Refrigerator control method, device and equipment, refrigerator, medium and program product

Abstract

The invention relates to a refrigerator control method, device and equipment, a refrigerator, a medium and a program product, and relates to the technical field of refrigerators.The method comprises the steps that the indoor temperature corresponding to a target chamber of the refrigerator and the target temperature are obtained; according to the indoor temperature and the target temperature, a temperature control strategy corresponding to the refrigerator is determined; based on the temperature control strategy and the environment temperature of the environment where the refrigerator is located, temperature control parameters corresponding to the refrigerator are determined; and according to the temperature control parameters, the refrigerator is controlled to operate, so that the target chamber reaches the target temperature. Thus, when the working condition of the refrigerator changes, the temperature control parameters of the refrigerator can be rapidly adjusted, the temperature control effect is ensured, and accurate temperature control over the whole operation process of the refrigerator is achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of refrigerators, and in particular, to a control method, device, equipment, refrigerator, medium, and program product of a refrigerator. Background Art

[0002] The liquid crystal constant temperature technology realizes food preservation by controlling the temperature in the variable-temperature drawer of the refrigerator. The speed of temperature drop and the amplitude of temperature fluctuation when reaching the set point are crucial for the food preservation effect.

[0003] Currently, in the temperature control system of the variable-temperature drawer of the refrigerator, the temperature of the refrigerator is usually controlled by the PID control (Proportional-Integral-Derivative control) algorithm. However, in the actual operation process, the working conditions of the refrigerator are constantly changing, and a single control algorithm is difficult to effectively adapt to the whole process of the refrigerator operation, and cannot effectively ensure the temperature control effect. Summary of the Invention

[0004] To overcome the problems existing in the related art, the present disclosure provides a control method, device, equipment, refrigerator, medium, and program product of a refrigerator, so as to solve the problem that a single control algorithm is difficult to effectively adapt to the whole process of the refrigerator operation and cannot effectively ensure the temperature control effect.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided a control method of a refrigerator, the method including: Obtaining the indoor temperature and the target temperature corresponding to a target compartment of the refrigerator; Determining a temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature; Determining temperature control parameters corresponding to the refrigerator based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located; Controlling the operation of the refrigerator according to the temperature control parameters, so that the target compartment reaches the target temperature.

[0006] Therefore, by dynamically selecting the temperature control strategy of the refrigerator according to the indoor temperature and the target temperature of the target compartment of the refrigerator, the effect of adjusting the temperature control strategy of the refrigerator in real time according to the working conditions of the refrigerator can be achieved. Furthermore, by combining the temperature control strategy with the ambient temperature, the temperature control parameters of the refrigerator are accurately determined to drive the operation of the refrigerator. In this way, when the working conditions of the refrigerator change, the temperature control parameters of the refrigerator can be quickly adjusted to ensure the temperature control effect and realize the accurate temperature control throughout the operation process of the refrigerator.

[0007] In some possible implementation manners, the determining the temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature includes: Determining the temperature control strategy according to the temperature difference between the target temperature and the indoor temperature.

[0008] Accordingly, based on the temperature difference between the target temperature and the indoor temperature, determine the temperature adjustment direction that the refrigerator currently needs to adjust, so as to accurately determine the current temperature control strategy, achieve precise temperature control, and ensure the stability of the temperature control effect.

[0009] In some possible implementation manners, the determining the temperature control strategy according to the temperature difference between the target temperature and the indoor temperature includes: In response to the temperature difference being greater than or equal to a first preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to specified control parameters; or, In response to the temperature difference being greater than or equal to a second preset temperature difference threshold and less than the first preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to a first control algorithm; or, In response to the temperature difference being less than the second preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to a second control algorithm; Wherein, the first preset temperature difference threshold is greater than the second preset temperature difference threshold.

[0010] Accordingly, by dynamically comparing the temperature difference with the first preset temperature difference threshold and the second preset temperature difference threshold, a currently adapted temperature control strategy can be flexibly selected, and different temperature control strategies correspond to different control methods. In this way, when the working condition of the refrigerator changes, according to the current temperature difference, a temperature control strategy suitable for the current working condition can be accurately selected.

[0011] In some possible implementation manners, the temperature control strategy includes controlling the refrigerator to refrigerate according to specified control parameters. The determining the temperature control parameters corresponding to the refrigerator based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located includes: Determine the specified control parameter corresponding to the ambient temperature according to a first preset correspondence; Use the specified control parameter as the temperature control parameter.

[0012] Accordingly, in the case where the temperature control strategy includes controlling the refrigerator to refrigerate according to specified control parameters, the temperature control parameters corresponding thereto can be further determined according to the ambient temperature of the environment where the refrigerator is located. Since the ambient temperature directly reflects the change of the real-time heat load of the refrigerator, that is, the current refrigeration demand of the refrigerator. Therefore, the control parameters can be accurately matched through the ambient temperature, and the refrigeration power output of the refrigerator can be dynamically adjusted to achieve efficient and precise temperature control.

[0013] In some possible embodiments, the specified control parameters include a specified damper opening and a specified fan speed; the first preset correspondence includes the correspondence among the ambient temperature, the damper opening, and the fan speed; the temperature control parameters include a target damper opening and a target fan speed, and the act of using the specified control parameters as the temperature control parameters includes: Using the specified damper opening as the target damper opening; Using the specified fan speed as the target fan speed.

[0014] Accordingly, through the first preset correspondence, the specified damper opening and the specified fan speed corresponding to the current ambient temperature are determined, and the temperature control parameters of the refrigerator are determined based on the specified damper opening and the specified fan speed, so that the indoor temperature of the refrigerator can quickly approach the target temperature, achieving efficient temperature regulation.

[0015] In some possible embodiments, the temperature control strategy includes controlling the refrigerator to refrigerate according to a first control algorithm. Determining the temperature control parameters corresponding to the refrigerator based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located includes: Determining a first algorithm parameter corresponding to the first control algorithm according to the ambient temperature; Determining the temperature control parameters according to the first control algorithm, the first algorithm parameter, the indoor temperature, and the target temperature.

[0016] Accordingly, when the temperature control strategy includes controlling the refrigerator to refrigerate according to a first control algorithm, the first algorithm parameter corresponding to the first control algorithm can be further dynamically determined according to the ambient temperature of the environment where the refrigerator is located. Since the ambient temperature directly reflects the change in the real-time heat load of the refrigerator, that is, reflects the difference in the current refrigeration demand, even within the framework of the same control algorithm, the change in the heat load characteristics caused by different ambient temperatures will significantly affect the temperature control efficiency. Therefore, in order to achieve efficient temperature control, the first algorithm parameter of the current first control algorithm can be accurately matched through the ambient temperature. In this way, in the case of fluctuations in the ambient temperature, the parameters can be quickly adjusted adaptively, so as to achieve accurate matching and efficient control of the temperature control parameters during the whole process of the refrigerator operation.

[0017] In some possible embodiments, the temperature control parameters include a target damper opening and a target fan speed. Determining the temperature control parameters according to the first control algorithm, the first algorithm parameter, the indoor temperature, and the target temperature includes: Determining a first damper opening corresponding to the refrigerator according to the first control algorithm, the first algorithm parameter, the indoor temperature, and the target temperature; Determine the corresponding first fan speed according to the first damper opening degree; Take the first damper opening degree as the target damper opening degree, and take the first fan speed as the target fan speed.

[0018] Accordingly, based on the first control algorithm, the first algorithm parameters, the indoor temperature, and the target temperature, calculate the first damper opening degree of the refrigerator, then determine the corresponding first fan speed through the first damper opening degree, and determine the temperature control parameters of the refrigerator based on the first damper opening degree and the first fan speed, so that the indoor temperature of the refrigerator can quickly approach the target temperature and achieve efficient temperature regulation.

