WO2022097259A1 - 空調システム - Google Patents

空調システム Download PDF

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Publication number
WO2022097259A1
WO2022097259A1 PCT/JP2020/041476 JP2020041476W WO2022097259A1 WO 2022097259 A1 WO2022097259 A1 WO 2022097259A1 JP 2020041476 W JP2020041476 W JP 2020041476W WO 2022097259 A1 WO2022097259 A1 WO 2022097259A1
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WO
WIPO (PCT)
Prior art keywords
area
setting
air conditioning
people
local
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Application number
PCT/JP2020/041476
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English (en)
French (fr)
Japanese (ja)
Inventor
雅幸 岡本
昌幸 赤津
憲治 大塚
Original Assignee
株式会社日立製作所
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
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Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to CN202080105088.7A priority Critical patent/CN116648583A/zh
Priority to JP2022560589A priority patent/JP7437531B2/ja
Priority to US18/026,714 priority patent/US20230341143A1/en
Priority to PCT/JP2020/041476 priority patent/WO2022097259A1/ja
Publication of WO2022097259A1 publication Critical patent/WO2022097259A1/ja

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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
    • F24F11/30—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
    • F24F11/62—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
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F24F2120/12—Position of occupants

Definitions

  • the present invention relates to an air conditioning system.
  • air conditioning air conditioning
  • system settings Such air conditioning settings collectively performed by the administrator are called “system settings”.
  • Patent Document 1 describes an air conditioner that appropriately distributes the refrigerant supplied to a plurality of user-side heat exchangers according to the number of people in the room.
  • comfortable air conditioning settings often differ depending on the location of the area in the building, the size of the area, and the type of area. Moreover, even if the optimum air conditioning setting is made for the area at a certain point, whether or not the area is comfortable depends on the person. Therefore, a person in the area may temporarily change the room temperature or the like set by the management center by operating an air conditioning changing device (remote controller or the like) that can change only the air conditioning setting in this area.
  • the air conditioning setting changed by the person in the area in this way is called "local setting".
  • Patent Document 1 merely asks for the number of people in the room, and does not solve the problem that the local setting is not returned to the original system setting after a person leaves the area.
  • the air-conditioning system controls the operation of the air-conditioning device to air-condition the inside of the area.
  • This air-conditioning system has a local setting reception unit that accepts local settings changed from the specified system settings by a local setting terminal that allows area users to set air conditioning in the area, and the number of people in the area that detects the number of people in the area.
  • the detection unit and the instruction to maintain the local setting accepted by the local setting reception unit are output to the air conditioning control system until the elapsed time from the time when the local setting is changed in the area reaches the predetermined setting time.
  • the air conditioning control instruction unit outputs an instruction to return to the system setting set based on at least one of the number of people detected by the number of people in the area and the area type to the air conditioning control system. And.
  • the elapsed time exceeds the set time after the area is changed to the local setting, it is set according to the number of people detected by the number of people detection unit in the area and at least one of the area types. You will be returned to the system settings. Therefore, the air conditioning that is comfortable for the users of the area will be performed. Issues, configurations and effects other than those described above will be clarified by the following description of the embodiments.
  • FIG. 1 is a diagram showing a state of an area where an air conditioner is installed.
  • the floor 10 is provided with four areas 11 to 14. Areas 11 to 13 are arranged side by side in order.
  • the area 14 is provided with a passageway separated from the areas 11 to 13. Areas 11 to 14 are, for example, a conference room and an office, and a plurality of people enter the room and leave the room after a predetermined time.
  • Areas 11 to 14 are provided with one or more air conditioners.
  • An air conditioner 70 (1) is provided in the area 11.
  • the air conditioner 70 (1) air-conditions by changing the temperature and humidity in the area 11.
  • air conditioners 70 (2) to 70 (5) are provided in areas 12 to 14 to air-condition each area.
  • cameras 20 (1) to 20 (4) are provided in each room.
  • the air conditioners 70 (1) to 70 (5) are not distinguished, they are referred to as an air conditioner 70.
  • the number of cameras 20 and the number of air conditioners 70 do not always match.
