US20170321922A1 - Ventilation control device, ventilation system, and program - Google Patents

Ventilation control device, ventilation system, and program Download PDF

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Publication number
US20170321922A1
US20170321922A1 US14/763,503 US201414763503A US2017321922A1 US 20170321922 A1 US20170321922 A1 US 20170321922A1 US 201414763503 A US201414763503 A US 201414763503A US 2017321922 A1 US2017321922 A1 US 2017321922A1
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United States
Prior art keywords
ventilation
absolute difference
path
specified value
control device
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US14/763,503
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English (en)
Inventor
Hayato Takahashi
Nobuaki Yabunouchi
Naoki Muro
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. reassignment PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: YABUNOUCHI, NOBUAKI, MURO, NAOKI, TAKAHASHI, HAYATO
Publication of US20170321922A1 publication Critical patent/US20170321922A1/en
Abandoned legal-status Critical Current

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    • F24F11/0076—
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • 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
    • F24F11/0001—Control or safety arrangements for ventilation
    • F24F11/0012—
    • F24F11/0015—
    • F24F11/04—
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • 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
    • 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
    • F24F2110/30—Velocity
    • F24F2110/32—Velocity of the outside air

Definitions

  • the present invention relates to a ventilation control device, a ventilation system, and a program that are used to control ventilation in a building.
  • the system described in Document 1 is configured to select a ventilation path in the building based on: information such as a wind direction and a wind speed outside the building, and outside air temperature; information such as room temperature inside the building; and information such as arrangement of rooms, and positions of openings.
  • the conventional system described in Document 1 has a problem that, when the difference between expected ventilation effect and actual ventilation effect is large, the conventional system selects a ventilation path having a small actual ventilation effect. That is, the conventional system described in Document 1 may select the ventilation path in which the actual ventilation effect is small although the expected ventilation effect is large.
  • the present invention has been made in the light of the above-mentioned problem, and it is an object thereof to provide a ventilation control device, a ventilation system, and program that can precisely set a ventilation path having a large actual ventilation effect.
  • a ventilation control device is configured, at predetermined intervals, to switch to a ventilation path in a building and a ventilation quantity of air passing through the switched ventilation path.
  • the ventilation control device includes an information acquisition unit, a ventilation-path setting unit, a ventilation-quantity setting unit, and an output unit.
  • the information acquisition unit is configured to acquire environmental information.
  • the environmental information includes weather information and indoor environmental information.
  • the weather information includes wind pertinent information, and air temperature and air humidity outside the building.
  • the air temperature outside the building is an outside air temperature.
  • the air humidity outside the building is an outside air humidity.
  • the wind pertinent information is information about wind flowing outside the building.
  • the indoor environmental information includes room temperature and room humidity in the building.
  • the ventilation-path setting unit is configured to set the ventilation path based on the environmental information acquired by the information acquisition unit.
  • the ventilation-quantity setting unit is configured to set the ventilation quantity based on the environmental information acquired by the information acquisition unit and the ventilation path that is set by the ventilation-path setting unit.
  • the output unit is configured to output the ventilation path that is set by the ventilation-path setting unit and the ventilation quantity that is set by the ventilation-quantity setting unit.
  • the ventilation-path setting unit is configured to set a plurality of candidate paths based on the environmental information. The plurality of candidate paths have priorities in descending order of expected ventilation effects.
  • the ventilation-path setting unit is configured, in the case where a first candidate path having the highest priority of the plurality of candidate paths is identical with a previously set ventilation path, to set the first candidate path as the ventilation path, when a difference value between a room temperature previously acquired by the information acquisition unit and a room temperature presently acquired by the information acquisition unit is equal to or more than a predetermined threshold, and to set, as the ventilation path, a second candidate path having the second highest priority of the plurality of candidate paths, when the difference value is less than the predetermined threshold.
  • the ventilation-path setting unit is preferably configured to always set the second candidate path as the ventilation path after the difference value in the first candidate path is less than the predetermined threshold predetermined times.
  • the ventilation control device further includes an opening control unit.
  • the opening control unit is configured to control an opening control device.
  • the opening control device is configured to control opening/closing of an opening formed in the building, based on the ventilation path and the ventilation quantity that are output from the output unit.
  • the ventilation control device further includes a state determining unit and an auxiliary-control unit.
  • the state determining unit is configured to determine a state of a ventilation auxiliary device according to the ventilation path and the ventilation quantity that are output from the output unit.
  • the ventilation auxiliary device is configured to assist ventilation through the ventilation path.
  • the auxiliary-control unit is configured to control the ventilation auxiliary device so that the ventilation auxiliary device is in the state determined by the state determining unit.
  • the ventilation control device further includes a first determining unit, a second determining unit, a third determining unit, and a switching-interval setting unit.
  • the first determining unit is configured to determine whether or not a first absolute difference is less than a first specified value.
  • the first absolute difference indicates an absolute difference between the room temperature and the outside air temperature that are acquired by the information acquisition unit.
  • the second determining unit is configured, when the first absolute difference is less than the first specified value, to determine whether or not a second absolute difference is less than a second specified value.
  • the second absolute difference indicates an absolute difference between the room temperature acquired by the information acquisition unit and a preset temperature in the ventilation path.
  • the third determining unit is configured, when the second absolute difference is less than the second specified value, to determine whether or not a third absolute difference is less than a third specified value.
