WO2020217933A1 - 空調システム - Google Patents

空調システム Download PDF

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Publication number
WO2020217933A1
WO2020217933A1 PCT/JP2020/015361 JP2020015361W WO2020217933A1 WO 2020217933 A1 WO2020217933 A1 WO 2020217933A1 JP 2020015361 W JP2020015361 W JP 2020015361W WO 2020217933 A1 WO2020217933 A1 WO 2020217933A1
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WO
WIPO (PCT)
Prior art keywords
temperature
humidity
control unit
target
conditioning system
Prior art date
Application number
PCT/JP2020/015361
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English (en)
French (fr)
Japanese (ja)
Inventor
詩織 繪本
淳 西野
橋本　哲
Original Assignee
ダイキン工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Priority to EP20794250.9A priority Critical patent/EP3933285B1/en
Priority to SG11202110604TA priority patent/SG11202110604TA/en
Priority to CN202080028362.5A priority patent/CN113677937B/zh
Publication of WO2020217933A1 publication Critical patent/WO2020217933A1/ja
Priority to US17/500,476 priority patent/US20220042710A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F24F2110/22—Humidity of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F24F2120/14—Activity of occupants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/20—Feedback from users

Definitions

  • This disclosure relates to an air conditioning system.
  • Patent Document 1 describes a heat exchanger that exchanges heat between radiated air and heat-absorbed air, a humidity medium that absorbs moisture from the radiated air and releases it to the heat-absorbed air, a dehumidifying means that regenerates the humidity medium, and a dehumidifying means.
  • An air conditioner including a heat supply means for supplying heat for regenerating a humidity medium is disclosed.
  • the purpose of this disclosure is to provide an air conditioning system that can further maintain comfort.
  • the first aspect of the present disclosure is a temperature control unit (11) that regulates the temperature in the room, a humidity control unit (12) that controls the humidity in the room, and a humidity control unit (12) that adjusts the temperature in the room to a target temperature and the humidity in the room.
  • the target is an air conditioning system equipped with a temperature control unit (11) and a control unit (13) that controls the humidity control unit (12) so that the humidity approaches the target humidity.
  • the control unit (13) is a resident (40). It is configured to execute the first mode of changing the target temperature and the target humidity so as to suppress the decrease in the sensible temperature.
  • the target temperature and the target humidity are controlled in consideration of the sensible temperature of the occupant (40), so that the comfort can be further maintained.
  • a second aspect of the present disclosure is the first operation in which the control unit (13) raises the target humidity in one step or multiple steps while maintaining the target temperature in the first mode.
  • the second operation of raising the target temperature and lowering the target humidity is executed at least once in order.
  • the target temperature and the target humidity by changing both the target temperature and the target humidity, it is possible to maintain the sensible temperature of the occupant (40) more precisely than in the case of changing only the target temperature.
  • the target humidity at the start of the first mode is determined so that the skin moisture content of the occupant (40) is in an appropriate range. It is set within a predetermined range.
  • the third aspect it is possible to prevent the occupants from feeling itching, stickiness, etc. of the skin.
  • the generation of mold in the room can be suppressed.
  • control unit (13) has an estimation unit that estimates the comfortable temperature in the room that the occupant (40) feels comfortable with.
  • the target temperature is a comfortable temperature estimated by the estimation unit (31).
  • a comfortable room temperature for the occupant (40) can be estimated and controlled.
  • the target temperature can be set by using the outside air temperature and the related information (33).
  • the estimation unit (31) contains environmental information including at least one of indoor temperature, indoor humidity, indoor illuminance, outdoor temperature, and outdoor humidity.
  • the comfortable temperature is estimated by a learning model generated based on the parameters related to and the parameters related to the feeling of warmth and coldness of the occupant (40).
  • the target temperature can be set using the learning model.
  • An eighth aspect of the present disclosure is, in any one of the first to seventh aspects, a ventilation unit (14) that ventilates the indoor air and a carbon dioxide concentration detection unit (23) that detects the carbon dioxide concentration in the room. ), And the control unit (13) operates the ventilation unit (14) when the carbon dioxide concentration detected by the carbon dioxide concentration detection unit exceeds a predetermined value.
  • the carbon dioxide concentration in the room can be controlled.
  • a ninth aspect of the present disclosure includes a controller (15) having a function of starting a first mode in any one of the first to eighth aspects described above.
  • the controller (15) can be used to start the first mode.
  • a tenth aspect of the present disclosure comprises an activity detection unit (24) for detecting the amount of activity of a resident (40) in a room in any one of the first to ninth aspects described above.
  • the control unit (13) starts the first mode.
  • the first mode can be automatically started in a situation where it is determined that the start of the first mode is desirable.
  • the eleventh aspect of the present disclosure comprises an activity detection unit (24) for detecting the amount of activity of a resident (40) in a room in any one of the first to ninth aspects, and the first mode is set.
  • the control unit (13) stops the first mode. Is.
