Air conditioning equipment and energy-saving regulation and control method of air conditioning equipment

Abstract

The invention relates to air conditioning equipment and an energy-saving regulation and control method of the air conditioning equipment and relates to the field of air conditioners, and the air conditioning equipment comprises a refrigerant circulation loop which comprises a compressor, a condenser, an expansion valve and an evaporator; the controller is configured to monitor the actual temperature change rate of the indoor space in the process of performing energy-saving regulation and control on the frequency of the compressor according to a preset frequency control path, and the preset frequency control path is obtained after performing energy-saving optimization on the frequency of the compressor based on a temperature reaching cooling capacity estimated value and a temperature reaching duration estimated value; the temperature reaching cooling capacity estimated value is inquired from a storage space of the air conditioning equipment, and the temperature reaching duration estimated value is determined according to a preset basic temperature change rate matched with the target rate interval; and under the condition that it is monitored that the actual temperature change rate exceeds the target rate interval, compensation regulation and control are conducted on the frequency of the compressor on the basis of a preset frequency control path, so that the actual temperature change rate of the indoor space is within the target rate interval. According to the technical scheme, the temperature regulation and control effect can be improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, and in particular to an air conditioning equipment and an energy-saving control method for the air conditioning equipment. Background Technology

[0002] With the continuous development of air conditioning technology, energy-saving operation has become an important direction for improving user experience and reducing energy consumption.

[0003] In related technologies, once an energy-saving control strategy is determined, the system will operate in accordance with that strategy until the set temperature is reached or the energy-saving operation ends.

[0004] However, in actual air conditioning usage scenarios, the heat load in a room may dynamically change due to factors such as ambient temperature variations, occupant activity, and the opening and closing of doors and windows. Under such circumstances, if the air conditioning is operated according to the established energy-saving control strategy, it is easy to cause poor temperature control, the indoor temperature to fail to reach the set temperature for a long time, user needs to be met for a long time, and comfort to be significantly reduced. Summary of the Invention

[0005] Therefore, it is necessary to provide an air conditioning device and air conditioning equipment that can improve the temperature control effect in response to the above-mentioned technical problems.

[0006] In a first aspect, this application provides an air conditioning device, comprising:

[0007] The refrigerant circulation loop, including the compressor, condenser, expansion valve and evaporator, is used to realize the refrigeration or heating cycle of the refrigerant;

[0008] The controller is configured as follows:

[0009] During the energy-saving regulation of the compressor frequency according to the preset frequency control path, the actual temperature change rate of the corresponding indoor space of the air conditioning equipment is monitored. The preset frequency control path is obtained by optimizing the compressor frequency based on the estimated cooling capacity and the estimated duration of reaching the temperature. The estimated cooling capacity is obtained from the storage space of the air conditioning equipment, and the estimated duration of reaching the temperature is determined according to the preset base temperature change rate adapted to the target rate range.

[0010] If the actual rate of temperature change exceeds the target rate range, the compressor frequency is adjusted to compensate for the actual rate of temperature change in the indoor space, based on the preset frequency control path, so that the actual rate of temperature change in the indoor space is within the target rate range.

[0011] Technical Effect: During the temperature reach task execution, the controller, based on the estimated cooling capacity obtained from the storage space and the estimated temperature reach duration determined according to the preset baseline temperature change rate adapted to the target rate range, performs collaborative energy-saving optimization of the compressor frequency, generates a frequency control path, and regulates the compressor according to the frequency control path. Since the estimated temperature reach duration is determined based on the preset baseline temperature change rate, the generated frequency control path should ensure that the actual temperature change rate is within the target rate range when optimizing to meet this duration target. Therefore, if the actual temperature change rate deviates from the preset target rate range, it can be determined that the output capacity of the air conditioning equipment is mismatched with the actual heat load of the current indoor space. In this case, the compressor frequency is immediately compensated and adjusted based on the original frequency control path to correct the deviation between the actual temperature change rate and the target rate range, so that the actual temperature change rate is restored and maintained within the target rate range. In this way, when the heat load of the indoor space changes dynamically due to factors such as changes in ambient temperature, human activity, and opening and closing of doors and windows, the controller can effectively sense the dynamic changes in the heat load and respond quickly. This not only retains the energy efficiency advantages of the initial energy-saving control strategy, but also significantly improves the system's adaptability to dynamic disturbances and the accuracy of control. As a result, it can improve the timeliness and stability of temperature control in changing environments and improve the user's comfort experience.

[0012] Secondly, this application provides an air conditioning device, comprising:

[0013] During the energy-saving regulation of the compressor frequency according to the preset frequency control path, the actual temperature change rate of the corresponding indoor space of the air conditioning equipment is monitored. The preset frequency control path is obtained by optimizing the compressor frequency based on the estimated cooling capacity and the estimated duration of reaching the temperature. The estimated cooling capacity is obtained from the storage space of the air conditioning equipment, and the estimated duration of reaching the temperature is determined according to the preset base temperature change rate adapted to the target rate range.

[0014] If the actual rate of temperature change exceeds the target rate range, the compressor frequency is adjusted to compensate for the actual rate of temperature change in the indoor space, based on the preset frequency control path, so that the actual rate of temperature change in the indoor space is within the target rate range.

[0015] Technical Effect: During the temperature reach task execution, the controller, based on the estimated cooling capacity obtained from the storage space and the estimated temperature reach duration determined according to the preset baseline temperature change rate adapted to the target rate range, performs collaborative energy-saving optimization of the compressor frequency, generates a frequency control path, and regulates the compressor according to the frequency control path. Since the estimated temperature reach duration is determined based on the preset baseline temperature change rate, the generated frequency control path should ensure that the actual temperature change rate is within the target rate range when optimizing to meet this duration target. Therefore, if the actual temperature change rate deviates from the preset target rate range, it can be determined that the output capacity of the air conditioning equipment is mismatched with the actual heat load of the current indoor space. In this case, the compressor frequency is immediately compensated and adjusted based on the original frequency control path to correct the deviation between the actual temperature change rate and the target rate range, so that the actual temperature change rate is restored and maintained within the target rate range. In this way, when the heat load of the indoor space changes dynamically due to factors such as changes in ambient temperature, human activity, and opening and closing of doors and windows, the controller can effectively sense the dynamic changes in the heat load and respond quickly. This not only retains the energy efficiency advantages of the initial energy-saving control strategy, but also significantly improves the system's adaptability to dynamic disturbances and the accuracy of control. As a result, it can improve the timeliness and stability of temperature control in changing environments and improve the user's comfort experience. Attached Figure Description

[0016] Figure 1 A schematic diagram of the hardware configuration of the refrigerant circulation loop provided in some embodiments of this application;

[0017] Figure 2 This is a schematic diagram of the hardware configuration of an air conditioning device provided in some embodiments of this application;

[0018] Figure 3 A flowchart illustrating the energy-saving control method provided in some embodiments of this application;

[0019] Figure 4 Timing diagrams for implementing energy-saving control methods provided in some embodiments of this application;

[0020] Figure 5 A flowchart illustrating the process of updating the pre-stored values ​​to achieve the target provided in some embodiments of this application;

[0021] Figure 6 Timing diagrams of the pre-stored numerical update process for achieving the objectives provided in some embodiments of this application;

[0022] Figure 7 A flowchart illustrating the target pre-stored value update method provided in some embodiments of this application;

[0023] Figure 8A flowchart illustrating the target pre-stored value update method provided in other embodiments of this application;

[0024] Figure 9 A flowchart illustrating the process of updating the pre-stored values ​​for achieving the target, provided for other embodiments of this application;

[0025] Figure 10 This is a flowchart illustrating the process of achieving a target pre-stored value without compensation adjustment, provided for some embodiments of this application.

[0026] Figure 11 This is a flowchart illustrating the process of achieving a target pre-stored value under frequency reduction compensation control, provided for some embodiments of this application.

[0027] Figure 12 This is a flowchart illustrating the process of achieving a target pre-stored value under frequency upsampling compensation control, provided for some embodiments of this application.

