WO2023135722A1 - Dispositif de gestion d'équipement, système de gestion d'équipement et procédé de traitement de données pour système de gestion d'équipement - Google Patents

Dispositif de gestion d'équipement, système de gestion d'équipement et procédé de traitement de données pour système de gestion d'équipement Download PDF

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Publication number
WO2023135722A1
WO2023135722A1 PCT/JP2022/001032 JP2022001032W WO2023135722A1 WO 2023135722 A1 WO2023135722 A1 WO 2023135722A1 JP 2022001032 W JP2022001032 W JP 2022001032W WO 2023135722 A1 WO2023135722 A1 WO 2023135722A1
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WO
WIPO (PCT)
Prior art keywords
air conditioner
refrigerant
unit
equipment management
operation data
Prior art date
Application number
PCT/JP2022/001032
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English (en)
Japanese (ja)
Inventor
英俊 関
紀行 清水
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/JP2022/001032 priority Critical patent/WO2023135722A1/fr
Priority to JP2023573730A priority patent/JPWO2023135722A1/ja
Publication of WO2023135722A1 publication Critical patent/WO2023135722A1/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
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • 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
    • F24F11/46—Improving electric energy efficiency or saving
    • F24F11/47—Responding to energy costs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode

Definitions

  • the present disclosure relates to a device management device, a device management system, and a data processing method for the device management system.
  • Patent Document 1 Conventionally, a technique for detecting leakage of refrigerant circulated in an air conditioner is known. This type of technology is described in Patent Document 1, for example.
  • the refrigerant amount determination device described in Patent Document 1 acquires operating data of an air conditioner, infers a refrigerant amount index value from the operating data, and compares the inferred refrigerant amount estimated value with the refrigerant index value during normal operation. By doing so, the refrigerant leakage is determined, and if there is refrigerant leakage, the manager of the air conditioner is notified of the refrigerant leakage.
  • the Fluorocarbon Emissions Control Law requires managers of properties with multiple commercial air conditioners, such as stores and buildings, to conduct simple inspections of the air conditioners at least once every three months. obliged to do so. Accordingly, the equipment manager is required to confirm that there is no leakage of the refrigerant through simple inspections once every three months. Simple inspections are performed by the equipment manager, for example, if there are abnormal noises or vibrations in the air conditioner, if it does not cool when it is cooling, if it does not warm when it is heating, and if the heat exchanger is attached visually. This includes checking for signs of leakage, such as whether frost is observed.
  • the remote management system will be able to replace simple inspections.
  • This remote management system is required to detect refrigerant leaks in air conditioners based on guidelines (GL-17).
  • An object of the present invention is to provide a data processing method for a system and an equipment management system.
  • a device management device collects operation data related to the operation of the air conditioner from a communication device mounted on the air conditioner that exchanges heat between the refrigerant and air by circulating the refrigerant.
  • a diagnosis unit that diagnoses whether or not the refrigerant is leaking based on the operation data collected by the collection unit; and the operation data collected by the collection unit and the diagnosis result of the diagnosis unit.
  • a device management system includes an air conditioner that exchanges heat between the refrigerant and air by circulating a refrigerant, a communication device that can communicate with the air conditioner, and a communication device that can communicate with the air conditioner. a device management device, wherein the device management device accumulates operation data relating to the operation of the air conditioner and diagnosis results of diagnosing whether or not the refrigerant is leaking based on the operation data; is diagnosed as leaking, the terminal related to the administrator of the air conditioner is notified.
  • a data processing method for a device management system operates an air conditioner that exchanges heat between the refrigerant and air by circulating a refrigerant, and from a communication device capable of communicating with the air conditioner, the Operation data relating to the operation of the air conditioner is collected, whether or not the refrigerant is leaking is diagnosed based on the collected operation data, the collected operation data and diagnosis results are accumulated, and the refrigerant is When it is diagnosed that there is leakage, the terminal related to the manager of the air conditioner is notified.
  • simple inspection of the air conditioner can be omitted by remotely detecting refrigerant leakage from the air conditioner.
  • FIG. 1 is a block diagram showing an example of a device management system according to an embodiment
  • FIG. It is a figure which shows an example of the database registered into the equipment management apparatus in embodiment.
  • BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows schematic structure of the air conditioner in embodiment. It is a block diagram showing an example of functional composition of an air conditioner in an embodiment, and a device management device.
  • 6 is a flow chart showing an example of processing for detecting refrigerant leakage by the device management device according to the embodiment. It is a figure which shows an example of the data recorded on the equipment management apparatus in embodiment.
  • 4 is a sequence diagram showing an example of signal flow in the device management system according to the embodiment;
  • FIG. 8 is a flowchart showing another example of processing for detecting coolant leakage by the device management device according to the embodiment;
  • 4 is a sequence diagram showing an example of signal flow in the device management system according to the embodiment;
  • FIG. 1 is a block diagram showing an example of a device management system according to an embodiment.
  • the device management system includes, for example, one or more air conditioners 100, a device management device 200, an owner terminal device 300, and a maintenance company terminal device 400.
  • the equipment management device 200, the owner terminal device 300, and the maintenance company terminal device 400 have a communication interface (not shown) such as a NIC (Network Interface Card) or a wireless communication module for connecting to a network NW such as the Internet.