  • the first mode can be automatically stopped in a situation where it is determined that the stop of the first mode is desirable.
  • FIG. 1 is a diagram schematically showing the configuration of the air conditioning system of the present disclosure.
  • FIG. 2 is a block diagram showing a control unit of the air conditioning system of the present disclosure and components related to the control unit.
  • FIG. 3 is a flowchart illustrating the operation of the air conditioning system of the present disclosure.
  • FIG. 4 is a diagram showing an example of indoor temperature and humidity control performed by the air conditioning system of the present disclosure.
  • FIG. 5 is a diagram illustrating a method of determining a target humidity in the air conditioning system of the present disclosure.
  • FIG. 6 is a diagram illustrating an example of a method of determining a comfortable temperature set as a target temperature in the air conditioning system of the present disclosure.
  • FIG. 7 is a diagram illustrating an example of a method of determining a comfortable temperature set as a target temperature in the air conditioning system of the present disclosure.
  • the exemplary air conditioning system of this embodiment has the configuration schematically shown in FIG.
  • the air conditioning system of the present embodiment includes an air conditioner (10) having a temperature control unit (11) for adjusting the temperature in the room and a humidity control unit (12) for adjusting the humidity in the room.
  • the air conditioner (10) further controls the temperature control unit (11) and the humidity control unit (12) so that the indoor temperature approaches the target temperature and the indoor humidity approaches the target humidity (12). 13).
  • the control unit (13) is configured to execute the first mode of changing the target temperature and the target humidity so as to suppress the decrease in the sensible temperature of the occupant (40).
  • a controller (15) for operating the air conditioning system and a ventilation unit (14) for ventilating the air in the room.
  • sensors that detect indoor environmental information
  • an indoor temperature sensor (21) that detects temperature an indoor humidity sensor (22) that detects humidity, and a CO 2 concentration sensor (23) that detects carbon dioxide concentration.
  • an activity sensor for detecting the amount of activity of the occupant (40) is provided.
  • sensors for detecting outdoor environmental information an outdoor temperature sensor (26) for detecting temperature and an outdoor humidity sensor (27) for detecting humidity are provided.
  • a sensor for detecting illuminance may be further provided.
  • each of the above sensors is connected to the air conditioner (10) and its control unit (13) wirelessly or by wire.
  • each sensor is shown individually in FIG. 1, some of the sensors may be combined as one unit. Further, at least one sensor may be combined with the controller (15), may be provided with the air conditioner (10), or may be provided with the ventilation unit (14).
  • the temperature control unit (11) may use, for example, a heat pump type refrigerating apparatus that performs a vapor compression refrigerating cycle. That is, although not shown, a refrigerant circuit or the like in which the refrigerant circulates and performs a refrigeration cycle may be provided.
  • the humidity control unit (12) may be configured to control the humidity in the room by using a solid hygroscopic agent (not shown). Further, the humidity in the room may be adjusted by absorbing moisture from the air in one of the indoor and outdoor areas and releasing it to the other. Further, the humidity control unit (12) is configured to individually use an ultrasonic type, an evaporation type, etc. humidifier and an adsorbent type, etc.
  • dehumidifier instead of being provided in the air conditioner (10). There may be. Only one function of humidifying and dehumidifying the room is provided in the air conditioner (10), and the other can be provided as a separate device. When a humidifier / dehumidifier is used separately from the air conditioner (10), the humidifier / dehumidifier is also connected to the control unit (13) wirelessly or by wire.
  • the ventilation unit (14) may be configured to include a ventilation fan provided in an opening such as a ceiling or a wall surface of the room, and if necessary, an air passage, a damper, or the like (not shown).
  • FIG. 2 is a block diagram showing a control unit (13) in the air conditioning system of the present embodiment and components related thereto.
  • the indoor temperature sensor (21), the indoor humidity sensor (22), the CO 2 concentration sensor (23), the activity sensor (24), the outdoor temperature sensor (26) and the outdoor Detected values and the like are input from the humidity sensor (27).
  • a signal for operating the air conditioning system is input from the controller (15).
  • the control unit (13) which will be described in detail later, includes an estimation unit (31) and a storage unit (32) that stores model information (33).
  • the control unit (13) is based on the input from each of the above sensors and the controller (15), and uses the model information (33) stored in the estimation unit (31) and the storage unit (32) to obtain the temperature. It controls the control unit (11), humidity control unit (12) and ventilation unit (14). Further, as will be described later, the control unit (13) may be connected to an external server to send and receive information related to the control of the air conditioning system.
  • FIG. 3 is a flowchart showing an example of an operation method
  • FIG. 4 is a diagram showing an example of control contents by an air conditioning system.
  • the first mode is an operation mode that suppresses a decrease in the sensible temperature of the occupant (40).
  • the contents of this mode and the operations performed in each of the following steps will be described in detail later.