[0028] Figure 13 A flowchart illustrating the process of querying pre-stored values ​​for achieving the target provided in some embodiments of this application;

[0029] Figure 14 A flowchart illustrating the process of monitoring the actual rate of temperature change provided in some embodiments of this application;

[0030] Figure 15 This is a flowchart illustrating the energy-saving control method provided in some other embodiments of this application. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0032] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0034] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0035] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] In the description of the embodiments in this application, the term "and / or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. In addition, the character " / " in this document generally indicates that the related objects before and after are in an "or" relationship, and the term "multiple" refers to two or more (including two).

[0037] In this application embodiment, air conditioning equipment generally refers to intelligent devices with temperature and / or humidity regulation functions, such as intelligent air conditioning equipment.

[0038] In this application, the air conditioning equipment can achieve cooling or heating functions through its internal refrigerant circulation loop. The refrigerant circulation includes a series of processes, mainly involving four major processes: compression, condensation, expansion, and evaporation, and ultimately achieves air temperature regulation through heat exchange between the refrigerant and the air.

[0039] like Figure 1 As shown, the refrigerant circulation loop 10 includes a compressor 102, a condenser 104, an expansion valve 106, and an evaporator 108.

[0040] Compressor 102 compresses the refrigerant gas at a low temperature and low pressure and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into condenser 104. Condenser 104 condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0041] Expansion valve 106 expands the high-temperature, high-pressure liquid refrigerant condensed in condenser 104 into a low-temperature, low-pressure liquid refrigerant. Evaporator 108 evaporates the refrigerant that expands in expansion valve 106 and returns the low-temperature, low-pressure refrigerant gas to compressor 102.

[0042] Throughout the cycle, the air conditioning unit can regulate the indoor temperature through heat exchange between the refrigerant and the indoor air.

[0043] Air conditioning equipment typically consists of two parts: an outdoor unit and an indoor unit.

[0044] Air conditioning equipment typically includes an outdoor unit and an indoor unit. The outdoor unit may include a compressor and an outdoor heat exchanger, while the indoor unit may include an indoor heat exchanger. An expansion valve may be located in either the indoor or outdoor unit.

[0045] Indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioning unit functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioning unit functions as a cooler in cooling mode.

[0046] Figure 2 Block diagrams of air conditioning equipment provided in some embodiments of this application. For example... Figure 2 As shown in the figure, the air conditioning equipment 20 of this application embodiment includes a refrigerant circulation loop 10, an outdoor fan 202, an indoor fan 206, and a controller 204.

[0047] The refrigerant circulation loop 10 includes a compressor 102, a condenser 104, an expansion valve 106, and an evaporator 108, which are used to realize the cooling or heating cycle of the refrigerant.

[0048] The outdoor fan 202 is used to drive outdoor air through the outdoor heat exchanger by rotation, so that the refrigerant can exchange heat with the outdoor air. The outdoor heat exchanger is used as a condenser 104 in the refrigeration cycle and as an evaporator 108 in the heating cycle.

[0049] The indoor fan 206 is used to drive indoor air through the indoor heat exchanger by rotation, so that the refrigerant and the indoor air can exchange heat. The indoor heat exchanger is used as an evaporator 108 in the refrigeration cycle and as a condenser 104 in the heating cycle.

[0050] As an example, in the refrigeration cycle, the low-temperature, low-pressure refrigerant gas is compressed in the compressor 102 of the outdoor unit, becoming a high-temperature, high-pressure gas. The high-temperature, high-pressure gas flows into the outdoor heat exchanger of the outdoor unit, where it acts as a condenser 104, releasing heat to the outdoor air with the help of an outdoor fan, and condensing into a medium-temperature, high-pressure liquid. The medium-temperature, high-pressure liquid flows through the expansion valve 106, where its pressure and temperature drop sharply, becoming a low-temperature, low-pressure vapor-liquid mixture. The low-temperature, low-pressure refrigerant enters the indoor heat exchanger of the indoor unit, where it acts as an evaporator 108, absorbing heat from the indoor air with the help of an indoor fan, and evaporating into a low-temperature, low-pressure gas, thereby lowering the indoor temperature. Subsequently, the gas returns to the compressor 102, starting the next cycle.

[0051] As an example, in the heating cycle, the low-temperature, low-pressure refrigerant gas is compressed in the compressor 102 of the outdoor unit, becoming a high-temperature, high-pressure gas. The high-temperature, high-pressure gas flows into the indoor heat exchanger of the indoor unit, where it acts as a condenser 104, releasing heat to the indoor air with the help of an indoor fan, condensing into a medium-temperature, high-pressure liquid, thereby raising the indoor temperature. The medium-temperature, high-pressure liquid flows through the expansion valve 106, where the pressure and temperature drop sharply, becoming a low-temperature, low-pressure vapor-liquid mixture. The low-temperature, low-pressure refrigerant enters the outdoor heat exchanger of the outdoor unit, where it acts as an evaporator 108, absorbing heat from the outdoor air with the help of an outdoor fan, and evaporating into a low-temperature, low-pressure gas. Subsequently, the gas returns to the compressor 102, starting the next cycle.

[0052] Controller 204 is configured as follows:

[0053] During the energy-saving regulation of the compressor frequency according to the preset frequency control path, the actual temperature change rate of the corresponding indoor space is monitored. The preset frequency control path is obtained by optimizing the compressor frequency for energy saving based on the estimated cooling capacity and the estimated duration of reaching the target temperature. The estimated cooling capacity is retrieved from the storage space of the air conditioning equipment, and the estimated duration of reaching the target temperature is determined based on the preset base temperature change rate adapted to the target rate range. If the actual temperature change rate is detected to exceed the target rate range, the compressor frequency is compensated and regulated based on the preset frequency control path to ensure that the actual temperature change rate of the indoor space is within the target rate range.

[0054] In some embodiments, such as Figure 3 As shown, controller 204 is configured to perform the following steps:

[0055] Step 301: During the energy-saving regulation of the compressor frequency according to the preset frequency control path, the actual temperature change rate of the indoor space corresponding to the air conditioning equipment is monitored. The preset frequency control path is obtained by optimizing the compressor frequency based on the estimated cooling capacity and the estimated duration of reaching the temperature. The estimated cooling capacity is obtained from the storage space of the air conditioning equipment, and the estimated duration of reaching the temperature is determined according to the preset base temperature change rate adapted to the target rate range.

[0056] Step 302: If the actual temperature change rate is detected to exceed the target rate range, the compressor frequency is compensated and adjusted based on the preset frequency control path so that the actual temperature change rate of the indoor space is within the target rate range.

[0057] Among them, the preset frequency control path can refer to the control strategy obtained by optimizing the compressor frequency for energy saving based on the estimated cooling capacity and the estimated time to reach the temperature. It can be in the form of frequency-time curve or frequency time series.

[0058] As an example, the controller uses the estimated cooling capacity at the target temperature as the total heat exchange volume to be achieved, and the estimated time to reach the target temperature as a time constraint, to establish an optimization objective function. This objective function aims to find a frequency control path where the compressor frequency varies over time, ensuring that the air conditioning unit operating under this frequency control path can output the required total heat exchange volume within a specified time, while minimizing overall system power consumption. Subsequently, the controller invokes its built-in optimization algorithm to solve the problem within the feasible range of compressor frequencies. By comprehensively considering the compressor's cooling capacity, energy efficiency ratio, and coupling relationships with other components at different frequencies, the optimization algorithm ultimately outputs a discrete frequency sequence, which is the preset frequency control path.

[0059] The optimization algorithm may include at least one of dynamic programming, model predictive control, or energy efficiency model-based search algorithms.

[0060] The temperature-reaching task can refer to the process by which air conditioning equipment adjusts the indoor ambient temperature to the set temperature.

[0061] Cooling capacity refers to the total amount of heat that needs to be removed (during cooling) or injected (during heating) from an indoor space to complete the process of reaching a certain temperature. Cooling capacity is a cumulative energy value. For example, to cool a 20-square-meter room with a current temperature of 30°C to 26°C, the total amount of heat that needs to be removed is the cooling capacity for this temperature-reaching process.

[0062] Temperature reaching time can refer to the total time required to complete the temperature reaching process.

