Control method and control device of refrigerator, refrigerator and storage medium

Abstract

The application provides a refrigerator control method, a control device, a refrigerator and a storage medium, the control method comprising: acquiring a working state of the refrigerator; determining a fresh-keeping performance parameter of the refrigerator according to the working state; and displaying the fresh-keeping performance parameter through a display module of the refrigerator and / or sending the fresh-keeping performance parameter to a user terminal to prompt the user. The application provides a refrigerator control method, a control device, a refrigerator and a storage medium, which can intuitively and real-timely display the fresh-keeping capacity of the refrigerator, and facilitate the user.

Description

Technical Field

[0001] This invention relates to the field of refrigerator technology, and more particularly to a refrigerator control method, control device, refrigerator, and storage medium. Background Technology

[0002] As people's living standards improve, the convenience of home appliances is receiving increasing attention, and the demand for their intelligent features is also rising. Refrigerators, as the mainstay of food preservation in the home, rely heavily on their preservation performance parameters as crucial indicators of their quality. When a refrigerator's preservation capacity declines and food inside is not handled promptly, it can spoil. However, due to limited knowledge about refrigerators, users often lack the understanding of how to determine their refrigerator's current preservation capacity, making it difficult to assess the freshness of food and impacting user experience. Therefore, providing a convenient way for users to determine the real-time preservation capacity of their refrigerator has become a pressing issue. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a refrigerator control method, control device, refrigerator, and storage medium, which can intuitively and in real-time display the refrigerator's preservation capabilities, making it convenient for users.

[0004] In a first aspect, embodiments of the present invention provide a refrigerator control method, the control method comprising:

[0005] The working status of the refrigerator is obtained, and the preservation performance parameters of the refrigerator are determined based on the working status.

[0006] The refrigerator's display module displays the preservation performance parameters and / or sends the preservation performance parameters to the user terminal to prompt the user.

[0007] The control method provided by the embodiments of the present invention has at least the following beneficial effects: Since the working state of the refrigerator changes the food storage environment, thereby affecting the freshness of the food, the working state of the refrigerator is a key factor affecting the preservation of food inside the refrigerator. Therefore, the current preservation capacity of the refrigerator can be analyzed using the working state to obtain preservation performance parameters. After obtaining the preservation performance parameters characterizing the refrigerator's preservation capacity, these parameters can be displayed through the refrigerator's display module or sent to the user's terminal to promptly alert the user. This allows the user to more intuitively understand the current preservation capacity of the refrigerator, facilitating user operation.

[0008] In the above control method, acquiring the working state of the refrigerator and determining the preservation performance parameters of the refrigerator based on the working state includes:

[0009] The sensor module acquires the first environmental parameters within the food storage area of ​​the refrigerator.

[0010] After a preset time period of acquiring the first environmental parameter, the second environmental parameter in the food storage area is acquired through the sensor module, and the cleanliness in the food storage area is acquired through the odor sensor.

[0011] The preservation performance parameters of the refrigerator are determined based on the cleanliness level and the difference between the first environmental parameter and the second environmental parameter.

[0012] By utilizing sensor modules to measure environmental parameters of the food storage environment inside the refrigerator in real time at different times, the difference between two environmental parameters before and after a preset time period can be used to determine the changes in the environmental state of the food storage environment within the refrigerator over that preset time period. Additionally, an odor sensor obtains the current cleanliness level, i.e., the odor state of the food storage environment inside the refrigerator at that moment, allowing for the determination of the current storage condition of the food. Therefore, by combining the current cleanliness level with the changes in environmental state over the preset time period, the refrigerator's preservation performance parameters can be accurately determined at that moment, facilitating user operation.

[0013] In the above control method, determining the preservation performance parameters of the refrigerator based on the cleanliness level and the difference between the first environmental parameter and the second environmental parameter includes:

[0014] Obtain the cleanliness history value from the odor sensor, wherein the cleanliness history value is characterized by the measurement value of the odor sensor during the first environmental parameter detection process;

[0015] The preservation performance parameters of the refrigerator are determined based on the difference between the cleanliness history value and the cleanliness level, and the difference between the first environmental parameter and the second environmental parameter.

[0016] The odor sensor can detect the cleanliness of the current environment in real time. By comparing the cleanliness level detected by the odor sensor a preset time period (i.e., the historical cleanliness value) with the cleanliness level detected at the current moment, the difference in cleanliness before and after the preset time period is obtained, thus determining the change in the refrigerator's odor state before and after the preset time period. Since the changes in the food stored in the refrigerator within the preset time period can reflect the changes in the refrigerator's preservation performance parameters within that time period, combining the changes in odor state and environmental conditions within the preset time period allows for an accurate determination of the refrigerator's preservation performance parameters at the current moment.

[0017] In the above control method, determining the preservation performance parameters of the refrigerator based on the cleanliness level and the difference between the first environmental parameter and the second environmental parameter includes:

[0018] The cleanliness index is obtained based on the preset cleanliness factor and the cleanliness level.

[0019] An environmental index is obtained based on preset environmental factors and the difference between the first environmental parameter and the second environmental parameter;

[0020] The preservation performance parameters are obtained by summing the cleanliness index and the environmental index.

[0021] Since cleanliness and environmental parameters can reflect the preservation performance parameters of a refrigerator to varying degrees, by assigning different weight coefficients to cleanliness and environmental parameters, the corresponding cleanliness index and environmental index can be determined. That is, by combining the preservation performance parameters reflected by cleanliness and the preservation performance parameters reflected by the environmental index, the preservation performance parameters of the refrigerator at the current moment can be accurately determined.

[0022] In the above control method, the first environmental parameter includes a first temperature and a first humidity; the second environmental parameter includes a second temperature and a second humidity.

[0023] The step of obtaining the environmental index based on preset environmental factors and the difference between the first environmental parameter and the second environmental parameter includes:

[0024] The temperature index is obtained based on the preset temperature factor and the difference between the first temperature and the second temperature.

[0025] The humidity index is obtained based on the preset humidity factor and the difference between the first humidity and the second humidity.

[0026] The environmental index is obtained by summing the temperature index and the humidity index.

