JP6906290B2 - Air conditioner - Google Patents

Description

The present invention relates to an air conditioner having at least one of a cooling function and a heating function.

Some people wake up because they go to the bathroom during the night, but the frequency increases due to frequent urination at night, especially in old age. Especially in winter, the temperature difference between the temperature inside the bedding and the room temperature is larger than in summer, so the body may get cold and awaken further, or in severe cases, it may die due to heat shock.

The indoor air conditioning system disclosed in Patent Document 1 determines the sleeping state of the user based on the signal detected by the biometric information detection sensor, and vibrations such as respiration, heartbeat, weight, and body movement detected by the biometric information detection sensor. Based on the pressure signal, it is determined whether or not the user is awake. When the user is awake and the temperature difference between the temperature of the separate room and the set temperature is larger than a certain value, the indoor air conditioning system disclosed in Patent Document 1 is such that the user who awakens after going to bed is in the separate room. Judging that there is a possibility of going to the toilet, which is an example, the temperature of the space in the separate room is raised by operating the separate room air conditioner in order to reduce the temperature difference between the temperature of the separate room and the set temperature.

JP-A-2009-243724

However, the indoor air-conditioning system disclosed in Patent Document 1 suppresses the occurrence of heat shock by adjusting the environment of a separate room, but when the user returns to the bedroom, the body is slightly cold and the bed is in the bed. There is a problem that it becomes difficult to fall asleep because the bed is cold.

The present invention has been made in view of the above, and an object of the present invention is to obtain an air conditioner capable of preparing an environment in which it is easy to fall asleep when awakening during sleep and then falling asleep again.

In order to solve the above-mentioned problems and achieve the object, the air conditioner according to the present invention is installed in a bedding based on a louver that controls the wind direction of the conditioned air, detection of the surface temperature of an object, and human biological information. When the activity state detector that detects whether or not a person is in bed, the temperature / humidity sensor that detects the temperature and humidity in the room, and the sleep / cooling operation are specified, the wake-up is set from the set bedtime. The sleep period, which is the period up to the time, is set between the first period from the bedtime to the first time, the first section in which the first set temperature is set, and the second time after the end of the first section. A third set temperature higher than the second set temperature is set between the second section in which the second set temperature higher than the first set temperature is set and the period from the end of the second section to the wake-up time. A control unit that controls air conditioning using the detected temperature and humidity is provided separately from the third section. Controller running sleep cooling operation, active detection unit, a case of detecting that a person has Deyuka from bedding out the surface temperature of the location where people had the bedding after floor bedding If it is detected that the temperature is higher than the surrounding room temperature and it is determined that the current time is in the first section or the second section, the bedding cooling control that sets the wind direction of the louver to the bedding is performed, and the activity state detection unit performs the bedding cooling control. , When it is detected that a person has left the bedding, it is detected that the surface temperature of the place where the person was in the bedding after getting out is higher than the room temperature around the bedding, and the present time is the third section. If it is determined that the bedding is in, the bedding cooling control is not performed .

According to the present invention, it is possible to prepare an environment in which it is easy to fall asleep when falling asleep again after waking up during sleep.

A block diagram showing a configuration of an air conditioner according to an embodiment of the present invention. Schematic diagram showing an installation example of an air conditioner according to an embodiment of the present invention. The figure which shows an example of the change of the sleep state from the start of sleep to the wake up of a sleeping person shown in FIG. Diagram to illustrate the setting of room temperature during sleep The figure which shows an example of the change of the room temperature when the cooling operation is performed. Flowchart showing processing operation in the control unit The first figure which shows the temperature distribution analyzed by the thermal image data generated by the surface temperature sensor at the time of a cooling sleep operation. The second figure which shows the temperature distribution analyzed by the thermal image data generated by the surface temperature sensor at the time of a cooling sleep operation. Diagram showing changes in bedroom temperature and bed temperature The figure which shows the display example which is displayed in the communication means by the sleep information output from the air conditioner. The figure which showed the transition of the bedroom temperature and the temperature in the bed in the heating operation, respectively.

Hereinafter, the air conditioner according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment.
FIG. 1 is a block diagram showing a configuration of an air conditioner according to an embodiment of the present invention, and FIG. 2 is a schematic diagram showing an installation example of an air conditioner according to an embodiment of the present invention.

