JP2017000211A - Sleep environment control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sleep environment control system capable of providing a sleep environment according to a sleep state to a user.SOLUTION: A sleep environment control system 10 comprises: a blowing part 41 for sending warm air or cool air to a mattress 30; a temperature detection part 51 for detecting temperature of the mattress 30; and a humidity detection part 52 for detecting humidity of the mattress 30. The sleep environment control system 10 further comprises: a humidity adjustment part 42 having at least a humidification function, and adjusting humidity of the mattress 30 according to humidity detected by the humidity detection part 52; and a living body information acquisition part 53 for acquiring living body information of a user 60 who uses the mattress 30. The sleep environment control system 10 further comprises: a determination part 43 for determining a sleep state of the user 60 based on the living body information acquired by the living body information acquisition part 53; and a control part 44 for controlling the blowing part 41 according to the sleep state determined by the determination part 43, thereby adjusting temperature of the mattress 30 detected by the temperature detection part 51.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a sleep environment control system.

  In recent years, proposals for improving the quality of sleep have been made in response to an increase in stress and a reduction in sleep time. For example, Patent Literature 1 discloses a technology that uses a futon dryer as a heater during sleep.

Japanese Patent Laid-Open No. 05-192696

  In order to provide the user with a more comfortable sleep environment, it is necessary not only to heat the user during sleep but also to provide a sleep environment according to the sleep state.

  The present invention provides a sleep environment control system that can provide a user with a sleep environment according to a sleep state.

  The sleep environment control system according to one aspect of the present invention includes a blower that sends warm air or cool air to the bedding, a temperature detector that detects the temperature of the bedding, a humidity detector that detects the humidity of the bedding, A humidity adjustment unit that has at least a humidification function and adjusts the humidity of the bedding according to the humidity detected by the humidity detection unit; and a biometric information acquisition unit that acquires biometric information of a user who uses the bedding The temperature is determined by determining the sleep state of the user based on the biological information acquired by the biological information acquisition unit, and controlling the air blowing unit according to the sleep state determined by the determination unit. A control unit that adjusts the temperature of the bedding detected by the detection unit.

  According to the sleep environment control system of the present invention, a sleep environment corresponding to the sleep state can be provided to the user.

1 is an external perspective view of a sleep environment control system according to Embodiment 1 in a state where there is a futon. FIG. 2 is an external perspective view of the sleep environment control system according to Embodiment 1 with no futon. FIG. 3 is an external perspective view of the sleep environment control system according to Embodiment 1 being used by a user. FIG. 4 is a block diagram illustrating a functional configuration of the sleep environment control system according to the first embodiment. FIG. 5 is a diagram for explaining a sleep state. FIG. 6 is an example of a flowchart of the operation of the sleep environment control system according to the first embodiment. FIG. 7 is a diagram illustrating a change in ideal futon temperature (bed temperature) with respect to a sleep state (sleep depth). FIG. 8 is a diagram showing the relationship between mite growth and temperature and humidity. FIG. 9 is a diagram showing a growth range of wet mold and a growth range of dry mold. FIG. 10 is an example of a flowchart when the operation in the first mode and the operation in the second mode are selectively executed. FIG. 11 is an external perspective view of a sleep environment control system according to a modification.

  Hereinafter, embodiments will be described with reference to the drawings. It should be noted that each of the embodiments described below shows a comprehensive or specific example. The numerical values, shapes, materials, constituent elements, arrangement positions and connecting forms of the constituent elements, steps, order of steps, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements.

  Each figure is a schematic diagram and is not necessarily shown strictly. Moreover, in each figure, the same code | symbol is attached | subjected to substantially the same structure, and the overlapping description may be abbreviate | omitted or simplified.

(Embodiment 1)
[Constitution]
First, the overall configuration of the sleep environment control system according to Embodiment 1 will be described. 1 is an external perspective view of a sleep environment control system according to Embodiment 1 in a state where there is a futon. FIG. 2 is an external perspective view of the sleep environment control system according to Embodiment 1 with no futon. FIG. 3 is an external perspective view of the sleep environment control system according to Embodiment 1 being used by a user. FIG. 4 is a block diagram illustrating a functional configuration of the sleep environment control system according to the first embodiment.

  The sleep environment control system 10 shown in FIGS. 1 to 4 is a system for providing a comfortable sleep environment to the user 60 who uses the futon 30 arranged on the bed body 20. The futon 30 is a mattress and is an example of bedding. The sleep environment control system 10 includes a blower 40, a temperature / humidity detection unit 50, and a biological information acquisition unit 53. Hereinafter, each component of the sleep environment control system 10 will be described.