[0027] Temperature, humidity, and cleanliness are key factors affecting food preservation. Therefore, changes in temperature and humidity inside a refrigerator can be used to evaluate its preservation performance parameters. Temperature and humidity changes reflect these parameters to varying degrees. By using a pre-set temperature factor and the temperature change before and after a preset time, a temperature index is obtained, representing the refrigerator's preservation performance parameters in terms of temperature. Similarly, by using a pre-set humidity factor and the humidity change before and after a preset time, a humidity index is obtained, representing the refrigerator's preservation performance parameters in terms of humidity. Combining the humidity and temperature indices allows for an accurate assessment of the preservation performance parameters reflected by the current internal environment of the refrigerator.

[0028] In the above control method, obtaining the temperature index based on a preset temperature factor and the difference between the first temperature and the second temperature includes:

[0029] The temperature difference is obtained based on the difference between the first temperature and the second temperature;

[0030] The temperature index is obtained based on the proportional relationship between the temperature difference and the first temperature, and a preset temperature factor.

[0031] By analyzing the temperature changes before and after a preset time period and comparing them with the temperature before the preset time period, the trend of temperature change can be determined. Since changes in the refrigerator's preservation performance parameters are directly reflected in the internal temperature changes, by analyzing the magnitude of temperature changes and the preset temperature factor, the internal preservation performance parameters of the refrigerator within the preset time period can be determined more accurately.

[0032] In the above control method, obtaining the humidity index based on a preset humidity factor and the difference between the first humidity and the second humidity includes:

[0033] The humidity difference is obtained based on the difference between the first humidity and the second humidity.

[0034] The humidity index is obtained based on the ratio between the humidity difference and the first humidity, and a preset humidity factor.

[0035] By analyzing the changes in humidity before and after a preset time period, and comparing them with the humidity before the preset time period, the trend of humidity change can be determined. Since changes in the refrigerator's preservation performance parameters are directly reflected in the humidity changes inside the refrigerator, by analyzing the magnitude of humidity changes and the preset humidity factor, the preservation performance parameters inside the refrigerator within the preset time period can be determined more accurately.

[0036] In the above control method, the preset cleanliness factor and the preset environmental factor are obtained by the following steps:

[0037] Obtain the total runtime of the refrigerator;

[0038] The cleaning factor is obtained based on the ratio of the total running time to the preset odor duration.

[0039] The environmental factor is obtained based on the ratio of the total runtime to the preset environmental duration.

[0040] As a refrigerator runs longer, the odor emitted by the food in the storage area becomes relatively limited, leading to a stable odor state within the refrigerator. This makes it difficult to accurately determine the refrigerator's preservation performance parameters based solely on the internal odor state. However, changes in these preservation performance parameters directly affect environmental parameters within the food storage area, such as temperature and / or humidity. Therefore, by adjusting the cleanliness and environmental factors in real time based on the refrigerator's total operating time, it's possible to accurately determine the refrigerator's preservation performance parameters at any given moment by utilizing changes in odor and environmental conditions.

[0041] In the above-described control method, the control method further includes:

[0042] When the preservation performance parameter is lower than the preset abnormal threshold, the new working status of the refrigerator is periodically obtained, and the preservation performance parameter of the refrigerator is updated according to the new working status.

[0043] When the preservation performance parameter is below the preset abnormal threshold for a preset alarm duration, an alarm message for preservation abnormality is issued.

[0044] If the preservation performance parameters are below the preset abnormal threshold, it can be assumed that the refrigerator's current preservation capacity is insufficient to keep the food in the storage area fresh, which will damage the freshness of the food. The user needs to be alerted to take immediate action. To avoid misjudgment affecting user experience, the refrigerator's preservation performance parameters need to be continuously reassessed. If the refrigerator's preservation performance parameters remain below the preset abnormal threshold within the preset alarm duration, it can be assumed that the refrigerator's current preservation capacity is insufficient to keep the food in the storage area fresh. In this case, a preservation abnormality alarm message will be issued, and the user will be notified promptly for timely action.

[0045] In a second aspect, embodiments of the present invention provide an operation control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the control method described in the first aspect embodiment above.

[0046] The operation control device provided by the embodiments of the present invention has at least the following beneficial effects: Since the working state of the refrigerator changes the food storage environment, thereby affecting the freshness of the food, the working state of the refrigerator is a key factor affecting the preservation of food inside the refrigerator. Therefore, the operation control device can analyze the current preservation capacity of the refrigerator using its working state to obtain preservation performance parameters. After obtaining the preservation performance parameters characterizing the refrigerator's preservation capacity, these parameters can be displayed through the refrigerator's display module or sent to the user's terminal to promptly alert the user. This allows the user to more intuitively understand the current preservation capacity of the refrigerator, facilitating user operation.

[0047] Thirdly, embodiments of the present invention provide a refrigerator, including the operation control device described in the second aspect of the embodiments above.

[0048] The refrigerator provided according to embodiments of the present invention has at least the following beneficial effects: Since the working state of the refrigerator changes the food storage environment, thereby affecting the freshness of the food, the working state of the refrigerator is a key factor affecting the preservation of food inside the refrigerator. Therefore, the current preservation capacity of the refrigerator can be analyzed using its working state to obtain preservation performance parameters. After obtaining the preservation performance parameters characterizing the refrigerator's preservation capacity, these parameters can be displayed through the refrigerator's display module or sent to the user's terminal to promptly alert the user. This allows the user to more intuitively understand the current preservation capacity of the refrigerator, facilitating user operation.

[0049] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the control method described in the first aspect of the embodiments above.

[0050] The computer-readable storage medium provided according to embodiments of the present invention has at least the following beneficial effects: By utilizing a sensor module to measure environmental parameters of the food storage environment inside the refrigerator in real time at different times, the change in the environmental state of the food storage environment inside the refrigerator within the preset time period can be obtained by comparing the difference between two environmental parameters before and after the preset time period. Furthermore, by acquiring the cleanliness at the current moment through an odor sensor, i.e., the odor state of the food storage environment inside the refrigerator at the current moment, the storage condition of the food inside the refrigerator at the current moment can be determined. Therefore, by combining the cleanliness at the current moment with the change in the environmental state within the preset time period, the preservation performance parameters of the refrigerator at the current moment can be accurately determined, facilitating user operation.

