Refrigerator and fresh-keeping control method thereof

Abstract

The present disclosure belongs to the technical field of refrigerators, and provides a refrigerator and a fresh-keeping control method thereof. The refrigerator is provided with a chamber for storing fruits and vegetables. The fresh-keeping control method of the refrigerator acquires growth characteristic information of the fruits and vegetables stored in the chamber. The growth characteristic information is used to represent the suitable growth region and natural ripening season of the fruits and vegetables. The current calendar time, the region where the refrigerator is located, the suitable growth region of the fruits and vegetables, and the natural ripening season are combined to determine fruit and vegetable counter-season information of the fruits and vegetables stored in the chamber. The fruit and vegetable counter-season information is used to represent whether the chamber contains counter-season fruits and vegetables. According to the fruit and vegetable counter-season information, the fresh-keeping parameters in the chamber are adjusted according to the regulation and control strategy matched with the counter-season fruits and vegetables.

Description

Technical Field

[0001] This disclosure pertains to the field of refrigerator technology, and more specifically, relates to a refrigerator and a method for controlling the preservation of food. Background Technology

[0002] As people's living standards improve, consumers' demand for fruit and vegetable preservation is increasing. The preservation performance of refrigerators directly affects the freshness, edibility, and storage period of fruits and vegetables.

[0003] Currently, most refrigerators on the market use fixed preservation parameters to uniformly control refrigerated fruits and vegetables, which easily leads to problems such as fruit and vegetable rotting, undercooking, poor quality when eaten, and nutrient loss. This makes it difficult to meet consumers' demand for accurate preservation of fruits and vegetables. Therefore, the preservation technology of existing refrigerators still has obvious shortcomings and needs further improvement. Summary of the Invention

[0004] The purpose of this disclosure is to provide a refrigerator and its preservation control method, which aims to solve the technical problem that existing refrigerators use fixed preservation parameters to uniformly control refrigerated fruits and vegetables, which cannot meet consumers' needs for fruit and vegetable preservation.

[0005] To achieve the above objectives, according to a first aspect of this disclosure, a method for controlling the preservation of food in a refrigerator is provided, the refrigerator being provided with a compartment for storing fruits and vegetables, the method comprising:

[0006] The growth characteristics information of the fruits and vegetables stored in the room is obtained, and the growth characteristics information is used to characterize the suitable growing areas and natural ripening season of the fruits and vegetables.

[0007] By combining the current calendar time, the location of the refrigerator, the suitable growing area of ​​the fruits and vegetables and their natural ripening season, the off-season information of the fruits and vegetables stored in the compartment is determined. The off-season information is used to characterize whether the compartment contains off-season fruits and vegetables.

[0008] Based on the information about off-season fruits and vegetables, the preservation parameters in the compartment are adjusted according to the control strategy that matches the off-season fruits and vegetables.

[0009] The beneficial effects of the embodiments disclosed herein compared to the prior art are as follows:

[0010] By acquiring the growth characteristics of the fruits and vegetables stored in the refrigerator compartment, this information is used to characterize the suitable growing areas and natural ripening seasons of the fruits and vegetables. Combined with the current calendar time, the refrigerator's location, the suitable growing areas and natural ripening seasons of the fruits and vegetables, the off-season information of the stored fruits and vegetables in the compartment is determined. This off-season information indicates whether the compartment contains off-season fruits and vegetables. Based on this off-season information, differentiated control strategies are selected to accurately match preservation parameters with the actual needs of the fruits and vegetables. Compared to existing refrigerators that use fixed preservation parameters, this improves the targeting and effectiveness of fruit and vegetable preservation. It not only avoids energy waste caused by over-preserving seasonal fruits and vegetables but also solves problems such as quality decline and rapid spoilage caused by insufficient preservation of off-season fruits and vegetables. This achieves accurate preservation of various fruits and vegetables, improves the user experience, and reduces the refrigerator's energy consumption.

[0011] According to a second aspect of this disclosure, a refrigerator is provided, comprising a compartment for storing fruits and vegetables, an identification device, a temperature regulating device, a humidity regulating unit, a light source device, and a controller; the identification device, the temperature regulating device, the humidity regulating unit, and the light source device are all connected to the controller; the controller stores a preset database containing standard characteristic parameters and corresponding growth characteristic information of various sample fruits and vegetables; the controller is configured to execute a computer program to implement the refrigerator preservation control method as described in any one of the present invention.

[0012] According to a third aspect of this disclosure, an electronic device is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the electronic device causes the electronic device to perform the method as described in any one of the present invention.

[0013] According to a fourth aspect of this disclosure, a computer-readable storage medium is provided that stores a computer program, which, when executed by a processor, implements the method as described in any one of the claims.

[0014] According to a fifth aspect of this disclosure, a computer program product is provided that, when run on an electronic device, causes the electronic device to perform the method described in any one of the first aspects above.

[0015] It is understandable that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic flowchart of a refrigerator preservation control method provided in an embodiment of this disclosure;

[0018] Figure 2 This is a schematic flowchart of another refrigerator preservation control method provided in this embodiment of the present disclosure;

[0019] Figure 3 This is a schematic flowchart of another refrigerator preservation control method provided in this embodiment of the present disclosure;

[0020] Figure 4 This is a schematic flowchart of another refrigerator preservation control method provided in this embodiment of the present disclosure;

[0021] Figure 5 This is a schematic flowchart of another method for controlling the freshness of a refrigerator provided in this embodiment of the present disclosure;

[0022] Figure 6 This is a schematic flowchart of another method for controlling the freshness of a refrigerator provided in an embodiment of this disclosure;

[0023] Figure 7 This is a schematic diagram of an optional refrigerator provided in an embodiment of this disclosure;

[0024] Figure 8 This is a schematic diagram of an optional refrigerator provided in an embodiment of this disclosure;

[0025] Figure 9 This is a schematic diagram of an optional temperature control device and humidity control device provided in an embodiment of this disclosure;

[0026] Figure 10 This is a schematic diagram of the structure of a moisture-permeable membrane assembly for a refrigerator provided in an embodiment of this disclosure;

[0027] Figure 11 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this disclosure. Detailed Implementation

[0028] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, so as to provide a thorough understanding of the embodiments of this disclosure. However, those skilled in the art will understand that this disclosure may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this disclosure with unnecessary detail.

[0029] It should be understood that, when used in this disclosure and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0030] It should also be understood that, in the description of this disclosure, unless otherwise stated, the " / " used in this specification and the appended claims indicates that the related objects are in an "or" relationship. For example, A / B can mean A or B. The "and / or" in this disclosure is merely a description of the relationship between the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. Furthermore, in the description of this disclosure, unless otherwise stated, "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0031] Furthermore, to facilitate a clear description of the technical solutions of the embodiments of this disclosure, the terms "first" and "second" are used in the embodiments of this disclosure to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, but are only used for distinguishing descriptions, and the terms "first" and "second" are not necessarily different, nor should they be construed as indicating or implying relative importance.

[0032] As used in this disclosure and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [the described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [the described condition or event] is detected," or "in response to detection of [the described condition or event]."

[0033] References to "one embodiment" or "some embodiments" as described in this disclosure mean that one or more embodiments of this disclosure include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized.

[0034] This disclosure provides an example of a method for controlling the freshness of a refrigerator. Please refer to... Figure 1 As shown, Figure 1 A schematic flowchart of a refrigerator preservation control method provided in this disclosure is shown. This is by way of example and not limitation; the method can be applied to or operated in a refrigerator having a compartment for storing fruits and vegetables. The method includes:

[0035] S101, Obtain the growth characteristic information of the fruits and vegetables stored in the room, wherein the growth characteristic information is used to characterize the suitable growing areas and natural ripening season of the fruits and vegetables.

[0036] S102, combining the current calendar time, the region where the refrigerator is located, the suitable growing region of fruits and vegetables and their natural ripening season, determines the off-season information of fruits and vegetables stored in the compartment. The off-season information is used to indicate whether the compartment contains off-season fruits and vegetables.

[0037] S103 adjusts the preservation parameters in the storage room based on information about off-season fruits and vegetables and in accordance with control strategies that match off-season fruits and vegetables.

[0038] To address the technical problem that existing refrigerators have fixed preservation parameters, making it impossible to differentiate the preservation of fruits and vegetables based on whether they are out of season, resulting in over-preservation of seasonal fruits and vegetables and under-preservation of out-of-season fruits and vegetables, thus affecting the freshness, edibility, and storage period of fruits and vegetables, this embodiment discloses a preservation control method for refrigerators. The refrigerator is equipped with an independent compartment for storing fruits and vegetables. This compartment can be set up independently of the refrigerator's refrigerator compartment and freezer compartment, or it can be used as an independent partition within the refrigerator compartment.

[0039] In implementing the refrigerator preservation control method, the first step is to obtain the growth characteristics information of the fruits and vegetables stored in the compartment. This growth characteristics information is used to characterize the suitable growing areas and natural ripening seasons of the fruits and vegetables. In order to provide more comprehensive and accurate basic data support for off-season determination and preservation parameter adjustment, this growth characteristics information can also further include the light requirements, temperature requirements and humidity requirements of fruits and vegetables in the seasonal growing environment.

[0040] In some embodiments, for example, when the fruits and vegetables stored in the room are lychees, their growth characteristics information should clearly state that the suitable growing areas for lychees are tropical and subtropical regions of South China (such as Guangdong, Guangxi, Hainan, etc.), the natural ripening season is from May to July each year, and the suitable temperature under the seasonal growing environment is 25-30℃, the suitable humidity is 70%-85%, and the suitable light duration is 10-12 hours / day.

[0041] In some embodiments, image and / or spectral information of fruits and vegetables stored in the refrigerator can be acquired through an integrated identification device, such as a camera, spectral sensor, or infrared spectrometer. The appearance features of the fruits and vegetables, such as color, shape, size, and surface texture (e.g., the red peel and oval shape of lychee), can be extracted from the image information. The internal components, such as sugar, vitamin, and moisture content, can be extracted from the spectral information. The extracted features are then compared and matched with a preset database built into the refrigerator to accurately obtain the growth characteristics information of the fruits and vegetables.

[0042] The pre-set database stores standard appearance characteristic parameters and standard internal component characteristic parameters of various common fruits and vegetables and special fruits and vegetables, and each standard characteristic parameter corresponds to corresponding growth characteristic information.

[0043] After successfully obtaining information on the growth characteristics of fruits and vegetables, the off-season information of the fruits and vegetables stored in the compartment can be determined by combining the current calendar time, the location of the refrigerator, the suitable growing area of ​​the fruits and vegetables, and the natural ripening season. This off-season information is used to determine whether the compartment contains off-season fruits and vegetables.