  • the air conditioner 100 includes a communication unit 30 (external communication unit 150) as described later.
  • the user of the air conditioner 100 is described as “user”, the administrator of the air conditioner 100 is described as “owner”, and services such as maintenance of the air conditioner 100 are provided as a business. Those who do this shall be referred to as “maintenance contractors”.
  • a maintenance company is an example of a service provider using the air conditioner 100 .
  • the owner terminal device 300 is an example of a terminal related to an administrator of the air conditioner 100 .
  • the air conditioner 100 includes, for example, an outdoor unit 10 and an indoor unit 20.
  • the outdoor unit 10 is arranged outdoors.
  • the indoor unit 20 is arranged indoors.
  • the outdoor unit 10 and the indoor unit 20 are connected to each other by a circulation path through which the refrigerant circulates.
  • the air conditioner 100 causes heat exchange between the refrigerant and the indoor air in which the indoor unit 20 is arranged by circulating the refrigerant in the circulation path portion. Thereby, the air conditioner 100 adjusts the temperature of the indoor air.
  • one outdoor unit 10 and one indoor unit 20 are provided, but the present invention is not limited to this. It may be the air conditioner 100 .
  • the diagnosis of refrigerant leakage which will be described later, may be performed for each indoor unit 20 .
  • the air conditioner 100 communicates with the operation unit 110 and the information processing terminal 120, for example.
  • the operation unit 110 is, for example, a controller embedded in an indoor wall.
  • the operation unit 110 is connected to the indoor unit 20 by wire.
  • the operation unit 110 includes operation buttons operated by the user and a display unit.
  • the operation unit 110 receives a user's operation and outputs an operation signal to the indoor unit 20 .
  • the operation unit 110 displays various information such as the state of the air conditioner 100 on the display unit.
  • the information processing terminal 120 is a smartphone or the like operated by a user or the like.
  • the information processing terminal 120 includes operation buttons and a display unit operated by the user.
  • the information processing terminal 120 receives a user's operation and outputs an operation signal to the indoor unit 20 .
  • the information processing terminal 120 displays various information such as the state of the air conditioner 100 on the display unit.
  • the device management device 200 is an information processing device such as a server device that accumulates operation data of the air conditioner 100 and performs various processes using the operation data.
  • the equipment management device 200 makes various notifications to the owner's terminal device 300 and the maintenance company's terminal device 400 .
  • the equipment management device 200 provides information on operation data based on requests from the terminal device 300 for the owner and the terminal device 400 for the maintenance company.
  • the device management device 200 manages owner information, user information, property information about the property where the air conditioner 100 is installed, device information of the air conditioner 100, operation data of the air conditioner 100, and the like. For example, the device management device 200 receives owner information, user information, property information, device information, operation data, etc. based on a request received from the information processing terminal 120, the owner terminal device 300, or the maintenance company terminal device 400. registration, reference, modification and deletion of
  • the information processing terminal 120 acquires user information, property information, and device information, for example, by accepting user operations.
  • the information processing terminal 120 acquires device information of the air conditioner 100 by reading the code attached to the outdoor unit 10 or the indoor unit 20 .
  • the information processing terminal 120 may acquire device information of the air conditioner 100 from the operation unit 110 . Further, the information processing terminal 120 can acquire device information of the air conditioner 100 by reading a code written on a nameplate attached to the air conditioner 100 .
  • User information, property information, and equipment information are transmitted from information processing terminal 120 to equipment management apparatus 200 via air conditioner 100 .
  • FIG. 2 is a diagram showing an example of a database registered in the device management apparatus 200 according to the embodiment.
  • the equipment management device 200 builds, for example, an owner table, property table, equipment table, and maintenance company table.
  • the owner table, property table, equipment table, and maintenance company table are associated with each other.
  • an owner, a device, and a maintenance company may be associated with a property as key information.
  • the equipment management apparatus 200 performs processing including registration, change, deletion, etc. of information on the owner table, property table, equipment table, and maintenance company table.
  • an owner ID and owner information are registered in the owner table.
  • the owner information is information including the owner's name, contact information, and the like.
  • a property ID and property information are registered in the property table.
  • the property information is information including the name of the property such as a building name, the location of the property, and the like.
  • device information including device ID, model name, manufacturing number, etc., operation data, abnormality history information, and inspection support information are registered.
  • maintenance company information including maintenance company ID, company name, contact information, etc. is registered.
  • the owner table, property table, and device table are linked by property IDs.
  • the equipment table and the maintenance company table are linked by the equipment ID.
  • the operating data is, for example, data used for diagnosing refrigerant leakage in the air conditioner 100 .
  • the abnormality history information is information including, for example, an abnormality detection time, an abnormality type or code, an abnormal stop time, and an abnormal stop type or code.
  • the abnormality history information may include, for example, results of diagnosis of refrigerant leakage in the air conditioner 100, results of confirmation of refrigerant leakage by a maintenance company, results of repairs by a maintenance company, and the like.
  • the inspection support information includes information including a simple inspection date of the air conditioner 100, a history of the simple inspection, an inspection record table, and the like.
