Air conditioning operation control methods, devices, air conditioners and storage media

Abstract

This application relates to an air conditioning operation control method, device, air conditioner, and storage medium. The method includes: acquiring the outdoor ambient temperature value of the outdoor unit of the air conditioner; determining the initial system pressure value for air conditioning operation based on the outdoor ambient temperature value; determining the system pressure change rate of the air conditioner during the process of controlling the air conditioner operation based on the initial system pressure value; adjusting the compressor frequency of the air conditioner operation based on the system pressure change rate; and controlling the compressor of the air conditioner to operate at the adjusted compressor frequency. This can improve the comfort of air conditioners without communication capabilities and enhance the user experience.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an air conditioning operation control method, device, air conditioner and storage medium. Background Technology

[0002] Currently, in the air conditioning industry, there is a type of air conditioner without communication. The indoor and outdoor units of the unit do not communicate with each other. That is, the indoor unit cannot control the start and stop of the outdoor unit through the main board, but can only control the unit frequency through a set pressure value.

[0003] In existing technologies, to ensure the comfort of users with air conditioners that lack communication capabilities, frequent on / off cycles or pressure control are typically used to adjust the comfort level. However, the former, by frequently turning the air conditioner on and off, provides a very poor user experience, while the latter, although determining the specific system pressure control value based on the outdoor unit temperature, cannot determine the specific cooling and humidity load requirements during air conditioner operation, resulting in a lack of significant comfort for users. Summary of the Invention

[0004] This application provides an air conditioning operation control method, device, air conditioner, and storage medium to solve the problem that in the prior art, in order to ensure the comfort of users in the aforementioned non-communication air conditioners, frequent start-stop operations or low-pressure control are typically used to adjust the comfort level of the air conditioner. However, the former, by frequently starting and stopping the air conditioner to adjust the comfort level, results in a very poor user experience, while the latter, although determining the specific low-pressure control value based on the outdoor unit temperature, cannot determine the specific cooling and humidity load requirements during the air conditioner's operation, thus leading to a technical problem where the comfort effect for users is not significant.

[0005] In a first aspect, this application provides an air conditioning operation control method, the method including obtaining the outdoor ambient temperature value where the outdoor unit of the air conditioner is located;

[0006] Based on the outdoor ambient temperature value, determine the initial system pressure value for air conditioning operation;

[0007] During the process of controlling the operation of the air conditioner based on the initial system pressure value, the system pressure change rate of the air conditioner is determined;

[0008] The compressor frequency of the air conditioner is adjusted according to the system pressure change rate.

[0009] The air conditioner compressor is controlled to operate at the adjusted compressor frequency.

[0010] As one possible implementation, determining the initial system pressure value for air conditioning operation based on the outdoor ambient temperature value includes:

[0011] Determine the operating mode of the air conditioner;

[0012] When the air conditioner is determined to be in cooling mode, a first system pressure value is determined based on the outdoor ambient temperature value; the first system pressure value is set as the initial system pressure value for the air conditioner, and the first system pressure value is less than a preset pressure threshold.

[0013] When the air conditioner is determined to be in heating mode, a second system pressure value is determined based on the outdoor ambient temperature value; the second system pressure value is determined as the initial system pressure value for the air conditioner, and the second system pressure value is greater than or equal to the pressure value threshold.

[0014] As one possible implementation, controlling the air conditioner operation based on the initial system pressure value includes:

[0015] Based on the initial system pressure value, determine the predicted target temperature value for the air conditioner operation;

[0016] Determine the temperature difference between the predicted target temperature value and the actual target temperature value of the air conditioner;

[0017] The initial compressor frequency for the air conditioner is determined based on the initial system pressure value and the temperature difference value.

[0018] The compressor of the air conditioner is controlled to operate at the initial compressor frequency.

[0019] As one possible implementation, determining the system pressure change rate of the air conditioner includes:

[0020] Determine the time interval corresponding to each preset change in the system pressure value of the air conditioner;

[0021] The change time is defined as the system pressure change rate of the air conditioner.

[0022] As one possible implementation, adjusting the compressor frequency of the air conditioner based on the system pressure change rate includes:

[0023] Determine whether the system pressure change rate is less than or equal to a preset first time threshold;

[0024] If it is determined that the system pressure change rate is less than or equal to the first time threshold, then the current compressor frequency of the air conditioner is kept unchanged;

[0025] If it is determined that the system pressure change rate is greater than the first time threshold, then it is determined whether the system pressure change rate is greater than the preset second time threshold.

[0026] If the system pressure change rate is determined to be greater than the second time threshold, return to the step of obtaining the outdoor ambient temperature value where the outdoor unit of the air conditioner is located.

[0027] If the system pressure change rate is determined to be less than or equal to the second time threshold, the target change rate range to which the system pressure change rate belongs is determined;

[0028] Based on the preset correspondence between the rate of change range and the frequency adjustment value, the target frequency adjustment value corresponding to the target rate of change range is determined, wherein the system pressure change rate is proportional to the frequency adjustment value;

[0029] Adjust the compressor frequency of the air conditioner according to the target frequency adjustment value.

[0030] As one possible implementation, controlling the compressor of the air conditioner to operate at the adjusted compressor frequency includes:

[0031] The compressor of the air conditioner is controlled to run at the adjusted compressor frequency for a preset time period;

[0032] Determine whether the indoor temperature value corresponding to the air conditioner has reached the preset target temperature value;

[0033] If it is determined that the indoor temperature value has reached the target temperature value, then the compressor of the air conditioner is controlled to maintain the current compressor frequency.

[0034] If it is determined that the indoor temperature value of the air conditioner has not yet reached the target temperature value, then return to the step of determining the system pressure change rate of the air conditioner.

