Air source heat pump heating system, method and computer readable storage medium

Abstract

The present invention discloses an air source heat pump heating system, method and computer-readable storage medium, and relates to the technical field of air source heat pump heating. The air source heat pump heating system includes a heating system and a control system. The control system includes a temperature collector, a data concentrator, a control platform and a controller. The temperature collector measures the real-time indoor temperature information of the target room. The data concentrator collects, stores and transmits the indoor temperature information. The control platform determines the reference temperature value, sends a shutdown control signal when the real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value, and sends an open control signal when the real-time reference temperature value of the heat-using end is less than the lower limit value. The controller controls m air source heat pump units to start running according to the open control signal; and controls n air source heat pump units to stop running according to the close control signal. The embodiments of the present invention improve heating efficiency, reduce heating costs, and make the air source heat pump heating system more energy-efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of air source heat pump heating, and in particular to an air source heat pump heating system, method and computer-readable storage medium. Background Art

[0002] Air source heat pump heating has the advantages of small space occupation, energy saving, environmental protection and easy use, and is becoming more and more popular.

[0003] When using existing air source heat pump systems, especially in large commercial projects, heat pump manufacturers generally only provide air source heat pump units, and the heating system in the building is built by the user himself. The air source heat pump and the heating system in the building are controlled separately. Therefore, one side of the air source heat pump system only controls the start and stop of the air source heat pump unit according to the return water temperature on this side. This approach makes it difficult to achieve the best energy-saving effect. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide an air source heat pump heating system, method and computer readable storage medium to improve heating efficiency, reduce heating costs, and make the air source heat pump heating system more energy-efficient.

[0005] To achieve the above objectives, the present invention provides the following solutions:

[0006] An air source heat pump heating system includes a control system and a heating system for providing heat to a heat-using end; the heat-using end includes at least one room that needs to be heated;

[0007] The heating system comprises at least: M air source heat pump units, a heat storage tank, and a heat exchanger built into the heat storage tank; M is a positive integer greater than or equal to 2; the heat storage tank is connected to a terminal radiator in the room;

[0008] The control system includes:

[0009] Temperature collector, installed in the target room, is used to:

[0010] Measuring real-time indoor temperature information of the target room; the target room includes: a room that needs to be individually temperature-controlled in the at least one room that needs to be heated;

[0011] A data concentrator, connected to the temperature collector, for transmitting real-time indoor temperature information of the target room;

[0012] Control platform for:

[0013] Determining a real-time reference temperature value of the heat-using end; the real-time reference temperature value is determined based on real-time indoor temperature information of at least one of the target rooms;

[0014] When the real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value, a closing control signal is sent; and when the real-time reference temperature value of the heat-using end is less than the lower limit value, an opening control signal is sent;

[0015] Controller for:

[0016] Performing a start-up operation according to the start-up control signal, the start-up operation comprising: controlling m of the air source heat pump units to start running, where m is a positive integer and is less than M;

[0017] A stop operation is performed according to the shutdown control signal, and the stop operation includes: controlling n of the air source heat pump units to stop running, where n is a positive integer and is less than M.

[0018] Optionally, before sending the shutdown control signal or the startup control signal, the control platform is further configured to:

[0019] Different upper and lower limits are set for different time periods; the upper and lower limits are specifically the upper and lower limits of the temperature of the hot water in the water storage tank;

[0020] The different time periods include: a peak electricity price time period and a valley electricity price time period; the upper limit value in the peak electricity price time period is lower than the upper limit value in the valley electricity price time period; the lower limit value in the peak electricity price time period is lower than the lower limit value in the valley electricity price time period;

[0021] The real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value specifically: the real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value of the current time period;

[0022] Specifically, the real-time reference temperature value of the heat-using end is less than the lower limit value: the real-time reference temperature value of the heat-using end is less than the lower limit value of the current time period.

[0023] Optionally, the start operation is performed in at least one cycle until the real-time reference temperature value is greater than or equal to the lower limit value of the current time period, or the M air source heat pump units all start to operate;

[0024] The stopping operation is performed in at least one cycle until the real-time reference temperature value is less than the upper limit value of the current time period, or the M air source heat pump units all stop running.

[0025] Optionally, the control platform is further used to:

[0026] If the real-time reference temperature value enters the target range, the current total number of operating air source heat pump units is maintained; the target range includes: less than the upper limit value of the current period and greater than or equal to the lower limit value of the previous period.

[0027] Optionally, the hot water storage tank further includes:

[0028] an auxiliary heating module connected to the control platform;

[0029] The control platform is also used for:

[0030] During the electricity price valley time period, when preset conditions are met, the auxiliary heating module is controlled to heat the hot water in the water storage tank; wherein the preset conditions include: the M air source heat pump units all start running at time t, and the real-time reference temperature value is less than the lower limit value of the electricity price valley time period.

[0031] Optionally, the control system further includes:

[0032] A temperature control valve is installed at the heating inlet of the target room, and the heat storage tank is connected to the terminal radiator in the target room through the temperature control valve; the temperature control valve corresponds to the temperature collector on a one-to-one basis;

[0033] The temperature control valve includes a control module and a valve body;

[0034] The control module is used to:

[0035] When the real-time indoor temperature information of the target room is greater than or equal to a preset temperature value, controlling the valve body to reduce the opening degree so as to reduce the flow of hot water flowing through the terminal radiator of the target room;

[0036] When the real-time indoor temperature information of the target room is less than the preset temperature value, the valve body is controlled to increase its opening to increase the flow of hot water flowing through the terminal radiator of the target room.

[0037] Optionally, the control platform is further used to:

[0038] When the real-time indoor temperature information of the target room is greater than or equal to the preset temperature value, sending an opening reduction instruction to the control module;

[0039] When the real-time indoor temperature information of the target room is less than the preset temperature value, sending an opening increase instruction to the control module;

[0040] The opening reduction instruction is used to instruct the control module to control the valve body to reduce the opening; the opening increase instruction is used to instruct the control module to control the valve body to increase the opening;

[0041] The preset temperature value is set by the temperature collector or by the control platform.