  • the simple inspection date, simple inspection history, and inspection record table of the air conditioner 100 may be information contained in a database managed by the device management apparatus 200 .
  • FIG. 3 is a schematic diagram showing a schematic configuration of the air conditioner 100 according to the embodiment.
  • the air conditioner 100 includes an outdoor unit 10, an indoor unit 20, and a circulation path section 18, for example.
  • Examples of the refrigerant 19 flowing through the circulation path portion 18 include a fluorine-based refrigerant with a low global warming potential (GWP), a hydrocarbon-based refrigerant, and the like.
  • GWP global warming potential
  • the outdoor unit 10 includes, for example, a housing 11, a compressor 12, a heat exchanger 13, a flow control valve 14, a blower 15, a four-way valve 16, and a controller 17.
  • a compressor 12 , a heat exchanger 13 , a flow control valve 14 , a blower 15 , a four-way valve 16 , and a controller 17 are accommodated inside the housing 11 .
  • the compressor 12 , the heat exchanger 13 , the flow control valve 14 and the four-way valve 16 are provided in a portion of the circulation path section 18 located inside the housing 11 .
  • Compressor 12 , heat exchanger 13 , flow control valve 14 , and four-way valve 16 are connected by a portion of circulation path portion 18 located inside housing 11 .
  • the four-way valve 16 is provided in a portion of the circulation path portion 18 that is connected to the refrigerant discharge side of the compressor 12 .
  • the four-way valve 16 switches the path of the refrigerant 19 flowing through the circulation path portion 18 between the path indicated by the solid line and the path indicated by the broken line.
  • a route indicated by a solid line is a route for returning the refrigerant 19 discharged from the compressor 12 to the compressor 12 via the heat exchanger 13 , the flow control valve 14 and the indoor unit 20 .
  • a path indicated by a dashed line is a path for returning the refrigerant 19 discharged from the compressor 12 to the compressor 12 via the indoor unit 20 , the flow control valve 14 and the heat exchanger 13 .
  • the indoor unit 20 includes a housing 21, a heat exchanger 22, a blower 23, and a controller 24.
  • the housing 21 accommodates the heat exchanger 22, the blower 23, and the controller 24 inside.
  • the indoor unit 20 is capable of a cooling operation for cooling the air in the room in which the indoor unit 20 is arranged and a heating operation for warming the air in the room in which the indoor unit 20 is arranged.
  • the communication unit 30 is a separate communication device from the indoor unit 20, and may be connected to a signal input/output unit of a control board on which the control unit 24 and the like are mounted. Also, the communication unit 30 may be a communication device that wirelessly communicates with a wireless LAN adapter connected to the control board and receives signals from the control board via the wireless LAN adapter.
  • the refrigerant 19 flows through the compressor 12, the heat exchanger 13 of the outdoor unit 10, the flow control valve 14, and the heat exchanger 22 of the indoor unit 20, as indicated by the solid line arrows. in that order back to the compressor 12 .
  • the heat exchanger 13 inside the outdoor unit 10 functions as a condenser
  • the heat exchanger 22 inside the indoor unit 20 functions as an evaporator.
  • the refrigerant 19 flows through the compressor 12, the heat exchanger 22 of the indoor unit 20, the flow control valve 14, and the heat exchanger 13 of the outdoor unit 10, as indicated by dashed arrows. in that order back to the compressor 12 .
  • the heat exchanger 13 inside the outdoor unit 10 functions as an evaporator
  • the heat exchanger 22 inside the indoor unit 20 functions as a condenser.
  • the control unit 24 is mounted on a circuit board inside the indoor unit 20 together with a storage unit (not shown).
  • the controller 24 controls each part of the indoor unit 20 .
  • the control unit 17 is mounted on a circuit board inside the outdoor unit 10 together with a storage unit (not shown).
  • the controller 17 controls each part of the outdoor unit 10 .
  • the control unit 24 and the control unit 17 are implemented by a processor such as a CPU (Central Processing Unit) executing a program stored in a program memory.
  • Software, firmware, or a combination of software and firmware is written as a program, and the program is stored in program memory.
  • the storage unit includes, for example, RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable and Programmable ROM), etc. , non-volatile or volatile semiconductors Realized by memory.
  • control unit 24 receives signals from various sensors (not shown) mounted on the outdoor unit 10 and the indoor unit 20 .
  • the control unit 24 controls the motor in the blower 23 .
  • the controller 24 supplies a control signal for operating the outdoor unit 10 to the controller 17 .
  • the control unit 17 controls the motor in the compressor 12 , the motor in the blower 15 , the actuator in the four-way valve 16 , and the actuator in the flow control valve 14 .
  • the sensors include, for example, temperature sensors that detect various temperatures such as the outside air temperature, room temperature, refrigerant pipe temperature, and shell temperature of the compressor 12, the drive amount of the blower 15, the drive amount of the blower 23, the drive amount of the compressor 12, and the like. , a sensor for detecting various operations such as the operation of the flow control valve 14, the operation of the four-way valve 16, and the like.
  • FIG. 4 is a block diagram showing an example of functional configurations of the air conditioner 100 and the device management device 200 according to the embodiment.