[0035] As one possible implementation, before controlling the air conditioner operation based on the initial system pressure value, the following steps are also included:

[0036] Determine the operating mode of the air conditioner;

[0037] If the air conditioner is determined to be in cooling mode, determine whether a first historical pressure value exists in the preset storage area, wherein the first historical pressure value is the pressure at which the compressor stops running when the air conditioner is in cooling mode; if the storage area is determined to have the first historical pressure value, determine the first historical pressure value as the initial system pressure value for the air conditioner to operate, and execute the step of controlling the operation of the air conditioner based on the initial system pressure value.

[0038] If the air conditioner is determined to be in heating mode, determine whether a second historical pressure value exists in the preset storage area, wherein the second historical pressure value is the pressure at which the compressor stops running when the air conditioner is in heating mode; if the storage area is determined to have the second historical pressure value, determine the second historical pressure value as the initial system pressure value for the operation of the air conditioner, and execute the step of controlling the operation of the air conditioner based on the initial system pressure value.

[0039] Secondly, embodiments of this application provide an air conditioning operation control device, the device comprising:

[0040] The acquisition module is used to acquire the outdoor ambient temperature value where the outdoor unit of the air conditioner is located;

[0041] The first determining module is used to determine the initial system pressure value for air conditioning operation based on the outdoor ambient temperature value.

[0042] The second determining module is used to determine the system pressure change rate of the air conditioner during the process of controlling the operation of the air conditioner based on the initial system pressure value;

[0043] The adjustment module is used to adjust the compressor frequency of the air conditioner according to the system pressure change rate;

[0044] The control module is used to control the compressor of the air conditioner to operate at the adjusted compressor frequency.

[0045] As one possible implementation, the first determining module is specifically used for:

[0046] Determine the operating mode of the air conditioner;

[0047] When the air conditioner is determined to be in cooling mode, a first system pressure value is determined based on the outdoor ambient temperature value; the first system pressure value is set as the initial system pressure value for the air conditioner, and the first system pressure value is less than a preset pressure threshold.

[0048] When the air conditioner is determined to be in heating mode, a second system pressure value is determined based on the outdoor ambient temperature value; the second system pressure value is determined as the initial system pressure value for the air conditioner, and the second system pressure value is greater than or equal to the pressure value threshold.

[0049] As one possible implementation, the second determining module is specifically used for:

[0050] Based on the initial system pressure value, determine the predicted target temperature value for the air conditioner operation;

[0051] Determine the temperature difference between the predicted target temperature value and the actual target temperature value of the air conditioner;

[0052] The initial compressor frequency for the air conditioner is determined based on the initial system pressure value and the temperature difference value.

[0053] The compressor of the air conditioner is controlled to operate at the initial compressor frequency.

[0054] As one possible implementation, the second determining module includes:

[0055] The first determining submodule is used to determine the change time corresponding to each preset value change in the system pressure value of the air conditioner;

[0056] The second determining submodule is used to determine the change time as the system pressure change rate of the air conditioner.

[0057] As one possible implementation, the adjustment module is specifically used for:

[0058] Determine whether the system pressure change rate is less than or equal to a preset first time threshold;

[0059] If it is determined that the system pressure change rate is less than or equal to the first time threshold, then the current compressor frequency of the air conditioner is kept unchanged;

[0060] If it is determined that the system pressure change rate is greater than the first time threshold, then it is determined whether the system pressure change rate is greater than the preset second time threshold.

[0061] If the system pressure change rate is determined to be greater than the second time threshold, return to the step of obtaining the outdoor ambient temperature value where the outdoor unit of the air conditioner is located.

[0062] If the system pressure change rate is determined to be less than or equal to the second time threshold, the target change rate range to which the system pressure change rate belongs is determined;

[0063] Based on the preset correspondence between the rate of change range and the frequency adjustment value, the target frequency adjustment value corresponding to the target rate of change range is determined, wherein the system pressure change rate is proportional to the frequency adjustment value;

[0064] Adjust the compressor frequency of the air conditioner according to the target frequency adjustment value.

[0065] As one possible implementation, the control module is specifically used for:

[0066] The compressor of the air conditioner is controlled to run at the adjusted compressor frequency for a preset time period;

[0067] Determine whether the indoor temperature value corresponding to the air conditioner has reached the preset target temperature value;

[0068] If it is determined that the indoor temperature value has reached the target temperature value, then the compressor of the air conditioner is controlled to maintain the current compressor frequency.

[0069] If it is determined that the indoor temperature value of the air conditioner has not yet reached the target temperature value, then return to the step of determining the system pressure change rate of the air conditioner.

[0070] As one possible implementation, the device further includes:

[0071] The third determining module is used to determine the operating mode of the air conditioner before controlling the operation of the air conditioner based on the initial system pressure value;

[0072] The fourth determining module is used to determine whether a first historical pressure value exists in a preset storage area when the air conditioner's operating mode is determined to be cooling mode, wherein the first historical pressure value is the pressure at which the compressor stops running when the air conditioner is in cooling mode; and if the storage area is determined to have the first historical pressure value, the first historical pressure value is determined as the initial system pressure value for the air conditioner's operation, and the step of controlling the air conditioner's operation based on the initial system pressure value is executed.

[0073] The fifth determining module is used to determine whether a second historical pressure value exists in a preset storage area when the air conditioner's operating mode is determined to be heating mode, wherein the second historical pressure value is the pressure at which the compressor stops running when the air conditioner is in heating mode; and if the storage area is determined to have the second historical pressure value, the second historical pressure value is determined as the initial system pressure value for the air conditioner's operation, and the step of controlling the air conditioner's operation based on the initial system pressure value is executed.