  • step S1 the first mode is started. This may be started by the occupant (40) instructing the start using the controller (15). Further, the activity sensor (24) may detect the activity state of the occupant (40), and the activity may be started when the activity amount of the occupant (40) is small. When the user returns home and enters the room, it may start after taking a bath.
  • each sensor is used to detect indoor environmental conditions.
  • the indoor temperature sensor (21) and the indoor humidity sensor (22) are used to detect the indoor temperature and humidity.
  • step S3 the target temperature is set for the indoor temperature. This is the target temperature for the control unit (13) to control and approach the temperature control unit (11), and is determined in consideration of the comfort of the occupant (40).
  • step S4 it is determined whether or not the indoor humidity satisfies a predetermined condition.
  • the conditions will also be determined in consideration of the comfort of the occupants (40).
  • step S4 If it is determined in step S4 that the humidity condition is satisfied, the process proceeds to step 6 and the indoor humidity is set as the target humidity.
  • step 7 After setting the target humidity in step 5 or step 6, the process proceeds to step 7 to control the environmental conditions including the room temperature and the room humidity.
  • control is generally performed to maintain a set temperature (air temperature). This is based on the assumption that if a temperature comfortable for the occupants is set, the comfortable state for the occupants will be maintained by maintaining the temperature.
  • the target temperature (43) for constant temperature control and the target humidity (45) for constant temperature control are both shown as constant values without change.
  • the metabolic rate (41) indicates the metabolic rate of a relaxed (for example, quietly sitting on a chair) occupant (40).
  • the horizontal axis is time, and even if the person is similarly relaxed, the metabolic amount is 1.1 met (metabolic equivalent) at the beginning (at 0 minutes).
  • the metabolic rate gradually decreases when the relaxed state is continued, and reaches 1.0 met after about 90 minutes. Due to such a decrease in the amount of metabolism, the sensible temperature decreases. It should be noted that the above-mentioned decrease in the metabolic amount occurs within about 90 minutes after the average state of relaxation, and the same degree of metabolic amount is maintained thereafter.
  • Fig. 4 also shows the sensible temperature.
  • the sensible temperature when the room temperature is maintained at the initial value Tn ° C of the set temperature is shown by a broken line as the sensible temperature (47) of constant temperature control. Even if the room temperature is maintained at Tn ° C., the sensible temperature (47) of constant temperature control decreases as the amount of metabolism decreases.
  • control unit (13) performs a first operation of raising the target humidity in one step or multiple steps while maintaining the target temperature, and a second operation of raising the target temperature and lowering the target humidity. Execute at least once in order.
  • the control unit (13) of the air conditioning system controls the temperature control unit (11) and the humidity control unit (12) to set the sensible temperature of the occupant (40) to a constant value. Maintain at (initial value Tn).
  • Tn initial value
  • the temperature in the room should be raised in accordance with the decrease in the amount of metabolism.
  • the decrease in the sensible temperature is gradual, and even if the set temperature is increased in the smallest adjustable unit (for example, 0.5 ° C.), the occupant may feel the temperature increase. As a result, the occupant (40) may feel stressed or change the temperature setting of the air conditioning system.
  • the sensible temperature can be adjusted in smaller units so that the change is not perceived. An example thereof is shown in FIG.
  • the metabolic rate (41) gradually begins to decrease, and the sensible temperature begins to decrease accordingly (at this point, the same as the sensible temperature (47) of the constant temperature system). .. Therefore, after a certain period of time (15 minutes in the example of FIG. 4) elapses, the target humidity is increased to RHn + ( ⁇ / 2)% as in the first mode target humidity (44). As the humidity rises, the sensible temperature rises. As a result, the sensible temperature of the occupant (40) can be brought close to the target sensible temperature (46) that is maintained constant. Actually, the sensible temperature decreases until 15 minutes, similar to the sensible temperature (47) of the constant temperature system, and rises to the target sensible temperature (46) as the first mode target humidity (44) rises. Should be. However, if the decrease in the sensible temperature at 15 minutes is sufficiently small, it is not perceived by the occupant (40) and can be considered to be equivalent to achieving the target sensible temperature (46).
  • the amount of increase in the target humidity (44) in the first mode is set to be equal to or more than the minimum unit that can be set as the target humidity.
  • ⁇ / 2 may be 5% ( ⁇ may be 10%).
  • the metabolic rate (41) will continue to decrease and the sensible temperature will continue to decrease. Therefore, when a certain time has elapsed (30 minutes in FIG. 4), the first mode target humidity (44) is raised again to RHn + ⁇ %. As a result, the sensible temperature of the occupant (40) is maintained close to the target sensible temperature (46).
  • the operation of raising the first mode target humidity in one step or multiple steps while maintaining the first mode target temperature (42) is defined as the first operation.
  • the metabolic rate (41) will continue to decrease until about 90 minutes have passed. Therefore, the target temperature and the target humidity are continuously controlled to maintain the sensible temperature of the occupant (40). However, if the humidity continues to rise, high humidity can cause discomfort. Therefore, at a certain time point (45 minutes in FIG. 4), the first mode target temperature (42) is raised (Tn + ⁇ ° C.) and the first mode target humidity (44) is lowered (FIG. 4). In the example of, return to RHn%). As a result, the sensible temperature of the occupant (40) can be maintained close to the target sensible temperature (46) while keeping the humidity within a certain range. This operation is referred to as a second operation.