As shown in FIG. 1, the air conditioner 1 according to the embodiment includes an indoor unit 2 and an outdoor unit 4 connected to the indoor unit 2 via a refrigerant pipe 3. The air conditioner 1 can perform air conditioning operation including cooling operation and heating operation. As shown in FIG. 2, the indoor unit 2 is installed in the room where the bedding 6 is installed, that is, in the bedroom 7.

The indoor unit 2 includes a temperature / humidity sensor 8 for detecting indoor temperature and humidity, a surface temperature sensor 9, a communication unit 10 for wireless communication, a control unit 11, and a timekeeping unit 12. Note that FIG. 1 omits the illustration of the configuration necessary for realizing the air conditioning operation including the refrigeration cycle.

The temperature / humidity sensor 8 includes a temperature sensor and a humidity sensor. The temperature / humidity sensor 8 is a sensor that periodically detects the temperature and humidity in the bedroom 7 shown in FIG. 2 and outputs a temperature / humidity detection value 8a indicating each value of the temperature and humidity. Hereinafter, the temperature / humidity detection value 8a may be referred to as output data of the temperature / humidity sensor 8.

The surface temperature sensor 9 is configured by using an infrared sensor (not shown). The infrared sensor has a plurality of thermopile (not shown). The surface temperature sensor 9 scans the temperature detection range by rotationally driving the infrared sensor, and generates thermal image data in the temperature detection range using the output of the infrared sensor. That is, the surface temperature sensor 9 periodically detects the surface temperature of the person to be detected in the bedroom 7 shown in FIG. 2 to generate thermal image data in the temperature detection range. The surface temperature sensor 9 stores periodically generated thermal image data in chronological order. Then, the surface temperature sensor 9 determines the activity state of the person existing in the bedroom 7 by comparing the thermal image data stored in the time series order. By determining the activity state, the surface temperature sensor 9 determines the presence or absence of a person in the room, and also determines whether or not the person present in the room is sleeping.

As described above, the surface temperature sensor 9 is a sensor that also serves as a surface temperature detection unit and an activity state detection unit. The determination result by the surface temperature sensor 9 is output to the control unit 11 as the activity state data 9a. Hereinafter, the activity state data 9a may be referred to as the output data of the surface temperature sensor 9. By using the surface temperature sensor 9, the control unit 11 can determine the presence or absence of a person in the room, and the control unit 11 can identify the position of the person and the surface temperature of the person when there is a person in the room. Can be detected.

The communication unit 10 is a transmission / reception device for wireless communication. The communication unit 10 transmits / receives data to / from a communication means such as a remote controller (not shown), a smart phone (not shown), or a HEMS (Home Energy Management System) (not shown).

The timekeeping unit 12 is a real-time clock and outputs timekeeping information to the control unit 11. Timekeeping information is information representing months, days, hours, minutes and seconds.

The control unit 11 is connected to the temperature / humidity sensor 8, the surface temperature sensor 9, and the communication unit 10, and is air-conditioned based on the setting information of the air conditioner 1, the output data of the temperature / humidity sensor 8, and the output data of the surface temperature sensor 9. Performs various controls including operation control. Specific examples of the setting information of the air conditioner 1 will be described later.

The control unit 11 includes a calculation unit 11a that executes calculations necessary for various controls, and a storage unit 11b that stores data used for calculations in the calculation unit 11a. The control unit 11 is a control circuit and is realized by a microcomputer. That is, the arithmetic unit 11a is a processor, and the storage unit 11b is a memory. The memory is a non-volatile or volatile semiconductor memory such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EEPROM (Erasable Programmable Read Only Memory), or EEPROM (Electrically Erasable Programmable Read-Only Memory). It is composed. The setting information of the air conditioner 1, the output data of the temperature / humidity sensor 8 and the output data of the surface temperature sensor 9 are stored in the memory.

The processor is composed of a CPU (Central Processing Unit), a central processing unit, a processing device, a computing device, a microprocessor, a microcomputer, a processor, a DSP (Digital Signal Processor), or a system LSI (Large Scale Integration). The processor executes the program stored in the memory and executes the control method described in the program.

FIG. 2 shows a bedding 6 such as a bed or a futon for the sleeping person 20 to sleep, an indoor unit 2, a refrigerant pipe 3, an outdoor unit 4, and a room lighting 15. The bedding 6 is installed on the floor surface 70 of the bedroom 7. The indoor unit 2 is installed at a position closer to the ceiling surface 72 on the side wall surface 71 in the bedroom 7. The outdoor unit 4 is installed at a position closer to the floor surface 70 on the side wall surface 71 outside the bedroom 7. The room lighting 15 is indoor lighting installed on the ceiling surface 72 in the bedroom 7, and includes a lighting communication unit 16.

