WO2019175946A1 - Système de climatisation - Google Patents

Système de climatisation Download PDF

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Publication number
WO2019175946A1
WO2019175946A1 PCT/JP2018/009593 JP2018009593W WO2019175946A1 WO 2019175946 A1 WO2019175946 A1 WO 2019175946A1 JP 2018009593 W JP2018009593 W JP 2018009593W WO 2019175946 A1 WO2019175946 A1 WO 2019175946A1
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WO
WIPO (PCT)
Prior art keywords
indoor
unit
sensor
temperature
indoor unit
Prior art date
Application number
PCT/JP2018/009593
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English (en)
Japanese (ja)
Inventor
正史 芦野
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2018/009593 priority Critical patent/WO2019175946A1/fr
Priority to JP2020505582A priority patent/JP6865891B2/ja
Publication of WO2019175946A1 publication Critical patent/WO2019175946A1/fr

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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
    • F24F11/32—Responding to malfunctions or emergencies
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis

Definitions

  • the present invention relates to an air conditioning system including a plurality of indoor devices.
  • Patent Document 1 discloses an abnormality of a temperature sensor of an indoor unit in a multi-type air conditioner in which a plurality of indoor unit units are connected to one outdoor unit.
  • the average value, maximum value, or minimum value of the temperature detected by the temperature sensor of another indoor unit with a normal temperature sensor is used as the detected temperature of the indoor unit where the temperature sensor abnormality is detected. It is disclosed.
  • This invention is made in view of the above, Comprising: Even when a sensor will be in an abnormal state, the air conditioning system which can perform emergency operation according to the state of the space of the detection target of this sensor is obtained. For the purpose.
  • an air conditioning system includes a plurality of indoor devices that are arranged in a building and perform indoor air conditioning and can communicate with each other. It is.
  • the 1st indoor unit of a plurality of indoor units is provided with the 1st sensor which detects the 1st state value for controlling the air harmony operation of the 1st indoor unit.
  • the second indoor device other than the first indoor device among the plurality of indoor devices includes a second sensor that detects a second state value for controlling the air conditioning operation of the second indoor device.
  • the difference calculation unit that calculates the difference between the detection value of the first sensor and the detection value of the normal second sensor, and the first sensor become abnormal
  • an estimation unit that calculates an estimated detection value of the first state value using the detected value of the normal second sensor and the difference.
  • the air conditioning system includes an operation control unit that controls the operation of the first indoor device based on the estimated detection value.
  • the air conditioning system according to the present invention has an effect that even if the sensor is in an abnormal state, an emergency operation according to the state of the space to be detected by the sensor is possible.
  • FIG. 1 is a schematic diagram showing a configuration of an air-conditioning system according to Embodiment 1 of the present invention.
  • the schematic diagram which shows the structure of the indoor unit concerning Embodiment 1 of this invention.
  • the figure which shows an example of the hardware constitutions of the processing circuit in Embodiment 1 of this invention The schematic diagram which shows the structure of the ventilation apparatus concerning Embodiment 1 of this invention.
  • stored in a non-volatile memory and other apparatuses in Embodiment 2 of this invention The figure which shows an example of the estimated detection temperature when the indoor temperature sensor mounted in the indoor unit in Embodiment 2 of this invention becomes abnormal.
  • FIG. 1 is a schematic diagram illustrating a configuration of an air-conditioning system 100 according to Embodiment 1 of the present invention.
  • the air-conditioning system 100 according to the first embodiment is an air-conditioning system that includes a plurality of indoor devices that are arranged in a building and perform indoor air conditioning and can communicate with each other.
  • the air conditioning system 100 includes a multi-type air conditioner having a configuration in which a plurality of indoor units 4 are provided for one outdoor unit 3, and a plurality of ventilation devices 5. That is, the air conditioning system 100 includes a plurality of indoor units 4 and a plurality of ventilation devices 5 as a plurality of indoor devices.
  • an air conditioning system 100 includes an outdoor unit 3 installed outdoors, a plurality of indoor units 4a, 4b,..., 4n installed indoors, and a plurality of ventilation devices 5a installed in a building. , 5m, indoor unit remote controllers 6a, 6b,..., 6n, ventilator remote controllers 7a,.
  • indoor units 4a, 4b,..., 4n when the indoor units 4a, 4b,..., 4n are not individually distinguished, they are simply referred to as indoor units 4.
  • the ventilation devices 5a,..., 5m are not individually distinguished, they are simply referred to as a ventilation device 5.
  • the indoor unit remote controllers 6a, 6b,..., 6n are not individually distinguished, they are simply referred to as remote controllers 6.
  • the remote controller 7a, ..., 7m for ventilation apparatuses it is only called the remote controller 7.
  • the remote controller may be referred to as a remote controller.
  • the outdoor unit 3 and the plurality of indoor units 4a, 4b, ..., 4n constitute a multi-type air conditioner.
  • the indoor unit 4 and the ventilation device 5 constitute an indoor device.
  • the indoor unit 4 and the ventilation device 5 are examples of the indoor device, and the indoor device is not limited to this.
  • the outdoor unit 3 and the indoor unit 4 are connected to each other by a refrigerant pipe 1 through a branch unit 9 that switches a refrigerant flow direction.
  • the ventilation device 5 does not have a temperature adjustment function, the refrigerant pipe 1 is not connected.
  • the outdoor unit 3, the indoor unit 4, the ventilation device 5, and the central monitoring device 8 are connected to each other via the communication line 2, and can communicate with each other.
  • the outdoor unit 3 and each indoor unit 4 constitute an air conditioner that forms a complete refrigeration cycle with the outdoor unit 3 and the indoor unit 4.
  • the plurality of indoor units 4 are connected to the outdoor unit 3 in parallel.
  • the air conditioner uses a refrigerant that circulates between the indoor unit 4 and the outdoor unit 3 through the refrigerant pipe 1 to perform heat transfer between indoor air and outdoor air that are air-conditioning target spaces. Air conditioning for the room is realized. That is, the indoor unit 4 and the outdoor unit 3 are connected by the refrigerant pipe 1, and the pressure of the refrigerant flowing in the refrigerant pipe 1 is changed by the compressor provided in the outdoor unit 3, thereby adjusting the air conditioning by heat absorption and heat dissipation of the refrigerant. Do.
  • the indoor unit 4 and the remote controller 6 are capable of wired communication via the communication line 21.
  • the remote controller 6 can accept operations such as an operation request operation or stop request operation of the indoor unit 4, a heating request operation or cooling request operation of the indoor unit 4, and a wind speed setting operation of the indoor unit 4 from the user.
  • the remote controller 6 can display, for example, the operating state of the indoor unit 4 and the detected value by the indoor temperature sensor mounted on the indoor unit 4.
  • the remote controller 6 issues a command for operating or stopping the indoor unit 4, a command for causing the air conditioner to perform a heating operation or a cooling operation, a command for setting the wind speed of the airflow blown from the indoor unit 4, and the like. It can be transmitted to the indoor unit 4. Further, the remote controller 6 can receive the detection result from the indoor temperature sensor mounted on the indoor unit 4 from the indoor unit 4. Note that the indoor unit 4 and the remote controller 6 may be capable of wireless communication.
  • the ventilator 5 and the remote controller 7 can communicate with each other via a communication line 71.
  • the remote controller 7 can accept operations such as an operation request operation or a stop request operation of the ventilator 5 and an operation for requesting a setting of the ventilation air volume of the ventilator 5 from the user.
  • the remote controller 7 is based on, for example, the operating state of the ventilator 5, an outside air temperature sensor, an indoor temperature sensor, an outside air humidity sensor, and an indoor carbon dioxide (CO 2 ) sensor that detects the indoor carbon dioxide concentration. The detection result can be displayed.
  • the remote controller 7 can transmit a command for operating or stopping the ventilator 5, a command for setting the ventilation air volume of the ventilator 5, and the like to the ventilator 5.
  • the remote controller 7 can also receive detection results from the ventilator 5 such as an outside air temperature sensor, an indoor temperature sensor, an outside air humidity sensor, an indoor humidity sensor, and an indoor CO 2 sensor mounted on the ventilator 5.
  • the ventilator 5 and the remote controller 7 may be capable of wireless communication.
  • the indoor unit 4 When the indoor unit 4 receives the command transmitted from the remote controller 6 and the command transmitted from the central monitoring device 8, the indoor unit 4 includes operation setting information such as heating operation or cooling operation, wind speed setting information, temperature setting information, A command for controlling the outdoor unit 3 is generated based on information such as humidity setting information and temperature information of the temperature control target space, and the generated command is transmitted to the outdoor unit 3 via the communication line 2.
  • operation setting information such as heating operation or cooling operation, wind speed setting information, temperature setting information
  • a command for controlling the outdoor unit 3 is generated based on information such as humidity setting information and temperature information of the temperature control target space, and the generated command is transmitted to the outdoor unit 3 via the communication line 2.
  • the outdoor unit 3 controls a compressor (not shown) in the outdoor unit 3 based on a command received from the indoor unit 4 via the communication line 2 and supplies the indoor unit 4 via the refrigerant pipe 1 and the branch unit 9. Control the temperature or flow rate of the refrigerant.
  • the central monitoring device 8 can individually or collectively control the operation of the outdoor unit 3, the indoor unit 4, and the ventilation device 5 through the communication line 2, and can monitor the operation state.
  • the central monitoring device 8 includes a command for operating or stopping the indoor unit 4, a command for causing the air conditioner to perform a heating operation or a cooling operation, a command for setting a wind speed of an airflow blown from the indoor unit 4,
  • a command for operating or stopping the ventilation device 5 and a command for setting the ventilation air volume of the ventilation device 5 can be transmitted to the indoor unit 4 and the ventilation device 5.
  • the central monitoring device 8 can receive a detection result from an indoor temperature sensor (described later) mounted on the indoor unit 4 from the indoor unit 4.
  • the central monitoring device 8 can receive the detection results from the ventilator 5 such as an outside air temperature sensor, an indoor temperature sensor, an outside air humidity sensor, an indoor humidity sensor, and an indoor CO 2 sensor mounted on the ventilator 5. .