[0019] In some possible implementation manners, the temperature control strategy includes controlling the refrigerator to refrigerate according to a second control algorithm. Determining the temperature control parameters corresponding to the refrigerator based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located includes: Determine the second algorithm parameters corresponding to the second control algorithm according to the ambient temperature; Determine the temperature control parameters according to the second control algorithm, the second algorithm parameters, the indoor temperature, and the target temperature.

[0020] Accordingly, when the temperature control strategy includes controlling the refrigerator to refrigerate according to a second control algorithm, the second algorithm parameters corresponding to the second control algorithm can be further determined dynamically according to the ambient temperature of the environment where the refrigerator is located. Since the ambient temperature directly reflects the change of the real-time heat load of the refrigerator, that is, reflects the difference in the current refrigeration demand, even under the same control algorithm framework, the change of the heat load characteristics caused by different ambient temperatures will significantly affect the temperature regulation efficiency. Therefore, in order to achieve efficient temperature regulation, the second algorithm parameters of the current second control algorithm can be accurately matched through the ambient temperature. In this way, when the ambient temperature fluctuates, the adaptive adjustment of the parameters can be quickly realized, so as to achieve the accurate matching and efficient regulation of the temperature control parameters during the whole operation process of the refrigerator.

[0021] In some possible implementation manners, the temperature control parameters include a target damper opening degree and a target fan speed. Determining the temperature control parameters according to the second control algorithm, the second algorithm parameters, the indoor temperature, and the target temperature includes: Determine the second damper opening degree corresponding to the refrigerator according to the second control algorithm, the second algorithm parameters, the indoor temperature, and the target temperature; Determine the corresponding second fan speed according to the second damper opening degree; Take the second damper opening degree as the target damper opening degree, and take the second fan speed as the target fan speed.

[0022] Accordingly, based on the second control algorithm, the second algorithm parameters, the indoor temperature, and the target temperature, the second damper opening degree of the refrigerator is calculated, and then the corresponding second fan speed is determined through the second damper opening degree. Based on the second damper opening degree and the second fan speed, the temperature control parameters of the refrigerator are determined, so that the indoor temperature of the refrigerator can quickly approach the target temperature and efficient temperature regulation is achieved.

[0023] In some possible implementation manners, the method further includes: In response to the temperature difference being less than the third preset temperature difference threshold, control the damper and the fan of the refrigerator to stop operating; Wherein, the third preset temperature difference threshold is less than the second preset temperature difference threshold.

[0024] Accordingly, when the temperature difference between the target temperature and the indoor temperature is less than the third preset temperature difference threshold, it can be considered that temperature overshoot is about to occur or has already occurred at this time. To avoid further overshoot, the damper and the fan of the refrigerator can be controlled to stop operating and enter the standby state to prevent large hysteresis.

[0025] In some possible implementation manners, the method further includes: When controlling the damper and the fan of the refrigerator to stop operating, re-obtain the indoor temperature and the target temperature corresponding to the target compartment of the refrigerator. If the temperature difference between the re-obtained indoor temperature and the target temperature is greater than or equal to the fourth preset temperature difference threshold, return to the step of determining the temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature to the step of controlling the refrigerator to operate according to the temperature control parameters, so that the target compartment reaches the target temperature; Wherein, the fourth preset temperature difference threshold is less than the second preset temperature difference threshold and greater than the third preset temperature difference threshold.

[0026] Accordingly, when controlling the damper and the fan of the refrigerator to stop operating, if it is further detected that the temperature difference between the indoor temperature and the target temperature of the refrigerator is greater than or equal to the fourth preset temperature difference threshold, that is, the temperature difference becomes larger again, it indicates that the temperature of the refrigerator needs to be further regulated at this time. At this time, the temperature control step can be returned, the temperature control parameters of the refrigerator are re-determined, and the refrigerator is controlled to operate so that the target compartment of the refrigerator reaches the target temperature. At the same time, setting the fourth preset temperature difference threshold to be greater than the third preset temperature difference threshold can effectively avoid the temperature difference from fluctuating back and forth near the third preset temperature difference threshold and prevent the system from operating frequently.

[0027] In some possible implementation manners, the temperature control parameters include a target damper opening degree and a target fan speed, and the controlling the refrigerator to operate according to the temperature control parameters includes: Adjust the air damper opening of the refrigerator according to the target air damper opening; Adjust the fan speed of the refrigerator according to the target fan speed.

[0028] Accordingly, adjusting the air damper opening of the refrigerator based on the target air damper opening and adjusting the fan speed of the refrigerator based on the target fan speed can enable the target compartment of the refrigerator to reach the target temperature efficiently and accurately.

[0029] According to a second aspect of the embodiments of the present disclosure, there is provided a control device for a refrigerator, and the control device for the refrigerator is configured to implement the steps of the control method for the refrigerator provided in the first aspect of the present disclosure.

[0030] According to a third aspect of the embodiments of the present disclosure, there is provided an electronic device, including: a processor; a memory for storing executable instructions executable by the processor; wherein, the processor is configured to implement the steps of the control method for the refrigerator provided in the first aspect of the present disclosure when calling the executable instructions stored on the memory.

[0031] According to a fourth aspect of the embodiments of the present disclosure, there is provided a refrigerator, including the electronic device provided in the third aspect of the present disclosure.

[0032] According to a fifth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium, on which computer program instructions are stored, and the program instructions, when executed by a processor, implement the steps of the control method for the refrigerator provided in the first aspect of the present disclosure.

[0033] According to a sixth aspect of the embodiments of the present disclosure, there is provided a computer program product, including a computer program, and the computer program, when executed by a processor, implements the steps of the control method for the refrigerator provided in the first aspect of the present disclosure.

[0034] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: First, obtain the indoor temperature and the target temperature corresponding to the target compartment of the refrigerator. Second, determine the temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature. Then, based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located, determine the temperature control parameters corresponding to the refrigerator. Finally, control the operation of the refrigerator according to the temperature control parameters so that the target compartment reaches the target temperature. By adopting the above method, dynamically selecting the temperature control strategy of the refrigerator according to the indoor temperature and the target temperature of the target compartment of the refrigerator can achieve the effect of adjusting the temperature control strategy of the refrigerator in real time according to the working conditions of the refrigerator. Furthermore, combining the temperature control strategy with the ambient temperature to accurately determine the temperature control parameters of the refrigerator and drive the operation of the refrigerator. In this way, when the working conditions of the refrigerator change, the temperature control parameters of the refrigerator can be quickly adjusted to ensure the temperature control effect and achieve accurate temperature control throughout the operation process of the refrigerator.

[0035] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present disclosure. Description of the Drawings

[0036] The drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure.

[0037] Figure 1 is a flowchart of a control method for a refrigerator shown according to an exemplary embodiment.

[0038] Figure 2 is a schematic diagram of a control flow of a PID control algorithm shown according to an exemplary embodiment.

[0039] Figure 3 is a block diagram of a temperature control algorithm shown according to an exemplary embodiment.

[0040] Figure 4 is a block diagram of a control device for a refrigerator shown according to an exemplary embodiment.

[0041] Figure 5 is a block diagram of an electronic device shown according to an exemplary embodiment.

[0042] Figure 6 is a block diagram of a refrigerator shown according to an exemplary embodiment. Detailed Description of the Embodiments

[0043] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0044] It should be noted that all actions of obtaining signals, information, or data in the present disclosure are carried out on the premise of complying with the corresponding data protection regulations and policies of the country where it is located and obtaining authorization from the owner of the corresponding device.

[0045] The terms "first", "second", etc. in the specification and claims of this application and the above drawings are used to distinguish similar objects, and do not necessarily need to be understood as a specific order or sequence. In addition, in the description with reference to the drawings, the same reference numerals in different drawings represent the same elements.

[0046] As used herein, the term "including" and its variations are open-ended, i.e., "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0047] In the description of the present disclosure, unless otherwise specified, "a plurality of" means two or more, and other quantifiers are similar; "at least one item (or one or more items)" or its similar expressions refer to any combination of these items, including any combination of a single item or plural items. For example, at least one a can represent any number of a; for another example, one or more of a, b, and c can represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c can be single or multiple; "and / or" is a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Among them, A and B can be singular or plural. The character " / " indicates that the associated objects before and after are in an "or" relationship.

