CN113932558B - How to determine the shelf life of food in the refrigerator - Google Patents

Abstract

The present application provides a method for determining the shelf life of ingredients in a refrigerator. The method includes: determining the expected storage shelf life of the ingredients in the storage room according to the type of ingredients stored in the refrigerator storage room; determining the shelf life deviation value of the food material according to the changes in the storage room environment during the storage period of the food material; calculating the shelf life of the food material according to the expected storage shelf life and the shelf life deviation value. The technical solutions of the embodiments of the present application can improve the accuracy of estimating the shelf life of ingredients in the storage room of the refrigerator.

Description

How to determine the shelf life of food in the refrigerator

technical field

The present application relates to the technical field of household appliances, in particular to a method for determining the shelf life of ingredients in a refrigerator.

Background technique

With the development of society and the continuous improvement of people's living standards, people's pace of life is getting faster and faster. Therefore, people are more and more willing to buy more food materials and store them in refrigerators. Refrigerators have become one of the indispensable household appliances in people's daily life.

However, the following problems often arise when a large amount of ingredients are stored in the refrigerator: due to changes in the environment in the refrigerator, the actual shelf life of the ingredients will differ from the expected storage shelf life, resulting in people being unable to accurately estimate the shelf life of the ingredients, which in turn leads to the inability to take the food within the estimated shelf life, resulting in waste.

Therefore, how to improve the accuracy of estimating the shelf life of ingredients in the refrigerator has always been a problem that those skilled in the art are working hard to solve.

The above information disclosed in this Background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not form the prior art that is already known in the art to a person of ordinary skill in the art.

Contents of the invention

An object of the present application is to improve the accuracy of estimating the shelf life of ingredients in a refrigerator storage room.

In order to solve the above-mentioned technical problems, the present application adopts the following technical solutions: according to the types of ingredients stored in the refrigerator storage room, determine the expected storage shelf life of the ingredients in the storage room; during the storage period of the ingredients, according to the changes in the environment of the storage room, determine the deviation value of the shelf life of the ingredients; calculate the shelf life of the ingredients according to the expected storage shelf life and the deviation value of the shelf life, so that it can be corrected on the basis of the expected storage shelf life according to the changes in the storage room environment, so that the estimation of the shelf life of the ingredients in the refrigerator storage room is more accurate.

In some embodiments, determining the expected storage shelf life of the food in the storage room according to the type of food stored in the refrigerator storage room includes: acquiring the type of food stored in the refrigerator storage room, and acquiring environmental information in the storage room when the food is stored in the storage room; determining the expected storage shelf life of the food material according to the type of food material and environmental information, and the environmental information includes at least temperature information.

In some embodiments, according to the type of food material and the environmental information, determining the expected storage shelf life of the type of food material includes: obtaining the expected storage shelf life of the type of food material under the environmental information from the database, and the database has a correspondence between the combination of the type of food material and the environmental information, and the expected storage shelf life.

In some embodiments, determining the deviation value of the shelf life of the food material according to the change of the environment in the storage room includes: obtaining one or more factors affecting the shelf life in the storage room; acquiring the changes corresponding to one or more factors affecting the shelf life of the type of food material; determining the deviation value of the shelf life corresponding to the influencing factor according to the corresponding relationship between the change situation corresponding to the preset influencing factors and the deviation value of the shelf life; obtaining the influence weight of each influencing factor on the shelf life of the food material; The corresponding impact weight is used to calculate the deviation value of the shelf life of the ingredients.

In some embodiments, determining the deviation value of the shelf life of the food material according to the change of the environment in the storage room includes: according to the type of food material stored in the storage room of the refrigerator, determining the suitable storage environment of the food material of the type; acquiring the change of the environment in the storage room relative to the storage environment adapted to the food material corresponding to the type of food material during the storage period of the food material of the type, and determining the deviation value of the shelf life of the food material.

In some embodiments, adapting to the storage environment includes an appropriate storage temperature, and the method further includes: monitoring the temperature in the storage room; when the difference between the temperature in the storage room and the suitable storage temperature of the ingredients is greater than a preset deviation value, a storage risk warning is issued.