[0074] Thirdly, embodiments of this application provide an air conditioner, including: a processor and a memory, wherein the processor is used to execute an air conditioner operation control program stored in the memory to implement the air conditioner operation control method described in any one of the first aspects.

[0075] Fourthly, embodiments of this application provide a storage medium storing one or more programs, which can be executed by one or more processors to implement the air conditioning operation control method described in any one aspect.

[0076] The technical solution provided in this application obtains the outdoor ambient temperature value of the air conditioner's outdoor unit, determines the initial system pressure value for air conditioner operation based on this outdoor ambient temperature value, determines the system pressure change rate of the air conditioner during the process of controlling the air conditioner operation based on the initial system pressure value, and adjusts the compressor frequency of the air conditioner operation according to the system pressure change rate, controlling the air conditioner compressor to operate at the adjusted compressor frequency. This technical solution, by collecting outdoor ambient temperature values ​​to determine the initial system pressure value of the air conditioner, and based on the initial system pressure value, collecting the system pressure change rate to determine the system load demand, solves the problems of difficulty in achieving comfort targets and poor user experience for air conditioning units, thereby improving the comfort of air conditioners without communication capabilities and enhancing the user experience. Attached Figure Description

[0077] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0078] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0079] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0080] Figure 1 This is a schematic diagram of a communication-free air conditioning system provided in an embodiment of this application;

[0081] Figure 2 A flowchart illustrating an embodiment of an air conditioning operation control method provided in this application;

[0082] Figure 3 A flowchart illustrating another embodiment of the air conditioning operation control method provided in this application;

[0083] Figure 4 A block diagram illustrating an embodiment of an air conditioning operation control device provided in this application;

[0084] Figure 5 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this application. Detailed Implementation

[0085] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0086] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0087] To address the shortcomings of existing technologies that rely on frequent on / off cycles or low-pressure control to adjust user comfort in air-conditioning systems without communication capabilities, this application provides an air conditioning operation control method, device, air conditioner, and storage medium. This method determines the initial system pressure value by collecting outdoor ambient temperature data and, based on that initial pressure value, determines the system load demand by collecting the system pressure change rate. This solves the problems of achieving high comfort targets and poor user experience in air conditioning units, thereby improving the comfort of air-conditioning systems without communication capabilities and enhancing the user experience.

[0088] To facilitate understanding of the air conditioning operation control method provided in the embodiments of this application, the following will first describe the non-communication air conditioner involved in the embodiments of this application.

[0089] See Figure 1 This is a schematic diagram of a communication-free air conditioning system provided in an embodiment of this application. Figure 1 As shown, the air conditioner may include an indoor side component and an outdoor side component.

[0090] The outdoor components may include: compressor 01, four-way valve 02, condenser 03, and electronic expansion valve 04.

[0091] The aforementioned indoor-side components may include: a thermal expansion valve 05 and an evaporator 06.

[0092] The compressor 01 mentioned above can be used to drive the air conditioner.

[0093] The aforementioned condenser 03 cools the high-temperature, high-pressure refrigerant superheated vapor discharged from the compressor 01 into a liquid or a gas-liquid mixture. The aforementioned condenser 03 can be a water-cooled condenser, an air-cooled condenser, or a water-and-air mixed-cooling condenser; the embodiments of this application do not impose any limitations on this.

[0094] The aforementioned electronic expansion valve 04 and thermal expansion valve 05 can be used to reduce the pressure and throttle the refrigerant.

[0095] The aforementioned evaporator 06 utilizes the fact that a liquid cryogenic refrigerant easily evaporates under low pressure, transforming into vapor and absorbing heat from the cooled medium, thereby achieving the purpose of refrigeration. The cooling medium used in the aforementioned evaporator 06 can be a cooling liquid refrigerant, or it can be air or other gases; this application embodiment does not impose any limitations on this.

[0096] Furthermore, the compressor 01 can be connected to the condenser 03 and the evaporator 06 via a four-way valve 02. Specifically, the output end of the compressor 01 can be connected to the input end of the condenser 03 to input the generated high-temperature, high-pressure refrigerant into the condenser 03 for condensation.

[0097] The output of the condenser 03 can be connected to the input of the electronic expansion valve 04, the output of the electronic expansion valve 04 can be connected to the input of the thermal expansion valve 05, and the output of the thermal expansion valve 05 can be connected to the input of the evaporator 06. Therefore, the condenser 03 can input the condensed liquid or gas-liquid mixture refrigerant into the evaporator 06 through the electronic expansion valve 04 and the thermal expansion valve 05.

[0098] The output end of the evaporator 06 can be connected to the input end of the compressor 01 to re-input the gaseous refrigerant converted by the evaporator 06 into the compressor 01, thereby realizing the reuse of the refrigerant.

[0099] In practical applications, Figure 1 The air conditioner shown is a non-communication unit. Because the indoor and outdoor units of the air conditioning unit do not communicate, the indoor unit cannot control the start and stop of the outdoor unit through the main board. It can only control the operating frequency of the compressor through the setpoint system pressure value.

[0100] In existing technologies, to ensure user comfort when using air conditioners without communication capabilities, frequent on / off cycles or pressure control are typically employed to adjust the comfort level. However, the former, by frequently switching on and off, provides a very poor user experience, while the latter, although determining the specific system pressure control value based on the outdoor unit temperature, cannot determine the specific cooling and humidity load requirements during air conditioner operation, resulting in a lack of significant comfort for the user.

