CN111780355A - Method and device for monitoring running state of air conditioner - Google Patents

Method and device for monitoring running state of air conditioner Download PDF

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CN111780355A
CN111780355A CN202010698915.XA CN202010698915A CN111780355A CN 111780355 A CN111780355 A CN 111780355A CN 202010698915 A CN202010698915 A CN 202010698915A CN 111780355 A CN111780355 A CN 111780355A
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air
air conditioner
indoor unit
energy efficiency
unit
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翟玉启
戴建忠
曹扬
马耀家
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Jiangsu Suxing Asset Management Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46Improving electric energy efficiency or saving
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32Responding to malfunctions or emergencies
    • F24F11/38Failure diagnosis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52Indication arrangements, e.g. displays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61Control or safety arrangements characterised by user interfaces or communication using timers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data

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  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a method and a device for monitoring the running state of an air conditioner, wherein the method comprises the steps of detecting the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit; calculating the cooling capacity or the heating capacity of the whole air conditioning unit according to the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit; calculating an air conditioner energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit; and judging the running state of the air conditioner according to the energy efficiency index of the air conditioner. The method and the device realize the fault prejudgment of the VRV air conditioner, make the operation and maintenance personnel conveniently make reasonable corresponding measures in advance, avoid the afterward maintenance (emergency repair), and improve the operation reliability of the VRV air conditioner.

Description

Method and device for monitoring running state of air conditioner
Technical Field
The invention relates to the field of air conditioners, in particular to a method and a device for monitoring the running state of an air conditioner.
Background
VRV (variable Refrigerant volume) air-conditioning system-variable Refrigerant flow multiple air-conditioning system (multiple on-line for short), and by controlling the Refrigerant circulation quantity of compressor and the Refrigerant flow quantity entering indoor heat exchanger, it can meet the requirements of indoor cold and heat load. At present, the VRV air conditioner maintenance mode is still the traditional after repair, namely the equipment is repaired again when being damaged, so that the work is not planned and the operation and maintenance are inconvenient.
Disclosure of Invention
In order to solve the problem that the operation and maintenance of the VRV air conditioner are inconvenient at present, the embodiment of the application provides a method and a device for monitoring the operation state of the air conditioner, so that the online monitoring of the operation energy efficiency of the air conditioner is realized, the fault prejudgment of the VRV air conditioner is realized through the early warning function of the system energy efficiency value, and the operation and maintenance personnel can conveniently make reasonable measures in advance.
In a first aspect, an embodiment of the present application provides a method for monitoring an operating state of an air conditioner, including:
detecting the air temperature of the outlet air and the return air of each indoor unit of the air conditioner and the air quantity of each indoor unit;
calculating the cooling capacity or the heating capacity of the whole air conditioning unit according to the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit;
calculating an air conditioner energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit;
and judging the running state of the air conditioner according to the air conditioner energy efficiency index.
Wherein, calculate whole air conditioning unit refrigeration volume or heating volume according to each indoor set air-out of air conditioner and the air temperature of return air, each indoor set amount of wind, include:
calculating the refrigerating capacity or heating capacity of the indoor units in starting operation according to the temperature difference between the air outlet and the air supply of each indoor unit and the air quantity of each indoor unit;
the refrigerating capacity or the heating capacity of the whole air conditioning unit in the preset time period can be calculated by accumulating the refrigerating capacity or the heating capacity of the indoor units running in the system.
Wherein, the calculating the air conditioner energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit comprises the following steps:
and taking the ratio of the refrigerating capacity or the heating capacity of the whole air conditioning unit to the total power consumption as an air conditioning energy efficiency index.
The calculation formula of the air conditioner energy efficiency index is as follows:
Figure BDA0002592319630000021
Figure BDA0002592319630000022
in the formula:
EER: the refrigeration energy efficiency ratio of the air conditioner; COP ratio of heating energy efficiency of air conditioner
V: the wind speed of the indoor unit; s: the area of an air outlet of the single indoor unit; n: the number of indoor units; h: running time; ρ: the density of the air; c: air specific heat capacity; delta t is the temperature difference between the air outlet and the air return of the indoor unit; u: an operating voltage; a: the current is run.