Lighting 13 is provided on the side surface of the indoor unit 2. The lighting 13 is a light source such as a nightlight and a footlight that has low illuminance and can be used even during sleep so as not to interfere with the sleep of the sleeping person 20.

Next, the sleeping state of the sleeping person 20 will be described. FIG. 3 is a diagram showing an example of changes in the sleep state from when the sleeping person shown in FIG. 2 starts sleeping to when he / she wakes up. The horizontal axis represents time. Specifically, FIG. 3 shows changes in the sleeping state of the sleeping person 20, changes in the core body temperature 30 in the body of the sleeping person 20, and changes in the body movements of the sleeping person 20. Sleep status is indicated by a solid stepped line. That is, the solid line indicates whether the sleeping person 20 is in the awake state or the non-wakeful state, and the lower the position of the solid line, the deeper the sleep state. The core body temperature 30 is shown by a dotted line, and the rectal body temperature is typical as the core body temperature 30. The body movement is indicated by a bar, and the height of the bar indicating the body movement indicates the relative magnitude of the body movement.

In general, sleep is roughly classified into light sleep REM (Rapid Eye Movement) sleep and deep sleep non-REM sleep. The apex portion of the stepped solid line indicates that the sleeping person 20 is in the REM sleep state. The part other than the apex of the stepped solid line represents the state of non-REM sleep.

During REM sleep, organs and organs are actively active, especially the eyeballs move at high speed, resulting in increased pulsation, increased blood pressure and increased sweating. During non-REM sleep, the body becomes relaxed and relaxed, resulting in decreased pulsation, decreased blood pressure, and decreased sweating.

Non-REM sleep is classified into "sleep depth 1", "sleep depth 2", "sleep depth 3" and "sleep depth 4" in the order of light sleep. In the following, sleep with "sleep depths 1 and 2" will be referred to as "light sleep", and sleep with "sleep depths 3 and 4" will be referred to as "deep sleep".

The sleep state after going to bed shifts so that the sleep becomes deeper in the order of "sleep depth 1", "sleep depth 2", "sleep depth 3", and "sleep depth 4", and then "sleep depth 3", "sleep depth 3", "sleep depth 4". The transition is made so that the sleep becomes lighter in the order of "sleep depth 2", "sleep depth 1", and REM sleep. After that, non-REM sleep and REM sleep are alternately repeated. The cycle of such a sleep cycle, that is, the human sleep cycle, is usually about 90 minutes.

In addition, changes in sleep status are associated with changes in core body temperature 30 that are governed by circadian rhythms. The human core body temperature 30 decreases after the onset of sleep to promote sleep, then reaches the minimum temperature, and then starts to increase. In FIG. 3, the core body temperature 30 rises once immediately before the start of sleep, then gradually falls as the sleep state becomes deeper, and the sleep state rises during the transition period from “sleep depth 4” to “sleep depth 3”. It turns, and then gradually rises toward awakening.

In general, sleep is deep in the first half of sleep, and the sense of change in the thermal environment of the indoor space is dull, while the thermoregulatory function works. Therefore, it is unlikely that awakening will occur due to an external stimulus such as air flow or temperature and humidity. On the other hand, in the latter half of sleep, the sleep becomes lighter, the "sleep depths 3 and 4" are less likely to occur, and it becomes easier to respond to external stimuli.

Also, the frequency of body movements is related to sleep status. In general, the frequency of body movements during deep sleep and REM sleep is low, and the frequency of body movements during light sleep is high.

As described above, since the change in the sleep state is related to the change in the core body temperature 30, in general, in order to provide the sleeping person 20 with a comfortable sleeping environment, the indoor temperature during sleep is set to the core body temperature 30. It is good to set it to promote change.

Specifically, at the start of sleep, it is preferable to lower the indoor temperature than the temperature at which the user feels comfortable, promote heat dissipation, and lower the deep temperature. This makes it possible to promote sleep. After that, it is better to raise the temperature in the room more than at the beginning of sleep. As a result, chilling is suppressed, and temperature stimulation is suppressed especially during cooling operation. Further, before waking up, the temperature in the room is maintained or further raised to promote the rise in the deep temperature.