[0044] In some embodiments, the location of the refrigerator can be obtained in real time through the refrigerator's built-in positioning module. The positioning module can automatically synchronize geographical location information to ensure the accuracy of the location information; the current calendar time is obtained by synchronizing network time through the refrigerator's built-in time module to ensure the accuracy of the time information.

[0045] Taking lychees and cherries as examples, if the refrigerator is located in a northern temperate region (such as Shandong or Hebei), and the stored fruit or vegetable is lychee, and the suitable growing area for lychee is the tropical and subtropical region of South China, then the refrigerator is not located in the suitable growing area for lychee. This means that lychee cannot grow naturally in the northern temperate region. Even if the current calendar time is May to July (the natural ripening season for lychee), the lychee is still considered an off-season fruit or vegetable. Therefore, it can be directly determined that the refrigerator contains off-season fruits or vegetables.

[0046] If the refrigerator is located in Guangdong (a suitable growing region for lychees), and the climate conditions match the suitable growing climate zone for lychees, and the current calendar time is October, which is outside the natural ripening season of lychees from May to July, then the lychees are considered off-season fruits and vegetables. If the current calendar time is June, which is within the natural ripening season of lychees, and lychees can grow naturally in Guangdong, then the refrigerator does not contain off-season fruits and vegetables. For example, if the refrigerator is located in Shandong (a suitable growing region for cherries), and the current calendar time is December, which is outside the natural ripening season of cherries from May to June, then the cherries stored at this time are considered off-season fruits and vegetables.

[0047] Finally, based on the aforementioned information on off-season fruits and vegetables, and in accordance with the control strategies that match seasonal or off-season fruits and vegetables, the preservation parameters in the storage room are adjusted. The preservation parameters may include at least one of temperature, humidity, and light parameters. The temperature parameter includes the temperature setpoint and temperature fluctuation range, the humidity parameter may include the humidity setpoint and humidity adjustment accuracy, and the light parameter may include the light wavelength, light intensity, and light duration. Furthermore, the setting of any of the above parameters can be flexibly adjusted according to the growth characteristics of the fruits and vegetables.

[0048] In some embodiments, when the room does not contain off-season fruits and vegetables, a control strategy adapted to seasonal fruits and vegetables is adopted. This involves combining the growth characteristics of seasonal fruits and vegetables with the preservation parameters corresponding to their seasonal growth environment to maintain their freshness and original flavor. Since seasonal fruits and vegetables are freshly harvested and have high inherent freshness, there is no need to improve their quality; it is sufficient to maintain their current state. By matching the preservation parameters to the seasonal growth environment, it is possible to effectively avoid the spoilage and nutrient loss of fruits and vegetables caused by excessively high or low preservation parameters, thereby extending the shelf life of seasonal fruits and vegetables.

[0049] In some embodiments, when the room contains off-season fruits and vegetables, an appropriate control strategy is adopted. The preservation parameters are adjusted in a targeted manner based on the growth characteristics of off-season fruits and vegetables and the current environmental conditions. Since off-season fruits and vegetables are mostly transported across regions or grown in greenhouses, their freshness, nutritional components and taste are not as good as those of seasonal fruits and vegetables. By adjusting the preservation parameters in a targeted manner, the edible quality of off-season fruits and vegetables can be improved and the storage period can be extended.

[0050] This embodiment of the invention obtains the growth characteristic information of the fruits and vegetables stored in the compartment. This growth characteristic information is used to characterize the suitable growing areas and natural ripening seasons of the fruits and vegetables. By combining the current calendar time, the location of the refrigerator, the suitable growing areas and natural ripening seasons of the fruits and vegetables, the off-season information of the fruits and vegetables stored in the compartment is determined. Based on the off-season information, a differentiated control strategy is selected to determine whether the compartment contains off-season fruits and vegetables. This can achieve accurate matching of preservation parameters with the actual needs of fruits and vegetables, improve the targeting and effectiveness of fruit and vegetable preservation, not only avoid the energy waste caused by over-preservation of seasonal fruits and vegetables, but also solve the problems of quality decline and rapid spoilage caused by insufficient preservation of off-season fruits and vegetables, improve the user experience, and reduce the energy consumption of the refrigerator.

[0051] In some embodiments, such as Figure 2 As shown, S101, acquire the growth characteristic information of the fruits and vegetables stored in the room, including:

[0052] S201, acquire image information and / or spectral information of the fruits and vegetables stored in the room.

[0053] S202, extract appearance feature parameters of fruits and vegetables based on image information, and / or extract internal component feature parameters of fruits and vegetables based on spectral information.

[0054] The appearance characteristics include at least one of color, shape, size and surface texture, and the internal composition characteristics include at least one of sugar content, vitamin content and moisture content.

[0055] S203, compare and match the appearance characteristic parameters and / or internal component characteristic parameters with a preset database to obtain the growth characteristic information of fruits and vegetables.

[0056] The preset database stores standard characteristic parameters of various sample fruits and vegetables, as well as growth characteristic information corresponding to the standard characteristic parameters. The standard characteristic parameters include standard appearance characteristic parameters and standard internal component characteristic parameters.

[0057] In some embodiments, by accurately collecting the characteristic parameters of fruits and vegetables and comparing and matching them with a preset database, the growth characteristic information of fruits and vegetables can be accurately obtained, providing reliable data support for subsequent off-season determination and preservation parameter control, so as to effectively solve the problems of low accuracy of existing fruit and vegetable identification and incomplete acquisition of growth characteristic information.

[0058] Specifically, for example, an identification device integrated into the top of the refrigerator compartment can be used to obtain image and / or spectral information of the fruits and vegetables stored in the compartment. This identification device includes a camera and a spectral sensor. The camera is used to collect image information of the appearance of the fruits and vegetables, which can clearly capture the external morphological details of the fruits and vegetables. The spectral sensor is used to collect near-infrared spectral information of the fruits and vegetables, which can penetrate the surface of the fruits and vegetables to obtain spectral data related to their internal components. The two can work independently or in conjunction, flexibly adapting to the identification needs of different types and states of fruits and vegetables.

[0059] In some embodiments, when lychees and cherries are stored in the room, the camera can capture image information of the red peel, oval shape, and raised texture of the lychee, as well as image information of the red or dark red peel, round shape, and smooth surface of the cherry; the spectral sensor can capture the near-infrared spectral information of the lychee and cherry respectively, which can reflect the differences in sugar content, vitamin C content, and moisture content of the two.

[0060] After acquiring image information and / or spectral information, appearance feature parameters of fruits and vegetables are extracted based on the image information, and / or internal component feature parameters of fruits and vegetables are extracted based on the spectral information. The appearance feature parameters include at least one of color, shape, size and surface texture, and the internal component feature parameters include at least one of sugar content, vitamin content and moisture content.

[0061] During the extraction process, image recognition algorithms are used to process the collected image information and filter out the appearance characteristics of fruits and vegetables. For example, lychee is extracted as having a deep red color, an oval shape, a diameter of 2-3 cm, and an irregular raised texture on the surface; cherry is extracted as having a bright red color, a round shape, a diameter of 1-1.5 cm, and a smooth surface without obvious texture. Furthermore, spectral analysis algorithms can be used to analyze spectral information and convert it into quantifiable internal component characteristic parameters. For example, lychee is extracted as having a sugar content of 15%-18%, a vitamin C content of 41 mg / 100g, and a moisture content of 80%-85%; cherry is extracted as having a sugar content of 12%-15%, a vitamin C content of 10 mg / 100g, and a moisture content of 85%-90%, thus effectively distinguishing different types of fruits and vegetables.

[0062] Subsequently, the extracted appearance feature parameters and / or internal component feature parameters are compared and matched with a preset database to obtain the growth characteristic information of fruits and vegetables. The preset database stores standard feature parameters of various sample fruits and vegetables, as well as growth characteristic information corresponding to the standard feature parameters. The standard feature parameters include standard appearance feature parameters and standard internal component feature parameters, including relevant data of common fruits and vegetables (such as lychee, mango, cherry, strawberry, apple, etc.) and some specific fruits and vegetables. Moreover, the preset database can be continuously updated and improved through user input to improve the accuracy of comparison and matching.

[0063] When performing comparison and matching, a single feature parameter comparison or a multi-feature parameter joint comparison can be used. The multi-feature parameter joint comparison is preferred to improve the matching accuracy. For example, the appearance feature parameters and internal component feature parameters of lychee can be fully compared with the standard appearance feature parameters and standard internal component feature parameters of lychee in the preset database. If the comparison matching degree reaches the preset threshold (such as more than 90%), the fruit and vegetable can be identified as lychee.

[0064] By acquiring image and / or spectral information and obtaining the appearance and internal characteristics of fruits and vegetables, compared to simply acquiring image information, it is possible to identify fruit and vegetable varieties more comprehensively and accurately, avoiding identification errors caused by similar appearances of fruits and vegetables (such as different varieties of cherries); by extracting specific appearance feature parameters and internal component feature parameters, the accuracy of matching results can be ensured, thereby accurately obtaining information on the growth characteristics of fruits and vegetables.

[0065] In some embodiments, such as Figure 3 As shown in S102, combining the current calendar time, the region where the refrigerator is located, the suitable growing area for fruits and vegetables, and their natural ripening season, determine the off-season information of the fruits and vegetables stored in the compartment, including:

[0066] S301 If the refrigerator is located outside the suitable growing area of ​​any fruit or vegetable in the compartment, or if the climate conditions of the refrigerator's location do not match the suitable growing climate zone of any fruit or vegetable, then the compartment is determined to contain off-season fruits and vegetables.

[0067] S302 If the refrigerator is located within the suitable growing area of ​​all fruits and vegetables in the room, and the climate conditions of the refrigerator's location match the suitable growing climate zone of all fruits and vegetables, then the current calendar time is compared with the natural ripening season of all fruits and vegetables.

[0068] S303, if the current calendar time falls within the natural ripening season for all fruits and vegetables, then it is determined that the room does not contain off-season fruits and vegetables.

[0069] S304 If the current calendar time exceeds the natural ripening season of any fruit or vegetable, or if the fruit or vegetable cannot grow naturally in the area where the refrigerator is located at the current calendar time, then it is determined that the compartment contains off-season fruits and vegetables.

[0070] In one embodiment, firstly, based on the embodiments described above, the growth characteristics information of all fruits and vegetables in the room, including the suitable growing area, suitable growing climate zone and natural ripening season of each fruit and vegetable, is obtained through the positioning module built into the refrigerator, and the current calendar time is obtained through the time module.

[0071] In some embodiments, the storage room can store a variety of fruits and vegetables, such as lychees, cherries, and strawberries. The growth characteristics of these three fruits and vegetables are clearly defined: lychees are suitable for growing in tropical and subtropical regions of South China (such as Guangdong, Guangxi, and Hainan), with a suitable climate zone of tropical and subtropical humid climate, and naturally ripen from May to July; cherries are suitable for growing in temperate regions of northern China (such as Shandong, Hebei, and Liaoning), with a suitable climate zone of temperate monsoon climate, and naturally ripen from May to June; strawberries are suitable for growing in temperate and subtropical regions (such as Zhejiang and Sichuan), with a suitable climate zone of temperate humid and subtropical humid climate, and naturally ripen from November to March of the following year.