[0048] In the embodiments of the present disclosure, although operations or steps are described in a specific order in the drawings, it should not be understood that these operations or steps are required to be performed in the specific order shown or in a serial order, or that all the operations or steps shown are required to be performed to obtain the desired result. In the embodiments of the present disclosure, these operations or steps can be performed serially; they can also be performed in parallel; or a part of these operations or steps can be performed.

[0049] Before introducing the control method, device, equipment, refrigerator, medium, and program product of the refrigerator provided by the present disclosure, the application scenarios involved in each embodiment of the present disclosure will be introduced first. The present disclosure can be applied to the scenario of refrigerator operation. In order to keep food fresh and meet the storage needs of different foods, some refrigerators are provided with special variable-temperature drawers. The liquid crystal constant-temperature technology realizes food preservation by controlling the temperature in the variable-temperature drawer of the refrigerator. The speed of temperature drop and the amplitude of temperature fluctuation when reaching the set point are crucial for the food preservation effect.

[0050] The inventor found that in the temperature control system of the variable-temperature drawer of a refrigerator, the controlled object (i.e., the temperature on the surface of the food in the variable-temperature drawer) is a control object with characteristics such as instability, uncertainty, time-variance, non-linearity, and time-delay, making it difficult to establish an accurate model. The conventional PID control algorithm is difficult to meet the control requirements, and the manual adjustment of PID parameters not only requires skilled skills but also is very time-consuming. At the same time, the main problem of traditional PID control is parameter tuning. Once the tuning calculation is completed, the parameters remain fixed throughout the control process. Even if the PID parameters are adjusted well, the operating conditions of the refrigerator change continuously during actual operation. Using the same set of parameters of a single control algorithm to adapt to the entire process of the refrigerator's operation cannot effectively guarantee the temperature control effect and affects the freshness preservation effect of the food.

[0051] To solve the above technical problems, the present invention provides a control method, device, equipment, refrigerator, medium, and program product for a refrigerator. According to the indoor temperature and target temperature of the target compartment of the refrigerator, the temperature control strategy of the refrigerator is dynamically selected, which can achieve the effect of adjusting the temperature control strategy of the refrigerator in real time according to the operating conditions of the refrigerator. Furthermore, by combining the temperature control strategy with the ambient temperature, the temperature control parameters of the refrigerator are accurately determined to drive the refrigerator to operate. In this way, when the operating conditions of the refrigerator change, the temperature control parameters of the refrigerator can be quickly adjusted to ensure the temperature control effect and achieve precise temperature control throughout the operation process of the refrigerator.

[0052] The following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings.

[0053] Figure 1 is a flowchart of a control method for a refrigerator shown according to an exemplary embodiment. As Figure 1 shown, the method may include the following steps.

[0054] In step S101, obtain the indoor temperature and target temperature corresponding to the target compartment of the refrigerator.

[0055] Among them, the indoor temperature is the actual temperature state inside the target compartment of the refrigerator, which can be detected in real time by a temperature sensor inside the refrigerator and reflects the current true temperature values of each target compartment of the refrigerator (such as the refrigerating compartment, freezing compartment, variable-temperature compartment, etc.). This temperature value is usually affected by various factors, such as the number of times the refrigerator door is opened, the amount and temperature of the items placed, the ambient temperature, and the refrigeration performance of the refrigerator. For example, frequently opening the refrigerator door will cause the indoor temperature to rise briefly, and putting a large amount of hot food will also cause fluctuations in the indoor temperature.

[0056] The target temperature is the set temperature corresponding to the target compartment of the refrigerator, which is usually the temperature value artificially set by the user according to their own needs and the storage requirements of different food ingredients through the temperature adjustment device of the refrigerator. It represents the temperature that the user expects the interior of the target compartment of the refrigerator to reach and maintain. For example, to better preserve vegetables, the user may set the target temperature of the refrigerating compartment to 4°C; to store meat frozen for a long time, the target temperature of the freezing compartment may be set to -18°C.

[0057] In step S102, based on the indoor temperature and the target temperature, determine the temperature control strategy corresponding to the refrigerator.

[0058] In this step, the temperature control strategy can be determined according to the temperature difference between the target temperature and the indoor temperature. Among them, the temperature difference between the target temperature and the indoor temperature can directly reflect the refrigeration demand of the refrigerator, that is, the workload of refrigeration required by the refrigerator. If the target temperature is lower than the indoor temperature, the greater the difference, the more effort the refrigeration system of the refrigerator needs to make to lower the temperature to reach the target temperature.

[0059] In some embodiments, multiple temperature control strategies can be preset in advance, and different temperature control strategies are selected according to different magnitudes of the temperature difference. For example, when the temperature difference is large, a more aggressive control method can be adopted to make the indoor temperature of the refrigerator reach the target temperature as soon as possible. When the temperature difference is small, a more gentle control method can be adopted to avoid temperature overshoot, that is, the situation where the indoor temperature is lower than the target temperature.

[0060] In step S103, based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located, determine the temperature control parameters corresponding to the refrigerator.

[0061] The inventor found in practice that the ambient temperature where the refrigerator is located will also affect the indoor temperature of the target compartment of the refrigerator and directly reflect the change in the refrigeration load of the refrigerator. For example, when the ambient temperature is too high, the overall refrigeration burden of the refrigerator will increase, and at this time, the indoor temperature of the refrigerator will drop slowly. Therefore, in order to further improve the refrigeration efficiency and save the overall energy consumption of the refrigerator, the temperature control parameters corresponding to the refrigerator can also be determined based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located.

[0062] In step S104, according to the temperature control parameters, control the operation of the refrigerator so that the target compartment reaches the target temperature.

[0063] Among them, the temperature control parameters can include the target damper opening and the target fan speed.

[0064] It can be understood that in a refrigerator, air is usually circulated by a freezer circulation fan through an air duct, and there is a variable temperature air damper at the air outlet for controlling the air inlet flow rate. Therefore, in this step, when the temperature control parameters corresponding to the refrigerator are determined, that is, the target air damper opening and the target fan speed, the air damper opening of the refrigerator can be adjusted according to the target air damper opening, and the fan speed of the refrigerator can be adjusted according to the target fan speed, so that the indoor temperature of the refrigerator can change to or approach the target temperature as soon as possible.

[0065] By adopting the above method, the temperature control strategy of the refrigerator is dynamically selected according to the indoor temperature and the target temperature of the target compartment of the refrigerator, and the effect of adjusting the temperature control strategy of the refrigerator according to the working conditions of the refrigerator in real time can be achieved. Furthermore, by combining the temperature control strategy with the ambient temperature, the temperature control parameters of the refrigerator are accurately determined to drive the refrigerator to operate. In this way, when the working conditions of the refrigerator change, the temperature control parameters of the refrigerator can be quickly adjusted to ensure the temperature control effect and achieve accurate temperature control throughout the operation process of the refrigerator.

[0066] The above temperature control strategy and the determination of temperature control parameters will be described in detail below. Specifically, in the above step S102, determining the temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature may include: determining the temperature control strategy according to the temperature difference between the target temperature and the indoor temperature.

[0067] In some embodiments, the temperature difference can be divided into intervals, that is, divided into multiple temperature interval ranges, and different temperature interval ranges correspond to different temperature control strategies. Then, the corresponding temperature control strategy can be determined according to the temperature difference between the target temperature and the indoor temperature. By dividing the temperature interval ranges, the working conditions of the refrigerator can be divided, so that optimal control processing can be performed for different working conditions, achieving accurate temperature control and ensuring the stability of the temperature control effect.