Wherein, the judging the air conditioner running state according to the air conditioner energy efficiency index comprises:
and when the air conditioner energy efficiency index is smaller than a preset value, the running state of the air conditioner is abnormal, and an alarm prompt is given.
Wherein the preset value is 2.
In a second aspect, an embodiment of the present application provides an apparatus for monitoring an operating state of an air conditioner, including:
the detection unit is used for detecting the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air quantity of each indoor unit;
the first calculating unit is used for calculating the refrigerating capacity or the heating capacity of the whole air conditioning unit according to the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit;
the second calculating unit is used for calculating an air conditioner energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit;
and the judging unit is used for judging the running state of the air conditioner according to the air conditioner energy efficiency index.
Wherein the first computing unit is to:
calculating the refrigerating capacity or heating capacity of the indoor units in starting operation according to the temperature difference between the air outlet and the air supply of each indoor unit and the air quantity of each indoor unit;
the refrigerating capacity or the heating capacity of the whole air conditioning unit in the preset time period can be calculated by accumulating the refrigerating capacity or the heating capacity of the indoor units running in the system.
In a third aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, and the computer program is used for implementing the steps of any one of the above methods when executed by a processor.
In a fourth aspect, an embodiment of the present application provides an air conditioner, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of any one of the methods described above when executing the program.
The method and the device for monitoring the running state of the air conditioner have the following beneficial effects:
the method comprises the steps of detecting the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit; calculating the cooling capacity or the heating capacity of the whole air conditioning unit according to the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit; calculating an air conditioner energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit; and judging the running state of the air conditioner according to the energy efficiency index of the air conditioner. The method and the device realize the fault prejudgment of the VRV air conditioner, make the operation and maintenance personnel conveniently make reasonable corresponding measures in advance, avoid the afterward maintenance (emergency repair), and improve the operation reliability of the VRV air conditioner.
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FIG. 1 is a schematic flow chart illustrating a method for monitoring an operating state of an air conditioner according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an apparatus for monitoring an operating state of an air conditioner according to an embodiment of the present application.
Detailed Description
The present application is further described with reference to the following figures and examples.
In the following description, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance. The following description provides embodiments of the invention, which may be combined or substituted for various embodiments, and this application is therefore intended to cover all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then this application should also be considered to include an embodiment that includes one or more of all other possible combinations of A, B, C, D, even though this embodiment may not be explicitly recited in text below.
The following description provides examples, and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements described without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than the order described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.
The traditional VRV air conditioner operation and maintenance still depends on manual on-site inspection to know the operation condition, the inspection result only reflects the operation state of a time node, the operation state of a VRV air conditioner system cannot be monitored on line in real time, and corresponding operation state analysis and fault prediction cannot be provided, so that the VRV air conditioner maintenance mode is mainly after-repair, and the maintenance work is not planned.
Although the occurrence and development of the fault of the VRV air-conditioning equipment have strong randomness, the fault has a slower development process, various early symptoms are generated in the process, namely gradual change of system temperature and current physical parameters, the parameters are correspondingly changed according to the running state of the equipment, and the latent fault is discovered early according to the size and the change trend of the parameters. Therefore, the operation state of the equipment is monitored by comprehensively and accurately collecting the parameters and objectively observing and analyzing the parameters, the reliability of the equipment is timely judged, and the problem that small faults are dragged into large faults is avoided. The objective requirement and possibility become power for researching and developing VRV air conditioner energy efficiency monitoring, and the method aims to timely and effectively monitor and analyze the running state of the equipment, so that latent faults of the equipment can be found, and the equipment maintenance mode is changed from a post-repair (emergency repair) mode to a state maintenance mode.