[0063] The estimated cooling capacity at the set temperature refers to the pre-stored value that the air conditioning equipment retrieves from its storage space after starting the temperature-reaching task, matching the current operating conditions. The estimated cooling capacity at the set temperature represents the total heat exchange required by the air conditioning equipment to adjust the actual indoor temperature to the set temperature under historical or experimental conditions matching the current operating conditions.

[0064] As an example, a mapping relationship between operating conditions and the cooling capacity at the target temperature can be pre-established before energy-saving control of the air conditioning equipment. For instance, relevant data under different operating conditions can be collected during the historical operation or specific testing of the air conditioning equipment, and the actual total cooling capacity at the target temperature for each operating condition can be calculated based on this data. Subsequently, a queryable mapping table is constructed based on the obtained data set and stored in the storage space of the air conditioning equipment.

[0065] In some feasible implementations, the actual total cooling capacity at different operating conditions, which is collected and calculated, can be directly stored in the mapping table as learning data for the cooling capacity at different operating conditions.

[0066] In other feasible implementations, the collected raw data can be cleaned, statistically analyzed, and augmented first, and the processed results can be stored as temperature and cooling capacity learning data in the mapping table.

[0067] In some feasible embodiments, historical operational data available in practical applications is often limited and difficult to cover all possible operating conditions. In order to build a relatively complete and usable data model under such circumstances, interpolation methods or generative adversarial networks can be used to expand the data for operating points or areas where the mapping table is missing.

[0068] As an example, after the air conditioning unit initiates the temperature reach task, the controller can obtain the current operating condition data and use it as an index or query condition to retrieve the temperature reach cooling capacity learning data that matches the current operating condition from the storage space. This temperature reach cooling capacity learning data is then used as the estimated temperature reach cooling capacity corresponding to the current operating condition. This method of querying the mapping table has relatively low dependence on computing and storage resources, making it suitable for air conditioning units with limited computing and storage resources.

[0069] Operating condition data can refer to a set of real-time physical quantities that characterize the working environment and system status of air conditioning equipment during operation, including at least one of equipment operation data, weather-related data, and regional information.

[0070] Equipment operation data may include at least one of the following: log time, operating mode, set temperature, indoor ambient temperature, indoor ambient humidity, indoor fan speed, indoor and outdoor fan speed, and damper angle.

[0071] Weather-related data may include at least one of the following: outdoor ambient temperature, outdoor ambient humidity, weather type, cloud cover, etc.

[0072] Geographic information may include at least one of the following: latitude and longitude information of the location where the air conditioning equipment is installed.

[0073] Current operating condition data refers to the operating condition data obtained at the current moment when the temperature-reaching task is started.

[0074] The estimated time to reach the target temperature can refer to the result of estimating the time required to reach the target temperature based on a preset base temperature change rate using known data and algorithms.

[0075] As an example, the estimated time to reach the target temperature can be the ratio of the difference between the set temperature and the actual indoor temperature when the target temperature task starts to the rate of change of the preset base temperature.

[0076] As another example, the value of the personalized factor can be determined first based on user preferences, historical achievement status, room thermal characteristics, etc. Then, the ratio of the difference between the set temperature and the actual indoor temperature when the temperature-reaching task is started to the preset base temperature change rate can be calculated, and then the personalized factor can be multiplied or added to this ratio.

[0077] For a user-defined temperature, the cooling capacity and time required to reach that temperature are quantified in terms of heat and time, representing the process of reaching the user-defined temperature from the current operating conditions. Fixing the cooling capacity and time required to reach that temperature essentially transforms the user's temperature setting into a quantifiable physical task that must be completed. All subsequent internal parameter optimizations are based on the premise that this task can be accurately completed.

[0078] The base temperature change rate can refer to a pre-set standard value that indicates how quickly the indoor temperature is expected to change toward the set temperature.

[0079] The actual rate of temperature change can refer to how quickly the indoor temperature changes per unit of time, calculated by real-time monitoring of the indoor temperature.

[0080] The target rate range can refer to a numerical range within which the actual rate of temperature change should fall, whether it is permissible or expected.

[0081] In some feasible embodiments, under ideal operating conditions, after the compressor is energy-savingly regulated according to the frequency control path determined based on a preset baseline temperature change rate, the actual temperature change rate of the indoor space corresponding to the air conditioning unit should be within the target rate range. Therefore, if the actual temperature change rate deviates from the preset target rate range, it can be determined that the output capacity of the air conditioning unit is mismatched with the actual heat load of the current indoor space. In this way, when the heat load of the indoor space dynamically changes due to factors such as changes in ambient temperature, human activity, and the opening and closing of doors and windows, the controller can effectively sense the dynamic changes in the heat load. It can also effectively identify situations where the estimated cooling capacity in the storage space is inaccurate due to incomplete learning data or operating condition deviations.

[0082] As a first example, the base temperature change rate can be determined based on user-defined parameters such as wind speed, intensity, and operating mode, thus directly responding to user intent. For instance, a mapping table or function between the set parameters and the temperature change rate can be pre-established and stored. During the actual execution of the temperature-reaching task, the base temperature change rate that meets the user's current actual needs can be directly queried or calculated from the pre-defined mapping table or function.

[0083] As a second example, the baseline temperature change rate can be determined in advance through experiments. For instance, through a large number of human thermal comfort experiments, combined with psychological assessments, the range of temperature change rates that are comfortable without causing discomfort (such as excessive wind or physiological reactions caused by rapid temperature changes) under different working conditions can be determined, and the baseline temperature change rate can be determined from this range. For example, the median of the temperature change rate range can be determined as the baseline temperature change rate.

[0084] As a third example, the experimentally determined range of temperature change rates can be used as the default or boundary value, while allowing users to make personalized selections or fine-tuning based on this by setting wind speed, mode, etc.

[0085] In some embodiments, such as Figure 4As shown, when the air conditioning unit starts up, or when the user sets or adjusts the set temperature through a human-machine interface such as a remote control, control panel, or mobile application, the controller immediately initiates a temperature-reaching task. During the execution of the temperature-reaching task, the controller first collects sensor data in real time through various sensors distributed in the air conditioning system, or collects external data provided by other terminals or platforms through the communication interface built into the air conditioning unit. Then, it uses some or all of the sensor data and external data as the current operating condition data. Based on the obtained current operating condition data, it queries the air conditioning unit's storage space for the estimated cooling capacity corresponding to the current operating condition, and calculates the estimated temperature-reaching duration based on the obtained current operating condition data and the preset base temperature change rate. After determining the estimated cooling capacity and the estimated temperature-reaching duration, a preset frequency control path that balances energy efficiency and the completion rate of the temperature-reaching task is planned through a preset energy-saving optimization algorithm.

[0086] After the initial frequency control path is planned, frequency commands can be sent to the compressor according to this path to achieve energy-saving frequency regulation. During energy-saving regulation, the controller can acquire the readings of the indoor temperature sensor in real time, periodically, or triggered to obtain the actual temperature value of the indoor space, and calculate the rate of change of indoor temperature over a continuous time period based on this actual temperature value to obtain the actual temperature change rate. The actual temperature change rate reflects the true speed of indoor temperature change under the current energy-saving operation and actual heat load. Subsequently, the controller detects whether the actual temperature change rate is within the target rate range. If the actual temperature change rate is within the target rate range, the current frequency control path is maintained and operation continues. If the actual temperature change rate is not within the target rate range, it indicates that the initial capacity value may be insufficient or too high under the current actual heat load. In this case, the controller immediately initiates compensation regulation, determines the frequency compensation factor based on the deviation between the actual temperature change rate and the target rate range; the controller determines the target frequency value based on the frequency compensation factor and the reference frequency value specified by the preset frequency control path, and all subsequent frequency commands sent to the compressor are based on the compensated target frequency value. This process continues until the controller detects that the indoor temperature has reached the set temperature, at which point the temperature achievement task is complete.

[0087] As an example, if the actual temperature change rate is detected to be higher than the upper limit of the target rate range, the compressor frequency is reduced to compensate for the lower frequency based on the preset frequency control path; if the actual temperature change rate is detected to be lower than the upper limit of the target rate range, the compressor frequency is increased to compensate for the lower frequency based on the preset frequency control path.