  • the third absolute difference indicates an absolute difference between room temperature presently acquired by the information acquisition unit and room temperature previously acquired by the information acquisition unit.
  • the switching-interval setting unit is configured to set each of the predetermined intervals to a first time period, when the first absolute difference is equal to or more than the first specified value, when the second absolute difference is equal to or more than the second specified value, or when the third absolute difference is equal to or more than the third specified value.
  • the switching-interval setting unit is configured to set each of the predetermined intervals to a second time period longer than the first time period when the third absolute difference is less than the third specified value.
  • a ventilation system includes the ventilation control device and an opening control device.
  • the opening control device is configured to control opening/closing of an opening of the building by control of the ventilation control device.
  • a program according to the present invention is used for, at predetermined switching intervals, switching to a ventilation path in a building and setting a ventilation quantity of air passing through the switched ventilation path.
  • the program causes a computer to function as a ventilation-path setting unit, a ventilation-quantity setting unit, and an output unit.
  • the ventilation-path setting unit is configured to set the ventilation path based on environmental information acquired by an information acquisition unit.
  • the environmental information includes: wind pertinent information about wind flowing outside the building; weather information including air temperature and air humidity outside the building; and indoor environmental information including room temperature and room humidity in the building.
  • the air temperature outside the building is an outside air temperature.
  • the air humidity outside the building is an outside air humidity.
  • the ventilation-quantity setting unit is configured to set the ventilation quantity based on the environmental information acquired by the information acquisition unit and the ventilation path that is set by the ventilation-path setting unit.
  • the output unit is configured to output the ventilation path that is set by the ventilation-path setting unit and the ventilation quantity that is set by the ventilation-quantity setting unit.
  • the program causes the computer, as the ventilation-path setting unit, to set a plurality of candidate paths based on the environmental information.
  • the plurality of candidate paths have priorities in descending order of expected ventilation effects.
  • the program causes the computer, as the ventilation-path setting unit, to set, in the case where a first candidate path having the highest priority of the plurality of candidate paths is identical with a previously set ventilation path, the first candidate path as the ventilation path, when a difference value between a room temperature previously acquired by the information acquisition unit and a room temperature presently acquired by the information acquisition unit is equal to or more than a predetermined threshold.
  • the program causes the computer, as the ventilation-path setting unit, to set, as the ventilation path, a second candidate path having the second highest priority of the plurality of candidate paths, when the difference value is less than the predetermined threshold.
  • the present invention is not limited to the program.
  • the present invention may be a computer-readable recording medium recording the program.
  • FIG. 1 is a block diagram showing a configuration of a ventilation control device according to an embodiment
  • FIG. 2 is a block diagram showing a configuration of a ventilation system according to the embodiment
  • FIG. 3 is a flow chart showing an operation of the ventilation control device according to the embodiment.
  • FIG. 4 is a flow chart showing a setting-operation of a ventilation path of the ventilation control device according to the embodiment.
  • a ventilation control device is configured to set a ventilation state (ventilation path, ventilation quantity) in a building at predetermined intervals (switching intervals).
  • the ventilation control device When setting the ventilation path, first, the ventilation control device is configured to set a plurality of candidate paths having priorities in descending order of expected ventilation effects. Second, in the case where a first candidate path having the highest priority is identical with a previously set ventilation path, the ventilation control device is configured to set, as the ventilation path, not a first candidate path but a second candidate path having the second highest priority coming after that of the first candidate path, when a difference value between a previous room temperature and a present room temperature is less than a threshold.
  • the ventilation control device when the present room temperature is substantially equal to the previous room temperature, the ventilation control device according to the present embodiment is configured to determine that actual ventilation effect of the previously set ventilation path is small and to prevent the ventilation path having the small ventilation effect from being set continuously.
  • the ventilation path is set so that air passes through a space (room, passage, stairs, for example) in the building from the outside of the building.
  • the ventilation quantity is the quantity of the air that passes through the ventilation path.
  • the high ventilation effect means that one or more persons in the building can feel comfort by the ventilation.
  • the ventilation effect is high.
  • the case is preferable, in which the room temperature before the ventilation is higher than one or more persons' body temperature in the building and the room temperature after the ventilation decreases a temperature near the body temperature.
  • one or more persons' effective temperature in the building decreases, after the ventilation, from a high temperature at which one or more persons in the building is uncomfortable, it is said that the ventilation effect is high.
  • the ventilation effect is high.
  • the inventors consider that the ventilation effect is high if any of these three cases occurs. On the other hand, if any one of these three cases does not occur, the ventilation effect is low.
  • the low ventilation path means that no one in the building can feel comfort by the ventilation. Specifically, in the case where the difference between the room temperature before the ventilation and the room temperature after the ventilation is small and one or more persons' effective temperature in the building does not decrease and carbon dioxide in room(s) maintains a high state in which one or more persons in the building is uncomfortable does not decrease, it is said that the ventilation effect is low.
  • the ventilation system includes a ventilation control device 1 , a plurality of opening control devices 2 , and a plurality of ventilation auxiliary devices 3 .
  • the ventilation system further includes an anemometer 4 , a first thermo-hygrometer 5 , a second thermo-hygrometer 6 , and an input device 7 .
  • the ventilation system may be used not only for the single house but also for each dwelling unit in a collective housing for example.
  • the ventilation system may be used for an office, a store, an institution, a factory, or the like.