[0042] Optionally, in terms of maintaining the total number of air source heat pump units currently in operation, the controller is specifically configured to:

[0043] Stop the air source heat pump unit with the longest running time, and at the same time, start the air source heat pump unit with the shortest running time.

[0044] An air source heat pump heating method for controlling the heating system;

[0045] The method comprises:

[0046] Obtaining real-time indoor temperature information of a target room; the target room is a room that requires separate temperature control at the hot end;

[0047] Determining a real-time reference temperature value of the heat-using end; the real-time reference temperature value is determined based on real-time indoor temperature information of at least one of the target rooms;

[0048] When the real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value, a closing control signal is sent to the controller; and when the real-time reference temperature value of the heat-using end is less than the lower limit value, an opening control signal is sent to the controller;

[0049] The shutdown control signal is used to control the controller to perform a startup operation, wherein the startup operation includes: controlling m air source heat pump units to start running, where m is a positive integer and is less than M;

[0050] The start control signal is used to control the controller to perform a stop operation, and the stop operation includes: controlling n of the air source heat pump units to stop running, where n is a positive integer and is less than M.

[0051] An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, which, when executed on a computer, enable the computer to execute operations executed by a control platform or a controller.

[0052] According to the specific embodiments provided by the present invention, the following technical effects are disclosed:

[0053] In conventional air-source heat pump heating systems, since the air-source heat pump unit is controlled based on the return water temperature, the following situations may occur: the indoor temperature at the heat-using end has not yet reached the required level, but the air-source heat pump unit has been controlled to shut down, or the indoor temperature at the heat-using end has far exceeded the required level, but the air-source heat pump unit continues to operate, resulting in low heating efficiency. Compared with the conventional method of controlling the start and stop of the air-source heat pump unit based on the return water temperature on one side of the air-source heat pump system, the control system in the embodiment of the present invention controls the start and stop of the air-source heat pump unit based on the real-time reference temperature value of the heat-using end (determined by the real-time indoor temperature information of the target room) to keep the real-time reference temperature value of the heat-using end between the upper and lower limits to meet the basic heating demand, thereby achieving a certain degree of control over the indoor temperature of the heat-using end, eliminating the need for separate control of the two, and making the heat provided by the air-source heat pump unit more accurate. It also reduces the amount of heat supplied when the heat demand at the heat-using end is low, thereby improving heating efficiency, reducing energy waste while meeting the basic heating demand, reducing heating costs, and making the air-source heat pump heating system more energy-efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0055] Figure 1 A schematic structural diagram of an air source heat pump heating system provided in an embodiment of the present invention;

[0056] Figure 2 A schematic structural diagram of a hot end provided in an embodiment of the present invention;

[0057] Figure 3 A schematic diagram of information transmission connections provided by an embodiment of the present invention;

[0058] Figure 4 A schematic diagram of the structure of a control platform provided in an embodiment of the present invention;

[0059] Figure 5 A schematic diagram of the working process of the air source heat pump heating system provided by an embodiment of the present invention;

[0060] Figure 6 A schematic flow chart of an air source heat pump heating method provided in an embodiment of the present invention.

[0061] Explanation of symbols:

[0062] Heating system 1, air-source heat pump unit 11, heat storage tank 12, auxiliary heating module 121, heat exchanger 13, terminal radiator 14, target room 15, temperature collector 2, data concentrator 3, control platform 4, controller 5, hot end 6, temperature control valve 7, server 8. DETAILED DESCRIPTION

[0063] The structures and scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field will know that with the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0064] It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0065] The purpose of the embodiments of the present invention is to provide an air source heat pump heating system, method and computer readable storage medium to improve heating efficiency, reduce heating costs, and make the air source heat pump heating system more energy-efficient.

[0066] Figure 1 The exemplary structure of the air source heat pump heating system is shown, including a control system and a heating system 1 .

[0067] The control system and heating system 1 are introduced below.

[0068] The heating system 1 provides heat to a heat-using end 6. The heat-using end 6 can be a factory, an office, a school, a hotel, a commercial building, a residential building, etc. The heat-using end 6 includes at least one room that needs to be heated.

[0069] In one example, a heating device is installed in a room that needs to be heated, and the heating device includes a pipe network (which can be called an internal pipe network) and various terminal radiators 14 in the room. In addition, an external pipe network is also set outside the room, and the connection between the external pipe network and the internal pipe network can be called a heating inlet.

[0070] The heating system 1 includes at least: M air source heat pump units 11, a hot water storage tank 12, and a heat exchanger 13 built into the hot water storage tank 12; M is a positive integer greater than or equal to 2; the hot water storage tank 12 is connected to the terminal radiator 14 in the above-mentioned room. In one example, those skilled in the art can flexibly design the value of M, such as 2, 3, 5, 8, etc. Each air source heat pump unit 11 can include the same or different numbers of air source heat pumps. The air source heat pump units 11 composed of different numbers of air source heat pumps have different corresponding heating capacities and heating areas. For example, the power of the air source heat pump unit 11 is between 20 horsepower and 60 horsepower, and the heating capacity is between 75,000W and 160,000W (there are differences between air source heat pump units 11 of different brands). The heating area corresponding to each horsepower is 20 square meters. The heating effect will vary greatly depending on the region and the insulation conditions of the room.

[0071] In one example, the heating system 1 may include one or more hot water storage tanks 12. The volume of the hot water storage tank 12 corresponds to the heating area. For example, a 1 cubic meter hot water storage tank 12 corresponds to a heating area of 50-100 square meters. The specific size is determined based on the heat usage properties of the heat-using end 6 and site conditions.

[0072] The heat exchanger 13 in the hot water storage tank 12 can replace the heat generated by the air source heat pump unit 11 into the hot water storage tank 12 to prepare hot water.

[0073] In other embodiments of the present invention, there is also an auxiliary heating module 121 in the hot water storage tank 12. The auxiliary heating module 121 is used to supplement heat for the heating system 1 under extreme weather conditions. In addition, the hot water in the hot water storage tank 12 can also be heated during the off-peak period of electricity prices to reduce heating costs.

[0074] In one example, the terminal radiator 14 may be a radiator, a floor heating pipe, or a fan coil unit.