Therefore, the air conditioner 1 according to the present embodiment divides the sleep period, which is the period from the bedtime determined by the setting to the wake-up time determined by the setting, into three sections, and controls the air conditioning for each of the divided sections. conduct. The sleep period is a period in which a sleep operation mode different from the normal cooling operation mode or heating operation mode is performed.

FIG. 4 is a diagram for explaining the setting of the room temperature during the sleep period. FIG. 5 is a diagram showing an example of a change in room temperature when a cooling operation is performed. As shown in FIG. 4, the sleep period is divided into three sections, a first section, a second section, and a third section. The first section corresponds to a period from bedtime t ₁₁ to time t ₁₂ at which the duration u ₁ has elapsed. The second section corresponds to a during a period from the time t ₁₂ to time t ₁₃ at which a predetermined time has elapsed. Third section corresponds to a period from time t ₁₃ to the wake-up time t ₁₄ at which the duration u ₂ has elapsed.

In the case of cooling operation in summer, the recommended example of the setting information of the air conditioner 1 is as follows.

3 hours is recommended for the duration u ₁ of the first section, and 27 ° C. is recommended for _{the set temperature T 1 of the first section.} In the summer, the sleeping person 20 can fall asleep deeply by promoting heat dissipation 3 hours after falling asleep.

The set temperature T ₂ in the second section is higher than the set temperature T _{1 in the first section.} Further, it is recommended that the temperature difference between the set temperature T ₂ in the second section and the set temperature T _{1 in} the first section be 0.5 ° C. or higher and 1 ° C. or lower. By setting the set temperature T ₂ higher than the set temperature T ₁ , chilling is suppressed.

30 minutes is recommended for the _{duration u 2} of the third section. It is recommended that the set temperature T ₃ in the third section be the same as the set temperature T _{2 in the second section.} Further, the set temperature T ₃ in the third section is higher than the set temperature T _{2 in} the second section, and the _{temperature between the set temperature T 3 in the third section and the set temperature T 2 in the second section.} It is recommended that the difference be 1 ° C or less. This is to prevent the sleeping person 20 from becoming sleepy and to improve the awakening of the sleeping person 20.

In FIG. 5, In such first section an example of a change in room temperature 40 in the case of performing cooling operation is indicated by the solid line, the room temperature 40 descends while the predetermined time has elapsed from the sleep time point t _11, After that, the room temperature 40 is maintained at the _{set temperature T 1 until the time t 12.} In the second section, the room temperature 40 increases from the time t ₁₂ during the predetermined time has elapsed, then, at room temperature 40 to time t ₁₃ is maintained at the set temperature T _2. In the third section, room 40 is slightly increased during the predetermined time has elapsed from the time t _13, then, at room temperature 40 to wake-up time t ₁₄ is maintained at the set temperature T _3.

In the case of heating operation in winter, the recommended example of the setting information of the air conditioner 1 is as follows. 30 minutes is recommended for the duration u ₁ of the first section, and 17 ° C. is recommended for _{the set temperature T 1 of the first section.} In winter, it is sufficient to warm the room in the early stage of sleep, and warming the room for a long time suppresses heat dissipation, which is counterproductive from the viewpoint that the sleeping person 20 obtains a deep sleep.

Next, the operation of the air conditioner 1 will be described with reference to FIGS. 6, 7 and 8.

FIG. 6 is a flowchart showing a processing operation in the control unit. FIG. 7 is a first diagram showing the temperature distribution analyzed by the thermal image data generated by the surface temperature sensor during the cooling sleep operation. FIG. 8 is a second diagram showing the temperature distribution analyzed by the thermal image data generated by the surface temperature sensor during the cooling sleep operation. FIG. 9 is a diagram showing changes in the bedroom temperature and the bed temperature, respectively.

As shown in FIG. 7, if the sleeping person 20 sleeping on the bedding 6 is wearing a comforter or a blanket, the temperature of the sleeping person 20's face is around 35 ° C., and the temperature around the sleeping person 20 is room temperature. Since the temperature is about 28 ° C., which is the same, the surface temperature sensor 9 can identify the presence of the sleeping person 20 in the bedroom 7 by specifying the position higher than the room temperature.