[0072] In some embodiments, if the area where the refrigerator is located is not within the suitable growing area of ​​any fruit or vegetable in the compartment, or if the climate conditions of the area where the refrigerator is located do not match the suitable growing climate zone of any fruit or vegetable, then it is directly determined that the compartment contains off-season fruits and vegetables.

[0073] For example, if the refrigerator is located in Heilongjiang (temperate continental climate), and the compartment stores lychees, cherries, and strawberries, lychees are best grown in tropical and subtropical regions of South China, which Heilongjiang is not within. Furthermore, Heilongjiang's temperate continental climate does not match the tropical and subtropical humid climate of lychees. Even if the current calendar time in Heilongjiang is June, which is the natural ripening season for lychees, it can be directly determined that the compartment contains out-of-season fruits and vegetables. Similarly, if the refrigerator is located in Guangdong (subtropical humid climate), and the compartment stores cherries, cherries are best grown in a temperate monsoon climate, which does not match the climate of Guangdong. Even if the current calendar time in Guangdong is May, which is the natural ripening season for cherries, these cherries are still out-of-season fruits and vegetables. Therefore, it can be determined that the compartment contains out-of-season fruits and vegetables.

[0074] In some embodiments, if the refrigerator is located within the suitable growing area for all fruits and vegetables in the compartment, and the climate conditions of the refrigerator's location match the suitable growing climate zone for all fruits and vegetables (if only part of the suitable climate zone for fruits and vegetables is suitable, then the refrigerator's location must be within that suitable area), then the current calendar time is further compared with the natural ripening season of all fruits and vegetables. Specifically, if the current calendar time is within the natural ripening season of all fruits and vegetables, then it is determined that the compartment does not contain off-season fruits and vegetables; if the current calendar time exceeds the natural ripening season of any fruit or vegetable, or if the fruit or vegetable cannot grow naturally in the refrigerator's location at the current calendar time, then it is determined that the compartment contains off-season fruits and vegetables.

[0075] It should be noted that this judgment logic takes into account scenarios where multiple fruits and vegetables coexist in the refrigerator compartment. It clearly defines the principle that if any one fruit or vegetable is not suitable, it is considered to contain out-of-season produce. This ensures that the selected control strategy aligns with the needs of all fruits and vegetables in the compartment, preventing issues such as spoilage and quality decline caused by unidentified out-of-season produce leading to inappropriate preservation parameter settings. Furthermore, this judgment process is implemented within the refrigerator itself, requiring no manual user intervention, thus improving the user experience.

[0076] In some embodiments, the preservation parameters include at least one of temperature parameters, humidity parameters, and light parameters. The light parameters are further refined into light wavelength, light intensity, and light duration. The temperature parameters include temperature setpoint and temperature fluctuation range. The humidity parameters include humidity setpoint and humidity adjustment accuracy. The refined setting of each parameter can achieve accurate preservation control and avoid the problem that existing refrigerators cannot adapt to the needs of different fruits and vegetables due to their single fixed parameters.

[0077] In some embodiments, such as Figure 4 As shown in S103, based on information about off-season fruits and vegetables, and following a control strategy that matches off-season fruits and vegetables, the preservation parameters in the storage compartment are adjusted, including:

[0078] S401, if the compartment does not contain off-season fruits and vegetables, then according to the control strategy that matches seasonal fruits and vegetables: control at least one of the refrigerator's light source device, temperature control device and humidification device, and adjust the preservation parameters in the compartment in the first working mode.

[0079] S402, if the compartment contains off-season fruits and vegetables, then according to the control strategy matching the off-season fruits and vegetables: control at least one of the light source device, temperature control device and humidification device, and adjust the preservation parameters in the compartment in the second working mode.

[0080] The first working mode is: based on the types and growth characteristics of seasonal fruits and vegetables in the room, match at least one of the following: a first light program, a first suitable temperature range, and a first suitable humidity range.

[0081] The second working mode is: based on the type and growth characteristics of off-season fruits and vegetables in the room, match at least one of the following: a second light program, a second suitable temperature range, and a second suitable humidity range.

[0082] In some embodiments, the refrigerator's light source device is used to adjust the illumination parameters inside the compartment, and the illumination wavelength, intensity, and duration can be adjusted as needed; the temperature control device is used to adjust the temperature parameters inside the compartment, accurately control the temperature setpoint and temperature fluctuation range, and avoid excessive temperature fluctuations that could affect the preservation of fruits and vegetables; the humidification device is used to adjust the humidity parameters inside the compartment, ensuring that the humidity is maintained within the set value range and has corresponding adjustment precision to meet the humidity requirements of different fruits and vegetables.

[0083] If the compartment does not contain off-season fruits and vegetables, it means that all fruits and vegetables in the compartment are in season. In this case, control at least one of the refrigerator's light source, temperature control, and humidification devices to adjust the preservation parameters in the compartment using the first operating mode. The first operating mode is based on the type and growth characteristics of the seasonal fruits and vegetables in the compartment, matching at least one of the corresponding first light program, first suitable temperature range, and first suitable humidity range to ensure that the preservation parameters match the growth characteristics and storage needs of the seasonal fruits and vegetables. The purpose is to maintain the freshness, original flavor, and nutritional components of the seasonal fruits and vegetables, and avoid over- or under-preservation.

[0084] In some embodiments, the light intensity range for naturally ripened fruits and vegetables in spring is 1000-1500 lx and the light duration range is 8-10 hours / day; the light intensity range for naturally ripened fruits and vegetables in summer is 1500-2500 lx and the light duration range is 10-14 hours / day; the light intensity range for naturally ripened fruits and vegetables in autumn is 1000-1500 lx and the light duration range is 8-10 hours / day; and the light intensity range for naturally ripened fruits and vegetables in winter is 500-1000 lx and the light duration range is 5-8 hours / day.

[0085] If the compartment contains off-season fruits and vegetables, it means that at least one type of fruit or vegetable in the compartment is off-season. In this case, control at least one of the refrigerator's light source, temperature control, and humidification devices to adjust the preservation parameters of the compartment in the second operating mode. The second operating mode is based on the type and growth characteristics of the off-season fruits and vegetables in the compartment, and matches at least one of the corresponding second light program, second suitable temperature range, and second suitable humidity range to specifically adapt to the preservation needs of off-season fruits and vegetables, and make up for the lack of freshness and quality caused by regional or temporal differences in off-season fruits and vegetables.

[0086] For example, if the refrigerator is located in Shandong Province and the current calendar month is October, and the refrigerator compartment contains off-season lychees, then the second operating mode will be used for regulation: Based on the growth characteristics of lychees, the second lighting program will be matched with a light wavelength of 450-700nm (specifically enhancing the photosynthesis of lychees to compensate for insufficient light during off-season), a light intensity of 1500-1800lx, and a light duration of 11-13 hours / day; the second suitable temperature range will be 26-29℃, with a temperature fluctuation range not exceeding ±1℃, which is higher than the temperature range of in-season lychees and adapts to the temperature requirements for off-season lychee storage; the second suitable humidity range will be 78%-82%, with a humidity regulation accuracy of not less than ±1%, ensuring that the lychees maintain sufficient moisture and reducing nutrient loss.

[0087] For example, if the refrigerator is located in Guangdong and the current calendar time is October, and off-season cherries are stored in the compartment, based on the growth characteristics of cherries, the second working mode matches the second lighting program with a light wavelength of 400-600nm, a light intensity of 800-1000lx, and a light duration of 7-9 hours / day. The second suitable temperature range is 0-2℃, with a temperature fluctuation range not exceeding ±0.5℃, and the second suitable humidity range is 82%-87%, specifically adapted to the storage needs of off-season cherries to prevent cherries from freezing or rotting due to dehydration.

[0088] It should be noted that when storing both seasonal and off-season fruits and vegetables in the storage room, the control parameters of the second working mode prioritize the needs of off-season fruits and vegetables while also considering the basic preservation requirements of seasonal fruits and vegetables, thus preventing spoilage due to unsuitable parameters. Furthermore, compared to the first working mode, the light program, suitable temperature range, and suitable humidity range of both modes are matched based on the growth characteristics of the corresponding fruits and vegetables (seasonal or off-season), exhibiting significant differences in settings to ensure targeted control.

[0089] By selecting either the first or second operating mode based on information about off-season fruits and vegetables, differentiated control of seasonal and off-season produce is achieved, balancing the preservation needs of different fruits and vegetables stored in the refrigerator. For seasonal fruits and vegetables, the first operating mode effectively maintains their freshness and original quality, extends the shelf life, and avoids energy waste caused by over-preservation. For off-season fruits and vegetables, the second operating mode can specifically compensate for quality defects caused by regional or temporal differences, improve edible quality, or extend the storage period, solving the technical problems of the difficulty in preserving off-season fruits and vegetables and their susceptibility to spoilage. Furthermore, parameter adjustment is achieved by controlling the corresponding regulating device, eliminating the need for manual user intervention and realizing automated and intelligent preservation control.

[0090] In some embodiments, the second operating mode includes an enhancement mode and a reduction mode, such as Figure 5 As shown, adjusting the preservation parameters inside the compartment in the second working mode includes:

[0091] S501, obtain the first environmental parameter corresponding to the current calendar time, and the second environmental parameter corresponding to the natural ripening season of off-season fruits and vegetables.

[0092] The first environmental parameter includes the current ambient light intensity, ambient temperature, and ambient humidity of the area where the refrigerator is located; the second environmental parameter includes the average light intensity, average temperature, and average humidity of off-season fruits and vegetables during their natural ripening season in suitable growing areas.

[0093] S502, when the first environmental parameters are all lower than the corresponding second environmental parameters, and the difference between the first environmental parameters and the second environmental parameters exceeds a preset deviation threshold, at least one of the light source device, temperature adjustment device and humidification device is controlled to enhance the adjustment of the preservation parameters in the room.

[0094] S503, when the first environmental parameter is higher than the corresponding second environmental parameter, and the difference between the first environmental parameter and the second environmental parameter exceeds the preset deviation threshold, at least one of the light source device, temperature adjustment device and humidification device is controlled to reduce the preservation parameters in the mode adjustment room.

[0095] In some embodiments, the second working mode, as a control mode adapted to the preservation needs of off-season fruits and vegetables, can be further refined into an enhanced mode and a weakened mode. Specifically, it combines the growth environment of off-season fruits and vegetables during their natural ripening season with the actual environmental differences of the refrigerator's current location to adjust the preservation parameters in a targeted manner, thereby achieving accurate preservation of off-season fruits and vegetables. This solves the technical problem that the existing off-season fruit and vegetable control modes are too simple and cannot adapt to different environmental scenarios, resulting in unstable preservation effects and insignificant improvement in the quality of off-season fruits and vegetables.

