Electric quantity dividing method, electric quantity dividing device and multi-split air conditioning system

Abstract

The invention provides an electric quantity dividing method and device and a multi-split air conditioning system. The electric quantity dividing method comprises the steps that operation data of the multi-split air conditioning system are periodically collected to obtain multiple sets of operation data, and each set of operation data comprises first operation data of an indoor unit, second operation data of an outdoor unit and recorded electric quantity of a metering device; judging a power consumption type of the recorded electric quantity according to the first operation data and the second operation data, wherein the power consumption type comprises one of operation electric quantity, standby electric quantity or offline electric quantity; according to the power consumption type, the first operation data and preset distribution parameters, the recorded electric quantity is divided to indoor units; calculating the power consumption of each power consumption type in each indoor unit within the preset duration to obtain the power consumption within the preset duration; and the electricity consumption of the public sharing indoor units in the preset duration is divided to the target indoor units according to the public sharing division algorithm, so that the total electricity consumption of the target indoor units is obtained, and the indoor units comprise the public sharing indoor units and the target indoor units. Therefore, reasonable division of the electric quantity is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an electricity division method, an electricity division device and a multi-split air conditioning system. Background Art

[0002] Multi-split air conditioning systems are widely used in commercial and residential areas due to their advantages such as flexible control and great energy-saving potential. However, the issue of electricity allocation has long been controversial. Currently, mainstream methods on the market mainly include allocation by area, allocation by operating time, and allocation by energy flow (cooling / heating). However, these methods generally ignore differences in user behavior and energy flow calculations that are divorced from actual operating conditions. This can easily lead to large deviations between the allocation results and the actual operating data of the equipment, making it easy for users to question the rationality of electricity charges and cause disputes. Therefore, how to reasonably divide electricity has become an urgent problem that needs to be solved. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide an electricity division method, an electricity division device, and a multi-split air conditioning system.

[0004] An electricity division method provided in an embodiment of the present invention is used in a multi-split air conditioning system, wherein the multi-split air conditioning system includes at least one outdoor unit, multiple indoor units, and a metering device, wherein the metering device is used to record the electricity consumption of the outdoor unit. The electricity division method includes:

[0005] Periodically collecting operating data of the multi-split air conditioning system to obtain multiple sets of operating data, each set of operating data including first operating data of the indoor unit, second operating data of the outdoor unit, and power recorded by the metering device;

[0006] Determining a power consumption type of the recorded power according to the first operating data and the second operating data, the power consumption type including one of operating power, standby power, or offline power;

[0007] dividing the recorded power to the indoor units according to the power consumption type, the first operating data and a preset allocation parameter;

[0008] Calculating the power consumption of each power consumption type in each of the indoor units within a preset time period to obtain the power consumption of each of the indoor units during the preset time period; and

[0009] According to the shared partitioning algorithm, the power consumption of the shared indoor unit during the preset time period is divided into the target indoor unit to obtain the total power consumption of the target indoor unit. The indoor unit includes the shared indoor unit and the target indoor unit. The shared partitioning algorithm includes one of average partitioning of indoor units, average partitioning of indoor unit groups, partitioning of indoor unit groups by area size, partitioning of the number of devices within the indoor unit group, or partitioning of the power consumption ratio within the indoor unit group.

[0010] In some embodiments, the preset allocation parameter includes a first allocation parameter, and allocating the recorded power to the indoor unit according to the power consumption type, the first operating data, and the preset allocation parameter includes:

[0011] When the power consumption type is operating power, generating a refrigerant coefficient, a demand coefficient, and a time coefficient of the outdoor unit according to the first allocation parameter;

[0012] calculating an energy consumption coefficient and an energy flow coefficient of the indoor unit according to the first operating data;

[0013] The distributed power of each indoor unit is calculated according to the refrigerant coefficient, the demand coefficient, the time coefficient, the energy consumption coefficient and the energy flow coefficient.

[0014] In some embodiments, generating the refrigerant coefficient, demand coefficient, and time coefficient of the outdoor unit according to the first allocation parameter includes:

[0015] Generate a refrigerant coefficient, a demand coefficient, and a time coefficient of the outdoor unit based on user preference settings; or

[0016] Generate a refrigerant coefficient, a demand coefficient, and a time coefficient of the outdoor unit based on user definition; or

[0017] Obtain historical operation data;

[0018] The refrigerant coefficient, demand coefficient and time coefficient of the outdoor unit are calculated according to the historical operation data.

[0019] In some embodiments, the first operating data includes a set temperature, an ambient temperature, an operating mode, an electronic expansion valve opening, an electronic expansion valve diameter, and an air outlet temperature. Calculating the energy consumption coefficient and the energy flow coefficient of the indoor unit based on the first operating data includes:

[0020] Calculating a capacity requirement coefficient of the indoor unit according to a set temperature of the indoor unit, an ambient temperature, an operation mode, and an opening of an electronic expansion valve;

[0021] Calculating the energy consumption coefficient according to the number of the indoor units and the capacity requirement coefficient;

[0022] The energy flow coefficient is calculated according to the opening degree of the electronic expansion valve, the diameter of the electronic expansion valve and the air outlet temperature.

[0023] In some embodiments, the calculation expression for the distributed power of the indoor unit includes:

[0024] X1=P1*E*[Hn / (H1+H2+....+Hm)|Vn / (V1+V2+....+Vm)]+(P1*R) / m1+(P1*T*) / m2

[0025] X1 is the distributed power of the indoor unit when the recorded power is the operating power, P1 is the operating power of the outdoor unit, E is the refrigerant coefficient, R is the demand coefficient, T is the time coefficient, m is the number of indoor units in the same refrigerant system, m1 is the number of indoor units in the refrigerant system with H>0 or V>0, m2 is the number of indoor units in the refrigerant system with the current indoor unit mode not set to shutdown, H1, H2, ...., Hm are the energy consumption coefficients of each indoor unit in the same refrigerant system, Hn is the refrigerant energy coefficient of the current indoor unit, n is greater than 0 and less than m, V1, V2, ...., Vm are the energy flow coefficients of the indoor units in the same refrigerant system, Vn is the energy flow coefficient of the current indoor unit, and n is greater than 0 and less than m.