[0051] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0052] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0053] Figure 1 This is a schematic diagram of a control method for executing a refrigerator provided in an embodiment of the present invention;

[0054] Figure 2 This is a flowchart of a refrigerator control method provided in an embodiment of the present invention;

[0055] Figure 3 yes Figure 2 The detailed flowchart of step S101;

[0056] Figure 4 yes Figure 3 The detailed flowchart of step S203;

[0057] Figure 5 yes Figure 3 The detailed flowchart of step S203;

[0058] Figure 6 yes Figure 5 The detailed flowchart of step S402;

[0059] Figure 7 yes Figure 6 The detailed flowchart of step S501;

[0060] Figure 8 yes Figure 6 The detailed flowchart of step S502;

[0061] Figure 9 It is a flowchart showing the specific process of generating preset cleanliness factors and preset environmental factors;

[0062] Figure 10 yes Figure 2 The detailed flowchart following step S101;

[0063] Figure 11 This is a schematic diagram of the operation control device provided in an embodiment of the present invention. Detailed Implementation

[0064] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0065] It should be understood that in the description of the embodiments of the present invention, the use of terms such as "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated. "At least one" means one or more, and "more than one" means two or more. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or multiple items.

[0066] Furthermore, unless otherwise explicitly specified and limited, the term "connection / linkage" should be interpreted broadly, for example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium.

[0067] In the description of the embodiments of the present invention, the terms "one embodiment / implementation," "another embodiment / implementation," or "some embodiments / implementations," "in the above embodiments / implementations," etc., refer to specific features, structures, materials, or characteristics described in conjunction with embodiments or examples that are included in at least two embodiments or implementations of this disclosure. In this disclosure, the illustrative expressions of the above terms do not necessarily refer to the same illustrative embodiment or implementation. It should be noted that although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than that shown in the flowcharts.

[0068] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0069] This invention provides a refrigerator and its control method, device, and storage medium. The refrigerator's current preservation capacity is analyzed based on its operating state. Since the refrigerator's operating state alters the food storage environment, thus affecting food freshness, it is a key factor influencing food preservation within the refrigerator, thereby yielding preservation performance parameters. After obtaining these parameters characterizing the refrigerator's preservation capacity, they can be displayed on the refrigerator's display module or sent to the user's terminal for timely notification. This allows users to more intuitively understand the refrigerator's current preservation capacity, facilitating its use.

[0070] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0071] Firstly, reference Figure 1 , Figure 1 This is a schematic diagram of the structure of a refrigerator 100 for performing a control method according to an embodiment of the present invention.

[0072] It is understood that the refrigerator 100 internally includes a parameter acquisition component 110, a display module 120, and a control module 130. The parameter acquisition component 110 can acquire various operating status data under the control of the refrigerator 100, such as temperature, humidity, odor concentration, light parameters, oxygen content, microbial content, carbon dioxide concentration, remaining storage space in the refrigerator 100, vibration status, compressor on / off status, fan operation status, etc. In other words, the operating status data can be parameters affecting the refrigerator 100's ability to preserve food. The parameter acquisition component 110, display module 120, and control module 130 are interconnected. The control module 130 can perform preservation performance analysis on the operating status data detected by the parameter acquisition component 110, determining the current preservation performance parameters of the refrigerator 100. The display module 120 can be located on the outside of the refrigerator 100 door. After the control module 130 determines the preservation performance parameters of the refrigerator 100, the display module 120 can directly display the preservation performance parameters on the outside of the door and update the parameters in real time for easy viewing by the user. In addition, the control module 130 can also be connected to the user's terminal. Therefore, the control module 130 can also send the preservation performance parameters to the user's terminal and remotely remind the user of the preservation performance parameters of the refrigerator 100 in real time, which is convenient for the user to use.

[0073] It is understood that the parameter acquisition component 110 may include an odor sensor and a sensor module. The odor sensor includes a sensor chip and a corresponding control circuit. The odor sensor can detect the concentration of various gases in the environment where the odor sensor is located through the sensor chip. The control circuit contains at least one processor that can receive the gas concentration data from the sensor chip and convert and process the data to obtain the cleanliness level. The cleanliness level represents the concentration of harmful gases in the environment where the odor sensor is located; the higher the cleanliness level, the lower the concentration of harmful gases in the current environment. In addition, the control circuit also contains a communication circuit, so that the odor sensor can connect and communicate with the control module 130 through the control circuit, sending the cleanliness level data it detects to the control module 130. The sensor module can detect the environmental parameters in the food storage area of ​​the refrigerator 100. The environmental parameters can be temperature and / or humidity, as well as light parameters, oxygen content, microbial content, carbon dioxide concentration, remaining storage space in the refrigerator 100, vibration, compressor on / off status, fan operation status, etc. In other words, the environmental parameters can be parameters that affect the refrigerator 100's ability to preserve food. Therefore, the control module 130 can determine the preservation performance parameters of the food storage area of ​​the refrigerator 100 by observing the changes in environmental parameters within a preset time period.

[0074] The sensor module may include a temperature sensor and a humidity sensor, which are respectively connected to the control module 130. The control module 130 can obtain the temperature data of the food storage area measured by the temperature sensor under the operation control of the refrigerator 100, and the humidity data of the food storage area measured by the humidity sensor under the operation control of the refrigerator 100.

[0075] Odor sensors can be installed within the air ducts of the refrigerator 100 for gas circulation. These sensors detect changes in the odor state of the entire food storage area within the refrigerator 100 and calculate the overall preservation capacity of the refrigerator 100. The refrigerator 100 can have multiple refrigerator compartments, i.e., multiple food storage areas. Each refrigerator compartment can be equipped with an odor sensor. The cleanliness values ​​detected by multiple odor sensors are used to calculate the preservation capacity of each refrigerator compartment, resulting in a preservation index for each compartment. Temperature and humidity sensors can be installed in the same locations as the odor sensors, either within the air ducts of the refrigerator 100 or separately within each refrigerator compartment.