[0096] In some embodiments, the first environmental parameter corresponds to the current calendar time, and the second environmental parameter corresponds to the natural ripening season of off-season fruits and vegetables. Both sets of parameters can be set around three dimensions: light, temperature, and humidity, to ensure the relevance and effectiveness of the comparison.

[0097] The first environmental parameter can be collected in real time by the built-in environmental sensor of the refrigerator. It refers to the current actual environmental parameters of the area where the refrigerator is located, such as the current ambient light intensity, ambient temperature and ambient humidity of the area where the refrigerator is located. The second environmental parameter can be stored in the refrigerator's preset database and corresponds one-to-one with the growth characteristic information of off-season fruits and vegetables. It refers to the average environmental parameters of off-season fruits and vegetables during their natural ripening season in their suitable growing areas, which may include average light intensity, average temperature and average humidity.

[0098] It should be understood that preset deviation thresholds are the criteria for determining whether to activate enhanced or weakened modes. These thresholds can be preset based on the growth characteristics of different fruits and vegetables and stored in a preset database. Specifically, they can be divided into light difference thresholds, temperature difference thresholds, and humidity difference thresholds, corresponding to the comparison of environmental parameters in three dimensions. For example, the light difference threshold for lychee is 300 lx, the temperature difference threshold is 5℃, and the humidity difference threshold is 15%; the light difference threshold for cherry is 200 lx, the temperature difference threshold is 4℃, and the humidity difference threshold is 10%. Setting preset thresholds can ensure the accuracy of regulation and avoid unnecessary enhanced or weakened regulation due to slight environmental differences, thus saving energy.

[0099] When all first environmental parameters are lower than the corresponding second environmental parameters, and the difference between the first and second environmental parameters exceeds a preset deviation threshold, at least one of the refrigerator's light source, temperature control, and humidification devices is controlled to enhance the adjustment of the preservation parameters within the refrigerator compartment. The purpose of this enhanced mode is to compensate for the difference between the current environment and the environment during the natural ripening season of off-season fruits and vegetables by increasing the preservation parameters, simulating the environmental conditions for the seasonal growth of off-season fruits and vegetables, improving their edible quality, supplementing their nutritional components, and reducing quality decline caused by insufficient environmental conditions.

[0100] The following specific embodiments illustrate this. For example, if the refrigerator is located in Shandong Province and the current time is October, and it is storing off-season lychees, the differences between the first and second environmental parameters are as follows: light intensity difference of 500-600 lx (exceeding the preset threshold of 300 lx), temperature difference of 8-13℃ (exceeding the preset threshold of 5℃), and humidity difference of 20-30% (exceeding the preset threshold of 15℃). In this case, the enhanced mode is activated: the light source device is controlled to increase the light intensity, further increasing it from the basic light intensity of 1500-1800 lx in the second working mode to 1800- 2000 lx, with light duration maintained at 11-13 hours / day and light wavelength adjusted to 450-700nm to compensate for the current insufficient light; the temperature control device was used to raise the temperature from 26-29℃ to 28-30℃, with temperature fluctuation range maintained within ±1℃, close to the average temperature for lychee growth during the season; the humidification device was used to raise the humidity from 78%-82% to 80%-85%, with humidity adjustment accuracy maintained within ±1%, to supplement insufficient environmental humidity. Through the above enhanced regulation, the environment for lychee growth during the season was simulated, increasing the sugar and moisture content of off-season lychees and improving their taste.

[0101] When all first environmental parameters are higher than the corresponding second environmental parameters, and the difference between the first and second environmental parameters exceeds a preset deviation threshold, at least one of the refrigerator's light source, temperature control, and humidification devices is controlled to adjust the preservation parameters within the compartment in a reduced mode. The purpose of the reduced mode is to avoid the problem of over-ripening and accelerated spoilage of off-season fruits and vegetables due to excessively favorable current conditions by lowering the preservation parameters, thereby maintaining the freshness of off-season fruits and vegetables and extending their storage period.

[0102] The following specific embodiments illustrate this concept. For example, if the refrigerator is located in Hainan and the current time is October, and it is storing off-season cherries, the differences between the first and second environmental parameters are as follows: light intensity difference of 800-1000 lx (exceeding the preset threshold of 200 lx), temperature difference of 6-10℃ (exceeding the preset threshold of 4℃), and humidity difference of 15-25% (exceeding the preset threshold of 10%). In this case, a reduction mode is activated: the light source device is controlled to reduce the light intensity, decreasing it from the base light intensity of 800-1000 lx in the second operating mode to 600-800 lx. The light exposure time is shortened to 6-8 hours / day, and the light wavelength is maintained at 400-600nm to avoid excessive light causing cherry skin aging; the temperature regulation device is controlled to reduce the temperature from 0-2℃ to -1-1℃, with the temperature fluctuation range maintained within ±0.5℃, to inhibit cherry respiration and avoid over-ripening; the humidity is controlled to reduce the humidity from 82%-87% to 78%-82%, with the humidity regulation accuracy maintained within ±1%, to avoid excessive humidity causing cherry rot. Through the above-mentioned weakening and regulation, the adverse effects of the current environment on off-season cherries are avoided, and the storage period of off-season cherries is extended.

[0103] By refining the second working mode into an enhanced mode and a weakened mode, the limitations of existing single-mode regulation of off-season fruits and vegetables can be avoided, adapting to environmental differences in different regions and seasons. By acquiring and comparing the first and second environmental parameters, combined with preset thresholds, the difference between the current environment and the in-season growing environment of off-season fruits and vegetables can be accurately determined, thus avoiding blind regulation. For scenarios where the current environment is lower than the in-season growing environment, the enhanced mode can effectively compensate for the environmental gap, simulate in-season growing conditions, improve the edible quality and nutritional components of off-season fruits and vegetables, and solve the problems of poor taste and nutrient loss. For scenarios where the current environment is higher than the in-season growing environment, the weakened mode can effectively inhibit the over-ripening of fruits and vegetables, extend the storage period, and solve the problem of short shelf life of off-season fruits and vegetables. Furthermore, the regulation process of the enhanced and weakened modes is automated, requiring no manual user intervention, thus improving the user experience.

[0104] In some embodiments, such as Figure 6 As shown, after adjusting the preservation parameters in the compartment using the enhanced mode, the method further includes:

[0105] S601, at each first predetermined time interval, re-acquire image information and / or spectral information of off-season fruits and vegetables in the room.

[0106] S602, Based on the reacquired image information and / or spectral information, determine the edible quality indicators of off-season fruits and vegetables.

[0107] Among them, the food quality indicators include at least one of sugar content, vitamin content, hardness, and color.

[0108] S603, when the edible quality index of off-season fruits and vegetables reaches the preset optimal edible quality index threshold, outputs the first prompt information and controls at least one of the refrigerator's light source device, temperature regulation device and humidification device to switch from enhanced mode to the first working mode and adjust the preservation parameters inside the compartment.

[0109] Among them, the optimal edible quality index threshold is consistent with the edible quality index of the corresponding seasonal fruits and vegetables. The first prompt information is used to remind users of the estimated time when off-season fruits and vegetables will reach the optimal edible quality, as well as the remaining shelf life after reaching the optimal edible quality.

[0110] In some embodiments, after adjusting the preservation parameters in the room using the enhanced mode, the changes in the edible quality of off-season fruits and vegetables are continuously monitored to promptly capture the point at which they reach the optimal edible quality. This enables accurate switching from the enhanced mode to the first working mode, ensuring that the edible quality of off-season fruits and vegetables reaches its best while avoiding energy waste caused by excessive control. The system also informs users of the best time to eat the fruits and vegetables through prompts, thus improving the user experience.

[0111] It should be understood that the first predetermined duration refers to the time interval for re-collecting image information and / or spectral information of off-season fruits and vegetables. The first predetermined duration can be preset based on the type of off-season fruits and vegetables and the intensity of the enhancement mode, and stored in the refrigerator's controller. This allows for accurate monitoring of changes in food quality without affecting the freshness of the fruits and vegetables, avoiding energy consumption caused by excessively frequent collection, or missing the optimal food quality node due to excessively long collection intervals.

[0112] The initial scheduled duration can be set to, but is not limited to, 6-12 hours. For example, tropical fruits and vegetables such as off-season lychees and mangoes have faster quality changes (ripening) under enhanced mode, so the initial scheduled duration can be set to 6-8 hours. Temperate fruits and vegetables such as off-season cherries and apples have relatively slower quality changes, so the initial scheduled duration can be set to 10-12 hours. The duration can be flexibly adjusted according to the type of fruit and vegetable to ensure that the monitoring of the edible quality of fruits and vegetables is targeted.

[0113] In some embodiments, at each first predetermined time interval, the refrigerator's identification device (camera + spectral sensor) is automatically activated to re-collect image information and / or spectral information of off-season fruits and vegetables in the compartment. The collection method is consistent with the collection method for obtaining the characteristic parameters of fruits and vegetables mentioned above, which can accurately reflect the real-time status of off-season fruits and vegetables.

[0114] After re-acquiring image and / or spectral information, the edible quality indicators of off-season fruits and vegetables are determined based on this new image and / or spectral information. These edible quality indicators include at least one of sugar content, vitamin content, firmness, and color, to measure the edible quality of the fruits and vegetables and comprehensively reflect their taste, nutrition, and freshness. Specifically, by analyzing the acquired image information using image recognition algorithms, the color (e.g., the uniformity of the deep red of lychee peel, the brightness of the bright red of cherry peel) and firmness (indirectly determined by the shape and surface elasticity characteristics of the fruits and vegetables in the image) of off-season fruits and vegetables can be determined. By analyzing the spectral information using spectral analysis algorithms, the sugar and vitamin content of off-season fruits and vegetables (e.g., the sugar and vitamin C content of lychee, the sugar and vitamin E content of cherries) can be quantified, ensuring that the determination of edible quality indicators is accurate and quantifiable.

[0115] It should still be understood that the preset optimal eating quality index threshold is used to determine whether off-season fruits and vegetables have reached their optimal eating state. This threshold is consistent with the eating quality index of the corresponding seasonal fruits and vegetables. It is stored in the refrigerator's preset database and corresponds one-to-one with the types of off-season fruits and vegetables to ensure that the determination of optimal eating quality is in line with the standards of seasonal fruits and vegetables, thus making up for the quality gap of off-season fruits and vegetables.