FIG. 8 shows a state after the sleeping person 20 shown in FIG. 7 has moved away from the bedding 6 and moved to another room. That is, when the bedding 6 is viewed in a plan view from the vertical direction, the center of the bedding 6 becomes a high temperature portion 60 having a temperature higher than the temperature other than the center of the bedding 6 due to the body temperature of the sleeping person 20. The temperature of the high temperature section 60 is around 33 ° C. The surface temperature sensor 9 can identify that the sleeping person 20 is moving out of the bedroom 7 by identifying the position of the temperature lower than the face temperature and higher than the room temperature, and the bedding. The temperature of the high temperature part 60 of 6 can be specified.

The horizontal axis of FIG. 9 represents time, and the vertical axis represents temperature. FIG. 9 shows a room temperature 41, a surface temperature 42 at the center of the mattress during the cooling operation, and a surface temperature 43 at the center of the mattress during the non-cooling operation. The central portion of the mattress is the high temperature portion 60 shown in FIG. 8, that is, the central portion of the bedding 6 when the bedding 6 is viewed in a plan view from the vertical direction. The high temperature portion 60 corresponds to the head and body portions of the sleeping person 20 shown in FIG. 7.

In FIG. 6, when the user presses the operation button provided on the communication means described above, the air conditioner 1 starts the sleep operation in S1. Here, it is assumed that the air conditioner 1 starts the sleep cooling operation assuming the summer.

When the sleep cooling operation is started in S1 and the control unit 11 detects the command to start the operation, the surface temperature sensor 9 detects the surface temperature of the user in S2 to specify the position of the user. When specifying the position of the user, the position of the user can be specified by detecting the temperature and room temperature of the face of the sleeping person 20 who is the user wearing a comforter or blanket as shown in FIG.

Next, in S3, the surface temperature sensor 9 determines whether the sleeping person 20 is in a sleeping state or a non-sleeping state. Specifically, the surface temperature sensor 9 stores thermal image data at regular time intervals, and calculates whether or not the sleeping person 20 has moved within a fixed time based on the difference. The surface temperature sensor 9 determines whether the body is in a sleeping state or a non-sleeping state by determining the frequency and magnitude of body movement. When the surface temperature sensor 9 determines that it is in a non-sleep state (S3, No), the sleep determination is repeated, and when it is determined that it is in a sleep state (S3, Yes), the process of S4 is performed.

Here, the body movement was determined by the surface temperature detected by the surface temperature sensor 9, but instead of the surface temperature sensor 9, a Doppler sensor capable of measuring the moving body in a non-contact manner was used to breathe and breathe the sleeping person 20. The heartbeat may be measured, or the body motion may be measured using an acceleration sensor directly attached to the body or installed on the bedding 6 instead of the surface temperature sensor 9, or instead of the surface temperature sensor 9. In addition, the body movement may be measured using a pressure sensor mounted under the bedding 6.

Next, in S4, the surface temperature sensor 9 transmits sleep onset information indicating that the user has fallen asleep to an arbitrary communication means through the communication unit 10. The communication means may be a smartphone email or a HEMS system. If the sleeping person 20 is an elderly person living alone, he / she can tell the child of the elderly person that he / she has slept for safety confirmation. If the sleeping person 20 is one child in the room, it can be confirmed whether the child has fallen asleep properly without staying up late.

Next, in S5, the surface temperature sensor 9 determines whether or not the sleeping person 20 in the bedding 6 has awakened and exited, that is, whether or not the sleeping person 20 is present or absent in the bedding 6. When the sleeping person 20 awakens in the middle of the night and heads for the toilet, the comforter is opened, the inside of the bedding 6 is warmed by the body temperature as shown in FIG. The temperature rises. In such a state, when the sleeping person 20 returns to the bedding 6, the body of the sleeping person 20 is hotter and the room temperature is higher in the summer than in the winter, so if the futon is too hot, he / she will fall asleep again at bedtime. It becomes difficult.

When the sleeping person 20 is absent from the bedding 6 (S5, No), the surface temperature sensor 9 outputs a signal indicating that the sleeping person 20 is absent from the bedding 6 as activity state data 9a. Upon receiving the activity state data 9a, the control unit 11 outputs a lighting activation signal to the lighting communication unit 16 to turn on the room lighting 15, that is, to turn on the room lighting 15 (S6). As a result, the room lighting 15 is turned on, and when the awakened sleeping person 20 leaves the bedroom 7, safety can be ensured by the light of the room lighting 15. The air conditioner 1 may be configured to turn on the lighting 13 of the indoor unit 2 instead of the room lighting 15. At that time, the illuminance of the lighting 13 is adjusted to be 40 Lx or less at the bedside of the sleeping person 20. That is, the illuminance of the illumination 13 is set to a brightness that does not promote arousal.