  • FIG. 2 is a schematic diagram showing the configuration of the indoor unit 4 according to the first embodiment of the present invention.
  • the indoor unit 4 includes a blower 11, an air conditioning coil 12, an indoor temperature sensor 13, and an indoor unit control device 20.
  • the indoor temperature sensor 13 is capable of wired communication with the indoor unit control device 20 via the sensor communication line 16.
  • the indoor temperature sensor 13 may be capable of wireless communication with the indoor unit control device 20.
  • the blower 11 sucks air 15 from the room, and circulates the air 15 so that the sucked air 15 passes through the air conditioning coil 12 and is supplied to the room.
  • the air conditioning coil 12 is connected to the outdoor unit 3 via the refrigerant pipe 1 and the branch unit 9.
  • the air conditioning coil 12 heats or cools the air 15 using the refrigerant supplied from the outdoor unit 3 through the refrigerant pipe 1 and the branch unit 9.
  • heating or cooling air is also referred to as temperature control.
  • the refrigerant pipe 1 connected to the air conditioning coil 12 is provided with an expansion valve 22 for adjusting the refrigerant flow rate.
  • the indoor temperature sensor 13 is a sensor that detects the temperature of the indoor air 15 that is a state value of the indoor air necessary for operation control of the indoor unit 4.
  • the indoor temperature sensor 13 detects the temperature of the indoor air 15 sucked by the blower 11 on the upstream side of the air conditioning coil 12.
  • the indoor temperature sensor 13 transmits information on the detected temperature detected to the indoor unit control unit 32 via a sensor detection unit 36 described later.
  • the indoor unit control device 20 controls the overall operation of the indoor unit 4.
  • the indoor unit control device 20 is capable of wired communication with the remote controller 6 via the communication line 21.
  • FIG. 3 is a diagram showing a main functional configuration of the indoor unit control device 20 according to the first embodiment of the present invention.
  • the indoor unit control device 20 includes a power supply circuit 31, an indoor unit control unit 32, a blower drive unit 33, a nonvolatile memory 34, an expansion valve drive unit 35, and a sensor detection unit 36.
  • the power supply circuit 31 is connected to a commercial power supply 30 outside the indoor unit control device 20.
  • the power supply circuit 31 generates dedicated power for driving each component of the indoor unit control device 20 from the power supplied from the commercial power supply 30.
  • the dedicated power generated by the power supply circuit 31 is supplied to each component of the indoor unit control device 20.
  • connection lines for supplying dedicated power from the power supply circuit 31 to each component of the indoor unit control device 20 are not shown.
  • the blower drive unit 33 is connected to the blower 11.
  • the blower drive unit 33 can perform multi-stage control of the blower capacity of the blower 11 based on a command output from the indoor unit control unit 32.
  • the air blower drive unit 33 can switch the air blowing capacity of the air blower 11 to three levels of weak, medium and strong.
  • the non-volatile memory 34 stores various information used for controlling the indoor unit 4 such as operation data for controlling the indoor unit 4 and temperature difference data with respect to temperature information of other indoor units 4 described later.
  • the nonvolatile memory 34 does not lose various stored information even when power supply from the commercial power supply 30 to the power supply circuit 31 is interrupted due to a power failure or the like.
  • the nonvolatile memory 34 stores information received from other devices, calculation results and determination results in the indoor unit control unit 32, as will be described later.
  • the expansion valve drive unit 35 is connected to the expansion valve 22.
  • the expansion valve drive unit 35 can control the expansion valve 22 to an open state or a closed state based on a command output from the indoor unit control unit 32. Further, the expansion valve drive unit 35 can control the degree of opening when the expansion valve 22 is open.
  • the sensor detection unit 36 can communicate with the room temperature sensor 13.
  • the sensor detection unit 36 receives information on the room temperature that is a detection result of the room temperature sensor 13 and transmits the information to the indoor unit control unit 32.
  • the function setting unit 37 transmits, for example, operation setting information when an abnormality of the indoor temperature sensor 13 is detected to the indoor unit control unit 32.
  • the remote control communication unit 38 can communicate with the remote control 6.
  • the remote controller communication unit 38 sets, for example, a command for operating or stopping the indoor unit 4, a command for heating or cooling the air conditioner, and a wind speed of the indoor unit 4 transmitted from the remote controller 6. For example, a command or the like is received and output to the indoor unit control unit 32.
  • the remote control communication unit 38 transmits various types of information that the indoor unit control unit 32 has to the remote control 6.
  • the remote controller communication unit 38 is, for example, operating state information indicating whether the indoor unit 4 is operating or stopped, operating mode information indicating whether the indoor unit 4 is heating or cooling, and the indoor unit
  • Various types of information such as wind speed information indicating the wind speed of the airflow blown out from 4 and room temperature information indicating the temperature detected by the indoor temperature sensor 13, are received from the indoor unit control unit 32 and transmitted to the remote controller 6.
  • the communication unit 39 is an apparatus other than the own indoor unit 4 in the air conditioning system 100, the outdoor unit 3, the other indoor unit 4 other than the own indoor unit 4, the ventilation device 5, the central monitoring device 8, and the communication line 2. Communication is possible.
  • the communication unit 39 includes, for example, a command for operating the indoor unit 4, a command for stopping the air conditioner, a command for operating the indoor unit 4 in a heating mode, a command for operating the indoor unit 4 in a cooling mode, and Various commands such as a command for setting the wind speed of the indoor unit 4 can be received from the central monitoring device 8 via the communication line 2.
  • the communication unit 39 is, for example, operating state information indicating whether the other indoor unit 4 is operating or stopped, and an operation indicating whether the other indoor unit 4 is performing a heating operation or a cooling operation.
  • Various information such as mode information, wind speed information indicating the wind speed of the airflow blown from the other indoor unit 4, and temperature information indicating the temperature measured by the other indoor temperature sensor 13 is received from the other indoor unit 4.
  • the communication unit 39 is mounted on the ventilation device 5, for example, operating state information indicating whether the ventilation device 5 is operating or stopped, the air volume information indicating the ventilation air volume at which the ventilation device 5 is operating, and the ventilation device 5.
  • Various types of information such as detection values detected by the sensors are received from the ventilation device 5.
  • the communication unit 39 transmits various types of information that the indoor unit control unit 32 has via the communication line 2.
  • the communication unit 39 includes, for example, operating state information indicating whether the indoor unit 4 is operating or stopped, operating mode information indicating whether the indoor unit 4 is performing heating operation or cooling operation, and the indoor unit 4
  • Various types of information such as wind speed information indicating the wind speed of the airflow blown out from the indoor unit and temperature information indicating the indoor temperature measured by the indoor temperature sensor 13 are received from the indoor unit control unit 32 and transmitted.
  • the indoor unit control unit 32 controls the overall operation of the indoor unit 4.
  • the indoor unit control unit 32 also operates the indoor unit 4 and the outdoor unit 3 based on a command received from the remote controller 6, a command received from the central monitoring device 8, a command stored in the nonvolatile memory 34, and the like.
  • the indoor unit control unit 32 receives, via the sensor detection unit 36, information on the detected temperature in the room detected by the indoor temperature sensor 13, that is, indoor temperature information indicating the temperature detected by the indoor temperature sensor 13.
  • the sensor detection unit 36 may calculate the detection temperature from the detection signal transmitted from the indoor temperature sensor 13 and transmit the calculated detection temperature to the indoor unit control unit 32.
  • the indoor unit control unit 32 may receive a detection signal transmitted from the indoor temperature sensor 13 via the sensor detection unit 36, and calculate the detection temperature from the received detection signal. Further, the indoor unit control unit 32 determines from the input value transmitted from the sensor detection unit 36 whether the indoor temperature sensor 13 has an abnormality due to disconnection or disconnection of wiring.
  • FIG. 4 is a diagram illustrating a functional configuration of the indoor unit control unit 32 according to the first embodiment of the present invention.
  • the indoor unit control unit 32 includes a difference calculation unit 41, an estimation unit 42, and an emergency operation control unit 43.
  • the difference calculation unit 41 is provided in the indoor temperature detected by the indoor temperature sensor 13 provided in the own device and in other indoor devices. The temperature difference between the room temperature detected by the normal room temperature sensor is calculated.
  • the estimation unit 42 detects the indoor temperature detected by the indoor temperature sensor provided in another indoor device in which the indoor temperature sensor 13 is normal. Then, using the temperature difference calculated by the difference calculation unit 41, an estimated indoor temperature that is an estimated detected value of the indoor temperature is calculated.
  • the estimated detected temperature is an estimated detected temperature that is estimated to be currently detected when it is assumed that the indoor temperature sensor 13 mounted on the indoor unit 4a is normal.
  • the difference calculation unit 41 uses the detection result detected by the sensor mounted on the own device and the normal sensor mounted on another indoor device. An operation for obtaining a difference between the detected result and the detected result is performed.
  • the difference between detection results is the difference between detection results of the same type of sensor.
  • the estimation unit 42 detects a detection result detected by a sensor mounted on another indoor device in which the sensor is normal. Then, from the difference between the detection results calculated by the difference calculation unit 41, an estimated detection value that is an estimated value of the detection result of the sensor mounted on the own apparatus in which the abnormality is detected is calculated.
  • the emergency operation control unit 43 controls the emergency operation of the indoor unit 4 based on the estimated detection value.
  • the operation control in the emergency operation control unit 43 is not limited to the emergency operation of the indoor unit 4. That is, the emergency operation control unit 43 is an operation control unit that can control the operation including the emergency time.
  • the indoor unit control unit 32 can be realized by a microcomputer. That is, the indoor unit control unit 32 is realized, for example, as a processing circuit having a hardware configuration illustrated in FIG.
  • FIG. 5 is a diagram illustrating an example of a hardware configuration of the processing circuit according to the first embodiment of the present invention.
  • the indoor unit control unit 32 is realized by the processor 101 executing a program stored in the memory 102.
  • a plurality of processors and a plurality of memories may cooperate to realize the above function.
  • a part of the functions of the indoor unit control unit 32 may be mounted as an electronic circuit, and the other parts may be realized using the processor 101 and the memory 102.