[0116] By comparing the real-time determined edible quality indicators of off-season fruits and vegetables with preset optimal edible quality thresholds, if the edible quality indicators of off-season fruits and vegetables reach the preset optimal edible quality threshold, it indicates that the off-season fruits and vegetables have reached their optimal edible state. At this point, a first prompt message is output, and the refrigerator's relevant adjustment devices switch from enhanced mode to the first working mode, adjusting the preservation parameters within the compartment. The first prompt message informs the user of the estimated time when off-season fruits and vegetables will reach their optimal edible quality, as well as the remaining preservation time after reaching optimal edible quality. The prompt message can be simultaneously output through the refrigerator's screen and a linked app, allowing users to be aware of the information and consume the produce promptly, avoiding missing the optimal consumption time. Once off-season fruits and vegetables have reached their optimal edible quality, there is no need to continue in enhanced mode; instead, the system switches to the first working mode (an adjustment mode adapted to seasonal fruits and vegetables) to maintain optimal edible quality, reduce energy consumption, and prevent excessive ripening and spoilage caused by over-enhancing control.

[0117] By collecting information on off-season fruits and vegetables at predetermined intervals, the system ensures that the optimal eating quality is captured in a timely manner, solving the problem of difficulty in controlling the best time to eat off-season fruits and vegetables. By determining the eating quality indicators based on the collected information and combining them with the optimal thresholds consistent with those of seasonal fruits and vegetables, the system ensures that the eating quality of off-season fruits and vegetables can reach the level of seasonal fruits and vegetables. By switching modes, the system can maintain the optimal eating quality of fruits and vegetables while avoiding the energy waste caused by continuous operation of enhanced modes. By outputting the first prompt message, users can know the quality status of fruits and vegetables in a timely manner, improving the user experience.

[0118] In some embodiments, after adjusting the preservation parameters within the compartment in the second operating mode, the method further includes:

[0119] In response to receiving a control priority switching command, at least one of the light source device, temperature control device, and humidification device is controlled to switch from the second working mode to the first working mode to adjust the preservation parameters in the room.

[0120] The first working mode remains in continuous state until a control priority switching instruction is received again, or when a change in the type or season of fruits and vegetables in the room is detected, the control priority is automatically redefined.

[0121] In some embodiments, after adjusting the preservation parameters in the compartment in the second working mode, considering that the compartment stores both off-season and in-season fruits and vegetables, or that users have personalized preservation needs, a control priority switching function is set up. This allows users to manually switch the preservation control priority according to their own needs, taking into account the preservation needs of both off-season and in-season fruits and vegetables, improving the flexibility and personalization of preservation control, and solving the technical problems of existing refrigerators having fixed control modes that cannot meet users' personalized needs, or the inability to adjust the preservation priority when multiple fruits and vegetables coexist.

[0122] It should be noted that if the refrigerator compartment contains off-season fruits and vegetables (either storing only off-season fruits and vegetables or storing both off-season and in-season fruits and vegetables), the controller will activate the second working mode (enhanced mode or reduced mode) based on the off-season information to adjust the preservation parameters within the compartment, prioritizing the preservation needs of off-season fruits and vegetables. Referring back to the previous example, for instance, if the refrigerator is located in Shandong and it is currently October, and the compartment stores off-season lychees (under enhanced mode) and in-season apples, the second working mode will prioritize the needs of off-season lychees, with the control parameters being light intensity 1800-2000 lx, temperature 28-30℃, and humidity 80-85%. Similarly, if the refrigerator is located in Hainan and it is currently October, and the compartment stores off-season cherries (under reduced mode) and in-season mangoes, the second working mode will prioritize the needs of off-season cherries, with the control parameters being light intensity 600-800 lx, temperature -1 to 1℃, and humidity 78-82%.

[0123] During the adjustment of preservation parameters in the second working mode, the controller monitors in real time the control priority switching commands triggered by the user. The triggering methods support operation on the refrigerator screen, remote operation via the associated APP, and voice interaction, adapting to different user scenarios and improving the ease of operation.

[0124] In some embodiments, in response to receiving a control priority switching command, the controller controls at least one of the refrigerator's light source, temperature control device, and humidification device to switch from the current second operating mode to the first operating mode, simultaneously adjusting the preservation parameters within the compartment. That is, the control priority is switched from off-season fruits and vegetables to in-season fruits and vegetables. The control parameters of the first operating mode are matched based on the types and growth characteristics of in-season fruits and vegetables within the compartment, ensuring that the preservation needs of in-season fruits and vegetables are met while also considering the basic preservation of off-season fruits and vegetables, preventing spoilage due to sudden changes in preservation parameters.

[0125] The following description continues to illustrate the embodiments of this disclosure in conjunction with specific scenarios: For example, in the scenario of Shandong in October mentioned above, if the user triggers the control priority switching command, the controller controls the light source device, temperature adjustment device, and humidification device to switch from enhanced mode to the first working mode, adjusting the light intensity from 1800-2000 lx to 1000-1200 lx suitable for seasonal apples, adjusting the temperature from 28-30℃ to 0-2℃ suitable for apples, and adjusting the humidity from 80-85%. For apples, the light intensity is adjusted to 70-75%, prioritizing the freshness and quality of seasonal apples. In Hainan in October, after the user triggers the switching command, the system switches from the reduced mode to the first working mode, adjusting the light intensity from 600-800 lx to 1300-1500 lx suitable for seasonal mangoes, the temperature from -1 to 1℃ to 10-12℃ suitable for mangoes, and the humidity from 78-82% to 75-80% suitable for mangoes, thus meeting the preservation needs of seasonal mangoes.

[0126] After switching from enhanced mode to the first working mode, the controller will remain in this state until one of the following two situations occurs, at which point the control priority will be automatically redefined: The first situation is when the controller receives another control priority switching command from the user. In this case, the controller responds to the command, switches back from the first working mode to the second working mode, and restores the control logic that prioritizes off-season fruits and vegetables. The second situation is when the refrigerator's identification device detects a change in the type and season of fruits and vegetables in the compartment. In this case, the controller automatically reacquires the growth characteristics of the fruits and vegetables, re-determines the off-season information, and then redefined the control priority to avoid mismatch of control parameters due to changes in the state of the fruits and vegetables.

[0127] By setting a priority switching function, users can manually switch the control priority according to their own needs, balancing the preservation requirements of storing off-season and in-season fruits and vegetables, and solving the problem of not being able to adjust the preservation priority when multiple fruits and vegetables are stored together. Furthermore, by setting the first working mode to be continuous, it can avoid the control parameters becoming incompatible due to changes in the type of fruits and vegetables or the season of storage.

[0128] In some embodiments, the method further includes:

[0129] Every second predetermined time interval, or when a new fruit or vegetable is placed in the room or an existing fruit or vegetable is removed, the growth characteristics information of all fruits and vegetables in the room is re-acquired.

[0130] Retrieve the current calendar time and the third environmental parameters of the refrigerator's location, including ambient light intensity, ambient temperature, and ambient humidity.

[0131] Based on the newly acquired growth characteristic information, the current calendar time, the location of the refrigerator, and third-party environmental parameters, the off-season information of fruits and vegetables in the compartment is re-determined;

[0132] Based on the newly determined off-season information for fruits and vegetables, the corresponding control strategies are re-matched, and the preservation parameters in the storage rooms are adjusted based on the control strategies.

[0133] In some embodiments, the triggering conditions for reacquiring the growth characteristics information of all fruits and vegetables in the room can be, but are not limited to, two types: periodic triggering and event triggering. The two triggering methods complement each other to ensure the timeliness and comprehensiveness of information reacquisition.

[0134] The periodic triggering refers to automatically initiating the information re-acquisition process at second predetermined intervals. These second predetermined intervals are preset based on the shelf life of fruits and vegetables and the rate of change of environmental parameters, and are stored in the refrigerator controller. The setting principle is to balance monitoring accuracy and energy conservation, avoiding energy waste due to excessively short intervals or control lag due to excessively long intervals. Referring to the previous embodiment, the second predetermined interval can be, but is not limited to, set to 24-48 hours, such as 24 hours.

[0135] Event triggering refers to the detection of new fruits and vegetables being placed in the compartment or existing fruits and vegetables being removed. This triggering method can respond in real time to changes in the type and quantity of fruits and vegetables, ensuring that the control parameters are adapted to the new fruit and vegetable combinations in a timely manner. Specifically, the events of new fruits and vegetables being placed in or existing fruits and vegetables being removed are detected by sensors (such as infrared sensors or weight sensors) installed in the refrigerator compartment. When an object is sensed being placed in or removed from the compartment and is identified as a fruit or vegetable, the information re-acquisition process is triggered; if the item placed in or removed is not a fruit or vegetable (such as tableware or a food storage container), no trigger is triggered to avoid ineffective control.

[0136] It's important to understand that whether the event is triggered periodically or by an event, the following information retrieval steps must be performed:

[0137] First, the growth characteristics information of all fruits and vegetables in the compartment is re-acquired. In particular, for newly added fruits and vegetables, the acquisition method can be the same as before, that is, by using the recognition device (camera, spectral sensor) integrated into the refrigerator to collect image information and / or spectral information of all fruits and vegetables in the compartment, extract appearance feature parameters and internal component feature parameters, compare and match them with the preset database, and obtain the growth characteristics information of each fruit and vegetable (suitable growing area, natural ripening season, etc.) to ensure the real-time and accuracy of the collected information.

[0138] Second, the current calendar time and the third environmental parameters of the refrigerator's location are re-acquired. The current calendar time is updated by synchronizing the network time through the refrigerator's built-in time module. The third environmental parameters can be collected in real time by the refrigerator's built-in environmental sensors, including the current ambient light intensity, ambient temperature and ambient humidity of the refrigerator's location. This can be the same as the collection method of the first environmental parameter mentioned above. The difference is that the third environmental parameter is used for dynamic updating of off-season determination to adapt to real-time changes in the environment.

[0139] Subsequently, based on the newly acquired growth characteristic information, the current calendar time, the location of the refrigerator, and third environmental parameters, the off-season information of fruits and vegetables in the compartment is re-determined. The re-determination logic is consistent with the logic of determining off-season information in the previous text, that is, through regional matching, climate matching, and time comparison, the compartment is determined from multiple dimensions to determine whether it contains off-season fruits and vegetables, ensuring that the off-season information is accurately matched with the current fruit and vegetable status and environmental status.

[0140] For example, if the refrigerator is located in Shandong and the current time is October, and the compartment originally only contains out-of-season lychees, it is re-identified as containing out-of-season fruits and vegetables. When the user puts in seasonal apples, the growth characteristics information of both is retrieved again. Combined with the current time, Shandong region, and third environmental parameters (October Shandong environment: 800-1000 lx light intensity, 15-18℃ temperature, 50-55% humidity), the re-identification is still that it contains out-of-season fruits and vegetables (lychees are out-of-season, apples are in season). If the current time is moved to May of the following year, the information is periodically re-retrieved. At this time, the third environmental parameters of Shandong region become 1000-1200 lx light intensity, 20-22℃ temperature, and 65-70% humidity. The lychees in the compartment have been removed, leaving only apples. After re-retrieving the growth characteristics information of the apples, combined with the current time (May is the natural ripening season for apples), it is re-identified as not containing out-of-season fruits and vegetables.