  • the amount of increase in the target temperature should be equal to or greater than the minimum unit that can be set as the target temperature. For example, if the air conditioning system can adjust the temperature in 0.5 ° C increments, ⁇ may be 0.5 ° C.
  • the first mode target humidity (44) and the first mode target temperature (42) are similarly controlled to keep the sensible temperature of the occupant (40) constant. maintain.
  • the decrease in the metabolic rate (41) is completed and the decrease in the sensible temperature does not occur. Therefore, the first mode is completed in about 90 minutes, and by maintaining the temperature and humidity at that time, the sensible temperature of the occupant (40) can be maintained without fluctuating.
  • the temperature rises by ⁇ ° C. and the humidity rises by ⁇ % from the time when the first mode is started. If the values of ⁇ and ⁇ are as in the above example, the temperature has risen by 0.5 ° C. and the humidity has risen by 10%.
  • the temperature is raised only once. However, it may be performed multiple times. In this case, the first operation of raising the target humidity in one step or multiple steps while maintaining the target temperature and the second operation of raising the target temperature and lowering the target humidity are repeated in order.
  • Humidity is raised by ⁇ / 2 ° C in two steps, but this can also be simplified by step by step, and conversely, it can be raised in three or more steps.
  • control is performed with 15 minutes as the time unit, but this is an example, and other time units may be used. It is not essential to control every same time unit, and the interval of control may be gradually widened in consideration of the gradual decrease in the metabolic rate (41).
  • the time for continuing the first mode is about 90 minutes. This is because it takes about 90 minutes on average to complete the decrease in human metabolism in a relaxed state.
  • a slightly longer or shorter time (for example, about 75 to 115 minutes) may be set in consideration of individual differences and the like.
  • the target temperature and humidity it is possible to set the target temperature and humidity to the temperature and humidity set by the occupant (40) using the controller (15) or the like.
  • the controller (15) or the like since the occupant (40) cannot always set an appropriate value, it is desirable to automatically set a comfortable target temperature and target humidity.
  • the control unit (13) of the air conditioning system is an estimation unit (31) that estimates the room temperature (comfortable temperature) that the occupant (40) feels comfortable with, and makes such an estimation. It is provided with a storage unit (32) that stores model information (33) to be used. Indoor and outdoor environmental information (particularly temperature and humidity) is input from each sensor to the control unit (13), and the estimation unit is based on the information and the model information (33) of the storage unit (32). (31) estimates the comfortable temperature. This is a temperature that the occupant (40) does not feel hot or cold, and is also called a thermal neutral temperature.
  • Model information (33) includes, for example, Adaptive Comfort Model. This is a model that identifies the thermal neutral temperature in a room based on the history of outdoor temperatures experienced by humans.
  • the estimation unit (31) may set the target temperature in the room based on the information of such a model stored in the storage unit (32) and the information of the outdoor temperature obtained by the outdoor temperature sensor (26). Of course, it is also possible to set the target temperature based on other types of information. Further, as will be described later, the air conditioning system may be connected to the server via the Internet or the like, and the estimated target temperature may be set there. Artificial intelligence may be used for this.
  • the target humidity is based on conditions such as ensuring that the skin moisture content of the occupant (40) is within an appropriate range and that it is below a predetermined upper limit that can suppress the growth of mold in the room. Will be decided.
  • the target humidity is preferably set to an absolute humidity of 21 g / kg or less, and more preferably set to 18 g / kg or less.
  • the target humidity is preferably set to an upper limit value or less that can suppress the generation of mold, for example, 60% or less.
  • FIG. 5 shows the correspondence of absolute humidity (g / kg) corresponding to relative humidity (horizontal axis,%) and temperature (vertical axis, ° C.). Further, when the above conditions (1) and (2) are satisfied, the cell range of the table is surrounded by a thick line and the numerical value is shown in bold. When the target temperature is set, the target humidity is set from this range.
  • the indoor temperature by the indoor temperature sensor (21) is 22 ° C. and the relative humidity in the room by the indoor humidity sensor (22) is 35%.
  • the absolute humidity in the room is 6.8 g / kg, which does not satisfy the condition (2) above.
  • the temperature is comfortable at 22 ° C, avoid changing the temperature and select the humidity to satisfy the condition (2). Also, from the viewpoint of energy saving, the amount of fluctuation should be minimized.
  • the absolute humidity becomes 8.7 g / kg, and the condition (2) is satisfied. Therefore, the environment is controlled by setting the initial target temperature to 22 ° C. and the initial target humidity to 45%.
  • this is just an example, and other methods may be used to determine the target humidity.
  • the room temperature detected by the room temperature sensor (21) is not a comfortable temperature, set the target temperature using, for example, model information (33) as described above.
