FIG. 7 is a flowchart showing the processing of the stimulus control system according to the first embodiment of the present disclosure.
  • control device 100A waits until it is determined that the control start time has arrived (step S1001). Specifically, the stimulus control unit 103 waits until a predetermined time before the wake-up set time acquired by the time acquisition unit 104.
  • step S1002 the control device 100A determines whether or not the control start time has been updated (step S1002). Specifically, the stimulus control unit 103 determines whether or not the control start time update process has been executed when a predetermined time has passed from the wake-up set time. Further, the stimulus control unit 103 determines whether or not the adjustment value of the control start time exists in the database.
  • step S1003 the control device 100A acquires the sleep state (step S1003). Specifically, when it is determined that the control start time update process has not been executed, the stimulus control unit 103 acquires the sleep state acquired by the sleep state acquisition unit 101 from the storage unit 106.
  • the control device 100A updates the control start time using the adjusted value and the acquired sleep state (step S1004).
  • the stimulus control unit 103 refers to a database as shown in FIG. 4 and acquires an adjustment value that matches the acquired sleep state (that is, body movement amount, sleep stage). The stimulus control unit 103 adds the acquired adjustment value to the control start time. After that, the process returns to step S1001.
  • step S1002 the control device 100A causes the stimulator 300 to start increasing the stimulus (step S1005). Specifically, the stimulus control unit 103 starts increasing the stimulus on the assumption that the updated control start time has arrived. If it is determined that the adjustment value does not exist in the database, the process proceeds to step S1005.
  • the control device 100A acquires the sleep state and stores the adjustment value of the control start time based on the change in the sleep state for the first time (step S1006). Specifically, the determination unit 102 determines whether or not the change in body movement, heart rate, or respiratory rate exceeds a predetermined range when the increase in stimulation is started. In addition, the determination unit 102 determines whether or not the transition of the sleep stage is a predetermined transition. The details of the determination process will be described later with reference to FIG. When the change such as the amount of body movement exceeds the specified range or the transition of the sleep stage is not the specified transition, the determination unit 102 adjusts the control start time based on the degree of deviation from the predetermined range or the specified transition. Calculate the value. The determination unit 102 stores the calculated adjustment value in the database in the storage unit 106 in association with the sleep state before the increase of the stimulus is started.
  • control device 100A controls the amount of change in the stimulus based on the change in the sleep state with respect to the stimulus (step S1007). The process will be described later.
  • the control device 100A determines whether or not the set time for waking up has arrived, or whether the sleeper has awakened or woke up (step S1008). Specifically, the stimulus control unit 103 determines whether or not the wake-up set time has arrived, and whether or not the sleep stage determined by the determination unit 102 is awakening or wake-up. The determination unit 102 determines whether the sleep stage is awake or awake based on the acquired sleep state. The determination unit 102 may determine whether the sleep stage is awake or awake based on the operation of the operation unit 105. For example, when the operation unit 105 receives an operation to stop the alarm, it is determined that the sleep stage is awakening or waking up.
  • step S1008 that is, when it is determined that the set time for waking up has arrived, or the sleeper has awakened or woke up, the control device 100A causes the stimulator 300 to stop the increase in stimulation (step S1009). .. Specifically, the stimulus control unit 103 causes the stimulus device 300 to stop the increase of the stimulus when the wake-up set time has arrived or the determined sleep stage is awakening or wake-up.
  • step S1008 If No in step S1008, that is, if it is determined that the wake-up setting time has not arrived and the sleeper is not awake or wake-up, the process returns to step S1007. Specifically, when the set time for waking up has not arrived and the determined sleep stage is not awakening or waking up, the process returns to step S1007.
  • the stimulus control unit 103 may stop the stimulus. For example, when the stimulus is sound or tactile vibration, the stimulus control unit 103 causes the stimulus device 300 to stop the stimulus.
  • step S1007 is a flowchart showing details of a part of the processing of the stimulus control system according to the first embodiment of the present disclosure (that is, step S1007).
  • the control device 100A acquires the change interval of the change amount of the stimulus (step S1101). Specifically, the determination unit 102 acquires the interval of the time during which the sleep state is acquired from the storage unit 106 as the change interval of the amount of change in the stimulus.
  • the time interval at which the sleep state is acquired is the time interval required for estimating the sleep state.
  • the change interval of the amount of change in the stimulus may be an interval of any length as long as it is longer than the interval of the time required for estimating the sleep.
  • the control device 100A determines the change in the amount of body movement or the sleep stage between the immediately preceding section (in other words, the first section) and the immediately preceding section (in other words, the second section) for each change interval. (Step S1102). Specifically, the determination unit 102 calculates the amount of change in the amount of body movement by comparing the amount of body movement in the first section with the amount of body movement in the second section. In addition, the determination unit 102 calculates the transition of the sleep stage from the second section to the first section.