[0026] In some embodiments, the preset allocation parameter includes a second allocation parameter, and allocating the recorded power to the indoor unit according to the power consumption type, the first operating data, and the preset allocation parameter includes:

[0027] When the power consumption type is standby power, the recorded power is allocated to the indoor unit according to the second allocation parameter.

[0028] In some embodiments, the preset allocation parameter includes a third allocation parameter, and allocating the power to each indoor unit according to the power consumption type and the preset allocation parameter includes:

[0029] In a case where the power consumption type of the recorded power is offline power, determining an offline division factor according to the third allocation parameter;

[0030] The recorded power is distributed to the indoor units according to the offline division factor.

[0031] In some embodiments, the third allocation parameter includes one of an average division of the refrigerant system, an average division of the indoor units, and a ratio division of historical operation data.

[0032] In some embodiments, calculating the power consumption of each power consumption type in each indoor unit within a preset time period to obtain the power consumption of each indoor unit during the preset time period includes:

[0033] Accumulate the running power of each cycle within the preset time and accumulate the offline power of each cycle within the preset time to obtain the running power consumption and the offline power consumption;

[0034] Calculating the standby power consumption of each cycle within a preset time period according to the standby division algorithm and the standby power consumption is obtained;

[0035] The power consumption of the operating power, the power consumption of the standby power and the power consumption of the offline power are added together to obtain the power consumption of the indoor unit during the preset time.

[0036] In some embodiments, the standby division algorithm includes one of system average division, system power-on division, indoor unit average division, and power consumption ratio division.

[0037] In some embodiments, the shared area division algorithm includes one of equal division among indoor units, equal division among indoor unit groups, division among indoor unit groups by area size, division among number of devices within indoor unit groups, or division among power consumption ratios within indoor unit groups.

[0038] In some embodiments, the power division method further includes:

[0039] Determining a set rate for the target indoor unit within the preset time period;

[0040] The electricity cost of the target indoor unit is calculated according to the set rate and the power consumption.

[0041] The power division device of this embodiment is used in a multi-split air conditioning system, which includes at least one outdoor unit, multiple indoor units, and a metering device. The metering device is used to record the power consumption of the outdoor unit. The power division device includes:

[0042] a collection module, configured to periodically collect operating data of the multi-split air conditioning system to obtain multiple sets of operating data, each set of operating data including first operating data of the indoor unit, second operating data of the outdoor unit, and recorded power of the metering device;

[0043] a determination module, configured to determine a power consumption type of the recorded power according to the first operation data and the second operation data, the power consumption type comprising at least one of operating power, standby power, or offline power;

[0044] a first dividing module, configured to divide the recorded power to the indoor units according to the power consumption type, the first operating data, and a preset distribution parameter;

[0045] a calculation module, configured to calculate the power consumption of each power consumption type in each of the indoor units within a preset time period, to obtain the power consumption of each of the indoor units within the preset time period; and

[0046] The second division module is used to divide the power consumption of the shared indoor unit during the preset time period into the target indoor unit according to the shared division algorithm to obtain the total power consumption of the target indoor unit, and the indoor unit includes the shared indoor unit and the target indoor unit.

[0047] The multi-split air conditioning system according to the embodiment of the present application includes a processor and a memory, wherein the memory stores a computer program. When the computer program is executed by the processor, the processor implements the power division method.

[0048] In the power division method, power division device and multi-split air-conditioning system of the embodiment of the present application, multiple groups of operating data are obtained by periodically collecting operating data, and the power consumption type of the power generated by the outdoor unit in each group of operating data is determined (operating power / standby power / offline power), which can avoid errors caused by confusing operating states, and then allocate each power consumption type through dynamic allocation parameters, as well as secondary allocation of shared energy consumption, and refine the power division logic layer by layer to achieve accurate tracing and reasonable allocation of energy consumption in the multi-split air-conditioning system, avoid the problem of large energy consumption differences under the same operating conditions, and ensure that power can be reasonably divided to each indoor unit (that is, the operating power, standby power, off-line power and shared power are reasonably allocated to the indoor unit), with high flexibility, thereby improving user experience.

[0049] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0051] Figure 1 is a flow chart of a method for dividing power in certain embodiments of the present invention;

[0052] Figure 2 is a schematic diagram of a module of an electric power dividing device according to certain embodiments of the present invention;

[0053] Figure 3 This is a schematic diagram of a scenario of a multi-split air conditioning system according to certain embodiments of the present invention;

[0054] Figure 4-9 is a flow chart of a method for dividing power in certain embodiments of the present invention;

[0055] Figure 10 This is another module schematic diagram of the power division device in certain embodiments of the present invention. DETAILED DESCRIPTION

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example" or "some examples" is intended to mean that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are mutually contradictory. At the same time, the description with reference to the terms "first", "second" and the like is intended to distinguish between similar or similar operations. In some embodiments, there is a logical relationship between "first" and "second", but in some embodiments, there is not necessarily a logical or front-to-back relationship. It needs to be determined based on the actual embodiment and should not be determined only by the literal meaning.

[0057] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0058] See also Figure 1 The present application provides an electricity division method for a multi-split air conditioning system. The multi-split air conditioning system includes at least one outdoor unit, multiple indoor units, and a metering device. The metering device is used to record the electricity consumption of the outdoor unit. The electricity division method includes:

[0059] 01. Periodically collect operating data of the multi-split air conditioning system to obtain multiple sets of operating data, each set of operating data including first operating data of the indoor unit, second operating data of the outdoor unit, and power recorded by the metering device;

[0060] 02. Determine the power consumption type of the recorded power according to the first operating data and the second operating data, where the power consumption type includes one of operating power, standby power, or offline power;

[0061] 03. Allocate the recorded power to the indoor units according to the power consumption type, the first operating data and the preset allocation parameters;

[0062] 04. Calculate the power consumption of each power consumption type in each indoor unit within the preset time period to obtain the power consumption of each indoor unit within the preset time period; and

[0063] 05. According to the shared-use division algorithm, the power consumption of the shared-use indoor units in the preset time period is divided into the target indoor units to obtain the total power consumption of the target indoor units, which include the shared-use indoor units and the target indoor units.