[0068] Exemplarily, it may include the following three temperature control strategies, that is, controlling the refrigerator to refrigerate according to specified control parameters, controlling the refrigerator to refrigerate according to a first control algorithm, and controlling the refrigerator to refrigerate according to a second control algorithm. And the corresponding temperature control parameters can be determined through the following three possible implementation methods: Strategy 1: In response to the temperature difference being greater than or equal to a first preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to specified control parameters.

[0069] In a possible implementation, when the temperature difference is greater than or equal to the first preset temperature difference threshold, it can be considered that the temperature difference is in the first gear, indicating that the current refrigeration demand of the refrigerator is large. In this case, when adjusting the temperature, there is usually no temperature overshoot phenomenon. Therefore, when the temperature difference is greater than or equal to the first preset temperature difference threshold, a more aggressive control method can be adopted, that is, the refrigerator can be controlled to refrigerate according to a larger temperature control parameter, so that the indoor temperature of the refrigerator can change to the target temperature more quickly. Specifically, the refrigerator can be controlled to refrigerate according to the specified control parameter.

[0070] Furthermore, considering the influence of the ambient temperature of the refrigerator on the indoor temperature, different specified control parameters can also be set for different ambient temperatures, so that the refrigeration power required by the refrigerator under each different ambient temperature can be accurately estimated, and then the efficiency of temperature adjustment can be improved. Exemplarily, the specified control parameter corresponding to the ambient temperature can be determined according to the first preset correspondence. Wherein, the first preset correspondence can include the correspondence between the ambient temperature and the control parameter. When the specified control parameter includes the specified damper opening and the specified fan speed, the first preset correspondence can include the correspondence among the ambient temperature, the damper opening and the fan speed. After determining the specified control parameter corresponding to the ambient temperature according to the first preset correspondence, the specified control parameter can be used as the temperature control parameter. Exemplarily, when the specified control parameter includes the specified damper opening and the specified fan speed, the temperature control parameter includes the target damper opening and the target fan speed. Then, the specified damper opening can be used as the target damper opening, and the specified fan speed can be used as the target fan speed.

[0071] When the temperature control strategy includes controlling the refrigerator to refrigerate according to the specified control parameter, the corresponding temperature control parameter can be further determined according to the ambient temperature of the refrigerator. Since the ambient temperature directly reflects the change of the real-time heat load of the refrigerator, that is, the current refrigeration demand of the refrigerator. Therefore, the control parameter can be accurately matched through the ambient temperature, the refrigeration power output of the refrigerator can be dynamically adjusted, and efficient and accurate temperature control can be realized. And, through the first preset correspondence, the specified damper opening and the specified fan speed corresponding to the current ambient temperature are determined, and the temperature control parameter of the refrigerator is determined based on the specified damper opening and the specified fan speed, so that the indoor temperature of the refrigerator can quickly approach the target temperature and efficient temperature adjustment can be realized.

[0072] Strategy two: In response to the temperature difference being greater than or equal to the second preset temperature difference threshold and less than the first preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to the first control algorithm.

[0073] Among them, the first preset temperature difference threshold is greater than the second preset temperature difference threshold.

[0074] In a possible implementation manner, when the temperature difference is greater than or equal to the second preset temperature difference threshold and less than the first preset temperature difference threshold, it can be considered that the temperature difference is in the second gear, which indicates that the indoor temperature of the current refrigerator is gradually approaching the target temperature. At this time, on the one hand, it is necessary to accelerate the temperature adjustment speed and reduce the temperature fluctuation range, and on the other hand, it is also necessary to reduce the adjustment error to prevent the occurrence of temperature overshoot. Therefore, when the temperature difference is greater than or equal to the second preset temperature difference threshold and less than the first preset temperature difference threshold, a relatively gentle control method can be adopted, that is, the refrigerator can be controlled to refrigerate according to the first control algorithm, while ensuring the adjustment speed, preventing temperature overshoot.

[0075] Among them, the first control algorithm can, for example, include a PD (Proportional-Differential) control algorithm. The PD control algorithm is a feedback control algorithm that can adjust the temperature control parameters according to the proportion of the current temperature difference and the rate of change of the difference, so that the refrigerator can quickly reach and stably maintain the target temperature, reduce temperature fluctuations, improve the refrigeration efficiency and temperature control accuracy, and extend the service life of the refrigerator. Moreover, the PD control has a fast response speed and is suitable for scenarios with requirements for rapid refrigeration. Therefore, in this scenario, when the temperature difference is in the second gear, the temperature control parameters of the refrigerator can be accurately determined through the PD control algorithm, so that the indoor temperature of the refrigerator can quickly reach the target temperature.

[0076] Similarly, considering the influence of the ambient temperature of the refrigerator on the indoor temperature, different first algorithm parameters corresponding to the first control algorithm can also be set for different ambient temperatures. In the prior art, the most important problem of traditional control algorithms is the algorithm parameter tuning. Once the tuning calculation is completed, the algorithm parameters in the entire control process are fixed and unchanged. Even if the algorithm parameters are adjusted well, the same set of parameters cannot fully adapt to the entire operation process. Therefore, in this embodiment, not only multiple temperature control strategies are provided to adapt to different working conditions, but also the algorithm parameters in different stages can be independently tuned according to the ambient temperature of the refrigerator. When the working conditions and ambient temperature change, the algorithm parameters can be adjusted in time, so that the refrigeration power required by the refrigerator under each different ambient temperature can be accurately estimated, thereby improving the efficiency of temperature adjustment.

[0077] Exemplarily, the first algorithm parameter corresponding to the first control algorithm can be determined according to the ambient temperature. Among them, the ambient temperature can be divided into multiple temperature ranges, such as Th ≤ 13°C, 13°C < Th ≤ 20°C, 20°C < Th ≤ 28°C, 28°C < Th ≤ 35°C, 35°C < Th ≤ 40°C, Th > 40°C, where Th is the ambient temperature, and different first algorithm parameters correspond to different temperature ranges. In this way, the temperature control parameter can be determined according to the first control algorithm, the first algorithm parameter, the indoor temperature, and the target temperature. Specifically, the first damper opening corresponding to the refrigerator can be determined first according to the first control algorithm, the first algorithm parameter, the indoor temperature, and the target temperature. For example, the first algorithm parameter includes a differential parameter and a proportional coefficient, and the first control algorithm is a PD control algorithm, and its expression is u(k) = K p e(k) + K d [e(k) - e(k - 1)], where u(k) is the damper opening, k is the sampling sequence number (0, 1, 2,..., n), K p is the proportional coefficient, K d is the differential parameter, e(k) is the deviation value input at the k-th sampling moment, e(k) = r(k) - y(k), r(k) is the target temperature, is the indoor temperature; e(k - 1) is the deviation value input at the (k - 1)-th sampling moment. Substitute the above first algorithm parameter, the indoor temperature, and the target temperature into the first control algorithm expression to calculate the corresponding first damper opening.

[0078] Then, according to the first damper opening, the corresponding first fan speed is determined. For example, the first fan speed corresponding to the first damper opening can be determined according to the second preset correspondence. Among them, the second preset correspondence can include the correspondence between the damper opening and the fan speed. When the temperature control parameter includes the target damper opening and the target fan speed, the first damper opening can be used as the target damper opening, and the first fan speed can be used as the target fan speed.

[0079] When the temperature control strategy includes controlling the refrigerator to refrigerate according to the first control algorithm, the first algorithm parameter corresponding to the first control algorithm can be dynamically determined according to the ambient temperature of the refrigerator. Since the ambient temperature directly reflects the change of the real-time heat load of the refrigerator, that is, it reflects the difference in the current refrigeration demand. Even under the same control algorithm framework, the change of the heat load characteristics caused by different ambient temperatures will significantly affect the temperature regulation efficiency. Therefore, in order to achieve efficient temperature regulation, the first algorithm parameter of the current first control algorithm can be accurately matched through the ambient temperature. In this way, when the ambient temperature fluctuates, the adaptive adjustment of the parameters can be quickly realized, so as to achieve the accurate matching and efficient regulation of the temperature control parameters in the whole process of the refrigerator operation. Based on the first control algorithm, the first algorithm parameter, the indoor temperature and the target temperature, the first air damper opening of the refrigerator is calculated, and then the corresponding first fan speed is determined through the first air damper opening, and the temperature control parameter of the refrigerator is determined based on the first air damper opening and the first fan speed, so that the indoor temperature of the refrigerator can quickly approach the target temperature and achieve efficient temperature regulation.