  • the air conditioner 100 includes, for example, a control unit 24, an acquisition unit 140, a processing unit 142, a storage unit 144, an external communication unit 150, and an in-home communication unit 152.
  • the communication unit 30 described above corresponds to the external communication unit 150 , but is not limited to this, and may communicate with the operation unit 110 or the information processing terminal 120 like the in-home communication unit 152 .
  • the acquiring unit 140 and the processing unit 142 are implemented by executing a program stored in a program memory by a processor such as a CPU.
  • Each unit such as the control unit 24, the acquisition unit 140, the processing unit 142, the storage unit 144, the external communication unit 150, and the in-home communication unit 152 is mounted on either the outdoor unit 10 or the indoor unit 20. It may be distributed to the outdoor unit 10 and the indoor unit 20 and mounted.
  • the control unit 24 outputs control signals to each unit of the air conditioner 100 .
  • Acquisition unit 140 acquires operation data from each unit of air conditioner 100 .
  • the operation data includes sensor information and operation information regarding the operation of each unit of air conditioner 100 .
  • the operation data includes, for example, the operation mode, the set temperature, the opening degree of the indoor linear expansion valve (LEV (Linear Expansion Valve)) in the indoor unit 20, the room temperature, the outside temperature, the temperature of the circulation path section 18, the temperature in the air conditioner 100
  • LEV Linear Expansion Valve
  • the refrigerant temperature of each part, the operating frequency of the compressor 12, the opening degrees of the flow control valve 14 and the four-way valve 16, etc. may be included.
  • the refrigerant temperature of each part in the air conditioner 100 includes, for example, the temperature of the refrigerant 19 in the heat exchanger 13 and the temperature of the refrigerant 19 discharged from the compressor 12 .
  • the operation information regarding the operation of each unit of air conditioner 100 may include a control signal output from control unit 24 and a signal indicating the amount of operation of each unit of air conditioner 100 .
  • the storage unit 144 stores the operating data acquired by the acquisition unit 140 .
  • the processing unit 142 performs various processes in the air conditioner 100 .
  • the external communication unit 150 is a communication unit that transmits operation data to the equipment management device 200 .
  • In-home communication unit 152 performs wired communication with operation unit 110 .
  • the in-home communication unit 152 communicates with the information processing terminal 120 using a short-range communication method.
  • the short-range communication system is, for example, Wi-Fi (registered trademark) or Bluetooth (registered trademark).
  • the device management apparatus 200 includes, for example, a communication unit 210, a collection unit 220, a processing unit 230, and a storage unit 240.
  • Communication unit 210 communicates with external communication unit 150 provided in air conditioner 100 .
  • the collection unit 220 collects operation data from the air conditioner 100 and stores the collected operation data in the storage unit 240 .
  • the processing unit 230 functions as a diagnosis unit that diagnoses whether or not the refrigerant 19 is leaking based on the operating data collected by the collection unit 220 . Diagnosis results are accumulated in the storage unit 240 . Accordingly, the storage unit 240 functions as an accumulation unit that accumulates the operating data collected by the collection unit 220 and the diagnosis results by the processing unit 230 .
  • the processing unit 230 functions as a notification unit that notifies the owner terminal device 300 related to the manager of the air conditioner 100 when it is diagnosed that the refrigerant 19 is leaking.
  • the device management device 200 provides information such as diagnostic results to the terminal device 400 for maintenance contractors.
  • FIG. 5 is a flowchart showing an example of processing for detecting refrigerant leakage by the device management apparatus 200 according to the embodiment.
  • the device management apparatus 200 determines whether or not the timing for collecting operation data has arrived (step S100).
  • the collection timing of the driving data may be set periodically, for example, at a set time in one day.
  • the equipment management apparatus 200 repeats the process of step S100 when the collection timing has not come.
  • the device management apparatus 200 may collect load information from the air conditioner 100 when the collection timing arrives, and change the operation mode of the air conditioner 100 based on the load information.
  • the load information may be information based on at least one of the blown air temperature with respect to the set temperature of the air conditioner 100, the amount of air blown, the amount of driving the compressor 12, the amount of driving the blower 15 or the blower 23, and the like. Operation modes include, for example, heating mode, cooling mode, powerful mode, and quiet mode.
  • the device management apparatus 200 temporarily postpones the collection of operation data when the load of the air conditioner 100 is higher than the set value, and collects the operation data when the load of the air conditioner 100 becomes lower than the set value. You can collect.
  • the equipment management device 200 collects the operational data and saves the collected operational data (step S102). For example, the device management apparatus 200 may transmit a request to the air conditioner 100 to transmit the uncollected operating data for one day to the device management apparatus 200 in response to the arrival of the collection timing. Further, the device management apparatus 200 may transmit the collection timing to the air conditioner 100 in advance, and start receiving the operation data automatically transmitted from the air conditioner 100 in response to the arrival of the collection timing.
  • the equipment management device 200 may set the collection timing and operation mode based on the user's operation or a request from the owner's terminal device 300 . As a result, based on the request, the device management apparatus 200 sets the collection timing for the air conditioners 100 installed in stores that are open at night, for example, so that they are operated in the diagnostic mode during the daytime hours. be able to.