  • a desirable target humidity is determined, for example, as shown in FIG.
  • the operation of the first mode corresponding to the decrease in the metabolic rate (41) as shown in FIG. 4 may be performed after the target temperature is achieved by the temperature control unit (11).
  • the first mode may be started by the operation of the occupant (40) (using the controller (15)). On the other hand, it is also preferable to detect that the occupant (40) is relaxed and start automatically.
  • the activity sensor (24) is used to detect the amount of activity of the occupants (40).
  • the activity sensor (24) is, for example, an infrared sensor, an image pickup device, or the like.
  • the control unit (13) starts the first mode. In this way, it is possible to control the temperature in response to the decrease in the sensible temperature without the need for the occupant (40) to operate the room. For example, it is particularly effective when the resident (40) falls asleep.
  • the air conditioning system of this embodiment has been described as being controlled by an independent control unit (13).
  • the air conditioning system may be connected to an external server.
  • the functions corresponding to the estimation unit (31) and the storage unit (32) are provided in the external server (both the control unit (13) and the external server may be provided).
  • the external server may be a server installed in the same building as the air conditioning system for controlling a plurality of air conditioning systems, or a cloud server connected via the Internet.
  • the air conditioner indoor unit (51) and the sensor unit (52) constituting the air conditioning system are shown.
  • the air conditioner indoor unit (51) corresponds to the air conditioner (10) shown in FIG.
  • the sensor unit (52) is a unit configured separately from the air conditioner indoor unit (51) including various sensors, and is used, for example, by being placed near a resident (40). Specifically, it has the functions of the indoor temperature sensor (21), indoor humidity sensor (22), and CO 2 concentration sensor (23) shown in FIG. 1, and further, the activity sensor (24) and the illuminance for detecting the indoor brightness. It may also have a function such as a sensor. Further, for example, the function of the controller (15) may be provided so as to enable operation by voice.
  • the sensor unit (52) detects (measures) indoor temperature, humidity, carbon dioxide concentration, illuminance, etc., and inputs parameters including at least one of these environmental information to a sensor connection server (53) connected via the Internet or the like. ). Further, the parameters related to the feeling of warmth and coldness of the occupant (40) may be similarly transmitted to the sensor connection server (53).
  • the parameters related to the feeling of warmth and coldness are, for example, gender, age, weight, and the like, and are matters that affect the feeling of heat and cold.
  • the preference of the occupant (40) regarding heat and cold (such as heat) may be included as a parameter.
  • the sensor connection server (53) has the function of artificial intelligence (55). Based on the information and parameters transmitted from the sensor unit (52), a learning model is generated in the sensor connection server (53) to determine the comfortable temperature. The determined comfortable temperature information is transmitted to another remote server (54). The remote server (54) transmits the comfortable temperature and the like received from the sensor connection server (53) to the air conditioner indoor unit (51) via the Internet or the like. The air conditioner indoor unit (51) adjusts the indoor temperature based on the received comfortable temperature.
  • FIG. 7 shows yet another example.
  • the air conditioning system includes the air conditioner indoor unit (51) and the sensor unit (52) as in the example of FIG. 6, and the configurations and functions of each are also the same.
  • the sensor connection server (53) is not used, and the sensor unit (52) directly transmits the detected information such as the room temperature to the remote server (54).
  • the function of the artificial intelligence (55) is provided in the remote server (54), and the artificial intelligence (55) determines the comfortable temperature in the remote server (54).
  • the determined comfortable temperature is transmitted from the remote server (54) to the air conditioner indoor unit (51), and the indoor temperature is adjusted based on this.
  • the artificial intelligence (55) can be used by the control unit (13) without using an external server.
  • the air conditioning system of the present embodiment may include a CO 2 concentration sensor (23) and a ventilation unit (14).
  • the carbon dioxide concentration is one of the indexes for evaluating the indoor air quality, and it is desirable to keep it below a predetermined value. Therefore, if the CO 2 concentration sensor (23) detects the carbon dioxide concentration in the room and the concentration exceeds a predetermined value, the control unit (13) operates the ventilation unit (14) to ventilate the room. To do.
  • the ventilation unit (14) may be operated when the carbon dioxide concentration reaches 1000 ppm or more according to a guideline set as an environmental management standard for buildings. If it is particularly necessary, a sensor for detecting the concentration of other gases of carbon dioxide may be used to maintain the concentration below a predetermined value.
  • Temperature control unit 12 Humidity control unit 13 Control unit 14 Ventilation unit 15 Controller 21 Indoor temperature sensor 22 Indoor humidity sensor 23 CO 2 concentration sensor (carbon dioxide concentration detection unit) 24 Activity sensor (activity detection unit) 26 Outdoor temperature sensor (outside air temperature detector) 27 Outdoor humidity sensor 31 Estimator 32 Storage 33 Model information (related information) 40 residents 51 Air conditioner indoor unit 52 Sensor unit 53 Sensor connection server 54 Remote server 55 Artificial intelligence