  • the air conditioner 70 (1) is provided with an environment sensor 72 (1) that detects environmental information including at least one of temperature and humidity in the area 11.
  • the air conditioners 70 (2) to 70 (5) are provided with environment sensors 72 (2) to 72 (5), respectively.
  • environment sensors 72 when the environment sensors 72 (1) to 72 (5) are not distinguished, they are referred to as environment sensors 72.
  • the environment sensor 72 is used as an example of a sensor that measures at least one environmental information of temperature and humidity in the area.
  • the environmental data generated by the environmental sensor 72 is used as an example of the sensor data. In FIG.
  • the environment sensor 72 is provided inside the air conditioner 70 , but if the environment sensor 72 is provided outside the air conditioner 70 as long as it is in the area where the air conditioner 70 is installed, the environment sensor 72 may be provided outside the air conditioner 70. good.
  • a local setting terminal 71 (1) capable of changing the air conditioning setting of the air conditioner 70 (1) is provided in the area 11.
  • the areas 12 to 14 are provided with local setting terminals 71 (2) to 71 (5) capable of changing the air conditioning settings of the air conditioners 70 (2) to 70 (5), respectively.
  • the local setting terminal 71 is a remote controller that can change the temperature and humidity settings for each area by a person who enters each area, and changes the system settings to the local settings from a remote location with respect to the air conditioner 70. Can be done.
  • the locally set data including the temperature and humidity locally set by the local setting terminal 71 are transmitted to the AI (Artificial Intelligence) air conditioning system 40 shown in FIG. 2, which will be described later, through the wireless device 21.
  • AI Artificial Intelligence
  • Cameras 20 (1) to 20 (4) are provided in areas 11 to 14, respectively.
  • the camera 20 (1) photographs the inside of the area 11.
  • the cameras 20 (2) to 20 (4) take pictures in the areas 12, 13 and 14, respectively.
  • the cameras 20 (1) to 20 (4) are not distinguished in the following description, they are referred to as cameras 20.
  • the camera 20 that captures the inside of the area is used as an example of the sensor. Further, the image data generated by the camera 20 is used as an example of the sensor data.
  • wireless devices 21 (1) to 21 (4) are provided in areas 11 to 14.
  • the wireless device 21 (1) transmits the image data in the area taken by the camera 20 (1) to the AI air conditioning system 40 shown in FIG. 2, which will be described later.
  • the wireless devices 21 (2) to 21 (4) the image data in the area captured by the cameras 20 (2) to 20 (4), respectively, is transmitted to the AI air conditioning system 40.
  • the wireless devices 21 (1) to 21 (4) are not distinguished, they are referred to as wireless devices 21.
  • FIG. 2 is a block diagram showing an overall configuration example of the air conditioning management system 1.
  • the air conditioning management system 1 includes n cameras 20, m air conditioning devices 70, an AI air conditioning system 40, a building air conditioning control system 50, and a system setting terminal 60.
  • the "n" representing the number of cameras 20 and the "m” representing the number of air conditioners 70 may be the same numerical value or different numerical values.
  • the air conditioner 70 (1) air-conditions the inside of the area based on the system setting or the local setting.
  • the air conditioner 70 (1) air-conditions the inside of the area during a period not locally set by the system setting transmitted from the building air-conditioning control system 50, for example, from the start time to the end time of the office.
  • the air conditioner 70 (1) has a local setting terminal 71 (1) and an environment sensor 72 (1).
  • the local setting terminal 71 (1) is used by the user of the area to set the air conditioning in the area.
  • the person who uses the local setting terminal 71 (1) is assumed to be a user who is in the room, but a communication terminal such as a smartphone is used to remotely connect to the local setting terminal 71 (1). It may be someone in another area.
  • the information of the air conditioning setting changed by the local setting terminal 71 (1) is transmitted to the AI air conditioning system 40.
  • the environment sensor 72 (1) detects the internal environment (for example, temperature, humidity) of the area air-conditioned by the air-conditioning device 70 (1), and transmits environmental data including the detected internal environment information to the AI air-conditioning system 40. ..
