Method, device and storage box for freshness monitoring

Abstract

The application relates to the food preservation technology field and discloses a method for preservation monitoring, which is applied to a storage box body, the storage box body is provided with a nitric oxide generating device, and the method comprises the following steps: obtaining the concentration of the nitric oxide in the storage box body; determining a target operation mode of the storage box body according to the concentration of the nitric oxide; and controlling the storage box body to operate in the target operation mode. In this way, the concentration of the nitric oxide can be monitored in real time, the target operation mode corresponding to the actual concentration of the nitric oxide is determined, the storage box body can be safely operated, the risk of using the nitric oxide to preserve fruits and vegetables is reduced, and the physical safety of users is ensured. The application further discloses a device for preservation monitoring and a storage box body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food preservation, for example to a method, device and storage box for preservation monitoring. BACKGROUND

[0002] With the continuous improvement of social material level, more and more people pay attention to the preservation method of food. At present, people usually choose the modified atmosphere preservation method to prolong the preservation period of food, that is, in a certain closed system, a regulated atmosphere different from the normal atmospheric composition is obtained through various regulation methods to inhibit the physiological and biochemical processes and microbial activities that cause food spoilage.

[0003] In the existing fruit and vegetable preservation method, a nitric oxide generating device can be used to release nitric oxide into the storage space of the fruit and vegetable, which can inhibit the activity of various enzymes in the fruit and vegetable to a certain extent, thereby delaying the ripening and aging of the fruit and vegetable and prolonging the shelf life of the fruit and vegetable. However, nitric oxide is a colorless and odorless toxic gas, and it can easily be converted into nitrogen dioxide in the air. Therefore, it is dangerous to use it.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] The existing fruit and vegetable preservation method using nitric oxide has a risk of use and can easily cause harm to the human body. SUMMARY

[0006] The following presents a simplified summary of some aspects of the disclosed embodiments in order to provide a basic understanding of such embodiments. This summary is not an extensive overview of the embodiments described in detail in the following detailed description, nor is it intended to identify key / critical elements of the embodiments or to delineate the scope of the embodiments. Its sole purpose is to present some aspects of the disclosed embodiments in a simplified form as a prelude to the more detailed description that is presented later.

[0007] The embodiments of the present disclosure provide a method, device and storage box for preservation monitoring to reduce the risk of using nitric oxide for fruit and vegetable preservation and solve the technical problem of easy harm to the human body.

[0008] In some embodiments, the method for preservation monitoring is applied to a storage box, and the storage box has a nitric oxide generating device. The method comprises: obtaining the concentration of nitric oxide in the storage box; determining a target operation mode of the storage box according to the concentration of nitric oxide; and controlling the storage box to operate in the target operation mode.

[0009] In some embodiments, the storage box comprises an exhaust air duct. According to the concentration of nitric oxide, the target operation mode of the storage box is determined, which comprises: in the case that the concentration of nitric oxide in the storage box exceeds a first preset concentration, controlling the nitric oxide generating device to stop working and controlling the exhaust air duct to open.

[0010] In some embodiments, the target operation mode of the storage cabinet is determined according to the concentration of the nitric oxide, including: obtaining type information of a target user when the target user exists in a region associated with the storage cabinet; determining target contactable concentration information associated with the target user according to an association between the user type and the contactable concentration; and determining the target operation mode of the storage cabinet according to the concentration of the nitric oxide in the storage cabinet and the target contactable concentration information.

[0011] In some embodiments, the storage cabinet includes an exhaust air duct. The target operation mode of the storage cabinet is determined according to the concentration of the nitric oxide in the storage cabinet and the target contactable concentration information, including: in the case that the concentration of the nitric oxide in the storage cabinet is higher than the target contactable concentration information, controlling the exhaust air duct to be opened and controlling the storage cabinet to be in a locked state; and in the case that the concentration of the nitric oxide in the storage cabinet is lower than or equal to the target contactable concentration information, controlling the storage cabinet to be in an unlocked state.

[0012] In some embodiments, the target user is determined by: in the case that at least one user is in a coverage range of a region associated with the storage cabinet, determining the at least one user as the target user.