  • the control device 100A determines whether or not the amount of change in the amount of body movement in response to the stimulus exceeds the specified range, or the transition of the sleep stage is earlier than the specified transition (step S1103). Specifically, the stimulus control unit 103 determines whether or not the change in the amount of body movement exceeds a predetermined range.
  • the specified range is a range in which a predetermined value is added or subtracted from the specified value.
  • the stimulus control unit 103 determines whether or not the sleep stage has transitioned to the shallow sleep stage earlier than the predetermined transition. For example, the stimulus control unit 103 determines whether or not the transition from the stage 3 to the stage 1 has occurred when the defined transition is the transition from the stage 3 to the stage 2.
  • step S1103 that is, when it is determined that the amount of change in the amount of body movement with respect to the stimulus exceeds the specified range, or the transition of the sleep stage is earlier than the specified transition, the control device 100A is stimulated.
  • the amount of change is reduced from the specified value (step S1104).
  • the stimulus control unit 103 reduces the amount of change in the stimulus from the specified value according to the excess amount.
  • the stimulus control unit 103 reduces the amount of change in the stimulus from the predetermined value according to the degree of progress of the stage.
  • step S1103 determines whether the amount of change in the amount of body movement in response to the stimulus is less than the specified range, or the transition of the sleep stage is slower than the specified transition. Specifically, the stimulus control unit 103 determines whether or not the change in the amount of body movement is less than a specified range (for example, a range in which a predetermined value is added or subtracted from the specified value). Further, the stimulus control unit 103 determines whether or not the transition of the sleep stage is slower than the predetermined transition. For example, the stimulus control unit 103 determines whether or not the stage 3 remains stagnant when the defined transition is the transition from the stage 3 to the stage 2.
  • a specified range for example, a range in which a predetermined value is added or subtracted from the specified value
  • step S1105 determines the amount of change in the stimulus. Is increased from the specified value (step S1106). Specifically, when the change in the amount of body movement is less than the specified range, the stimulus control unit 103 increases the amount of change in the stimulus from the specified value according to the shortage. Further, when the transition of the sleep stage is slower than the predetermined transition, the stimulus control unit 103 increases the amount of change in the stimulus from the specified value according to the degree of stagnation of the stage.
  • step S1105 If No in step S1105, that is, if it is determined that the amount of change in the amount of body movement with respect to the stimulus is not less than the specified range and the transition of the sleep stage is not slower than the specified transition, the control device 100A changes the stimulus. The amount remains at the specified value (step S1107). Specifically, the stimulus control unit 103 determines the specified value as the amount of change in the next stimulus.
  • FIG. 9 is a graph showing an example of a change in the amount of stimulation in the first embodiment of the present disclosure.
  • the control device 100A updates the control start time based on the adjustment value specified from the sleep state. For example, the control start time is updated from T0 to D2 (T0').
  • the change pattern of the stimulus may be shifted from the pattern X1 to the pattern X2 in the time direction. Further, at the time of shifting, the change pattern of the stimulus may be corrected based on the wake-up set time and the like.
  • control device 100A When the control start time T0'after the current time is updated, the control device 100A starts increasing the stimulus. The increase in stimulation is continued until at least the target stimulation amount is reached or the wake-up set time is reached.
  • the control device 100A controls the change amount of the stimulus based on the change of the sleep state. For example, in the example of the pattern X2a of FIG. 9, the change amount of the stimulus is increased more than the specified amount, and the stimulus amount is suddenly increased as compared with the pattern X2 when the change amount of the stimulus is controlled by the specified amount. There is. This is control when the change in sleep state is smaller than specified (for example, when the transition of the sleep stage is slow). Further, in the example of the pattern X2b of FIG. 9, the change amount of the stimulus is reduced from the specified amount, and the stimulus amount is gradually increased up to the wake-up set time T1 as compared with the pattern X2.
  • the stimulus control unit 103 may continuously increase the stimulus amount until the stimulus amount reaches the target stimulus amount. Further, the stimulus control unit 103 may increase the stimulus amount until the stimulus amount reaches the target stimulus amount after the time Tw when the sleeper awakens or wakes up elapses. Then, the increase in stimulation is stopped at the time Tn when the stimulation amount reaches the target stimulation amount.
  • the time information including the wake-up set time is acquired, the sleep state of the sleeper who receives the stimulus from the stimulator is acquired, the change in the sleep state is determined, and the wake-up is performed.