[Temperature and humidity detector]
The temperature / humidity detector 50 is a sensor unit for detecting the temperature and humidity of the futon 30. As shown in FIG. 1, the temperature / humidity detection unit 50 is disposed, for example, inside the futon 30, but may be disposed between the upper surface of the bed body 20 and the futon 30. The temperature / humidity detection unit 50 may be arranged in any manner as long as the temperature and humidity of the futon 30 can be detected. The temperature / humidity detection unit 50 includes a temperature detection unit 51 and a humidity detection unit 52.

  The temperature detector 51 detects the temperature of the futon 30 and outputs temperature information indicating the detected temperature to the blower 40. Specifically, the temperature detector 51 is a general-purpose thermometer such as a thermometer using a thermocouple, a resistance thermometer using a thermistor, or a non-contact thermometer using infrared rays.

  The humidity detector 52 detects the humidity (relative humidity) of the futon 30 and outputs humidity information indicating the detected humidity to the blower 40. Specifically, the humidity detector 52 is an electric hygrometer using a semiconductor sensor or the like, but may be another hygrometer.

  The temperature / humidity detection unit 50 described above transmits temperature information and humidity information to the blower device 40 by wired communication, but may transmit temperature information and humidity information to the blower device 40 by wireless communication.

[Biometric information acquisition unit]
The biometric information acquisition unit 53 acquires biometric information of the user 60 who is using the futon 30. In the first embodiment, the biological information acquisition unit 53 is a body motion sensor having an acceleration sensor or a gyro sensor, which is attached to the wrist of the user 60 or the like, and the amount of body motion (the amount of rollover) of the user 60 is determined as the biological information. Get as. For example, the biological information acquisition unit 53 counts a change in acceleration of a predetermined magnitude or more, and treats the count number in a predetermined period as the amount of body movement. The biological information acquired by the biological information acquisition unit 53 is transmitted to the blower device by wireless communication, for example, but may be transmitted by wireless communication.

  The biological information acquisition unit 53 may be a heart rate sensor, a pulse wave sensor, a respiration sensor, a blood pressure sensor, a voice sensor, an electroencephalogram sensor, an electrooculogram sensor, a myoelectric potential sensor, or the like. Hereinafter, sensors other than the body motion sensor will be briefly described.

  The biological information acquisition unit 53 may be a heart rate sensor. The heart rate sensor is, for example, a sensor that is attached to the chest of the user 60 and measures the heart rate of the user 60, but is a simple sensor that is attached to the wrist of the user 60 and measures blood flow with infrared rays. Also good. When the biological information acquisition unit 53 is a heart rate sensor, the biological information acquisition unit 53 acquires the heart rate of the user 60 as biological information.

  The biological information acquisition unit 53 may be a pulse wave sensor. The pulse wave sensor is, for example, a photoelectric pulse wave sensor that includes an LED and a photodetector and measures the pulse wave (pulse rate) of the user 60. The pulse sensor may be a sensor using a camera that captures a change in the green component of the face. When the biological information acquisition unit 53 is a pulse wave sensor, the biological information acquisition unit 53 acquires the pulse wave (pulse rate) of the user 60 as biological information.

  The biological information acquisition unit 53 may be a respiration sensor. For example, the respiration sensor is a sensor that is attached to the chest or abdomen of the user 60 and detects the respiration (respiration rate) of the user 60 based on a pressure change caused by a respiration motion. When the biological information acquisition unit 53 is a respiration sensor, the biological information acquisition unit 53 acquires the respiration rate of the user 60 as biological information.

  The biological information acquisition unit 53 may be a blood pressure sensor. For example, the blood pressure sensor is a sensor that is attached to the arm of the user 60 and measures the blood pressure of the user 60. When the biological information acquisition unit 53 is a blood pressure sensor, the biological information acquisition unit 53 acquires the blood pressure of the user 60 as biological information.

  The biological information acquisition unit 53 may be a voice sensor. The voice sensor is, for example, a sensor having a sound collection unit (microphone), and is a sensor that collects the sleep of the user 60. When the biometric information acquisition unit 53 is a voice sensor, the biometric information acquisition unit 53 acquires the user's 60 sleep (the amount of sleep) as biometric information.

  The biological information acquisition unit 53 may be an electroencephalogram sensor. The electroencephalogram sensor is a sensor that is attached to the head of the user 60 and measures the electroencephalogram of the user 60, for example. When the biological information acquisition unit 53 is an electroencephalogram sensor, the biological information acquisition unit 53 acquires the waveform of the brain wave of the user 60 as biological information.