[0064] See also Figure 2 The present application provides an electric power division device 10. The electric power division device 10 is used in a multi-split system and includes a collection module 11, a judgment module 12, a first division module 13, a calculation module 14, and a second division module 15. Step 01 can be implemented by the collection module 11, step 02 by the judgment module 12, step 03 by the first division module 13, step 04 by the calculation module 14, and step 03 by the second division module 15.

[0065] In other words, the acquisition module 11 can be used to periodically collect operating data of the multi-split air-conditioning system to obtain multiple groups of operating data, each group of operating data including first operating data of the indoor unit, second operating data of the outdoor unit and recorded power of the metering device; the judgment module 12 is used to judge the power consumption type of the recorded power based on the first operating data and the second operating data, and the power consumption type includes at least one of operating power, standby power or offline power; the first division module 13 is used to divide the recorded power to the indoor unit according to the power consumption type, the first operating data and the preset allocation parameters; the calculation module 14 is used to calculate the power consumption of each power consumption type in each indoor unit within a preset time length, and obtain the power consumption of each indoor unit in the preset time length; and the second division module 15 is used to divide the power consumption of the shared indoor unit in the preset time length to the target indoor unit according to the shared indoor unit partitioning algorithm, to obtain the total power consumption of the target indoor unit, and the indoor unit includes the shared indoor unit and the target indoor unit.

[0066] The embodiment of the present application further provides a multi-split air conditioning system, which further includes a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor implements the above-mentioned power allocation method. That is, the processor can be used to periodically collect operating data of the multi-split air conditioning system to obtain multiple sets of operating data, each set of operating data including first operating data of an indoor unit, second operating data of an outdoor unit, and recorded power of a metering device; determine the power consumption type of the recorded power based on the first operating data and the second operating data, the power consumption type including one of operating power, standby power, or offline power; allocate the recorded power to the indoor units based on the power consumption type, the first operating data, and a preset allocation parameter; calculate the power consumption of each power consumption type in each indoor unit within a preset time period to obtain the power consumption of each indoor unit during the preset time period; and allocate the power consumption of the shared indoor units during the preset time period to the target indoor units based on a shared allocation algorithm to obtain the total power consumption of the target indoor units, wherein the indoor units include the shared indoor units and the target indoor units.

[0067] In the power division method, power division device 10 and multi-split air-conditioning system of the embodiment of the present application, multiple groups of operating data are obtained by periodically collecting operating data, and the power consumption type of the power generated by the outdoor unit in each group of operating data is determined (operating power / standby power / offline power), which can avoid errors caused by confusing operating states, and then initially allocate each power consumption type through dynamic allocation parameters and first operating data. Since the actual operating conditions of the indoor units are considered during the allocation process, it can ensure that the power distribution is more reasonable, and then for the secondary distribution of shared energy consumption, the power division logic is refined layer by layer, which realizes the accurate tracing and reasonable allocation of energy consumption in the multi-split air-conditioning system, avoids the problem of large energy consumption differences under the same operating conditions, and ensures that the power can be reasonably divided to each indoor unit (that is, the operating power, standby power, off-line power and shared power are reasonably allocated to the indoor units), with high flexibility, which improves the user experience.

[0068] See also Figure 3Specifically, the multi-split air-conditioning system may include a refrigerant system, a gateway, and a client, etc. The refrigerant system can communicate with the client through the gateway, thereby realizing data transmission. The number of refrigerant systems and the number of gateways can be one or more, and each gateway can be connected to one or more refrigerant systems through the RS485 protocol to communicate with the refrigerant system, thereby realizing data collection of the refrigerant system. For example, in some examples, each gateway may include four ports, and each gateway can be connected to up to 32 refrigerant systems. The client can be a mobile terminal (such as a mobile phone, tablet computer, wearable device, etc.) or a fixed terminal (personal computer). Each gateway can be connected to a router via a network cable, and then the router communicates with the client through a network cable, WIFI or mobile communication.

[0069] Each refrigerant system includes an outdoor unit, a metering device, and an indoor unit. The outdoor unit is connected to the metering device and the indoor unit, respectively. The metering device can be an electric meter that records the amount of electricity consumed by the outdoor unit during operation. The metering device can support the transmission of recorded electricity to the cloud via MQTT and can also open the recorded electricity to third-party BMS integration via Modbus TCP and HTTP protocols.

[0070] The number of indoor units may be one or more, for example, 1, 2, 3, 5, 7, 12, 64, etc. The types of indoor units may include, but are not limited to, ceiling-type indoor units, duct-type indoor units, and wall-mounted units. The indoor units are used to achieve indoor temperature regulation by exchanging heat through an evaporator, promoting air circulation using a fan, and adjusting humidity when necessary.

[0071] In some implementations, the processor and memory may be integrated into the client, or in other words, the client may include both the processor and the memory. For example, in some examples, when the client is a personal computer, the processor may be the CPU of the personal computer, and the memory may be the hard drive of the personal computer. This allows the client to implement the aforementioned power partitioning method.

[0072] In some embodiments, the power division device may be part of a multi-split air conditioning system. Alternatively, the multi-split air conditioning system includes the power division device. When the power division device is part of the multi-split air conditioning system, the power division device may be discrete components assembled in a manner to perform the aforementioned functions, a chip in the form of an integrated circuit that performs the aforementioned functions, or a computer software code segment that, when executed on a client, enables the client to perform the aforementioned functions.

[0073] In some embodiments, the power splitting device can be a standalone hardware component or an additional peripheral component added to the multi-split air conditioning system. The power splitting device can also be integrated into the multi-split air conditioning system. For example, when the power splitting device is part of the multi-split air conditioning system, the power splitting device can be integrated into the client's processor.

[0074] The power allocation device or processor can be based on a distributed cluster. Each node in the cluster is aware of the existence of all other nodes and is capable of independently processing power allocation and reporting for the connected outdoor and indoor units. The power allocation device can independently and completely execute billing logic processing, data storage, and query, independent of any host computer. The billing device's report output supports multi-client presentation, making operation convenient and efficient, without requiring any special hardware or software for terminal devices running a client or using a browser.

[0075] In step 01, the first operating data may include but is not limited to the operating mode of the indoor unit (such as cooling, heating, air outlet, standby), set temperature, ambient temperature, air outlet temperature, power matching, electronic expansion valve opening, electronic expansion valve diameter and wind speed, etc. The second operating data may include but is not limited to the operating mode of the outdoor unit, outdoor ambient temperature, pipe pressure, compressor operating status, etc.