[0101] In response, this application provides an air conditioning operation control method that can determine the initial system pressure value of the air conditioner by collecting outdoor ambient temperature values, and determine the system load demand by collecting the system pressure change rate based on the initial system pressure value, thereby solving the problems of difficulty in achieving comfort targets and poor user experience of air conditioning units.

[0102] The air conditioning operation control method provided in this application will be further explained and described below with reference to the accompanying drawings and specific embodiments. The embodiments do not constitute a limitation on the embodiments of the present invention.

[0103] See Figure 2 This is a flowchart of an embodiment of an air conditioning operation control method provided in this application. Figure 2 The process shown can be applied to air conditioners, for example. Figure 1 The air conditioning system shown. (As shown) Figure 2 As shown, the process may include the following steps:

[0104] Step 201: Obtain the outdoor ambient temperature value of the outdoor unit of the air conditioner.

[0105] The aforementioned outdoor unit of an air conditioner can be an outdoor air conditioning component in an air conditioning system, and it can be a compressor, for example... Figure 1 The compressor 01 shown.

[0106] The outdoor ambient temperature value mentioned above refers to the temperature of the outdoor environment where the air conditioner's outdoor unit is located.

[0107] In one embodiment, the executing entity of this application embodiment can detect the outdoor ambient temperature through the outdoor ambient temperature sensor of the unit and obtain the outdoor ambient temperature value detected by the outdoor ambient temperature sensor.

[0108] In another embodiment, the executing entity of this application embodiment can obtain the current weather conditions through the network and determine the outdoor ambient temperature value of the air conditioner outdoor unit from the aforementioned weather conditions.

[0109] In another embodiment, the user can input the outdoor ambient temperature value of the current outdoor environment where the air conditioner's outdoor unit is located through the air conditioner's visual interface. Based on this, the implementing entity of this application embodiment can obtain the outdoor ambient temperature value of the air conditioner's outdoor unit through this visual interface.

[0110] Step 202: Determine the initial system pressure value for air conditioning operation based on the outdoor ambient temperature value mentioned above.

[0111] The initial system pressure value mentioned above refers to the system pressure value at which the air conditioning system is operating. In actual applications, the air conditioner can correspond to a system pressure value during operation and operate based on that system pressure value.

[0112] In one embodiment, since the indoor and outdoor units of a non-communication air conditioner cannot communicate, the start / stop status and operating frequency of the outdoor unit cannot be obtained from the indoor unit with corresponding control commands. Based on this, the executing entity in this embodiment can determine the initial system pressure value for air conditioner operation based on the outdoor ambient temperature where the outdoor unit is located, and control the operation of the air conditioner according to this initial system pressure value.

[0113] As an exemplary implementation, the executing entity of this application embodiment can determine the operating mode of the air conditioner and determine the initial system pressure value corresponding to the air conditioner based on the operating mode of the air conditioner.

[0114] Optionally, if the air conditioner's operating mode is determined to be cooling mode, the system pressure value for air conditioner operation (hereinafter referred to as the first system pressure value for ease of description) can be determined based on the outdoor ambient temperature value, and this first system pressure value can be set as the initial system pressure value for air conditioner operation. Since the air conditioner's operating mode is cooling mode, this first system pressure value can be the system low pressure, meaning that the aforementioned first system pressure value is less than a preset pressure threshold.

[0115] Conversely, if the air conditioner's operating mode is determined to be heating mode, the system pressure value for air conditioner operation (hereinafter referred to as the second system pressure value for ease of description) can be determined based on the outdoor ambient temperature value, and this second system pressure value is set as the initial system pressure value for air conditioner operation. Since the air conditioner's operating mode is heating mode, this second system pressure value can be a system high pressure, meaning that the aforementioned second system pressure value is greater than or equal to a preset pressure threshold.

[0116] Furthermore, the execution subject of this application embodiment can be determined based on the PID (Proportion Integration Differentiation) capability of the air conditioner outdoor unit control logic regarding the target system pressure.

[0117] Step 203: During the process of controlling the operation of the air conditioner based on the initial system pressure value, determine the system pressure change rate of the air conditioner.

[0118] The aforementioned system pressure change rate refers to the change time corresponding to the preset value of system pressure change. Since there is a corresponding relationship between the system pressure value and the corresponding system temperature value, when the air conditioner is in cooling mode, the system pressure change rate can be the time required for the system pressure to decrease by 1°C; when the air conditioner is in heating mode, the system pressure change rate can be the time required for the system pressure to increase by 1°C.

[0119] In this embodiment of the application, after determining the initial system pressure value of the air conditioner, the operation of the air conditioner can be controlled according to the initial system pressure value.

[0120] As an exemplary implementation, the entity executing this application embodiment can determine the predicted target temperature value for air conditioning operation based on the aforementioned initial system pressure value. Here, the predicted target temperature value refers to the predicted indoor temperature value that the air conditioner can achieve, derived from the initial system pressure value.

[0121] Then, the actual target temperature value set by the user can be obtained, and the temperature difference between the predicted target temperature value and the actual target temperature value of the air conditioner can be determined.

[0122] Then, based on the initial system pressure and temperature difference values ​​mentioned above, the initial compressor frequency for air conditioning operation can be determined, and the air conditioning compressor can be controlled to operate at that initial compressor frequency.

[0123] As an exemplary implementation, the air conditioner can pre-store the correspondence between system pressure values ​​and compressor frequencies. Based on this, the execution subject of this application embodiment can determine the first compressor frequency corresponding to the initial system pressure value according to the correspondence between the system pressure value and the compressor frequency.

[0124] Subsequently, since there is a temperature difference between the predicted target temperature value reached by the initial system pressure value and the actual target temperature value set by the user, the execution subject of this application embodiment can adjust the frequency of the first compressor according to the temperature difference to obtain the initial compressor frequency.