  • the local setting terminal 71 (m) and the environment sensor 72 (m) of the air conditioner 70 (m) also have the same functions as the local setting terminal 71 (1) and the environment sensor 72 (1), respectively.
  • the AI air-conditioning system 40 controls the operation of the air-conditioning device 70 in each area so that the inside of the area is appropriately air-conditioned according to the size of the area, the number of windows, the material of the wall, the type of the air-conditioning device 70, and the like. do. Therefore, the AI air-conditioning system 40 grasps the number of people in the area, the current temperature, and the humidity based on various data collected from the camera 20 and the air-conditioning device 70. Then, the AI air conditioning system 40 outputs an air conditioning instruction with an appropriate system setting to the building air conditioning control system 50 according to the number of people in the area.
  • the building air-conditioning control system 50 collectively sets the air-conditioning device 70 in each area based on the instruction based on the system setting input from the AI air-conditioning system 40. Further, the building air-conditioning control system 50 changes the local setting to the system setting after the set time (for example, 2 hours) for the area that is absent while being set locally. Furthermore, when many people enter the area from the outside, the AI air conditioning system 40 controls the cooling etc. according to the number of people who entered the area, but the people who entered the area entered from the outside. Insufficient cooling is due to the fact that it is not considered whether it is a person or a person who entered from another area indoors.
  • the building air conditioning control system 50 can maintain an appropriate temperature environment without interruption of a meeting or the like even if there are people in the area by changing from the local setting to the system setting after the set time.
  • the system setting terminal 60 is a terminal that registers system settings such as temperature and humidity in advance for the AI air conditioning system 40.
  • the system setting terminal 60 is, for example, a PC (Personal Computer) or the like, and is operated by the administrator of the air conditioning management system 1.
  • the system setting terminal 60 can set parameters of an area or a building, a target temperature, and the like through various setting functions shown in FIG. 9 to be described later.
  • the system settings (for example, system set temperature and system set humidity) are registered in the area setting table 44b shown in FIG. 6 to be described later. Further, the parameters of the area and the building are registered in the area information table 44a shown in FIG. 5 to be described later.
  • FIG. 3 is a block diagram showing an example of the internal configuration of the AI air conditioning system 40.
  • the AI air-conditioning system 40 is an example of an air-conditioning system that controls the operation of an air-conditioning device provided for each area to air-condition the inside of the area.
  • the AI air conditioning system 40 includes an area number detection unit 30, an area information acquisition unit 41, a local setting reception unit 42, a timer setting unit 43, an air conditioning database 44, a prediction unit 45, an air conditioning control instruction unit 46, a system setting reception unit 47, and a system setting reception unit 47.
  • a log information output unit 48 is provided.
  • the area information acquisition unit 41 acquires the area information input at the time of initial setting of the air conditioning management system 1 or at the time of changing the layout of the area.
  • the area information includes, for example, information on the size of the area, information on the characteristics of the air conditioner 70 attached to the area, and for example, a screen for setting various parameters shown in FIG. 9 to be described later is displayed. It is input through the system setting terminal 60.
  • the area information acquisition unit 41 writes the acquired area information in the area information table 44a of the air conditioning database 44 when the size and type of the area are changed.
  • the local setting receiving unit 42 is used as an example of the local setting receiving unit that receives the local setting changed from the specified system setting by the local setting terminal 71.
  • the local setting receiving unit 42 receives data including the temperature, humidity, etc. locally set by the local setting terminal 71.
  • the local setting receiving unit 42 writes the received local setting information in the area setting table 44b of the air conditioning database 44.
  • the timer setting unit 43 sets a set time, which is the time for maintaining the local setting after the air conditioner 70 is changed from the system setting to the local setting.
  • the local setting receiving unit 42 writes the local setting information to the area setting table 44b
  • the current time measured by the timer setting unit 43 and the set time are written to the setting start time and the set time items of the area setting table 44b. Is done.
  • the set time has priority and is written in the item of the set time in the area setting table 44b.
  • This set time is preset by the system setting terminal 60 while the system setting receiving unit 47 is running, or is set by the local setting terminal 71 while the local setting receiving unit 42 is running.