[0013] In some embodiments, the storage cabinet includes an exhaust air duct. The method for preservation monitoring further includes: in the case that a preset processing time length of preservation processing of food in the storage cabinet by the nitric oxide is reached, controlling the nitric oxide generating device to stop working and controlling the exhaust air duct to be opened.

[0014] In some embodiments, the method for preservation monitoring further includes: in the case that excess nitric oxide generated by the operation of the nitric oxide generating device is greater than a second preset concentration, controlling the storage cabinet to be in a locked state.

[0015] In some embodiments, the storage cabinet includes a cabinet body, a sealed storage space, a gas sensor, and a processor assembly. The sealed storage space is arranged inside the cabinet body, and the sealed storage space is configured with a nitric oxide generating device; the gas sensor is arranged inside the cabinet body and is used to obtain the concentration of the nitric oxide in the storage cabinet; and the processor assembly is arranged inside the cabinet body and is electrically connected with the gas sensor, and is used to determine the target operation mode of the storage cabinet according to the concentration of the nitric oxide, and control the storage cabinet to operate in the target operation mode.

[0016] In some embodiments, an exhaust air duct is enclosed between the cabinet body and the sealed storage space. The storage cabinet further includes a fan; the fan is arranged in the exhaust air duct; and an exhaust port is formed in the cabinet body and is in communication with the exhaust air duct, and the fan drives the nitric oxide to be exhausted from the exhaust port when the fan operates.

[0017] In some embodiments, the device for preservation monitoring comprises a processor and a memory storing program instructions. The processor is configured to execute the method for preservation monitoring described above when executing the program instructions.

[0018] The method, device and storage box provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] After obtaining the concentration of nitric oxide in the storage box, the target operation mode of the storage box is determined according to the concentration of nitric oxide, so that the concentration of nitric oxide can be monitored in real time and the target operation mode corresponding to the actual concentration of nitric oxide can be determined. By controlling the storage box to operate in the target operation mode, the storage box can be safely operated, the risk of using nitric oxide to preserve fruits and vegetables is reduced, and the safety of users is ensured.

[0020] The foregoing general description and the following description are only exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0022] Figure 1 is a schematic diagram of a method for preservation monitoring provided by an embodiment of the present disclosure;

[0023] Figure 2 is a schematic diagram of a storage box provided by an embodiment of the present disclosure;

[0024] Figure 3 is a schematic diagram of a device for preservation monitoring provided by an embodiment of the present disclosure.

[0025] REFERENCE NUMERALS

[0026] 21: box body; 22: closed storage space; 23: gas sensor; 24: processor assembly; 25: nitric oxide generating device; 26: exhaust air duct; 27: fan; 28: exhaust port;

[0027] 100: processor; 101: memory; 102: communication interface; 103: bus DETAILED DESCRIPTION

[0028] In order to enable more detailed understanding of the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below, and the accompanying drawings are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0029] The terms "first", "second", and the like in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0030] Unless otherwise specified, the term "a plurality of" means two or more.

[0031] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B represents: A or B.

[0032] The term "and / or" is a description of the relationship between the objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0033] The method for preservation monitoring provided by the embodiments of the present disclosure is applied to a storage box body, and the storage box body has a nitric oxide generating device. The nitric oxide generating device is used to generate nitric oxide gas and release the nitric oxide gas into the storage box body, so as to increase the concentration of the nitric oxide gas in the storage box body. Taking the storage of fruits and vegetables in the storage box body as an example, such a scheme can not only reduce the respiration rate of the fruits and vegetables in the storage box body, but also inhibit the release of ethylene by the fruits and vegetables, so as to slow down the decay rate of the fruits and vegetables, thereby achieving the effect of prolonging the preservation period of the fruits and vegetables.

[0034] Figure 1 is a schematic diagram of a method for preservation monitoring provided by the embodiments of the present disclosure. In combination with Figure 1 The embodiments of the present disclosure provide a method for preservation monitoring to achieve the control of the above-mentioned storage box body, which can include:

[0035] S11, obtaining the concentration of nitric oxide in the storage box body.

[0036] In the embodiments of the present disclosure, the concentration of nitric oxide in the storage box body can be obtained by a gas sensor. In this way, the concentration change of nitric oxide in the storage box body can be monitored in real time.

[0037] S12, determining a target operation mode of the storage cabinet according to the concentration of the nitric oxide.