[0075] Of course, in other examples of the present invention, the heating system 1 may also include a water pump, a water supply pipe, a return pipe, a valve, etc. Among them, the air source heat pump unit 11, the water pump, the water supply pipe, the hot water storage tank 12, the heat exchanger 13, the return pipe, and the valve constitute the primary system. The water pump, the water supply pipe, the valve, the return pipe, and the hot end 6 constitute the secondary system. The primary system and the secondary system are both independent closed-loop systems. The result of the primary system circulation is that the heat generated by the air source heat pump unit 11 heats the water in the hot water storage tank 12 to form hot water. The result of the secondary system circulation is that the hot water in the hot water storage tank 12 is heated to the hot end 6 through the water pump, the water supply pipe, the valve, and the return pipe.

[0076] As mentioned above, the heat-using end 6 includes at least one room that needs to be heated.

[0077] The definition of a room requiring heating may vary across different heating scenarios. For example, in residential heating scenarios, a room requiring heating could be a building, a unit within a building, or a household. Furthermore, in commercial or industrial heating scenarios (e.g., factories, offices, schools, hotels, and commercial buildings), a room requiring heating could be a building, a unit within a building, a single functional room, or even smaller granularity.

[0078] The functional single room here can be a production workshop, classroom, office, a single room in a hotel rented to users, etc. according to different heating scenarios. The above-mentioned smaller space granularity can refer to the partitioned space divided within the functional single room. Taking the room rented to users in a hotel as an example, it can be further divided into partitioned spaces such as toilets and living spaces.

[0079] After introducing the heating system 1, the control system is introduced in detail.

[0080] The control system includes: a temperature collector 2, a data concentrator 3, a control platform 4 and a controller 5.

[0081] See Figure 2 , the temperature collector 2 is installed in the target room 15 and is used to:

[0082] Measure the real-time indoor temperature information of the target room 15. The target room 15 is a room that needs to be heated and needs to be individually and accurately controlled in temperature.

[0083] In one example, the temperature collector 2 can be a temperature sensor. The temperature sensor is installed in the target room 15 and is used to measure and upload the indoor temperature information of the target room 15. The number of temperature sensors installed is determined by the number of target rooms 15. The temperature sensor can be controlled by the control platform 4. The real-time indoor temperature information of the target room 15 is the primary basis for regulating the air source heat pump unit 11.

[0084] In other embodiments of the present invention, the temperature collector 2 may also be used to set a preset temperature value, which will be described later in this article.

[0085] See Figure 2 , the data concentrator 3 is connected to the temperature collector 2. One data concentrator 3 can be connected to one or more temperature collectors 2.

[0086] The data concentrator 3 is used to transmit the real-time indoor temperature information of the target room 15 .

[0087] In addition, the data concentrator 3 may also store the real-time indoor temperature information of the target room 15 .

[0088] The data concentrator 3 may be installed inside or outside the target room 15 , for example.

[0089] When the target room 15 is part of a building, the data concentrator 3 may also be installed in the building where the target room 15 is located. One data concentrator 3 may be installed in one building.

[0090] In one example, the data concentrator 3 can be a communication module with a storage function, which can store the real-time indoor temperature information of the target room 15, and can also transmit the real-time indoor temperature information of the target room 15 collected by the temperature collector 2 in a wired or wireless manner.

[0091] Control platform 4 is used for:

[0092] Determine a real-time reference temperature value of the hot end 6; the real-time reference temperature value is determined based on real-time indoor temperature information of at least one target room;

[0093] Execute control strategies;

[0094] In one example, the control strategy includes:

[0095] When the real-time reference temperature value of the hot end 6 is greater than or equal to the upper limit, a closing control signal is sent, and when the real-time reference temperature value of the hot end 6 is less than the lower limit, an opening control signal is sent.

[0096] The above-mentioned closing control signal and opening control signal are used to control the controller 5. This article will introduce them later.

[0097] In other embodiments of the present invention, the control platform 4 in all the above embodiments can also be used to set an upper temperature limit and a lower temperature limit, which are specifically the upper temperature limit and the lower temperature limit of the hot water in the hot water storage tank 12 .

[0098] In one example, the control platform 4 may be configured to set different upper and lower limits for different time periods.

[0099] In this example, the aforementioned "the real-time reference temperature value of the hot end 6 is greater than or equal to the upper limit value" specifically includes: the real-time reference temperature value of the hot end 6 is greater than or equal to the upper limit value of the current time period; the aforementioned "the real-time reference temperature value of the hot end 6 is less than the lower limit value" specifically includes: the real-time reference temperature value of the hot end 6 is less than the lower limit value of the current time period.

[0100] Figure 4 An exemplary structure of the control platform 4 in all the above embodiments is shown, which specifically includes: an information acquisition module, a room temperature acquisition module, a room temperature control module and a heat pump control module.

[0101] The information collection module is used to input basic data of the heat user 6. Basic data includes room information (floor, location) and the heating area of the target room 15. Input here can refer to manual input or input through other devices (such as equipment dedicated to maintaining basic data).

[0102] The real-time reference temperature value is determined based on real-time indoor temperature information of at least one target room.

[0103] Specifically, when there is only one target room, the real-time indoor temperature information of the target room can be directly used as the real-time benchmark temperature value; when there are multiple target rooms, the median or average value of the real-time indoor temperature information of multiple target rooms can be selected as the real-time benchmark temperature value.

[0104] In addition, the room temperature acquisition module can receive the real-time indoor temperature information of the target room 15 from the data concentrator 3 and match it with the room information.

[0105] Furthermore, the room temperature acquisition module can store real-time indoor temperature information (real-time temperature). For example, the room temperature acquisition module can store historical indoor temperature information (historical temperature) of the heating end 6 and the target room 15 for the past day, week, month, and heating season.

[0106] The room temperature acquisition module can also calculate the average historical indoor temperature information (average temperature) of the heating end 6 and / or the target room 15 in the past day, week, month and heating season, and plot the average historical indoor temperature information into a curve graph.