  • the control start time which is a predetermined time before the set time
  • the stimulus device is started to increase the stimulus that promotes the awakening of the sleeper, and the amount of change in the stimulus is controlled based on the change in the sleep state with respect to the stimulus.
  • FIG. 10 is a graph showing an example of a change in the amount of stimulation in the modified example 1 of the present disclosure.
  • the control device 100A controls the stimulus amount at the change interval of the stimulus change amount. Specifically, the stimulus control unit 103 changes the stimulus amount based on the determined stimulus change amount at the timing of the stimulus change amount change interval. For example, as shown in FIG. 10, the stimulus control unit 103 keeps the stimulus amount constant without changing it in the interval between the change timings of the stimulus change amount. Then, the stimulus control unit 103 determines the amount of increase in stimulus based on the change in sleep state at the timing of changing the amount of change in stimulus, and increases the amount of stimulus by the determined amount of increase. Therefore, as shown in FIG. 10, the amount of stimulation changes stepwise.
  • the stimulus does not change in the above section, that is, the sleep state measurement period
  • sleep for the stimulus between the adjacent sections is compared with the case where the stimulus changes with time in the above section as in the first embodiment.
  • the change in state can be determined more accurately.
  • the control device 100A increases the stimulation amount until the additional stimulation amount larger than the target stimulation amount is reached. For example, as shown in FIG. 11, the stimulus amount reaches the target stimulus amount at the wake-up set time T1, but when the sleeper is not awake, the stimulus control unit 103 reaches the additional stimulus amount. Increase until Further, the increase in the stimulation amount may be controlled so that the stimulation amount reaches the additional stimulation amount at the timing Ts1 when the alarm is reactivated. If the sleeper does not awaken even when the additional stimulus amount is reached, the stimulus amount may be maintained at the additional stimulus amount until the time Tw when the sleeper awakens, as shown in FIG. When the sleeper awakens, the amount of stimulation is reduced to the target amount of stimulation.
  • the control device 100A controls the amount of change in the stimulus so that the stimulus amount reaches the target stimulus amount at a predetermined timing after the wake-up set time.
  • the stimulus control unit 103 does not reach the target stimulus amount at the wake-up set time T1
  • the stimulus control unit 103 reactivates the alarm issued at the wake-up set time at the first timing Ts1 as shown in FIG.
  • the amount of stimulation may be controlled so that the amount of stimulation reaches the target amount of stimulation.
  • the stimulation amount may be controlled so that the stimulation amount reaches the additional stimulation amount at the second timing Ts2 when the alarm is reactivated.
  • control device 100A may change the mode of change of the stimulus after the wake-up set time has elapsed. For example, as shown in FIG. 13, the stimulus control unit 103 increases the stimulus amount until the additional stimulus amount is reached after the wake-up set time T1 elapses. After that, the stimulus control unit 103 periodically increases or decreases the amount of stimulus within a predetermined range as shown in FIG. For example, the stimulus control unit 103 increases the stimulus amount so that the stimulus amount reaches the additional stimulus amount at the first timing Ts1 when the alarm is restarted after the wake-up set time T1 elapses.
  • the stimulus control unit 103 reduces the stimulus amount from the target stimulus amount within the range from the first timing Ts1 when the alarm is restarted to the second timing Ts2 when the alarm is restarted, and then stimulates again. Increase the amount to the amount of additional stimulation.
  • the amount of stimulation is increased or decreased until the sleeper awakens. After the sleeper awakens, the stimulus amount is changed to the target stimulus amount. As a result, awakening can be strongly promoted rather than continuing to give a constant stimulus.
  • FIG. 14 is a block diagram showing an example of the configuration of the stimulus control system according to the third modification of the present disclosure.
  • the stimulus control system in the third modification includes a server 600 in addition to the control device 100B, the sensor 200, and the stimulus device 300.
  • the control device 100B has basically the same configuration as the control device 100A except that the determination unit 102 is not provided.
  • the server 600 includes a determination unit 601 and a storage unit 602.
  • the function of the determination unit 601 is the same as that of the determination unit 102.
  • the storage unit 602 stores information for determining the change in the sleep state, for example, the sleep state acquired by the sleep state acquisition unit 101. Information such as the sleep state is acquired from the control device 100B via communication and stored in the storage unit 602. For example, the capacity of the storage unit 602 is larger than the capacity of the storage unit 106. Further, the processing performance of the server 600 is higher than that of the control device 100B.
  • the change in the sleep state is determined by the server 600 whose computational resources such as storage capacity or computational performance such as processing performance is higher than that of the control device 100B.
  • the more information on the sleep state used for the determination the more accurately the change in the sleep state can be determined. Therefore, the amount of change in stimulus can be controlled more accurately, and the degree of satisfaction with sleep can be improved.