  • Each opening control device 2 is configured to control opening/closing of an opening 81 formed in a building 8 .
  • Each opening control device 2 is a window opening/closing device configured to open/close a window as the opening 81 by operating a fitting (window glass, window shutter, or the like), for example, or a door opening/closing device configured to open/close an entrance as the opening 81 by operating a door. Examples of the door include an entrance door disposed at an entrance and a door disposed in the building 8 .
  • Each opening control device 2 is controlled by the ventilation control device 1 .
  • the anemometer 4 is installed outside the building 8 .
  • the anemometer 4 is configured to measure a direction (wind direction) and a speed (wind speed) of wind flowing outside the building 8 .
  • the first thermo-hygrometer 5 is installed outside the building 8 .
  • the first thermo-hygrometer 5 is configured to measure air temperature outside the building 8 (outside air temperature) and humidity outside the building 8 (outside air humidity).
  • the second thermo-hygrometer 6 is installed in the building 8 .
  • the second thermo-hygrometer 6 is configured to measure air temperature in the building 8 (room temperature) and humidity in the building 8 (room humidity).
  • the input device 7 is used, for example, for one person or any one of more persons in the building 8 (hereinafter “one or more persons in rooms”) inputting an instruction to the ventilation control device 1 .
  • the input device 7 is configured to receive an input of the preset temperature (target temperature) in the building 8 , for example, by an input operation by one or more persons in rooms.
  • the input device 7 may be also configured to receive inputs of various instructions other than the preset temperature.
  • the ventilation control device 1 is a controller(s) that includes, as a main component, a computer(s) (including a microcomputer(s)) in which a CPU(s) (Central Processing Unit(s)) and a memory(-ies) are mounted, for example. As shown in FIG. 1 , the ventilation control device 1 includes an information acquisition unit 11 , a preset-temperature acquisition unit 12 , a storage unit 13 , and an arithmetic processor 14 .
  • the information acquisition unit 11 is configured to acquire environmental information (environment data).
  • the environmental information (environment data) includes weather information (weather data) and indoor environmental information (indoor environment data).
  • the weather information (weather data) includes wind pertinent information (wind permanent data), and air temperature and air humidity outside the building 8 .
  • the wind pertinent information is information about wind blowing outside the building 8 , and includes a wind direction and wind speed of the wind.
  • the indoor environmental information includes room temperature and room humidity in the building 8 .
  • the information acquisition unit 11 includes a first acquisition unit (wind-pertinent-information acquisition unit) 111 , a second acquisition unit (outside-air-temperature-and-humidity acquisition unit) 112 , and a third acquisition unit (room-temperature-and-humidity acquisition unit) 113 .
  • the first acquisition unit 111 includes an interface unit (not shown) for connecting with the anemometer 4 .
  • the first acquisition unit 111 is configured to acquire a measuring result of the anemometer 4 , which is connected to the interface unit, from the anemometer 4 .
  • the first acquisition unit 111 is configured to acquire the measuring result from the anemometer 4 at a cycle shorter than the switching interval for setting the ventilation state.
  • the first acquisition unit 111 is configured to select a wind direction based on the highest frequency from distribution of the wind directions acquired during the cycle (time period) from the time point when the previous ventilation state was set.
  • the first acquisition unit 111 is configured to calculate an average value of wind speeds acquired during the cycle (time period) from the time point when the previous ventilation path and the previous ventilation quantity were set. Therefore, the first acquisition unit 111 can acquire, as the wind pertinent information, the selected wind direction and the calculated wind speed (average value).
  • the first acquisition unit 111 may acquire the wind pertinent information from the anemometer 4 by wireless communication through a transmission medium of an electric wave instead of a cable.
  • the second acquisition unit 112 includes an interface unit (not shown) for connecting with the first thermo-hygrometer 5 .
  • the second acquisition unit 112 is configured to acquire a measuring result of the first thermo-hygrometer 5 , which is connected to the interface unit, from the first thermo-hygrometer 5 . That is, the second acquisition unit 112 is configured to acquire an outside air temperature and an outside air humidity from the first thermo-hygrometer 5 .
  • the second acquisition unit 112 may acquire the outside air temperature and the outside air humidity from the first thermo-hygrometer 5 by wireless communication through a transmission medium of an electric wave instead of a cable.
  • the third acquisition unit 113 includes an interface unit (not shown) for connecting with the second thermo-hygrometer 6 .
  • the third acquisition unit 113 is configured to acquire a measuring result of the second thermo-hygrometer 6 , which is connected to the interface unit, from the second thermo-hygrometer 6 . That is, the third acquisition unit 113 is configured to acquire indoor environmental information from the second thermo-hygrometer 6 .
  • the third acquisition unit 113 may acquire the indoor environmental information from the second thermo-hygrometer 6 by wireless communication through a transmission medium of an electric wave instead of a cable.
  • the preset-temperature acquisition unit 12 includes an interface unit (not shown) for connecting with the input device 7 .
  • the preset-temperature acquisition unit 12 is configured to acquire the preset temperature inputted by an input operation to the input device 7 , which is connected to the interface unit, from the input device 7 .
  • the preset-temperature acquisition unit 12 may acquire the preset temperature from the input device 7 by wireless communication through a transmission medium of an electric wave instead of a cable.