[0107] In other embodiments of the present invention, please refer to Figure 4 The room temperature control module can include manual control mode and automatic control mode. When switched to manual control mode, the preset temperature value can be manually set using the temperature collector 2 installed in the room. When switched to automatic control mode, the room temperature control module can set the time period according to different time periods. In addition, the room temperature control module can automatically set different preset temperature values for different time periods. The preset temperature values will be described later.

[0108] Still see Figure 4 ,The heat pump control module is used to execute the above control strategy.

[0109] In other embodiments of the present invention, the heat pump control module may also be used to set an upper temperature limit and a lower temperature limit.

[0110] In addition, the heat pump control module can also be used to set different upper and lower limits for different time periods.

[0111] In one example, the different time periods include a peak electricity price period and a valley electricity price period. The upper limit value during the peak electricity price period is lower than the upper limit value during the valley electricity price period. The lower limit value during the peak electricity price period is lower than the lower limit value during the valley electricity price period.

[0112] Next, the controller 5 will be described.

[0113] The controller 5 can be installed at the power supply of the air source heat pump unit 11, receive the control strategy (control instructions) issued by the heat pump control module of the control platform 4, and control the start and stop of the air source heat pump unit 11 according to the control instructions.

[0114] Based on the aforementioned opening control signal and closing control signal, the controller 5 can be used for at least:

[0115] The start-up operation is performed according to the start-up control signal, and the start-up operation includes: controlling m air source heat pump units 11 to start running, where m is a positive integer and is less than M.

[0116] The stop operation is performed according to the shutdown control signal, and the stop operation includes: controlling n air source heat pump units 11 to stop running, where n is a positive integer and is less than M.

[0117] That is, after receiving the start control signal from the control platform 4, the controller 5 performs the start operation - it controls the m air source heat pump units 11 to start running; similarly, after receiving the on / off control signal from the control platform 4, the controller 5 performs the stop operation - it controls the n air source heat pump units 11 to stop running.

[0118] In one example, m may be carried in the on control signal, and n may be carried in the off control signal. In another example, m and n may be default values, in which case they do not need to be carried in the signal.

[0119] Those skilled in the art can flexibly design the value of m according to actual needs, for example, equal to 1, 2, etc. Similarly, the value of n can also be flexibly designed according to actual needs, for example, 1, 2, etc. No further details will be given here.

[0120] It should be noted that the above-mentioned start-up operation is performed in at least one cycle until the real-time reference temperature value is greater than or equal to the lower limit value of the current time period, or the M air source heat pump units 11 all start running.

[0121] Similarly, the above-mentioned stop operation is performed in at least one cycle until the real-time reference temperature value is less than the upper limit value of the current time period, or the M air source heat pump units 11 all stop running.

[0122] The cycle length can be set according to actual needs, such as 10 minutes, 15 minutes, 30 minutes, 1 hour, etc.

[0123] Since the control platform 4 controls the controller 5 to perform the start or stop operation, the following takes the start operation as an example to introduce the operations performed by the control platform 4 and the controller 5:

[0124] Within a cycle, the control platform 4 determines the real-time reference temperature value of the hot end (referred to as the reference value); if the reference value is greater than the upper limit value (of the current time period), the control platform 4 sends a shutdown control signal, and the controller 5 shuts down the m groups of air source heat pump units (referred to as the pump groups) based on the signal.

[0125] Afterwards, the control platform 4 returns to execute the operation of the next cycle.

[0126] In the next cycle, the control platform 4 will also determine the reference value. If the reference value is still greater than the upper limit value (of the current time period), the control platform 4 will send a shutdown control signal to control the controller 5 to shut down m pump groups again. This cycle will be repeated until the reference value is less than or equal to the upper limit value (of the current time period), or all M pump groups are shut down.

[0127] Of course, it is possible that the baseline value can drop to or below the upper limit value (of the current period) after only one turn-on operation. In this case, the turn-on operation is performed only once, that is, only within one cycle. Of course, multiple turn-on operations may be required. Therefore, the above description of the turn-on operation is that it is performed within at least one cycle.

[0128] Similarly, the stop operation can be performed once or multiple times, which will not be described in detail here.

[0129] To sum up, the control system in the embodiment of the present invention controls the start and stop of the air source heat pump unit 11 according to the real-time indoor temperature information of the target room 15 (i.e., the real-time reference temperature value of the heat end 6), thereby realizing that the air source heat pump unit 11 directly controls the indoor temperature of the heat end 6, which not only makes the heat provided by the air source heat pump unit 11 more accurate, but also reduces the heat supply when the heat demand of the heat end 6 is not high, improves the heating efficiency, minimizes energy waste to the greatest extent while meeting basic heat demand, reduces heating costs, and makes the air source heat pump heating system more energy-efficient.

[0130] The following describes other functions achieved by the control platform 4 in cooperation with other devices.

[0131] In other embodiments of the present invention, the control platform 4 (or heat pump control module) in all the above embodiments is further configured to maintain the current total number of operating air source heat pump units 11 if the real-time reference temperature value falls within a target range. The target range includes a value less than the upper limit of the current time period and greater than or equal to the lower limit of the previous time period.

[0132] In other words, the above control strategy may further include: if the real-time reference temperature value enters the target range, maintaining the current total number of operating air source heat pump units 11.

[0133] In one example, the aforementioned maintenance can specifically be static maintenance. Static maintenance here refers to maintaining the motion state of the currently operating air-source heat pump unit 11 unchanged. For example, assume there are five air-source heat pump units, designated as groups a, b, c, d, and e. Groups a and b are currently on, while the other three are off. Groups a and b are maintained on, while the other three are maintained off. From the perspective of the control platform 4, no control instructions or signals need to be issued to achieve static maintenance.

[0134] In another example, the above maintenance may be dynamic maintenance. In this example, in terms of maintaining the current total number of operations of the air source heat pump unit 11, the controller 5 is specifically configured to:

[0135] The air source heat pump unit 11 with the longest running time is stopped, and at the same time, the air source heat pump unit 11 with the shortest running time is started.

[0136] Still using the previous example, assume that Group A and Group B are currently turned on, and the other three groups are turned off. That is, the total number of operations is 2. Among the above 5 groups, Group A has the longest running time, and Group E has the shortest running time. Then Group A can be stopped, and Group E can be turned on at the same time. In this way, the total number of operations is still 2, but the air source heat pump units 11 participating in the operation are dynamically changing. This can prevent the air source heat pump unit 11 from running too long or too short, balance the running time, extend the service life of the air source heat pump unit 11, and ensure the balanced operation of the air source heat pump heating system.