[0125] Specifically, the frequency of the first compressor can be adjusted according to the current operating mode of the air conditioner and the temperature difference mentioned above.

[0126] Optionally, when the air conditioner is in cooling mode, if the temperature difference is positive, it means that the air conditioner cannot reach the actual target temperature value when running at the first compressor frequency. Therefore, the first compressor frequency can be added to a preset value to obtain the corresponding initial compressor frequency. If the temperature difference is negative, it means that the air conditioner can reach the actual target temperature value when running at the first compressor frequency. Therefore, in order to save electricity, the first compressor frequency can be reduced by a preset value to obtain the corresponding initial compressor frequency.

[0127] Conversely, when the air conditioner is in heating mode, if the temperature difference is positive, it means that the air conditioner can reach the actual target temperature value when operating at the first compressor frequency. Therefore, in order to save electricity, the first compressor frequency can be reduced by a preset value to obtain the corresponding initial compressor frequency. If the temperature difference is negative, it means that the air conditioner cannot reach the actual target temperature value when operating at the first compressor frequency. Therefore, the first compressor frequency can be added to a preset value to obtain the corresponding initial compressor frequency.

[0128] In one embodiment, the executing entity of this application embodiment can determine the system pressure change rate of the air conditioner within a preset time period during the process of the air conditioner operating at an initial system pressure value.

[0129] As an exemplary implementation, the time interval corresponding to each change in the system pressure value of the air conditioner by a preset value can be determined, and this time interval can be defined as the system pressure change rate of the air conditioner. For example, the system pressure change rate of the air conditioner can be determined by the following formula (a):

[0130] A = dΔtd(1℃)

[0131] Where A is the system pressure change rate, d is the slope of the integral, and Δt is the calculus of time.

[0132] Step 204: Adjust the compressor frequency of the air conditioner according to the above system pressure change rate.

[0133] In practical applications, the aforementioned system pressure change rate can be used to determine the size of the air conditioning load demand. For example, a high low-pressure change rate indicates a large indoor load, making it difficult to lower the indoor ambient temperature. In this case, the compressor frequency can be increased to achieve the actual target temperature value. Conversely, a low low-pressure change rate indicates a small indoor load, making it easier to lower the inner ring temperature. In this case, the compressor frequency can be further reduced to achieve the actual target temperature value.

[0134] In this embodiment of the application, the executing entity can adjust the compressor frequency of the air conditioner according to the system pressure change rate of the air conditioner.

[0135] As an exemplary implementation, the executing entity of this application embodiment can adjust the compressor frequency of the air conditioner according to the range of the system pressure change rate.

[0136] Specifically, as described above, the system pressure change rate can be defined as the time interval corresponding to each preset change in system pressure. Therefore, it can be first determined whether the system pressure change rate is less than or equal to a preset first time threshold. Optionally, if the system pressure change rate is determined to be less than or equal to the first time threshold, it indicates that the indoor load is low and the indoor ambient temperature can easily decrease. Therefore, the current compressor frequency of the air conditioner can be kept constant. Here, the first time threshold is a relatively small time threshold, such as 3 minutes.

[0137] Conversely, if it is determined that the system pressure change rate is greater than the first time threshold mentioned above, it can be further determined whether the system pressure change rate is greater than the preset second time threshold. Here, the second time threshold is a larger time threshold, such as 15 minutes.

[0138] Optionally, if the system pressure change rate is determined to be greater than the second time threshold mentioned above, it indicates that the indoor load is very large at this time, and it is difficult to reduce the indoor ambient temperature. Therefore, it is advisable to re-determine the initial system pressure value. That is, return to the above steps of obtaining the outdoor ambient temperature value of the outdoor unit of the air conditioner, and then re-determine the initial system pressure value based on the outdoor ambient temperature value.

[0139] Conversely, if the system pressure change rate is determined to be less than or equal to the second time threshold, the target change rate range to which the system pressure change rate belongs can be further determined. Then, based on the preset correspondence between the change rate range and the frequency adjustment value, the target frequency adjustment value corresponding to the target change rate range can be determined. As can be seen from the above relationship between the pressure change rate and the indoor load, the system pressure change rate is directly proportional to the frequency adjustment value. The correspondence between the above change rate range and the frequency adjustment value is shown in Table 1 below:

[0140] Table 1

[0141] maintain 0<dΔt / d(1℃)≤3 +4 3<dΔt / d(1℃)≤6 +8 6<dΔt / d(1℃)≤10 +10 10<dΔt / d(1℃)≤15

[0142] Afterwards, the compressor frequency of the air conditioner can be adjusted according to the target frequency adjustment value mentioned above.

[0143] Step 205: Control the air conditioner compressor to run at the adjusted compressor frequency.

[0144] In this embodiment of the application, in order to ensure the comfort brought to the user by the air conditioner, the executing entity of this embodiment can first control the air conditioner compressor to run at the adjusted compressor frequency for a preset time period before controlling the air conditioner compressor to run at the adjusted compressor frequency.

[0145] Then, it can be determined whether the indoor temperature value corresponding to the air conditioner has reached the preset target temperature value.

[0146] Optionally, if it is determined that the current indoor temperature value has reached the above-mentioned target temperature value, the air conditioner compressor is controlled to maintain the current compressor frequency, which can be the compressor frequency adjusted above.

[0147] Conversely, if it is determined that the indoor temperature value of the air conditioner has not reached the target temperature value, the process returns to the step of determining the system pressure change rate of the air conditioner, thereby readjusting the compressor frequency of the air conditioner.