  • the storage unit 13 includes a first storage unit (weather-information-history storage unit) 131 , a second storage unit (indoor-environmental-information-history storage unit) 132 , and a third storage unit (control-log storage unit) 133 .
  • the first storage unit 131 is configured to store a history of the wind pertinent information that has been ever acquired by the first acquisition unit 111 . Whenever the first acquisition unit 111 acquires the wind pertinent information, the wind pertinent information is stored in the first storage unit 131 by control of the arithmetic processor 14 so as to be associated with an acquisition date and an acquisition time.
  • the first storage unit 131 is configured to store a history of the outside air temperature and the outside air humidity that have ever been acquired by the second acquisition unit 112 . Whenever the second acquisition unit 112 acquires the outside air temperature and the outside air humidity, the outside air temperature and the outside air humidity are stored in the first storage unit 131 by control of the arithmetic processor 14 so as to be associated with an acquisition date and an acquisition time.
  • the second storage unit 132 is configured to store a history of the indoor environmental information that has been ever acquired by the third acquisition unit 113 . Whenever the third acquisition unit 113 acquires the indoor environmental information, the indoor environmental information is stored in the second storage unit 132 by control of the arithmetic processor 14 so as to be associated with an acquisition date and an acquisition time.
  • the third storage unit 133 is configured to store, by control of the arithmetic processor 14 , a history of a control content, that is, the control log, to each opening control device 2 .
  • a control content that is, the control log
  • the control content is stored in the third storage unit 133 by control of the arithmetic processor 14 so as to be associated with a control date and a control time.
  • the arithmetic processor 14 includes a ventilation-path setting unit 141 , a ventilation-quantity setting unit 142 , an output unit 143 , and an opening control unit 144 .
  • the arithmetic processor 14 further includes a state determining unit 145 , and an auxiliary-control unit 146 .
  • the arithmetic processor 14 further includes a first determining unit 151 , a second determining unit 152 , a third determining unit 153 , and a switching-interval setting unit 154 .
  • the arithmetic processor 14 can execute various programs to perform various processes.
  • the various programs are stored in the storage unit 13 .
  • the ventilation-path setting unit 141 is configured to set the ventilation path in the building 8 based on the environmental information acquired by the information acquisition unit 11 and the history information stored in the storage unit 13 .
  • the ventilation-path setting unit 141 of the present embodiment is configured to set the ventilation path in the building 8 by executing a ventilation-path setting program for setting the ventilation path.
  • a ventilation-path setting program for setting the ventilation path.
  • building information about room arrangement (including a position of an opening 81 ) in the building 8 is preliminarily input in the storage unit 13 .
  • the ventilation-path setting program is stored in the storage unit 13 .
  • the ventilation-quantity setting unit 142 is configured to set the ventilation quantity of air that passes through the ventilation path that is set by the ventilation-path setting unit 141 , based on the environmental information acquired by the information acquisition unit 11 , the ventilation path that is set by the ventilation-path setting unit 141 , and the history information stored in the storage unit 13 .
  • the ventilation-quantity setting unit 142 of the present embodiment is configured to set the ventilation quantity of the ventilation through the ventilation path by executing a ventilation-quantity setting program for setting the ventilation quantity.
  • the ventilation-quantity setting program is executed, the building information about the room arrangement (including the position of the opening 81 ) in the building 8 is preliminarily input.
  • the ventilation-quantity setting program is stored in the storage unit 13 .
  • the ventilation-quantity setting unit 142 has a function as a timer configured to clock the switching-interval.
  • the switching-interval period is a time period between the previous switch timing and the present switch timing.
  • the switch timing is a predetermined time point within a predetermined time period from a time point when the ventilation path and the ventilation quantity are set.
  • the predetermined time point includes a time point when the ventilation path and the ventilation quantity are set. That is, the predetermined time point may be the time point when the ventilation path and the ventilation quantity are set, and a specific time point within the predetermined time period from the time point when the ventilation path and the ventilation quantity are set.
  • the timer is configured to clock an elapsed time period from the predetermined time point.
  • the output unit 143 is configured to output, to the opening control unit 144 , the ventilation path that is set by the ventilation-path setting unit 141 and the ventilation quantity that is set by the ventilation-quantity setting unit 142 .
  • the opening control unit 144 is configured to determine the control content of each opening control device 2 based on the ventilation path and ventilation quantity outputted from the output unit 143 .
  • the opening control unit 144 is configured to determine the control content of each opening control device 2 so that the ventilation path through which the air of the ventilation quantity passes may actually be formed in the building 8 . Then, the opening control unit 144 is configured to control each opening control device 2 according to the control content.
  • the ventilation-path setting unit 141 is configured to execute the ventilation-path setting program to set the ventilation path by the following operations. First, the ventilation-path setting unit 141 sets the plurality of candidate paths having the priorities in descending order of the expected ventilation effects, based on the environmental information acquired by the information acquisition unit 11 .
  • the ventilation-path setting unit 141 is configured to set the first candidate path as the ventilation path, when a difference value (T 2 ⁇ T 1 ) between room temperature T 2 , which is previously acquired by the information acquisition unit 11 , and a room temperature T 1 , which is presently acquired by the information acquisition unit 11 is equal to or more than a predetermined threshold ⁇ 1 .
  • the ventilation-path setting unit 141 is configured to set, as the ventilation path, the second candidate path having the second highest priority of the plurality of candidate paths when the difference value (T 2 ⁇ T 1 ) is less than the threshold ⁇ 1 .