[0137] Since the controller 5 directly controls the start and stop of the air source heat pump units, the control platform 4 can send start and stop instructions to the controller 5 to specify which air source heat pump unit to stop and which air source heat pump unit to start. The above content can be specified in the same instruction, or the air source heat pump unit to be stopped can be specified in one instruction and the air source heat pump unit to be started can be specified in another instruction.

[0138] In one example, the operating time can come from the controller 5. Since the controller 5 directly controls the start and stop of each air source heat pump unit 11, the controller 5 can record the operating time of each air source heat pump unit 11 and upload it to the heat pump control module of the control platform 4.

[0139] Data (including the above-mentioned various instructions, signals, operating time, etc.) can be transmitted between the controller 5 and the control platform 4 using a wireless network (such as a 4G network) or a wired network (such as a cable TV network), which will not be elaborated here.

[0140] The following describes the precise room temperature control function of the target room implemented by the control platform 4.

[0141] In other embodiments of the present invention, in order to achieve precise room temperature control, the control system in all the above embodiments may further include a temperature control valve 7 .

[0142] The temperature control valve 7 is installed at the heating inlet of the target room 15, and the hot water storage tank 12 is connected to the terminal radiator 14 in the target room 15 through the temperature control valve 7. The temperature control valve 7 corresponds to the temperature collector 2 one by one.

[0143] In other embodiments of the present invention, during the electricity price valley period, the control platform 4 is further configured to:

[0144] When the preset conditions are met, the auxiliary heating module 121 is controlled to heat the hot water in the water storage tank 12. The preset conditions include: the M air source heat pump units 11 all start running at time t, and the real-time reference temperature value is less than the lower limit of the electricity price valley time period.

[0145] In one example, the auxiliary heating module 121 may specifically be an electric auxiliary heating device.

[0146] The external pipe network is mentioned above. In one example, the hot water storage tank 12 can be connected to the temperature control valve 7 through the external pipe network. At the same time, the temperature control valve 7 is also connected to the terminal radiator 14 in the standard room 15 through the internal pipe network.

[0147] In one example, the temperature control valve 7 can be a smart temperature control valve powered by a 24V DC power supply. The number of temperature control valves 7 installed is determined by the number of target rooms 15 and corresponds one-to-one with the number of temperature collectors 2. The temperature collectors 2 communicate with the temperature control valves 7 via wireless transmission (470MHz, NB-LOT).

[0148] The temperature control valve 7 includes a control module and a valve body.

[0149] The opening of the valve body is adjustable; the control module can control the valve body to increase the opening to increase the flow of hot water flowing through the terminal radiator 14 of the target room 15, thereby raising the temperature of the target room; the valve body can also be controlled to decrease the opening to reduce the flow of hot water in the terminal radiator 14, thereby lowering the temperature of the target room.

[0150] To achieve precise room temperature control, the control platform 4 can also be used to:

[0151] When the real-time indoor temperature information of the target room 15 is greater than or equal to the preset temperature value, a command to reduce the opening degree is sent to the control module.

[0152] When the real-time indoor temperature information of the target room 15 is lower than the preset temperature value, an instruction to increase the opening degree is sent to the control module.

[0153] The decrease opening instruction is used to instruct the control module to control the valve body to decrease the opening; the increase opening instruction is used to instruct the control module to control the valve body to increase the opening.

[0154] In other embodiments of the present invention, the temperature of the target room 15 can also be autonomously controlled by the temperature control valve 7. The control module of the temperature control valve 7 can obtain real-time indoor temperature information and a preset temperature value from the aforementioned temperature collector (of course, if the preset temperature value is set by the control platform 4, the control module can also obtain the preset temperature value from the control platform 4). Then, the control module controls the valve body to reduce the opening when the real-time indoor temperature information of the target room 15 is greater than or equal to the preset temperature value, and controls the valve body to increase the opening when the real-time indoor temperature information of the target room 15 is less than the preset temperature value.

[0155] The major difference between this embodiment and the previous one is that the temperature of the target room 15 is controlled autonomously by the control module of the temperature control valve 7. The control module determines the relationship between the real-time indoor temperature information and the preset temperature value. In the previous embodiment, the relationship between the real-time indoor temperature information and the preset temperature value is determined by the control platform 4. However, both embodiments can achieve precise control of the target room temperature.

[0156] In both embodiments, the control module can be used to:

[0157] When the real-time indoor temperature information of the target room 15 is greater than or equal to the preset temperature value, the control valve body is controlled to reduce the opening degree to reduce the flow of hot water flowing through the terminal radiator 14 of the target room 15 .

[0158] When the real-time indoor temperature information of the target room 15 is lower than the preset temperature value, the control valve body increases the opening degree to increase the flow of hot water flowing through the terminal radiator 14 of the target room 15 .

[0159] In other embodiments of the present invention, the control module in all the above embodiments is further configured to:

[0160] Collect and transmit valve opening information to the data concentrator 3.

[0161] The data concentrator 3 is also used to transmit valve body opening information to the control platform 4.

[0162] In this embodiment, the control platform 4 can also be used to display the opening information of the valve body.

[0163] It should be noted that, no matter the temperature control valve 7 controls the temperature of the target room by itself or the control platform 4 controls the temperature control valve 7 , the valve opening information can be uploaded to the control platform 4 for display.

[0164] The following describes the communication methods between devices.

[0165] See Figure 3 , the data concentrator 3, the control platform 4, and the controller 5 are all connected through the server 8 to achieve communication.

[0166] In one example, 4G communication is used between the controller 5 and the server 8, 4G communication is used between the data concentrator 3 and the server 8, M-Bus wired communication is used between the data concentrator 3 and the temperature control valve 7, 470 MHz wireless communication is used between the temperature control valve 7 and the temperature collector 2, and the control platform 4 and the server 8 are connected via the Internet. The server 8 can be a computer.