[0141] Finally, based on the re-determined off-season fruit and vegetable information, the corresponding control strategy is re-matched, and the preservation parameters in the storage compartment are adjusted accordingly to ensure that the preservation parameters are always accurately adapted to the off-season information. If the storage compartment does not contain off-season fruits and vegetables after re-determination, the first working mode is re-matched, and the preservation parameters are adjusted to meet the needs of seasonal fruits and vegetables; if off-season fruits and vegetables are still included after re-determination, the second working mode (enhanced mode or weakened mode) is re-matched, and the preservation parameters are adjusted in conjunction with the third environmental parameters to meet the real-time needs of off-season fruits and vegetables.

[0142] Continuing with the previous example, in the scenario of placing seasonal apples in Shandong in October, the system is re-evaluated as including off-season fruits and vegetables. The second working mode (enhanced mode) is then re-matched, and the preservation parameters are adjusted to 1700-1900 lx light intensity, 27-29℃ temperature, and 79-84% humidity, prioritizing the needs of off-season lychees while also considering the basic preservation requirements of seasonal apples. If, in May of the following year, the system is re-evaluated as not including off-season fruits and vegetables, the first working mode is re-matched, and the parameters are adjusted to 1000-1200 lx light intensity, 0-2℃ temperature, and 70-75% humidity, to meet the preservation needs of seasonal apples. If the third environmental parameters change, such as a sudden drop in temperature in Shandong in October, the third environmental parameters become 700-900 lx light intensity, 12-15℃ temperature, and 45-50% humidity, and the enhanced mode is re-matched.

[0143] This allows for dynamic updates of fruit and vegetable growth characteristics and environmental parameters, ensuring timely adaptation of preservation control to changes in fruit and vegetable and environmental conditions. Furthermore, it accurately identifies the types and needs of newly added fruits and vegetables and updates the existing conditions, preventing control errors due to changes in fruit and vegetable conditions. Re-acquiring third-party environmental parameters allows for adaptation to real-time environmental fluctuations, ensuring more targeted off-season determination and control strategies. By redefining off-season information, re-matching control strategies, and adjusting parameters, problems such as decreased preservation effects, fruit and vegetable spoilage, and nutrient loss caused by the addition / removal of fruits and vegetables or environmental changes can be effectively avoided.

[0144] In some embodiments, the method further includes:

[0145] If the preset database cannot identify the types and growth characteristics of indoor fruits and vegetables, a third prompt message will be output.

[0146] The third prompt is used to prompt the user to input the growth characteristics of the target fruit or vegetable. The growth characteristics information includes at least the name of the fruit or vegetable, the suitable growing region, and the natural ripening season.

[0147] Based on the growth characteristics of the target fruits and vegetables input by the user, combined with the current calendar time and the location of the refrigerator, the seasonal attributes of the target fruits and vegetables are determined.

[0148] The off-season information of fruits and vegetables in the storage room is updated based on the seasonal attributes of the target fruits and vegetables, and the corresponding control strategies are matched and the preservation parameters in the storage room are adjusted according to the updated off-season information.

[0149] The growth characteristics, corresponding seasonal attributes, and control strategies of the target fruits and vegetables input by the user are stored in a preset database.

[0150] In some embodiments, to address the technical problem that specific fruits and vegetables, niche fruits and vegetables, or new types of fruits and vegetables cannot be identified by the preset database, resulting in the inability to obtain growth characteristic information, determine off-season information, and adapt control strategies, the preset database content is enriched by guiding users to input relevant information, thereby improving the accuracy of subsequent identification.

[0151] In some embodiments, the refrigerator's identification device collects image and / or spectral information of the fruits and vegetables stored in the compartment, extracts the corresponding appearance and internal component characteristic parameters, and then performs a comprehensive comparison and matching with the standard characteristic parameters of various sample fruits and vegetables stored in a preset database. If the matching degree does not reach a preset identification threshold (e.g., below 90%), it is determined that the type and growth characteristics of the fruit and vegetable cannot be identified based on the preset database. It should be understood that the inability to identify mainly applies to fruits and vegetables not included in the preset database, such as niche fruits and vegetables (e.g., star fruit, wax apple), special varieties of fruits and vegetables (e.g., niche varieties of plums), or newly cultivated fruits and vegetables whose characteristic parameters are not pre-stored in the database.

[0152] After determining that the fruit or vegetable cannot be identified, the controller instructs the refrigerator to output a third prompt message to guide the user to input the growth characteristics information of the target fruit or vegetable (i.e., the unidentifiable fruit or vegetable). For example, it can clearly prompt the user for the information to be entered, ensuring that the information entered by the user is complete and valid. This growth characteristics information includes at least the name of the fruit or vegetable, its suitable growing region, and its natural ripening season. If the user omits relevant information, a pop-up reminder can be displayed again until the user has entered all the required information. It should be noted that the output method of the third prompt message is the same as that of the first prompt message mentioned above; it can be displayed via a pop-up window on the refrigerator screen or pushed synchronously to the associated app, allowing users to view and operate it promptly.

[0153] After seeing the prompt, the user can input the growth characteristics of the target fruit or vegetable through the input box on the refrigerator screen, the input interface of the associated APP, or voice interaction. After receiving the user's input, the controller first performs a preliminary verification, eliminating invalid information (such as unclear suitable growing areas or logical contradictions in the natural ripening season) to ensure the accuracy of the input. If invalid information is found, supplementary prompts will be output to guide the user to correct it. For example, if the fruit or vegetable placed in the compartment is star fruit, which is not included in the preset database, and the user inputs the following growth characteristics: name: star fruit; suitable growing areas: tropical and subtropical regions of South China (Guangdong, Guangxi, Hainan, etc.); natural ripening season: July to September, the controller verifies that the information is complete and logically reasonable, confirms its validity, and retains it.

[0154] After acquiring and verifying the growth characteristics information of the target fruits and vegetables input by the user, the seasonal attributes of the target fruits and vegetables are determined based on this information, combined with the current calendar time and the location of the refrigerator. The seasonal attributes refer to whether the target fruits and vegetables are in season or out of season in the current location of the refrigerator and the current calendar time. The determination logic is consistent with the logic of determining the out-of-season information of fruits and vegetables mentioned above, thus clarifying the seasonal attributes of the target fruits and vegetables.

[0155] Subsequently, based on the seasonal attributes of the target fruits and vegetables, the off-season information of fruits and vegetables in the storage compartment is updated. If other identifiable fruits and vegetables were already stored in the compartment, the updated off-season information is determined by combining the existing off-season information with the seasonal attributes of the target fruit and vegetable. If only the target fruit and vegetable exists in the compartment, the updated off-season information depends solely on the seasonal attributes of the target fruit and vegetable. Based on the updated off-season information, the corresponding control strategy is re-matched, and the preservation parameters in the compartment are adjusted to ensure that the preservation parameters are adapted to the preservation needs of all fruits and vegetables, including the target fruit and vegetable.

[0156] Finally, the growth characteristics of the target fruits and vegetables, their corresponding seasonal attributes, and the matching control strategies input by the user are stored together in a preset database. During storage, the growth characteristics of the target fruits and vegetables can be associated with the name input by the user, and their standard appearance feature parameters (which can be obtained based on the user's input name or supplemented by subsequent collection), standard internal component feature parameters, seasonal attributes, and corresponding control strategies can be stored. When the same type of fruits and vegetables are placed again, the recognition device can directly collect their feature parameters and compare them with the information stored in the database to achieve rapid recognition without requiring the user to input them again.

[0157] By establishing an emergency handling procedure for unrecognized fruits and vegetables, the system addresses the blind spot in preservation control caused by the inability to identify niche fruits and vegetables, thus improving the compatibility and practicality of preservation control methods. By outputting third-party prompts, the system guides users to accurately input the required information. The user-inputted information and its corresponding data are stored in a preset database, which is dynamically updated. As the number of user visits increases, the database continuously expands its collection of fruit and vegetable varieties, leading to improved accuracy and efficiency in subsequent recognition, reducing the need for further user input and enhancing the user experience.

[0158] According to embodiments of this disclosure, an embodiment of a refrigerator is provided, such as... Figure 7 , Figure 8 and Figure 9 As shown, the refrigerator 700 includes a compartment 701 for storing fruits and vegetables, an identification device 702, a temperature regulating device, a humidity regulating unit, a light source device 705, and a controller (not shown in the figure, which can be set in any position in the refrigerator, for example, it can be set in the top of the refrigerator, the specific position is not limited, and the control is the objective); the identification device 702, the temperature regulating device (temperature sensor 7031), the humidity regulating unit (humidifier 7041 and humidity sensor 7042), and the light source device 705 are all connected to the controller; the controller stores a preset database, which stores standard characteristic parameters and corresponding growth characteristic information of various sample fruits and vegetables; when the controller is configured to execute a computer program, it implements the refrigerator preservation control method as described in any one of the above.

[0159] This embodiment discloses a refrigerator with automated and intelligent fruit and vegetable preservation capabilities, which balances preservation effect and user experience. It can solve the technical problem that existing refrigerators have simple hardware structures and cannot achieve differentiated and accurate preservation of seasonal and off-season fruits and vegetables.

[0160] In some embodiments, the compartment is used for storing fruits and vegetables. This can be understood as an independent space for fruit and vegetable preservation, which can be set up separately from the refrigerator's crisper and freezer compartments, or as an independent zone within the crisper compartment. It can be equipped with sensors (such as infrared sensors or weight sensors) to detect when new fruits and vegetables are placed in or when existing fruits and vegetables are removed. This compartment allows for centralized storage of fruits and vegetables, facilitating information collection by identification devices and accurate adjustment of preservation parameters by various control devices. It avoids interference with preservation parameters caused by mixing with other foods. For example, the compartment can store lychees, cherries, star fruit, and other fruits and vegetables separately, ensuring targeted preservation control.

[0161] In some embodiments, the identification device is used to collect image information and / or spectral information of fruits and vegetables stored in the room. The identification device integrates a camera and a spectral sensor. The camera is used to capture the appearance image of the fruits and vegetables, such as their color, shape, size, and surface texture. The spectral sensor is used to collect the near-infrared spectral information of the fruits and vegetables, penetrating the surface of the fruits and vegetables to obtain internal component characteristics such as sugar content, vitamin content, and water content. The collected information is transmitted to the controller in real time, and the controller completes the feature parameter extraction and comparison and matching with a preset database.