  • the ventilation-path setting unit 141 of the present embodiment is configured to always set the second candidate path as the ventilation path.
  • each ventilation auxiliary device 3 examples include a fan (ventilation fan 31 , ceiling fan 32 ) and an air conditioner 33 .
  • Each ventilation auxiliary device 3 is configured to assist the ventilation through the ventilation path that is set by the ventilation-path setting unit 141 .
  • the ventilation fan 31 is disposed in, for example, a kitchen or a bathroom in the building 8 .
  • the ceiling fan 32 is disposed, for example, on a ceiling of a room or above stairs in the building 8 .
  • the air conditioner 33 is disposed in a room in the building 8 .
  • the state determining unit 145 is configured to determine a state of each ventilation auxiliary device 3 according to the ventilation path and the ventilation quantity that are outputted from the output unit 143 .
  • the auxiliary-control unit 146 is configured to control each ventilation auxiliary device 3 to be in the state of each ventilation auxiliary device 3 , which is determined by the state determining unit 145 .
  • Each ventilation auxiliary device 3 is configured to work according to control of the auxiliary-control unit 146 .
  • the third storage unit 133 of the present embodiment is configured to store not only the history of the control content of each opening control device 2 but also a history of the state of each ventilation auxiliary device 3 .
  • the auxiliary-control unit 146 controls each ventilation auxiliary device 3
  • the state of each ventilation auxiliary device 3 is stored in the third storage unit 133 by the control of the arithmetic processor 14 so as to be associated with a control date and a control time.
  • the ventilation control device 1 needs to switch the ventilation state (ventilation path, ventilation quantity) according to change in the wind direction and the wind speed.
  • the switching interval at which the ventilation control device 1 switches the ventilation state is about ten minutes.
  • the ventilation state is switched at a short time period more than necessary, discomfort to one or more persons in rooms may increase.
  • the switching interval of the ventilation state is long, the room temperature may not reach the preset temperature, or the room temperature may exceed the preset temperature, which may result in decreasing comfort to one or more persons in rooms.
  • the ventilation control device 1 can switch the switching interval of the ventilation state (ventilation path, ventilation quantity) according to the following determination condition, without fixing the switching interval.
  • the first determining unit 151 is configured to compare the room temperature (present room temperature T 1 ) and the outside air temperature (present outside air temperature T 3 ) that have been acquired by the information acquisition unit 11 .
  • the first determining unit 151 is configured to determine whether or not an absolute difference (hereinafter referred to as a “first absolute difference”)
  • the second determining unit 152 is configured to compare the room temperature (present room temperature T 1 ) acquired by the information acquisition unit 11 with the preset temperature T 4 in the ventilation path when the first absolute difference
  • the second determining unit 152 is configured to determine whether or not an absolute difference (hereinafter referred to as a “second absolute difference”)
  • the third determining unit 153 is configured to compare the room temperature (present room temperature T 1 ) acquired by the information acquisition unit 11 with the previously acquired room temperature T 2 stored in the second storage unit 132 when the second absolute difference
  • the third determining unit 153 is configured to determine whether or not an absolute difference (hereinafter referred to as a “third absolute difference”)
  • the switching-interval setting unit 154 is configured to set the switching interval, that is, a next control start timing, for the ventilation state (ventilation path, ventilation quantity).
  • the switching-interval setting unit 154 is configured to set the switching interval to the first time period. That is, in this case, the switching-interval setting unit 154 will set a next switch timing after the first time period passes from the present switch timing.
  • the switching-interval setting unit 154 is configured to set the switching interval to the first time period.
  • is equal to or more than the third default value A 3
  • the switching-interval setting unit 154 is configured to set the switching interval to the second time period. That is, in this case, the switching-interval setting unit 154 will set the next switch timing after the second time period passes from the present switch timing. A time period longer than the first time period is employed as the second time period.
  • the ventilation control device 1 is configured to comparatively shorten the switching interval when any of the first absolute difference
  • the ventilation control device 1 is configured to comparatively lengthen the switching interval when the first absolute difference
  • the storage unit 13 is configured to store not only the history of the weather information, the history of the indoor environmental information, and the control log, but also various kinds of information if necessary.
  • the storage unit 13 is configured to store a program for causing the ventilation control device (computer) 1 to perform various functions. That is, the storage unit 13 is configured to store a program(s) that causes the ventilation control device 1 to function as the ventilation-path setting unit 141 , the ventilation-quantity setting unit 142 , the output unit 143 , the opening control unit 144 , the state determining unit 145 , the auxiliary-control unit 146 , the first determining unit 151 , the second determining unit 152 , the third determining unit 153 , and the switching-interval setting unit 154 .
  • the program is preliminarily stored in the storage unit 13 at the time of shipment of the ventilation control device 1 .
  • the ventilation control device 1 acquires the program after the shipment, as an example of the technique with which the ventilation control device 1 acquires the program, there is a technique using a computer-readable recording medium that stores the program.
  • the ventilation control device 1 need only to include a reader (not shown) for reading data in the recording medium.
  • the recording medium include an optical disc and a memory card.
  • the reader include a drive device configured to read out information on the optical disc, and a memory card reader configured to read out information in the memory card.
  • the ventilation control device 1 downloads the program from another device (for example, server) through a network.
  • the ventilation control device 1 need only to have a communication function for communicating with the above-mentioned other device through the network.