  • the device management device 200 diagnoses whether or not leakage of the refrigerant 19 has occurred in the air conditioner 100 using the collected operation data (step S104).
  • the device management device 200 analyzes data such as the operation mode, set temperature, room temperature, outside temperature, and temperature of the circulation path section 18 of the air conditioner 100, for example, and executes an algorithm for diagnosing the presence or absence of leakage of the refrigerant 19. .
  • the device management apparatus 200 may execute an existing algorithm capable of estimating the amount of refrigerant.
  • the device management apparatus 200 may determine the amount of refrigerant in the air conditioner 100 by, for example, calculating the degree of supercooling of the refrigerant 19 and comparing the degree of supercooling with a determination threshold value.
  • the device management apparatus 200 calculates a predicted value of the refrigerant amount equivalent value from the normal operation data, and compares the refrigerant amount equivalent value calculated from the operation data acquired from the air conditioner 100 with the predicted value. , it may be diagnosed whether the refrigerant 19 is leaking.
  • the equipment management device 200 notifies the owner's terminal device 300 and the maintenance company's terminal device 400 of the leakage of the refrigerant 19 (step S108).
  • the device management apparatus 200 records the refrigerant leakage diagnosis result (step S110).
  • the device management apparatus 200 determines that the refrigerant 19 does not leak as a result of diagnosing the refrigerant leakage, it records the diagnosis result of the refrigerant leakage (step S110).
  • FIG. 6 is a diagram showing an example of data recorded in the device management apparatus 200 according to the embodiment.
  • the device management apparatus 200 records the ID of the air conditioner 100, the collection date of the operation data, and the stored operation data in the storage unit 240 in association with each other.
  • the equipment management apparatus 200 may further record the date of collection of the operation data and the operation data in association with the diagnosis result.
  • the device management apparatus 200 can use the data recorded in the storage unit 240 as data that substitutes for the simple inspection of the air conditioner 100 .
  • FIG. 7 is a sequence diagram showing an example of signal flow in the device management system according to the embodiment.
  • the air conditioner 100 transmits the operation data to the equipment management device 200 at collection timing or arbitrary timing.
  • the arbitrary timing may be, for example, the timing when the air conditioner 100 is operating.
  • the air conditioner 100 is activated based on determination that the operation data collection timing has arrived, or is activated in accordance with a request output from the communication unit 30 based on the arrival of the operation data collection timing. you can
  • the device management device 200 collects the operational data transmitted from the air conditioners 100 and accumulates the operational data.
  • the device management device 200 detects leakage of the refrigerant 19 using the accumulated operation data
  • the device management device 200 notifies the owner terminal device 300 and the maintenance company terminal device 400 .
  • the maintenance company terminal device 400 requests operation data and the like from the equipment management device 200 , and the equipment management device 200 transmits the operation data of the air conditioner 100 to the maintenance company terminal device 400 .
  • the maintenance company terminal device 400 can create a report including the analysis result of the operation data and proposal information including information indicating the details of the repair, and transmit the report and the proposal information to the owner terminal device 300. can.
  • the information notified from the equipment management device 200 to the owner terminal device 300 and the maintenance contractor terminal device 400 may include, for example, the ID of the air conditioner 100, property information where the air conditioner 100 is installed, and owner information. . Further, the equipment management device 200 may transmit the contact information of the maintenance company of the air conditioner 100 to the owner's terminal device 300 and cause the owner's terminal device 300 to display the contact information of the maintenance company.
  • the contact information of the maintenance company includes, for example, information such as the name of the maintenance company, the e-mail address of the contact, and the phone number of the company. This allows the owner to contact the maintenance company upon receiving the notification.
  • the equipment management device 200 also notifies the terminal device 400 for the maintenance company, so that the operation data of the air conditioner 100 in which leakage of the refrigerant 19 is detected is detected before the maintenance company repairs the air conditioner 100. etc. can be shared with the owner. As a result, consultations on repairs, etc., between the owner and maintenance contractors will be smoother, operation data will be analyzed in advance before going to the site, making it easier to identify the cause of the refrigerant leak, and repair inquiries and work will be carried out. It has the advantage of being able to reduce time and respond quickly.
  • FIG. 8 is a flowchart showing another example of processing for detecting refrigerant leakage by the device management device according to the embodiment.
  • the device management apparatus 200 determines whether or not the timing for collecting operation data has arrived (step S200).
  • the equipment management apparatus 200 repeats the process of step S200 when the collection timing has not arrived.
  • the device management apparatus 200 determines whether the air conditioner 100 is stopped (step S202).
  • the device management apparatus 200 may, for example, acquire operation data from the air conditioner 100 and determine whether the air conditioner 100 is stopped based on the operation data. Whether or not the air conditioner 100 is stopped may be determined based on the schedule information or the usage history of the air conditioner 100 . Furthermore, the equipment management apparatus 200 collects human detection information on the floor or room air-conditioned by the air conditioner 100, does not determine that it is stopped when there is a person, and does not determine that it is stopped when there is no person. can be determined. The human detection information may be the output of a human detection sensor, the locked state of a space such as a floor or a room, the business hours of a store, or the like. The equipment management apparatus 200 may collect human detection information from, for example, an information providing apparatus that acquires information from a building management system or the like.