[0038] Compared with the scheme of fixedly setting the operation mode of the storage cabinet, the embodiment dynamically adjusts the operation mode of the storage cabinet according to the concentration of the nitric oxide, realizes the regulation and control of the operation program of the storage cabinet, ensures that the storage cabinet can be safely operated, reduces the risk of using the nitric oxide to preserve fruits and vegetables, and ensures the use safety of the user.

[0039] Optionally, the target operation mode of the storage cabinet according to the concentration of the nitric oxide can be embodied as: when the concentration of the nitric oxide exceeds a preset value, the nitric oxide generating device is controlled to stop working, so as to avoid the concentration in the cabinet from continuing to increase and affecting the use safety of the user.

[0040] Optionally, if the storage cabinet is provided with an exhaust air duct, the target operation mode of the storage cabinet according to the concentration of the nitric oxide comprises: when the concentration of the nitric oxide in the storage cabinet exceeds a first preset concentration, the nitric oxide generating device is controlled to stop working, and the exhaust air duct is controlled to be opened.

[0041] Here, the preset value can be the first preset concentration, which can be the maximum allowable concentration of the nitric oxide in the air, for example, 5 mg / m3; or can be a personalized concentration set by the user according to the use demand and the maximum allowable concentration. Generally, the personalized concentration is lower than the maximum allowable concentration. When the concentration of the nitric oxide in the storage cabinet exceeds the first preset concentration, it indicates that there is a risk of exceeding the standard of the nitric oxide in the storage cabinet. Therefore, according to the size relationship between the concentration of the nitric oxide in the storage cabinet and the first preset concentration, the operation mode of the storage cabinet is adjusted, so as to reduce the use risk of the nitric oxide and ensure the use safety of the user.

[0042] Optionally, the above first preset concentration can be uniformly set for all users. When the concentration of the nitric oxide in the storage cabinet exceeds the first preset concentration, the nitric oxide generating device can be controlled to stop working; and when the concentration of the nitric oxide in the storage cabinet does not exceed the first preset concentration, the nitric oxide generating device can be controlled to work normally.

[0043] Optionally, the contactable concentration corresponding to different types of users can be set, and the different types of users can be controlled differently. That is, according to the concentration of nitric oxide, the target operation mode of the storage box is determined, including: when it is determined that the target user exists in the area associated with the storage box, obtaining the type information of the target user; according to the association between the user type and the contactable concentration, the target contactable concentration information associated with the target user is determined; according to the concentration of nitric oxide in the storage box and the target contactable concentration information, the target operation mode of the storage box is determined.

[0044] The type information of the target user can be divided into young adults aged 20-50 and teenagers or elderly people over 50 according to the age information of the user. Generally, the contactable concentration of young adults can be higher than that of teenagers or elderly people. For example, when the user is a young adult, the contactable concentration is 5 mg / m3; when the user is a teenager or an elderly person, the contactable concentration is 4.5 mg / m3.

[0045] Alternatively, the type information of the target user can be divided into healthy users, sub-healthy users or women in the gestation or lactation period according to the physical fitness information of the user. Generally, the contactable concentration of healthy users can be higher than that of sub-healthy users or women in the gestation or lactation period. For example, when the user is a healthy user, the contactable concentration is 5 mg / m3; when the user is a sub-healthy user or a woman in the gestation or lactation period, the contactable concentration is 3 mg / m3.

[0046] Optionally, according to the concentration of nitric oxide in the storage box and the target contactable concentration information associated with the target user, the target operation mode of the storage box can be determined, which can be embodied as controlling the nitric oxide generating device to stop working and controlling the exhaust air duct to open when needed.

[0047] In this way, the accuracy of the target contactable concentration information of the target user can be ensured, so as to ensure the safety of the target user when the storage box is running.

[0048] In addition, when it is detected that the target user exists in the area associated with the storage box, the target user may have the intention to open the box. In order to further ensure the safety of the user, adjusting the target operation mode of the storage box can also be embodied as adjusting the locking state of the storage box.