[0088] In this embodiment, during the temperature reach task execution, the controller performs collaborative energy-saving optimization of the compressor frequency based on the estimated cooling capacity obtained from the storage space and the estimated temperature reach duration determined according to the preset base temperature change rate adapted to the target rate range. This generates a frequency control path, and the compressor is then regulated according to the frequency control path. Since the estimated temperature reach duration is determined based on the preset base temperature change rate, the generated frequency control path, when optimizing to meet this duration target, should ensure that the actual temperature change rate is within the target rate range. Therefore, if the actual temperature change rate deviates from the preset target rate range, it can be determined that the output capacity of the air conditioning equipment is mismatched with the actual heat load of the current indoor space. In this case, the compressor frequency is immediately compensated and regulated based on the original frequency control path to correct the deviation between the actual temperature change rate and the target rate range, so that the actual temperature change rate recovers and remains within the target rate range. In this way, when the heat load of the indoor space changes dynamically due to factors such as changes in ambient temperature, human activity, and opening and closing of doors and windows, the controller can effectively sense the dynamic changes in the heat load and respond quickly. This not only retains the energy efficiency advantages of the initial energy-saving control strategy, but also significantly improves the system's adaptability to dynamic disturbances and the accuracy of control. As a result, it can improve the timeliness and stability of temperature control in changing environments and improve the user's comfort experience.

[0089] In some embodiments, such as Figure 5 As shown, after the air conditioning unit completes the temperature reaching task, the controller is further configured to perform the following steps:

[0090] Step 501: Detect the actual value of the temperature reaching time for the temperature reaching task;

[0091] Step 502: If the actual time to reach the temperature is inconsistent with the estimated time to reach the temperature, locate the target pre-stored value corresponding to the estimated cooling capacity to reach the temperature from the storage space.

[0092] Step 503: Update the target pre-stored value based on the actual value and the estimated value of the temperature reaching time.

[0093] It's important to note that in actual air conditioning operation scenarios, the estimated cooling capacity and duration of reaching the target temperature are crucial inputs for energy-saving optimization. Their accuracy directly determines the effectiveness of the optimized energy-saving control strategy, thus affecting whether the target temperature can be achieved efficiently. The duration of reaching the target temperature can be obtained through deterministic calculations or mapping relationships based on a given preset base temperature change rate; its implementation path is relatively clear and the results are relatively stable. In contrast, the estimated cooling capacity is determined through learning and analysis from historical and test data, and its accuracy highly depends on the completeness and representativeness of these data. Therefore, when historical and test data coverage is insufficient, or when the actual operating conditions of the air conditioning equipment deviate from the distribution of historical and test data due to differences in installation environment, long-term performance changes, and different user habits, the estimated cooling capacity will be inaccurate, ultimately causing the energy-saving control strategy to deviate from its optimal state, affecting overall energy efficiency and temperature control performance.

[0094] The actual time to reach the set temperature refers to the actual time elapsed from the start of the compressor to the first detection by the indoor temperature sensor that the temperature has reached the set temperature value during a single temperature-reaching task.

[0095] If an inaccurate prediction of the cooling capacity required to reach the target temperature causes the energy-saving control strategy to deviate from its optimal state, this anomaly can be identified by monitoring whether the actual cooling capacity or the actual duration of reaching the target temperature significantly deviates from its corresponding prediction after the temperature-reaching task is completed. However, compared to the cooling capacity, monitoring and calculating the duration of reaching the target temperature is more direct and efficient in implementation. The start and end points of the temperature-reaching process are usually recorded or have data; simply extracting the timestamps from the start and end point data allows for the rapid determination of the actual duration of reaching the target temperature. Alternatively, the actual duration of reaching the target temperature can also be quickly determined through a timer and a simple threshold comparison. Regardless of the method, the computational resource consumption is extremely low. Therefore, by comparing the actual duration of reaching the target temperature with the predicted value, determining whether the predicted cooling capacity is inaccurate allows for model optimization decisions with lower resource consumption and higher response efficiency.

[0096] In some embodiments, such as Figure 6As shown, after each temperature-reaching task is triggered, the actual indoor temperature is continuously monitored by an indoor temperature sensor in sync with energy-saving control. When the actual temperature reaches the set temperature for the first time, the task is considered complete, and energy-saving control ends. Then, the actual duration of the temperature-reaching task is detected and compared with the estimated duration determined during energy-saving control. If the actual duration matches the estimated duration, the accuracy of the estimated cooling capacity is high, and no optimization is needed. If the actual duration differs from the estimated duration, the estimated cooling capacity is inaccurate and requires optimization. In this case, the controller can first use the target operating condition data when the temperature-reaching task starts, or the query records during the execution of the temperature-reaching task, to locate the target pre-stored value corresponding to the estimated cooling capacity for reaching the temperature from the storage space; then, based on the deviation relationship between the actual temperature-reaching duration and the estimated temperature-reaching duration, the controller corrects the located target pre-stored value according to the preset update strategy, thereby updating the target pre-stored value corresponding to the current operating condition.

[0097] In some feasible embodiments, the consistency between the actual value of the time to reach the temperature and the estimated value of the time to reach the temperature can mean that the two values ​​are equal, or that the difference between the two is less than a preset difference threshold.

[0098] As an example, the detection method for the actual temperature reaching time may include: extracting the timestamp carried in the temperature reaching task triggering instruction as the start time, and extracting the timestamp carried in the temperature reaching task termination instruction as the end time; calculating the time difference between the end time and the start time, and determining the time difference as the actual temperature reaching time of this temperature reaching task.

[0099] As another example, the detection method for the actual temperature reach duration can include: immediately starting a timer after each temperature reach task is triggered, continuously monitoring the actual temperature value from the indoor temperature sensor; and immediately stopping the timer once the actual indoor temperature value first reaches the user-set temperature, determining the cumulative time value recorded on the timer as the actual temperature reach duration for this task. After the timer stops and the cumulative time value is retrieved, the timer can also be reset to zero.

[0100] As an example, such as Figure 7 As shown, the update strategy for the target pre-stored value may include: detecting the deviation direction between the actual value of the temperature reaching time and the estimated value of the temperature reaching time; determining the target adjustment direction of the target pre-stored value based on the deviation direction; and adjusting the target pre-stored value according to the preset step size and the target adjustment direction to realize the update of the target pre-stored value.

[0101] As another example, such as Figure 8As shown, the update strategy for the target pre-stored value may include: detecting the direction and magnitude of the deviation between the actual value of the time to reach the temperature and the estimated value of the time to reach the temperature; determining the target adjustment direction of the target pre-stored value based on the deviation direction, and determining the target adjustment range of the target pre-stored value based on the deviation magnitude; and adjusting the target pre-stored value according to the target adjustment direction and target adjustment range to update the target pre-stored value.

[0102] It should be noted that since the pre-stored values ​​in the storage space are obtained through offline learning and analysis based on relatively sufficient historical and experimental data, their overall accuracy is already quite high. In practical applications, inaccurate temperature and cooling capacity predictions often occur in specific operating conditions where historical and experimental data are insufficient or not covered. Therefore, this embodiment adopts a targeted correction strategy when updating the pre-stored values ​​online, adjusting only the target pre-stored values ​​for the operating conditions involved in this temperature-reaching task, while keeping the pre-stored values ​​for other unrelated operating conditions unchanged. This effectively avoids the erroneous generalization of possible random deviations or local operating condition characteristics from this task to all data, thus ensuring the stability and reliability of the overall pre-stored values ​​while achieving local accuracy self-adaptation.

[0103] In this embodiment, the accuracy of the estimated cooling capacity at the target temperature is first determined by the time it takes to reach the target temperature. Then, if the estimated cooling capacity at the target temperature is determined to be inaccurate, the deviation in the time it takes to reach the target temperature is used to optimize the pre-stored values ​​corresponding to the current operating conditions in the storage space. This allows the pre-stored values ​​in the storage space to self-correct based on the actual operating performance of the air conditioning equipment in its specific installation environment. As data accumulates, the pre-stored values ​​in the storage space gradually adapt to the unique thermal characteristics of the environment (such as room heat capacity and insulation performance) and the individual performance differences of the equipment. This also overcomes the technical defect that the performance of the air conditioning equipment changes over time, leading to inaccuracies in the pre-stored values ​​in the storage space, and significantly improves the long-term accuracy of the pre-stored values ​​in the storage space.