[0148] In addition, if the air conditioner unit stops due to a drop in the system pressure value during the operation of the air conditioner according to the initial system pressure value, the system pressure value can be memorized and stored in a preset storage area so that the air conditioner can be fuzzy controlled around the system pressure value in the future.

[0149] Based on this, before controlling the operation of the air conditioner according to the initial system pressure value, the executing entity of this application embodiment can determine whether there is a historical system pressure value in the preset storage area, and if so, use the historical system pressure value as the initial system pressure value and control the operation of the air conditioner according to the initial system pressure value.

[0150] Specifically, the operating mode of the air conditioner can be determined, and if the operating mode of the air conditioner is determined to be cooling mode, it can be determined whether there is a first historical pressure value in the preset storage area. The first historical pressure value is the pressure value at which the compressor stops running when the air conditioner is in cooling mode. That is, when the system pressure value is the first historical pressure value in cooling mode, the air conditioner can reach the target temperature value set by the user.

[0151] Optionally, if it is determined that a first historical pressure value exists in the storage area, the first historical pressure value is determined as the initial system pressure value for the operation of the air conditioner, and the operation of the air conditioner is controlled according to the initial system pressure value.

[0152] Optionally, when the air conditioner is determined to be in heating mode, it can be determined whether there is a second historical pressure value in the preset storage area. The second historical pressure value is the pressure value at which the compressor stops running when the air conditioner is in heating mode. That is, when the system pressure value is the second historical pressure value in heating mode, the air conditioner can reach the target temperature value set by the user.

[0153] Optionally, if it is determined that the second historical pressure value exists in the storage area, the second historical pressure value can be determined as the initial system pressure value, and the air conditioner can be controlled to operate based on the initial system pressure value.

[0154] The technical solution provided in this application obtains the outdoor ambient temperature value of the air conditioner's outdoor unit, determines the initial system pressure value for air conditioner operation based on this outdoor ambient temperature value, determines the system pressure change rate of the air conditioner during the process of controlling the air conditioner operation based on the initial system pressure value, and adjusts the compressor frequency of the air conditioner operation according to the system pressure change rate, controlling the air conditioner compressor to operate at the adjusted compressor frequency. This technical solution, by collecting outdoor ambient temperature values ​​to determine the initial system pressure value of the air conditioner, and based on the initial system pressure value, collecting the system pressure change rate to determine the system load demand, solves the problems of difficulty in achieving comfort targets and poor user experience for air conditioning units, thereby improving the comfort of air conditioners without communication capabilities and enhancing the user experience.

[0155] See Figure 3 This is a flowchart of another embodiment of the air conditioning operation control method provided in this application. Figure 3 The process shown is in Figure 2Based on the illustrated process, the specific method for adjusting the air conditioner compressor frequency is described. For example... Figure 3 As shown, the process may include the following:

[0156] First, after receiving the start / stop signal, the air conditioner can set an initial low pressure P0 based on the outdoor ambient temperature.

[0157] Then, the target set temperature T0 can be calculated from the initial low pressure P0. Then, the temperature is controlled by the temperature difference ΔT0 between the initial low pressure, the target set temperature and the actual set temperature. After running for a certain period of time, it is judged whether the pressure drops and the low pressure change rate A (how long it takes for the system low pressure to drop by 1℃) is calculated.

[0158] Next, the comfort level can be assessed by inferring whether the indoor ambient temperature has dropped through the trend of the low pressure change rate A: a high low pressure change rate indicates a large indoor load and difficulty in reducing the inner ring temperature. The low pressure can be reduced by increasing the compressor frequency. If the unit stops after the low pressure drops during cooling operation, the low pressure value can be memorized and fuzzy control can be performed around this low pressure value in the future.

[0159] A low low-pressure change rate indicates a small indoor load, making it easier for the inner ring temperature to decrease. Therefore, the compressor frequency can be further reduced to reach the target temperature.

[0160] Furthermore, the calculated low-pressure change rate A determines the unit's operating frequency. If the change rate A is less than 3 minutes, the compressor frequency remains constant; if the change rate A is less than 6 minutes, the compressor frequency increases by 4 Hz. Specific compressor frequency adjustments can be found in Table 1 above, and will not be elaborated further here.

[0161] Finally, after adjusting the unit's operating frequency, it is determined whether the preset target temperature value has been reached. If so, the current operating state is maintained; otherwise, a new round of low-pressure change rate determination is performed until the target value is met.

[0162] The technical solution provided in this application, based on existing low-voltage control of units without communication, solves the problems of difficult achievement of unit comfort targets and poor user experience by using initial low-voltage fuzzy control and then determining the load demand through the low-voltage change rate. It achieves temperature control by adjusting the unit's operating frequency, thus providing a comfort adjustment effect.

[0163] See Figure 4 This is a block diagram illustrating an embodiment of an air conditioning operation control device provided in this application. Figure 4 As shown, the device may include:

[0164] Module 41 is used to obtain the outdoor ambient temperature value where the outdoor unit of the air conditioner is located;

[0165] The first determining module 42 is used to determine the initial system pressure value for air conditioning operation based on the outdoor ambient temperature value;

[0166] The second determining module 43 is used to determine the system pressure change rate of the air conditioner during the process of controlling the operation of the air conditioner according to the initial system pressure value;

[0167] The adjustment module 44 is used to adjust the compressor frequency of the air conditioner according to the system pressure change rate;

[0168] The control module 45 is used to control the compressor of the air conditioner to operate at the adjusted compressor frequency.

[0169] As one possible implementation, the first determining module 42 is specifically used for:

[0170] Determine the operating mode of the air conditioner;

[0171] When the air conditioner is determined to be in cooling mode, a first system pressure value is determined based on the outdoor ambient temperature value; the first system pressure value is set as the initial system pressure value for the air conditioner, and the first system pressure value is less than a preset pressure threshold.