[0080] Strategy three: In response to the temperature difference being less than the second preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to the second control algorithm.

[0081] In a possible implementation manner, when the temperature difference is less than the second preset temperature difference threshold, it can be considered that the temperature difference is in the third gear, which indicates that the indoor temperature of the current refrigerator is closer to the target temperature. At this time, it is necessary to improve the temperature regulation accuracy, eliminate the steady-state error of the system, and avoid the phenomenon of temperature overshoot. Therefore, when the temperature difference is less than the second preset temperature difference threshold, a more reliable control method can be adopted, that is, the refrigerator can be controlled to refrigerate according to the second control algorithm, which can effectively eliminate the steady-state error of the system and improve the temperature control accuracy.

[0082] Among them, the second control algorithm can include, for example, the PID (Proportion-Integral-Differential) control algorithm. The PID control algorithm is a feedback control algorithm that combines the control actions of proportion (P), integral (I), and differential (D). The proportion is adjusted according to the current temperature difference. The larger the temperature difference, the greater the adjustment force; the integral eliminates the cumulative error; the differential adjusts in advance according to the change rate of the temperature difference to prevent temperature overshoot. The PID control algorithm adds an integral link on the basis of the PD control algorithm, which can eliminate the steady-state error and make the temperature control more accurate. In the field of refrigerator control, the PID control can make the indoor temperature of the refrigerator more stable and closer to the target temperature, especially when the environment is complex or the temperature accuracy requirements are high.

[0083] Similarly, considering the impact of the ambient temperature of the refrigerator on the indoor temperature, different second algorithm parameters corresponding to the second control algorithm can also be set for different ambient temperatures. In this way, in this embodiment, not only are multiple temperature control strategies provided to adapt to different working conditions, but also the algorithm parameters for different stages can be independently tuned according to the ambient temperature of the refrigerator. When the working conditions and ambient temperature change, the algorithm parameters can be adjusted in a timely manner, so that the refrigeration power required by the refrigerator at each different ambient temperature can be accurately estimated, thereby improving the efficiency of temperature adjustment.

[0084] Exemplarily, the second algorithm parameters corresponding to the second control algorithm can be determined according to the ambient temperature. Similarly, the ambient temperature can be divided into multiple temperature intervals, and different temperature intervals correspond to different second algorithm parameters. In this way, the temperature control parameters can be determined according to the second control algorithm, the second algorithm parameters, the indoor temperature, and the target temperature. Specifically, the second damper opening corresponding to the refrigerator can be determined first according to the second control algorithm, the second algorithm parameters, the indoor temperature, and the target temperature. Then, according to the second damper opening, the corresponding second fan speed is determined. For example, the second fan speed corresponding to the second damper opening can be determined according to a third preset correspondence relationship. The third preset correspondence relationship can include the correspondence relationship between the damper opening and the fan speed. When the temperature control parameters include the target damper opening and the target fan speed, the second damper opening can be used as the target damper opening, and the second fan speed can be used as the target fan speed.

[0085] As Figure 2 shown, a schematic block diagram of a PID control process is provided. Wherein, r represents the target temperature, y represents the indoor temperature, e represents the temperature difference between the target temperature and the indoor temperature, and u represents the control signal, that is, the damper opening. The target temperature r represents the desired temperature value of the refrigerator. The actual indoor temperature y detected by the temperature sensor is fed back, and the two are compared at the summing node ∑ to obtain the deviation value, that is, the temperature difference . The deviation value e is input to the PID controller, which performs comprehensive operations according to the proportional, integral, and differential links and outputs the control signal u. The control signal u is first used to adjust the damper opening (that is, Figure 2 the damper angle in), and then the fan speed is adjusted through pulse width modulation (PWM) technology to change the air flow and refrigeration capacity in the refrigerator. After that, the temperature sensor continuously detects the temperature, and the new actual indoor temperature y is fed back and compared with the target temperature r again, and the cycle continues, making the indoor temperature of the refrigerator approach the target temperature.

[0086] Thus, the relationship between e(t) and u(t) can be obtained:

[0087] where u(t) is the damper opening, K p is the proportionality coefficient, Ki is the integral coefficient, K d is the differential parameter, and e(t) is the deviation value input at sampling time t.

[0088] Since the computer is sampling control, it can only calculate the control quantity based on the deviation value at the sampling time point. Therefore, it is necessary to discretize the above formula. Substituting the sampling time point kT (k = 0, 1, 2,..., n) for the continuous time t, replacing the integral with a sum, and replacing the differential with an increment, the following approximate transformation can be made:

[0089] Substituting this expression into the above expression of u(t), the discrete PID expression can be obtained:

[0090] where T is the sampling period, k is the sampling sequence number (0, 1, 2,..., n); e(k) is the deviation value input at the k-th sampling time, that is, the temperature difference between the target temperature and the indoor temperature, e(k)=r(k)-y(k); e(k - 1) is the deviation value input at the (k - 1)-th sampling time, that is, the temperature difference between the target temperature and the indoor temperature at the previous moment; u(k) is the control signal at the k-th sampling time, that is, the damper opening, K p is the proportionality coefficient, K i is the integral coefficient, K d is the differential parameter.

[0091] After obtaining the expression of the PID control algorithm, the above second algorithm parameters (that is, including the proportionality coefficient, integral coefficient, and differential parameter), indoor temperature, and target temperature can be substituted into the expression of the PID control algorithm to calculate the corresponding second damper opening.

[0092] When the temperature control strategy includes controlling the refrigerator to refrigerate according to the second control algorithm, the second algorithm parameters corresponding to the second control algorithm can be further dynamically determined according to the ambient temperature of the refrigerator. Since the ambient temperature directly reflects the change of the real-time heat load of the refrigerator, that is, reflects the difference in the current refrigeration demand, even within the framework of the same control algorithm, the change of the heat load characteristics caused by different ambient temperatures will significantly affect the temperature regulation efficiency. Therefore, in order to achieve efficient temperature regulation, the second algorithm parameters of the current second control algorithm can be accurately matched through the ambient temperature. In this way, in the case of fluctuations in the ambient temperature, the adaptive adjustment of the parameters can be quickly realized, so as to achieve the accurate matching and efficient regulation of the temperature control parameters during the whole operation process of the refrigerator. Based on the second control algorithm, the second algorithm parameters, the indoor temperature and the target temperature, the second damper opening of the refrigerator is calculated, and then the corresponding second fan speed is determined through the second damper opening, and the temperature control parameters of the refrigerator are determined based on the second damper opening and the second fan speed, so that the indoor temperature of the refrigerator can quickly approach the target temperature and achieve efficient temperature regulation.

[0093] In some embodiments, considering that in the actual scenario, even if the refrigerator is controlled to operate through the various control strategies provided in this embodiment, there may still be a phenomenon of temperature overshoot. Therefore, in order to eliminate the influence of the temperature regulation deviation and prevent the system from acting frequently and generating a large lag, it is also possible to control the damper and the fan of the refrigerator to stop operating in response to the temperature difference being less than the third preset temperature difference threshold. Wherein, the third preset temperature difference threshold is less than the second preset temperature difference threshold.

[0094] Exemplarily, the third preset temperature difference threshold can be zero or a negative number, that is, when the indoor temperature of the refrigerator reaches the target temperature or is already lower than the target temperature, the damper and the fan of the refrigerator can be timely controlled to stop operating to prevent a large lag from causing the indoor temperature of the refrigerator to deviate from the target temperature.