In some embodiments, the environmental information of the storage room environment includes one or more of temperature information, humidity information, microbial content information, and oxygen content information. In some embodiments, after calculating the shelf life of the ingredients according to the estimated storage shelf life and the shelf life deviation value, the method further includes: establishing a shelf life database of the ingredients stored in the storage room, the shelf life database has a corresponding relationship between the ingredients and the shelf life of the ingredients; according to the shelf life database, sending a reminder of the expiry of the shelf life of the food that is about to expire.

In some embodiments, after establishing the shelf life database of the ingredients stored in the storage room, the method further includes: updating the shelf life database every preset time interval, and the preset time interval is less than 24 hours.

In some embodiments, the method further includes: after the shelf life database is updated, sending the ingredients and the shelf life corresponding to the ingredients to the predetermined electronic device.

As can be seen from the foregoing technical scheme, the beneficial effects of the present application are:

In the present application, after the ingredients are stored in the refrigerator, the expected storage shelf life of the ingredients is first determined, and during the storage of the ingredients, the deviation value of the shelf life is obtained according to the changes in the environment in the refrigerator, so as to correct the expected storage shelf life, so as to obtain the shelf life corresponding to the actual storage environment of the ingredients.

It is to be understood that both the foregoing general description and the following detailed description are exemplary only and are not restrictive of the application.

Description of drawings

The above-mentioned advantageous effects and other objects, features, and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings.

Fig. 1 is a perspective view of a specific implementation method of a refrigerator 100 according to an embodiment of the present application;

Fig. 2 is a flowchart of a method for determining the shelf life of ingredients in a refrigerator according to an embodiment of the present application;

FIG. 3 is a flowchart of an exemplary embodiment of step S210 in FIG. 2;

Fig. 4 is a structural block diagram of a device for determining the shelf life of ingredients in a refrigerator according to an embodiment of the present application.

Detailed ways

Although the present application can be easily expressed in different forms of implementation, only some of the specific implementations are shown in the drawings and will be described in detail in this specification. At the same time, it can be understood that this specification should be regarded as an exemplary description of the principles of the application, and is not intended to limit the application to what is described here.

Therefore, a feature indicated in this specification will be used to describe one of the features of an embodiment of the application, rather than implying that every embodiment of the application must have the described feature. Furthermore, it should be noted that this specification describes a number of features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly described. Thus, the illustrated combinations are not intended to be limiting unless otherwise stated.

In the embodiments shown in the drawings, directional designations (such as up, down, left, right, front and rear) are used to explain that the structure and movement of the various elements of the application are not absolute but relative. These descriptions are applicable when the elements are in the positions shown in the drawings. If the indications of the positions of these elements are changed, the indications of these directions are changed accordingly.

Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of this application will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted.

First introduce the refrigeration system of the refrigerator.

The refrigeration system of the refrigerator is used to provide cold air to the refrigerator compartment and the freezer compartment. The refrigeration system includes at least a compressor, a condenser, a pressure reducing tube and an evaporator. There is a closed-loop passage in the refrigeration system, and the passage is used for refrigerant circulation. The heat in the storage room of the refrigerator is released to the external environment of the refrigerator through the phase change of the refrigerant. The refrigeration process is as follows: the compressor provides power for the refrigerant cycle, and the compressor compresses the refrigerant into high-temperature and high-pressure superheated steam. After being discharged from the exhaust port of the compressor, it enters the condenser. It turns into a saturated gas, and in the process of changing the liquid refrigerant into a gas, it absorbs the heat of the storage room, thereby realizing refrigeration.

The preferred implementation modes of the present application will be further described in detail below in conjunction with the accompanying drawings of the present specification.

Fig. 1 is a perspective view of a specific implementation method of a refrigerator 100 according to an embodiment of the present application.

Please refer to FIG. 1 , the refrigerator of this embodiment has an approximately rectangular parallelepiped shape. The appearance of the refrigerator is defined by a storage room defining a storage space and a plurality of doors 130 disposed on the storage room. Wherein, the door body includes a door shell on the outside of the refrigerator, an inner container on the inner side, and an insulating layer between the door shell and the inner container. Usually, the thermal insulation layer is filled with foam material.