  • the number of people in the area detection unit 30 detects the number of people in the area. Therefore, the number of people detection unit 30 in the area includes a sensor data acquisition unit 31 and a sensor data analysis unit 32.
  • the sensor data acquisition unit 31 acquires sensor data output by a sensor provided in the area, for example, every minute or at a preset frequency. Then, the sensor data acquisition unit 31 outputs the sensor data to the sensor data analysis unit 32.
  • the sensor data includes, for example, image data in the area taken by the camera 20 and temperature and humidity data in the area detected by the environment sensor 72.
  • the sensor data analysis unit 32 is used as an example of an area number detection unit that detects the number of people in the area.
  • the sensor data analysis unit 32 can obtain the number of people in the area by using the sensor data input from the sensor data acquisition unit 31. For example, the sensor data analysis unit 32 obtains the number of people in the area based on the image data. Further, the sensor data analysis unit 32 can also obtain the number of people in the area based on the environmental data. Then, the sensor data analysis unit 32 registers the analyzed sensor data in the sensor data registration table 44c.
  • the sensor data analysis unit 32 can analyze image data or environmental data by itself to obtain the number of people in the area. Further, the sensor data analysis unit 32 may obtain the number of people in the area by transferring image data or environment data to an external data analysis system and acquiring analysis results from the external data analysis system.
  • the air conditioning database 44 includes an area information table 44a, an area setting table 44b, and a sensor data registration table 44c. Details of the configuration of each table will be described with reference to FIGS. 5 to 7 described later.
  • the prediction unit 45 outputs a prediction result that predicts a change in at least one of the temperature and the number of people in the area after a predetermined time elapses, based on the number of people in the area obtained by the sensor data analysis unit 32.
  • the prediction unit 45 predicts a change in at least one of the temperature and the number of people in the area after a predetermined time elapses, based on the scheduler for each area, the area information table 44a, and the sensor data registration table 44c.
  • the prediction unit 45 accesses an external system having a scheduler function and uses each area from this external system.
  • the prediction unit 45 can obtain a highly accurate prediction result based on the accurate usage time and the number of users in the area. For example, when a meeting is scheduled in a certain area, the prediction unit 45 accurately predicts the number of people in the area and the temperature in the area from the start time to the end time of the meeting held in this area. can do. Then, the prediction unit 45 outputs the prediction result (for example, the predicted temperature and the predicted number of people) to the air conditioning control instruction unit 46. Further, the prediction unit 45 writes the prediction result in the sensor data registration table 44c.
  • the air-conditioning control instruction unit 46 gives an instruction to maintain the local setting received by the local setting reception unit 42 until the elapsed time from the time when the local setting is changed in the area reaches a predetermined set time. Output to system 50. Then, when the elapsed time exceeds the set time, the air conditioning control instruction unit 46 gives an instruction to return to the system setting set based on at least one of the number of people and the area type detected by the sensor data analysis unit 32. Output to the air conditioning control system 50. At this time, the air conditioning control instruction unit 46 outputs an air conditioning control instruction to the building air conditioning control system 50 based on the prediction result input from the prediction unit 45. For example, if the number of people in the area (also referred to as “the number of people in the room”) increases, the air conditioning control instruction unit 46 outputs an instruction to lower the temperature in the area in advance.
  • the air conditioning control instruction unit 46 outputs to the building air conditioning control system 50 a comparison between the elapsed time and the set time, an instruction for maintaining the local setting, or an instruction for returning from the local setting to the system setting, based on the area setting table 44b. do. Further, the air conditioning control instruction unit 46 changes the system setting based on the prediction result obtained from the prediction unit 45, and outputs an instruction to maintain the system setting or an instruction to return to the system setting to the building air conditioning control system 50.
  • the system setting receiving unit 47 is used as an example of a system setting receiving unit that receives system settings preset for each area input from the system setting terminal 60 and writes the received system settings to the area setting table 44b for each area. Be done. For example, the system setting receiving unit 47 updates the corresponding items in the area information table 44a and the area setting table 44b based on the received system settings.