[0162] In some embodiments, the temperature control device, such as a variable frequency compressor and a temperature sensor, is used to receive control commands from the controller and adjust the temperature parameters inside the compartment, including the temperature setpoint and temperature fluctuation range, to adapt to the temperature control requirements of the first working mode and the second working mode (enhanced mode and reduced mode). The controller controls the operating power of the variable frequency compressor based on the temperature information collected in real time by the temperature sensor, so as to avoid excessive temperature fluctuations from affecting the preservation of fruits and vegetables.

[0163] In some embodiments, the humidity control unit is used to adjust the humidity parameters in the room, including the humidity setpoint and humidity control accuracy. It includes a humidification device and a humidity sensor. The humidity sensor collects the humidity information in the room in real time and feeds it back to the controller. The controller controls the operation of the humidification device according to the control requirements to maintain the humidity in the room within a preset range, ensuring that the fruits and vegetables maintain sufficient moisture and reducing nutrient loss.

[0164] In some embodiments, the light source device is used to adjust the illumination parameters within the chamber, including the light wavelength, light intensity, and illumination duration. For example, an adjustable LED light source can be used to flexibly adjust the illumination parameters according to the controller's instructions, simulating the illumination environment for seasonal fruit and vegetable growth and adapting to the illumination control requirements of the first and second working modes. For instance, in the off-season lychee enhancement mode, the controller controls the light source device to adjust the light intensity to 1800-2000 lx, the illumination duration to 11-13 hours / day, and the light wavelength to 450-700 nm, compensating for insufficient ambient light. In the first working mode for seasonal apples, the light intensity is adjusted to 1000-1200 lx to meet the preservation requirements of apples.

[0165] In some embodiments, a positioning module and a time module can also be installed inside the refrigerator, or a controller can be used to synchronize the location and time. For example, the positioning module can be used to obtain the geographical location information of the refrigerator's location, and can use a GPS positioning module or a network positioning module. It can automatically synchronize the province, city, and district information of the refrigerator's current location, obtain the climate condition information of the region, and transmit it to the controller in real time, providing basic data for region matching and climate matching in the determination of off-season information. The time module can be used to obtain the current calendar time, automatically synchronize the network time to ensure the accuracy of the time information, and transmit the current date and time information to the controller in real time, providing basic data for time comparison in the determination of off-season information.

[0166] The controller has a built-in processor and memory. The memory stores a preset database and a computer program. The preset database stores standard characteristic parameters and corresponding growth characteristic information of various sample fruits and vegetables, including common fruits and vegetables (lychee, cherry, apple, mango, etc.) and niche fruits and vegetables (star fruit, wax apple, etc.), and can be dynamically updated and improved based on user input. When the controller is configured to execute the computer program, it calls the feedback information of each hardware module and sequentially executes the preservation control method described in the previous embodiment.

[0167] This embodiment of the invention achieves accurate control of preservation parameters through the coordinated operation of a temperature control device, a humidity control unit, and a light source, adapting to the differentiated needs of seasonal and off-season fruits and vegetables. Furthermore, it eliminates the need for manual user intervention, improving the preservation effect of fruits and vegetables, extending their storage period, enhancing the edible quality of off-season produce, and reducing user operating costs. The integrated design of each hardware module is compact and highly efficient, ensuring the stability and accuracy of preservation control. Compared to existing ordinary refrigerators, this refrigerator is more targeted and practical, meeting users' precise preservation needs for different fruits and vegetables and improving the user experience.

[0168] In some embodiments, it is still as follows Figure 7 , Figure 8 and Figure 9 As shown, the refrigerator 700 also includes a refrigerator compartment 800, with compartment 701 located inside the refrigerator compartment 800; the humidity control unit includes a humidifier 7041 and a humidity sensor 7042, and the temperature control device includes a temperature sensor 7031; the humidifier 7041, the light source device 705, and the identification device 702 are integrated on the top of compartment 701.

[0169] In some embodiments, it is still as follows Figure 7 , Figure 8 and Figure 9 As shown, the refrigerator 700 has power terminals 706 on the outside of the cabinet, which are respectively connected to the humidification device 7041 and the light source device 705, for supplying power to the humidification device 7041 and the light source device 705.

[0170] like Figure 10 As shown, a moisture-permeable membrane assembly 900 is provided in the compartment 701. The moisture-permeable membrane assembly 900 works in conjunction with the humidity control unit (i.e., the humidification device 7041 and the humidity sensor 7042) to remove excess moisture from the compartment.

[0171] Specifically, the refrigerator also includes a refrigerator compartment, which serves as the refrigerator's storage space for storing foods requiring low-temperature preservation. The previously mentioned compartment for storing fruits and vegetables can be integrated into the refrigerator compartment, forming an independent fruit and vegetable preservation zone within the refrigerator compartment. This layout design not only utilizes the low-temperature environment of the refrigerator compartment to provide a basic temperature guarantee for fruit and vegetable preservation, but also allows for separate storage of fruits and vegetables from other foods through the independent setting of the compartments. This facilitates the accurate application of various control components to fruits and vegetables, reduces the impact on other areas of the refrigerator compartment, and improves the targeted preservation effect.

[0172] The humidity control unit includes a humidifier and a humidity sensor. The humidity sensor collects real-time humidity information from the room and continuously transmits the collected real-time humidity data to the controller. The controller compares the real-time humidity with the preset humidity setpoint and humidity control accuracy, and outputs control commands to control the start, stop, and operating power of the humidifier. The temperature control unit includes a temperature sensor, which works in conjunction with the inverter compressor mentioned earlier. The temperature sensor collects real-time temperature information from the room and feeds it back to the controller. The controller controls the temperature setpoint and temperature fluctuation range within the room to prevent temperature fluctuations from affecting the preservation of fruits and vegetables.

[0173] In terms of component layout, the humidification device, light source device, and recognition device are integrated into the top of the compartment, saving storage space inside the compartment and improving the space utilization of the compartment; the recognition device (camera + spectral sensor) is set at the top, which can collect image information and spectral information of all fruits and vegetables in the compartment from all directions, avoiding inaccurate recognition due to obstruction; the light source device is set at the top, which can achieve uniform coverage of light in the compartment and improve the uniformity of light control; the humidification device is set at the top, which can make water vapor diffuse evenly into the compartment and improve the uniformity of humidity control.

[0174] The compartment is also equipped with a moisture-permeable membrane assembly. This assembly works in conjunction with the humidity control unit to expel excess moisture from the compartment, optimizing humidity control and solving the technical problem of excessive humidity and moisture accumulation that can lead to condensation and rotting on fruits and vegetables when relying solely on humidifiers. The moisture-permeable membrane assembly can be made of a breathable but waterproof material, allowing moisture from the compartment to escape through the membrane to the outside (i.e., the refrigerator compartment), while preventing external moisture from entering the compartment. If the real-time humidity detected by the humidity sensor exceeds the preset humidity limit, and the humidifier has stopped operating but still cannot reduce the humidity, the controller activates the moisture-permeable membrane assembly to accelerate the expulsion of excess moisture from the compartment until the humidity drops to the preset range, at which point the membrane assembly stops working. When the humidity is within the preset range, the membrane assembly is in standby mode to avoid unnecessary energy consumption.

[0175] In some embodiments, it is still as follows Figure 7 , Figure 8 and Figure 9 As shown, a glass shelf 801 is provided on the upper part of the cold storage compartment 800, and a sealing cover 802 is provided between the compartment 701 and the glass shelf 801; the sealing cover 802 is a detachable structure, and the humidification device 7041, the water spray nozzle 7043 of the humidification device 7041, the light source device 705, and the identification device 702 are all integrated on the side of the sealing cover 802 facing the compartment 701; the sealing cover 802 and the upper edge of the compartment 701 form a sealing fit.

[0176] In some embodiments, a glass shelf is provided on the upper part of the refrigerator compartment. The glass shelf can hold food that needs to be refrigerated and provides an installation base for the fruit and vegetable compartment and the sealing cover. The material can be high-strength tempered glass. The glass shelf is horizontally fixed to the inner wall of the upper part of the refrigerator compartment. The installation height can be flexibly adjusted according to actual needs to ensure that sufficient installation gap is reserved between the glass shelf and the compartment for the sealing cover.

[0177] The compartment is located inside the refrigerator and below the glass shelves. A sealing cover is installed between the compartment and the glass shelves to achieve airtight isolation between the compartment and other areas of the refrigerator, preventing the temperature, humidity and light inside the compartment from diffusing outwards, preventing cold air and moisture from entering the compartment, and improving the accuracy of control.

[0178] The sealing cover features a detachable structure, balancing flexibility and ease of maintenance: when users need to add or remove fruits and vegetables, or clean the compartment, maintain the humidifier, light source, or identification device, the sealing cover can be easily removed; after the fruits and vegetables are placed in, the sealing cover can be reset to seal the compartment and ensure stable preservation parameters. For example, the edge of the sealing cover has elastic buckles, and the upper edge of the compartment has corresponding buckle grooves. The engagement of the buckles and buckle grooves allows for quick installation and removal of the sealing cover, ensuring stability after installation.

[0179] In some embodiments, the humidification device, light source device, and identification device are all integrated on the side of the sealing cover facing the compartment. Compared with the previous method of integrating each device on the top of the compartment, this layout design can make full use of the space of the sealing cover without occupying additional storage space inside the compartment, thereby further increasing the storage capacity of fruits and vegetables in the compartment. Secondly, each device is integrated on the sealing cover and can be disassembled synchronously with the sealing cover, reducing maintenance costs. Thirdly, each device is set on the side facing the compartment, which can directly act on the fruits and vegetables inside the compartment, reducing the loss of light and water vapor and improving the control efficiency. For example, the identification device can collect information about fruits and vegetables at close range and without obstruction, the light source device can directly project uniform light into the compartment, and the humidification device can directly release water vapor into the compartment.

[0180] The sealing cover forms a tight seal with the upper edge of the compartment, ensuring effective airtightness. A flexible sealing strip, made of food-grade silicone, is positioned around the edge of the sealing cover. This strip offers excellent elasticity, sealing properties, and low-temperature resistance. Once the sealing cover is reinstalled, the flexible sealing strip adheres closely to the upper edge of the compartment, creating a seamless seal. This effectively prevents the flow of air and moisture between the inside and outside of the compartment, avoiding fluctuations in temperature and humidity due to inadequate sealing.

[0181] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this disclosure.

[0182] This disclosure also provides an electronic device, which includes one or more processors and a memory;

[0183] The memory is coupled to one or more processors. The memory is used to store computer programs (such as computer program code). The computer programs include computer instructions. The one or more processors call the computer instructions to cause the electronic device to perform the aforementioned refrigerator preservation control method.

[0184] Figure 11This is a schematic diagram of the structure of an electronic device provided in an embodiment of this disclosure. The electronic device 1100 can be a mobile phone, smart screen, tablet computer, wearable electronic device, in-vehicle electronic device, augmented reality (AR) device, virtual reality (VR) device, laptop computer, ultra-mobile personal computer (UMPC), netbook, personal digital assistant (PDA), projector, or a communication device such as a server, storage device, or base station, or a smart car, etc. This disclosure does not limit the specific type of electronic device.