  • the device management device 200 acquires environmental information such as weather forecast (temperature, weather, humidity) around the air conditioner 100 from an external information providing device, and determines the date and time suitable for diagnosing leakage of the refrigerant 19. good.
  • the device management apparatus 200 starts up the air conditioner 100 in the diagnosis mode when the date and time suitable for diagnosing the leakage of the refrigerant 19 has arrived.
  • the device management apparatus 200 operates in the diagnosis mode during a time period when the unit price of the power required to operate the air conditioner 100 is lower than the standard, or during a time period when renewable energy is available for the operation of the air conditioner 100.
  • the air conditioner 100 may be operated.
  • the charge unit price standard may be, for example, a preset unit price or an average unit price per day.
  • the device management device 200 may notify the owner terminal device 300 of the power consumption for the diagnostic mode operation.
  • the equipment management apparatus 200 may set the collection timing and operation mode during suspension based on a user's operation or a request from the owner's terminal device 300 . As a result, based on the request, the device management apparatus 200 sets the collection timing for the air conditioners 100 installed in stores that are open at night, for example, so that they are operated in the diagnostic mode during the daytime hours. be able to.
  • the device management device 200 collects the operation data from the air conditioner 100 and saves the collected operation data (step S204).
  • the device management apparatus 200 transmits to the air conditioner 100 a request to start the air conditioner 100 in diagnostic mode (step S208).
  • the diagnosis mode is an operation mode in which operation is performed to acquire operation data necessary for diagnosing leakage of the refrigerant 19 .
  • the diagnosis mode is, for example, an operation mode in which one or both of the cooling operation and the heating operation are performed for 10 minutes.
  • the device management device 200 collects the operating data from the air conditioner 100 and stores the collected operating data (step S208).
  • the device management device 200 diagnoses leakage of the refrigerant 19 using the operation data (step S210). As a result of the diagnosis, the device management apparatus 200 determines whether or not the refrigerant 19 is leaking (step S212). When determining that the refrigerant 19 is not leaking, the device management apparatus 200 records the refrigerant leakage diagnosis result (step S216), and returns the process to step S200. When determining that the refrigerant 19 is leaking, the device management device 200 notifies the owner's terminal device 300 and the maintenance company's terminal device 400 (step S214). In addition, the equipment management apparatus 200 records the refrigerant leakage diagnosis result (step S216).
  • FIG. 9 is a sequence diagram showing an example of signal flow in the device management system according to the embodiment.
  • the device management apparatus 200 transmits a start request to the air conditioner 100 when the air conditioner 100 is stopped.
  • the air conditioner 100 When the air conditioner 100 is activated, it notifies the user that the air conditioner 100 will be operated in the diagnosis mode.
  • the air conditioner 100 may control the operation unit 110 to give the notification by voice or display, and may control the information processing terminal 120 to give the notification by voice or display.
  • the air conditioner 100 starts up in the diagnosis mode, transmits the operation data to the device management device 200, and stops after the diagnosis mode ends.
  • the equipment management device 200 collects the operation data transmitted from the air conditioner 100 and accumulates the operation data.
  • the device management device 200 has transmitted the activation request to the air conditioner 100, but the present invention is not limited to this.
  • the air conditioner 100 may start up at a preset time, start operating in the diagnosis mode, and store operating data.
  • a communication device capable of communicating with the air conditioner 100 and the equipment management device 200 starts the air conditioner 100 by transmitting a start request to the air conditioner 100, and the operation data saved by the air conditioner 100 is transmitted to the air conditioner 100. It may be transmitted to the device management apparatus 200 .
  • This communication device is, for example, a communication device that communicates with the air conditioner 100 that does not have a function of communicating with the device management device 200 , and may be a communication device that is separate from the air conditioner 100 .
  • steps S100 and S110 in FIG. 5 may be executed by the air conditioner 100 or a communication device separate from the air conditioner 100, and the collected operation data may be transmitted to the device management device 200.
  • the device management system can diagnose refrigerant leakage using the air conditioner 100 or a communication device separate from the air conditioner 100. It can be performed.
  • the device management system performs refrigerant Leak diagnostics and operational data can be collected.
  • the device management device 200 performs refrigerant leakage diagnosis processing, but the present invention is not limited to this.
  • the refrigerant leakage diagnosis may be performed in the air conditioner 100 from which the operating data is acquired.
  • the air conditioner 100 can cause the device management apparatus 200 to accumulate the operation data and the refrigerant leakage diagnosis result by transmitting the refrigerant leakage diagnosis result to the device management apparatus 200 .
  • the refrigerant leakage diagnosis may be performed by a communication device separate from the air conditioner 100 that communicates with the air conditioner 100 .
  • the communication device acquires operation data from the air conditioner 100 , diagnoses refrigerant leakage using the acquired operation data, and transmits the refrigerant leakage diagnosis result to the device management apparatus 200 .
  • the operating time in the diagnostic mode is the time, for example, 10 minutes to 1 hour, during which operating data for diagnosing refrigerant leakage from the air conditioner 100 can be acquired.
  • the diagnostic mode operating time may be set by the device management apparatus 200 .
  • the device management apparatus 200 may set the operating time of the diagnostic mode based on the type of air conditioner 100 .