[0076] The processor may collect operating data using a fixed polling cycle and store each set of operating data in a memory. The power consumption may then be divided according to a predetermined division algorithm. The collection cycle may be 20-180 seconds. For example, the collection cycle may be 20 seconds, 25 seconds, 30 seconds, 35 seconds, 40 seconds, 50 seconds, 60 seconds, 120 seconds, or 180 seconds. In this embodiment, the collection cycle is 30 seconds for illustration purposes only. That is, in step 01, a set of operating data for the multi-split air conditioning system is collected every 30 seconds, thereby obtaining multiple sets of operating data within the preset time period.

[0077] In step 02, the power consumption value of the current group can be obtained according to the difference in the recorded power of adjacent groups. For example, the recorded power of the previous group is 826 degrees, and the recorded power of the current group is 830 degrees, then the power consumption value of the current group is 4 degrees; then, according to the first operation data and the second operation data, it is first determined whether the outdoor unit is in the operating state. When the outdoor unit of the current group is in the operating state, it is determined that the recorded power of the current group is the operating power, and the recorded power of the current group is classified as the operating power, that is, the power consumption type of the power recorded by the current group is the operating power; when it is determined that the outdoor unit is not in the operating state, it is then determined whether the outdoor unit is in the standby state. When the outdoor unit is in the standby state, it is determined that the recorded power of the current group is the standby power, and the recorded power of the current group is classified as the standby power. If the outdoor unit is not in the standby state, it is determined that the recorded power of the current group is the offline power, and the recorded power of the current group is classified as the offline power, and the offline is marked, and the last valid reading is saved.

[0078] Preset allocation parameters are pre-stored parameters used to divide energy consumption within a multi-split air conditioning system. These parameters define the division factors for recorded energy consumption and are used to allocate recorded energy to indoor units. These parameters include a first allocation parameter, a second allocation parameter, and a third allocation parameter. The first allocation parameter is used to allocate operating energy, the second allocation parameter is used to allocate standby energy, and the third allocation parameter is used to allocate offline energy. Each of these parameters can be set using a manual, preference, or intelligent allocation algorithm. A manual, preference, or intelligent allocation algorithm allows users to manually adjust the weights and parameter priorities of the allocation dimensions through an interactive interface. A preference, or intelligent allocation algorithm, allows users to automatically set the weights and parameter priorities based on pre-defined scenarios. An intelligent allocation algorithm automatically matches historical device operating data with multiple built-in preference algorithms. The intelligent allocation algorithm is data-driven, with different historical operating data influencing the allocation algorithm logic. These three allocation methods offer different options to meet diverse user needs and scenarios, enhancing the flexibility and intelligence of the energy allocation system.

[0079] It should be noted that the process of the intelligent partitioning algorithm can be as follows: determine whether there is one month of historical data. If there is one month of historical data, load the preset preference algorithm, convert the preference parameters into allocation coefficients and perform the partitioning calculation, then save the partitioning results, and then calculate the indicator scores. It is determined whether there are any failed items for each indicator. If there are failed items, record them in the candidate preference algorithm. Then, determine whether the candidate preference algorithm is empty. If so, execute the default partitioning algorithm; if not, compare the candidate algorithms based on the scores of each item, and finally select the item with the highest score and set it as the partitioning allocation parameter. If it is determined that there are no failed items, reload the preset preference algorithm; if there is no one month of historical data, execute the default partitioning algorithm.

[0080] The preset time period may include multiple collection cycles, and the preset time period may be 0.5 hours, 1 hour, 1.5 hours, 2 hours, 2.5 hours, 3 hours, 4 hours, or even 24 hours. In this embodiment, the preset time period may be 1 hour for illustration, that is, all the running power, standby power, and offline power of the current indoor unit within one hour are accumulated, and then the accumulated running power, standby power, and offline power are accumulated to obtain the power consumption of the current indoor unit within one hour.

[0081] For example, if the cumulative running power within the preset time is X, the cumulative standby power is Y, and the cumulative offline power is Z, then the power consumption of the indoor unit within the preset time is W=X+Y+Z.

[0082] In step 05, all indoor units can be classified according to usage into shared indoor units and target indoor units. Shared indoor units do not participate in the final power allocation. That is, all power consumption of shared indoor units is allocated to target indoor units. Target indoor units are indoor units that participate in power allocation and are subsequently used for billing. Target indoor units can include only operating indoor units or both operating and idle indoor units. The processor uses the power consumption of the shared indoor units within a preset time period as the shared power consumption of the target indoor units based on a shared allocation algorithm. The processor then allocates the shared power consumption to the target indoor units, such that the power consumption types of the target indoor units include operating power consumption, standby power consumption, disconnected power consumption, and shared power consumption.

[0083] For example, in some examples, all indoor units may include indoor unit 1, indoor unit 2, indoor unit 3, and indoor unit 4. Indoor unit 1, indoor unit 2, and indoor unit 3 are target indoor units, and indoor unit 4 is a shared indoor unit. After the recorded power consumption is divided among the four outdoor units, the power consumption allocated to indoor unit 4 can be used as the shared power consumption for indoor unit 1, indoor unit 2, and indoor unit 3. The shared power consumption can then be divided among the shared power consumption for indoor units 1, indoor unit 2, and indoor unit 3. This facilitates subsequent billing for indoor units 1, indoor unit 2, and indoor unit 3.

[0084] The calculation expression for the total power consumption of the target indoor unit within the preset time is:

[0085] W=X+Y+Z+K

[0086] Among them, W is the total power consumption of the target indoor unit within the preset time, X is the operating power consumption of the target indoor unit within the preset time, Y is the standby power consumption of the target indoor unit within the preset time, Z is the offline power consumption of the target indoor unit within the preset time, and K is the shared power consumption of the target indoor unit within the preset time.

[0087] Furthermore, the shared area division algorithm can be one of: average division among indoor units, average division among indoor unit groups, division among indoor unit groups by area size, division among number of devices within indoor unit groups, or division among power consumption ratios within indoor unit groups. The shared area division algorithm can be selected and determined by the user.