  The biological information acquisition unit 53 may be an electrooculogram sensor. The electrooculogram sensor is a sensor that measures an electrooculogram that is an electric potential generated between the cornea side and the retina side of the eyeball, for example. The electrooculogram sensor can measure the amount of eye movement based on the electrooculogram. When the biological information acquisition unit 53 is an electrooculogram sensor, the biological information acquisition unit 53 acquires the electrooculogram (amount of eye movement) of the user 60 as biological information.

  The biological information acquisition unit 53 may be a myoelectric potential sensor. The myoelectric potential sensor is, for example, a sensor that has an electrode attached to the surface of the user's 60 skin and measures the myoelectric potential of the user 60 using the electrode. The myoelectric potential sensor can measure the amount of myoelectric activity based on the myoelectric potential. When the biological information acquisition unit 53 is a myoelectric potential sensor, the biological information acquisition unit 53 acquires myoelectric potential (amount of myoelectric activity) of the user 60 as biological information.

  The example of the biological information acquisition unit 53 has been described above. The biological information acquisition unit 53 may include at least one of a body motion sensor, a heart rate sensor, a pulse wave sensor, a respiration sensor, a blood pressure sensor, a voice sensor, an electroencephalogram sensor, an electrooculogram sensor, and a myoelectric potential sensor. The biological information acquisition unit 53 may include a plurality of the above sensors, for example.

  In the first embodiment, the biological information acquisition unit 53 is basically a sensor attached to the user 60, but may be a sensor that performs non-contact sensing on the user 60. For example, the respiration rate, the pulse rate, the heart rate, and the amount of body movement can be acquired by a radio wave sensor that transmits radio waves to the user 60. The radio wave sensor can measure (acquire) the respiration rate and the like without touching the user 60 based on the transmitted radio wave and the reflected wave of the transmitted radio wave. Thus, the biological information acquisition unit 53 may be a radio wave sensor.

[Blower]
The blower 40 is provided on the lower side of the bed main body 20 and sends out air from the plurality of blow holes 21 provided on the upper surface of the bed main body 20. Thereby, the air blower 40 adjusts the temperature and humidity of the futon 30 arranged on the upper surface of the bed main body 20. The blower device 40 includes a blower unit 41, a humidity adjustment unit 42, a determination unit 43, a control unit 44, and a storage unit 45.

  The air blowing unit 41 sends warm air or cool air to the futon 30 through the plurality of air holes 21. Specifically, the air blower 41 includes a fan, a motor for rotating the fan, a heater for adjusting the temperature of the wind sent by the fan, and the like. The blower 41 (the motor and the heater) is controlled by the controller 44.

  The humidity adjustment unit 42 adjusts the humidity of the futon 30 according to the humidity (humidity information) detected by the humidity detection unit 52. In the first embodiment, the humidity adjusting unit 42 indirectly adjusts the humidity of the futon 30 by adjusting the humidity of the wind sent out by the air blowing unit 41 based on the humidity detected by the humidity detecting unit 52. . Specifically, the humidity adjusting unit 42 has a humidifier, and when the humidity detected by the humidity detector 52 approaches the lower limit of a predetermined humidity range, the humidifier is turned on and the air sent from the blower 41 is sent. Humidify. The humidifier is, for example, an ultrasonic humidifier that disperses water as particles by ultrasonic waves, and uses a steam humidifier or a filter containing water that vaporizes and disperses water. A vaporizing humidifier may be used.

  On the other hand, when the humidity detected by the humidity detector 52 approaches the upper limit of the predetermined humidity range, the humidifier is turned off. Thereby, the dry wind is sent from the ventilation part 41 and the fall of the humidity of the futon 30 is achieved. The humidity adjustment unit 42 performs such an operation based on the control of the control unit 44.

  The humidity adjusting unit 42 may include a dehumidifying device that actively dehumidifies the wind sent by the blower unit 41. In this case, when the humidity detected by the humidity detector 52 is higher than the predetermined humidity range, the dehumidifier is turned on. Thereby, the dry wind is sent from the ventilation part 41 and the fall of the humidity of the futon 30 is achieved. As the dehumidifying device, for example, a zeolite type dehumidifying device is employed.

  In the first embodiment, the humidity adjusting unit 42 indirectly adjusts the humidity of the futon 30 using the air blowing function of the air blowing unit 41, but the humidity adjusting unit 42 is provided separately from the air blowing unit 41. The humidity of the futon 30 may be adjusted directly. For example, the humidity adjusting unit 42 may include a fan and a motor that rotates the fan, separately from the air blowing unit 41.