[0076] The refrigerator 100 described in this embodiment of the invention is for the purpose of more clearly illustrating the technical solutions of the embodiments of the invention, and does not constitute a limitation on the technical solutions provided by the embodiments of the invention. As those skilled in the art will know, with the evolution of the refrigerator 100 and the emergence of new application scenarios, the technical solutions provided by the embodiments of the invention are also applicable to similar technical problems.

[0077] It will be understood by those skilled in the art that Figure 1 The structure of the refrigerator 100 shown does not constitute a limitation on the embodiments of the present invention. It may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0078] Based on the structure of the refrigerator 100 described above, various embodiments of the refrigerator control method of the present invention are proposed.

[0079] Reference Figure 2 , Figure 2 This is a flowchart of a refrigerator control method provided in an embodiment of the present invention. This refrigerator control method can be applied to, for example... Figure 1 The refrigerator 100 shown includes, but is not limited to, the following steps in its control method:

[0080] Step S101: Obtain the working status of the refrigerator and determine the preservation performance parameters of the refrigerator based on the working status;

[0081] Step S102: Display the preservation performance parameters through the refrigerator's display module and / or send the preservation performance parameters to the user terminal to prompt the user.

[0082] Understandably, since a refrigerator's preservation function provides a stable storage environment for food by controlling its own operating status, slowing down the rate of change in food freshness and maintaining food quality, the refrigerator's operating status is a key factor affecting food preservation. This process involves acquiring the refrigerator's operating status under control and analyzing its preservation performance to obtain preservation performance parameters that characterize the refrigerator's current preservation capabilities. These parameters are then displayed on the refrigerator's display module, transforming the refrigerator's preservation capabilities—which are difficult for users to assess—into easily understandable numerical values, text, or images, allowing users to intuitively understand the refrigerator's current preservation capacity. Furthermore, the preservation performance parameters can be sent to the user's terminal, enabling the user to remotely monitor the refrigerator's preservation capabilities in real time and receive timely reminders to process the food inside.

[0083] It should be noted that the display module can also show the refrigerator's current operating status, and the control module can send the refrigerator's current operating status to the user's terminal, allowing the user to understand the refrigerator's operation in real time. The control module can also search for and match corresponding preservation suggestions from a pre-set suggestion database based on the current preservation performance parameters, and display the corresponding preservation suggestions through the display module or send them to the user's terminal, thus promptly reminding the user to handle food preservation and storage. The pre-set suggestion database includes multiple preservation suggestions, with corresponding suggestions for different preservation performance parameters.

[0084] To facilitate user operation, the system compares preset status thresholds with preservation performance parameters to determine the preservation status corresponding to the current preservation performance parameters of the refrigerator. The preservation status is then displayed through the refrigerator's display module or sent to the user's terminal to promptly notify the user, allowing the user to more intuitively understand the current preservation performance parameters of the refrigerator.

[0085] It should be noted that the preservation performance parameter can be expressed as a specific value to indicate the current preservation ability of the refrigerator. The preservation performance parameter ranges from 0 to 100. The higher the value of the preservation performance parameter, the higher the preservation ability of the current refrigerator. The lower the value of the preservation performance parameter, the lower the preservation ability of the current refrigerator, which is not conducive to the preservation of food.

[0086] It should be noted that the preservation performance parameters can be expressed in specific text to indicate the current preservation ability of the refrigerator. The display module can directly show "strong preservation ability" or "weak preservation ability", and the preservation performance parameters can be used to specifically divide the range of the refrigerator's preservation ability.

[0087] It should be noted that the preservation performance parameters can be represented by specific images to indicate the refrigerator's current preservation capabilities. Different colored images or lights can be displayed on the display module to indicate different preservation capabilities. For example, a green light indicates strong preservation capability; a yellow light indicates moderate preservation capability; a red light indicates weak preservation capability; and a flashing red light indicates abnormal preservation capability, making it easy for users to intuitively understand the refrigerator's preservation performance parameters.

[0088] It should be noted that preservation performance parameters can be displayed in various forms. For example, when the value of the preservation performance parameter is between 90 and 100, the refrigerator's current preservation status can be considered as having strong preservation capabilities. The display module or user terminal will show the specific value along with "Strong Preservation Capability," accompanied by a green light or image. Conversely, when the value of the preservation performance parameter is between 75 and 89, the refrigerator's current preservation status can be considered as having moderate preservation capabilities. The display module or user terminal will show the specific value along with "Moderate Preservation Capability," accompanied by a yellow light or image. Therefore, by dividing the numerical range of the preservation performance parameter into multiple status intervals, users can more intuitively understand the refrigerator's current preservation capabilities.

[0089] It should be noted that, in addition to displaying the preservation performance parameters on the display module and / or the user's terminal, the refrigerator's working status can also be displayed to the user, such as the refrigerator's temperature, humidity, gas concentration, and light conditions under operating control, enriching the displayed content and making it easier for users to understand refrigerator knowledge.

[0090] Reference Figure 3 , Figure 3 yes Figure 2 The detailed flowchart of step S101 is in Figure 3 In the example, step S101 includes, but is not limited to, the following steps:

[0091] Step S201: Obtain the first environmental parameters in the food storage area of ​​the refrigerator through the sensor module;

[0092] Step S202: After obtaining the first environmental parameter for a preset time, the second environmental parameter in the food storage area is obtained through the sensor module, and the cleanliness in the food storage area is obtained through the odor sensor.

[0093] Step S203: Determine the preservation performance parameters of the refrigerator based on the cleanliness level and the difference between the first environmental parameter and the second environmental parameter.