  • the processor 101 executes a program stored in the memory 102 for each of the blower drive unit 33, the expansion valve drive unit 35, the sensor detection unit 36, the function setting unit 37, the remote control communication unit 38, and the communication unit 39.
  • a plurality of processors and a plurality of memories cooperate to realize the functions of the blower drive unit 33, the expansion valve drive unit 35, the sensor detection unit 36, the function setting unit 37, the remote control communication unit 38, and the communication unit 39. May be.
  • a part of each function of the blower drive unit 33, the expansion valve drive unit 35, the sensor detection unit 36, the function setting unit 37, the remote control communication unit 38, and the communication unit 39 is mounted as an electronic circuit. The portion may be realized using the processor 101 and the memory 102.
  • one unit of the indoor unit control unit 32, the blower drive unit 33, the expansion valve drive unit 35, the sensor detection unit 36, the function setting unit 37, the remote control communication unit 38, and the communication unit 39 is realized.
  • the processor and the memory realize other components of the indoor unit control unit 32, the blower drive unit 33, the expansion valve drive unit 35, the sensor detection unit 36, the function setting unit 37, the remote control communication unit 38, and the communication unit 39.
  • the same processor and memory may be used, or another processor and memory may be used.
  • FIG. 6 is a schematic diagram showing the configuration of the ventilation device 5 according to the first embodiment of the present invention.
  • the ventilation device 5 is configured by incorporating a heat exchanger 52, an exhaust fan 53, and an air supply fan 54 into a main body box 51.
  • the supply blower 54 is disposed in the supply air passage 55 and forms a supply airflow that is an airflow that flows from the outdoor suction port 57 through the heat exchanger 52 to the indoor discharge port 58.
  • the exhaust fan 53 is disposed in the exhaust air passage 56 and forms an exhaust flow that is an air flow that flows from the indoor suction port 59 to the outdoor discharge port 60 through the heat exchanger 52.
  • the heat exchanger 52 performs air-to-air heat exchange between air in the supply airflow and air in the exhaust airflow.
  • duct piping is connected by an outside air duct 61.
  • duct piping is connected by an air supply side duct 62.
  • air supply side duct 62 From the indoor suction port 59 to the ventilation device 5, duct piping is connected by an indoor duct 63.
  • duct piping is connected by an exhaust side duct 64.
  • the outside air duct 61, the air supply side duct 62, the indoor side duct 63, and the exhaust side duct 64 have different distances depending on the position where the ventilation device 5 is installed.
  • the ventilation device 5 includes a ventilation control device 70.
  • the ventilation control device 70 is capable of wired communication with the remote controller 7 via the communication line 71.
  • the ventilation control device 70 controls the overall operation of the ventilation device 5.
  • the exhaust fan 53 and the air supply fan 54 are independently driven and controlled by the ventilation control device 70.
  • the operation and state confirmation of the ventilation device 5 can be performed from the remote controller 7 connected to the ventilation control device 70.
  • the ventilator 5 also includes an indoor temperature sensor 65 that detects the indoor temperature, an indoor humidity sensor 66 that detects the indoor humidity, and an indoor carbon dioxide (CO 2 ) sensor 67 that detects the indoor carbon dioxide concentration in the exhaust air passage 56.
  • the ventilation device 5 includes an outside air temperature sensor 68 that detects the outside air temperature and an outside air humidity sensor 69 that detects the outside air humidity in the supply air passage 55.
  • the indoor temperature sensor 65, the indoor humidity sensor 66, the indoor CO 2 sensor 67, the outdoor air temperature sensor 68, and the outdoor air humidity sensor 69 are capable of wired communication with the ventilation control device 70 via the sensor communication line 72.
  • the indoor temperature sensor 65, the indoor humidity sensor 66, the indoor CO 2 sensor 67, the outdoor air temperature sensor 68, the outdoor air humidity sensor 69, and the ventilation control device 70 may be capable of wireless communication.
  • the indoor temperature sensor 65 is a sensor that detects the temperature of indoor air that is a state value of indoor air necessary for operation control of the ventilation device 5.
  • the indoor temperature sensor 65 detects the temperature of the air in the exhaust flow upstream of the heat exchanger 52 to detect the indoor temperature.
  • the room temperature sensor 65 transmits information on the detected room temperature to the ventilator control unit 82 via the sensor detection unit 86 described later.
  • the indoor humidity sensor 66 is a sensor that detects the humidity of indoor air, which is a state value of indoor air necessary for operation control of the ventilation device 5.
  • the indoor humidity sensor 66 detects the humidity of the air in the exhaust stream upstream of the heat exchanger 52 to detect the indoor humidity.
  • the indoor humidity sensor 66 transmits information on the detected indoor humidity to the ventilator control unit 82 via the sensor detection unit 86 described later.
  • the indoor CO 2 sensor 67 is a sensor that detects the concentration of carbon dioxide in indoor air, which is a state value of indoor air necessary for operation control of the ventilation device 5.
  • the indoor CO 2 sensor 67 detects the concentration of carbon dioxide in the air in the exhaust stream upstream of the heat exchanger 52 to detect the indoor carbon dioxide concentration.
  • the indoor CO 2 sensor 67 transmits information on the detected indoor carbon dioxide concentration to the ventilator control unit 82 via the sensor detection unit 86 described later.
  • the outside air temperature sensor 68 is a sensor that detects the temperature of the outside air that is a state value of the outside air necessary for operation control of the ventilation device 5.
  • the outside air temperature sensor 68 detects the outside air temperature by detecting the temperature of the air in the supply air stream upstream of the heat exchanger 52.
  • the outside air temperature sensor 68 transmits information on the detected outside air temperature to the ventilator control unit 82 via the sensor detection unit 86 described later.
  • the outside air humidity sensor 69 is a sensor that detects the humidity of the outside air that is a state value of the outside air necessary for operation control of the ventilation device 5.
  • the outside air humidity sensor 69 detects the outside air humidity by detecting the humidity of the air in the supply airflow upstream of the heat exchanger 52.
  • the outside air humidity sensor 69 transmits information on the detected outside air humidity to the ventilator control unit 82 via the sensor detection unit 86 described later.
  • FIG. 7 is a diagram showing a main functional configuration of the ventilation control device 70 according to the first embodiment of the present invention.
  • the ventilation control device 70 includes a power supply circuit 81, a ventilation device control unit 82, an air supply fan drive unit 83, an exhaust fan drive unit 84, a nonvolatile memory 85, and sensor detection.
  • the power supply circuit 81 is connected to a commercial power supply 80 outside the ventilation control device 70.
  • the power supply circuit 81 generates a dedicated power supply for driving each component of the ventilation control device 70 from the power supply supplied from the commercial power supply 80.
  • the dedicated power generated by the power supply circuit 81 is supplied to each component in the ventilation control device 70.
  • connection lines for supplying dedicated power from the power supply circuit 81 to each component in the ventilation control device 70 are not shown.
  • the air supply fan drive unit 83 is connected to the air supply fan 54.
  • the air supply fan drive unit 83 controls the operation of the air supply fan 54 based on a command transmitted from the ventilator control unit 82.
  • the exhaust fan drive unit 84 is connected to the exhaust fan 53.
  • the exhaust blower drive unit 84 controls the operation of the exhaust blower 53 based on a command transmitted from the ventilator control unit 82.
  • the non-volatile memory 85 stores various information used for controlling the ventilator 5, such as operation data for controlling the ventilator 5 and data for estimating an estimated detected temperature described later.
  • the non-volatile memory 85 stores various information so as not to be lost even when power supply from the commercial power supply 80 to the power supply circuit 81 is interrupted due to a power failure or the like.
  • the nonvolatile memory 85 stores information received from other devices, calculation results and determination results in the ventilator control unit 82, as will be described later.
  • the sensor detection unit 86 can communicate with various sensors included in the ventilation device 5.
  • the sensor detection unit 86 is a detection result of various sensors included in the ventilation device 5, information on the detected value of the indoor temperature, information on the detected value of the indoor humidity, information on the detected value of the indoor carbon dioxide concentration, and detection of the outside air temperature.
  • Information such as information on the value and information on the detected value of the outside air humidity is received and transmitted to the ventilator control unit 82.
  • the remote controller communication unit 87 can communicate with the remote controller 7.
  • the remote controller communication unit 87 receives, for example, a command for operating or stopping the ventilator 5 and a command for setting the ventilation air volume of the ventilator 5 transmitted from the remote controller 7, and the ventilator controller 82.
  • the remote controller communication unit 87 transmits various types of information that the ventilator control unit 82 has to the remote controller 7.
  • the function setting unit 88 transmits operation setting information to the ventilator control unit 82 when, for example, an abnormality of various sensors included in the ventilator 5 is detected.
  • the communication unit 89 is a device other than the self-ventilating device 5 in the air conditioning system 100, and includes the outdoor unit 3, the indoor unit 4, the ventilating device 5 other than the self-ventilating device 5 and the central monitoring device 8, and the communication line 2. Communication is possible.
  • the communication unit 89 provides various commands such as a command for operating the ventilator 5, a command for stopping the ventilator 5, and a command for changing the ventilation air volume of the ventilator 5 to a strong air volume or a weak air volume. , And can be received from the central monitoring device 8 via the communication line 2.
  • the communication unit 89 includes, for example, operating state information indicating whether the indoor unit 4 is operating or stopped, operating mode information indicating whether the indoor unit 4 is performing heating operation or cooling operation, Various types of information such as wind speed information indicating the wind speed of the airflow blown out from the unit 4 and detection result information detected by various sensors mounted on the indoor unit 4 are received from the indoor unit 4.
  • the communication unit 89 also includes, for example, operating state information indicating whether the other ventilator 5 is operating or stopped, air volume information indicating the ventilation air volume in which the other ventilator 5 is operating, and other Various information such as detection results detected by various sensors mounted on the ventilator 5 is received from the other ventilators 5.
  • the communication unit 89 transmits various types of information that the ventilator control unit 82 has via the communication line 2.
  • the communication unit 89 includes, for example, operating state information indicating whether the ventilator 5 is operating or stopped, air volume information indicating the ventilation air volume at which the ventilator 5 is operating, and various sensors included in the ventilator 5. Information of the detected detection result is received from the ventilator control unit 82 and transmitted.