  • the air conditioning control instruction unit 46 outputs system setting instructions for each of a plurality of areas based on the area setting table 44b.
  • the log information output unit 48 outputs the log information extracted from the sensor data registration table 44c to the system setting terminal 60.
  • the administrator can operate the system setting terminal 60 to check the log information.
  • FIG. 4 is a block diagram showing a hardware configuration example of the computer 90.
  • the computer 90 is, for example, an example of hardware used as a computer that can operate as the AI air conditioning system 40 according to the present embodiment.
  • the AI air-conditioning system 40 according to the present embodiment realizes an air-conditioning management method in which the functional blocks shown in FIG. 3 cooperate with each other by executing a program by a computer 90 (computer).
  • the computer 90 includes a CPU (Central Processing Unit) 91, a ROM (Read Only Memory) 92, and a RAM (Random Access Memory) 93, which are connected to the bus 94, respectively. Further, the computer 90 includes a non-volatile storage 95 and a network interface 96.
  • CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the CPU 91 reads the program code of the software that realizes each function according to the present embodiment from the ROM 92, loads it into the RAM 93, and executes it. Variables and parameters generated during the arithmetic processing of the CPU 91 are temporarily written in the RAM 93, and these variables and parameters are appropriately read out by the CPU 91.
  • an MPU Micro Processing Unit
  • the functions of the sensor data analysis unit 32, the prediction unit 45, and the air conditioning control instruction unit 46 are realized by the CPU 91.
  • non-volatile storage 95 for example, HDD (Hard Disk Drive), SSD (Solid State Drive), flexible disk, optical disk, optical magnetic disk, CD-ROM, CD-R, magnetic tape, non-volatile memory and the like are used. Be done.
  • OS Operating System
  • a program for operating the computer 90 is recorded.
  • the ROM 92 and the non-volatile storage 95 record programs, data, and the like necessary for the CPU 91 to operate, and as an example of a computer-readable non-transient storage medium that stores a program executed by the computer 90. Used.
  • the function of the air conditioning database 44 is realized by the non-volatile storage 95.
  • a NIC Network Interface Card
  • various data can be transmitted and received between devices via a LAN (Local Area Network) connected to a terminal of the NIC, a dedicated line, or the like. It is possible.
  • the functions of the area information acquisition unit 41, the local setting reception unit 42, the sensor data acquisition unit 31, and the system setting reception unit 47 are realized by the network interface 96.
  • the system setting terminal 60 includes a display device 61 and an input device 62.
  • the system setting terminal 60 is one of the terminals connected to the network interface 96.
  • the display device 61 is, for example, a liquid crystal display monitor, and displays the result of processing performed by the computer 90 to the system administrator. For example, the log information output by the log information output unit 48 is displayed on the display device 61. Further, a screen for setting various parameters shown in FIG. 9, which will be described later, is displayed on the display device 61.
  • the input device 62 For example, a keyboard, a mouse, or the like is used as the input device 62, and the system administrator can perform predetermined operation inputs and instructions. As described above, the system setting is information input through the input device 62.
  • FIG. 5 is a diagram showing a configuration example of the area information table 44a.
  • area information including at least the type of the area and the position of the area in the building is defined for each area.
  • the area information table 44a has fields for area, building, floor, section, type, and number of people.
  • the area name with a code for identifying each area is stored in the name of the office room, the conference room, the drawing room, etc. indicating the type of the area as the air-conditioned area.
  • the building name of the building having the air-conditioned area is stored in the building field.
  • the partition field stores the partition name that identifies the partition within the floor where the air-conditioned area is set.
  • the type field for example, the type of the area such as internal use, external use, and executive use is stored.
  • the number of people field can accommodate the number of people (capacity) for each area. Even in areas of the same size, the number of people that can be accommodated may change depending on the type of area. For example, in an area used as an office, 6 users may be present, but in an area used as a drawing room, only 4 people may be present.
  • a field indicating the size of the area [m 2 ] may be provided.
  • the area information table 44a is a table in which information is stored in advance by the area information acquisition unit 41.