  • the device management apparatus 200 may set, for example, a relatively longer operation time for an air conditioner 100 that may fail if the operation time is short, than for other air conditioners 100 .
  • the equipment management apparatus 200 operates the air conditioner 100 for a short period of time such as 5 minutes, for example, and uses operation data acquired to diagnose refrigerant leakage.
  • the operation data may be reacquired by operating the air conditioner 100 for a long period of time, and refrigerant leakage may be rediagnosed using the reacquired operation data.
  • Refrigerant leakage diagnosis may be performed not only by one device but also by multiple devices.
  • the communication unit 30 or the air conditioner 100 diagnoses refrigerant leakage, and when it is diagnosed that there is refrigerant leakage, the refrigerant leakage diagnosis result and operation data are transmitted to the device management apparatus 200 .
  • the equipment management apparatus 200 re-diagnoses the refrigerant leakage when receiving the refrigerant leakage diagnosis result and the operation data.
  • the device management device 200 can notify the owner's terminal device 300 and the maintenance company's terminal device 400 when it is diagnosed that there is a refrigerant leakage as a result of re-diagnosing the refrigerant leakage.
  • the device management device 200 diagnoses refrigerant leakage and diagnoses that there is a refrigerant leakage
  • the device management device 200 notifies the communication unit 30 of the refrigerant leakage, and the communication unit 30 or the air conditioner 100 is operated.
  • a refrigerant leakage diagnosis may be performed in real time in parallel with data acquisition.
  • the communication unit 30 mounted in the air conditioner 100 that exchanges heat between the refrigerant 19 and the air by circulating the refrigerant 19 sends a signal to the air conditioner 100.
  • operation data relating to the operation of is collected, whether or not the refrigerant 19 is leaking is diagnosed based on the collected operation data, and the collected operation data and the diagnosis result by the processing unit 230 are accumulated.
  • the device management device 200 diagnoses that the refrigerant 19 is leaking, the device management device 200 notifies the owner terminal device 300 of this fact.
  • the refrigerant leakage detection of the air conditioner can be remotely performed, thereby omitting simple inspection of the air conditioner.
  • the burden on the device manager (owner) for simple inspection can be reduced.
  • the owner can confirm the diagnosis result of the device management device 200 by using the owner terminal device 300 and can grasp the operating state of the air conditioner 100 .
  • refrigerant leakage diagnosis is performed by the device management device 200 instead of the air conditioner 100 or the communication unit 30, so the refrigerant leakage diagnosis can be performed by updating the algorithm to the latest one. can be done.
  • the maintenance company can receive compensation for the service from the owner by providing the service of diagnosing and inspecting refrigerant leakage.
  • the manufacturer of the air conditioner 100 or the equipment management device 200 can provide a maintenance company with application software for diagnosing and inspecting refrigerant leakage. You can receive compensation for the application software from the vendor.
  • the equipment management device 200 of the embodiment it is possible to notify the maintenance contractor terminal device 400 in addition to the owner terminal device 300 .
  • the maintenance company can promptly repair or replace the refrigerant leakage.
  • information including the contact information of the maintenance company is notified to the owner terminal device 300, so that the owner can smoothly contact and consult with the maintenance company about refrigerant leakage. be able to.
  • the instruction to start the operation of the air conditioner 100 is transmitted to the air conditioner 100 while the air conditioner 100 is stopped, and the air conditioner 100 that starts the operation Driving data can be collected from
  • the equipment management apparatus 200 even if the air conditioner 100 is not operated, it is possible to periodically diagnose refrigerant leakage for simple inspection, such as once a day.
  • the device management apparatus 200 it is possible to avoid causing noise and discomfort to the user by performing operation for diagnosing refrigerant leakage during a time period when the user is not present.
  • the detection information of people in the space where air is to be The mode of operation of machine 100 can be changed.
  • the device management apparatus 200 it is possible to avoid causing noise and discomfort to the user due to the operation for diagnosing refrigerant leakage.
  • the load information of the air conditioner 100 is collected from among the operation data, and the timing for starting the operation of the air conditioner 100 or the operation mode of the air conditioner 100 is set based on the load information. can be changed.
  • the device management apparatus 200 it is possible to suppress the noise and discomfort caused to the user due to the operation for diagnosing refrigerant leakage.
  • the device management apparatus 200 avoids the operation for diagnosing refrigerant leakage when the load on the air conditioner 100 is high, and performs the operation for diagnosing refrigerant leakage when the load on the air conditioner 100 is low. It can be carried out.
  • the timing for starting the operation of the air conditioner 100 or the operation mode of the air conditioner 100 is determined based on the information about the environment around the air conditioner 100 provided from the information providing device. can be changed.
  • operation for diagnosing refrigerant leakage can be performed in an environment such as room temperature or humidity suitable for diagnosing refrigerant leakage.
  • the device management apparatus 200 sets the air conditioner 100 to operate during a time period when the unit price of the electricity required to operate the air conditioner 100 is lower than the standard, or during a time period when renewable energy is available for operation of the air conditioner 100. It is possible to set the timing for the machine 100 to start operating. Thereby, according to the equipment management apparatus 200, the electric power charge for diagnosing refrigerant leakage can be suppressed.