As shown in fig. 1, the method for monitoring the operating state of the air conditioner includes the steps of: s101, detecting the air temperature of the outlet air and the return air of each indoor unit of the air conditioner and the air volume of each indoor unit; s103, calculating the refrigerating capacity or the heating capacity of the whole air conditioning unit according to the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit; s105, calculating an air conditioner energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit; and S107, judging the air conditioner running state according to the air conditioner energy efficiency index. Each step is described below.
And S101, detecting the air temperature of the outlet air and the return air of each indoor unit of the air conditioner and the air volume of each indoor unit.
The VRV air conditioning system adopts a variable refrigerant flow technology, one or more outdoor units convey refrigerants to a plurality of indoor terminals through pipelines, the refrigerants generate refrigeration and heating in the process of evaporation (liquid state is converted into gaseous state) or condensation (gaseous state is converted into liquid state) in the indoor terminals, the refrigeration amount of the refrigerant cannot be calculated by directly detecting the temperature and the flow rate like water because the states (liquid state and gaseous state are converted into each other) of the refrigerants are not fixed, the refrigeration amount of the refrigerant can not be calculated by detecting the air temperature of the air outlet and the air return of the indoor units, and the air volume of the indoor units, so that the subsequent VRV air conditioning energy efficiency index calculation is realized.
And S103, calculating the refrigerating capacity or the heating capacity of the whole air conditioning unit according to the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit.
The steps include, for example: calculating the refrigerating capacity or heating capacity of the indoor units in starting operation according to the temperature difference between the air outlet and the air supply of each indoor unit and the air quantity of each indoor unit; the refrigerating capacity or the heating capacity of the whole air conditioning unit in the preset time period can be calculated by accumulating the refrigerating capacity or the heating capacity of the indoor units running in the system.
The refrigerating/heating capacity of the indoor units running in the system can be calculated according to the temperature difference between the air outlet and the air supply of each indoor unit and the air volume of each indoor unit. The refrigerating/heating capacity of the whole air conditioning unit in the period can be calculated by performing weighted accumulation calculation on the refrigerating/heating capacity of the indoor unit running in the system.
And S105, calculating an air conditioning energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit.
The steps include, for example: and taking the ratio of the refrigerating capacity or the heating capacity of the whole air conditioning unit to the total power consumption as an air conditioning energy efficiency index.
The calculation formula of the air conditioner energy efficiency index is as follows:
Figure BDA0002592319630000061
Figure BDA0002592319630000062
in the formula: EER: the refrigeration energy efficiency ratio of the air conditioner; COP ratio of heating energy efficiency of air conditioner
V: the wind speed of the indoor unit; s: the area of an air outlet of the single indoor unit; n: the number of indoor units; h: running time; ρ: the density of the air; c: air specific heat capacity; delta t is the temperature difference between the air outlet and the air return of the indoor unit; u: an operating voltage; a: the current is run.
In the cooling mode, Δ t is the air supply temperature-return air temperature of the indoor unit, and in the heating mode, Δ t is the air return temperature-supply air temperature of the indoor unit. V is the wind speed pattern x 1, 1 is the conversion factor. Wind speed mode: the running wind speed of the indoor unit, namely the read high, medium and low running wind speeds, can obtain the corresponding wind quantity according to the indoor unit anemometer of the VRV air conditioner.
In some embodiments, the air conditioning energy efficiency index is a ratio of a total amount of cooling (heating) of an air conditioner to a total amount of power consumption, the total amount of cooling (heating) of the air conditioner is a sum of cooling (heating) of each indoor unit, and the total amount of power consumption is a sum of power consumption consumed by each outdoor unit and power consumption consumed by each indoor unit.
And S107, judging the air conditioner running state according to the air conditioner energy efficiency index.
The step includes, for example, when the air conditioner energy efficiency index is smaller than a preset value, the air conditioner running state is abnormal, and an alarm prompt is given. The preset value may be, for example, 2.
According to the energy efficiency monitoring method and device, energy efficiency monitoring, energy efficiency curve display, energy efficiency query, energy efficiency statistics and energy efficiency early warning value setting can be achieved.