[0094] It's understandable that a refrigerator's operating status includes the environmental parameters and cleanliness of the food storage area. The cleanliness and environmental parameters of the environment storing food, such as gas conditions, temperature, and humidity, are key factors affecting food preservation. During refrigerator operation, internal sensor modules acquire the environmental parameters within the food storage area, known as the first environmental parameter. This first environmental parameter represents the environmental parameters at the first moment under operating control. After acquiring the first environmental parameter, the refrigerator continues operating for a preset time, and the internal sensor modules again acquire the environmental parameters within the food storage area, known as the second environmental parameter. This second environmental parameter represents the environmental parameters at the second moment, i.e., the current environmental parameter. Additionally, an internal odor sensor acquires the cleanliness of the food storage area at the current moment, i.e., the cleanliness at the second moment. Large fluctuations in the environmental parameters of the food storage area indicate that the refrigerator's current operating status is unstable, or that the refrigerator is malfunctioning and unable to provide a good storage environment for the food, easily damaging its freshness and accelerating spoilage. Conversely, environmental parameters that are too low or too high will also affect the quality of the food. Therefore, the environmental parameters of the food storage area are crucial factors in evaluating the refrigerator's preservation performance. In addition, some foods emit unpleasant odors during spoilage, or harmful gases can damage their freshness. Therefore, the gas state within the food storage area has a significant impact on the refrigerator's preservation performance parameters. Thus, the difference between the environmental parameters at the first and second moments represents the fluctuation of environmental parameters in the refrigerator's food storage area over a preset time period. By comprehensively processing this fluctuation with the current cleanliness level, the refrigerator's preservation performance parameters at that moment can be accurately determined.

[0095] It should be noted that the preset time interval between two acquisitions of environmental parameters in the food storage area via the sensor module can be adjusted according to actual conditions. For example, because the air in the food storage area exchanges with the outside air after the refrigerator door is opened, the environment inside the food storage area changes, causing significant fluctuations in environmental parameters and unstable gas conditions, which can easily lead to misjudgments. Therefore, different preset time intervals can be set according to the opening and closing status of the refrigerator door. When the refrigerator is operating normally and the door is closed, the preset time interval can be set to 2 seconds, while when the refrigerator is operating normally and the door is open, the preset time interval can be shortened to 1 second. Furthermore, when the refrigerator door is open, it can be assumed that the user is storing or retrieving food, increasing the update frequency of preservation performance parameters and helping users understand the real-time preservation performance parameters of the refrigerator, thus facilitating user operation. After food is stored in or retrieved in the refrigerator's food storage area, the environment within that area will change. For example, when hot food is placed in the refrigerator to cool it down, the environmental parameters fluctuate significantly, which can easily lead to misjudgments. Therefore, environmental parameters can be acquired every second for 30 seconds after the refrigerator door is closed, that is, the refrigerator's preservation performance parameters can be determined every second. This increases the update frequency of preservation performance parameters and helps users.

[0096] It should be noted that environmental parameters can be temperature and / or humidity, but can also include light parameters, oxygen content, microbial content, carbon dioxide concentration, remaining storage space in the refrigerator, vibration conditions, compressor on / off status, fan operation status, etc. In other words, environmental parameters can be parameters that affect the refrigerator's ability to preserve food.

[0097] Reference Figure 4 , Figure 4 yes Figure 3 The detailed flowchart of step S203 is as follows: Figure 3 In the example, step S203 includes, but is not limited to, the following steps:

[0098] Step S301: Obtain the clean history value from the odor sensor, wherein the clean history value is characterized as the measurement value of the odor sensor during the first environmental parameter detection process;

[0099] Step S302: Determine the preservation performance parameters of the refrigerator based on the difference between the cleanliness history value and the cleanliness level, and the difference between the first environmental parameter and the second environmental parameter.

[0100] Understandably, the gas state within the food storage area significantly impacts food preservation. Furthermore, changes in food quality can cause the release of specific gases, altering the gas state within the storage area. Therefore, the refrigerator's preservation performance parameters can be determined by analyzing these changes over a preset time period. The odor sensor detects and stores the current environmental cleanliness in real time. Thus, the historical cleanliness value—comparing the cleanliness level before the preset time period with the current level—can determine the difference in odor state within the food storage area. This historical cleanliness value can be the cleanliness level at the first moment; that is, the cleanliness level within the food storage area can be obtained simultaneously with the initial environmental parameters acquired by the sensor module. A more stable gas state within the preset time period (i.e., a smaller historical cleanliness value and a higher cleanliness level) indicates a more stable environment in the food storage area, providing a clean and stable storage environment for the food, and thus better preservation performance parameters for the refrigerator at that moment. When the gas state is unstable within a preset time period, i.e., the higher the historical cleanliness value and the lower the cleanliness level, the greater the environmental fluctuation in the refrigerator's food storage area at the current moment, and the worse the preservation performance parameters. Therefore, by combining the changes in odor state and environmental state within a preset time period, the refrigerator's preservation performance parameters at the current moment can be accurately determined.

[0101] Reference Figure 5 , Figure 5 yes Figure 3 The detailed flowchart of step S203 is as follows: Figure 5 In the example, step S203 includes, but is not limited to, the following steps:

[0102] Step S401: Obtain the cleanliness index based on the preset cleanliness factor and cleanliness level;

[0103] Step S402: Obtain the environmental index based on the preset environmental factors and the difference between the first environmental parameter and the second environmental parameter;

[0104] Step S403: Obtain the preservation performance parameters based on the sum of the cleanliness index and the environmental index.

[0105] It is understandable that the preservation performance parameters of a refrigerator are specifically reflected in the cleanliness and environmental parameters of the food storage area. However, the degree of these two aspects differs. Therefore, different weighting coefficients can be assigned to cleanliness and environmental parameters to determine their respective corresponding preservation performance parameters. A more accurate preservation performance parameter can then be obtained through comprehensive processing. Cleanliness is processed using a pre-set cleanliness factor. This can be achieved by multiplying the cleanliness factor and cleanliness, with the product serving as the cleanliness index, which represents the preservation performance parameter corresponding to the current cleanliness level. The difference between the first and second environmental parameters is calculated to obtain the environmental difference value, representing the fluctuation of the environmental parameters. This environmental difference value is then processed using a pre-set environmental factor. Alternatively, the environmental factor and environmental difference value can be multiplied, with the product serving as the environmental index, which represents the preservation performance parameter corresponding to the environmental parameter. Therefore, by combining the preservation performance parameters corresponding to cleanliness and environmental parameters—that is, the sum of the cleanliness index and the environmental index—the refrigerator's preservation performance parameter at the current moment is obtained, achieving an accurate determination of the refrigerator's preservation performance parameters.