[0095] In some other embodiments, when the damper and the fan of the refrigerator are controlled to stop operating, the indoor temperature and the target temperature corresponding to the target compartment of the refrigerator are re-obtained. If the temperature difference between the re-obtained indoor temperature and the target temperature is greater than or equal to the fourth preset temperature difference threshold, then return to the step of determining the temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature to the step of controlling the refrigerator to operate according to the temperature control parameters, so that the target compartment reaches the target temperature; wherein, the fourth preset temperature difference threshold is less than the second preset temperature difference threshold and greater than the third preset temperature difference threshold.

[0096] When the damper and the fan of the refrigerator are controlled to stop running, if it is further detected that the temperature difference between the indoor temperature and the target temperature of the refrigerator is greater than or equal to the fourth preset temperature difference threshold, that is, the temperature difference becomes larger again, it indicates that the temperature of the refrigerator needs to be further regulated at this time. At this time, the temperature control step can be returned, the temperature control parameters of the refrigerator are re-determined, and the refrigerator is controlled to operate so that the target compartment of the refrigerator reaches the target temperature. At the same time, setting the fourth preset temperature difference threshold to be greater than the third preset temperature difference threshold can effectively avoid the temperature difference from fluctuating back and forth near the third preset temperature difference threshold and prevent the system from operating frequently.

[0097] Adopting the above method, according to the indoor temperature and the target temperature of the target compartment of the refrigerator, the temperature control strategy of the refrigerator is dynamically selected, and the effect of adjusting the temperature control strategy of the refrigerator in real time according to the working conditions of the refrigerator can be achieved. Furthermore, combining the temperature control strategy with the ambient temperature, the temperature control parameters of the refrigerator are accurately determined to drive the refrigerator to operate. In this way, when the working conditions of the refrigerator change, the temperature control parameters of the refrigerator can be quickly adjusted to ensure the temperature control effect and achieve precise temperature control throughout the operation process of the refrigerator.

[0098] Figure 3 is a temperature control algorithm block diagram shown according to an exemplary embodiment, as Figure 3 shown, U represents the damper opening, and the range is the damper opening angle 0~90°, and FAN is the fan speed. By pre-setting a two-dimensional grid (Grid) control model, the operating state of the refrigerator is divided into multiple working conditions, and different control strategies are applied to different grids. Among them, the vertical axis is the ambient temperature Th of the refrigerator, which can be divided into multiple temperature intervals, that is, Th≤13°C, 13°C<Th≤20°C, 20°C<Th≤28°C, 28°C<Th≤35°C, 35°C<Th≤40°C, 40°C<Th≤45°C, Th>45°C. The ambient temperature corresponds to the heat load. The higher the ambient temperature, the greater the heat load of the refrigerator and the greater the required refrigeration power. Through horizontal division, the required refrigeration power in each grid can be accurately estimated, and the control strategy can be adjusted as needed to achieve precise temperature control. The horizontal axis is the temperature difference between the target temperature and the indoor temperature, which is divided into the upper limit of the hysteresis zone (Hystersis High, that is, the first preset temperature difference threshold), the lower limit of the hysteresis zone (Hystersis Low, that is, the second preset temperature difference threshold), the upper limit of the dead zone (DeadBand High, that is, the fourth preset temperature difference threshold), and the lower limit of the dead zone (DeadBand Low, that is, the third preset temperature difference threshold). The greater the temperature difference between the target temperature and the indoor temperature, the greater the required refrigeration capacity. Through vertical division, the maximum cooling capacity can be set according to the heat load under different ambient temperatures, so as to determine the corresponding fan speed.

[0099] Above the upper limit of the hysteresis zone: It indicates that the deviation between the current indoor temperature and the target temperature is large, and overshoot is not likely to occur. It can be controlled according to the maximum cooling capacity (i.e., the specified control parameter). Moreover, different specified control parameters can be divided according to different ambient temperatures, namely corresponding to Figure 3 the grid 0 (U = Pa_Max, FAN = Ra_Max), grid 5 (U = Pb_Max, FAN = Rb_Max), grid 10 (U = Pc_Max, FAN = Rc_Max), grid 15 (U = Pd_Max, FAN = Rd_Max), grid 20 (U = Pe_Max, FAN = Re_Max), and grid 25 (U = Pf_Max, FAN = Rf_Max) in

[0100] Above the lower limit and below the upper limit of the hysteresis zone: It indicates that the deviation between the indoor temperature and the target temperature is still large. At this time, the PD (Proportional-Differential) control algorithm can be introduced to accelerate the adjustment speed, reduce the error, lower the temperature fluctuation amplitude, and prevent system overshoot. Moreover, different specified control parameters can be divided according to different ambient temperatures, namely corresponding to Figure 3 the grid 1 (U = Pda, FAN = Ra_High), grid 6 (U = PDb, FAN = Rb_High), grid 11 (U = PDc, FAN = Rc_High), grid 16 (U = PDd, FAN = Rd_High), grid 21 (U = Pde, FAN = Re_High), and grid 26 (U = PDf, FAN = Rf_High) in

[0101] Below the lower limit of the hysteresis zone: It indicates that the indoor temperature is already relatively close to the target temperature at this time. To avoid overshoot, the PID algorithm control can be introduced at this time to eliminate the steady-state error of the system, improve the control accuracy and stability. Moreover, different specified control parameters can be divided according to different ambient temperatures, namely corresponding to Figure 3 the grid 2 (U = PIDa, FAN = Ra_Low), grid 7 (U = PIDb, FAN = Rb_Low), grid 12 (U = PIDc, FAN = Rc_Low), grid 17 (U = PIDd, FAN = Rd_Low), grid 22 (U = PIDe, FAN = Re_Low), and grid 27 (U = PIDf, FAN = Rf_Low) in. And when the temperature difference continues to decrease and is greater than the lower limit of the dead zone, the refrigerator operation is still controlled according to the PID control algorithm, that is, it also includes grid 3, grid 8, grid 13, grid 18, grid 23, and grid 28, and the corresponding control strategy is PID control.

[0102] If the temperature difference between the target temperature and the indoor temperature continues to decrease and is lower than the lower limit of the dead zone: it indicates that overshoot has occurred at this time. To avoid frequent operation switching of the system, the fan and damper can be controlled to stop working, that is, corresponding to Figure 3 the grid 4 (U=OFF, FAN=OFF), grid 9 (U=OFF, FAN=OFF), grid 14 (U=OFF, FAN=OFF), grid 19 (U=OFF, FAN=OFF), grid 24 (U=OFF, FAN=OFF) and grid 29 (U=OFF, FAN=OFF) in

[0103] After controlling the fan and damper to stop working, if it is detected that the temperature difference between the target temperature and the indoor temperature continues to increase and is greater than the upper limit of the dead zone (after controlling the fan and damper to stop working, if it is detected that the temperature difference is between the upper limit and the lower limit of the dead zone, the current state of the fan and damper stopping working is still maintained, that is, the control strategies corresponding to grid 3, grid 8, grid 13, grid 18, grid 23 and grid 28 are the parts with U=OFF, FAN=OFF): it indicates that the temperature difference has become larger again at this time, indicating that the temperature of the refrigerator needs to be further regulated. Specifically, the corresponding control strategy can be determined according to the temperature interval range of different temperature differences and the ambient temperature.

[0104] In this embodiment, by setting the dead zone, the sensitivity of the system to small disturbances can be reduced, and the actuator can be prevented from operating frequently due to small input changes, thereby reducing mechanical wear and energy consumption.

[0105] On the one hand, the two-dimensional grid control model divides the system working conditions into segments, and each grid is independently tuned for parameters, reducing the difficulty of parameter tuning. And after the working conditions change, the control strategy and parameters can be adjusted in time, and finally accurate and rapid temperature control in the whole control domain can be realized.

[0106] On the other hand, the two-dimensional grid control model realizes visualization and parametric design, separates development and debugging. System debugging can be carried out by the host computer sending parameters, and the code does not need to be modified frequently. The two-dimensional grid control model replaces the state machine model in the related technology, greatly reducing the complexity of program development and testing, while reducing the difficulty of parameter tuning, accelerating project implementation and ensuring the reliability of the software.