[0104] In some embodiments, such as Figure 9 As shown, during the process of updating the target pre-stored value based on the actual and estimated durations of temperature reaching, the controller is further configured as follows:

[0105] Step 901: Obtain the compensation and control records of the air conditioning equipment during the temperature reach task execution process;

[0106] Step 902: Update the target pre-stored value based on the actual value of the temperature reaching duration, the estimated value of the temperature reaching duration, and the compensation and control records.

[0107] It should be noted that if the air conditioning equipment has already compensated for the compressor frequency during the temperature-reaching task, this compensation will also cause a deviation between the actual temperature-reaching time and the estimated temperature-reaching time. Therefore, if the pre-stored value in the memory is updated solely based on the deviation between the actual and estimated temperature-reaching time, it is likely to result in inaccurate correction direction and unreasonable correction magnitude.

[0108] Among them, the compensation control record can refer to the historical operation log of the controller compensating for the compressor frequency during the execution of the temperature reaching task in order to correct the deviation of the actual temperature change rate.

[0109] In some embodiments, during the execution of the temperature reaching task, whenever the controller performs compensation adjustment on the compressor frequency, it records this compensation adjustment in a designated storage path or log file. After the temperature reaching task is completed, if the actual temperature reaching duration differs from the estimated temperature reaching duration, the controller can read the compensation adjustment information from the designated storage path or log file and organize it into a compensation adjustment record. Then, combining this compensation adjustment record with the deviation relationship between the actual temperature reaching duration and the estimated temperature reaching duration, the controller corrects the located target pre-stored value according to a preset update strategy, thereby updating the target pre-stored value corresponding to the current operating condition.

[0110] In this embodiment, by introducing and analyzing compensation control records, the impact of compensation control on the actual temperature reach time can be captured, thereby separating the portion caused by compensation control from the temperature reach time deviation. Therefore, more accurate error attribution can be achieved, a more reasonable correction range can be determined, and over-correction or under-correction caused by confusing the effect of compensation control with data errors can be reduced, thereby improving the efficiency and accuracy of the pre-stored numerical self-learning optimization process.

[0111] In some embodiments, during the process of updating the target pre-stored value based on the actual value of the time to reach the temperature, the estimated value of the time to reach the temperature, and the compensation and control records, the controller is further configured to perform the following steps:

[0112] If, based on the compensation and control records, it is determined that no compensation and control were carried out during the execution of this temperature-reaching task, and the actual temperature-reaching duration is less than the estimated temperature-reaching duration, the target pre-stored value will be reduced.

[0113] If, based on the compensation and control records, it is determined that no compensation and control were carried out during the execution of this temperature-reaching task, and the actual temperature-reaching duration is greater than the estimated temperature-reaching duration, the target pre-stored value will be increased.

[0114] In some embodiments, such as Figure 10As shown, after obtaining the compensation and control records, it can be determined whether compensation and control were carried out during the execution of this temperature-reaching task based on the compensation and control records; after determining that the actual temperature-reaching duration is inconsistent with the estimated temperature-reaching duration, the numerical relationship between the actual temperature-reaching duration and the estimated temperature-reaching duration can be compared.

[0115] If no compensation adjustments were made during the temperature reach task execution, and the actual temperature reach duration is less than the estimated duration, it indicates that under the current preset frequency control path, the actual output capacity of the air conditioning equipment exceeds the actual load demand, causing the task to complete faster than expected. This typically means that the estimated cooling capacity at temperature reach is higher than the actual load demand under current operating conditions. Therefore, the controller can adjust the located target pre-stored value according to the preset update strategy to make it closer to the actual load demand. This provides a more accurate estimated cooling capacity at temperature reach during subsequent temperature reach tasks, generating a more suitable frequency control path and avoiding overcapacity and energy waste.

[0116] If no compensation adjustments were made during the temperature reach task execution, and the actual temperature reach duration is greater than the estimated duration, it indicates that under the current preset frequency control path, the actual output capacity of the air conditioning equipment cannot meet the actual load demand, resulting in a slower-than-expected task completion. This typically means that the estimated cooling capacity at temperature reach is lower than the actual load demand under current operating conditions. Therefore, the controller can adjust the located target pre-stored value according to the preset update strategy to make it closer to the actual load demand. This provides a more accurate estimated cooling capacity at temperature reach during subsequent temperature reach task executions, thereby providing sufficient output capacity to ensure the timely completion of the temperature reach task.

[0117] In this embodiment, by reducing the target pre-stored value when no compensation adjustment is performed during the temperature-reaching task and the actual temperature-reaching duration is less than the estimated temperature-reaching duration, the target pre-stored value can be made closer to the actual load demand under this operating condition. This provides a more accurate estimated cooling capacity for subsequent temperature-reaching tasks, generating a more suitable frequency control path and avoiding overcapacity and energy waste. Conversely, by increasing the target pre-stored value when no compensation adjustment is performed during the temperature-reaching task and the actual temperature-reaching duration is greater than the estimated temperature-reaching duration, the target pre-stored value can be made closer to the actual load demand under this operating condition. This provides a more accurate estimated cooling capacity for subsequent temperature-reaching tasks, thereby providing sufficient output capacity to ensure the timely completion of the temperature-reaching task.

[0118] In some embodiments, the compensation control includes frequency reduction compensation control; during the process of updating the target pre-stored value based on the actual value of the temperature reaching time, the estimated value of the temperature reaching time, and the compensation control record, the controller is further configured to perform the following steps:

[0119] If, based on the compensation and control records, it is determined that frequency reduction compensation and control were carried out during the execution of this temperature-reaching mission, and the actual temperature-reaching duration is greater than the estimated temperature-reaching duration, the target pre-stored value will be reduced as a first adjustment.

[0120] If, based on the compensation and control records, it is determined that frequency reduction compensation and control were performed during the execution of this temperature-reaching mission, and the actual temperature-reaching duration is less than the estimated temperature-reaching duration, a second reduction adjustment is made to the target pre-stored value. The reduction magnitude of the second reduction adjustment is greater than that of the first reduction adjustment.

[0121] Among them, frequency reduction compensation control refers to the control action of reducing the operating frequency of the compressor in order to reduce the actual temperature change rate during the execution of the temperature reaching task.

[0122] In some embodiments, such as Figure 11 As shown, after obtaining the compensation and control records, it can be determined whether frequency reduction compensation and control were performed during the execution of this temperature-reaching task based on the compensation and control records; after determining that the actual temperature-reaching duration is inconsistent with the estimated temperature-reaching duration, the numerical relationship between the actual temperature-reaching duration and the estimated temperature-reaching duration can be compared.

[0123] If frequency reduction compensation was implemented during the temperature-reaching task, and the actual temperature-reaching duration was greater than the estimated duration, it indicates that although the controller mitigated the excessively rapid rate of actual temperature change during the task through frequency reduction compensation, the final completion time was later than expected. This typically means that the estimated cooling capacity for reaching the temperature is higher than the actual load demand under current operating conditions, resulting in an overly strong system output. Even after frequency reduction compensation, the output may still be insufficient, or the frequency reduction may be excessive, leading to an unsatisfactory match between system output and actual demand. Therefore, the controller can adjust the target pre-stored value according to a preset update strategy to appropriately correct the overly high portion. This provides a more accurate estimated cooling capacity for reaching the temperature in subsequent temperature-reaching tasks, generating a more suitable frequency control path, ensuring timely completion of the temperature-reaching task while avoiding overcapacity and energy waste.

[0124] If frequency reduction compensation was implemented during the temperature-reaching task, and the actual temperature-reaching duration was less than the estimated duration, it indicates that although the controller slowed down the excessively rapid rate of actual temperature change during the task, the task was still completed faster than expected. This typically means that the estimated cooling capacity for reaching the temperature is significantly higher than the actual load demand, resulting in severe overcapacity in the system, which the frequency reduction control failed to completely offset. Therefore, the controller can perform a second reduction adjustment on the target pre-stored value according to a preset update strategy, and this reduction should be greater than the first adjustment, to more significantly correct the obviously high target pre-stored value. This will provide a more accurate estimated cooling capacity for reaching the temperature in subsequent temperature-reaching tasks, generating a more suitable frequency control path and avoiding overcapacity and energy waste.

