CN114543256A - Household charging method and device for multi-split air conditioner and multi-split air conditioner - Google Patents
Household charging method and device for multi-split air conditioner and multi-split air conditioner Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 63
- 239000003507 refrigerant Substances 0.000 claims abstract description 51
- 238000004781 supercooling Methods 0.000 claims abstract description 18
- 238000013528 artificial neural network Methods 0.000 claims description 15
- 238000010606 normalization Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 15
- 230000006870 function Effects 0.000 claims description 8
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- 238000004364 calculation method Methods 0.000 abstract description 17
- 238000010586 diagram Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 9
- 238000004378 air conditioning Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
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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
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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
- F24F11/62—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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
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Abstract
The application relates to the technical field of intelligent household appliances, and discloses a household charging method for a multi-split air conditioner, which comprises the steps of determining the mass flow of refrigerants of each indoor unit according to the inlet pressure, the inlet supercooling degree, the pressure drop, the opening degree and the drift diameter of each indoor unit throttling device; calculating the distribution coefficient of each indoor unit according to the mass flow of the refrigerant of each indoor unit; and carrying out household charging according to the distribution coefficient of each indoor unit. And carrying out household charging through the distribution coefficients of the indoor units. The mass flow of the refrigerant of each indoor unit is calculated by including the parameters related to the flow characteristics of the throttling devices, so that the calculation precision is higher, the accuracy of the refrigerant flow calculation of the throttling devices of the indoor units by the multi-split air conditioner is improved, and the accuracy of household charging is further improved. The application also discloses a device for household charging of the multi-split air conditioner and the multi-split air conditioner.
Description
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to a method and a device for household charging of a multi-split air conditioner and the multi-split air conditioner.
Background
At present, a multi-split air conditioning system is used as a multi-terminal refrigerating/heating system with variable refrigerant flow, is flexible to control, saves energy, is low in operating cost, and is increasingly widely applied to small and medium-sized buildings. In order to realize the measurement and management of building energy consumption, the measurement of the performance of the multi-split air conditioning system and the measurement of energy consumption are particularly important. The traditional household charging method based on the multi-split air conditioning system comprises an area allocation method and a time type charging method. The area allocation method is to allocate the electric quantity of the air conditioning unit according to the use area of the user, but the area allocation method does not consider the use habit of the user, so that the user is likely to consume maliciously and waste energy. The time type charging method is to allocate the electric quantity of the air conditioning unit according to the service time of the user, but the time type charging method only adds the service time of the user without considering the refrigeration/heat output by the indoor unit, thereby affecting the comfort experience of the user and easily causing disputes between property and the user. In order to realize accurate household charging, the core of the method is to accurately predict the refrigerating capacity of each indoor unit and then calculate the consumed power corresponding to the capacity by using the capacity.
The related art discloses that the equivalent channel area of a throttling device is determined according to the type of the throttling device corresponding to each indoor unit; calculating the refrigerant mass flow and the enthalpy value of an inlet and an outlet refrigerant of each indoor unit according to the operation parameters of each indoor unit and the equivalent channel area of the throttling device, thereby calculating the refrigeration/heat of each indoor unit in the operation time period; and according to the energy type charging principle, carrying out household charging of the multi-split air conditioner.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
in the related art, the flow characteristic of the electronic expansion valve serving as a throttling device is not only related to the equivalent passage area of the electronic expansion valve, but also affected by other related parameters. Therefore, the flow calculated through the equivalent area is not accurate, and further, a large error also exists in the refrigerating capacity calculated according to the flow, so that the accuracy of household charging is low.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method, a device and a product for household charging of a multi-split air conditioner, so as to improve the accuracy of refrigerant flow calculation of each indoor unit throttling device by the multi-split air conditioner and further improve the accuracy of household charging.
In some embodiments, the method comprises: determining the mass flow of the refrigerant of each indoor unit according to the inlet pressure, the inlet supercooling degree, the pressure drop, the opening and the drift diameter of each indoor unit throttling device; calculating the distribution coefficient of each indoor unit according to the mass flow of the refrigerant of each indoor unit; and carrying out household charging according to the distribution coefficient of each indoor unit.