[0049] For example, the storage box body comprises an exhaust air duct, and the target operation mode of the storage box body is determined according to the concentration of nitric oxide in the storage box body and the target accessible concentration information, comprising: in the case that the concentration of nitric oxide in the storage box body is higher than the target accessible concentration information, controlling the exhaust air duct to be opened and controlling the storage box body to be in a locked state; in the case that the concentration of nitric oxide in the storage box body is lower than or equal to the target accessible concentration information, controlling the storage box body to be in an unlocked state.

[0050] In the case that the concentration of nitric oxide in the storage box body exceeds the target accessible concentration information, it indicates that there may be a risk of harming the health of the target user in the storage box body, therefore, according to the size relationship between the concentration of nitric oxide in the storage box body and the target accessible concentration information, the locked state of the storage box body is adjusted, which can reduce the risk of using nitric oxide and ensure the safety of the target user.

[0051] Optionally, the embodiment of the present disclosure provides a method for determining a target user, which can comprise: in the case that at least one user is in the coverage range of the area associated with the storage box body, determining the at least one user as the target user.

[0052] Optionally, the embodiment of the present disclosure can determine the location of the user through various implementation manners. The following is an example.

[0053] In one way, if the storage box body is configured with a human body sensing module, it can automatically identify whether the user is in the coverage range of the area associated with the storage box body. For example, the human body sensing module can be an infrared sensing module; or a radar module. In another way, the storage box body can also be configured with an image acquisition module, and the location of the user is obtained through image processing technology, and whether the user is located in the area associated with the storage box body is determined accordingly. For example, the image acquisition module can be embodied as a camera, and the user can acquire the image of the user through the camera to determine the location of the user. The above manners can quickly and conveniently obtain the location of the user, thereby facilitating the determination of the target user.

[0054] S13, controlling the storage box body to operate in the target operation mode.

[0055] In summary, by using the method for preservation monitoring provided by the embodiment of the present disclosure, the concentration of nitric oxide can be monitored in real time, and the target operation mode corresponding to the actual concentration of nitric oxide is determined. By controlling the storage box body to operate in the target operation mode, the storage box body can be safely operated, the risk of using nitric oxide to preserve fruits and vegetables is reduced, and the safety of the user is ensured.

[0056] Optionally, the method for preservation monitoring can further include: in the case that the preset processing time length of preservation treatment of the food in the storage box by the nitric oxide is reached, controlling the nitric oxide generating device to stop working and controlling the exhaust air duct to open.

[0057] The preset processing time length of preservation treatment of the food in the storage box by the nitric oxide can be 25 to 35 minutes, for example, preferably 30 minutes. In this way, in the appropriate processing time length, the effect of preservation treatment of the food by the nitric oxide can be ensured.

[0058] Optionally, the method for preservation monitoring can further include: in the case that the excess nitric oxide generated by the nitric oxide generating device is greater than the second preset concentration, controlling the storage box to be in a locked state.

[0059] Here, the excess nitric oxide refers to the difference ΔC between the total concentration value of the nitric oxide generated by the nitric oxide generating device and the concentration consumption value of the nitric oxide used for preservation of the food in the case that the preset processing time length of preservation treatment of the food in the storage box by the nitric oxide is reached.

[0060] Correspondingly, the second preset concentration refers to the highest allowable concentration of the nitric oxide in the storage box in the case that the preset processing time length of preservation treatment of the food in the storage box by the nitric oxide is reached, for example, 0.15 mg / m3. In the case that the difference ΔC is greater than the second preset concentration, it indicates that there is a risk of excessive nitric oxide in the storage box. Therefore, according to the size relationship between the difference ΔC and the second preset concentration, the operation mode of the storage box is adjusted, which can reduce the risk of use of the nitric oxide and ensure the safety of use of the user.