  • the area information table 44a is used as a master for each table.
  • the area information table 44a may be provided with a field in which the system setting terminal 60 stores information (ceiling height, direction, wall material, etc.) set through various setting functions shown in FIG. 9, which will be described later. ..
  • FIG. 6 is a diagram showing a configuration example of the area setting table 44b.
  • the area setting table 44b the system settings specified by the air conditioning control instruction unit 46 for each area, the local settings changed by the local setting terminal 71 in the area, and the times when the local settings are made in the area are shown.
  • the set time is specified for each area.
  • Environmental information such as temperature and humidity in the area is defined in the area setting table 44b, and the air conditioning control instruction unit 46 controls the temperature, humidity and the like in the area according to this environmental information.
  • the area setting table 44b has fields of area, system set temperature, system set humidity, local set temperature, local set humidity, setting start time, and set time.
  • the contents of the area field are as described in the area information table 44a.
  • the system set temperature [° C.] set from the system setting terminal 60 is stored in the system set temperature field.
  • the system set humidity [%] set from the system setting terminal 60 is stored in the system set humidity field.
  • the local set temperature [° C.] set from the local set terminal 71 is stored in the local set temperature field.
  • the locally set humidity [%] set from the local setting terminal 71 is stored.
  • the setting start time field the time when the locally set temperature and humidity are set by the local setting terminal 71 is stored as the setting start time.
  • the set time field stores the time during which air conditioning is maintained at the locally set temperature and humidity from the set start time.
  • the system set temperature is 27 ° C.
  • a person who enters the conference room 1 operates the local setting terminal 71 to change the local set temperature to 25 ° C.
  • the set time is 2 hours
  • the inside of the conference room 1 is air-conditioned at the local set temperature of 25 ° C. from 10 o'clock, which is the set start time, to 2 hours, which is the set time.
  • the temperature inside the conference room 1 is returned to the system set temperature.
  • FIG. 7 is a diagram showing a configuration example of the sensor data registration table 44c.
  • the sensor data registration table 44c stores the predicted temperature and the predicted number of people predicted by the prediction unit 45 according to the current time. Information acquired from the sensor data, the number of people in the area, and the prediction result are registered in the sensor data registration table 44c.
  • the sensor data registration table 44c has fields of area, temperature, humidity, number of people, predicted temperature, and predicted number of people.
  • the contents of the area field are as described in the area information table 44a.
  • the temperature field has a subfield separated by hours, and the temperature of each hour is stored in the subfield. For example, in the temperature field, in the 9 o'clock subfield, it is shown that the temperature in office 1 was 28 ° C. Further, from the subfields at 10 o'clock and 11 o'clock, it can be seen that the temperature of the office 1 was constant at 28 ° C.
  • the humidity field has a subfield divided by time, and the humidity of each hour is stored in the subfield. For example, in the humidity field, in the 9 o'clock subfield, it is shown that the temperature in office 1 was 65%. Also, from the subfields at 10:00 and 11:00, it can be seen that the humidity in the office 1 was constant at 65%.
  • the number of people field has a subfield divided by time, and the number of people in the room per hour is stored in the subfield. For example, in the number of people field, in the subfield at 9 o'clock, it is shown that the number of people in the office 1 was four. It is also shown that the number of people in the room was 10 at 10 o'clock and the number of people in the room was 12 at 11 o'clock.
  • the predicted temperature field stores the predicted temperature in the area predicted by the prediction unit 45 as the number of people in the room changes every hour. For example, if the predicted time is 11 o'clock, the temperature in the office 1 is predicted to be 28 ° C. at 13:00, which is a predetermined time (for example, 2 hours) later.
  • the predicted number of people field stores the predicted number of people in the area predicted by the prediction unit 45 as the number of people in the room changes every hour. For example, if the predicted time is 11:00, the predicted number of people in the office 1 is predicted to be 10 at 13:00, which is a predetermined time (for example, 2 hours) later.
  • FIG. 8 is a sequence diagram showing an example of the overall processing of the air conditioning management system 1. Here, processing is mainly performed by the local setting terminal 71 and the AI air conditioning system 40.