[0185] The memory 1101 can be used to store computer programs 1102 (i.e., computer software programs) and virtual software modules. The processor 1103 executes various functional applications and data processing of the electronic device by running the computer programs and virtual software modules stored in the memory 1101. The memory 1101 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device (such as audio data, telephone book, etc.). In addition, the memory 1101 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0186] The processor 1103 may include one or more processors such as a central processing unit (CPU), an application processor (AP), and a baseband processor. The processor can serve as the nerve center and command center of the wireless router. The processor 1103 can generate operation control signals based on instruction opcodes and timing signals to control instruction fetching and execution. The memory 1101 can be used to store executable program code, including instructions. The processor 1103 executes various functional applications and data processing of the network device by running the instructions stored in the memory. The memory 1101 may include a program storage area and a data storage area, such as storing data for audio signals to be played. For example, the memory may be Double Data Rate Synchronous Dynamic Random Access Memory (DDR) or Flash memory.

[0187] This disclosure also provides a computer-readable storage medium storing computer instructions; when the computer-readable storage medium is used on an electronic device, it causes the electronic device to perform the aforementioned refrigerator preservation control method.

[0188] The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or can include one or more data storage devices such as servers or data centers that can be integrated with media. The available medium can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media, or semiconductor media (e.g., solid-state disks (SSDs)).

[0189] This disclosure also provides a computer program product containing computer instructions, which, when run on an electronic device, enables the electronic device to execute the aforementioned refrigerator preservation control method.

[0190] The computer storage medium and computer program product provided in the above-described embodiments are used to execute the methods provided above. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects corresponding to the methods provided above, and will not be repeated here.

[0191] In the above embodiments, implementation can also be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line, DSL) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer, or a data storage device such as a server or data center that integrates one or more available media. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc., and the storage medium can also include combinations of the above types of memory.

[0192] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0193] In the embodiments provided in this disclosure, it should be understood that the disclosed apparatus / network devices and methods can be implemented in other ways. For example, the apparatus / network device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling or direct coupling or communication connection may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0194] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0195] The above-described embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure, and should all be included within the protection scope of this disclosure.

Claims

1. A method for controlling the freshness of a refrigerator, characterized in that, The refrigerator is provided with a compartment for storing fruits and vegetables, and the method includes: The growth characteristics information of the fruits and vegetables stored in the room is obtained, and the growth characteristics information is used to characterize the suitable growing areas and natural ripening season of the fruits and vegetables. By combining the current calendar time, the location of the refrigerator, the suitable growing area of ​​the fruits and vegetables and their natural ripening season, the off-season information of the fruits and vegetables stored in the compartment is determined. The off-season information is used to characterize whether the compartment contains off-season fruits and vegetables. Based on the off-season fruit and vegetable information, and following a control strategy compatible with off-season fruits and vegetables, the preservation parameters within the storage compartment are adjusted, including: If the compartment does not contain the off-season fruits and vegetables, then according to the control strategy that matches the seasonal fruits and vegetables: control at least one of the refrigerator's light source device, temperature control device and humidification device, and adjust the preservation parameters of the compartment in the first working mode. If the chamber contains the off-season fruits and vegetables, then according to the control strategy matching the off-season fruits and vegetables: control at least one of the light source device, temperature control device and humidification device to adjust the preservation parameters in the chamber in the second working mode; wherein, the first working mode and the second working mode are respectively matched with at least one of different light programs, suitable temperature ranges and suitable humidity ranges.

2. The method according to claim 1, characterized in that, The process of obtaining the growth characteristic information of the fruits and vegetables stored in the room includes: Acquire image information and / or spectral information of the fruits and vegetables stored in the room; Based on the image information, the appearance feature parameters of the fruits and vegetables are extracted and / or based on the spectral information, the internal component feature parameters of the fruits and vegetables are extracted. The appearance feature parameters include at least one of color, shape, size and surface texture, and the internal component feature parameters include at least one of sugar content, vitamin content and moisture content. The appearance feature parameters and / or internal component feature parameters are compared and matched with a preset database to obtain the growth characteristic information of the fruits and vegetables; The preset database stores standard characteristic parameters of various sample fruits and vegetables, as well as growth characteristic information corresponding to the standard characteristic parameters. The standard characteristic parameters include standard appearance characteristic parameters and standard internal component characteristic parameters.

3. The method according to claim 1, characterized in that, The process of determining the off-season information of the fruits and vegetables stored in the compartment by combining the current calendar time, the region where the refrigerator is located, the suitable growing region of the fruits and vegetables, and their natural ripening season includes: If the refrigerator is located outside the suitable growing area of ​​any of the fruits and vegetables in the room, or if the climate conditions of the refrigerator's location do not match the suitable growing climate zone of any of the fruits and vegetables, then the room is determined to contain off-season fruits and vegetables. If the refrigerator is located within the suitable growing area of ​​all fruits and vegetables in the room, and the climate conditions of the refrigerator's location match the suitable growing climate zone of all fruits and vegetables, then the current calendar time is compared with the natural ripening season of all fruits and vegetables. If the current calendar time falls within the natural ripening season of all the fruits and vegetables, then it is determined that the room does not contain off-season fruits and vegetables; If the current calendar time exceeds the natural ripening season of any of the fruits and vegetables, or if the fruits and vegetables cannot grow naturally in the area where the refrigerator is located at the current calendar time, then it is determined that the compartment contains off-season fruits and vegetables.

4. The method according to claim 1, characterized in that, The preservation parameters include at least one of temperature parameters, humidity parameters, and light parameters. The light parameters include light wavelength, light intensity, and light duration. The temperature parameters include temperature setpoint and temperature fluctuation range. The humidity parameters include humidity setpoint and humidity adjustment accuracy. The first working mode is: based on the type and growth characteristics of the seasonal fruits and vegetables in the room, match at least one of the following: a first light program, a first suitable temperature range, and a first suitable humidity range; The second working mode is: based on the type and growth characteristics of the off-season fruits and vegetables in the room, match at least one of the following: a second light program, a second suitable temperature range, and a second suitable humidity range.

5. The method according to claim 4, characterized in that, The second working mode includes an enhanced mode and a reduced mode. Adjusting the preservation parameters within the compartment using the second working mode includes: The system obtains a first environmental parameter corresponding to the current calendar time and a second environmental parameter corresponding to the natural ripening season of the off-season fruits and vegetables. The first environmental parameter includes the current ambient light intensity, ambient temperature, and ambient humidity of the area where the refrigerator is located. The second environmental parameter includes the average light intensity, average temperature, and average humidity of the off-season fruits and vegetables during their natural ripening season in a suitable growing area. When the first environmental parameter is lower than the corresponding second environmental parameter, and the difference between the first environmental parameter and the second environmental parameter exceeds a preset deviation threshold, at least one of the light source device, the temperature adjustment device and the humidification device is controlled to adjust the preservation parameters in the compartment in an enhanced mode. When the first environmental parameter is higher than the corresponding second environmental parameter, and the difference between the first environmental parameter and the second environmental parameter exceeds a preset deviation threshold, at least one of the light source device, the temperature adjustment device, and the humidification device is controlled to adjust the preservation parameters in the compartment in a reduced mode.

6. The method according to claim 5, characterized in that, After adjusting the preservation parameters within the compartment using an enhanced mode, the method further includes: At each first predetermined time interval, image information and / or spectral information of off-season fruits and vegetables in the room are re-acquired; Based on the reacquired image information and / or spectral information, the edible quality indicators of the off-season fruits and vegetables are determined, and the edible quality indicators include at least one of sugar content, vitamin content, hardness and color. When the edible quality indicators of the off-season fruits and vegetables reach the preset optimal edible quality indicator threshold, a first prompt message is output, and at least one of the refrigerator's light source, temperature control device, and humidification device is controlled to switch from the enhanced mode to the first working mode, adjusting the preservation parameters within the compartment. The optimal edible quality index threshold is consistent with the edible quality index of the corresponding seasonal fruits and vegetables. The first prompt information is used to prompt the user the estimated time for the off-season fruits and vegetables to reach the optimal edible quality, and the remaining shelf life after reaching the optimal edible quality.

7. The method according to claim 4, characterized in that, After adjusting the preservation parameters within the compartment in the second operating mode, the method further includes: In response to receiving a control priority switching command, at least one of the light source device, the temperature control device, and the humidification device is controlled to switch from the second working mode to the first working mode to adjust the preservation parameters in the compartment; The first working mode remains in a continuous state until a control priority switching instruction is received again, or when a change in the type or season of fruits and vegetables in the room is detected, the control priority is automatically re-determined.

8. The method according to any one of claims 1 to 7, characterized in that, The method further includes: Every second predetermined time interval, or when an event of new fruits and vegetables being placed in the room or an event of existing fruits and vegetables being removed is detected, the growth characteristic information of all fruits and vegetables in the room is reacquired. Retrieve the current calendar time and the third environmental parameters of the area where the refrigerator is located, including ambient light intensity, ambient temperature and ambient humidity; Based on the newly acquired growth characteristic information, the current calendar time, the location of the refrigerator, and the third environmental parameters, the off-season information of fruits and vegetables in the compartment is re-determined; Based on the newly determined off-season information of fruits and vegetables, the corresponding control strategy is re-matched, and the preservation parameters in the compartment are adjusted based on the control strategy.

9. The method according to any one of claims 1 to 7, characterized in that, The method further includes: If the growth characteristics of the fruits and vegetables in the room cannot be identified based on the preset database, a third prompt message is output. The third prompt message is used to prompt the user to input the growth characteristics of the target fruits and vegetables, which are the fruits and vegetables in the room whose growth characteristics cannot be identified. Based on the growth characteristics information of the target fruits and vegetables input by the user, combined with the current calendar time and the location of the refrigerator, the seasonal type of the target fruits and vegetables is determined. The off-season information of fruits and vegetables in the compartment is updated based on the seasonal type of the target fruits and vegetables, and the preservation parameters in the compartment are adjusted according to the corresponding control strategy matched with the updated off-season fruits and vegetables. The growth characteristics, corresponding seasonal attributes, and control strategies of the target fruits and vegetables input by the user are stored in the preset database.

10. A refrigerator, characterized in that, The refrigerator includes a compartment for storing fruits and vegetables, an identification device, a temperature control device, a humidity control unit, a light source device, and a controller; the identification device, temperature control device, humidity control unit, and light source device are all connected to the controller; the controller stores a preset database containing standard characteristic parameters and corresponding growth characteristic information of various sample fruits and vegetables; when the controller is configured to execute a computer program, it implements the refrigerator preservation control method as described in any one of claims 1 to 9.

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