In some embodiments, the apparatus comprises: the processor is configured to execute the method for household charging of the multi-split air conditioner when executing the program instructions.
In some embodiments, the multi-split air conditioner includes: the device for household charging of the multi-split air conditioner is described.
The method and the device for household charging of the multi-split air conditioner and the multi-split air conditioner provided by the embodiment of the disclosure can realize the following technical effects:
the multi-split air conditioner determines the mass flow of each indoor unit refrigerant according to the inlet pressure, the inlet supercooling degree, the pressure drop, the opening and the drift diameter of each indoor unit throttling device, then calculates the distribution coefficient of each indoor unit according to the mass flow of each indoor unit refrigerant, and carries out household charging according to the distribution coefficient of each indoor unit. The mass flow of the refrigerant of each indoor unit is calculated by including the parameters related to the flow characteristics of the throttling devices, so that the calculation precision is higher, the accuracy of the refrigerant flow calculation of the throttling devices of the indoor units by the multi-split air conditioner is improved, and the accuracy of household charging is further improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic diagram of a method for charging multiple on-line air conditioners according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of another method for charging the separate users of the multi-split air conditioners according to the embodiment of the disclosure;
fig. 3 is a schematic diagram of another method for charging the separate users of the multi-split air conditioners according to the embodiment of the disclosure;
fig. 4 is a schematic diagram of another method for household charge of a multi-split air conditioner according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of another method for charging the separate users of the multi-split air conditioners according to the embodiment of the disclosure;
fig. 6 is a schematic diagram of an apparatus for household charging of a multi-split air conditioner according to an embodiment of the disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.
In the embodiment of the disclosure, the intelligent household appliance is a household appliance formed by introducing a microprocessor, a sensor technology and a network communication technology into the household appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent household appliance usually depends on the application and processing of modern technologies such as internet of things, internet and an electronic chip, for example, the intelligent household appliance can realize the remote control and management of a user on the intelligent household appliance by connecting the intelligent household appliance with the electronic device.
In the disclosed embodiment, the terminal device is an electronic device with a wireless connection function, and the terminal device can be in communication connection with the above intelligent household appliance by being connected to the internet, and can also be in communication connection with the above intelligent household appliance directly in a bluetooth mode, a wifi mode and the like. In some embodiments, the terminal device is, for example, a mobile device, a computer, or a vehicle-mounted device built in a floating car, or any combination thereof. The mobile device may include, for example, a cell phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, or the like, or any combination thereof, wherein the wearable device includes, for example: smart watches, smart bracelets, pedometers, and the like.
Referring to fig. 1, an embodiment of the present disclosure provides a method for household charging of a multi-split air conditioner, including:
and S01, determining the mass flow of the refrigerant of each indoor unit by the multi-split air conditioner according to the inlet pressure, the inlet supercooling degree, the pressure drop, the opening and the drift diameter of each indoor unit throttling device.
And S02, the multi-split air conditioner calculates the distribution coefficient of each indoor unit according to the mass flow of the refrigerant of each indoor unit.
And S03, the multi-split air conditioner performs household charging according to the distribution coefficient of each indoor unit.
Wherein, the throttling device can be an electronic expansion valve.
By adopting the method for charging the multi-split air conditioners in the individual household provided by the embodiment of the disclosure, the multi-split air conditioner determines the mass flow of each indoor unit refrigerant according to the inlet pressure, the inlet supercooling degree, the pressure drop, the opening degree and the drift diameter of each indoor unit throttling device, then calculates the distribution coefficient of each indoor unit according to the mass flow of each indoor unit refrigerant, and charges the individual household through the distribution coefficient of each indoor unit. The mass flow of the refrigerant of each indoor unit is calculated by including parameters related to the flow characteristics of the throttling devices, so that the flow calculation of the throttling devices of the indoor units has higher calculation precision, the accuracy of the multi-split air conditioner in calculating the refrigerant flow of the throttling devices of the indoor units is improved, and the accuracy of household charging is further improved. In addition, the drift diameter is adopted to replace the flow area of the electronic expansion valve in the related art, and the drift diameter is easier to obtain. The enthalpy value of an inlet of the indoor unit and the enthalpy value of an outlet refrigerant are not needed, and temperature and pressure measuring points are not needed to be additionally arranged on the indoor unit, so that the economical efficiency is better.