  In the first embodiment, the predetermined humidity range is 40% or more and 60% or less. If it is the environment of such a humidity range, the user 60 can sleep comfortably. Moreover, by adjusting the humidity within such a range, sweating of the user 60 can be suppressed, and the burden on the body due to sweating can be reduced.

  The determination unit 43 determines the sleep state (sleep depth) of the user 60 based on the biological information acquired by the biological information acquisition unit 53. Here, the sleep state determined by the determination unit 43 will be described with reference to FIG. FIG. 5 is a diagram illustrating a sleep state.

  There is a period in the depth of sleep, and humans sleep more or less periodically during sleep. The depth of sleep is classified into, for example, five stages (six stages including the awakening period), and the determination unit 43 sleeps the depth of sleep based on the biological information acquired by the biological information acquisition unit 53. Judge as a state.

  As shown in FIG. 5, when the biological information acquisition unit 53 is a body motion sensor, the determination unit 43 determines that the sleep is shallower as the amount of body motion (the number of turns) of the user 60 increases. When the biological information acquisition unit 53 is a heart rate sensor, the determination unit 43 determines that sleep is shallower as the heart rate of the user 60 increases.

  Further, when the biological information acquisition unit 53 is a pulse wave sensor, the determination unit 43 determines that the sleep is shallower as the pulse rate of the user 60 increases. When the biological information acquisition unit 53 is a respiration sensor, the determination unit 43 determines that sleep is shallower as the respiration rate of the user 60 increases. When the biological information acquisition unit 53 is a blood pressure sensor, the determination unit 43 determines that sleep is shallower as the blood pressure of the user 60 is higher. When the biological information acquisition unit 53 is an audio sensor, the determination unit 43 determines that the sleep is shallower as the user 60 sleeps more.

  When the biological information acquisition unit 53 is an electroencephalogram sensor, the determination unit 43 analyzes an electroencephalogram. Here, when a low-amplitude fast wave is included in the α wave of the brain waves, the determination unit 43 determines that the user 60 is awake. When the α wave is 50% or less of the electroencephalogram and waves of various amplitudes appear in the electroencephalogram but no aneurysm appears (no aneurysm is included), the determination unit 43 determines that the user 60 is REM. It is determined that it is a sleep period. When the α wave is 50% or less of the electroencephalogram and waves having various amplitudes including an aneurysm appear in the electroencephalogram, the determination unit 43 determines that the user 60 is in the sleep period.

  When low-amplitude θ-δ waves appear irregularly in the electroencephalogram, the determination unit 43 determines that the user 60 is in the light sleep period. When the rate of slow waves having a frequency of 2 Hz or less and an amplitude of 75 μV or more is 20% or more and less than 50%, the determination unit 43 determines that the user 60 is in a moderate sleep period. When the slow wave having a frequency of 2 Hz or less and an amplitude of 75 μV or more occupies 50% or more of the electroencephalogram, the determination unit 43 determines that the user 60 is in the deep sleep period.

  When the biological information acquisition unit 53 is an electrooculogram sensor, the determination unit 43 determines that sleep is shallower as the amount of eye movement of the user 60 is larger. When the biological information acquisition unit 53 is a myoelectric potential sensor, the determination unit 43 determines that sleep is shallower as the amount of myoelectric activity of the user 60 is larger.

  Specifically, the determination unit 43 that performs the determination as described above is realized by a processor, a microcomputer, or a dedicated circuit. Note that the determination criterion (for example, the threshold between each stage of body movement amount) of the determination unit 43 as described above is stored in the storage unit 45, and the determination unit 43 receives the determination criterion from the storage unit 45 via the control unit 44. To get.

  In addition, when the biometric information acquisition part 53 has a some sensor, the determination part 43 can determine a sleep state based on the weighted sum of the evaluation value which shows the measured quantity which each sensor measures, for example. When the biological information acquisition unit 53 includes a body motion sensor and a heart rate sensor, the determination unit 43 includes a first evaluation value that is a real number of 0 or more and 1 or less indicating the amount of body motion, and 0 or more and 1 or less indicating the heart rate. The sleep state can be determined according to the weighted sum with the second evaluation value that is a real number. When the first evaluation value indicates that the larger the value is, the greater the amount of body movement is, and when the second evaluation value indicates that the larger the value is, the greater the heart rate is, the determination unit 43 is shallower as the weighting sum is larger. It can be determined that the patient is sleeping. The weight is appropriately set according to the measurement accuracy of the sensor, the correlation with the sleep state, and the like.