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)
  • Ventilation (AREA)
PCT/JP2020/015361 2019-04-22 2020-04-03 空調システム WO2020217933A1 (ja)

Priority Applications (4)

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EP20794250.9A EP3933285B1 (en) 2019-04-22 2020-04-03 Air conditioning system
SG11202110604TA SG11202110604TA (en) 2019-04-22 2020-04-03 Air-conditioning system
CN202080028362.5A CN113677937B (zh) 2019-04-22 2020-04-03 空调***
US17/500,476 US20220042710A1 (en) 2019-04-22 2021-10-13 Air-conditioning system

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JP2019081085A JP7460876B2 (ja) 2019-04-22 2019-04-22 空調システム
JP2019-081085 2019-04-22

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CN113310191A (zh) * 2021-06-09 2021-08-27 海信（山东）空调有限公司 空调器的控制方法及装置、空调器和计算机可读存储介质
JP7249068B1 (ja) 2022-03-28 2023-03-30 ｃｙｎａｐｓ株式会社 換気制御システム

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US20220042710A1 (en) 2022-02-10
EP3933285B1 (en) 2024-05-22
SG11202110604TA (en) 2021-10-28
CN113677937B (zh) 2023-04-28
JP7460876B2 (ja) 2024-04-03
EP3933285A4 (en) 2022-12-07
CN113677937A (zh) 2021-11-19
EP3933285A1 (en) 2022-01-05

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