[0088] When the shared power allocation algorithm is equal allocation for indoor units and the number of enabled indoor units is greater than 0, the shared power of the target indoor unit = the total power of all shared indoor units / (all indoor units - idle indoor units - shared indoor units). When the number of enabled indoor units is equal to 0, the total power of all shared indoor units will be included in the operation and management power.

[0089] When the shared power allocation algorithm is equal division among indoor unit groups and the number of associated indoor unit groups is greater than 0, the shared power of the target indoor unit = the total power of all shared indoor units / the number of indoor unit groups associated with the public group. When the number of associated indoor unit groups is equal to 0, the total power of all shared indoor units will be included in the operation management power.

[0090] When the shared power allocation algorithm is based on the size of the indoor unit groups and the number of associated indoor unit groups is greater than 0, the shared power consumption of the target indoor unit = the total power consumption of all shared indoor units * the area of the indoor unit group / the total area of the indoor unit groups associated with the public group; when the number of associated indoor unit groups is equal to 0, the total power consumption of all shared indoor units will be included in the operation management power consumption.

[0091] When the shared power allocation algorithm is based on the number of devices in the indoor unit group and the number of associated indoor unit groups is greater than 0, the shared power of the target indoor unit = the total power of all shared indoor units * the number of indoor units in the indoor unit group / the total number of indoor units in the indoor unit group associated with the shared group; when the number of associated indoor unit groups is equal to 0, the total power of all shared indoor units will be included in the operation management power.

[0092] When the shared electricity consumption allocation algorithm is based on the proportion of electricity consumption within the indoor unit group, and the number of associated indoor unit groups is greater than 0, the shared electricity consumption of the target indoor unit = the total electricity consumption of all shared indoor units * the operating electricity consumption of the indoor unit group / the total operating electricity consumption of the indoor unit groups associated with the shared group; when the number of associated indoor unit groups is equal to 0, the total electricity consumption of all shared indoor units will be included in the operation and management electricity consumption.

[0093] In addition, it should be noted that the electricity division method of the above-mentioned embodiment divides the electricity recorded by the metering device according to the first operating data of the indoor unit and the second operating data of the outdoor unit. If the first operating data of the indoor unit and the second operating data of the outdoor unit cannot be obtained, for example, if a disconnection event occurs and the indoor and outdoor units of the multi-split air-conditioning system are in a disconnected state, the above-mentioned electricity division method cannot divide the electricity recorded by the metering device.

[0094] Therefore, this embodiment also provides a method for dividing the recorded power of the metering device in the offline state. Specifically, the offline power record can be inserted. When the abnormal duration is less than 720 hours and greater than 1 hour and the recorded power is greater than 0, an offline power distribution instance can be created, which can be distributed according to the average of the indoor units, according to historical operation data, or distributed according to the system average. Among them, the average distribution scheme for indoor units is: obtain all gateway devices to perform an average calculation for all indoor units in the cluster, and then distribute them evenly across gateways based on the calculation results. The distribution scheme based on historical operation data is: obtain historical data for the same period, and if there is valid data, distribute it according to the historical demand ratio, otherwise use the system average distribution scheme. The system average distribution scheme is: obtain all indoor units in the system, and then evenly distribute the power to each indoor unit. In this way, it is guaranteed that power can be divided even in the offline state.

[0095] See also Figure 4 In some embodiments, the preset allocation parameter includes a first allocation parameter, and step 03 includes:

[0096] 031, when the power consumption type is operating power, generating a refrigerant coefficient, a demand coefficient, and a time coefficient of the outdoor unit according to the first allocation parameter;

[0097] 032. Calculate the energy consumption coefficient and energy flow coefficient of the indoor unit according to the first operating data;

[0098] 033. Calculate the allocated power of each indoor unit based on the refrigerant coefficient, demand coefficient, time coefficient, energy consumption coefficient and energy flow coefficient.

[0099] Please further combine Figure 2 In some embodiments, sub-steps 031-033 may be implemented by the first division module 13. That is, the first division module 13 may be configured to, when the power consumption type is operating power, generate the refrigerant coefficient, demand coefficient, and time coefficient of the outdoor unit according to the first allocation parameter, calculate the energy consumption coefficient and energy flow coefficient of the indoor unit according to the first operating data, and calculate the allocated power of each indoor unit according to the refrigerant coefficient, demand coefficient, time coefficient, energy consumption coefficient, and energy flow coefficient.

[0100] In some embodiments, the processor can be used to generate the refrigerant coefficient, demand coefficient and time coefficient of the outdoor unit based on the first allocation parameter when the power consumption type is operating power, and calculate the energy consumption coefficient and energy flow coefficient of the indoor unit based on the first operating data, and calculate the allocated power of each indoor unit based on the refrigerant coefficient, demand coefficient, time coefficient, energy consumption coefficient and energy flow coefficient.

[0101] It should be noted that in sub-step 031, the refrigerant coefficient represents the outdoor unit's cooling / heating energy flow allocation ratio, the demand coefficient represents the indoor unit's energy consumption allocation ratio based on the set temperature and ambient temperature, and the time coefficient represents the outdoor unit's minimum loss allocation ratio. The outdoor unit's current operating power is determined by the refrigerant coefficient, demand coefficient, and time coefficient. The operating power calculation expression can be:

[0102] P=E+R+T, where E+R+T=100%

[0103] Among them, E is the refrigerant coefficient, R is the demand coefficient, and T is the time coefficient.

[0104] The first allocation parameter may include, but is not limited to, allocation based on user preferences, allocation based on user definitions, and allocation based on historical operating data. Specifically, the refrigerant coefficient, demand coefficient, and time coefficient of the outdoor unit may be generated based on user preferences; based on user definitions; or by obtaining historical operating data and calculating the refrigerant coefficient, demand coefficient, and time coefficient of the outdoor unit based on the historical operating data.

[0105] In sub-step 032, the indoor unit's energy consumption coefficient refers to an indicator of the indoor unit's energy consumption efficiency during operation, and the energy flow coefficient refers to a coefficient related to the efficiency of the refrigerant transferring energy in the cooling or heating cycle. It is understandable that the indoor unit's power consumption is correlated with the energy consumption coefficient and the energy flow coefficient. A higher energy consumption coefficient indicates that the indoor unit consumes more power under the same conditions, and therefore more power needs to be allocated. The first operating data may include the indoor unit's set temperature, ambient temperature, operating mode, electronic expansion valve opening, electronic expansion valve diameter, and air outlet temperature. Thus, by calculating the indoor unit's energy consumption coefficient and energy flow coefficient based on the first operating data, the accuracy of the energy consumption coefficient and energy flow coefficient can be ensured.