  The control part 44 adjusts the temperature of the futon 30 detected by the temperature detection part 51 by controlling the ventilation part 41 according to the sleep state which the determination part 43 determined. The control unit 44 controls, for example, the temperature of the wind sent out by the air blowing unit 41 (the heater is turned on or off) according to the sleep state determined by the determination unit 43. Specifically, the control unit 44 performs the above-described control so that the temperature of the futon 30 decreases within a predetermined temperature range as the sleep state of the user 60 determined by the determination unit 43 is deeper. In the first embodiment, the predetermined temperature range is 32 ° C. or higher and 34 ° C. or lower. By performing the above-described control within such a temperature range, it is possible to give sharpness to a shallow sleep state and a deep sleep state, and it is possible to provide the user 60 with good sleep and good awakening.

  In addition, the control unit 44 controls on / off of the humidity adjusting unit 42 (humidifying device or dehumidifying device). That is, the control unit 44 causes the humidity adjustment unit 42 to adjust the humidity of the wind sent out by the blower unit 41.

  In addition, the control unit 44 selectively executes a first mode operation for performing the above control and a second mode operation for sending the air for drying the futon 30 to the blower unit 41.

  Such switching of the operation mode is performed based on the biological information acquired by the biological information acquisition unit 53, for example. When the biological information acquisition unit 53 can acquire the biological information, the control unit 44 performs the first mode operation assuming that the user 60 is using the futon 30. On the other hand, when the biometric information acquisition unit 53 cannot acquire biometric information, the control unit 44 performs the second mode operation assuming that the user 60 is not using the futon 30.

  Note that the switching of the operation mode is not limited to that based on biological information. The switching of the operation mode may be performed based on, for example, a switching operation of the user 60 with respect to the changeover switch provided in the blower 40 or the bed body 20.

  Specifically, the control unit 44 described above is realized by a processor, a microcomputer, or a dedicated circuit.

  The storage unit 45 is a storage device that stores a control program executed by the control unit 44 and determination criteria used for determination by the determination unit 43. Specifically, the storage unit 45 is realized by a semiconductor memory or the like.

[Operation in the first mode]
Next, the operation of the first mode of the sleep environment control system 10 will be described. FIG. 6 is an example of a flowchart of the operation in the first mode of the sleep environment control system 10.

  In the operation in the first mode, the blower unit 41 sends wind to the futon 30 based on the control of the control unit 44 (S11). The temperature detector 51 detects the temperature (S12), and the humidity detector 52 detects the humidity of the futon 30 (S13).

  The humidity adjusting unit 42 adjusts the humidity of the futon 30 based on the humidity detected by the humidity detecting unit 52 (S14). Specifically, the humidity adjustment unit 42 turns on or off the humidifier according to the control of the control unit 44, and the humidity detected by the humidity detection unit 52 is set to a predetermined humidity range of 40% to 60%. To do.

  For example, when the humidity detected by the humidity detection unit 52 is equal to or lower than a first threshold value (for example, 45%) within the predetermined humidity range, the control unit 44 turns on the humidifier to the humidity adjustment unit 42. Let Thereby, the control unit 44 increases the humidity of the futon 30.

  In addition, for example, when the humidity detected by the humidity detection unit 52 becomes equal to or higher than a second threshold value (for example, 55%) within the predetermined humidity range, the control unit 44 causes the humidity adjustment unit 42 to supply a humidifying device. Turn off. Thereby, the control part 44 aims at the fall of the humidity of the futon 30. FIG.

  In addition, such control is an example, and if the humidity detected by the humidity detection part 52 can be 40% or more and 60% or less which is the predetermined humidity range, Such control may be performed.

  On the other hand, the temperature of the futon 30 is controlled as follows.

  The biometric information acquisition unit 53 acquires biometric information of the user 60 who is using the futon 30 (S15). And the determination part 43 determines the sleep state of the user 60 based on the biometric information which the biometric information acquisition part 53 acquired (S16). As described above, the determination unit 43 determines that the sleep state is shallower as the amount of body movement increases. More specifically, the determination unit 43 performs a five-step determination as to which of the five stages shown in FIG. 5 is the sleep state of the user 60. The determination may be performed in any number of steps, and most simply in two steps.

  Next, the control part 44 controls the ventilation part 41 according to the sleep state which the determination part 43 determined (S17). Specifically, the control unit 44 is configured such that the deeper the sleep state of the user 60 determined by the determination unit 43, the lower the temperature of the futon 30 detected by the temperature detection unit 51 within a predetermined temperature range. The blower 41 is controlled. Thereby, sharpness can be given to a shallow sleep state and a deep sleep state, and a good sleep and good awakening can be provided to the user 60.