[0106] Reference Figure 6 , Figure 6 yes Figure 5 The detailed flowchart of step S402 is as follows: Figure 6 In the example, step S402 includes, but is not limited to, the following steps:

[0107] Step S501: Obtain the temperature index based on the preset temperature factor and the difference between the first temperature and the second temperature;

[0108] Step S502: Obtain the humidity index based on the preset humidity factor and the difference between the first humidity and the second humidity;

[0109] Step S503: Obtain the environmental index based on the sum of the temperature index and the humidity index.

[0110] It is understandable that temperature, humidity, and cleanliness are key factors affecting food preservation. Therefore, changes in temperature and humidity inside the refrigerator can be used to evaluate its preservation performance parameters. These temperature and humidity changes reflect the refrigerator's preservation performance parameters to varying degrees. Thus, the sensor module can include temperature and humidity sensors to obtain temperature and humidity data. The first environmental parameter includes a first temperature and a first humidity, i.e., the temperature and humidity within the food storage area at a first moment. The second environmental parameter includes a second temperature and a second humidity, i.e., the temperature and humidity within the food storage area at a second moment. The temperature change before and after a preset time period is processed using a pre-set temperature factor, i.e., the difference between the first and second temperatures is calculated to obtain the temperature difference value. The temperature factor and the temperature difference value are then multiplied, and the product is used as the temperature index, which represents the refrigerator's preservation performance parameters in terms of temperature. Accordingly, the humidity change before and after a preset time period is processed using a pre-set humidity factor. Specifically, the difference between the first and second humidity levels is calculated to obtain the humidity difference value. This difference is then multiplied by the humidity factor, and the resulting product is the humidity index, which represents the refrigerator's preservation performance parameter in terms of humidity. Therefore, combining the humidity index and the temperature index—that is, using the sum of the temperature index and humidity index—as the preservation performance parameter corresponding to the environmental parameters can improve the accuracy of determining the refrigerator's preservation performance parameters.

[0111] Reference Figure 7 , Figure 7 yes Figure 6 The detailed flowchart of step S501 is as follows: Figure 7 In the example, step S501 includes, but is not limited to, the following steps:

[0112] Step S601: Obtain the temperature difference value based on the difference between the first temperature and the second temperature;

[0113] Step S602: Based on the proportional relationship between the temperature difference and the first temperature, and the preset temperature factor, the temperature index is obtained.

[0114] Understandably, the difference between the first and second temperatures is calculated to obtain the temperature difference value, which represents the temperature change before and after a preset time period. Using the ratio between the temperature difference value and the temperature before the preset time period, the trend of temperature change is determined; that is, the quotient of the temperature difference value and the first temperature is identified as the ratio between the two. The quotient of the temperature difference value and the first temperature is then multiplied by a preset temperature factor, and the resulting product is the temperature index. Changes in the refrigerator's preservation performance parameters are directly reflected in the internal temperature changes. Therefore, by understanding the magnitude of the temperature change and the preset temperature factor, the preservation performance parameters corresponding to the temperature changes within the preset time period can be determined more accurately, thus yielding accurate refrigerator preservation performance parameters.

[0115] Reference Figure 8 , Figure 8 yes Figure 6 The detailed flowchart of step S502 is in Figure 8 In the example, step S502 includes, but is not limited to, the following steps:

[0116] Step S701: Obtain the humidity difference value based on the difference between the first humidity and the second humidity;

[0117] Step S702: Obtain the humidity index based on the ratio between the humidity difference and the first humidity, and the preset humidity factor.

[0118] Understandably, the difference between the first and second humidity levels is calculated to obtain the humidity difference value, which represents the change in humidity before and after a preset time period. Using the ratio between the humidity difference value and the humidity before the preset time period, the trend of humidity change is determined; that is, the quotient of the humidity difference value and the first humidity level is determined as the ratio between the two. The quotient of the humidity difference value and the first humidity level is then multiplied by a preset humidity factor, and the resulting product is the humidity index. Changes in the refrigerator's preservation performance parameters are directly reflected in the humidity changes inside the refrigerator. Therefore, by understanding the magnitude of humidity changes and the preset humidity factor, the preservation performance parameters corresponding to humidity changes within a preset time period can be determined more accurately, thus obtaining accurate refrigerator preservation performance parameters.

[0119] It is understandable that the preservation performance parameters of a refrigerator can be obtained by comprehensively processing preset cleanliness factor, preset temperature factor, preset humidity factor, cleanliness, first temperature, second temperature, first humidity and second humidity. The specific determination process of the preservation performance parameters is shown in the following formula (1):

[0120]

[0121] Where P represents the preservation performance parameter, X represents the cleanliness factor, Y represents the temperature factor, Z represents the humidity factor, Sb represents the cleanliness level, Ta represents the first temperature, Tb represents the second temperature, RHa represents the first humidity, and RHb represents the second humidity. The cleanliness level, Sb, ranges from 0 to 100. Therefore, after normalizing the cleanliness level, a cleanliness percentage is obtained. This cleanliness percentage is then multiplied by the cleanliness factor to calculate the cleanliness index. Similarly, the quotient of the temperature difference and the first temperature (processing the temperature change trend) is used to obtain the temperature change percentage, which represents the stability of the temperature within a preset time period. This temperature change percentage is then multiplied by the temperature factor to calculate the temperature index. Likewise, the quotient of the humidity difference and the first humidity (processing the humidity change trend) is used to obtain the humidity change percentage, which represents the stability of the humidity within a preset time period. This humidity change percentage is then multiplied by the humidity factor to calculate the humidity index. The sum of the cleanliness index, temperature index, and humidity index is then calculated to obtain the preservation performance parameter.

[0122] Among them, the cleanliness factor, i.e., X, can range from 0.5 to 0.7; the temperature factor, i.e., Y, can range from 0.1 to 0.3; and the humidity factor, i.e., Z, can range from 0.05 to 0.2.

[0123] For example, the cleanliness factor is 0.6, the temperature factor is 0.25, and the humidity factor is 0.15; the cleanliness value is 95, the first temperature is 5℃, the second temperature is 5.2℃, the first humidity is 40%, and the second humidity is 42%. Therefore, the preservation performance parameters at the current moment can be determined to be 95.