[0106] In sub-step 033, the calculation expression of the distributed power of the indoor unit includes:

[0107] X1=P1*E*[Hn / (H1+H2+....+Hm)|Vn / (V1+V2+....+Vm)]+(P1*R) / m1+(P1*T*) / m2

[0108] X1 is the distributed power of the indoor unit when the recorded power is the operating power, P1 is the operating power of the outdoor unit, E is the refrigerant coefficient, R is the demand coefficient, T is the time coefficient, m is the number of indoor units in the same refrigerant system, m1 is the number of indoor units in the refrigerant system with H>0 or V>0, m2 is the number of indoor units in the refrigerant system with the current indoor unit mode not set to shutdown, H1, H2, ..., Hm are the energy consumption coefficients of each indoor unit in the same refrigerant system, Hn is the energy consumption coefficient of the current indoor unit, n is greater than 0 and less than m, V1, V2, ..., Vm are the energy flow coefficients of the indoor units in the same refrigerant system, Vn is the energy flow coefficient of the current indoor unit, n is greater than 0 and less than m.

[0109] See also Figure 5 In some embodiments, step 03 includes:

[0110] 0321, calculate the capacity requirement coefficient of the indoor unit based on the set temperature of the indoor unit, ambient temperature, operation mode, and opening of the electronic expansion valve;

[0111] 0322, calculate the energy consumption coefficient based on the number of indoor units and the capacity demand coefficient;

[0112] 0323, calculate the energy flow coefficient based on the electronic expansion valve opening, electronic expansion valve diameter and air outlet temperature.

[0113] Please further combine Figure 2In some embodiments, sub-steps 0321-0323 may be implemented by the first classification module 13. That is, the first classification module 13 may be configured to calculate the capacity requirement coefficient of the indoor unit based on the set temperature of the indoor unit, the ambient temperature, the operation mode, and the opening of the electronic expansion valve; calculate the energy consumption coefficient based on the number of the indoor unit and the capacity requirement coefficient; and calculate the energy flow coefficient based on the opening of the electronic expansion valve, the diameter of the electronic expansion valve, and the outlet air temperature.

[0114] In some embodiments, the processor can be used to calculate the capacity demand coefficient of the indoor unit based on the set temperature, ambient temperature, operating mode, and opening of the electronic expansion valve of the indoor unit, and calculate the energy consumption coefficient based on the matching number and capacity demand coefficient of the indoor unit; and calculate the energy flow coefficient based on the opening of the electronic expansion valve, the caliber of the electronic expansion valve, and the outlet air temperature.

[0115] The calculation expression of energy consumption coefficient can include:

[0116] H=Hp*C

[0117] Among them, Hp is the indoor unit's horsepower, and C is the indoor unit's capacity requirement coefficient. C can be calculated comprehensively based on the indoor unit's set temperature, ambient temperature, operating mode, and electronic expansion valve opening.

[0118] See also Figure 6 In some embodiments, the preset allocation parameter includes a second allocation parameter, and step 03 includes:

[0119] 034. When the power consumption type is standby power, the recorded power is allocated to the indoor unit according to the second allocation parameter.

[0120] Please further combine Figure 2 In some embodiments, sub-step 034 can be implemented by the first division module 13. That is, the first division module 13 can be used to distribute the recorded power to the indoor units according to the second distribution parameter when the power consumption type is standby power.

[0121] In some embodiments, the processor may be configured to allocate the recorded power to the indoor unit according to the second allocation parameter when the power consumption type is standby power.

[0122] Specifically, the second allocation parameter includes one of an average division by the refrigerant system, an average division by active devices within the refrigerant system, an average division by indoor units, and a division based on historical power usage ratio. In other words, if the recorded power consumption type is standby power, the offline allocation factor can be determined based on the average division by the refrigerant system, the average division by indoor units, or the historical operating data ratio.

[0123] See also Figure 7 In some embodiments, the preset allocation parameter includes a third allocation parameter, and step 03 includes:

[0124] 035, when the power consumption type of the recorded power is offline power, determining an offline division factor according to the third allocation parameter;

[0125] 036, distribute the recorded power to the indoor units according to the offline division factor.

[0126] Please further combine Figure 2 In some embodiments, sub-steps 035-036 may be implemented by the first division module 13. That is, the first division module 13 may be configured to, when the power consumption type of the recorded power is offline power, determine an offline division factor according to the third allocation parameter, and distribute the recorded power to the indoor units according to the offline division factor.

[0127] In some embodiments, the processor may be configured to determine an offline partitioning factor according to a third allocation parameter when the power consumption type of the recorded power is offline power, and allocate the recorded power to the indoor unit according to the offline partitioning factor.

[0128] The third allocation parameter includes one of an average division by the refrigerant system, an average division by the indoor units, or a division based on a percentage of historical operating data. Specifically, if the recorded power consumption type is offline power, the offline division factor can be determined based on the average division by the refrigerant system, the average division by the indoor units, or the percentage of historical operating data.

[0129] When the third allocation parameter is equal division of the refrigerant system, the offline division factor can be determined according to the number of indoor units in each refrigerant system. The calculation expression of the offline division factor can be:

[0130] α1=1 / m

[0131] Where α1 is the offline division factor, and m is the number of indoor units in the refrigerant system.

[0132] The offline power allocated to each indoor unit is:

[0133] Z1=Z*α1

[0134] Wherein, Z is the current recorded power of the outdoor unit, Z1 is the offline power allocated to the indoor unit, and α1 is the offline division factor when the third allocation parameter is the average division of the refrigerant system.

[0135] When the third allocation parameter is equal division of indoor units, the offline division factor can be determined according to the number of all indoor units (i.e., all indoor units in the gateway). The calculation expression of the offline division factor can be:

[0136] α2=1 / n

[0137] Wherein, α2 is the offline division factor, and n is the number of all indoor units.