  FIG. 7 is a diagram showing a change in ideal temperature of the futon 30 (bed bed temperature) with respect to the sleep state (sleep depth), and FIG. 7A is a diagram showing the sleep state. (B) is a figure which shows the temperature of the futon 30. FIG.

  In order to perform the temperature control as shown in FIG. 7B, it is better to determine the sleep state in detail, but in the first embodiment, the control is performed as follows according to the above-described five-stage determination. I do.

  When it is determined that the REM sleep period, the control unit 44 controls the air blowing unit 41 so that the temperature detected by the temperature detection unit 51 is 33.6 ° C. or higher and 34.0 ° C. or lower. Similarly, the control unit 44 determines that the temperature detected by the temperature detection unit 51 is 33.2 ° C. or more and less than 33.6 ° C. when it is determined that it is a sleep period, and if it is determined that it is a light sleep period, The air blower 41 is controlled so that the temperature detected by the temperature detector 51 is 32.8 ° C. or higher and lower than 33.2 ° C. Moreover, when the control part 44 is determined to be a moderate sleep period, when the temperature which the temperature detection part 51 detects becomes 32.4 degreeC or more and less than 32.8 degreeC, and it determines with the deep sleep period Controls the blower 41 so that the temperature detected by the temperature detector 51 is 32.0 ° C. or higher and lower than 32.4 ° C.

  It should be noted that immediately after the user 60 goes to bed, control may be performed so that the temperature detected by the temperature detection unit 51 is around 34 ° C. This is because the higher the temperature of the futon 30, the better the sleep of the user 60 and the better sleep.

  Specifically, the control unit 44 performs the temperature control as described above by turning on and off the heater of the air blowing unit 41, but may control the temperature of the futon 30 by starting or stopping the air blowing. That is, the control part 44 should just control at least one of a heater and a motor among the ventilation parts 41. FIG.

  As described above, the sleep environment control system 10 adjusts both the humidity and the temperature of the futon 30. Specifically, this makes it possible to provide a comfortable sleep environment for the user 60.

  In particular, when the temperature of the futon 30 is set to the predetermined temperature range (temperature of 32 ° C. or more) in winter, it is assumed that the humidity of the futon 30 is greatly reduced when warm air that is not humidified is blown. For this reason, in order to implement | achieve the said predetermined humidity range (humidity 40% or more), the humidification apparatus (humidification function) which the humidity adjustment part 42 has is useful.

[Operation in second mode]
Next, the operation in the second mode of the sleep environment control system 10 will be described. While the user 60 is not using the futon 30, it is desirable to reduce the humidity as much as possible in order to suppress the growth of mites and molds. FIG. 8 is a diagram showing the relationship between mite growth and temperature and humidity. FIG. 9 is a diagram showing a growth range of wet mold and a growth range of dry mold.

  As shown in FIGS. 8 and 9, ticks and molds grow rapidly in an environment with a humidity of 70% or more. Therefore, in the operation in the second mode, the control unit 44 causes the air blowing unit 41 to send out air for drying the futon 30 (hereinafter also referred to as drying air). Specifically, the control unit 44 causes the humidity adjusting unit 42 to turn off the humidifier and causes the air blowing unit 41 to send out hot air. And the control part 44 controls the ventilation part 41 so that the state which the temperature which the temperature detection part 51 detects becomes 50 degreeC or more, for example is maintained for at least 20 minutes. Thereby, a tick can be killed and generation | occurrence | production of mold | fungi can be suppressed.

  The controller 44 selectively executes the operation in the first mode and the operation in the second mode. For example, if the operation of the second mode is performed while the user 60 is using the futon 30, the user 60 may be adversely affected. Therefore, for example, the operation in the first mode and the operation in the second mode may be selectively performed based on determination of whether or not the user 60 is using the futon 30. The operation in the second mode may be performed under the condition that the humidity detected by the humidity detector 52 is 70% or more, for example. FIG. 10 is an example of a flowchart when the operation in the first mode and the operation in the second mode are selectively executed.

  First, the determination unit 43 determines whether or not the user 60 is using a futon (S21). For example, when the biometric information acquisition unit 53 can appropriately acquire biometric information, the determination unit 43 determines that the user 60 is using the futon 30 and the biometric information acquisition unit 53 sets the biometric information appropriately. If the user 60 has not been acquired, it is determined that the user 60 is not using the futon 30. The case where the biological information acquisition unit 53 cannot acquire the biological information appropriately means that the body movement amount acquired by the biological information acquisition unit 53 is a predetermined period (for example, 30 minutes before the start of determination), For example, the biometric information acquisition unit 53 cannot acquire biometric information.