[0167] The embodiments of the present invention further claim to protect an air source heat pump heating method for controlling the heating system 1 in any of the above embodiments.

[0168] See Figure 6 , the above method exemplarily includes the following steps:

[0169] Step S1: Acquire real-time indoor temperature information of the target room 15; the target room 15 is a room that needs to be temperature-controlled separately at the hot end 6.

[0170] Step S1 can be specifically performed by the aforementioned control platform 4 or room temperature acquisition module. The control platform 4 can obtain real-time indoor temperature information of the target room 15 via the aforementioned data concentrator 3. This acquisition can be accomplished by: the data concentrator 3 actively uploading the real-time indoor temperature information of the target room 15 to the control platform 4 (periodically or aperiodically), or by the control platform 4 actively querying the data concentrator 3 (periodically or aperiodically) for real-time indoor temperature information of each target room 15 at the hot end 6.

[0171] The data concentrator 3 obtains the real-time indoor temperature information of the target room 15 from the aforementioned temperature collector 2. For details, please refer to the introduction of the temperature collector 2, which will not be repeated here.

[0172] Step S2: Determine the real-time reference temperature value of the hot end 6.

[0173] The real-time reference temperature value is determined based on the real-time indoor temperature information of at least one target room 15 .

[0174] Step S2 can be specifically executed by the aforementioned control platform 4 or the room temperature acquisition module. For details, please refer to the aforementioned introduction related to the control platform 4, which will not be repeated here.

[0175] Step S3: When the real-time reference temperature value of the hot end 6 is greater than or equal to the upper limit, a closing control signal is sent to the controller 5; and when the real-time reference temperature value of the hot end 6 is less than the lower limit, an opening control signal is sent to the controller 5.

[0176] The shutdown control signal is used to control the controller 5 to perform a startup operation, and the startup operation includes: controlling m air source heat pump units 11 to start running, where m is a positive integer and is less than M.

[0177] The stop control signal is used to control the controller 5 to perform a stop operation, and the stop operation includes: controlling n air source heat pump units 11 to stop running, where n is a positive integer and is less than M.

[0178] The start operation is executed in at least one cycle until the real-time reference temperature value is greater than or equal to the lower limit value of the current period, or the M air source heat pump units 11 all start operating; the stop operation is executed in at least one cycle until the real-time reference temperature value is less than the upper limit value of the current period, or the M air source heat pump units 11 all stop operating. For relevant descriptions, please refer to the above description and will not be repeated here.

[0179] Step S3 can be specifically executed by the aforementioned control platform 4 or the heat pump control module. For details, please refer to the introduction of the aforementioned control platform 4, which will not be repeated here.

[0180] In other embodiments of the present invention, the air source heat pump heating method in all the above embodiments may further include:

[0181] Step S4: setting different upper and lower limits for different time periods.

[0182] The upper limit value and the lower limit value are specifically the upper limit value and the lower limit value of the temperature of the hot water in the hot water storage tank 12 .

[0183] In one example, different time periods include: a peak electricity price time period and a valley electricity price time period; the upper limit value during the peak electricity price time period is lower than the upper limit value during the valley electricity price time period; the lower limit value during the peak electricity price time period is lower than the lower limit value during the valley electricity price time period.

[0184] In this example, the real-time reference temperature value of the hot end 6 is greater than or equal to the upper limit value specifically means that the real-time reference temperature value of the hot end 6 is greater than or equal to the upper limit value of the current time period; the real-time reference temperature value of the hot end 6 is less than the lower limit value specifically means that the real-time reference temperature value of the hot end 6 is less than the lower limit value of the current time period.

[0185] In one example, step S4 can be performed by the aforementioned control platform 4 or the room temperature control module. Detailed contents can be found in the aforementioned related introduction and will not be elaborated here.

[0186] In other embodiments of the present invention, before executing step S4, the above method may further include:

[0187] Step S5: Setting different time periods.

[0188] Taking the peak electricity price period and the valley electricity price period as an example, the starting point and ending point covered by the peak electricity price period and the valley electricity price period may change, and the starting point and / or ending point of the time period can be adjusted through step S5.

[0189] For example, the control platform 4 or the heat pump control module may execute the above step S4 (or execute steps S5 and S4) before step S1.

[0190] In addition, the following situation may also exist: different time periods correspond to default upper and lower limits or the upper and lower limits have been set, but at any time during the heating process, the upper and lower limits need to be reset. The control platform 4 can execute the above step S4 to reset the upper and lower limits whenever necessary.

[0191] Similarly, at any point during the heating process, there may be a need to reset the time period. Therefore, the control platform 4 or the heat pump control module can execute steps S5 and S4 above whenever necessary to reset the time period and the corresponding upper and lower limits. Of course, if only the time period needs to be changed and the upper and lower limits do not need to be changed, the control platform 4 or the heat pump control module can also execute only step S5 without executing step S4.

[0192] In other embodiments of the present invention, the air source heat pump heating method in all the above embodiments may further include:

[0193] Step S6: If the real-time reference temperature value enters the target range, the current total number of operating air source heat pump units 11 is maintained.

[0194] The target range includes: less than the upper limit of the current period and greater than or equal to the lower limit of the previous period.

[0195] Step S6 can be specifically executed by the aforementioned control platform 4 or the heat pump control module. For details, please refer to the introduction of the aforementioned control platform 4, which will not be repeated here.

[0196] In other embodiments of the present invention, the air source heat pump heating method in all the above embodiments may further include:

[0197] Step S7: During the electricity price valley period, when the preset conditions are met, the auxiliary heating module 121 is controlled to heat the hot water in the hot water storage tank 12 .

[0198] The preset conditions include: the M air source heat pump units 11 all start running at time t, and the real-time reference temperature value is less than the lower limit value of the electricity price valley time period.

[0199] Step S7 may be specifically executed by the aforementioned control platform 4 or the heat pump control module. For details, please refer to the introduction of the aforementioned control platform 4, which will not be described in detail here.

[0200] In other embodiments of the present invention, when the above system includes a temperature control valve 7 (including a control module and a valve body), in order to achieve precise control of the room temperature of the target room, the air source heat pump heating method in all the above embodiments may further include:

[0201] Step S8: When the real-time indoor temperature information of the target room 15 is greater than or equal to the preset temperature value, the control valve body is controlled to reduce the opening to reduce the flow of hot water flowing through the terminal radiator 14 of the target room 15.