Referring to fig. 2, an embodiment of the present disclosure provides a method for household charging of a multi-split air conditioner, including:
and S21, respectively inputting the inlet pressure, inlet supercooling degree, pressure drop, opening degree and drift diameter of each indoor unit throttling device into a neural network by the multi-split air conditioner.
And S22, the multi-split air conditioner calculates the input parameters through a neural network to obtain the mass flow of the refrigerant of each indoor unit.
And S02, the multi-split air conditioner calculates the distribution coefficient of each indoor unit according to the mass flow of the refrigerant of each indoor unit.
And S03, the multi-split air conditioner performs household charging according to the distribution coefficient of each indoor unit.
By adopting the method for charging the multi-split air conditioner by each household provided by the embodiment of the disclosure, the multi-split air conditioner inputs the inlet pressure, the inlet supercooling degree, the pressure drop, the opening degree and the drift diameter of each indoor unit throttling device into the neural network, and calculates the input parameters through the neural network to obtain the mass flow of each indoor unit refrigerant. The refrigerant flow of each indoor unit throttling device is calculated by using an artificial neural network method, and parameters related to the flow characteristics of the throttling devices are included, so that the flow calculation of the indoor unit throttling devices has higher calculation precision, the accuracy of the multi-split air conditioner in calculating the refrigerant flow of each indoor unit throttling device is improved, and the accuracy of household charging is further improved.
Referring to fig. 3, an embodiment of the present disclosure provides a method for household charging of a multi-split air conditioner, including:
and S21, the multi-split air conditioner inputs the inlet pressure, the inlet supercooling degree, the pressure drop, the opening and the drift diameter of each indoor unit throttling device into a neural network.
And S31, the multi-split air conditioner normalizes the input parameters.
And S32, determining the value to be output by the multi-split air conditioner according to the input parameters after normalization processing.
And S33, the multi-split air conditioner performs inverse normalization processing on the value to be output to obtain the mass flow of the refrigerant of each indoor unit.
And S02, the multi-split air conditioner calculates the distribution coefficient of each indoor unit according to the mass flow of the refrigerant of each indoor unit.
And S03, the multi-split air conditioner performs household charging according to the distribution coefficient of each indoor unit.
By adopting the method for the household charging of the multi-split air conditioner, the multi-split air conditioner normalizes the input parameters, determines the value to be output according to the input parameters after normalization, and then performs inverse normalization on the value to be output, so as to obtain the mass flow of the refrigerant of each indoor unit. The refrigerant flow of each indoor unit throttling device is calculated by using an artificial neural network method, and parameters related to the flow characteristics of the throttling devices are included, so that the flow calculation of the indoor unit throttling devices has higher calculation precision, and the accuracy of the multi-split air conditioner in calculating the refrigerant flow of each indoor unit throttling device is improved.
Optionally, the normalizing the input parameters by the multi-split air conditioner includes: multi-split air conditioner calculation
Wherein Pin is the inlet pressure of the throttling device, DTsc is the inlet supercooling degree of the throttling device, DP is the pressure drop of the throttling device, Lev is the opening degree of the throttling device, d is the drift diameter of the throttling device, a1, a2, a3 and a4. a5, b1, b2, b3, b4 and b5 are fitting parameters for parameter planning of the neural network, and Pin ', DTsc ', DP ', Lev ' and Dia ' are respectively the inlet pressure, inlet supercooling degree, pressure drop, opening degree and drift diameter of the throttling device after normalization processing.
Where Pin is Pd +1, and Pd is an exhaust pressure value obtained by an exhaust pressure sensor of the multi-split air conditioner, and is generally a gauge pressure in bar. DTsc is min (1, Pdt-Tliq), and Tliq is the temperature value obtained by the liquid tube temperature sensor on the condenser. Pdt is a saturation temperature value corresponding to the exhaust pressure. The pressure difference exists between the outlet pressure of the throttling device and the actual Ps, but all the internal machines have the pressure difference, although the absolute value of the flow can be influenced by the pressure difference, the relative proportion can not be influenced, and therefore the Pd-Ps is approximately equal to the pressure drop of the throttling device. Lev is PMV1/PMVMAX, PMV1 is the actual opening of the indoor unit throttle device, and PMVMAX is 480 for a 480-step throttle device, for example. Dia is the drift diameter of the throttling device. Therefore, the inlet pressure, the inlet supercooling degree, the pressure drop, the opening degree and the drift diameter of the throttling device can be normalized through the formula.