  When the determination unit 43 determines that the user 60 is using the futon 30 (Yes in S21), the sleep environment control system 10 performs the operation in the first mode (S22).

  On the other hand, when the determination unit 43 determines that the user 60 is not using the futon 30 (No in S21), the determination unit 43 further determines whether or not the humidity detected by the humidity detection unit 52 is 70% or more (S23). .

  When the humidity detected by the humidity detector 52 is 70% or more (Yes in S23), the sleep environment control system 10 performs the operation in the second mode (S24). When the humidity detected by the humidity detector 52 is less than 70% (No in S23), the operation ends.

  In this way, the control unit 44 selectively executes the operation in the first mode and the operation in the second mode.

  In addition, according to the operation | movement of the above 2nd modes, although a tick can be killed, the dead body of a tick remains and may become an allergen. Therefore, it is desirable to suppress the growth of mites and molds.

  For example, when the operation in the first mode is not performed, the humidity of the futon 30 is expected to be highest when the user 60 wakes up. Therefore, the control unit 44 may perform a control for causing the air blowing unit 41 to blow dry air when getting up to shorten the period in which the humidity is 70% or more as much as possible. The control unit 44 can recognize the timing at which the determination unit 43 determines that the user 60 has transitioned from the sleeping state (sleeping period) to the awakening state (wakening period) as the time of waking up. Also in this case, it is better that the control unit 44 performs the operation in the second mode after confirming that the user 60 is not using the futon 30.

  Also, the control is performed when the operation in the first mode is not performed due to rain or the like, and the humidity detected by the humidity detector 52 continues for a period of 70% or more for a predetermined period (for example, 5 hours). The unit 44 may automatically perform the operation in the second mode. Also in this case, it is better that the control unit 44 performs the operation in the second mode after confirming that the user 60 is not using the futon 30.

[Modification]
In the said Embodiment 1, the air blower 40 sent the warm air or the cool breeze from the outer side of the futon 30 to the futon 30, but the air blower may send the hot air or the cool breeze from the inner side of the futon to the said futon. . Moreover, in the said Embodiment 1, the air blower 40 sent the warm air or the cool breeze to the mattress, but the air blower may send the warm air or the cool breeze to the comforter. Hereinafter, a sleep environment control system according to such a modification will be described. FIG. 11 is an external perspective view of a sleep environment control system according to a modification. In addition, in the following modifications, the difference from the sleep environment control system 10 will be described, and description of the content that is substantially the same as that of the sleep environment control system 10 may be omitted.

  The sleep environment control system 110 according to the modification is a system for providing a comfortable sleep environment to a user 60 who uses a futon 130 (comforter) having air permeability.

  The air blowing device 140 included in the sleep environment control system 110 is configured as a separate body from the bed body 20 and includes the air duct 141. One end of the air duct 141 is connected to the air blower 140, and the other end of the air duct 141 is disposed inside the futon 130.

  Thereby, the air blower 140 can send air to the futon 130 from the inside of the futon 130 through the air duct 141. The temperature / humidity detection unit 50 is disposed inside the futon 130.

  Even with such a sleep environment control system 110, the same effect as that of the sleep environment control system 10 can be obtained.

[Effects]
As described above, the sleep environment control system 10 according to the first embodiment includes the air blowing unit 41 that sends warm air or cool breeze to the futon 30, the temperature detecting unit 51 that detects the temperature of the futon 30, and the futon 30. And a humidity detector 52 for detecting humidity. In addition, the sleep environment control system 10 has at least a humidifying function, and a humidity adjusting unit 42 that adjusts the humidity of the futon 30 according to the humidity detected by the humidity detecting unit 52 and a user 60 using the futon 30. And a biological information acquisition unit 53 for acquiring the biological information. The sleep environment control system 10 determines the sleep state of the user 60 based on the biological information acquired by the biological information acquisition unit 53, and controls the blower unit 41 according to the sleep state determined by the determination unit 43. By performing, the control part 44 which adjusts the temperature of the futon 30 detected by the temperature detection part 51 is provided.

  Thereby, the sleep environment control system 10 can provide the user 60 with a sleep environment whose temperature is adjusted according to the sleep state. The futon 30 is an example of bedding.

  In addition, the biological information acquisition unit 53 may include at least one of a body motion sensor, a heart rate sensor, a pulse wave sensor, a respiration sensor, a blood pressure sensor, an audio sensor, an electroencephalogram sensor, an electrooculogram sensor, and a myoelectric potential sensor.

  As a result, the sleep environment control system 10 can determine the sleep state based on at least one of body movement, heart rate, pulse rate, respiratory rate, blood pressure, voice, brain wave, electrooculogram, and myoelectric potential. .