[0172] When the air conditioner is determined to be in heating mode, a second system pressure value is determined based on the outdoor ambient temperature value; the second system pressure value is determined as the initial system pressure value for the air conditioner, and the second system pressure value is greater than or equal to the pressure value threshold.

[0173] As one possible implementation, the second determining module 43 is specifically used for:

[0174] Based on the initial system pressure value, determine the predicted target temperature value for the air conditioner operation;

[0175] Determine the temperature difference between the predicted target temperature value and the actual target temperature value of the air conditioner;

[0176] The initial compressor frequency for the air conditioner is determined based on the initial system pressure value and the temperature difference value.

[0177] The compressor of the air conditioner is controlled to operate at the initial compressor frequency.

[0178] As one possible implementation, the second determining module 43 includes:

[0179] The first determining submodule is used to determine the change time corresponding to each preset value change in the system pressure value of the air conditioner;

[0180] The second determining submodule is used to determine the change time as the system pressure change rate of the air conditioner.

[0181] As one possible implementation, the adjustment module 44 is specifically used for:

[0182] Determine whether the system pressure change rate is less than or equal to a preset first time threshold;

[0183] If it is determined that the system pressure change rate is less than or equal to the first time threshold, then the current compressor frequency of the air conditioner is kept unchanged;

[0184] If it is determined that the system pressure change rate is greater than the first time threshold, then it is determined whether the system pressure change rate is greater than the preset second time threshold.

[0185] If the system pressure change rate is determined to be greater than the second time threshold, return to the step of obtaining the outdoor ambient temperature value where the outdoor unit of the air conditioner is located.

[0186] If the system pressure change rate is determined to be less than or equal to the second time threshold, the target change rate range to which the system pressure change rate belongs is determined;

[0187] Based on the preset correspondence between the rate of change range and the frequency adjustment value, the target frequency adjustment value corresponding to the target rate of change range is determined, wherein the system pressure change rate is proportional to the frequency adjustment value;

[0188] Adjust the compressor frequency of the air conditioner according to the target frequency adjustment value.

[0189] As one possible implementation, the control module 45 is specifically used for:

[0190] The compressor of the air conditioner is controlled to run at the adjusted compressor frequency for a preset time period;

[0191] Determine whether the indoor temperature value corresponding to the air conditioner has reached the preset target temperature value;

[0192] If it is determined that the indoor temperature value has reached the target temperature value, then the compressor of the air conditioner is controlled to maintain the current compressor frequency.

[0193] If it is determined that the indoor temperature value of the air conditioner has not yet reached the target temperature value, then return to the step of determining the system pressure change rate of the air conditioner.

[0194] As one possible implementation, the device further includes (not shown in the figure):

[0195] The third determining module is used to determine the operating mode of the air conditioner before controlling the operation of the air conditioner based on the initial system pressure value;

[0196] The fourth determining module is used to determine whether a first historical pressure value exists in a preset storage area when the air conditioner's operating mode is determined to be cooling mode, wherein the first historical pressure value is the pressure at which the compressor stops running when the air conditioner is in cooling mode; and if the storage area is determined to have the first historical pressure value, the first historical pressure value is determined as the initial system pressure value for the air conditioner's operation, and the step of controlling the air conditioner's operation based on the initial system pressure value is executed.

[0197] The fifth determining module is used to determine whether a second historical pressure value exists in a preset storage area when the air conditioner's operating mode is determined to be heating mode, wherein the second historical pressure value is the pressure at which the compressor stops running when the air conditioner is in heating mode; and if the storage area is determined to have the second historical pressure value, the second historical pressure value is determined as the initial system pressure value for the air conditioner's operation, and the step of controlling the air conditioner's operation based on the initial system pressure value is executed.

[0198] like Figure 5 As shown in the diagram, this application provides a schematic diagram of an air conditioner, including a processor 51, a communication interface 52, a memory 53, and a communication bus 54. The processor 51, communication interface 52, and memory 53 communicate with each other via the communication bus 54.

[0199] Memory 53 is used to store computer programs;

[0200] In one embodiment of this application, when the processor 51 executes the program stored in the memory 53, it implements the air conditioning operation control method provided in any of the foregoing method embodiments, including:

[0201] Obtain the outdoor ambient temperature value where the air conditioner's outdoor unit is located;

[0202] Based on the outdoor ambient temperature value, determine the initial system pressure value for air conditioning operation;

[0203] During the process of controlling the operation of the air conditioner based on the initial system pressure value, the system pressure change rate of the air conditioner is determined;

[0204] The compressor frequency of the air conditioner is adjusted according to the system pressure change rate.

[0205] The air conditioner compressor is controlled to operate at the adjusted compressor frequency.

[0206] This application also provides a storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the air conditioning operation control method provided in any of the foregoing method embodiments.

[0207] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0208] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented using software plus a general-purpose hardware platform, or of course, using hardware. Based on this understanding, the above technical solutions, in essence or the parts that contribute to the related technology, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0209] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0210] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An air conditioning operation control method, characterized in that, The method includes: Obtain the outdoor ambient temperature value where the air conditioner's outdoor unit is located; Based on the outdoor ambient temperature value, determine the initial system pressure value for air conditioning operation; During the process of controlling the operation of the air conditioner based on the initial system pressure value, the system pressure change rate of the air conditioner is determined; The compressor frequency of the air conditioner is adjusted according to the system pressure change rate. The compressor of the air conditioner is controlled to operate at the adjusted compressor frequency; Determining the system pressure change rate of the air conditioner includes: determining the change time corresponding to each preset value change in the system pressure value of the air conditioner; and determining the change time as the system pressure change rate of the air conditioner. The step of adjusting the compressor frequency of the air conditioner based on the system pressure change rate includes: If the system pressure change rate is determined to be greater than a preset first time threshold and less than or equal to a preset second time threshold, a target change rate range to which the system pressure change rate belongs is determined; according to the preset correspondence between the change rate range and the frequency adjustment value, a target frequency adjustment value corresponding to the target change rate range is determined, wherein the system pressure change rate is proportional to the frequency adjustment value; and the compressor frequency of the air conditioner is adjusted according to the target frequency adjustment value.