[0125] In this embodiment, by performing frequency reduction compensation during the temperature-reaching task execution and when the actual temperature-reaching duration is greater than the estimated duration, the target pre-stored value can be reduced by a small margin to moderately correct the excessively high value. Conversely, by performing frequency reduction compensation during the temperature-reaching task execution and when the actual temperature-reaching duration is less than the estimated duration, the target pre-stored value can be reduced by a larger margin to effectively correct the significantly high target pre-stored value. This provides a more accurate estimated cooling capacity for subsequent temperature-reaching tasks, generates a more suitable frequency control path, and avoids overcapacity and energy waste.

[0126] In some embodiments, the compensation control includes up-frequency compensation control; during the process of updating the target pre-stored value based on the actual value of the temperature reaching duration, the estimated value of the temperature reaching duration, and the compensation control record, the controller is further configured to perform the following steps:

[0127] If, based on the compensation and control records, it is determined that frequency upsampling compensation and control were carried out during the execution of this temperature-reaching mission, and the actual temperature-reaching duration is greater than the estimated temperature-reaching duration, the target pre-stored value is first increased.

[0128] Based on the compensation and control records, it was determined that frequency upsampling compensation and control were carried out during the execution of this temperature-reaching mission, and the actual temperature-reaching duration was less than the estimated temperature-reaching duration. Therefore, the target pre-stored value was subjected to a second increase process, and the increase rate of the second increase process was less than the increase rate of the first increase process.

[0129] Among them, frequency increase compensation control refers to the control action of increasing the operating frequency of the compressor in order to improve the actual temperature change rate during the execution of the temperature reaching task.

[0130] In some embodiments, such as Figure 12As shown, after obtaining the compensation and control records, it can be determined whether frequency upsampling compensation and control were performed during the execution of this temperature-reaching mission. After determining that the actual temperature-reaching duration is inconsistent with the estimated temperature-reaching duration, the numerical relationship between the actual temperature-reaching duration and the estimated temperature-reaching duration can be compared.

[0131] If frequency compensation was applied during the temperature reach operation, and the actual temperature reach time exceeded the estimated time, it indicates that the controller attempted to increase the excessively slow actual temperature change rate through frequency compensation, but the final task completion time still exceeded expectations. This typically means the target preset value is significantly low, resulting in severely insufficient system output. Even after frequency compensation, the air conditioning equipment's output still cannot meet the actual load demand. Therefore, the controller can, according to a preset update strategy, perform a first increase on the target preset value with a relatively large increment to significantly correct this significantly low target preset value. This provides a more accurate estimated cooling capacity for subsequent temperature reach operations, allowing for the planning of a frequency control path with sufficient output capacity, effectively ensuring the timely completion of the temperature reach task.

[0132] If frequency compensation adjustment was performed during the temperature reach task execution, and the actual temperature reach time is less than the estimated temperature reach time, it indicates that the controller has increased the actual temperature change rate through frequency compensation adjustment, shortening the temperature reach task completion time to within the estimated temperature reach time. This usually means that the target preset value is slightly low, or the frequency compensation can effectively make up for some of the deficiency, so that the output of the air conditioning equipment basically matches or even slightly exceeds the demand. Therefore, the controller can, according to the preset update strategy, perform a second increase on the target preset value with a small increase to appropriately correct its low value. This provides a more accurate estimated cooling capacity for subsequent temperature reach tasks, making the system processing more closely match the actual load demand, ensuring the timely completion of the temperature reach task while optimizing system energy efficiency and avoiding unnecessary energy consumption.

[0133] In this embodiment, by performing frequency upsampling compensation during the temperature-reaching task execution and when the actual temperature-reaching duration is greater than the estimated duration, a significant increase in the target pre-stored value can effectively correct the significantly low target pre-stored value. Conversely, by performing frequency upsampling compensation during the temperature-reaching task execution and when the actual temperature-reaching duration is less than the estimated duration, a smaller increase in the target pre-stored value can moderately correct the target pre-stored value. This provides a more accurate estimated cooling capacity for subsequent temperature-reaching tasks, generates a more suitable frequency control path, and ensures the timely completion of the temperature-reaching task.

[0134] In some embodiments, such as Figure 13As shown, during the process of querying the target pre-stored value from the storage space based on the target operating condition data of the air conditioning equipment when the temperature-reaching task is started, the controller is further configured as follows:

[0135] Step 1301: Detect the time deviation between the actual time to reach temperature and the estimated time to reach temperature;

[0136] Step 1302: If the time deviation value does not exceed the preset time difference threshold, query the target pre-stored value from the storage space based on the target operating condition data of the air conditioning equipment when the temperature reaching task is started.

[0137] It should be noted that there are two main reasons for deviations in the temperature reach time during the temperature reach task execution. First, inaccurate temperature reach cold load estimations can lead to errors in the pre-stored values ​​corresponding to certain operating conditions due to insufficient coverage of historical and test data. However, the pre-stored values ​​in the storage space are usually determined based on long-term data accumulation and analysis, so even if they may cause deviations in the temperature reach time, the resulting deviations are usually not significant. The other reason is sudden changes in indoor heat load (such as opening doors and windows, or people gathering). Sudden changes in indoor heat load are accidental and sudden, and the resulting deviations are usually more significant. If all deviations are used indiscriminately to update the pre-stored values, the occasional large deviations caused by sudden load changes may be mistakenly identified as learning data errors and corrected accordingly. This would cause the pre-stored values, which originally reflected typical operating conditions, to be interfered with or even misled by occasional abnormal data, causing the pre-stored values ​​to gradually deviate from their typical representativeness, and thus systematically affecting the accuracy of all subsequent energy-saving controls based on those pre-stored values.

[0138] In some embodiments, after determining that the actual time to reach the desired temperature is inconsistent with the estimated time to reach the desired temperature, the controller first calculates the difference between the two values ​​and uses the absolute value of this difference as the time deviation value. Then, it compares this time deviation value with a pre-stored time difference threshold. If the time deviation value does not exceed the time difference threshold, it is determined that the deviation is caused by inaccurate pre-stored values, and the update process for the target pre-stored data is immediately initiated, executing the step of locating the target pre-stored value corresponding to the estimated cooling capacity at the desired temperature from the storage space. If the time deviation value exceeds the time difference threshold, it is determined that the deviation is not caused by inaccurate pre-stored values, and at least most of the deviation is caused by sudden changes in indoor heat load (e.g., opening doors and windows, gathering of people, etc.). In this case, updating the target pre-stored value in the storage space based on this deviation could easily lead to incorrect corrections; therefore, the target pre-stored value is not updated.

[0139] In this embodiment, by setting a reasonable preset time difference threshold, an efficient deviation cause discrimination mechanism is constructed. This effectively distinguishes between small deviations caused by errors in the pre-stored values ​​themselves and large deviations caused by sudden load changes. Furthermore, only for small deviations determined to be likely caused by errors in the pre-stored values ​​themselves, the target pre-stored data location and update process is triggered; while for large deviations determined to be caused by sudden load changes, no update operation is performed. This reduces the probability that pre-stored values ​​will be misled by occasional disturbances and deviate from the correct direction. This improves the stability and reliability of the pre-stored data, providing a solid and reliable data foundation for long-term, precise energy-saving optimization control of the air conditioning system.

[0140] In some embodiments, such as Figure 14 As shown, before compensating for and regulating the compressor frequency based on the preset frequency control path, the controller is further configured to perform the following steps:

[0141] Step 1401: Obtain the current duration of the Davin task;

[0142] Step 1402: Determine the target rate range based on the current duration. The upper and lower limits of the target rate range remain unchanged or decrease as the current duration increases.

[0143] Step 1403: Monitor whether the actual rate of temperature change exceeds the target rate range.

[0144] It should be noted that the heat load of air conditioning equipment consists of factors such as wall radiation, heat leakage from walls and windows, window radiation, heat storage load, fresh air load, and internal disturbance load. As the temperature-reaching process progresses, these various loads gradually become apparent, causing the actual load on the air conditioning equipment to gradually increase. Under the same output, the rate of temperature change will naturally decrease as the load increases. If a constant rate of temperature change is forcibly maintained throughout the temperature-reaching process to counteract this physical law, the air conditioning equipment needs to continuously increase its output to compensate for the ever-increasing load, often leading to a significant increase in overall energy consumption.