[0202] Step S9: When the real-time indoor temperature information of the target room 15 is less than the preset temperature value, the control valve body increases the opening to increase the flow of hot water flowing through the terminal radiator 14 of the target room 15 .

[0203] Step S8 or step S9 can be performed by the aforementioned temperature control valve 7 itself, or the temperature control valve 7 can be controlled by the control platform 4 to perform step S8 or S9. For details, please refer to the introduction of the aforementioned temperature control valve 7, which will not be repeated here.

[0204] In the case where the temperature control valve 7 is controlled by the control platform 4, in other embodiments of the present invention, the air source heat pump heating method in all the above embodiments may further include:

[0205] Step S10: When the real-time indoor temperature information of the target room 15 is greater than or equal to the preset temperature value, a command to reduce the opening degree is sent to the control module.

[0206] The opening reduction instruction is used to instruct the control module to control the valve body to reduce the opening.

[0207] Step S11: When the real-time indoor temperature information of the target room 15 is lower than the preset temperature value, an instruction to increase the opening degree is sent to the control module.

[0208] The increase opening instruction is used to instruct the control module to increase the opening of the control valve body.

[0209] The preset temperature value is set by the temperature collector 2 or by the control platform 4 .

[0210] Step S10 or step S11 may be specifically executed by the aforementioned control platform 4 . For details, please refer to the introduction of the aforementioned control platform 4 , which will not be described in detail here.

[0211] After the control platform 4 executes step S10 or step S11 , the control module executes the above-mentioned step S8 or S9 based on the received instruction.

[0212] In other embodiments of the present invention, the air source heat pump heating method in all the above embodiments may further include:

[0213] Step S12: Stop the air source heat pump unit 11 with the longest running time, and at the same time, start the air source heat pump unit 11 with the shortest running time.

[0214] Step S12: It can be specifically executed by the aforementioned controller 5. For details, please refer to the introduction of the aforementioned controller 5, which will not be described here.

[0215] In another embodiment of the present invention, see Figure 5 After the air source heat pump heating system starts running, step 1 is executed: collecting indoor temperature information and information of the air source heat pump unit 11.

[0216] Step 1 can be completed using the room temperature acquisition module and data concentrator 3 of the previous example. For details, please refer to the above description and will not be repeated here.

[0217] After executing step 1, perform control classification. Control classification includes room temperature control and heat pump control.

[0218] If it is room temperature control, proceed to step 5: room temperature collection.

[0219] The room temperature acquisition module in the previous example can be used to complete step 5. For specific details, please refer to the above records and will not be repeated here.

[0220] Step 5: The real-time indoor temperature information is transmitted to the data concentrator, which then transmits the real-time indoor temperature information to the intelligent temperature control valve. The intelligent temperature control valve makes a temperature determination.

[0221] The temperature determination can be completed using the control module of the previous example. For specific details, please refer to the above records and will not be repeated here.

[0222] When the real-time indoor temperature information is less than the preset temperature value, step 81 is executed: increasing the valve opening.

[0223] When the real-time indoor temperature information is greater than or equal to the preset temperature value, step 82 is executed: reducing the valve opening.

[0224] The valve body of the previous example can be used to complete step 81 or step 82. For specific details, please refer to the above records and will not be repeated here.

[0225] If it is heat pump control, go to step 12: start all air source heat pump units.

[0226] The heat pump control module of the previous example can be used to complete step 12. For specific details, please refer to the above records and will not be repeated here.

[0227] The prerequisite for executing step 12 is to execute step 10: confirm the selection of the reference room.

[0228] The reference room is the target room 15. Step 10 may further include inputting basic data of the heat-using end 6, including room information (floor, location) and heating area of the target room 15. Step 10 can be accomplished using the information collection module described above. For details, please refer to the previous description and are not further elaborated here.

[0229] While executing step 12, step 11: collecting the temperature of the reference room may be executed.

[0230] The temperature collector 2 of the previous example can be used to complete step 11. For details, please refer to the above description and will not be repeated here. Data transmission can be achieved between the temperature collector 2 and the data concentrator 3.

[0231] After all air source heat pump units are started up, the operation information of all air source heat pump units is transmitted to the heat pump controller, which then performs temperature determination.

[0232] When the real-time reference temperature value is less than the lower limit value, step 141 is executed: the unit is continued to be turned on.

[0233] When the real-time reference temperature value is greater than or equal to the upper limit value, step 142 is executed: shutting down the units one by one.

[0234] The controller 5 of the previous example can be used to complete step 141 or step 142. For specific details, please refer to the above records and will not be repeated here.

[0235] After step 141t, temperature determination is performed.

[0236] When the real-time reference temperature value is still less than the lower limit value, step 144 is executed: all units are turned on.

[0237] The controller 5 of the previous example can be used to complete step 144. For specific details, please refer to the above records and will not be repeated here.

[0238] When the real-time reference temperature value is greater than the lower limit value and less than or equal to the upper limit value, step 147 is executed: maintaining the existing number of units in operation.

[0239] The controller 5 of the previous example can be used to complete step 147. For specific details, please refer to the above records and will not be repeated here.

[0240] After executing step 147t, execute step 148: the units rotate operation.

[0241] The controller 5 of the previous example can be used to complete step 148. For details, please refer to the above description and will not be repeated here. In addition, step 148 can be directly executed under the control of the control platform 4.

[0242] After executing step 144t, the temperature determination is performed.

[0243] When the real-time reference temperature value is still less than the lower limit value, step 146 is executed: turning on the electric auxiliary heating device.

[0244] The auxiliary heating module 121 of the previous example can be used to complete step 146. For specific details, please refer to the above description and will not be repeated here.

[0245] The embodiment of the present invention further claims protection for a computer-readable storage medium, in which instructions are stored, which, when executed on a computer, enable the computer to execute the operations executed by the control platform 4 or the controller 5 described above.