[0107] By adopting the above method, according to the indoor temperature and the target temperature of the target compartment of the refrigerator, the temperature control strategy of the refrigerator is dynamically selected, and the effect of adjusting the temperature control strategy of the refrigerator according to the working conditions of the refrigerator in real time can be achieved. Furthermore, by combining the temperature control strategy with the ambient temperature, the temperature control parameters of the refrigerator are accurately determined to drive the operation of the refrigerator. In this way, when the working conditions of the refrigerator change, the temperature control parameters of the refrigerator can be quickly adjusted to ensure the temperature control effect and achieve precise temperature control throughout the operation process of the refrigerator.

[0108] Figure 4 It is a block diagram of a control device of a refrigerator shown according to an exemplary embodiment. As Figure 4 shown, the device 200 includes: An acquisition module 201, configured to acquire the indoor temperature and the target temperature corresponding to the target compartment of the refrigerator; A first determination module 202, configured to determine the temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature; A second determination module 203, configured to determine the temperature control parameters corresponding to the refrigerator based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located; A control module 204, configured to control the operation of the refrigerator according to the temperature control parameters so that the target compartment reaches the target temperature.

[0109] In some possible implementation manners, the first determination module 202 is configured to determine the temperature control strategy according to the temperature difference between the target temperature and the indoor temperature.

[0110] In some possible implementation manners, the first determination module 202 is configured to, in response to the temperature difference being greater than or equal to a first preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to specified control parameters; or, in response to the temperature difference being greater than or equal to a second preset temperature difference threshold and less than the first preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to a first control algorithm; or, in response to the temperature difference being less than the second preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to a second control algorithm; wherein, the first preset temperature difference threshold is greater than the second preset temperature difference threshold.

[0111] In some possible implementation manners, the temperature control strategy includes controlling the refrigerator to refrigerate according to specified control parameters, and the second determination module 203 is configured to determine the specified control parameter corresponding to the ambient temperature according to a first preset correspondence; and use the specified control parameter as the temperature control parameter.

[0112] In some possible embodiments, the specified control parameters include a specified damper opening and a specified fan speed; the first preset correspondence includes the correspondence among the ambient temperature, the damper opening, and the fan speed; the temperature control parameters include a target damper opening and a target fan speed, and the second determination module 203 is configured to use the specified damper opening as the target damper opening; and use the specified fan speed as the target fan speed.

[0113] In some possible embodiments, the temperature control strategy includes controlling the refrigerator to refrigerate according to a first control algorithm, and the second determination module 203 is configured to determine a first algorithm parameter corresponding to the first control algorithm according to the ambient temperature; and determine the temperature control parameters according to the first control algorithm, the first algorithm parameter, the indoor temperature, and the target temperature.

[0114] In some possible embodiments, the temperature control parameters include a target damper opening and a target fan speed, and the second determination module 203 is configured to determine a first damper opening corresponding to the refrigerator according to the first control algorithm, the first algorithm parameter, the indoor temperature, and the target temperature; determine a corresponding first fan speed according to the first damper opening; use the first damper opening as the target damper opening, and use the first fan speed as the target fan speed.

[0115] In some possible embodiments, the temperature control strategy includes controlling the refrigerator to refrigerate according to a second control algorithm, and the second determination module 203 is configured to determine a second algorithm parameter corresponding to the second control algorithm according to the ambient temperature; and determine the temperature control parameters according to the second control algorithm, the second algorithm parameter, the indoor temperature, and the target temperature.

[0116] In some possible embodiments, the temperature control parameters include a target damper opening and a target fan speed, and the second determination module 203 is configured to determine a second damper opening corresponding to the refrigerator according to the second control algorithm, the second algorithm parameter, the indoor temperature, and the target temperature; determine a corresponding second fan speed according to the second damper opening; use the second damper opening as the target damper opening, and use the second fan speed as the target fan speed.

[0117] In some possible embodiments, the control module 204 is further configured to control the damper and the fan of the refrigerator to stop operating in response to the temperature difference being less than a third preset temperature difference threshold; wherein the third preset temperature difference threshold is less than the second preset temperature difference threshold.

[0118] In some possible embodiments, the control module 204 is further configured to, when the air damper and the blower of the refrigerator are controlled to stop operating, re-acquire the indoor temperature and the target temperature corresponding to the target compartment of the refrigerator. If the temperature difference between the re-acquired indoor temperature and the target temperature is greater than or equal to a fourth preset temperature difference threshold, return to the step of determining the temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature to the step of controlling the operation of the refrigerator according to the temperature control parameters so that the target compartment reaches the target temperature; wherein the fourth preset temperature difference threshold is less than the second preset temperature difference threshold and greater than the third preset temperature difference threshold.

[0119] In some possible embodiments, the temperature control parameters include a target air damper opening and a target blower speed. The control module 204 is configured to adjust the air damper opening of the refrigerator according to the target air damper opening; and adjust the blower speed of the refrigerator according to the target blower speed.

[0120] By using the above device, dynamically selecting the temperature control strategy of the refrigerator according to the indoor temperature and the target temperature of the target compartment of the refrigerator can achieve the effect of adjusting the temperature control strategy of the refrigerator in real time according to the working conditions of the refrigerator. Furthermore, by combining the temperature control strategy with the ambient temperature, accurately determining the temperature control parameters of the refrigerator and driving the operation of the refrigerator. In this way, when the working conditions of the refrigerator change, the temperature control parameters of the refrigerator can be quickly adjusted to ensure the temperature control effect and achieve accurate temperature control throughout the operation process of the refrigerator.

[0121] Regarding the device in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated herein.

[0122] The present disclosure also provides a computer-readable storage medium, on which computer program instructions are stored. When the program instructions are executed by a processor, the steps of the control method of the refrigerator provided by the present disclosure are implemented.

[0123] Figure 5 FIG. is a block diagram of an electronic device 300 shown according to an exemplary embodiment. For example, the electronic device 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0124] Refer to Figure 5 , the electronic device 300 may include one or more of the following components: a processing component 302, a memory 304, a power component 306, a multimedia component 308, an audio component 310, an input / output interface 312, a sensor component 314, and a communication component 316.

[0125] The processing component 302 generally controls the overall operation of the electronic device 300, such as operations associated with display, telephone calls, data communication, camera operations, and recording operations. The processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the above-described control method of the refrigerator. In addition, the processing component 302 may include one or more modules to facilitate the interaction between the processing component 302 and other components. For example, the processing component 302 may include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.

[0126] The memory 304 is configured to store various types of data to support the operation of the electronic device 300. Examples of such data include instructions for any application or method operating on the electronic device 300, contact data, phone book data, messages, pictures, videos, etc. The memory 304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0127] The power component 306 provides power to various components of the electronic device 300. The power component 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 300.

[0128] The multimedia component 308 includes a screen that provides an output interface between the electronic device 300 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can not only sense the boundaries of the touch or swipe actions, but also detect the duration and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component 308 includes a front camera and / or a rear camera. When the electronic device 300 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front camera and the rear camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.

[0129] The audio component 310 is configured to output and / or input audio signals. For example, the audio component 310 includes a microphone (MIC) that is configured to receive external audio signals when the electronic device 300 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 304 or transmitted via the communication component 316. In some embodiments, the audio component 310 further includes a speaker for outputting audio signals.

[0130] The input / output interface 312 provides an interface between the processing component 302 and a peripheral interface module, and the peripheral interface module may be a keyboard, a click wheel, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a power button, and a lock button.