The storage compartment is a cavity with an opening, and generally, the storage compartment is divided into a lower freezing compartment 110 and an upper refrigerating compartment 120 . Each of the divided spaces may have a separate storage space. In detail, the freezer compartment 110 may have a plurality of individual storage spaces that can be opened or closed in a drawer type. A variable temperature chamber 121 may be provided on the lower side of the refrigerating chamber 120, and the variable temperature chamber may also be opened or closed in a drawer type. The freezer compartment 110 and the refrigerator compartment 120 can be selectively opened or closed through pivotable doors.

In addition, the refrigerator has a controller, and the controller is used to implement the refrigerator control method. The refrigerator control method is not only used to control the refrigeration system of the refrigerator to provide cold air to the refrigerator and freezer, but also has a series of additional functions. In the present application, the controller of the refrigerator is also used to estimate the shelf life of the ingredients stored in the storage room, and the technical solutions of the embodiments of the application can improve the accuracy of estimating the shelf life of the ingredients.

The implementation details of the technical solutions of the embodiments of the present application are described in detail below.

Fig. 2 is a flow chart of a method for determining the shelf life of ingredients in a refrigerator according to an embodiment of the present application. Please refer to FIG. 2 , in this embodiment, the method for determining the shelf life of ingredients in the refrigerator executed by the controller includes at least the following steps S210 to S230.

Step S210, according to the types of ingredients stored in the storage room of the refrigerator, determine the expected storage shelf life of the ingredients in the storage room.

Firstly, it is necessary to obtain the types of ingredients in the storage room of the refrigerator. In one embodiment, the refrigerator may have an input device, which may be directly installed on the refrigerator, or an electronic device interconnected with the refrigerator, through which the user may input the types of ingredients. In one embodiment, an order uploaded by the user for purchasing food materials can also be received, and the type of food material can be obtained by identifying the food material in the order.

In another embodiment, when the user opens the door of the refrigerator, the refrigerator can also send out questions such as whether to store food, what kind of food is stored, etc. to obtain the type of food.

The refrigerator can also obtain the types of ingredients in other ways. Schematically, a camera in the storage room of the refrigerator can take pictures of the ingredients, and then identify the types of ingredients based on the captured images of the ingredients.

In another embodiment, the refrigerator can also have multiple food labels, which can be predefined or customized. When storing food, the user attaches a label for identifying the type of food to the food, so that the type of food in the refrigerator can be easily obtained.

After the refrigerator obtains the types of ingredients in the storage room of the refrigerator, the expected storage shelf life of the ingredients in the storage room is determined according to the types of ingredients.

Wherein, the estimated storage shelf life is different from the shelf life of the ingredients, and the estimated storage shelf life refers to the freshness period of the type of ingredients stored in the refrigerator storage room. It is easy to understand that the expected storage shelf life is closely related to the environment of the refrigerator storage room.

In one embodiment, the environmental information in the storage room may be acquired after the type of the ingredients is acquired. The environmental information in the storage room can include one or more of humidity information, temperature information, oxygen content and other information, so as to obtain various environmental information stored in the food materials, so as to obtain the actual environment in the storage room through various environmental information. After the type of ingredients and the actual environment of the refrigerator are determined, the estimated shelf life of the type of ingredients in the actual environment can be obtained. Schematically, the expected storage shelf life of this type of food material in the actual environment can be obtained from historical data in the Internet. The expected storage shelf life can also be corrected according to the actual storage situation, so that the subsequent data is more accurate.

In some embodiments, according to the type of food material and the environmental information, determining the expected storage shelf life of the type of food material may specifically include: obtaining the expected storage shelf life of the type of food material under the environmental information from the database, wherein the database has a combination of the type of food material and the environmental information, and the corresponding relationship between the expected storage shelf life.

Step S220, during the storage period of the food, according to the change of the environment in the storage room, determine the deviation value of the shelf life of the food.

Since the expected storage shelf life is closely related to the environment in the storage room of the refrigerator, the deviation value of the shelf life of the ingredients can be determined by monitoring the changes in the environment in the storage room. The shelf life deviation value is a deviation value relative to the expected storage shelf life in step S210.