The invention relates to an equipment state online monitoring method which utilizes system software to collect air conditioner operation data, calculates and outputs an energy efficiency ratio and judges the operation health condition of a VRV air conditioner according to the energy efficiency value (for example, the system sets a monitoring energy efficiency ratio early warning value to be 2, and when the VRV air conditioner energy efficiency ratio is lower than 2, the system gives an alarm).
The characteristics of the health condition of the VRV air conditioner are judged by monitoring the energy efficiency ratio: the energy efficiency ratio is the ratio of the VRV air conditioner refrigerating (heating) quantity to the power consumption, the key index in the calculation of the refrigerating (heating) quantity is the temperature difference between the air inlet and the air return of the indoor unit of the system, and the temperature difference directly reflects the refrigerating (heating) quantity of the air conditioner; the key index in the consumed power is the system running current, and the size of the running current directly reflects the consumed power of the system. Therefore, the energy efficiency ratio can comprehensively and comprehensively reflect the operation condition of the VRV air conditioner. Through the early warning function of the system energy efficiency value, the fault prejudgment of the VRV air-conditioning equipment is realized, and the operation and maintenance personnel can conveniently make reasonable response measures in advance.
The problem that the operation energy efficiency of the VRV air conditioner cannot be monitored is solved, and the operation health condition of the VRV air conditioner is monitored and judged according to the change of the energy efficiency value. This VRV air conditioner efficiency monitoring system realizes VRV air conditioner equipment trouble prejudgement through monitoring VRV air conditioner efficiency ratio change, and system efficiency value early warning function, makes things convenient for fortune dimension personnel to formulate reasonable countermeasure in advance, avoids after maintenance (emergency repair), has improved VRV air conditioner operational reliability.
As shown in fig. 2, an apparatus for monitoring an operating state of an air conditioner according to the present application includes: the detection unit 201 is used for detecting the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit; the first calculating unit 202 is used for calculating the refrigerating capacity or the heating capacity of the whole air conditioning unit according to the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit; the second calculating unit 203 is used for calculating an air conditioner energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit; and the judging unit 204 is used for judging the air conditioner running state according to the air conditioner energy efficiency index.
Wherein the first computing unit is configured to: calculating the refrigerating capacity or heating capacity of the indoor units in starting operation according to the temperature difference between the air outlet and the air supply of each indoor unit and the air quantity of each indoor unit; the refrigerating capacity or the heating capacity of the whole air conditioning unit in the preset time period can be calculated by accumulating the refrigerating capacity or the heating capacity of the indoor units running in the system.
The application also provides an air conditioner, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the steps of any one of the methods when executing the program.
The invention calculates the VRV air conditioner energy efficiency ratio by collecting the VRV air conditioner operation data (temperature, wind speed, current and voltage), aims to realize the online monitoring of the VRV air conditioner energy efficiency and the early warning function of the system energy efficiency value, realizes the fault prejudgment of the VRV air conditioner equipment, is convenient for operation and maintenance personnel to make reasonable response measures in advance, changes the maintenance mode (from after maintenance to state maintenance), and improves the health level of the equipment.
In the present application, the embodiment of the apparatus for monitoring the operation state of the air conditioner is basically similar to the embodiment of the method for monitoring the operation state of the air conditioner, and reference is made to the description of the embodiment of the method for monitoring the operation state of the air conditioner for relevant points.
It is clear to a person skilled in the art that the solution according to the embodiments of the invention can be implemented by means of software and/or hardware. The "unit" and "module" in this specification refer to software and/or hardware that can perform a specific function independently or in cooperation with other components, where the hardware may be, for example, an FPGA (Field-Programmable Gate Array), an IC (Integrated Circuit), or the like.