[0145] The current duration can refer to the time elapsed from the start of the Dawen mission to the current moment.

[0146] A target rate range refers to a numerical range within which the actual rate of temperature change should fall at the current moment, defined by an upper limit and a lower limit. Both the upper and lower limits of the target rate range remain constant or decrease as the current duration increases.

[0147] The rate of temperature change throughout the entire temperature-reaching mission remains within a preset overall rate range. The target rate range is a sub-range defined from the preset overall rate range based on the current duration.

[0148] The preset base temperature change rate is within a preset overall rate range. For example, it can be the median, one-third quantile, or two-thirds quantile of the preset overall rate range. The specific value can be determined based on the actual situation or test results. This embodiment does not impose any restrictions on this.

[0149] As an example, the preset overall rate range can be [0.15, 0.33]. The sub-intervals divided according to the current duration are shown in Table 1:

[0150] Table 1

[0151] Experimental tests determined the basic temperature change rate to be 0.24℃ / min.

[0152] In some embodiments, after the temperature reaching task is initiated, the controller immediately starts an internal timer. When it is necessary to detect whether the actual temperature change rate exceeds the target rate range, the controller first reads the current cumulative duration of the timer and determines this cumulative duration as the current duration; then, it determines the target rate range based on the current duration. Subsequently, the controller compares the actual temperature change rate with the upper and lower limits of the target rate range to determine whether the actual temperature change rate is within the target rate range.

[0153] During a temperature-reaching task, the timer neither pauses nor stops. The controller continuously monitors the actual temperature of the indoor space using an indoor temperature sensor. When the actual temperature reaches the set value for the first time, the task is considered complete. After the task is completed, the timer can be stopped and its reading reset to zero.

[0154] As an example, determining the target rate range based on the current duration can include: querying the target duration range to which the current duration belongs from a preset duration-rate range mapping table, and then determining the target rate range based on the upper and lower limits corresponding to that target duration range. The duration-rate range mapping table can be pre-constructed based on actual conditions or test results, and the mapping table records multiple preset duration ranges, as well as the upper and lower limits corresponding to each duration range.

[0155] As another example, determining the target rate range based on the current duration can be achieved by multiplying a preset baseline temperature change rate by a dynamic target attenuation coefficient. Specifically, after the temperature-reaching task begins, the controller first obtains the current duration and queries or calculates the target attenuation coefficient corresponding to the current duration based on a preset mapping table or functional relationship. Then, the preset baseline temperature change rate is multiplied by the target attenuation coefficient, and the product is determined as the median of the target rate range. Combined with the preset length or preset fluctuation range of the rate range, the upper and lower limits of the target rate range are determined. When the duration is short, the attenuation coefficient can be greater than 1, ensuring that both the upper and lower limits of the calculated target rate range are higher than the preset baseline temperature change rate. This guides the system to achieve rapid cooling with higher output, improving initial responsiveness. As the temperature-reaching task continues and the duration increases, the attenuation coefficient gradually decreases and eventually becomes less than 1, causing the upper and lower limits of the target rate range to gradually decrease below the preset baseline temperature change rate. This allows the actual temperature change rate to decrease naturally and smoothly in accordance with thermodynamic laws during the temperature-reaching process.

[0156] In this embodiment, by allowing the target rate range to decay over time, the air conditioning equipment no longer insists on a constant speed throughout the entire process. Instead, it allows and guides the actual temperature change rate to conform to the actual thermodynamic process, gradually decreasing as the temperature-reaching task progresses, thus achieving better energy efficiency. In the early stages of the task, a higher rate range ensures rapid reduction of room temperature and improves responsiveness; while in the later stages, a lower rate range avoids excessive output in pursuit of unnecessarily high rates, allowing the air conditioning equipment to operate at a more efficient operating point. This achieves an optimized balance between response speed and operating energy efficiency over time, reducing overall energy consumption without significantly affecting user experience.

[0157] In some embodiments, the preset base temperature change rate is greater than or equal to 0.15 and less than or equal to 0.33.

[0158] Based on research on human thermal comfort, excessively rapid cooling rates (e.g., exceeding 0.5°C / min) can easily trigger a cold stress response in the body, leading to rapid vasoconstriction, which may cause discomfort or even health risks, especially for the elderly and children. Therefore, relevant technologies generally recommend setting the upper limit of the temperature change rate at 0.5°C / min.

[0159] However, in actual testing, it was found that if the cooling rate is too high, above 0.33℃ / min, although the set temperature can be reached quickly, it will easily force the air conditioning equipment to work under high load, with the compressor frequently starting and stopping or running at high frequency, resulting in decreased energy efficiency, increased energy consumption, and possibly shortened equipment life.

[0160] Conversely, if the cooling rate is too low, below 0.15℃ / min, although energy consumption can be effectively controlled, it will also cause the indoor temperature response to be too slow, and the indoor space will not reach the required temperature for a long time.

[0161] In this embodiment, considering comfort, health impact, and energy efficiency, the base temperature change rate is set within the range of [0.15℃ / min, 0.33℃ / min]. This effectively reduces the comfort and health risks caused by excessively rapid cooling, ensures the necessary timeliness of temperature response, and helps the system maintain operation within a higher energy efficiency range, thereby achieving a good balance between comfort and energy saving.

[0162] Based on the same inventive concept, this application also provides an energy-saving control method applied to the aforementioned air conditioning equipment. The solution provided by this method is similar to the solution described in the air conditioning equipment above. Therefore, the specific limitations in one or more energy-saving control method embodiments provided below can be found in the limitations on the air conditioning equipment described above, and will not be repeated here.

[0163] In some embodiments, an energy-saving control method for air conditioning equipment is provided, such as... Figure 15 As shown, the method includes:

[0164] Step 1501: During the energy-saving regulation of the compressor frequency according to the preset frequency control path, the actual temperature change rate of the indoor space corresponding to the air conditioning equipment is monitored. The preset frequency control path is obtained by optimizing the compressor frequency based on the estimated cooling capacity and the estimated duration of reaching the temperature. The estimated cooling capacity is obtained from the storage space of the air conditioning equipment, and the estimated duration of reaching the temperature is determined according to the preset base temperature change rate adapted to the target rate range.

[0165] Step 1502: If the actual temperature change rate is detected to exceed the target rate range, the compressor frequency is compensated and adjusted based on the preset frequency control path so that the actual temperature change rate of the indoor space is within the target rate range.

[0166] In some embodiments, after the air conditioning unit has completed the temperature reaching task, the method further includes:

[0167] The system detects the actual time taken to reach the target temperature for the temperature-reaching task. If the actual time taken to reach the target temperature is inconsistent with the estimated time taken to reach the target temperature, the system locates the target pre-stored value corresponding to the estimated cooling capacity for reaching the target temperature from the storage space. The system updates the target pre-stored value based on the actual time taken to reach the target temperature and the estimated time taken to reach the target temperature.

[0168] In some embodiments, updating the target pre-stored value based on the actual value and the estimated value of the temperature reaching time includes:

[0169] Obtain the compensation and control records of the air conditioning equipment during the temperature reach task execution; update the target pre-stored value based on the actual temperature reach duration, the estimated temperature reach duration, and the compensation and control records.

[0170] In some embodiments, the target pre-stored value is updated based on the actual value of the temperature reaching duration, the estimated value of the temperature reaching duration, and the compensation and control records, including:

[0171] If, based on the compensation and control records, it is determined that no compensation and control were implemented during the execution of this temperature-reaching task, and the actual temperature-reaching duration is less than the estimated temperature-reaching duration, the target pre-stored value will be reduced; if, based on the compensation and control records, it is determined that no compensation and control were implemented during the execution of this temperature-reaching task, and the actual temperature-reaching duration is greater than the estimated temperature-reaching duration, the target pre-stored value will be increased.