  • the ventilation device control unit 82 controls the entire operation of the ventilation device 5. Further, the ventilator control unit 82 is responsive to a command received from a component in the ventilation control device 70, a command received from the remote controller 7, a command received from the central monitoring device 8, a command stored in the nonvolatile memory 85, or the like. Based on this, the operation of the ventilation device 5 is controlled.
  • the ventilator control unit 82 outputs, for example, a drive command to the air supply fan drive unit 83 for driving the air supply fan 54 and an exhaust fan drive unit 84 for driving the exhaust fan 53.
  • the drive command is output.
  • the ventilator control unit 82 also includes information on detection results detected by various sensors mounted on the ventilator 5, that is, information on room temperature, information on indoor humidity, information on indoor carbon dioxide concentration, and outside air temperature. And information such as outside air humidity information are received via the sensor detector 86.
  • the sensor detection unit 86 calculates information such as the above-described room temperature information from detection signals transmitted from various sensors mounted on the ventilator 5, and transmits the calculated information to the ventilator control unit 82. May be.
  • the ventilator control unit 82 receives detection signals transmitted from various sensors mounted on the ventilator 5 via the sensor detection unit 86, and the indoor temperature information described above from the received detection signals. May be calculated. Further, the ventilator control unit 82 determines from the input value transmitted from the sensor detection unit 86 whether or not various sensors mounted on the ventilator 5 are abnormal due to disconnection or disconnection of wiring.
  • the ventilation device control unit 82 includes a difference calculation unit 91, an estimation unit 92, and an emergency operation control unit 93.
  • FIG. 8 is a diagram illustrating a functional configuration of the ventilation device control unit 82 according to the first embodiment of the present invention.
  • the difference calculation unit 91, the estimation unit 92, and the emergency operation control unit 93 will be described later.
  • the ventilation device control unit 82 can be realized by a microcomputer. That is, the ventilator control unit 82 is realized, for example, as a processing circuit having a hardware configuration illustrated in FIG. When the ventilator control unit 82 is realized by the processing circuit shown in FIG. 5, the ventilator control unit 82 is realized by the processor 101 executing a program stored in the memory 102. A plurality of processors and a plurality of memories may cooperate to realize the above function. Further, a part of the function of the ventilator control unit 82 may be mounted as an electronic circuit, and the other part may be realized using the processor 101 and the memory 102.
  • the processor 101 stores each of the air supply fan drive unit 83, the exhaust fan drive unit 84, the sensor detection unit 86, the remote controller communication unit 87, the function setting unit 88, and the communication unit 89 in the memory 102. It may be configured to be realized by executing the programmed program. In addition, a plurality of processors and a plurality of memories cooperate to supply the air supply fan drive unit 83, the exhaust fan drive unit 84, the sensor detection unit 86, the remote controller communication unit 87, the function setting unit 88, and the communication unit 89. The function may be realized.
  • the air supply fan drive unit 83 the exhaust fan drive unit 84, the sensor detection unit 86, the remote controller communication unit 87, the function setting unit 88, and the communication unit 89 are used as electronic circuits. It may be mounted and other parts may be realized using the processor 101 and the memory 102.
  • one component of the ventilator control unit 82, the air supply fan drive unit 83, the exhaust fan drive unit 84, the sensor detection unit 86, the remote controller communication unit 87, the function setting unit 88, and the communication unit 89 is a ventilation device control unit 82, an air supply fan drive unit 83, an exhaust fan drive unit 84, a sensor detection unit 86, a remote controller communication unit 87, a function setting unit 88, and a communication unit 89. May be the same as a processor and a memory that realize other components, or may be another processor and a memory.
  • FIG. 9 is a diagram showing an example of temperature difference information between the indoor unit 4a and other devices stored in the nonvolatile memory 34 according to the first embodiment of the present invention.
  • the indoor unit 4 a, the indoor unit 4 b, the indoor unit 4 c, the indoor unit 4 d, and the ventilation device 5 a are used indoors as devices constituting the indoor device of the air conditioning system 100. The case where it is arranged will be described.
  • the other devices in this case are devices other than the indoor unit 4a disposed indoors in the air conditioning system 100 when viewed from the indoor unit 4a, and include the indoor unit 4b, the indoor unit 4c, the indoor unit 4d, and the ventilation.
  • Device 5a The indoor unit 4b is the other device with device number 1
  • the indoor unit 4c is the other device with device number 2
  • the indoor unit 4d is the other device with device number 3
  • the ventilator 5a is the other device with device number 4.
  • the indoor unit control unit 32 of the indoor unit 4a includes sensor state information indicating whether the indoor temperature sensor 13 mounted on another device is normal or abnormal, and a detected temperature measured by the indoor temperature sensor mounted on the other device. Is received from other devices via the communication line 2 and the communication unit 39.
  • target devices can be arbitrarily selected, such as a device installed in the same room as the indoor unit 4a or a device installed in an environment similar to the environment where the indoor unit 4a is installed. May be.
  • An example of an environment similar to the environment in which the indoor unit 4a is installed is, for example, when the indoor unit 4a is installed in a room facing south in the building, and similarly facing south in the building. It is installed in the room.
  • any device may be selected from the central monitoring device 8.
  • another target device may be arbitrarily selected from the remote controller 6 or the function setting unit 37.
  • the information received by the indoor unit 4 a from the indoor unit 4 b with the device number 1 indicates that the sensor state of the indoor temperature sensor 13 of the indoor unit 4 b is “normal” and the temperature detected by the indoor temperature sensor 13 is “ 25.0 ° C. ”
  • the information received by the indoor unit 4a from the indoor unit 4c with the device number 2 indicates that the sensor state of the indoor temperature sensor 13 of the indoor unit 4c is “normal” and the temperature detected by the indoor temperature sensor 13 is “21.0 ° C.” .
  • the sensor state of the indoor temperature sensor 13 of the indoor unit 4d is “abnormal”, and the temperature detected by the indoor temperature sensor 13 is “80.0 ° C.”.
  • the sensor state of the indoor temperature sensor 65 of the ventilator 5a is “normal”, and the temperature detected by the indoor temperature sensor 65 is “23.5 ° C.”.
  • the detected temperature measured by the indoor temperature sensor 13 of the indoor unit 4a at this time, that is, the current indoor temperature in the room where the indoor unit 4a is arranged is 24.0 ° C.
  • the temperature difference of the detected temperature of the indoor temperature between the indoor unit 4a and the other device is that of the other device.
  • the temperature difference between the detected temperatures may be simply referred to as a temperature difference.
  • the difference between the detected temperatures is calculated by the difference calculation unit 41.
  • the temperature detected by the indoor temperature sensor 13 mounted on the indoor unit 4a may be simply referred to as the detected temperature of the indoor unit 4a.
  • a temperature detected by a room temperature sensor of another device may be simply referred to as a temperature detected by another device.
  • Detected temperature difference detected temperature of indoor unit 4a-detected temperature of other equipment (1)
  • the temperature difference in the detected temperature between the indoor unit 4a and the other device of the device number 3 is the difference calculation unit 41 because the sensor state of the indoor temperature sensor 13 mounted on the other device of the device number 3 is “abnormal”.
  • the calculation of the temperature difference between the detected temperatures is “impossible”.
  • the calculation of the temperature difference is periodically performed in the difference calculation unit 41, and in the first embodiment, it is performed every hour.
  • the current calculation result is X1
  • the previous temperature difference calculation result is X2
  • the second previous temperature difference calculation result is X3
  • the third previous temperature difference calculation result is X4
  • the calculation result of the temperature difference four times before is represented by X5. If the temperature difference cannot be calculated because the sensor state of the installed indoor temperature sensor is “abnormal”, such as the indoor unit 4d having the device number 3, the values from X1 to X5 are not updated. That is, the values of X1 to X5 of the indoor unit 4d that is the device number 3 are the calculation results of the temperature difference calculation five times before the calculation of the temperature difference one time before.
  • the calculation results X1 to X5 are stored in the nonvolatile memory 34 for each other device.
  • the temperature difference up to 4 times before is used.
  • the number of times may be increased, such as using the temperature difference up to 10 times before, and the variation is small. You may reduce the number of times.
  • the difference calculation unit 41 calculates the average value of the temperature difference between the detected indoor temperatures of the indoor unit 4a and other devices.
  • the difference calculation part 41 shall calculate the average value of the temperature difference of the detected temperature of the indoor temperature of the indoor unit 4a and another apparatus from the temperature difference for 5 times.
  • the average value of the temperature difference of the detected indoor temperature between the indoor unit 4a and other equipment may be simply referred to as the average value or the average value of the temperature differences.
  • the average value from X1 to X5 is calculated by the following equation (2).
  • the average value of the temperature differences of the detected temperatures determined from the temperature differences for five times from X1 to X5 is as follows.
  • Indoor unit 4b -1.0 ° C
  • Indoor unit 4c + 2.3 ° C
  • Indoor unit 4d + 10.0 ° C
  • Ventilator 5a + 0.5 ° C
  • the average value of the temperature difference is calculated in the difference calculation unit 41 based on the sensor state information and the detected temperature of the indoor temperature sensor mounted on the other device received by the indoor unit control unit 32 every hour, Updated.
  • the indoor unit control unit 32 uses the detected temperatures detected by the indoor temperature sensors 13 and 65 of other devices to calculate the estimated detection temperature. Estimation is performed by the estimation unit 42.
  • the estimated detected temperature is a detected temperature that is estimated to be currently detected when it is assumed that the indoor temperature sensor 13 mounted on the indoor unit 4a is normal.
  • the estimation unit 42 determines which other device's room temperature sensors 13 and 65 use the detected temperatures detected by the other room temperature sensors 13 and 65 to calculate the detected temperature when the indoor temperature sensor 13 mounted on the indoor unit 4a becomes abnormal.
  • the priority order of other devices using the detected temperature is determined in advance so that the device closer to the temperature detected by the indoor temperature sensor 13 of the indoor unit 4a has priority.
  • the priority order is the priority order 1 of the ventilator 5a with the equipment number 4 whose absolute value of the average value of the temperature differences is 0.5 ° C.