Each processing unit and/or module according to the embodiments of the present invention may be implemented by an analog circuit that implements the functions described in the embodiments of the present invention, or may be implemented by software that executes the functions described in the embodiments of the present invention.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the above method steps for monitoring the operating state of an air conditioner. The computer-readable storage medium may include, but is not limited to, any type of disk including floppy disks, optical disks, DVD, CD-ROMs, microdrive, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
All functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A method for monitoring the operating state of an air conditioner is characterized by comprising the following steps:
detecting the air temperature of the outlet air and the return air of each indoor unit of the air conditioner and the air quantity of each indoor unit;
calculating the cooling capacity or the heating capacity of the whole air conditioning unit according to the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit;
calculating an air conditioner energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit;
and judging the running state of the air conditioner according to the air conditioner energy efficiency index.
2. The method for monitoring the operating condition of the air conditioner as claimed in claim 1, wherein the calculating the cooling capacity or the heating capacity of the whole air conditioning unit according to the air temperature of the outlet air and the return air of each indoor unit of the air conditioner and the air volume of each indoor unit comprises:
calculating the refrigerating capacity or heating capacity of the indoor units in starting operation according to the temperature difference between the air outlet and the air supply of each indoor unit and the air quantity of each indoor unit;
the refrigerating capacity or the heating capacity of the whole air conditioning unit in the preset time period can be calculated by accumulating the refrigerating capacity or the heating capacity of the indoor units running in the system.
3. The method for monitoring the operating state of the air conditioner according to claim 1 or 2, wherein the calculating the air conditioner energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit comprises the following steps:
and taking the ratio of the refrigerating capacity or the heating capacity of the whole air conditioning unit to the total power consumption as an air conditioning energy efficiency index.
4. The method for monitoring the operating state of the air conditioner according to claim 3, wherein the calculation formula of the air conditioner energy efficiency index is as follows:
Figure FDA0002592319620000011
Figure FDA0002592319620000012
in the formula:
EER: the refrigeration energy efficiency ratio of the air conditioner; COP ratio of heating energy efficiency of air conditioner
V: the wind speed of the indoor unit; s: the area of an air outlet of the single indoor unit; n: the number of indoor units; h: running time; ρ: the density of the air; c: air specific heat capacity; delta t is the temperature difference between the air outlet and the air return of the indoor unit; u: an operating voltage; a: the current is run.
5. The method for monitoring the operating state of the air conditioner according to claim 1 or 2, wherein the judging the operating state of the air conditioner according to the air conditioner energy efficiency index comprises:
and when the air conditioner energy efficiency index is smaller than a preset value, the running state of the air conditioner is abnormal, and an alarm prompt is given.
6. The method of claim 5, wherein the preset value is 2.
7. An apparatus for monitoring an operation state of an air conditioner, comprising:
the detection unit is used for detecting the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air quantity of each indoor unit;
the first calculating unit is used for calculating the refrigerating capacity or the heating capacity of the whole air conditioning unit according to the air temperature of the air outlet and the air return of each indoor unit of the air conditioner and the air volume of each indoor unit;
the second calculating unit is used for calculating an air conditioner energy efficiency index according to the refrigerating capacity or the heating capacity of the whole air conditioning unit;
and the judging unit is used for judging the running state of the air conditioner according to the air conditioner energy efficiency index.
8. The apparatus for monitoring an operating condition of an air conditioner according to claim 7, wherein the first calculating unit is configured to:
calculating the refrigerating capacity or heating capacity of the indoor units in starting operation according to the temperature difference between the air outlet and the air supply of each indoor unit and the air quantity of each indoor unit;
the refrigerating capacity or the heating capacity of the whole air conditioning unit in the preset time period can be calculated by accumulating the refrigerating capacity or the heating capacity of the indoor units running in the system.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
10. An air conditioner comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method of any one of claims 1-6 are implemented when the program is executed by the processor.
CN202010698915.XA 2020-07-20 2020-07-20 Method and device for monitoring running state of air conditioner Pending CN111780355A (en)

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CN113175738A (en) * 2021-04-21 2021-07-27 海信(山东)空调有限公司 Method for calculating capacity energy efficiency of air conditioner, computer storage medium and air conditioner
CN113465140A (en) * 2021-06-08 2021-10-01 深圳市英威腾网能技术有限公司 Air conditioner monitoring method and device, air conditioner controller and storage medium

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