2. The method according to claim 1, characterized in that, Determining the initial system pressure value for air conditioning operation based on the outdoor ambient temperature value includes: Determine the operating mode of the air conditioner; When the air conditioner is determined to be in cooling mode, a first system pressure value is determined based on the outdoor ambient temperature value; the first system pressure value is set as the initial system pressure value for the air conditioner, and the first system pressure value is less than a preset pressure threshold. When the air conditioner is determined to be in heating mode, a second system pressure value is determined based on the outdoor ambient temperature value; the second system pressure value is determined as the initial system pressure value for the air conditioner, and the second system pressure value is greater than or equal to the pressure value threshold.

3. The method according to claim 1, characterized in that, The step of controlling the air conditioner operation based on the initial system pressure value includes: Based on the initial system pressure value, determine the predicted target temperature value for the air conditioner operation; Determine the temperature difference between the predicted target temperature value and the actual target temperature value of the air conditioner; The initial compressor frequency for the air conditioner is determined based on the initial system pressure value and the temperature difference value. The compressor of the air conditioner is controlled to operate at the initial compressor frequency.

4. The method according to claim 1, characterized in that, The step of adjusting the compressor frequency of the air conditioner based on the system pressure change rate includes: Determine whether the system pressure change rate is less than or equal to a preset first time threshold; If it is determined that the system pressure change rate is less than or equal to the first time threshold, then the current compressor frequency of the air conditioner is kept unchanged; If it is determined that the system pressure change rate is greater than the first time threshold, then it is determined whether the system pressure change rate is greater than the preset second time threshold. If the system pressure change rate is determined to be greater than the second time threshold, the process returns to the step of obtaining the outdoor ambient temperature value of the outdoor unit of the air conditioner.

5. The method according to claim 1, characterized in that, The control of the air conditioner compressor to operate at the adjusted compressor frequency includes: The compressor of the air conditioner is controlled to run at the adjusted compressor frequency for a preset time period; Determine whether the indoor temperature value corresponding to the air conditioner has reached the preset target temperature value; If it is determined that the indoor temperature value has reached the target temperature value, then the compressor of the air conditioner is controlled to maintain the current compressor frequency. If it is determined that the indoor temperature value of the air conditioner has not yet reached the target temperature value, then return to the step of determining the system pressure change rate of the air conditioner.

6. The method according to claim 1, characterized in that, Before controlling the air conditioner operation based on the initial system pressure value, the method further includes: Determine the operating mode of the air conditioner; If the air conditioner is determined to be in cooling mode, determine whether a first historical pressure value exists in the preset storage area, wherein the first historical pressure value is the pressure at which the compressor stops running when the air conditioner is in cooling mode; if the storage area is determined to have the first historical pressure value, determine the first historical pressure value as the initial system pressure value for the air conditioner to operate, and execute the step of controlling the operation of the air conditioner based on the initial system pressure value. If the air conditioner is determined to be in heating mode, determine whether a second historical pressure value exists in the preset storage area, wherein the second historical pressure value is the pressure at which the compressor stops running when the air conditioner is in heating mode; if the storage area is determined to have the second historical pressure value, determine the second historical pressure value as the initial system pressure value for the operation of the air conditioner, and execute the step of controlling the operation of the air conditioner based on the initial system pressure value.

7. An air conditioning operation control device, characterized in that, The apparatus for operating the air conditioning operation control method according to claim 1, comprising: The acquisition module is used to acquire the outdoor ambient temperature value where the outdoor unit of the air conditioner is located; The first determining module is used to determine the initial system pressure value for air conditioning operation based on the outdoor ambient temperature value. The second determining module is used to determine the system pressure change rate of the air conditioner during the process of controlling the operation of the air conditioner based on the initial system pressure value; The adjustment module is used to adjust the compressor frequency of the air conditioner according to the system pressure change rate; The control module is used to control the compressor of the air conditioner to operate at the adjusted compressor frequency; Determining the system pressure change rate of the air conditioner includes: determining the change time corresponding to each preset value change in the system pressure value of the air conditioner; and determining the change time as the system pressure change rate of the air conditioner. The step of adjusting the compressor frequency of the air conditioner based on the system pressure change rate includes: If the system pressure change rate is determined to be greater than a preset first time threshold and less than or equal to a preset second time threshold, a target change rate range to which the system pressure change rate belongs is determined; according to the preset correspondence between the change rate range and the frequency adjustment value, a target frequency adjustment value corresponding to the target change rate range is determined, wherein the system pressure change rate is proportional to the frequency adjustment value; and the compressor frequency of the air conditioner is adjusted according to the target frequency adjustment value.

8. An air conditioner, characterized in that, include: A processor and a memory, the processor being configured to execute an air conditioning operation control program stored in the memory to implement the air conditioning operation control method according to any one of claims 1 to 6.

9. A storage medium, characterized in that, The storage medium stores one or more programs, which can be executed by one or more processors to implement the air conditioning operation control method according to any one of claims 1 to 6.

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