  • the priority order of the indoor unit 4b having the device number 1 whose absolute value of the average value of the temperature differences is 1.0 ° C. is defined as priority order 2.
  • the priority order of the indoor unit 4c having the device number 2 whose absolute value of the average value of the temperature differences is 2.3 ° C. is set as the priority order 3.
  • the priority order of the indoor unit 4d with the equipment number 3 having the absolute value of the average value of the temperature differences of 10.0 ° C. is set as the priority order 4.
  • the nonvolatile memory 34 stores the temperature difference from X1 to X5 of each other device and the average value of the temperature differences.
  • FIG. 10 is a diagram illustrating an example of the estimated detected temperature when the indoor temperature sensor 13 mounted on the indoor unit 4a according to the first embodiment of the present invention becomes abnormal.
  • An abnormality in the indoor temperature sensor 13 is detected by the indoor temperature sensor 13 that cannot be detected in a normal product use state due to disconnection or disconnection of the indoor temperature sensor 13 mounted on the indoor unit 4a and deterioration of the thermal element.
  • An example of a temperature that cannot occur in a normal product use state is, for example, 80.0 ° C. or higher and ⁇ 30.0 ° C. or lower.
  • the temperature which cannot occur in a normal product use state is not limited to these, and may be set appropriately.
  • the indoor unit 4a When the indoor temperature sensor 13 mounted on the indoor unit 4a becomes abnormal, the indoor unit 4a includes sensor state information indicating whether the temperature sensor mounted on another device is normal or abnormal via the communication unit 39. As for information on the detected temperature detected by the temperature sensor mounted on the other device, current information is received from the other device.
  • the received sensor state information and detected temperature information are as follows.
  • the estimated detected temperature of the indoor unit 4a is expressed by the following formula when the sensor state is normal Calculated by (3).
  • Estimated detected temperature Current detected temperature of other device's indoor temperature sensor + Average value of temperature difference (3)
  • the estimation part 42 is the information of the equipment number 4: ventilator 5a which is another apparatus with priority 1 from the above-mentioned priority.
  • “24.0 ° C.” which is the estimated detection temperature calculated using, is determined as the estimated detection temperature of the indoor unit 4a.
  • the emergency operation control unit 43 can perform the emergency operation of the indoor unit 4a by regarding the estimated temperature “24.0 ° C.” as the temperature detected by the indoor temperature sensor 13.
  • FIG. 11 is a flowchart illustrating a procedure of a calculation process of a temperature difference between the detected temperature of the indoor unit 4a and the detected temperature of another device according to the first embodiment of the present invention.
  • the indoor unit control unit 32 of the indoor unit 4a starts a temperature difference calculation process with other devices at a predetermined timing.
  • the difference calculation unit 41 of the indoor unit control unit 32 of the indoor unit 4a determines whether the indoor temperature sensor 13 mounted on the own unit is in a normal state or an abnormal state.
  • the indoor temperature sensor 13 detects a temperature of 80.0 ° C. or higher or ⁇ 30.0 ° C. or lower continuously for a predetermined period.
  • the case is regarded as an abnormal state and the other cases are regarded as normal states.
  • An example of the predetermined period is 3 minutes.
  • Step S10 determines whether or not a predetermined time, which is a predetermined update period of the temperature difference calculation, has elapsed since the previous temperature difference with another device was updated.
  • the elapsed time is measured by an update timer included in the indoor unit control unit 32.
  • An example of the predetermined time is 1 hour.
  • the update timer is a time management timer for performing a temperature difference calculation every predetermined time, and measures an elapsed time since the previous temperature difference calculation.
  • the update timer is controlled so as to add 1 to the count every second, for example.
  • the update interval of the temperature difference calculation is set to 1 hour, but the time may be arbitrarily set depending on the installation environment of the indoor unit 4a.
  • step S20 when the predetermined time has elapsed, the result in step S20 is Yes, and the process proceeds to step S30, where the temperature difference is calculated from the sensor state of the other device and the detected temperature of the indoor temperature sensors 13 and 65 of the other device. Shift to processing to calculate.
  • the device number is represented by n.
  • n starts from 1 and proceeds from step S30 to step S90, n is incremented by 1, and the processing from step S20 to step S90 is performed again.
  • n is 4, if the process proceeds to step S90, the iterative process is terminated and the process proceeds to the next step S100.
  • the difference calculation unit 41 calculates an average value of the temperature difference of the previous, second, third, and fourth times stored in the nonvolatile memory 34 and the temperature difference calculated this time.
  • step S80 the difference calculation unit 41 writes the calculation result in step S70 to the nonvolatile memory 34.
  • the difference calculation unit 41 writes and stores the average value of the temperature differences, which is the calculation result in step S70, in the nonvolatile memory 34.
  • step S100 After completion of the repetitive process, a clear process for setting the update timer to 0 is performed in step S100.
  • the difference calculation part 41 can calculate a temperature difference for every hour which is a predetermined period.
  • the estimation part 42 can estimate an estimated detection value based on the average value of the temperature difference updated every hour, when the indoor temperature sensor 13 mounted in the indoor unit 4a becomes abnormal The estimated detection value can be estimated from conditions close to.
  • step S110 the difference calculation unit 41 determines which other device when the indoor temperature sensor 13 mounted on the indoor unit 4a is in an abnormal state based on the average value of the temperature differences of the other devices.
  • the priority order for calculating the estimated detected temperature using the detected temperature is set.
  • the priority is set in ascending order of absolute value of the average temperature difference so that the device having the lowest absolute value of the temperature difference has the highest priority.
  • step S10 If the indoor temperature sensor 13 mounted on the indoor unit 4a is abnormal in step S10, the result is No in step S10, and the detected temperature of the other device and the indoor temperature sensor 13 mounted on the indoor unit 4a. Since the temperature difference from the detected temperature cannot be calculated, the temperature difference calculation process ends.
  • step S20 If the predetermined time has not elapsed in step S20, the result in step S20 is No, and the difference calculation unit 41 is the temperature between the detected temperature of the other device and the detected temperature of the indoor temperature sensor 13 mounted on the indoor unit 4a. The temperature difference calculation process is terminated without performing the difference calculation.
  • the indoor unit control unit 32 of the indoor unit 4a performs another process such as controlling the blower, and then the temperature difference calculation process is repeated from step S10.
  • FIG. 12 is a flowchart illustrating a procedure of an estimated detection temperature estimation process when the indoor temperature sensor 13 mounted on the indoor unit 4a according to the first embodiment of the present invention is in an abnormal state.
  • the indoor unit control unit 32 of the indoor unit 4a starts an estimated detection temperature estimation process at a predetermined timing.
  • the estimation unit 42 of the indoor unit control unit 32 of the indoor unit 4a determines whether the indoor temperature sensor 13 mounted on the own unit is in a normal state or an abnormal state.
  • the method for determining whether the indoor temperature sensor 13 is in a normal state or an abnormal state is the same as in step S10 described above.
  • step S210 the estimation unit 42 sets the initial value of the estimated detection temperature to “undecided” prior to calculating the estimated detection temperature using the sensor state of the other device, the detected temperature of the other device, and the average value of the temperature difference. To "".
  • the priority number is represented by p. Starting from 1 which is the highest priority and proceeding from step S230 to step S270, p is incremented by 1, and the processing from step S230 to step S270 is performed again. Further, when the process proceeds to step S270 when p is 4, the iterative process is terminated and the estimated detection temperature estimation process is terminated.
  • step S260 If p is 4 and No in step S260, the iterative process is terminated. In this case, it means that the estimated detected temperature could not be calculated. In this case, the estimation unit 42 sets the estimated detection temperature to “undecided” and ends the estimation detection temperature estimation process. When the estimated detected temperature is “undecided”, the emergency operation control unit 43 does not perform the emergency operation of the indoor unit 4a.
  • the estimation unit 42 calculates the estimated detection temperature in step S280, and then ends the estimation detection temperature estimation process.
  • the emergency operation control unit 43 performs the emergency operation of the indoor unit 4a using the calculated estimated detection temperature.
  • step S210 if the indoor temperature sensor 13 mounted on the indoor unit 4a is in a normal state, there is no need to estimate the estimated detection temperature, and thus the estimation unit 42 ends the estimation detection temperature estimation process. To do.
  • the sensor When the sensor is abnormal, it is possible to estimate an estimated detected temperature that is an estimated detected value by using the detected value of the indoor temperature sensor of another device having the next highest priority.
  • the indoor unit 4a Even if the indoor temperature sensor 13 mounted on the indoor unit 4a is in an abnormal state by performing the above processing, the indoor unit 4a is in a normal state mounted on other devices constituting the air conditioning system 100.
  • the estimated detected temperature can be estimated using the detected value of the indoor temperature sensor. Thereby, the indoor unit 4a can estimate the estimated detection temperature with high accuracy while suppressing the influence of the difference in the installation environment between the indoor unit 4a and other devices, the variation in the types of other devices, and the like.
  • the indoor unit 4a can detect the estimated temperature if there is at least one other device that has a normal indoor temperature sensor. Can be estimated. Thereby, even when the indoor temperature sensor 13 mounted on the indoor unit 4a is in an abnormal state, the indoor unit 4a does not give the user a discomfort according to the state of the space to be detected by the sensor, Emergency driving without impairing comfort can be performed. In other words, the air conditioning system 100 can accurately estimate the indoor air state value even if a sensor for detecting the indoor air state value necessary for the operation control of the indoor device breaks down. It is possible to continue.
  • the estimated detected temperature is calculated in the order of priority set in ascending order of the average value of the temperature differences, so that the temperature adjustment state is the most among a plurality of other devices in which the indoor temperature sensor is normal.
  • the estimated detected temperature can be estimated using information on other devices presumed to be close to the current indoor unit 4a. As a result, even in a situation where the operation mode of the other device is different from the operation mode of the own device, the detection is accurately estimated using the information of the other device that is estimated to be the closest to the current indoor unit 4a.
  • the temperature can be estimated.
  • the air conditioning system 100 provides comfort according to the state of the space to be detected by the sensor even when the sensor mounted on the indoor device is in an abnormal state. There is an effect that it is possible to perform an emergency driving without any loss.