[0124] Reference Figure 9 , Figure 9 It is a flowchart detailing the generation process of preset cleanliness factors and preset environmental factors. Figure 9 In the example, the generation process of the preset cleanliness factor and preset environmental factor includes, but is not limited to, the following steps:

[0125] Step S801: Obtain the total runtime of the refrigerator;

[0126] Step S802: Obtain the cleaning factor based on the ratio of total running time to preset odor duration;

[0127] Step S803: Obtain the environmental factor based on the ratio of total runtime to preset environmental duration.

[0128] Understandably, as a refrigerator runs longer, the odor emitted by the food in the storage area becomes relatively limited, leading to a stable odor state within the refrigerator. This makes it difficult to accurately determine the refrigerator's preservation performance parameters based solely on the internal odor state. However, changes in these preservation performance parameters directly affect environmental parameters within the food storage area, such as temperature and / or humidity. Therefore, by adjusting the cleanliness and environmental factors in real time based on the refrigerator's total running time, it's possible to accurately determine the refrigerator's preservation performance parameters at any given moment by utilizing changes in odor and environmental conditions.

[0129] When environmental parameters include temperature and humidity, environmental factors include temperature and humidity factors. The environmental duration ratio also includes temperature and humidity duration ratios. Therefore, the temperature factor can be determined by the ratio of the refrigerator's total operating time to the temperature duration, and the humidity factor can be determined by the ratio of the refrigerator's total operating time to the humidity duration. Specifically, in the temperature duration ratio, the temperature factor value is inversely proportional to the operating time value; that is, the longer the refrigerator's total operating time, the higher the temperature factor value. Similarly, in the humidity duration ratio, the humidity factor value is inversely proportional to the operating time value; that is, the longer the refrigerator's total operating time, the higher the humidity factor value. Therefore, the longer the refrigerator's operating time, the lower the cleanliness factor value, and the higher the values ​​of both the temperature and humidity factors.

[0130] Reference Figure 10 , Figure 10 yes Figure 2 The detailed flowchart after step S101 is in Figure 10 In the example, after step S101, there are, but are not limited to, the following steps:

[0131] Step S901: When the preservation performance parameters are lower than the preset abnormal threshold, the new working status of the refrigerator is periodically obtained, and the preservation performance parameters of the refrigerator are updated according to the new working status.

[0132] Step S902: When the preservation performance parameter is lower than the preset abnormal threshold for a preset alarm duration, an alarm message for preservation abnormality is issued.

[0133] Understandably, if the preservation performance parameters fall below the preset abnormal threshold, it can be assumed that the refrigerator's current preservation capacity is insufficient to keep the food in the storage area fresh, thus compromising its freshness. Users should be alerted to address this issue promptly. Because the air inside the food storage area exchanges with the outside air after the refrigerator door is opened, the environment changes, leading to unstable operating conditions and potential misjudgments. Furthermore, the environment inside the food storage area also changes after food is placed in or out of the refrigerator. For example, placing hot food inside to cool it down can cause significant fluctuations in operating conditions, further increasing the risk of misjudgments. Therefore, to avoid misjudgments affecting user experience, when the preservation performance parameters fall below the preset abnormal threshold, the refrigerator enters an anomaly detection state. Within a preset alarm duration, it periodically re-acquires the refrigerator's new operating status, analyzes the preservation performance under the new status, and updates the preservation performance parameters in real time. If the refrigerator's preservation performance parameters remain below the preset abnormal threshold for a set alarm duration, it can be assumed that the refrigerator's current preservation capacity is insufficient to keep the food in the storage area fresh. In this case, a preservation abnormality alarm will be issued to promptly notify the user for handling. Conversely, if the refrigerator's preservation performance parameters exceed the preset abnormal threshold for a set alarm duration, the change in the refrigerator's internal environment can be considered a normal fluctuation, and the refrigerator will exit the abnormality detection state to avoid falsely reminding the user to handle the food inside. The preset duration can be adjusted accordingly when the refrigerator is in abnormality detection mode, such as shortening the time or increasing the detection frequency.

[0134] The newly acquired operating status includes abnormal cleanliness from the odor sensor and a third environmental parameter from the sensor module. The specific process for updating the refrigerator's preservation performance parameters can be as follows: based on the abnormal cleanliness, the difference between the third environmental parameter and the second environmental parameter, the refrigerator's preservation performance parameters are redefined. This involves using the changes in environmental parameters within a preset alarm duration and the real-time cleanliness to redefine the refrigerator's preservation performance parameters. Since the abnormal cleanliness and the third environmental parameter are acquired periodically, the third environmental parameter is repeatedly acquired within the preset alarm duration. Therefore, the specific process can also be as follows: based on the abnormal cleanliness, the previous third environmental parameter, and the current third environmental parameter, the refrigerator's preservation performance parameters are redefined. This involves using the changes in environmental parameters within a preset duration under abnormal detection conditions and the real-time cleanliness to redefine the refrigerator's preservation performance parameters.

[0135] It should be noted that the preset alarm duration can be set according to actual conditions. For example, the preset alarm duration can be 3 hours or 10 hours. When the preset alarm duration is set to 5 hours and the preset abnormal threshold is 40, if the freshness preservation performance parameter falls below the preset abnormal threshold and the freshness preservation performance parameter is still below 40 after being continuously checked within 5 hours, it can be considered that the refrigerator's freshness preservation performance parameter is abnormal, and an alarm message for a freshness preservation abnormality will be issued, prompting the user to clean or check the refrigerator in time.

[0136] refer to Figure 11 , Figure 11 The present invention provides a schematic diagram of the structure of the operation control device 1100 according to a second aspect embodiment of the present invention. The operation control device 1100 includes: a memory 1110, a processor 1120 and a computer program stored in the memory 1110 and executable on the processor 1120. When the processor 1120 executes the computer program, it implements the refrigerator control method as described in the above embodiment.

[0137] The memory 1110, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs, such as the refrigerator control method in the above embodiments of the present invention. The processor 1120 implements the refrigerator control method in the above embodiments of the present invention by running the non-transitory software program and instructions stored in the memory 1110.