[0131] The sensor component 314 includes one or more sensors for providing status assessments of various aspects of the electronic device 300. For example, the sensor component 314 can detect the on / off state of the electronic device 300, the relative positioning of components, such as the display and keypad of the electronic device 300. The sensor component 314 can also detect a change in the position of the electronic device 300 or a component of the electronic device 300, the presence or absence of user contact with the electronic device 300, the orientation or acceleration / deceleration of the electronic device 300, and the temperature change of the electronic device 300. The sensor component 314 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 314 may further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0132] The communication component 316 is configured to facilitate communication between the electronic device 300 and other devices in a wired or wireless manner. The electronic device 300 can access a wireless network based on communication standards, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 316 further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0133] In an exemplary embodiment, the electronic device 300 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components, and is used to execute the control method of the refrigerator described above.

[0134] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is further provided, such as a memory 304 including instructions. The above instructions can be executed by a processor 320 of the electronic device 300 to complete the control method of the refrigerator described above. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0135] In another exemplary embodiment, a computer program product is further provided. The computer program product includes a computer program capable of being executed by a programmable device. The computer program has a code part for executing the control method of the refrigerator described above when executed by the programmable device.

[0136] Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of the two. Whether such a function is implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can use various methods to implement the described function for each specific application, but such implementation should not be construed as exceeding the scope protected by the embodiments of the present application.

[0137] Figure 6 is a block diagram of a refrigerator 400 shown according to an exemplary embodiment, as Figure 6 shown, the refrigerator 400 includes Figure 5 the provided electronic device 300.

[0138] In addition, the term "above" as used herein with respect to a component, element, or layer of material formed "above" or located "above" a surface can be used to mean that the component, element, or layer of material is "indirectly" positioned (e.g., placed, formed, deposited, etc.) on the surface such that one or more additional components, elements, or layers are disposed between the surface and the component, element, or layer of material. However, the term "above" as used herein with respect to a component, element, or layer of material formed "above" or located "above" a surface can also optionally have a specific meaning: the component, element, or layer of material is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, e.g., in direct contact with the surface.

[0139] In addition, the term "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as advantageous over other aspects or designs. Rather, the use of the term exemplary is intended to present concepts in a concrete fashion.

[0140] Likewise, although the present disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding the specification and drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. Specifically with respect to the various functions performed by the components (e.g., elements, resources, etc.) described above, unless otherwise indicated, the terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if not structurally equivalent to the disclosed structure. Additionally, although a particular feature of the present disclosure may have been disclosed with respect to only one of several implementations, such feature may, as may be desired and advantageous for any given or particular application, be combined with one or more other features of the other implementations. Further, with respect to the use of "comprising", "having", "including", "contains", or variants thereof in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term "including".

[0141] Other embodiments of the present disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known art or conventional techniques in the art that are not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are pointed out by the appended claims.

[0142] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A control method for a refrigerator, characterized in that, The method includes: Obtaining the indoor temperature and the target temperature corresponding to the target compartment of the refrigerator; Determining a temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature; Determining temperature control parameters corresponding to the refrigerator based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located; Controlling the operation of the refrigerator according to the temperature control parameters so that the target compartment reaches the target temperature.

2. The method according to claim 1, wherein The determining of the temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature includes: Determining the temperature control strategy according to the temperature difference between the target temperature and the indoor temperature.

3. The method according to claim 2, characterized in that, The determining of the temperature control strategy according to the temperature difference between the target temperature and the indoor temperature includes: In response to the temperature difference being greater than or equal to a first preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to specified control parameters; or, In response to the temperature difference being greater than or equal to a second preset temperature difference threshold and less than the first preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to a first control algorithm; or, In response to the temperature difference being less than the second preset temperature difference threshold, the temperature control strategy includes controlling the refrigerator to refrigerate according to a second control algorithm; Wherein, the first preset temperature difference threshold is greater than the second preset temperature difference threshold.

4. The method according to claim 1, wherein The temperature control strategy includes controlling the refrigerator to refrigerate according to specified control parameters. The determining of the temperature control parameters corresponding to the refrigerator based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located includes: Determining the specified control parameter corresponding to the ambient temperature according to a first preset correspondence; Taking the specified control parameter as the temperature control parameter.

5. The method according to claim 4, wherein The specified control parameters include a specified air damper opening and a specified fan speed; the first preset correspondence includes the correspondence among the ambient temperature, the air damper opening, and the fan speed; The temperature control parameters include a target air damper opening and a target fan speed. The taking of the specified control parameter as the temperature control parameter includes: Taking the specified air damper opening as the target air damper opening; Taking the specified fan speed as the target fan speed.

6. The method according to claim 1, wherein The temperature control strategy includes controlling the refrigerator to refrigerate according to a first control algorithm. The determining of the temperature control parameters corresponding to the refrigerator based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located includes: Determining a first algorithm parameter corresponding to the first control algorithm according to the ambient temperature; Determining the temperature control parameters according to the first control algorithm, the first algorithm parameter, the indoor temperature, and the target temperature.

7. The method according to claim 6, wherein The temperature control parameters include a target air damper opening and a target fan speed. The determining of the temperature control parameters according to the first control algorithm, the first algorithm parameter, the indoor temperature, and the target temperature includes: Determining a first air damper opening corresponding to the refrigerator according to the first control algorithm, the first algorithm parameter, the indoor temperature, and the target temperature; Determining the corresponding first fan speed according to the first air damper opening; Take the first air damper opening as the target air damper opening and take the first fan speed as the target fan speed.

8. The method according to claim 1, characterized in that The temperature control strategy includes controlling the refrigerator to refrigerate according to a second control algorithm. Based on the temperature control strategy and the ambient temperature of the environment where the refrigerator is located, determining the temperature control parameters corresponding to the refrigerator includes: Determine the second algorithm parameters corresponding to the second control algorithm according to the ambient temperature; Determine the temperature control parameters according to the second control algorithm, the second algorithm parameters, the indoor temperature, and the target temperature.

9. The method according to claim 8, wherein The temperature control parameters include a target air damper opening and a target fan speed. Determining the temperature control parameters according to the second control algorithm, the second algorithm parameters, the indoor temperature, and the target temperature includes: Determine the second air damper opening corresponding to the refrigerator according to the second control algorithm, the second algorithm parameters, the indoor temperature, and the target temperature; Determine the corresponding second fan speed according to the second air damper opening; Take the second air damper opening as the target air damper opening and take the second fan speed as the target fan speed.

10. The method according to claim 3, wherein The method further includes: In response to the temperature difference being less than a third preset temperature difference threshold, control the air damper and the fan of the refrigerator to stop operating; Wherein, the third preset temperature difference threshold is less than the second preset temperature difference threshold.

11. The method according to claim 10, wherein, The method further includes: When the air damper and the fan of the refrigerator are controlled to stop operating, re-acquire the indoor temperature and the target temperature corresponding to the target compartment of the refrigerator. If the temperature difference between the re-acquired indoor temperature and the target temperature is greater than or equal to a fourth preset temperature difference threshold, then return to the step of determining the temperature control strategy corresponding to the refrigerator according to the indoor temperature and the target temperature to the step of controlling the refrigerator to operate according to the temperature control parameters so that the target compartment reaches the target temperature; Wherein, the fourth preset temperature difference threshold is less than the second preset temperature difference threshold and greater than the third preset temperature difference threshold.

12. The method according to any one of claims 1 to 11, characterized in that, The temperature control parameters include a target air damper opening and a target fan speed. Controlling the refrigerator to operate according to the temperature control parameters includes: Adjust the air damper opening of the refrigerator according to the target air damper opening; Adjust the fan speed of the refrigerator according to the target fan speed.

13. A control device for a refrigerator, characterized in that, The control device of the refrigerator is used to implement the control method of the refrigerator according to any one of claims 1 to 12.

14. An electronic device, characterized in that, It includes: A processor; A memory for storing instructions executable by the processor; Wherein, the processor is configured to implement the steps of the method according to any one of claims 1 to 12 when calling the executable instructions stored on the memory.

15. A refrigerator, characterized in that, It includes the electronic device according to claim 14 above.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 12.

17. A computer program product, characterized in that, It includes a computer program, and when the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 12.

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