  • Embodiment 2 in the processing in the air conditioning system 100 described in the first embodiment, the other devices that calculate the temperature difference are the sensors in the other devices in the normal state, and the operation mode is the own device. Other equipment in the same operation mode as. Further, in the second embodiment, in the processing of the air conditioning system 100 described in the first embodiment, the priority order determination method is not the order of decreasing the absolute value of the average value of the temperature difference, but the average of the temperature difference. Changed in ascending order of deviation. Other basic processes are the same as those in the first embodiment.
  • FIG. 13 is a diagram showing an example of temperature difference information between the indoor unit 4a and other devices stored in the nonvolatile memory 34 in the second embodiment of the present invention.
  • the indoor unit 4 a, the indoor unit 4 b, the indoor unit 4 c, the indoor unit 4 d, and the ventilation device 5 a are similar to those described in the first embodiment.
  • positions in a building as an apparatus which comprises this indoor apparatus is demonstrated.
  • the other devices in this case are devices other than the indoor unit 4a arranged in the building in the air conditioning system 100 when viewed from the indoor unit 4a.
  • the indoor unit 4b is the other device with device number 1
  • the indoor unit 4c is the other device with device number 2
  • the indoor unit 4d is the other device with device number 3
  • the ventilator 5a is the other device with device number 4.
  • the indoor unit 4a is whether the indoor temperature sensor mounted in the other device is in a normal state or an abnormal state as current information received from the other device via the communication unit 39. Whether the sensor status indicates, the detected temperature detected by the indoor temperature sensor mounted on another device, whether the operation status of the other device is cooling operation, heating operation, or blowing operation
  • the operation mode shown is shown.
  • X1 to X5 which are the temperature difference of the indoor temperature detection temperature of the indoor unit 4a and other devices, the average value of the temperature difference of the indoor temperature detection of the indoor unit 4a and other devices, The average deviation of the temperature difference from X1 to X5 and the priority are shown for each operation mode.
  • the current information received from other devices is as follows.
  • the indoor temperature sensor 13 of the indoor unit 4a has a sensor state of “normal”, a detected temperature of “24.0 ° C.”, and an operation mode of “heating”.
  • the difference calculating unit 41 is the indoor unit 4a.
  • the temperature difference between the indoor unit 4a and each other device is calculated by the above equation (1) based on the detected temperature of the other device and the detected temperature of the other device received from the other device.
  • the temperature difference between the indoor unit 4a and the other device with the device number 3 is that the sensor state of the indoor temperature sensor 13 mounted on the other device with the device number 3 is “abnormal”.
  • the difference calculation is “impossible”.
  • the difference calculation unit 41 does not calculate the temperature difference.
  • the difference calculation unit 41 receives information on the sensor state, the detected temperature, and the operation mode from another device at a predetermined cycle, and calculates the temperature difference.
  • the calculation results X1 to X5 are stored in the nonvolatile memory 34 for each other device and each operation mode.
  • the calculation result of the temperature difference between X1 and X5 of other devices is as follows as shown in FIG. In the following, the calculation result of the temperature difference is shown in the order of X1 to X5.
  • the difference calculation unit 41 calculates the average value from X1 to X5 by the above equation (2).
  • cooling, and ventilation is calculated
  • the difference calculation unit 41 calculates the average deviation (° C.) of the temperature difference of the detected temperatures from X1 to X5 by the following equation (5).
  • the average deviation of the temperature difference between the detected temperatures may be simply referred to as an average deviation.
  • Average deviation (
  • the average deviation of the temperature difference of the detected temperature obtained from the calculation result of the temperature difference from X1 to X5 and the average value of the temperature difference for five times from X1 to X5 is as follows.
  • Equipment number 3 indoor unit 4d
  • the difference calculation unit 41 sets the priority order from the average deviation of the temperature difference of each other device.
  • the priorities are set in ascending order of the average temperature difference deviation so that the device with the lowest average temperature difference deviation has the highest priority. For other devices having no average temperature difference deviation, the priority is set to the lowest order. When there are a plurality of other devices having the same temperature difference average deviation, the priority is set in the order of the device numbers.
  • the order of priority during heating is the order of the indoor unit 4b with device number 1, the indoor unit 4c with device number 2, the indoor unit 4d with device number 3, and the ventilator 5a with device number 4.
  • the priority during cooling is the order of the indoor unit 4d with the device number 3, the indoor unit 4b with the device number 1, the indoor unit 4c with the device number 2, and the ventilator 5a with the device number 4.
  • the priority order at the time of ventilation becomes the order of the indoor unit 4d of the equipment number 3, the indoor unit 4c of the equipment number 2, the ventilator 5a of the equipment number 4, and the indoor unit 4b of the equipment number 1.
  • FIG. 14 is a diagram illustrating an example of an estimated detected temperature when the indoor temperature sensor 13 mounted on the indoor unit 4a becomes abnormal in the second embodiment of the present invention.
  • the indoor unit 4a includes sensor state information indicating whether the temperature sensor mounted on another device is normal or abnormal via the communication unit 39.
  • the operation mode information indicating whether the operation status of the other equipment is cooling operation, heating operation, or air blowing operation
  • the detected temperature information detected by the temperature sensor mounted on the other equipment Receive from the device.
  • the received information is as follows.
  • the estimated detection temperature of the indoor unit 4a is the average value of the temperature difference, the sensor state of the other device, the operation mode of the other device, and the detected temperature of the other device. Based on the following equation (6).
  • Estimated detected temperature “Detected temperature of other device” + “Average value of temperature difference corresponding to the operation mode of the device in another device” (6)
  • the estimated detected temperature during heating estimated from the information of each other device is as follows.
  • Estimated detected temperature Unable to calculate due to abnormal sensor state
  • the estimated detected temperature at the time of heating is shown here, the calculation is performed in the same manner when the operation mode of the indoor unit 4a is at the time of cooling or air blowing.
  • the estimation unit 42 is a device number that is another device having a priority of 1 from the above-mentioned priority. 1: “23.0 ° C.” that is the estimated detection temperature calculated using the information of the indoor unit 4b is determined as the estimated detection temperature of the indoor unit 4a. Then, the emergency operation control unit 43 can perform the emergency operation of the indoor unit 4a by regarding the estimated temperature “23.0 ° C.” as the temperature detected by the indoor temperature sensor 13.
  • the average value of the temperature difference of the other device is managed for each operation mode, and the priority is set for each operation mode. It may be set. Then, the estimated detection temperature may be calculated by the above equation (6), and determined as the estimated detection temperature according to the priority order.
  • FIG. 15 is a flowchart illustrating a procedure of a calculation process of a temperature difference between the detected temperature of the indoor unit 4a and the detected temperature of another device according to the second embodiment of the present invention.
  • step S410 and step S420 are performed. Note that step S410 and step S420 are the same as step S10 and step S20 described in the first embodiment, and thus description thereof is omitted.
  • step S420 If the predetermined time has elapsed in step S420, the result in step S420 is Yes, and the process proceeds to step S430, where the temperature difference is calculated from the sensor state of the other device, the operation mode of the other device, and the detected temperature of the other device.
  • step S430 the temperature difference is calculated from the sensor state of the other device, the operation mode of the other device, and the detected temperature of the other device.
  • the device number is represented by n.
  • the unit 41 receives it.
  • step S510 a clear process for setting the update timer to 0 is performed in step S510.
  • the difference calculation part 41 can calculate the temperature difference, the average value of the temperature difference, and the average deviation of the temperature difference every hour.
  • the estimation part 42 can estimate an estimated detection value based on the temperature difference updated every hour, the average value of a temperature difference, and the average deviation of a temperature difference, the indoor mounted in the indoor unit 4a
  • the estimated detection value can be estimated from a condition close to the time when the temperature sensor 13 becomes abnormal.
  • step S520 the difference calculation unit 41 detects which other device when the indoor temperature sensor 13 mounted on the own device is in an abnormal state based on the average deviation of the temperature difference between the other devices. Sets the priority for calculating the estimated detected temperature using the temperature. The priority is set in ascending order of the average temperature difference deviation so that the device with the lowest average temperature difference deviation has the highest priority. When the priority order is set, the temperature difference calculation process ends.
  • FIG. 16 is a flowchart illustrating a procedure of an estimated detection temperature estimation process when the indoor temperature sensor 13 mounted on the indoor unit 4a is in an abnormal state in the second embodiment of the present invention.
  • step S610 and step S620 are performed. Note that step S610 and step S620 are the same as step S210 and step S220 described in the first embodiment, and thus description thereof is omitted.
  • the priority number is represented by p. Starting from 1 which is the highest priority and proceeding from step S630 to step S670, p is incremented by 1, and the processing from step S630 to step S670 is performed again. Further, when the process proceeds to step S670 when p is 4, the iterative process is terminated, and the estimated detection temperature estimation process is terminated.
  • the unit 42 receives it.
  • the method for determining whether the indoor temperature sensor is in a normal state or an abnormal state is the same as in step S10 described above.
  • step S660 If p is 4 and No in step S660, the iterative process is terminated. In this case, it means that the estimated detected temperature could not be calculated. In this case, the estimation unit 42 sets the estimated detection temperature to “undecided” and ends the estimation detection temperature estimation process. When the estimated detected temperature is “undecided”, the emergency operation control unit 43 does not perform the emergency operation of the indoor unit 4a.
  • step S680 the estimation unit 42 determines whether the operation mode of the other device received in step S650 matches the operation mode of the own device.
  • the repetition process for the device is terminated, p is incremented by 1, and the process is started again from step S630.
  • step S680 If p is 4 and No in step S680, the iterative process is terminated. In this case, the estimation unit 42 sets the estimated detection temperature to “undecided” and ends the estimation detection temperature estimation process. When the estimated detected temperature is “undecided”, the emergency operation control unit 43 does not perform the emergency operation of the indoor unit 4a.
  • the estimation unit 42 calculates the estimated detection temperature in step S690, and then ends the estimation detection temperature estimation process.
  • the emergency operation control unit 43 performs the emergency operation of the indoor unit 4a using the calculated estimated detection temperature.
  • the sensor is abnormal, it is possible to estimate an estimated detected temperature that is an estimated detected value by using the detected value of the indoor temperature sensor of another device having the next highest priority.