Firstly, it is necessary to obtain the change of the environment in the storage room. Specifically, the temperature information in the storage room can be acquired through a temperature sensor installed in the storage room, so as to obtain the change of the temperature in the storage room during the storage period of the type of food material. It is easy to understand that in the case of severe temperature changes, the shelf life deviation will increase. The number of temperature sensors can be one or more. Correspondingly, the humidity change information in the storage room can be obtained through the humidity sensor installed in the storage room, the oxygen concentration change information in the storage room can be obtained through the oxygen concentration sensor in the storage room, and so on.

After the changes of one or more shelf life influencing factors are obtained, the shelf life deviation value of the food material can be obtained comprehensively according to the impact of the changes of each shelf life influencing factor on the shelf life of the type of food material.

Since food items usually have a longer fresh-keeping period in a low-temperature environment, in one embodiment, the environmental information includes at least temperature information, so that after the type of food material is determined, according to the temperature in the storage room, the expected storage shelf life of the food material of this type at this temperature is determined.

Step S230, calculating the shelf life of the ingredients according to the expected storage shelf life and the shelf life deviation value.

After obtaining the expected storage shelf life and the shelf life deviation value, it is easy to get the shelf life of the ingredients.

Therefore, after the ingredients are stored in the refrigerator, the expected shelf life of the ingredients is first determined, and during the storage of the ingredients, the deviation value of the shelf life is obtained according to the actual environment in the refrigerator, so as to correct the expected shelf life, so as to obtain the shelf life corresponding to the ingredients and the actual storage environment.

FIG. 3 is a flowchart of an exemplary embodiment of step S210 in FIG. 2 . Please refer to FIG. 3 , in this embodiment, the step S210 may at least include the following steps S310 to S350.

Step S310, according to the type of the food, one or more factors affecting the shelf life of the food in the storage room are acquired.

Schematically, if the ingredients are fruits or vegetables, the higher the humidity, the better for the storage of the ingredients; if the ingredients are dry goods, when the humidity is too high, it will cause the dry goods to become damp and deteriorate, and the taste will be agglomerated, which will not only affect the taste, but also harmful to health if eaten; if the ingredients are canned dairy products, then the humidity is relatively small for the canned dairy products. Therefore, according to the type of ingredients, different influencing factors can be selected to estimate the shelf life.

In step S320, changes corresponding to one or more shelf life influencing factors are obtained.

Step S330, according to the correspondence relationship between the preset changes corresponding to the influencing factors and the deviation value of the shelf life, determine the deviation value of the shelf life corresponding to the influencing factor.

After the type of the food is acquired, the deviation value of the shelf life of the food can be determined according to the change of one or more factors affecting the shelf life in the storage room. Specifically, the deviation value of the shelf life can be determined through the corresponding relationship between the changes of the preset influencing factors and the deviation value of the shelf life. For example, the expected storage shelf life of pork at 4°C is 2 days, and the estimated shelf life at -18°C is 42 days. Then, according to the change of the actual temperature in the storage room relative to 4°C or -18°C, the influence of temperature change on the deviation value of the shelf life can be obtained. In one embodiment, when the expected storage shelf life is obtained according to the temperature in the refrigerator when the food is stored in the refrigerator, the deviation value of the shelf life corresponding to the temperature change can be determined according to the temperature change in the refrigerator relative to the temperature in the refrigerator when the food is stored in the refrigerator during the food storage period. For example, according to the temperature curve, the proportion of the temperature abnormal time to the total storage time can be obtained. The longer the temperature abnormal time is, the greater the shelf life deviation will be.

Step S340, obtaining the influence weight of each influencing factor on the shelf life of the ingredients.

Step S350, calculating the shelf life deviation value of the food material according to the shelf life deviation value corresponding to one or more influencing factors and the influence weight corresponding to each influencing factor.

As mentioned above, after obtaining the changes of one or more shelf life influencing factors, the shelf life deviation value of the food material is obtained comprehensively according to the impact of the changes of each shelf life influencing factor on the shelf life deviation value of the type of food material.

Specifically, different influence factors may have different influence weights on different types of ingredients. Therefore, in this embodiment, the influence weight of each influencing factor on the shelf life of the ingredients is also considered. For example, according to experiments, the influence weight of temperature on a certain type of food is N1, and the weight of humidity’s influence on this type of food is N2. When the deviation value of shelf life corresponding to temperature is T1 and the deviation value of shelf life corresponding to humidity is T2, the comprehensive deviation value T of various environmental factors can be obtained, which is T=N1*T1+N2*T2.