Optionally, the determining, by the multi-split air conditioner, a value to be output according to the input parameter subjected to the normalization processing includes: multi-split air conditioner calculation
Multi-split air conditioner calculation
Multi-split air conditioner calculation
Wherein the w matrix is a weight coefficient matrix, the b matrix is an offset distance matrix, and the function f is a metafunction of the neural networkO is the value to be output, a, b, c, d, e are each o1、o2、o3、o4And o5The weight coefficient of (2). Thus, through the formula, the input parameters after normalization processing can be calculated, and the value to be output is determined.
Optionally, the performing, by the multi-split air conditioner, inverse normalization processing on the value to be output to obtain the mass flow of the refrigerant of each indoor unit includes: multi-split air conditioner calculation
Multi-split air conditioner calculation
Wherein G is the mass flow density of the indoor machine refrigerant, and m is the mass flow of the indoor machine refrigerant. Therefore, the inverse normalization processing can be carried out on the value to be output through the formula, and the mass flow of the refrigerant of each indoor unit throttling device is obtained.
Referring to fig. 4, an embodiment of the present disclosure provides a method for household charging of a multi-split air conditioner, including:
and S01, determining the mass flow of the refrigerant of each indoor unit by the multi-split air conditioner according to the inlet pressure, the inlet supercooling degree, the pressure drop, the opening and the drift diameter of each indoor unit throttling device.
And S41, the multi-split air conditioner calculates a first formula.
And S42, calculating a second formula by the multi-split air conditioner.
And S03, the multi-split air conditioner performs household charging according to the distribution coefficient of each indoor unit.
Wherein the first formula is
The second formula is
wiIs the weight coefficient of the ith indoor unit, miMass flow of refrigerant of i-th indoor unit, fiAnd distributing coefficients for the ith indoor unit.
By adopting the method for charging the multiple on-line air conditioners in the individual household, the flow of the refrigerant of the throttling device of each indoor unit is calculated by using an artificial neural network method, the weight coefficient of each indoor unit occupying the total capacity and power of the multiple on-line air conditioners is further calculated, and the capacity and the corresponding consumed power of each indoor unit are obtained by using the total capacity of the system, so that the purpose of charging in the individual household is achieved.
Referring to fig. 5, an embodiment of the present disclosure provides a method for household charging of a multi-split air conditioner, including:
and S01, determining the mass flow of the refrigerant of each indoor unit by the multi-split air conditioner according to the inlet pressure, the inlet supercooling degree, the pressure drop, the opening and the drift diameter of each indoor unit throttling device.
And S02, the multi-split air conditioner calculates the distribution coefficient of each indoor unit according to the mass flow of the refrigerant of each indoor unit.
And S51, the multi-split air conditioner calculates the product of the distribution coefficient of each indoor unit and the power consumption of the outdoor unit.
And S52, the multi-split air conditioner determines the product corresponding to each indoor unit as the power consumption of each indoor unit so as to charge each household.
By adopting the method for charging the multiple on-line air conditioners in the individual household, the multiple on-line air conditioners calculate the product of the distribution coefficient of each indoor unit and the power consumption of the outdoor unit, and determine the product corresponding to each indoor unit as the power consumption of each indoor unit so as to charge the individual household. The distribution coefficient can represent the refrigerating or heating capacity of each indoor unit, so that the power consumption of each indoor unit related to the refrigerating or heating capacity of each indoor unit can be obtained by multiplying the distribution coefficient of each indoor unit by the power consumption of the outdoor unit, and the individual household charging can be carried out according to the power consumption of each indoor unit.