  • the air conditioner 100 that exchanges heat between the refrigerant 19 and air by circulating the refrigerant 19, the communication unit 30 that can communicate with the air conditioner 100, and the communication unit 30
  • a device management device 200 capable of communication is provided, and the device management device 200 accumulates operation data regarding the operation of the air conditioner 100 and diagnosis results of diagnosing whether or not the refrigerant 19 is leaking based on the operation data.
  • the owner terminal device 300 of the air conditioner 100 can be notified when it is diagnosed that the refrigerant 19 is leaking.
  • this equipment management system it is possible to omit a simple inspection of the air conditioner by remotely detecting refrigerant leakage from the air conditioner. As a result, the device management system can reduce the burden on the device manager (owner).
  • any one of the air conditioner 100, the communication unit 30, and the device management device 200 may diagnose whether the refrigerant 19 is leaking based on the operation data.
  • the diagnosis result is transmitted from the air conditioner 100 to the device management device 200 via the communication unit 30, and the communication unit
  • the diagnosis result is transmitted from the communication unit 30 to the device management device 200 .
  • the air conditioner 100 or the communication unit 30 can diagnose refrigerant leakage.
  • the air conditioner 100 that exchanges heat between the refrigerant 19 and air is operated by circulating the refrigerant 19, and the communication unit 30 capable of communicating with the air conditioner 100 operates the air conditioner 100. It is diagnosed whether the refrigerant 19 is leaking based on the collected operation data, the collected operation data and the diagnosis result are accumulated, and it is diagnosed that the refrigerant 19 is leaking.
  • a data processing method of the device management system can be realized in which the owner terminal device 300 is notified. According to the data processing method of the device management system, it is possible to omit the simple inspection of the air conditioner by remotely detecting the refrigerant leakage of the air conditioner. As a result, according to the data processing method of the device management system, the burden on the device manager (owner) can be reduced.
  • the refrigerant leakage can be diagnosed and inspected by connecting the communication unit 30. can provide services.
  • the manufacturer of the communication device can make a profit by selling the communication unit 30 separately and providing a service of diagnosing and inspecting refrigerant leakage.
  • the air conditioner 100 is activated based on the determination that the timing for collecting the operation data has come, or when the timing for collecting the operation data from the communication unit 30 has come. It may be activated according to a request output based on

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

Un dispositif de gestion d'équipement selon la présente divulgation comprend : une unité de collecte qui collecte des données de fonctionnement relatives au fonctionnement d'un climatiseur, qui échange de la chaleur entre un fluide frigorigène et de l'air par circulation du fluide frigorigène, provenant d'un dispositif de communication installé dans le climatiseur ; une unité de diagnostic qui diagnostique si le fluide frigorigène fuit ou non sur la base des données de fonctionnement ; une unité d'accumulation qui accumule les données de fonctionnement et les résultats de diagnostic ; et une unité de notification qui notifie à un terminal associé à l'administrateur du climatiseur qu'une fuite de fluide frigorigène a été diagnostiquée.
PCT/JP2022/001032 2022-01-14 2022-01-14 Dispositif de gestion d'équipement, système de gestion d'équipement et procédé de traitement de données pour système de gestion d'équipement WO2023135722A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2022/001032 WO2023135722A1 (fr) 2022-01-14 2022-01-14 Dispositif de gestion d'équipement, système de gestion d'équipement et procédé de traitement de données pour système de gestion d'équipement
JP2023573730A JPWO2023135722A1 (fr) 2022-01-14 2022-01-14

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PCT/JP2022/001032 WO2023135722A1 (fr) 2022-01-14 2022-01-14 Dispositif de gestion d'équipement, système de gestion d'équipement et procédé de traitement de données pour système de gestion d'équipement

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002372317A (ja) * 2001-06-19 2002-12-26 Toshiba Kyaria Kk スプリット形空気調和機
JP2011226694A (ja) * 2010-04-19 2011-11-10 Mitsubishi Electric Corp 空気調和機、機器システム、情報管理システム、空気調和機の制御方法
JP2018119755A (ja) * 2017-01-26 2018-08-02 シャープ株式会社 空気調和システム
JP2021042949A (ja) * 2019-09-09 2021-03-18 ダイキン工業株式会社 冷媒量判定装置、方法、およびプログラム
JP2021134974A (ja) * 2020-02-26 2021-09-13 株式会社東芝 情報処理装置、情報処理システム、情報処理方法及びプログラム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002372317A (ja) * 2001-06-19 2002-12-26 Toshiba Kyaria Kk スプリット形空気調和機
JP2011226694A (ja) * 2010-04-19 2011-11-10 Mitsubishi Electric Corp 空気調和機、機器システム、情報管理システム、空気調和機の制御方法
JP2018119755A (ja) * 2017-01-26 2018-08-02 シャープ株式会社 空気調和システム
JP2021042949A (ja) * 2019-09-09 2021-03-18 ダイキン工業株式会社 冷媒量判定装置、方法、およびプログラム
JP2021134974A (ja) * 2020-02-26 2021-09-13 株式会社東芝 情報処理装置、情報処理システム、情報処理方法及びプログラム

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