Next, in S7, the control unit 11 determines whether or not the bedding temperature exceeds the preset detection temperature. In the present embodiment, the detection temperature is 30 ° C., but the detection temperature may be other than 30 ° C. as long as it is higher than the room temperature around the bedding 6. When the bedding temperature exceeds 30 ° C. (S7, Yes), the control unit 11 performs the process of S8, and when the bedding temperature is 30 ° C. or less (S7, No), the control unit 11 performs the process of S10.

In S8, the control unit 11 determines whether or not the sleep progress is in the third section, that is, whether or not the time is close to the time when the person wakes up or the time when the person wakes up. When the sleep progress is in the third section (S8, Yes), the control unit 11 processes S10, and when the sleep progress is not in the third section (S8, No), the control unit 11 processes S9. conduct.

In S9, the control unit 11 cools the bedding 6 by setting the wind direction of the louver (not shown) provided in the air conditioner 1 in the direction of the bedding 6, and when the sleeper 20 returns to the bedding 6, it is easy to fall asleep. Prepare the environment.

When the bedding temperature is 30 ° C. or lower and the sleep progress is in the third section, if the bedding 6 is too cold, it interferes with sleep. Therefore, in S10, the control unit 11 does not cool the bedding 6 and outputs sleep information. It is transmitted to an arbitrary third party through the communication unit 10. This is because the third section is for the stage of raising the body temperature toward getting up. The temperature of the bedding can be further cooled or modest depending on the preference of the user.

Next, in S11, the surface temperature sensor 9 determines whether the sleeping person 20 is present or absent from the bedding 6. When the sleeping person 20 is absent from the bedding 6 (S11, No), in S12, the control unit 11 determines whether or not the sleeping person 20 is absent for more than 15 minutes. If the sleeper 20 is absent for more than 15 minutes (S12, Yes), the sleeper 20 is absent for more than 15 minutes, the sleeper 20 is lying down in the toilet, or the route to the toilet is injured. Since it can be assumed that the user cannot move, the control unit 11 transmits emergency information to an arbitrary third party in S13. This makes it possible to inform the family of the abnormality of the sleeping person 20. The absence time may be configured so that the user or family can arbitrarily set it.

When the absentee time of the sleeping person 20 is 15 minutes or less (S12, No), the process of S6 is executed. When the sleeping person 20 is present in the bedding 6 (S11, Yes), the control unit 11 stops the cooling operation of the air conditioner 1 in S14. Further, in S15, the control unit 11 turns off the room lighting 15.

When the sleeping person 20 is present in the bedding 6 in S5 (S5, Yes) and after S15, the surface temperature sensor 9 performs the processing of S16. In S16, the surface temperature sensor 9 proceeds to S18 when it is determined to be in a non-sleep state, that is, to wake up (S16, Yes), and proceeds to S17 when it is not determined to wake up (S16, No).

Next, if the stop SW is pressed by a communication means (not shown) in S17 (S17, Yes), the process proceeds to S18, and if the stop SW is not pressed (S17, No), the process returns to S5.

In S18, the control unit 11 ends the cooling operation of the air conditioner 1, proceeds to S19, and transmits sleep information indicating the sleep state of the user to an arbitrary communication means through the communication unit 10. FIG. 10 is a diagram showing a display example displayed on the communication means by the sleep information output from the air conditioner 1. In the display example shown in FIG. 10, the horizontal axis represents time and the vertical axis represents temperature. In the display example shown in FIG. 10, the transition of the set temperature of the air conditioner and the transition of the body temperature of the sleeping person 20 detected by the surface temperature sensor 9 are shown. By transmitting such sleep information, the family can confirm the state of the sleeping person 20, and can grasp the health state of the elderly person or the child who is the sleeping person 20.

According to the air conditioner 1 according to the present embodiment, even after going to the toilet in the middle of the night and returning, it is possible to quickly fall asleep again without increasing awakening. In addition, since air conditioning is controlled according to the stage of sleep, the internal rhythm for getting up is not disturbed. Further, when an abnormality occurs in the sleeping person 20, information can be notified to the family of the sleeping person 20, so that accidental death or sudden death of the elderly can be prevented. For children, getting a good night's sleep can help them grow.