Thus, the deviation value of the shelf life of the ingredients can be calculated through one or more shelf life influencing factors and the influence weights corresponding to each influencing factor. This method can comprehensively consider the impact of various factors in the refrigerator on the shelf life, so that the shelf life of the ingredients can be accurately estimated.

In some embodiments, the deviation value of the shelf life of the food material can also be determined according to the change of the environment in the storage room relative to the adaptive storage environment corresponding to the type of food material, that is, the deviation of the actual storage environment relative to the suitable storage environment. Specifically, adapting the food material to the storage environment can generally make the fresh-keeping period of the food material the longest. On the one hand, it is easy to obtain the expected storage shelf life of the ingredients when they are stored in an adapted storage environment. On the other hand, according to the deviation of the actual storage environment relative to the adapted storage environment, the shelf life of the ingredients is shortened accordingly, which is convenient for calculation and has high accuracy. In some embodiments, adapting to the storage environment includes at least an appropriate storage temperature, therefore, the temperature in the storage room needs to be monitored.

Further, in another embodiment, when the difference between the monitored temperature in the storage room and the suitable storage temperature of the ingredients is greater than the preset deviation value, a storage risk reminder can also be issued, so that the user can be promptly reminded to take corresponding operations that facilitate the storage of the ingredients to extend the shelf life of the ingredients.

In some embodiments, the environmental information of the storage room environment includes one or more of temperature information, humidity information, microbial content information, and oxygen content information. Specifically, different environmental information has different influences on different types of ingredients. Generally speaking, temperature information, humidity information, microbial content information, and oxygen content information have a higher impact on shelf life. Corresponding hardware can be set in the refrigerator to obtain the above environmental information, and the shelf life can be estimated based on the acquired environmental information, which can improve the accuracy of the estimated shelf life.

In some embodiments, after the shelf life of the food is calculated according to the estimated storage shelf life and the shelf life deviation value, the method for determining the shelf life of the food in the refrigerator further includes the following steps:

Establish a shelf life database of the ingredients stored in the storage room, and the shelf life database has the corresponding relationship between the ingredients and the shelf life of the ingredients;

According to the shelf life database, a reminder of the expiry of the shelf life of the ingredients that are about to expire is issued.

Specifically, a storage unit may be provided in the controller of the refrigerator or in the electronic equipment connected to the refrigerator to store the shelf life database of the ingredients in the storage room, and the shelf life database is used to store the correspondence between the ingredients and their shelf life. According to the shelf life database, a reminder can be set for ingredients whose shelf life is about to expire, for example, a reminder is given 2 days in advance, so that users can be informed, so as to make overall arrangements.

Since the expected storage shelf life of some ingredients is relatively short, even only one or two days, in some embodiments, after establishing the shelf life database of the ingredients stored in the storage room, the method for determining the shelf life of the ingredients in the refrigerator further includes the following steps: updating the shelf life database every preset time interval, wherein the preset time interval is less than 24 hours. In this way, at least one shelf life reminder can be issued every day, in case some ingredients are spoiled without being reminded.

In one embodiment, further, the time interval for issuing the shelf life can be determined according to the expected storage shelf life of the food. For example, if the food with a long shelf life is less likely to deteriorate in a short period of time, the reminder time interval can be increased to achieve energy saving. Further, in some embodiments, after the shelf life database is updated, the ingredients and the shelf life corresponding to the ingredients are sent to a predetermined electronic device, such as a mobile phone, so that users can check it. In another embodiment, the monitored changes in the environmental information of the refrigerator can also be sent to the predetermined electronic device, so that the user can have a more comprehensive understanding of the operation of the refrigerator.

Fig. 4 is a structural diagram of a device 400 for determining the shelf life of ingredients in a refrigerator according to an embodiment of the present application. As shown in Figure 4, the equipment includes at least:

The first determination unit 410 is configured to determine the estimated shelf life of the food in the storage room according to the type of food stored in the storage room of the refrigerator.

The second determining unit 420 is configured to determine the deviation value of the shelf life of the food material according to the change of the environment in the storage room during the storage period of the food material.