[0138] The offline power allocated to each indoor unit is:

[0139] Z1=Z*α2

[0140] Wherein, Z is the current recorded power consumption of the outdoor unit, and α2 is the offline division factor when the third allocation parameter is the average division of indoor units.

[0141] When the third allocation parameter is the historical operation data ratio division, the offline division factor can be determined based on the historical power consumption of the current indoor unit and the historical power consumption of all indoor units in the refrigerant system. The calculation expression of the offline division factor can be:

[0142] α3=Xi / Xt

[0143] Among them, α3 is the offline classification factor, Xi is the historical power consumption of the current indoor unit, and Xt is the historical power consumption of all indoor units in the refrigerant system.

[0144] The offline power allocated to each indoor unit is:

[0145] Z1=Z*α3

[0146] Among them, Z is the current recorded power of the outdoor unit, Z1 is the offline power allocated to the indoor unit, and the third allocation parameter α3 is the offline division factor when the historical operation data is proportionally divided.

[0147] In this way, the offline power consumption of the outdoor unit can be divided according to different allocation parameters, making the division of offline power consumption highly flexible.

[0148] See also Figure 8 In some embodiments, step 04 includes:

[0149] 041, accumulating the running power consumption of each cycle within the preset time length and accumulating the offline power consumption of each cycle within the preset time length to obtain the running power consumption and the offline power consumption;

[0150] 042, according to the standby division algorithm and the standby power calculation of each cycle within the preset time length, the standby power consumption is obtained;

[0151] 043, the power consumption of the operating power, the power consumption of the standby power and the power consumption of the offline power are added together to obtain the power consumption of the indoor unit for the preset time.

[0152] Please further combine Figure 2In some embodiments, sub-steps 041-043 may be implemented by the calculation module 14. That is, the calculation module 14 may be configured to accumulate the operating power consumption of each cycle within a preset duration and accumulate the offline power consumption of each cycle within the preset duration to obtain the operating power consumption and the offline power consumption, calculate the standby power consumption according to the standby division algorithm and the standby power consumption of each cycle within the preset duration, and add the operating power consumption, the standby power consumption, and the offline power consumption to obtain the power consumption of the indoor unit for the preset duration.

[0153] In some embodiments, the processor can be used to accumulate the operating power consumption of each cycle within a preset time and accumulate the offline power consumption of each cycle within the preset time to obtain the operating power consumption and the offline power consumption, and calculate the standby power consumption according to the standby division algorithm and the standby power consumption of each cycle within the preset time to obtain the standby power consumption, and add the operating power consumption, standby power consumption and offline power consumption to obtain the power consumption of the indoor unit in the preset time.

[0154] The calculation expression for the running power consumption is obtained by accumulating the running power of each cycle within the preset time:

[0155] X=X1+X2+.....+Xn

[0156] Among them, X is the power consumption of the running power within the preset time, X1 is the power consumption of the running power in the first cycle, X2 is the power consumption of the running power in the second cycle, and Xn is the power consumption of the running power in the nth cycle.

[0157] The calculation expression for the power consumption of offline power consumption is obtained by accumulating the offline power consumption in each cycle within the preset time period:

[0158] Z=Z1+Z2+.....+Zn

[0159] Among them, Z is the power consumption of offline electricity within the preset time length, Z1 is the power consumption of offline electricity in the first cycle, Z2 is the power consumption of offline electricity in the second cycle, and Zn is the power consumption of offline electricity in the nth cycle.

[0160] The standby division algorithm may include but is not limited to one of system average division, system power-on division, indoor unit average division and power consumption ratio division.

[0161] When the standby planning algorithm is system average division, the standby power consumption within the preset time is:

[0162] Y=Y11+Y12+.....+Y1n

[0163] Among them, Y is the standby power consumption within the preset time, Y11 is the standby power consumption in the first cycle within the preset time, Y12 is the standby power consumption in the second cycle within the preset time, and Y1n is the standby power consumption in the nth cycle within the preset time.

[0164] When the standby planning algorithm is divided into system startup, the standby power consumption within the preset time is:

[0165] Y=[(Y11+Y12+.....+Y1n)+.....+(Ym1+Ym2+.....+Ymn)] / R

[0166] Where Y is the standby power consumption within the preset time, m is the mth indoor unit in the refrigerant system, n is the number of cycles within the preset time, and R is the number of indoor units with indoor unit power X>0 within the preset time.

[0167] When the standby planning algorithm is divided into power consumption ratios, the standby power consumption within the preset time is:

[0168] Y=standby power of all outdoor units in this hour*i

[0169] Here, i is the percentage value, which is calculated by dividing the operating power of the current indoor unit in this hour by the operating power of all indoor units in this hour.

[0170] The calculation expression for the power consumption of the indoor unit during the preset time is:

[0171] W=X+Y+Z

[0172] Wherein, W is the power consumption of the current indoor unit within the preset time, X is the operating power of the current indoor unit within the preset time, Y is the standby power of the current indoor unit within the preset time, and Z is the offline power of the current indoor unit within the preset time.

[0173] See also Figure 9 In some embodiments, the power division method further includes:

[0174] 06. Determine the set rate of the target indoor unit within the preset time period;

[0175] 07. Calculate the electricity cost of the target indoor unit based on the set rate and power consumption.

[0176] Please combine Figure 10 In some embodiments, the power allocation device 10 further includes a determination module 16 and a billing module 17, wherein step 06 can be implemented by the determination module 16, and step 07 can be implemented by the billing module 17. That is, the determination module 16 can be used to determine a set rate for the target indoor unit within a preset time period, and the billing module 17 can be used to calculate the electricity usage fee of the target indoor unit based on the set rate and power consumption.

[0177] In some embodiments, the processor may be configured to determine a set rate for the target indoor unit within a preset time period, and calculate the electricity cost of the target indoor unit based on the set rate and the electricity consumption.

[0178] It should be noted that the set rate can be either a fixed rate or a variable rate. The variable rate sets different rates based on the time period. For example, the rate at night (24:00-7:00) is lower than the rate during the day (7:00-24:00). If the set rate is a fixed rate, the electricity cost of the target indoor unit during the preset time period is: electricity consumption * fixed rate.