  • the sensor data analysis unit 32 of the AI air conditioning system 40 obtains the number of people in the area using the sensor data acquired by the sensor data acquisition unit 31 from the camera 20 or the environment sensor 72. Then, the prediction unit 45 outputs a prediction result that predicts the number of people in the room for each hour, the change in the room temperature in the area, and the like, and the air conditioning control instruction unit 46 instructs the building air conditioning control system 50 to control the air conditioning. Is output.
  • the air conditioning device 70 is controlled by the operation of the AI air conditioning system 40 (S11).
  • the local setting terminal 71 accepts a change in the air conditioning setting such as temperature (S1).
  • the local setting terminal 71 transmits the local setting information including the change of the received air conditioning setting to the AI air conditioning system 40 (S2).
  • the local setting receiving unit 42 of the AI air conditioning system 40 determines whether or not the local setting information has been received (S12). If the local setting receiving unit 42 has not received the local setting information (NO in S12), the process returns to step S11 and continues the process.
  • the local setting receiving unit 42 registers the received local setting information in the area setting table 44b (S13). At this time, at least one of the locally set temperature and the locally set humidity is registered in the area setting table 44b.
  • the local setting receiving unit 42 registers the local setting start time in the area setting table 44b (S14). At this time, the local setting receiving unit 42 also registers the set time in the area setting table 44b. This set time (for example, 2 hours) is registered in advance by the system setting terminal 60. However, when the set time is set through the local setting terminal 71, this set time is registered in the area setting table 44b. If the time set by the local setting terminal 71 is long (for example, 12 hours), the set time (for example, 2 hours) registered in advance by the system setting terminal 60 is registered in the area setting table 44b.
  • the air conditioning control instruction unit 46 monitors the elapsed time since the local setting was made based on the setting start time of the area setting table 44b (S15).
  • the elapsed time is calculated by subtracting the setting start time from the current time of the timer setting unit 43 acquired by the air conditioning control instruction unit 46 via the air conditioning database 44.
  • the air conditioning control instruction unit 46 determines whether or not the current time of the timer setting unit 43 acquired via the air conditioning database 44 has passed the local setting cancellation time (S16). At this time, the air conditioning control instruction unit 46 compares the elapsed time with the set time, and if the elapsed time exceeds the set time, determines that the current time has reached the local setting cancellation time. If the current time has not passed the local setting cancellation time (NO in S16), the process returns to step S15 and the monitoring of the elapsed time is continued.
  • the air conditioning control instruction unit 46 sends a message to the local setting terminal 71 indicating that the local setting has been completed (S17). Then, the air conditioning control instruction unit 46 outputs an instruction to return to the system setting to the building air conditioning control system 50. At this time, the air conditioning control instruction unit 46 acquires the system set temperature and humidity with reference to the area setting table 44b, and outputs the system set temperature and humidity information to the building air conditioning control system 50.
  • the local setting terminal 71 displays the system setting based on the message received from the air conditioning control instruction unit 46 (S3). At this time, the local setting terminal 71 notifies that the air conditioning setting in the area has returned from the local setting to the system setting.
  • FIG. 9 is a diagram showing a display example of the setting functions 81 to 84.
  • a list of setting functions is displayed by a function number and a function name.
  • the details of each function can be set by the administrator from the screen displayed in a predetermined format.
  • the fields of the target equipment and the target building are used as the primary key of each setting function.
  • the setting function 81 is used by the system administrator to set the control parameters of the target equipment.
  • the target equipment represents, for example, an area in a building.
  • Equipment control parameters include target equipment, control type (temperature, air volume, etc.), day of day, control start time, control end time, data acquisition / command interval, air conditioning equipment of target equipment, air conditioning control type, ceiling height, number of windows, direction. , Top floor, wall material, outside air, spare fields, etc.
  • the day of the week (Monday to Friday) containing "1" represents the day of the week for which air conditioning is controlled
  • the day of the week (Saturday, Sunday) containing "0" represents the day of the week for which air conditioning is not controlled.
  • the data acquisition / instruction interval is, for example, every 10 minutes.