[0246] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0247] This document uses specific examples to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only intended to help understand the methods and core concepts of the embodiments of the present invention. At the same time, for those skilled in the art, based on the concepts of the embodiments of the present invention, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the embodiments of the present invention.

Claims

1. An air source heat pump heating system, characterized in that: It includes a control system and a heating system for providing heat to a heat-using end; the heat-using end includes at least one room that needs to be heated; The heating system comprises at least: M air source heat pump units, a heat storage tank, and a heat exchanger built into the heat storage tank; M is a positive integer greater than or equal to 2; the heat storage tank is connected to a terminal radiator in the room; The control system includes: Temperature collector, installed in the target room, is used to: Measuring real-time indoor temperature information of the target room; the target room includes: a room that needs to be individually temperature-controlled in the at least one room that needs to be heated; A data concentrator, connected to the temperature collector, for transmitting real-time indoor temperature information of the target room; Control platform for: Determining a real-time reference temperature value of the heat-using end; the real-time reference temperature value is determined based on real-time indoor temperature information of at least one of the target rooms; Different upper and lower limits are set for different time periods; the upper and lower limits are specifically the upper and lower limits of the temperature of the hot water in the water storage tank; The different time periods include: a peak electricity price time period and a valley electricity price time period; the upper limit value in the peak electricity price time period is lower than the upper limit value in the valley electricity price time period; the lower limit value in the peak electricity price time period is lower than the lower limit value in the valley electricity price time period; The real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value specifically: the real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value of the current time period; The real-time reference temperature value of the heat-using end is less than the lower limit value specifically: the real-time reference temperature value of the heat-using end is less than the lower limit value of the current time period; When the real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value, a closing control signal is sent; and when the real-time reference temperature value of the heat-using end is less than the lower limit value, an opening control signal is sent; Controller for: Performing a start-up operation according to the start-up control signal, the start-up operation comprising: controlling m of the air source heat pump units to start running, where m is a positive integer and is less than M; A stop operation is performed according to the shutdown control signal, and the stop operation includes: controlling n of the air source heat pump units to stop running, where n is a positive integer and is less than M.

2. The air source heat pump heating system according to claim 1, characterized in that: The start operation is performed in at least one cycle until the real-time reference temperature value is greater than or equal to the lower limit value of the current time period, or the M air source heat pump units all start to operate; The stopping operation is performed in at least one cycle until the real-time reference temperature value is less than the upper limit value of the current time period, or the M air source heat pump units all stop running.

3. The air source heat pump heating system according to claim 2, characterized in that: The control platform is also used for: If the real-time reference temperature value enters the target range, the current total number of operating air source heat pump units is maintained; the target range includes: less than the upper limit value of the current period and greater than or equal to the lower limit value of the previous period.

4. The air source heat pump heating system according to claim 3, characterized in that: The hot water storage tank also includes: an auxiliary heating module connected to the control platform; The control platform is also used for: During the electricity price valley time period, when preset conditions are met, the auxiliary heating module is controlled to heat the hot water in the water storage tank; wherein the preset conditions include: the M air source heat pump units all start running at time t, and the real-time reference temperature value is less than the lower limit value of the electricity price valley time period.

5. The air source heat pump heating system according to claim 1, characterized in that: The control system further comprises: A temperature control valve is installed at the heating inlet of the target room, and the heat storage tank is connected to the terminal radiator in the target room through the temperature control valve; the temperature control valve corresponds to the temperature collector on a one-to-one basis; The temperature control valve includes a control module and a valve body; The control module is used to: When the real-time indoor temperature information of the target room is greater than or equal to a preset temperature value, controlling the valve body to reduce the opening degree so as to reduce the flow of hot water flowing through the terminal radiator of the target room; When the real-time indoor temperature information of the target room is less than the preset temperature value, the valve body is controlled to increase its opening to increase the flow of hot water flowing through the terminal radiator of the target room.

6. The air source heat pump heating system according to claim 5, characterized in that: The control platform is also used for: When the real-time indoor temperature information of the target room is greater than or equal to the preset temperature value, sending an opening reduction instruction to the control module; When the real-time indoor temperature information of the target room is less than the preset temperature value, sending an opening increase instruction to the control module; The opening reduction instruction is used to instruct the control module to control the valve body to reduce the opening; the opening increase instruction is used to instruct the control module to control the valve body to increase the opening; The preset temperature value is set by the temperature collector or by the control platform.

7. The air source heat pump heating system according to claim 3, characterized in that: In terms of maintaining the current total number of operating air source heat pump units, the controller is specifically used to: Stop the air source heat pump unit with the longest running time, and at the same time, start the air source heat pump unit with the shortest running time.

8. An air source heat pump heating method, characterized in that: Used to control the heating system according to any one of claims 1 to 7; The method comprises: Obtaining real-time indoor temperature information of a target room; the target room is a room that requires separate temperature control at the hot end; Determining a real-time reference temperature value of the heat-using end; the real-time reference temperature value is determined based on real-time indoor temperature information of at least one of the target rooms; Different upper and lower limits are set for different time periods; the upper and lower limits are specifically the upper and lower limits of the temperature of the hot water in the water storage tank; The different time periods include: a peak electricity price time period and a valley electricity price time period; the upper limit value in the peak electricity price time period is lower than the upper limit value in the valley electricity price time period; the lower limit value in the peak electricity price time period is lower than the lower limit value in the valley electricity price time period; The real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value specifically: the real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value of the current time period; The real-time reference temperature value of the heat-using end is less than the lower limit value specifically: the real-time reference temperature value of the heat-using end is less than the lower limit value of the current time period; When the real-time reference temperature value of the heat-using end is greater than or equal to the upper limit value, a closing control signal is sent to the controller; and when the real-time reference temperature value of the heat-using end is less than the lower limit value, an opening control signal is sent to the controller; The start control signal is used to control the controller to perform a start operation, and the start operation includes: controlling m air source heat pump units to start running, where m is a positive integer and is less than M; The shutdown control signal is used to control the controller to perform a stop operation, and the stop operation includes: controlling n of the air source heat pump units to stop running, where n is a positive integer and is less than M.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores instructions, which, when executed on a computer, enable the computer to execute the operations executed by the control platform or controller according to any one of claims 1 to 7.

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