Although the cooling operation has been described in the present embodiment, the same effect can be obtained in the heating operation. FIG. 11 is a diagram showing changes in the bedroom temperature and the bed temperature in the heating operation. The horizontal axis of FIG. 11 represents time, and the vertical axis represents temperature. FIG. 11 shows a room temperature 41, a surface temperature 42 at the center of the mattress during the heating operation, and a surface temperature 43 at the center of the mattress during the non-heating operation. In winter, the ambient temperature of the bedding 6 is lower than that in summer, for example, around 10 ° C. Therefore, as shown in FIG. 11, when the futon is released, the temperature inside the bed is detected, but the inside of the bedding 6 cools down at once. Therefore, the control unit 11 maintains the temperature inside the bedding 6 at around 33 ° C. by setting the wind direction of the louver (not shown) provided in the air conditioner 1 in the direction of the bedding 6. As a result, when the sleeping person 20 returns to the bedding 6, the environment is prepared so that it is easy to fall asleep.

The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

1 Air conditioner, 2 Indoor unit, 3 Refrigerant piping, 4 Outdoor unit, 6 Bedding, 7 Bedroom, 8 Temperature / humidity sensor, 8a Temperature / humidity detection value, 9 Surface temperature sensor, 9a Activity status data, 10 Communication unit, 11 Control Unit, 11a arithmetic unit, 11b storage unit, 12 time counting unit, 13 lighting, 15 room lighting, 16 lighting communication unit, 20 sleeping person, 30 core body temperature, 40, 41 room temperature, 42, 43 surface temperature, 60 high temperature part, 70 Floor surface, 71 side wall surface, 72 ceiling surface.

Claims (9)

A louver that controls the wind direction of conditioned air,
An activity state detector that detects whether or not a person is in the bedding based on the detection of the surface temperature of the object and the biological information of the person.
A temperature / humidity sensor that detects indoor temperature and humidity,
When the sleep cooling operation is specified, the first set temperature is set for the sleep period, which is the period from the set bedtime to the set wake-up time, during the first time from the bedtime. The first section, the second section in which the second set temperature higher than the first set temperature is set during the second time from the end of the first section, and the second section. From the end to the wake-up time, air conditioning using the detected temperature and humidity is divided into a third section in which a third set temperature higher than the second set temperature is set. Equipped with a control unit for control
The control unit during the sleep cooling operation
Before SL active detection unit, a case where people from the bedding is detected to Deyuka, the surface temperature of the location where the human in the bedding after leaving bed had a higher than room temperature near the bedding When this is detected and it is determined that the current time is in the first section or the second section, bedding cooling control for setting the wind direction of the louver to the bedding is performed.
When the activity state detecting unit detects that a person has come out of the bedding, the surface temperature of the place where the person was in the bedding after getting out is higher than the room temperature around the bedding. An air conditioner that does not perform the bedding cooling control when it is detected and it is determined that the current time is in the third section. The air according to claim 1, wherein when the activity state detecting unit detects that a person has entered the bedding after the bedding cooling control is performed, the control unit stops the bedding cooling control. Harmony machine. If the activity state detection unit does not detect that a person has entered the bedding for the first time or more after the bedding cooling control is performed, the control unit transmits emergency information according to claim 1. The described air conditioner. The air conditioner according to any one of claims 1 to 3 , wherein when the activity state detecting unit detects that a person has left the bedding, the control unit turns on the lighting. The air conditioner according to claim 4, wherein the lighting is provided in the indoor unit of the air conditioner. The air conditioner according to claim 4 or 5 , wherein the illuminance at the time of turning on the lighting is 40 Lx or less at the bedside of a person. According to any one of claims 1 to 6 , when the activity state detection unit determines that the person who has entered the bedding is in a sleeping state, the result of this determination is transmitted to an external device of the air conditioner. The described air conditioner. The air according to any one of claims 1 to 7 , wherein when the activity state detection unit detects a person who has woken up, the sleep state of the person overnight is transmitted to an external device of the air conditioner. Harmony machine. Upon detection of a person in which the active detection unit got up, according to information indicating the floor number out overnight human claims 1 to be transmitted to the external device of the air conditioner in any one of claims 8 Air conditioner.

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