  • the estimation unit 42 proceeds to step S690, so that the estimation unit 42 If the operation mode of the device does not match the operation mode of the device itself, the estimated detection temperature, which is the estimated detection value, is estimated using the detection value of the indoor temperature sensor of the other device with the next highest priority. can do.
  • the indoor unit 4a is mounted on another device that is operating in the same operation mode as the own device.
  • the estimated detected temperature can be accurately estimated using the detected value of the indoor temperature sensor in the normal state.
  • the indoor unit 4a operates in the same operation mode as that of its own device even when the indoor temperature sensor is in an abnormal state in a plurality of other devices constituting the air conditioning system 100. If there is even one device, the estimated detection temperature can be estimated. Thereby, even when the indoor temperature sensor 13 mounted on the indoor unit 4 is in an abnormal state, the indoor unit 4a is accurately estimated without being affected by the difference in the operating state between the other device and the own device.
  • the detected temperature can be estimated, and an emergency operation can be performed without causing discomfort to the user.
  • the indoor unit 4a which is the first indoor device among the plurality of indoor devices is the first for controlling the air conditioning operation of the indoor unit 4a.
  • the room temperature sensor 13 which is a 1st sensor which detects a state value is provided.
  • the second indoor unit 4b, the indoor unit 4c, the indoor unit 4d, and the ventilator 5a which are second indoor units other than the indoor unit 4a among the plurality of indoor units, control the air conditioning operation of the own unit.
  • the indoor temperature sensor 13 or the indoor temperature sensor 65 which is a second sensor for detecting the state value, is provided. That is, the first sensor and the second sensor are the same type of sensor.
  • the indoor unit 4a detects the detected value of the indoor temperature sensor 13 and the normal second indoor unit.
  • a difference calculation unit is provided that calculates a difference from the detected value of the indoor temperature sensor 13 or the indoor temperature sensor 65 that is two sensors.
  • the indoor unit 4a is configured to detect a value detected by the indoor temperature sensor 13 or the indoor temperature sensor 65 that is a normal second sensor when the indoor temperature sensor 13 that is a first sensor included in the indoor unit 4a becomes abnormal.
  • an estimation unit that calculates an estimated detection value of the first state value using the difference.
  • the estimated detection value of the first state value is an estimated detection value estimated to be detected when the indoor temperature sensor 13 included in the indoor unit 4a is normal.
  • the indoor unit 4 and the ventilation device 5 can include any sensors of an indoor temperature sensor, an indoor humidity sensor, an outside air temperature sensor, an outside air humidity sensor, and an indoor CO 2 sensor.
  • the first sensor and the second sensor are the same type of these sensors.
  • the indoor unit 4 performs the same processing as described above in any of the indoor humidity sensor, the outdoor temperature sensor, the outdoor air humidity sensor, and the indoor CO 2 sensor.
  • an estimated detection value estimated to be detected when the sensor is normal can be calculated.
  • the indoor unit 4a is different in the operation state between the other devices and the own device even when the indoor temperature sensor 13 mounted on the indoor unit 4 is in an abnormal state.
  • the estimated detection temperature can be estimated with high accuracy without being affected by the emergency operation, and the emergency operation can be performed without causing discomfort to the user.
  • Embodiment 3 In the first embodiment and the second embodiment described above, the case where the estimated detected temperature is estimated and the emergency operation is performed in the indoor unit 4 has been described. In the third embodiment, the case where the estimated detected temperature is estimated and the emergency operation is performed in the ventilation device 5 will be described.
  • the ventilator control unit 82 of the ventilator 5 includes a difference calculation unit 91, an estimation unit 92, and an emergency operation control unit 93.
  • the difference calculation unit 91 has the same function as the difference calculation unit 41. That is, the difference calculation unit 91 uses the detection result detected by the sensor installed in the own device and the normal sensor installed in the other indoor device when various sensors installed in the own device are normal. An operation for obtaining a difference between the detected result and the detected result is performed. The difference between detection results is the difference between detection results of the same type of sensor.
  • the estimation unit 92 has the same function as the estimation unit 42. That is, the estimation unit 92, when the ventilator control unit 82 detects an abnormality of various sensors mounted on its own device, the detection result detected by the sensor mounted on another indoor device in which the sensor is normal. Then, from the difference between the detection results calculated by the difference calculation unit 41, an estimated detection value that is an estimated value of the detection result of the sensor mounted on the own apparatus in which the abnormality is detected is calculated.
  • the emergency operation control unit 93 controls the emergency operation of the ventilation device 5 based on the estimated detection value.
  • the ventilator 5a which is the first indoor device among the plurality of indoor devices, detects the indoor temperature that is the first state value that is the state value of the air-conditioned room of the ventilator 5a.
  • the indoor temperature sensor 65 is provided.
  • the indoor unit 4a, the indoor unit 4b, the indoor unit 4c, and the indoor unit 4d which are second indoor units other than the ventilation unit 5a among the plurality of indoor units, are installed in the second indoor unit targeted for air conditioning of the own unit.
  • the room temperature sensor 13 which is a 2nd sensor which detects the 2nd state value which is a state value is provided. That is, the first sensor and the second sensor are the same type of sensor.
  • the difference calculation unit 91 of the ventilation device 5a and the detection value detected by the indoor temperature sensor 65 are normal.
  • the difference with the detected value in the indoor temperature sensor 13 which is the 2nd sensor of 2 indoor units is calculated.
  • the estimation unit 92 of the ventilation device 5a detects the detected value of the indoor temperature sensor 13 that is a normal second sensor when the indoor temperature sensor 65 that is the first sensor included in the ventilation device 5a becomes abnormal.
  • An estimated detection value of the first state value is calculated using the difference.
  • the estimated detection value of the first state value is an estimated detection value estimated to be detected when the indoor temperature sensor 65 provided in the ventilation device 5a is normal.
  • the indoor unit 4 and the ventilation device 5 can include any sensors of an indoor temperature sensor, an indoor humidity sensor, an outside air temperature sensor, an outside air humidity sensor, and an indoor CO 2 sensor.
  • the first sensor and the second sensor are the same type of these sensors.
  • the ventilator 5 performs the same process as the process described in the first embodiment or the second embodiment in any of the indoor humidity sensor, the outdoor temperature sensor, the outdoor air humidity sensor, and the indoor CO 2 sensor.
  • an estimated detection value estimated to be detected when the sensor is normal can be calculated.
  • the ventilation device 5a includes the difference calculation unit 91, the estimation unit 92, and the emergency operation control unit 93, so that when the indoor temperature sensor 65 mounted on the ventilation device 5a becomes abnormal, the indoor temperature It is possible to estimate the estimated detection value of the sensor 65 and perform emergency operation.
  • the indoor device such as the indoor unit 4 and the ventilation device 5
  • the device is equipped with a sensor, by including the difference calculation unit, the estimation unit and the emergency operation control unit as described above, It is possible to estimate the estimated detection value of the sensor that has become abnormal and perform emergency operation.
  • the air conditioning system 100 includes the central monitoring device 8 and various indoor devices.
  • the indoor devices are various electronic devices arranged in a building controlled by the central monitoring device 8, and here, the outdoor unit 3, the plurality of indoor units 4, and the plurality of ventilation devices 5 are exemplified.
  • the indoor devices are not limited to these, and other various electronic devices may be connected to the central monitoring device 8.
  • the indoor unit 4 in the fourth embodiment has the same configuration and function as the indoor unit 4 described above except that the functions of the difference calculation unit and the estimation unit described above are not executed.
  • the ventilation apparatus 5 in this Embodiment 4 has the same structure and function as the ventilation apparatus 5 mentioned above except not performing the function of the difference calculation part and estimation part which were mentioned above.
  • the central monitoring apparatus 8 has the function of the difference calculating part and estimation part which were mentioned above. Except for these configurations, the configuration and function of the air-conditioning system 100 according to Embodiment 4 are the same as those of the above-described embodiment.
  • FIG. 17 is a diagram showing a functional configuration of the central monitoring device 8 according to the fourth embodiment of the present invention.
  • the central monitoring device 8 includes a central control unit 110 and a communication unit 113.
  • the communication unit 113 is capable of communicating with the outdoor unit 3 and the ventilation device 5, which are devices other than the own device in the air conditioning system 100, via the communication line 2.
  • the central control unit 110 can control the overall operation of the air conditioning system 100.
  • the central control unit 110 for example, a command for operating the indoor unit 4, a command for stopping the indoor unit 4, a command for heating the air conditioner, a command for cooling the indoor unit 4,
  • Various commands such as a command for setting the wind speed of the indoor unit 4 can be transmitted to the indoor unit 4 via the communication unit 113.
  • the central control unit 110 communicates various commands such as a command for operating the ventilation device 5, a command for stopping the ventilation device 5, and a command for setting the ventilation air volume of the ventilation device 5, for example. It can be transmitted to the ventilator 5 via the unit 113.
  • the central control unit 110 includes a difference calculation unit 111 and an estimation unit 112.
  • the difference calculation unit 111 basically has the same function as the difference calculation unit 41. That is, the difference calculation unit 111 detects the detection result detected by the sensor mounted on one indoor device and the normal mounted on another indoor device when various sensors mounted on the indoor device are normal. An operation for obtaining a difference between the detection result detected by the sensor and the detection result is performed. The difference between detection results is the difference between detection results of the same type of sensor.
  • the estimation unit 112 basically has the same function as the estimation unit 42. That is, when the abnormality of the sensor mounted in one indoor device is detected, the estimation unit 112 detects the detection result detected by the sensor mounted in another indoor device in which the sensor is normal, and the difference calculation unit 111. An estimated detection value that is an estimated value of the detection result of the sensor mounted on the indoor device in which the abnormality is detected is calculated from the difference between the detection results calculated in step (b).
  • the central control unit 110 can be realized by a microcomputer. That is, the central control unit 110 is realized, for example, as a processing circuit having a hardware configuration illustrated in FIG. When the central control unit 110 is realized by the processing circuit shown in FIG. 5, the central control unit 110 is realized by the processor 101 executing a program stored in the memory 102. A plurality of processors and a plurality of memories may cooperate to realize the above function. Further, a part of the functions of the central control unit 110 may be mounted as an electronic circuit, and the other parts may be realized using the processor 101 and the memory 102.