  • the ventilation control method is realized by executing the program stored in the storage unit 13 of the ventilation control device 1 .
  • the information acquisition unit 11 acquires the environmental information (S 1 ).
  • the ventilation-path setting unit 141 of the arithmetic processor 14 sets the ventilation path based on the environmental information acquired in step S 1 and the history information stored in the storage unit 13 (S 2 ).
  • step S 2 the ventilation-path setting unit 141 sets the plurality of candidate paths having priorities in descending order of expected ventilation effect (S 21 ).
  • the ventilation-path setting unit 141 sets the first candidate path as the ventilation path (S 24 ).
  • the ventilation-path setting unit 141 sets the first candidate path as the ventilation path (S 24 ), when the difference value (T 2 ⁇ T 1 ) between the previous room temperature T 2 and the present room temperature T 1 is equal to or more than the threshold ⁇ 1 (NO at S 23 ).
  • the ventilation-path setting unit 141 sets, as the ventilation path, the second candidate path having the second highest priority of the plurality of ventilation paths (S 25 ).
  • the ventilation-quantity setting unit 142 of the arithmetic processor 14 sets the ventilation quantity based on the environmental information acquired in step S 1 , the ventilation path that is set in step S 2 , and the history information stored in the storage unit 13 (S 3 ).
  • the state determining unit 145 of the arithmetic processor 14 determines the state of each ventilation auxiliary device 3 according to the ventilation path that is set in step S 2 and the ventilation quantity that is set in step S 3 (S 4 ).
  • the state determining unit 145 determines the state of each ventilation auxiliary device 3 as an OFF state.
  • the opening control unit 144 of the arithmetic processor 14 controls each opening control device 2 based on the ventilation path that is set in step S 2 and the ventilation quantity that is set in step S 3 (S 5 ).
  • the auxiliary-control unit 146 of the arithmetic processor 14 controls each ventilation auxiliary device 3 so as to be in the state determined in step S 4 .
  • the first determining unit 151 determines whether or not the first absolute difference
  • the second determining unit 152 determines whether or not the second absolute difference
  • the third determining unit 153 determines whether or not the third absolute difference
  • step S 6 when the first absolute difference
  • step S 7 when the second absolute difference
  • is also equal to or more than the third specified value A 3 (NO at S 8 )
  • the switching-interval setting unit 154 sets the switching interval to the first time period.
  • the switching-interval setting unit 154 sets the switching interval to the second time period longer than the first time period (S 10 ).
  • steps S 2 and S 3 after the first time period passes from the predetermined time point within the predetermined time period from the time point at which the ventilation path and the ventilation quantity are set (YES at S 11 ), the ventilation control device 1 returns to step S 1 and performs the operation for switching the ventilation state. Also, after the second time period passes from the predetermined time point (YES at 512 ), the ventilation control device 1 returns to step S 1 and performs the operation for switching the ventilation state.
  • the ventilation control device 1 is configured, at the predetermined intervals, to switch to the ventilation path in the building 8 and to set the ventilation quantity of the air passing through the switched ventilation path.
  • the ventilation control device 1 includes the information acquisition unit 11 , the ventilation-path setting unit 141 , the ventilation-quantity setting unit 142 , and the output unit 143 .
  • the information acquisition unit 11 is configured to acquire the environmental information.
  • the environmental information includes the weather information and the indoor environmental information.
  • the weather information includes the wind pertinent information, and the air temperature and the air humidity outside the building 8 .
  • the air temperature outside the building 8 is the outside air temperature.
  • the air humidity outside the building 8 is the outside air humidity.
  • the wind pertinent information is information about the wind flowing outside the building 8 .
  • the indoor environmental information includes the room temperature and the room humidity in the building 8 .
  • the ventilation-path setting unit 141 is configured to set the ventilation path based on the environmental information acquired by the information acquisition unit 11 .
  • the ventilation-quantity setting unit 142 is configured to set the ventilation quantity based on the environmental information acquired by the information acquisition unit 11 and the ventilation path that is set by the ventilation-path setting unit 141 .
  • the output unit 143 is configured to output the ventilation path that is set by the ventilation-path setting unit 141 and the ventilation quantity that is set by the ventilation-quantity setting unit 142 .
  • the ventilation-path setting unit 141 is configured to set the plurality of candidate paths based on the environmental information.
  • the plurality of candidate paths have the priorities in descending order of the expected ventilation effects.
  • the ventilation-path setting unit 141 is configured to set the first candidate path as the ventilation path, when the difference value (T 2 ⁇ T 1 ) between the room temperature T 2 previously acquired by the information acquisition unit 11 and the room temperature T 1 presently acquired by the information acquisition unit 11 is equal to or more than the predetermined threshold ⁇ 1 .
  • the ventilation-path setting unit 141 is configured to set, as the ventilation path, the second candidate path having the second highest priority of the plurality of candidate paths, when the difference value (T 2 ⁇ T 1 ) is less than the threshold ⁇ 1 .
  • the ventilation system includes the ventilation control device 1 and the opening control device 2 .
  • the opening control device 2 is configured to control the opening/closing of the opening 81 of the building 8 by the control of the ventilation control device 1 .
  • the program is for, at predetermined intervals, switching to the ventilation path in the building 8 and setting the ventilation quantity of the air passing through the switched ventilation path.