  Moreover, the control part 44 may perform the said control so that the temperature of the futon 30 may become low within a predetermined temperature range, so that the sleep state of the user 60 determined by the determination part 43 is deep.

  Thereby, the sleep environment control system 10 can give sharpness to a shallow sleep state and a deep sleep state, and can provide the user 60 with good sleep and good awakening. The predetermined temperature range is, for example, a temperature range of 32 ° C. or more and 34 ° C. or less as described above, but may be other temperature ranges such as a wider temperature range or a narrower temperature range.

  The humidity adjusting unit 42 adjusts the humidity of the futon 30 so that the humidity detected by the humidity detecting unit 52 is within a predetermined humidity range.

  In this way, by adjusting the humidity within a predetermined humidity range in which the user 60 can sleep comfortably, the sleep environment control system 10 can suppress the sweating of the user 60 and reduce the burden on the body due to the sweating. it can. The predetermined humidity range is a humidity range of 40% to 60% as described above, but may be other humidity ranges such as a wider humidity range or a narrower humidity range.

  In addition, the control unit 44 performs the above-described control in the first mode, and the second mode operation in which the humidifying device (humidification function) is turned off in the humidity adjustment unit 42 and warm air is sent to the blowing unit 41. May be selectively executed.

  Thereby, the user 60 of the sleep environment control system 10 can select the function of controlling the sleep environment and the function of drying the futon.

  The sleep environment control system 10 may further include a futon 30, which may be a comforter or a mattress.

  Thus, the sleep environment control system 10 can be applied to both a mattress and a comforter.

(Other embodiments)
The sleep environment control system 10 (sleep environment control system 110) according to Embodiment 1 has been described above, but the present invention is not limited to the above embodiment.

  For example, in the first embodiment, the futon 30 or the futon 130 (the mattress or the comforter) is used as an example of the bedding, but the present invention is also applicable to other bedding such as a mat or a mattress.

  In the first embodiment, each component (for example, the determination unit 43 and the control unit 44) is configured by dedicated hardware or implemented by executing a software program suitable for each component. May be. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

  The general or specific aspect of the present invention may be realized by a recording medium such as a system, an apparatus, a method, an integrated circuit, a computer program, or a computer-readable CD-ROM. Further, the present invention may be realized by any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium. For example, the present invention may be realized as a sleep environment control method executed by the sleep environment control system, or may be realized as a program for causing a computer to function as a sleep environment control system.

  In addition, the present invention can be realized by various combinations conceived by those skilled in the art for each embodiment, or by arbitrarily combining the components and functions in each embodiment without departing from the spirit of the present invention. This form is also included in the present invention.

10, 110 Sleep environment control system 30, 130 Futon (bedding)
41 Air blower 42 Humidity adjustment unit 43 Judgment unit 44 Control unit 51 Temperature detection unit 52 Humidity detection unit 53 Biometric information acquisition unit 60 User

Claims (6)

A blower that sends warm or cool air to the bedding;
A temperature detector for detecting the temperature of the bedding;
A humidity detector for detecting the humidity of the bedding;
A humidity adjusting unit having at least a humidifying function and adjusting the humidity of the bedding according to the humidity detected by the humidity detecting unit;
A biometric information acquisition unit that acquires biometric information of a user using the bedding;
A determination unit that determines the sleep state of the user based on the biological information acquired by the biological information acquisition unit;
A sleep environment control system comprising: a control unit that adjusts the temperature of the bedding detected by the temperature detection unit by controlling the air blowing unit according to the sleep state determined by the determination unit. The biological information acquisition unit includes at least one of a body motion sensor, a heart rate sensor, a pulse wave sensor, a respiration sensor, a blood pressure sensor, a voice sensor, an electroencephalogram sensor, an electrooculogram sensor, and a myoelectric potential sensor. Sleep environment control system. The sleep environment according to claim 1 or 2, wherein the control unit performs the control such that the deeper the sleep state of the user determined by the determination unit, the lower the temperature of the bedding within a predetermined temperature range. Control system. The sleep environment control system according to any one of claims 1 to 3, wherein the humidity adjustment unit adjusts the humidity of the bedding so that the humidity detected by the humidity detection unit is within a predetermined humidity range. The control unit selectively executes a first mode operation for performing the control and a second mode operation for sending warm air to the air blowing unit in a state where the humidification function is turned off by the humidity adjustment unit. The sleep environment control system according to any one of claims 1 to 4. The sleep environment control system according to any one of claims 1 to 5, further comprising the bedding.

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