As shown in fig. 6, an apparatus for charging the household of the multi-split air conditioner according to the embodiment of the present disclosure includes a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to execute the method for charging household of the multi-split air conditioner according to the above embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the method for charging the household of the multi-split air conditioner in the above embodiment.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides a multi-split air conditioner, which comprises the device for household charging of the multi-split air conditioner.
The embodiment of the disclosure provides a storage medium storing computer-executable instructions configured to perform the method for household charging of a multi-split air conditioner.
The storage medium may be a transitory storage medium or a non-transitory storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A method for individual charging of multi-split air conditioners is characterized by comprising the following steps:
determining the mass flow of the refrigerant of each indoor unit according to the inlet pressure, the inlet supercooling degree, the pressure drop, the opening and the drift diameter of each indoor unit throttling device;
calculating the distribution coefficient of each indoor unit according to the mass flow of the refrigerant of each indoor unit;
and carrying out household charging according to the distribution coefficient of each indoor unit.
2. The method of claim 1, wherein the determining the mass flow rate of the refrigerant of each indoor unit according to the inlet pressure, the inlet supercooling degree, the pressure drop, the opening degree and the drift diameter of the throttling device of each indoor unit comprises:
respectively inputting the inlet pressure, the inlet supercooling degree, the pressure drop, the opening and the drift diameter of each indoor unit throttling device into a neural network;
and calculating the input parameters through a neural network to obtain the mass flow of the refrigerant of each indoor unit.
3. The method as claimed in claim 2, wherein the calculating the input parameters through the neural network to obtain the mass flow of the refrigerant of each indoor unit comprises:
carrying out normalization processing on the input parameters;
determining a value to be output according to the input parameters after normalization processing;
and performing inverse normalization processing on the value to be output to obtain the mass flow of the refrigerant of each indoor unit.
4. The method of claim 3, wherein the normalizing the input parameters comprises:
computing
The method comprises the steps of obtaining a pressure value of a throttling device, obtaining a fitting parameter of a neural network, and obtaining the pressure value of the throttling device, wherein Pin is the inlet pressure of the throttling device, DTsc is the inlet supercooling degree of the throttling device, DP is the pressure drop of the throttling device, Lev is the opening degree of the throttling device, d is the drift diameter of the throttling device, a1, a2, a3, a4, a5, b1, b2, b3, b4 and b5 are fitting parameters for parameter programming of the neural network, and Pin ', DTsc ', DP ', Lev ' and Dia ' are respectively the inlet pressure, the inlet supercooling degree, the pressure drop, the opening degree and the drift diameter of the throttling device after normalization processing.
5. The method according to claim 4, wherein the determining a value to be output according to the input parameter after the normalization process comprises:
computing
Computing
Computing
Wherein the w matrix is a weight coefficient matrix, the b matrix is an offset distance matrix, the function f is a metafunction of the neural network, o is the value to be output, and a, b, c, d and e are respectively o1、o2、o3、o4And o5The weight coefficient of (2).
6. The method as claimed in claim 5, wherein the performing the inverse normalization processing on the value to be output to obtain the mass flow of the refrigerant of each indoor unit comprises:
computing
Computing
Wherein G is the mass flow density of the indoor unit refrigerant, and m is the mass flow of the indoor unit refrigerant.
7. The method according to any one of claims 1 to 6, wherein the calculating the distribution coefficient of each indoor unit according to the mass flow rate of the refrigerant of each indoor unit comprises:
computing
Computing
Wherein, wiIs the weight coefficient of the ith indoor unit, miMass flow of refrigerant of i-th indoor unit, fiAnd distributing coefficients for the ith indoor unit.
8. The method according to any one of claims 1 to 6, wherein the charging for each household according to the distribution coefficient of each indoor unit comprises:
calculating the product of the distribution coefficient of each indoor unit and the power consumption of the outdoor unit;
and determining the product corresponding to each indoor unit as the power consumption of each indoor unit so as to charge each household.
9. An apparatus for split charging of a multi-split air conditioner, comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for split charging of a multi-split air conditioner according to any one of claims 1 to 8 when executing the program instructions.
10. A multi-split air conditioner comprising the apparatus for billing individual household of the multi-split air conditioner as claimed in claim 9.
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