  • the program causes the computer to function as the ventilation-path setting unit 141 , a ventilation-quantity setting unit 142 , and the output unit 143 .
  • the ventilation-path setting unit 141 is configured to set the ventilation path based on the environmental information acquired by the information acquisition unit 11 .
  • the environmental information includes the weather information and the indoor environmental information.
  • the weather information includes the wind pertinent information, and the air temperature and the air humidity outside the building 8 .
  • the air temperature outside the building 8 is the outside air temperature.
  • the air humidity outside the building 8 is the outside air humidity.
  • the wind pertinent information is information about the wind flowing outside the building 8 .
  • the indoor environmental information includes the room temperature and the room humidity in the building 8 .
  • the ventilation-path setting unit 141 is configured to set the ventilation path based on the environmental information acquired by the information acquisition unit 11 .
  • the ventilation-quantity setting unit 142 is configured to set the ventilation quantity based on the environmental information acquired by the information acquisition unit 11 and the ventilation path that is set by the ventilation-path setting unit 141 .
  • the output unit 143 is configured to output the ventilation path that is set by the ventilation-path setting unit 141 and the ventilation quantity that is set by the ventilation-quantity setting unit 142 .
  • the program causes the computer, as the ventilation-path setting unit 141 , to perform the following operations.
  • the ventilation-path setting unit 141 is configured to set the plurality of candidate paths based on the environmental information.
  • the plurality of candidate paths have the priorities in descending order of the expected ventilation effects.
  • the ventilation-path setting unit 141 is configured to set the first candidate path as the ventilation path, when the difference value (T 2 ⁇ T 1 ) between the room temperature T 2 previously acquired by the information acquisition unit 11 and the room temperature T 1 presently acquired by the information acquisition unit 11 is equal to or more than a predetermined threshold ⁇ 1 .
  • the ventilation-path setting unit 141 is configured to set, as the ventilation path, the second candidate path having the second highest priority of the plurality of candidate paths, when the difference value (T 2 ⁇ T 1 ) is less than the threshold ⁇ 1 .
  • the ventilation control device 1 when the difference value (T 2 ⁇ T 1 ) between the room temperature T 2 previously acquired and the room temperature T 1 presently acquired is less than the threshold ⁇ 1 while the first candidate path having the highest priority is identical with the previously set ventilation path, the ventilation control device 1 is configured to set, as the ventilation path, not the first candidate path but the second candidate path having the second highest priority. Therefore, in the ventilation control device 1 according to the present embodiment, when the actual ventilation effect is small although the first large candidate path, in which the expected ventilation effect is large, has been previously set as the ventilation path last time, the second path can be presently set as the ventilation path instead of the first candidate path in which the actual ventilation effect is small.
  • the ventilation-path setting unit 141 is preferably configured to always set the second candidate path as the ventilation path after the difference value (T 2 ⁇ T 1 ) in the first candidate path is less than the threshold ⁇ 1 the predetermined times.
  • the ventilation control device 1 is configured to always set, as the ventilation path, the second candidate path having the second highest priority, after the difference value (T 2 ⁇ T 1 ) between the room temperature T 2 previously acquired and the room temperature T 1 presently acquired in the first candidate path having the highest priority is less than the threshold ⁇ 1 the predetermined times. Therefore, in the ventilation control device 1 according to the present embodiment, it is possible to securely exclude the ventilation path in which the actual small ventilation effect is small.
  • the ventilation-path setting unit 141 is preferably configured to always set the second candidate path as the ventilation path after the difference value (T 2 ⁇ T 1 ) in the first candidate path is less than the threshold ⁇ 1 the predetermined times.
  • the ventilation control device 1 is configured to control the opening control device 2 configured to control the opening/closing of the opening 81 based on the ventilation path and the ventilation quantity that are output from the output unit 143 . Therefore, in the ventilation control device 1 according to the embodiment, since the opening 81 can be made to open/close automatically, it is possible to perform the ventilation compared with the case where the opening 81 is made to open/close manually.
  • the ventilation control device 1 further includes the state determining unit 145 and the auxiliary-control unit 146 .
  • the state determining unit 145 is configured to determine the state of the ventilation auxiliary device 3 according to the ventilation path and the ventilation quantity that are output from the output unit 143 .
  • the ventilation auxiliary device 3 is configured to assist the ventilation through the ventilation path.
  • the auxiliary-control unit 146 is configured to control the ventilation auxiliary device 3 so that the ventilation auxiliary device 3 is in the state determined by the state determining unit 145 .
  • the ventilation control device 1 is configured to control each ventilation auxiliary device 3 , which is configured to assist the ventilation through the ventilation path, according to the ventilation path that is set by the ventilation-path setting unit 141 and the ventilation quantity that is set by the ventilation-quantity setting unit 142 . Therefore, in the ventilation control device 1 according to the embodiment, even if the sufficient ventilation is not obtained with the presently set ventilation path, it is possible to operate each ventilation auxiliary device 3 to prompt the ventilation. As a result, it is possible to improve in the comfort by the ventilation even the case of no wind.
  • the ventilation control device 1 further includes the first determining unit 151 , the second determining unit 152 , the third determining unit 153 , and the switching-interval determining unit 154 .