  • PAC Package Air Conditioner
  • FCU Fluorescence Unit
  • Prescribed information is stored for each area in fields such as ceiling height, number of windows, direction, top floor, wall material, whether outside air enters, or spare. Since the rate of temperature rise in the area differs depending on the size of the area, windows installed in the area, etc., such information is set as a control parameter.
  • the setting function 82 is used by the system administrator to set the control parameters of the target building.
  • the target building represents, for example, the entire building.
  • the field of the equipment (building) control parameter is almost the same as the field of the equipment control parameter shown in the setting function 81, except that there is no field of the air conditioning equipment of the target equipment.
  • the setting function 83 is used by the system administrator to set the target temperature of the target equipment.
  • the setting fields include the target equipment and the target temperature.
  • the target temperature represents the system set temperature (see FIG. 6) in the target equipment.
  • the target temperature is set in the system for each target equipment.
  • the target humidity may be set in the system.
  • the setting function 84 is used by the system administrator to set the target temperature of the target building.
  • the setting fields include the target building and the target temperature.
  • the target temperature represents the system set temperature (see FIG. 6) in the target building.
  • the target temperature is set in the system for each target building.
  • the target humidity may be set in the system.
  • the system is set after the set time elapses even after the user leaves the area in the state of being locally set and air-conditioned by the local setting terminal 71.
  • the area is air-conditioned by setting. Therefore, it is possible to reduce the extra power consumption of the air conditioner.
  • the air conditioning in the area is set by the system, the area is kept in a comfortable state to some extent for other users who enter the area later. When another user who enters the area later wants to lower or raise the temperature in the area, the other user may set the air conditioning in the area locally using the local setting terminal 71.
  • the system setting can be changed by the air conditioning control instruction unit 46 depending on the number of users in the area predicted by the prediction unit 45. For example, if the estimated number of people in the area is larger than the capacity in the area, the temperature will be lowered, and if the outside temperature of the building is low, the temperature will be raised. Therefore, in many cases, users in the area can spend comfortably without making local settings.
  • the number of people in the area detection unit 30 detects the number of people in the area based on the image data acquired from the camera 20 or the environmental data acquired from the environment sensor 72. Since the number of people in the area at the current time is accurately detected in this way, the prediction unit 45 obtains the number of people in the area after a predetermined time from the current time and the predicted temperature in the area, and registers them in the sensor data registration table 44c. can do. Then, the air-conditioning control instruction unit 46 can instruct the air-conditioning apparatus 70 in each area to perform air-conditioning with appropriate system settings for each hour with reference to the sensor data registration table 44c.
  • the present invention is not limited to the above-described embodiment, and it goes without saying that various other application examples and modifications can be taken as long as they do not deviate from the gist of the present invention described in the claims.
  • the above-described embodiment describes the configuration of the system in detail and concretely in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations.
  • the control lines and information lines indicate what is considered necessary for explanation, and do not necessarily indicate all the control lines and information lines in the product. In practice, it can be considered that almost all configurations are interconnected.
  • Air conditioning management system 11-14 ... Area, 20 ... Camera, 21 ... Wireless device, 30 ... Area number detection unit, 40 ... AI air conditioning system, 41 ... Area information acquisition unit, 42 ... Local setting receiver unit, 43 ... Timer setting unit, 44 ... Air conditioning database, 44a ... Area information table, 44b ... Area setting table, 44c ... Sensor data registration table, 45 ... Prediction unit, 46 ... Air conditioning control instruction unit, 47 ... System setting receiving unit, 48 ... Log information output unit, 50 ... Building air conditioning control system, 60 ... System setting terminal, 70 ... Air conditioning device, 71 ... Local setting terminal, 72 ... Environment sensor

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  • Combustion & Propulsion (AREA)
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PCT/JP2020/041476 2020-11-06 2020-11-06 空調システム WO2022097259A1 (ja)

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JP2022560589A JP7437531B2 (ja) 2020-11-06 2020-11-06 空調システム
US18/026,714 US20230341143A1 (en) 2020-11-06 2020-11-06 Air-Conditioning System
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