  • the communication unit 113 may be configured to be realized by the processor 101 executing a program stored in the memory 102 in the same manner.
  • a plurality of processors and a plurality of memories may cooperate to implement the function of the communication unit 113.
  • a part of the functions of the communication unit 113 may be mounted as an electronic circuit, and the other part may be realized using the processor 101 and the memory 102.
  • a processor and a memory for realizing one constituent unit of the central control unit 110 and the communication unit 113 are a processor and a memory for realizing another constituent unit of the central control unit 110 and the communication unit 113. Or a different processor and memory.
  • FIG. 18 is a sequence diagram showing a procedure of temperature difference calculation processing and estimated detection temperature estimation processing in the central monitoring device 8 according to Embodiment 4 of the present invention.
  • the difference calculation unit 111 of the central control unit 110 of the central monitoring device 8 includes the indoor unit 4a, the indoor unit 4b, the indoor unit 4c, the indoor unit 4d, and the ventilation device 5a that are indoor units in the air conditioning system 100.
  • a state request command that requests the sensor state, the operation mode, and the detected temperature of the indoor unit 4 and the ventilation device 5 is transmitted to each device via the communication unit 113. .
  • Each device that has received the state request command transmits, in sequence SQ2, a state response command including information on the sensor state, the operation mode, and the detected temperature of its own room temperature sensor to the difference calculation unit 111 of the central monitoring device 8. To do.
  • the difference calculation unit 111 that has received the state request command from the indoor unit 4 and the ventilating device 5 calculates the average value of the temperature difference from the received sensor state, operation mode, and detected temperature of each device in sequence SQ3. Set.
  • the difference calculation unit 111 sets the priority order to be used when the installed indoor temperature sensor becomes abnormal for each of the indoor unit 4a, the indoor unit 4b, the indoor unit 4c, the indoor unit 4d, and the ventilation device 5a. Set for each operation mode.
  • the above-described processing from the sequence SQ1 to the sequence SQ3 is performed every predetermined time that is a predetermined update cycle.
  • An example of the predetermined time is 1 hour.
  • the emergency operation control unit 93 of the ventilation device 5a in which the abnormality of the indoor temperature sensor 65 has occurred sends an estimated detection temperature request command for requesting the estimated detection temperature for the operation mode of the own device to the central control unit 110 of the central monitoring device 8. Send.
  • the emergency operation control unit 93 of the ventilator 5 since the ventilator 5 does not have a temperature adjustment function, the emergency operation control unit 93 of the ventilator 5 always regards the operation mode of the self-device as the air blowing operation and requests the estimated detected temperature during the air blowing operation. An estimated detected temperature request command at the time is transmitted to the central control unit 110.
  • the estimation unit 112 sets the sensor request, the operation mode, and the state request command for requesting the detection temperature in descending order of priority set in the sequence SQ3. It transmits to each apparatus of the indoor unit 4a, the indoor unit 4b, the indoor unit 4c, and the indoor unit 4d.
  • the priority order of the indoor unit 4a, the indoor unit 4b, the indoor unit 4c, and the indoor unit 4d is set to indoor unit 4c> indoor unit 4b> indoor unit 4a.
  • the estimation unit 112 transmits a state request command to the indoor unit 4c in sequence SQ12.
  • the indoor unit 4c that has received the state request command transmits a state response command including information on the sensor state, the operation mode, and the detected temperature of the device itself to the estimation unit 112.
  • the estimation unit 112 that has received the state request command calculates the estimated detection temperature in sequence SQ14 using the received sensor state, operation mode, and detection temperature of each device. In calculating the estimated detection temperature, the estimating unit 112 determines whether the sensor state of the indoor temperature sensor 13 of the indoor unit 4c is normal and whether the operation mode of the ventilator 5a matches the operation mode of the indoor unit 4c. Determine. When the sensor state of the indoor temperature sensor 13 of the indoor unit 4c is normal and the operation mode of the ventilator 5a matches the operation mode of the indoor unit 4c, the estimation unit 112 calculates the estimated detection temperature.
  • the estimation unit 112 When the sensor state of the indoor temperature sensor 13 of the indoor unit 4c is abnormal or the operation mode of the ventilation device 5 and the operation mode of the indoor unit 4c do not match, the estimation unit 112 next places priority in sequence SQ15. A state request command for requesting the sensor state, the operation mode, and the detected temperature of the indoor temperature sensor 13 of the indoor unit 4b having a high height is transmitted to the indoor unit 4b.
  • step SQ16 the indoor unit 4b that has received the state request command transmits a state response command including information on its own sensor state, operation mode, and detected temperature to the estimation unit 112.
  • the estimation unit 112 that has received the state request command calculates an estimated detection temperature using the received sensor state, operation mode, and detection temperature of each device in sequence SQ17. In calculating the estimated detected temperature, the estimating unit 112 determines whether the sensor state of the indoor temperature sensor 13 of the indoor unit 4b is normal and whether the operation mode of the ventilation device 5a matches the operation mode of the indoor unit 4b. Determine. When the sensor state of the indoor temperature sensor 13 of the indoor unit 4b is normal and the operation mode of the ventilation device 5a matches the operation mode of the indoor unit 4b, the estimation unit 112 calculates the estimated detection temperature.
  • the operation mode of the ventilation device 5a matches the operation mode of the indoor unit 4b, and the estimation unit 112 completes the calculation of the estimated detection temperature, the sequence In SQ18, an estimated detected temperature response command during the blowing operation including the calculated estimated detection temperature during the blowing operation is transmitted to the ventilator 5a.
  • the emergency operation control part 93 of the ventilation apparatus 5a implements the emergency operation of the ventilation apparatus 5a using the estimated detected temperature at the time of the ventilation operation received.
  • the estimated detection temperature is “undecided”.
  • an estimated detected temperature response command is transmitted to the ventilator 5a.
  • the ventilator 5a that has received the estimated detection temperature “undecided” does not perform the emergency operation.
  • the ventilator 5a that has received the estimated detected temperature response command then transmits an estimated detected temperature request command to the central monitoring device 8 every predetermined period, and performs an emergency operation following the change in the room temperature.
  • An example of the predetermined period is 10 minutes.
  • the above-described processing is performed between the indoor unit 4 and the ventilation device 5 that are the indoor devices in the air conditioning system 100, and the central control unit 110 of the central monitoring device 8, whereby the indoor unit 4 and the ventilator 5 can perform the processing such as the calculation of the temperature difference, the calculation of the average value of the temperature difference, the setting of the priority order, and the calculation of the estimated detected temperature in a centralized manner.
  • the central temperature monitoring device 8 includes the difference calculation unit 111 and the estimation unit 112
  • the ventilation device 5a includes the emergency operation control unit 93
  • the indoor temperature sensor 65 mounted on the ventilation device 5a becomes abnormal. It is possible to estimate the estimated detection value of the indoor temperature sensor 65 and perform emergency operation.
  • the central monitoring device 8 performs centralized processing such as calculation of the temperature difference in the indoor unit 4 and the ventilation device 5, calculation of the average value of the temperature difference, priority setting, and calculation of the estimated detection temperature,
  • the frequency of communication performed via the communication line 2 of the air conditioning system in order to implement emergency operation can be suppressed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention concerne un système de climatisation dans lequel un premier dispositif intérieur, parmi une pluralité de dispositifs intérieurs, est muni d'un premier capteur permettant de détecter une première valeur d'état destinée à commander un fonctionnement de climatisation du premier dispositif intérieur. Un second dispositif intérieur, parmi la pluralité de dispositifs intérieurs du climatiseur, ledit second dispositif intérieur étant différent du premier dispositif intérieur, est muni d'un second capteur permettant de détecter une seconde valeur d'état destinée à commander un fonctionnement de climatisation du second dispositif intérieur. Le système de climatisation comprend : une unité de calcul de différence (41) permettant de calculer la différence entre une valeur de détection émanant du premier capteur et une valeur de détection émanant du second capteur en fonctionnement normal lorsque le premier capteur fonctionne normalement ; et une unité d'estimation (42) permettant d'utiliser la valeur de détection émanant du second capteur en fonctionnement normal et la différence susmentionnée pour calculer une valeur de détection estimée de la première valeur d'état lorsque le premier capteur ne fonctionne pas normalement. Dans le système de climatisation, une unité de commande de fonctionnement, permettant de commander le fonctionnement du premier dispositif intérieur en fonction de la valeur de détection estimée, est disposée dans le premier dispositif intérieur.
PCT/JP2018/009593 2018-03-12 2018-03-12 Système de climatisation WO2019175946A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06101897A (ja) * 1992-09-21 1994-04-12 Toshiba Home Technol Corp 空気調和機
JPH09152175A (ja) * 1995-12-01 1997-06-10 Hitachi Ltd 機器の状態検出装置および空気調和機
US5801940A (en) * 1995-01-19 1998-09-01 Gas Research Institute Fault-tolerant HVAC system
JP2001153435A (ja) * 1999-11-30 2001-06-08 Daikin Ind Ltd マルチ型空気調和装置の運転制御システム
JP2002341901A (ja) * 2001-05-21 2002-11-29 Mitsubishi Heavy Ind Ltd 信号処理装置
JP2011163614A (ja) * 2010-02-08 2011-08-25 Mitsubishi Electric Corp 空調管理システム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06101897A (ja) * 1992-09-21 1994-04-12 Toshiba Home Technol Corp 空気調和機
US5801940A (en) * 1995-01-19 1998-09-01 Gas Research Institute Fault-tolerant HVAC system
JPH09152175A (ja) * 1995-12-01 1997-06-10 Hitachi Ltd 機器の状態検出装置および空気調和機
JP2001153435A (ja) * 1999-11-30 2001-06-08 Daikin Ind Ltd マルチ型空気調和装置の運転制御システム
JP2002341901A (ja) * 2001-05-21 2002-11-29 Mitsubishi Heavy Ind Ltd 信号処理装置
JP2011163614A (ja) * 2010-02-08 2011-08-25 Mitsubishi Electric Corp 空調管理システム

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