  • the first determining unit 151 is configured to determine whether or not the first absolute difference
  • the second determining unit 152 is configured, when the first absolute difference
  • the third determining unit 153 is configured, when the second absolute difference
  • the switching-interval setting unit 154 is configured to set each of the predetermined intervals to the first time period, when the first absolute difference
  • the switching-interval setting unit 154 is configured to set each of the predetermined intervals to the second time period longer than the first time period when the third absolute difference
  • the ventilation control device 1 is configured to comparatively shorten the switching interval when any of the first absolute difference
  • the ventilation control device 1 according to the present embodiment is configured to comparatively lengthen the switching interval when all of the first absolute difference
  • the ventilation control device 1 it is possible to perform the ventilation at switching intervals as long as possible while maintaining temperature environment in which one or more persons existing in the building 8 (one or more persons in rooms) do not feel discomfort if necessary. As a result, it is possible to improve energy saving and comfort by the ventilation without giving one or more persons in rooms discomfort by frequent switching.
  • the first acquisition unit 111 of the information acquisition unit 11 is configured to acquire the wind pertinent information from the anemometer 4 .
  • the first acquisition unit 111 may be configured to acquire the wind pertinent information from an external device (not shown).
  • the external device should just be, for example, a device configured to acquire and hold the wind pertinent information periodically.
  • the second acquisition unit 112 of the information acquisition unit 11 is configured to acquire the outside air temperature and outside air humidity from the first thermo-hygrometer 5 installed outside the building 8 .
  • the second acquisition unit 112 may be configured to acquire the outside air temperature and outside air humidity from an external device (not shown).
  • the external device should just be, for example, a device configured to acquire the outside air temperature and outside air humidity periodically.
  • the third acquisition unit 113 of the information acquisition unit 11 is configured to acquire the indoor environmental information from the second thermo-hygrometer 6 installed in the building 8 .
  • the third acquisition unit 113 may be configured to acquire the indoor environmental information from an external device (not shown).
  • the external device may be, for example, a device configured to acquire the indoor environmental information periodically.
  • the output unit 143 may be configured to output the ventilation state (ventilation path, ventilation quantity) that is presently set not only to the opening control unit 144 and the auxiliary-control unit 146 but also to a report device 9 .
  • the report device 9 is configured to report the ventilation state that is output from the output unit 143 . Therefore, it is possible to report the presently set ventilation state to one or more persons in rooms.
  • the report device 9 configured to report the ventilation state may be a display device configured to display the ventilation state on a screen thereof, and may be a sound-output device configured to output the ventilation state with a sound.
  • the sound-output device is, for example, a speaker.
  • the opening control unit 144 is configured to control the plurality of opening control devices 2 .
  • the output unit 143 may be configured to output the ventilation state (ventilation path, ventilation quantity) that is presently set to a management device (not shown) that is configured to manage the plurality of opening control devices 2 .
  • the management device if acquiring the ventilation state from the output unit 143 , the management device is configured to determine, based on the ventilation state, a control content of each opening control device 2 . Then, the management device is configured to control each opening control device 2 according to the control content.
  • the ventilation-quantity setting unit 142 has the function as the timer.
  • the configuration of the ventilation control device 1 other than the ventilation-quantity setting unit 142 may have the function as the timer.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)
  • Ventilation (AREA)
  • Building Environments (AREA)
US14/763,503 2013-01-24 2014-01-23 Ventilation control device, ventilation system, and program Abandoned US20170321922A1 (en)

Applications Claiming Priority (3)

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JP2013-011444 2013-01-24
JP2013011444A JP2014141841A (ja) 2013-01-24 2013-01-24 通風制御装置、通風システムおよびプログラム
PCT/JP2014/000322 WO2014115551A1 (ja) 2013-01-24 2014-01-23 通風制御装置、通風システムおよびプログラム

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WO2018137112A1 (zh) * 2017-01-24 2018-08-02 深圳企管加企业服务有限公司 通风设备物联网监控方法及系统
CN108170072B (zh) * 2017-12-28 2020-05-26 江苏久创电气科技有限公司 气体环境调控方法、装置及存储介质
JP7113789B2 (ja) * 2019-07-16 2022-08-05 ミサワホーム株式会社 建材、及び外構部材への潅水制御システム

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JP5280703B2 (ja) * 2008-02-20 2013-09-04 住友林業株式会社 建物
JP5410112B2 (ja) * 2009-02-19 2014-02-05 ミサワホーム株式会社 建物の換気構造
JP5701583B2 (ja) * 2010-11-26 2015-04-15 株式会社リトルバード 空調システム
JP5710954B2 (ja) * 2010-12-10 2015-04-30 ミサワホーム株式会社 通風経路選出システム
JP2012184862A (ja) * 2011-03-03 2012-09-27 Toyota Home Kk 建物
JP2012251731A (ja) * 2011-06-03 2012-12-20 Sumitomo Forestry Co Ltd 空調システム
JP5967918B2 (ja) * 2011-12-15 2016-08-10 トヨタホーム株式会社 住環境管理システム

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US5862981A (en) * 1997-08-04 1999-01-26 Yiue Feng Enterprise Co., Ltd. Ventilation control device for a bathroom
US20060172687A1 (en) * 2003-01-31 2006-08-03 Vroege Norbert P Ventilation system
US20080042859A1 (en) * 2006-08-10 2008-02-21 Dufour Jennifer E Ventilation control device
US20120184197A1 (en) * 2011-01-13 2012-07-19 Ford Global Technologies, Llc Ventilation control device for a motor vehicle

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