[0172] In some embodiments, the compensation control includes frequency reduction compensation control; updating the target pre-stored value based on the actual value of the temperature reaching duration, the estimated value of the temperature reaching duration, and the compensation control record includes:

[0173] If, based on the compensation and control records, it is determined that frequency reduction compensation control was performed during the execution of this temperature-reaching mission, and the actual temperature-reaching duration is greater than the estimated temperature-reaching duration, the target pre-stored value is subject to a first reduction adjustment; if, based on the compensation and control records, it is determined that frequency reduction compensation control was performed during the execution of this temperature-reaching mission, and the actual temperature-reaching duration is less than the estimated temperature-reaching duration, the target pre-stored value is subject to a second reduction adjustment, and the reduction magnitude of the second reduction adjustment is greater than the reduction magnitude of the first reduction adjustment.

[0174] In some embodiments, the compensation control includes up-frequency compensation control; updating the target pre-stored value based on the actual value of the temperature reaching duration, the estimated value of the temperature reaching duration, and the compensation control record includes:

[0175] If, based on the compensation and control records, it is determined that frequency upsampling compensation and control were performed during the execution of this temperature-reaching mission, and the actual temperature-reaching duration is greater than the estimated temperature-reaching duration, the target pre-stored value is subjected to a first increase processing. If, based on the compensation and control records, it is determined that frequency upsampling compensation and control were performed during the execution of this temperature-reaching mission, and the actual temperature-reaching duration is less than the estimated temperature-reaching duration, the target pre-stored value is subjected to a second increase processing, and the increase magnitude of the second increase processing is less than the increase magnitude of the first increase processing.

[0176] In some embodiments, locating the target pre-stored value corresponding to the estimated temperature and cooling capacity from the storage space includes:

[0177] The system detects the time deviation between the actual time to reach the target temperature and the estimated time to reach the target temperature. If the time deviation does not exceed the preset time difference threshold, the system locates the target pre-stored value corresponding to the estimated cooling capacity at the target temperature from the storage space.

[0178] In some embodiments, before compensating and regulating the compressor frequency based on a preset frequency control path, the method further includes:

[0179] Obtain the current duration of the temperature reaching task; determine the target rate range based on the current duration, with the upper and lower limits of the target rate range remaining unchanged or decreasing as the current duration increases; monitor whether the actual temperature change rate exceeds the target rate range.

[0180] In some embodiments, the preset base temperature change rate is greater than or equal to 0.15 and less than or equal to 0.33.

[0181] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the methods of the above embodiments.

[0182] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the methods of the above embodiments.

[0183] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the methods of the above embodiments.

[0184] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0185] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0186] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0187] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An air conditioning device, characterized in that, include: The refrigerant circulation loop, including the compressor, condenser, expansion valve and evaporator, is used to realize the refrigeration or heating cycle of the refrigerant; The controller is configured as follows: During the energy-saving regulation of the compressor frequency according to the preset frequency control path, the actual temperature change rate of the indoor space corresponding to the air conditioning equipment is monitored. The preset frequency control path is obtained by optimizing the compressor frequency based on the estimated cooling capacity and the estimated time to reach the temperature. The estimated cooling capacity is obtained from the storage space of the air conditioning equipment, and the estimated time to reach the temperature is determined according to the preset base temperature change rate adapted to the target rate range. If the actual temperature change rate exceeds the target rate range, the frequency of the compressor is compensated and adjusted based on the preset frequency control path so that the actual temperature change rate of the indoor space is within the target rate range.

2. The air conditioning equipment according to claim 1, characterized in that, After the air conditioning unit completes the temperature reaching task, the controller is further configured to: The actual time taken to reach the target temperature is detected. If the actual time to reach the temperature is inconsistent with the estimated time to reach the temperature, the target pre-stored value corresponding to the estimated cooling capacity to reach the temperature is located from the storage space. The target pre-stored value is updated based on the actual value of the temperature reaching time and the estimated value of the temperature reaching time.

3. The air conditioning equipment according to claim 2, characterized in that, In the process of updating the target pre-stored value based on the actual value of the temperature reaching time and the estimated value of the temperature reaching time, the controller is further configured to: Obtain the compensation and control records of the air conditioning equipment during the execution of the temperature reaching task; The target pre-stored value is updated based on the actual value of the temperature reaching time, the estimated value of the temperature reaching time, and the compensation and control record.

4. The air conditioning equipment according to claim 3, characterized in that, In the process of updating the target pre-stored value based on the actual value of the temperature reaching time, the estimated value of the temperature reaching time, and the compensation and control record, the controller is further configured to: If, based on the compensation and control records, it is determined that no compensation and control were performed during the execution of this temperature-reaching task, and the actual temperature-reaching duration is less than the estimated temperature-reaching duration, the target pre-stored value is reduced. If, based on the compensation and control records, it is determined that no compensation and control were performed during the execution of this temperature-reaching task, and the actual temperature-reaching duration is greater than the estimated temperature-reaching duration, the target pre-stored value is increased.

5. The air conditioning equipment according to claim 3, characterized in that, The compensation control includes frequency reduction compensation control; during the process of updating the target pre-stored value based on the actual value of the temperature reaching time, the estimated value of the temperature reaching time, and the compensation control record, the controller is further configured to: If, based on the compensation and control records, it is determined that frequency reduction compensation and control were performed during the execution of this temperature-reaching task, and the actual temperature-reaching duration is greater than the estimated temperature-reaching duration, the target pre-stored value is adjusted by a first reduction. If, based on the compensation and control records, it is determined that frequency reduction compensation and control were performed during the execution of this temperature-reaching task, and the actual temperature-reaching duration is less than the estimated temperature-reaching duration, a second reduction adjustment is made to the target pre-stored value, wherein the reduction magnitude of the second reduction adjustment is greater than the reduction magnitude of the first reduction adjustment.

6. The air conditioning equipment according to claim 3, characterized in that, The compensation control includes frequency upsampling compensation control; during the process of updating the target pre-stored value based on the actual value of the temperature reaching time, the estimated value of the temperature reaching time, and the compensation control record, the controller is further configured to: If, based on the compensation and control records, it is determined that frequency upsampling compensation and control were performed during the execution of this temperature-reaching task, and the actual temperature-reaching duration is greater than the estimated temperature-reaching duration, the target pre-stored value is subjected to a first increase process. If, based on the compensation and control records, it is determined that frequency upsampling compensation and control were performed during the execution of this temperature-reaching task, and the actual temperature-reaching duration is less than the estimated temperature-reaching duration, the target pre-stored value is subjected to a second increase process, wherein the increase magnitude of the second increase process is less than the increase magnitude of the first increase process.

7. The air conditioning equipment according to claim 2, characterized in that, During the process of locating the target pre-stored value corresponding to the estimated temperature cooling capacity from the storage space, the controller is further configured to: The time deviation between the actual time to reach temperature and the estimated time to reach temperature is detected. If the duration deviation value does not exceed the preset duration difference threshold, the target pre-stored value corresponding to the estimated temperature and cooling capacity is located from the storage space.

8. The air conditioning equipment according to any one of claims 1 to 7, characterized in that, Before compensating and regulating the compressor frequency based on the preset frequency control path, the controller is further configured as follows: Get the current duration of the Davin mission; The target rate range is determined based on the current duration, and the upper and lower limits of the target rate range remain unchanged or decrease as the current duration increases. Monitor whether the actual rate of temperature change exceeds the target rate range.

9. The air conditioning equipment according to any one of claims 1 to 7, characterized in that, The preset base temperature change rate is greater than or equal to 0.15 and less than or equal to 0.

33.

10. An energy-saving control method for air conditioning equipment, characterized in that, The method includes: During the energy-saving regulation of the compressor frequency according to the preset frequency control path, the actual temperature change rate of the corresponding indoor space of the air conditioning equipment is monitored. The preset frequency control path is obtained by optimizing the compressor frequency based on the estimated cooling capacity and the estimated duration of reaching the temperature. The estimated cooling capacity is obtained from the storage space of the air conditioning equipment, and the estimated duration of reaching the temperature is determined according to the preset base temperature change rate adapted to the target rate range. If the actual temperature change rate is detected to exceed the target rate range, the frequency of the compressor is compensated and adjusted based on the preset frequency control path so that the actual temperature change rate of the indoor space is within the target rate range.

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