  • the control device 100A selects the type of stimulus according to the change in the sleep state. For example, the stimulus control unit 103 selects a strong type of stimulus when the change in sleep state is smaller than the specified value.
  • the stimulus control unit 103 causes the stimulus device that outputs the selected stimulus to output the stimulus, and causes the stimulus device before selection to stop the stimulus.
  • the stimulus control unit 103 may combine a plurality of stimuli so that the total stimulus amount becomes a predetermined stimulus amount.
  • the mode of stimulation may be changed.
  • the control device 100A selects the mode of stimulation according to the change in the sleep state.
  • the stimulus control unit 103 selects a mode in which the stimulus is strong when the change in the sleep state is smaller than the specified value.
  • the stimulus control unit 103 selects a mode in which the amount of stimulus changes periodically as described in the second modification.
  • control device 100A may select the type or mode of stimulation according to the surrounding environment of the sleeper.
  • the stimulus control unit 103 selects sound instead of light as the type of stimulus in an environment with high illuminance such as when the morning sun shines in, and controls the stimulus using a speaker.
  • Embodiment 2 Next, a second embodiment of the present disclosure will be described.
  • the control start time is adjusted based on the quality of sleep.
  • the configuration of the control device 100 in the second embodiment is the same as the configuration of the control device 100A or 100B in the first embodiment, but the operations of the determination unit 102 or the determination unit 601 and the stimulus control unit 103 are partially different.
  • the determination unit 102 determines the sleep score using the sleep state. Specifically, the determination unit 102 determines the sleep score based on the body movement amount, heart rate, respiratory rate, etc. acquired at the control start time. The sleep score may be determined based on the sleep state during the period from the start of bedtime to the start time of control.
  • the stimulus control unit 103 adjusts the control start time based on the sleep score. Specifically, the stimulus control unit 103 waits for the start of control based on the sleep score determined by the determination unit 102. Further, the stimulus control unit 103 may set an adjustment value of the control start time based on the sleep score based on the change in the sleep state after the start of the stimulus. For example, when the change in the sleep state is larger than the specified value, the stimulus control unit 103 stores the adjusted value in association with the sleep score.
  • FIG. 15 is a flowchart showing a part of the processing of the stimulus control system according to the second embodiment of the present disclosure.
  • the control device 100 determines the sleep score and the sleep stage using the sleep state (step S1201). Specifically, the determination unit 102 determines the sleep score based on the sleep state such as the amount of body movement. In addition, the determination unit 102 determines the sleep stage as in the first embodiment.
  • the control device 100 determines whether or not the sleep score is higher than the reference value, or the sleep stage is a stage deeper in sleep than the reference stage (step S1202). Specifically, the stimulus control unit 103 determines whether or not the sleep score is higher than the preset reference value. Further, the stimulus control unit 103 determines whether or not the sleep stage is a stage deeper in sleep than the preset reference stage.
  • the reference value or the reference stage is stored in the storage unit 106.
  • step S1202 If No in step S1202, that is, if it is determined that the sleep score is not higher than the reference value and the sleep stage is not a stage deeper in sleep than the reference stage, the control device 100 wakes up from the current time. It is determined whether or not the remaining time until the set time is equal to or longer than the predetermined time (step S1203). Specifically, when the quality of sleep is lower than the reference, the stimulus control unit 103 determines whether or not the remaining time from the current time to the set time for waking up is equal to or longer than a predetermined time. For example, the predetermined time of the remaining time is 5 minutes or the like.
  • step S1204 the control device 100 waits for a predetermined time (step S1204). After waiting, the process returns to step S1201. Specifically, when the remaining time from the current time to the wake-up set time is equal to or longer than a predetermined time, the stimulus control unit 103 delays the stimulus start time by waiting for a predetermined time. For example, the waiting time is 1 minute.
  • step S1202 that is, if the sleep score is higher than the reference value, or if the sleep stage is determined to be a stage deeper in sleep than the reference stage, or if No in step S1203, The process proceeds to step S1005, and stimulation control is started.
  • the control start time is adjusted based on the quality of sleep.
  • stimulus control for waking up is started in a state where the quality of sleep is high. Therefore, it is possible to provide a comfortable awakening and improve the satisfaction level with sleep.
  • control method, control device and program according to the present disclosure can suppress individual differences in the arousal level promoted by the stimulus, they are useful as the control method, control device and program for controlling the stimulus device that outputs the stimulus. ..

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JP2015207380A (ja) * 2014-04-17 2015-11-19 パナソニックＩｐマネジメント株式会社 照明器具

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