[0138] The memory 1110 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data required for executing the refrigerator control method described in the above embodiments. Furthermore, the memory 1110 may include high-speed random access memory (RAM) 1110, and may also include non-transitory memory 1110, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. It should be noted that the memory 1110 may optionally include memory 1110 remotely located relative to the processor 1120, and these remote memories 1110 can be connected to the terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks (LANs), mobile communication networks, and combinations thereof.

[0139] The non-transient software program and instructions required to implement the refrigerator control method in the above embodiments are stored in memory. When executed by one or more processors, the refrigerator control method in the above embodiments is executed, for example, the method described above is executed. Figure 2 Method steps S101 to S102, Figure 3 Method steps S201 to S203, Figure 4 Method steps S301 to S302, Figure 5 Method steps S401 to S403, Figure 6 Method steps S501 to S503, Figure 7 Method steps S601 to S602, Figure 8 Method steps S701 to S702, Figure 9 Method steps S801 to S803 and Figure 10 The method steps S901 to S902.

[0140] A third aspect of the present invention provides a refrigerator, which includes an operation control device 1100 as provided in the second aspect embodiment. Since the refrigerator's preservation function provides a stable storage environment for food by controlling its own operating state, slowing down the rate of change in food freshness, and maintaining food quality, the refrigerator's operating state is a key factor affecting food preservation. The operating state under the refrigerator's operation control is acquired, and the preservation performance is analyzed based on the current operating state to obtain preservation performance parameters characterizing the refrigerator's current preservation capability. These preservation performance parameters are displayed on the refrigerator's display module, thereby transforming the refrigerator's preservation capability, which is difficult for users to judge, into values, text, or images that users can clearly and easily understand, allowing users to intuitively perceive the refrigerator's current preservation capability. Furthermore, the preservation performance parameters can be sent to a user terminal, allowing users to remotely monitor the refrigerator's preservation capability in real time and receive timely reminders to process the food inside the refrigerator, facilitating user operation.

[0141] A fourth aspect of the present invention provides a computer-readable storage medium storing computer-executable instructions that can be used to cause a computer to perform the refrigerator control method of the first aspect embodiment described above, for example, to perform the above-described... Figure 2 Method steps S101 to S102, Figure 3 Method steps S201 to S203, Figure 4 Method steps S301 to S302, Figure 5 Method steps S401 to S403, Figure 6 Method steps S501 to S503, Figure 7 Method steps S601 to S602, Figure 8 Method steps S701 to S702, Figure 9 Method steps S801 to S803 and Figure 10 The method steps S901 to S902.

[0142] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media or non-transitory media and communication media or transient media. As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc DVD or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0143] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method for controlling a refrigerator, characterized in that, include: The sensor module acquires the first environmental parameters within the food storage area of ​​the refrigerator. After a preset time period of acquiring the first environmental parameter, the second environmental parameter in the food storage area is acquired through the sensor module, and the cleanliness in the food storage area is acquired through the odor sensor. The preservation performance parameters of the refrigerator are determined based on the cleanliness level and the difference between the first environmental parameter and the second environmental parameter. The refrigerator displays the preservation performance parameters through its display module and / or sends the preservation performance parameters to the user terminal to prompt the user. The step of determining the preservation performance parameters of the refrigerator based on the cleanliness level and the difference between the first environmental parameter and the second environmental parameter includes: The cleanliness index is obtained based on the preset cleanliness factor and the cleanliness level. An environmental index is obtained based on preset environmental factors and the difference between the first environmental parameter and the second environmental parameter; The preservation performance parameters are obtained by summing the cleanliness index and the environmental index.

2. The control method according to claim 1, characterized in that, The step of determining the preservation performance parameters of the refrigerator based on the cleanliness level and the difference between the first environmental parameter and the second environmental parameter includes: Obtain the cleanliness history value from the odor sensor, wherein the cleanliness history value is characterized by the measurement value of the odor sensor during the first environmental parameter detection process; The preservation performance parameters of the refrigerator are determined based on the difference between the cleanliness history value and the cleanliness level, and the difference between the first environmental parameter and the second environmental parameter.

3. The control method according to claim 1, characterized in that, The first environmental parameter includes a first temperature and a first humidity; the second environmental parameter includes a second temperature and a second humidity. The step of obtaining the environmental index based on preset environmental factors and the difference between the first environmental parameter and the second environmental parameter includes: The temperature index is obtained based on the preset temperature factor and the difference between the first temperature and the second temperature. The humidity index is obtained based on the preset humidity factor and the difference between the first humidity and the second humidity. The environmental index is obtained by summing the temperature index and the humidity index.

4. The control method according to claim 3, characterized in that, The step of obtaining the temperature index based on a preset temperature factor and the difference between the first temperature and the second temperature includes: The temperature difference is obtained based on the difference between the first temperature and the second temperature; The temperature index is obtained based on the proportional relationship between the temperature difference and the first temperature, and a preset temperature factor.

5. The control method according to claim 4, characterized in that, The step of obtaining the humidity index based on a preset humidity factor and the difference between the first humidity and the second humidity includes: The humidity difference is obtained based on the difference between the first humidity and the second humidity. The humidity index is obtained based on the ratio between the humidity difference and the first humidity, and a preset humidity factor.

6. The control method according to claim 1, characterized in that, The preset cleanliness factor and the preset environmental factor are obtained through the following steps: Obtain the total runtime of the refrigerator; The cleaning factor is obtained based on the ratio of the total running time to the preset odor duration. The environmental factor is obtained based on the ratio of the total runtime to the preset environmental duration.

7. The control method according to claim 1, characterized in that, The control method further includes: When the preservation performance parameter is lower than the preset abnormal threshold, the new working status of the refrigerator is periodically obtained, and the preservation performance parameter of the refrigerator is updated according to the new working status. When the preservation performance parameter is below the preset abnormal threshold for a preset alarm duration, an alarm message for preservation abnormality is issued.

8. An operation control device, characterized in that, The refrigerator includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to implement the refrigerator control method as described in any one of claims 1 to 7.

9. A refrigerator, characterized in that, Includes the operation control device as described in claim 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to perform the refrigerator control method as described in any one of claims 1 to 7.

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