[0179] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A method for dividing power consumption, used in a multi-split air conditioning system, characterized in that: The multi-split air conditioning system includes at least one outdoor unit, multiple indoor units, and a metering device, wherein the metering device is used to record the power consumption of the outdoor unit. The power division method includes: Periodically collecting operating data of the multi-split air conditioning system to obtain multiple sets of operating data, each set of operating data including first operating data of the indoor unit, second operating data of the outdoor unit, and power recorded by the metering device; Determining a power consumption type of the recorded power according to the first operating data and the second operating data, the power consumption type including one of operating power, standby power, or offline power; dividing the recorded power to the indoor units according to the power consumption type, the first operating data and a preset allocation parameter; Calculating the power consumption of each power consumption type in each of the indoor units within a preset time period to obtain the power consumption of each of the indoor units during the preset time period; and According to the shared partitioning algorithm, the power consumption of the shared indoor unit during the preset time period is divided into the target indoor unit to obtain the total power consumption of the target indoor unit. The indoor unit includes the shared indoor unit and the target indoor unit. The shared partitioning algorithm includes one of average partitioning of indoor units, average partitioning of indoor unit groups, partitioning of indoor unit groups by area size, partitioning of the number of devices within the indoor unit group, or partitioning of the power consumption ratio within the indoor unit group.

2. The method for dividing power according to claim 1, characterized in that: The preset allocation parameter includes a first allocation parameter, and allocating the recorded power to the indoor unit according to the power consumption type, the first operating data, and the preset allocation parameter includes: When the power consumption type is operating power, generating a refrigerant coefficient, a demand coefficient, and a time coefficient of the outdoor unit according to the first allocation parameter; calculating an energy consumption coefficient and an energy flow coefficient of the indoor unit according to the first operating data; The distributed power of each indoor unit is calculated according to the refrigerant coefficient, the demand coefficient, the time coefficient, the energy consumption coefficient and the energy flow coefficient.

3. The method for dividing power according to claim 2, characterized in that: Generating the refrigerant coefficient, demand coefficient, and time coefficient of the outdoor unit according to the first allocation parameter includes: Generate a refrigerant coefficient, a demand coefficient, and a time coefficient of the outdoor unit based on user preference settings; or Generate a refrigerant coefficient, a demand coefficient, and a time coefficient of the outdoor unit based on user definition; or Obtain historical operation data; The refrigerant coefficient, demand coefficient and time coefficient of the outdoor unit are calculated according to the historical operation data.

4. The method for dividing power according to claim 2, characterized in that: The first operating data includes a set temperature, an ambient temperature, an operating mode, an electronic expansion valve opening, an electronic expansion valve diameter, and an air outlet temperature. Calculating the energy consumption coefficient and the energy flow coefficient of the indoor unit based on the first operating data includes: Calculating a capacity requirement coefficient of the indoor unit according to a set temperature of the indoor unit, an ambient temperature, an operation mode, and an opening of an electronic expansion valve; Calculating the energy consumption coefficient according to the number of the indoor units and the capacity requirement coefficient; The energy flow coefficient is calculated according to the opening degree of the electronic expansion valve, the diameter of the electronic expansion valve and the air outlet temperature.

5. The method for dividing power according to claim 1, characterized in that: The preset allocation parameter includes a second allocation parameter, the second allocation parameter including one of an average division of the refrigerant system, an average division of the powered-on devices in the refrigerant system, an average division of the indoor units, and a historical power usage ratio division, and the recorded power is allocated to the indoor units according to the power consumption type, the first operating data, and the preset allocation parameter, including: When the power consumption type is standby power, the recorded power is allocated to the indoor unit according to the second allocation parameter.

6. The method for dividing power according to claim 1, characterized in that: The preset allocation parameter includes a third allocation parameter, the third allocation parameter including one of an average division of the refrigerant system, an average division of the indoor units, and a historical operation data ratio division, and the power is allocated to each of the indoor units according to the power consumption type and the preset allocation parameter, including: In a case where the power consumption type of the recorded power is offline power, determining an offline division factor according to the third allocation parameter; The recorded power is distributed to the indoor units according to the offline division factor.

7. The method for dividing power according to claim 1, characterized in that: Calculating the power consumption of each power consumption type in each of the indoor units within a preset time period to obtain the power consumption of each of the indoor units during the preset time period includes: Accumulate the running power of each cycle within the preset time and accumulate the offline power of each cycle within the preset time to obtain the running power consumption and the offline power consumption; Calculating the standby power consumption of each cycle within a preset time period according to the standby division algorithm and the standby power consumption is obtained; The power consumption of the operating power, the power consumption of the standby power and the power consumption of the offline power are added together to obtain the power consumption of the indoor unit during the preset time.

8. The method for dividing power according to claim 1, characterized in that: The power division method further includes: Determining a set rate for the target indoor unit within the preset time period; The electricity cost of the target indoor unit is calculated according to the set rate and the power consumption.

9. An electricity dividing device for a multi-split air conditioning system, characterized in that: The multi-split air conditioning system includes at least one outdoor unit, a plurality of indoor units, and a metering device, wherein the metering device is used to record the power consumption of the outdoor unit, and the power division device includes: a collection module, configured to periodically collect operating data of the multi-split air conditioning system to obtain multiple sets of operating data, each set of operating data including first operating data of the indoor unit, second operating data of the outdoor unit, and recorded power of the metering device; a determination module, configured to determine a power consumption type of the recorded power according to the first operation data and the second operation data, the power consumption type including at least one of operating power, standby power, and offline power; a first dividing module, configured to divide the recorded power to the indoor units according to the power consumption type, the first operating data, and a preset distribution parameter; a calculation module, configured to calculate the power consumption of each power consumption type in each of the indoor units within a preset time period, to obtain the power consumption of each of the indoor units within the preset time period; and The second division module is used to divide the power consumption of the shared indoor unit during the preset time period to the target indoor unit according to the shared division algorithm to obtain the total power consumption of the target indoor unit, the indoor unit includes the shared indoor unit and the target indoor unit, and the shared division algorithm includes one of average division of indoor units, average division of indoor unit groups, division of indoor unit groups by area size, division of the number of equipment within the indoor unit group, or division of power consumption ratio within the indoor unit group.

10. A multi-split air conditioning system, characterized in that: The device comprises a processor and a memory, wherein the memory stores a computer program. When the computer program is executed by the processor, the processor implements the power division method according to any one of claims 1 to 8.

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