The calculation unit 430 is configured to calculate the shelf life of the ingredients according to the expected storage shelf life and the shelf life deviation value.

In another exemplary embodiment, the present application also provides a computer-readable storage medium, on which a computer program is stored. The computer program is carried on the computer-readable storage medium, and includes the computer program for executing the method shown in the flowchart. Further, the readable storage medium may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function, etc.; the data storage area may store data created according to the use of blockchain nodes, etc. When the computer program is executed by the processor, the aforementioned method for determining the shelf life of ingredients in the refrigerator is realized.

The inventive concepts of the above devices and computer-readable storage medium are consistent with the method for determining the shelf life of the ingredients in the refrigerator, and will not be repeated here.

While the present application has been described with reference to several exemplary embodiments, it is understood that the terms which have been used are words of description and illustration, rather than limitation. Since the present application can be embodied in various forms without departing from the spirit or essence of the invention, it should be understood that the above-mentioned embodiments are not limited to any aforementioned details, but should be widely interpreted within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims (9)

1. A method for determining the shelf life of ingredients in a refrigerator, comprising: According to the types of ingredients stored in the storage room of the refrigerator, determine the expected shelf life of the ingredients in the storage room; During the storage period of the food, according to the change of the environment in the storage room, determine the deviation value of the shelf life of the food; Wherein, the method of determining the deviation value of the shelf life of the food material according to the change of the environment in the storage room includes the following steps: According to the type of the food material, a plurality of factors affecting the shelf life of the food material of the type in the storage room are acquired; Obtaining the changes corresponding to the plurality of factors affecting the shelf life; Determine the shelf life deviation value corresponding to the influencing factor according to the preset corresponding relationship between the change situation corresponding to the influencing factor and the shelf life deviation value; Obtain the impact weight of each of the influencing factors on the shelf life of the ingredients; Calculate the shelf life deviation value of the food material according to the shelf life deviation values corresponding to each of the plurality of influencing factors, and the influence weight corresponding to each of the influencing factors; The shelf life of the ingredients is calculated according to the estimated storage shelf life and the shelf life deviation value. 2. The method according to claim 1, wherein, according to the type of food stored in the storage room of the refrigerator, determining the expected shelf life of the food in the storage room includes: Obtaining the types of ingredients stored in the storage room of the refrigerator, and acquiring the environmental information of the storage room when the food materials are stored in the storage room; According to the type of the food material and the environmental information, the expected storage shelf life of the food material of the type is determined, and the environmental information includes at least temperature information. 3. The method according to claim 2, wherein the determining the expected shelf life of the type of food according to the type of the food and the environmental information includes: The expected storage shelf life of the type of food material in the environment corresponding to the environmental information is acquired from a database, and the database has a correspondence relationship between the combination of the type of food material and the environmental information and the expected storage shelf life. 4. The method according to claim 1, wherein the determination of the deviation value of the shelf life of the food material according to the change of the environment in the storage room includes: According to the types of ingredients stored in the storage room of the refrigerator, determine the suitable storage environment for the types of ingredients; During the storage period of the type of food, the change of the environment in the storage room relative to the storage environment corresponding to the type of food is obtained, and the deviation value of the shelf life of the food is determined. 5. method according to claim 4, is characterized in that, described adaptation storage environment comprises suitable storage temperature, and described method also comprises: monitoring the temperature within the storage chamber; When the difference between the temperature in the storage chamber and the suitable storage temperature of the food material is greater than a preset deviation value, a storage risk warning is issued. 6 . The method according to claim 1 , wherein the environment information of the storage room environment includes a plurality of temperature information, humidity information, microbial content information and oxygen content information. 7. The method according to claim 1, characterized in that, after calculating the shelf life of the ingredients according to the estimated storage shelf life and the shelf life deviation value, the method further comprises: Establish a shelf life database of the ingredients stored in the storage room, the shelf life database has a corresponding relationship between the ingredients and the shelf life of the ingredients; According to the shelf life database, a shelf life expiration reminder of the food material that is about to expire is issued. 8. The method according to claim 7, further comprising: The shelf life database is updated every preset time interval, and the preset time interval is less than 24 hours. 9. The method of claim 8, further comprising: After the shelf life database is updated, the food and the shelf life corresponding to the food are sent to a predetermined electronic device.