[0061] In actual application, first, the concentration of nitric oxide in the storage box is obtained. If the concentration of nitric oxide in the storage box exceeds 5 mg / m3, the nitric oxide generating device is controlled to stop working, and the exhaust air duct is controlled to open, so that the excessive nitric oxide in the storage box is discharged. When the concentration of nitric oxide in the storage box is less than 5 mg / m3, the exhaust air duct is controlled to close. In this process, the user information can be collected by the camera to determine the target user in the coverage range of the area associated with the storage box. If the target user is an old person, when the concentration of nitric oxide in the storage box is higher than 4.5 mg / m3, the storage box is controlled to be in a locked state, and the exhaust air duct is controlled to open again; when the concentration of nitric oxide in the storage box is less than 4.5 mg / m3, the storage box is controlled to be in an unlocked state, and the exhaust air duct is controlled to close. After the nitric oxide is introduced into the storage box for 30 minutes, the nitric oxide generating device is controlled to stop working, and the exhaust air duct is controlled to open, so that the excessive nitric oxide is discharged. When the excessive nitric oxide is greater than 0.15 mg / m3, the storage box is controlled to be in a locked state. In this way, the concentration of nitric oxide can be monitored in real time, and the target operating mode corresponding to the actual concentration of nitric oxide is determined. By controlling the storage box to operate in the target operating mode, the storage box can operate safely, the risk of using nitric oxide to preserve fruits and vegetables is reduced, and the use safety of the user is ensured.

[0062] Figure 2 is a schematic view of a storage box provided by an embodiment of the present disclosure. As shown in Figure 2 The present disclosure provides a storage box, which comprises a box body 21, a sealed storage space 22, a gas sensor 23, and a processor assembly 24. The sealed storage space 22 is arranged inside the box body 21, and a nitric oxide generating device 25 is arranged in the sealed storage space 22; the gas sensor 23 is arranged inside the box body 21, and is used to obtain the concentration of nitric oxide in the storage box; and the processor assembly 24 is arranged inside the box body 21, and is electrically connected with the gas sensor 23, and is used to determine the target operating mode of the storage box according to the concentration of nitric oxide, and control the storage box to operate in the target operating mode.

[0063] The storage box provided by the present disclosure can monitor the concentration of nitric oxide in the storage box in real time through the gas sensor, and determine the corresponding target operating mode through the processor assembly electrically connected with the gas sensor. By controlling the storage box to operate in the target operating mode, the storage box can operate safely, the risk of using nitric oxide to preserve fruits and vegetables is reduced, and the use safety of the user is ensured.

[0064] Optionally, the processor component 24 is also electrically connected with a nitric oxide generating device 25. In this way, the operation mode of the nitric oxide generating device can be controlled to realize the operation of the storage box in the target operation mode.

[0065] Optionally, the gas sensor 23 can be arranged at the lower part of the space in the sealed storage space. Since the relative molecular mass of nitric oxide gas is slightly smaller than the average relative molecular mass of air, the gas sensor 23 arranged at the lower part of the sealed storage space can more accurately detect the concentration of nitric oxide gas in the sealed storage space.

[0066] Optionally, an exhaust air duct 26 is enclosed between the box body 21 and the sealed storage space 22. The storage box further comprises a fan 27. The fan 27 is arranged in the exhaust air duct 26. An exhaust port 28 is formed in the box body 21 and communicates with the exhaust air duct 26. The fan 27 drives the nitric oxide to be discharged from the exhaust port 28 when the fan 27 is operated. In this way, the air circulation speed in the exhaust air duct can be improved.

[0067] Optionally, the gas sensor 23 can also be arranged at the lower part of the space in the exhaust air duct 26. In this way, the concentration of nitric oxide in the exhaust air duct 26 can be detected.

[0068] Optionally, the fan 27 is arranged at the top of the space in the exhaust air duct 26 to accelerate the ventilation flow in the exhaust air duct 26 and improve the discharge rate of nitric oxide.

[0069] Figure 3 is a schematic diagram of a device for preservation monitoring provided by an embodiment of the present disclosure. In combination with Figure 3 As shown in the figure, the device for preservation monitoring provided by an embodiment of the present disclosure comprises a processor 100 and a memory 101. Optionally, the device can further comprise a communication interface 102 and a bus 103. The processor 100, the communication interface 102 and the memory 101 can complete mutual communication through the bus 103. The communication interface 102 can be used for information transmission. The processor 100 calls the logical instructions in the memory 101 to execute the method for preservation monitoring of the above-mentioned embodiments.

[0070] In addition, the logical instructions in the memory 101 mentioned above can be realized in the form of a software functional unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0071] The memory 101 can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments of the present disclosure. The processor 100 executes the function application and data processing by running the program instructions / modules stored in the memory 101, that is, implements the method for preservation monitoring in the above embodiments.

[0072] The memory 101 can include a program storage area and a data storage area. The program storage area can store an operating system and at least one application required by a function. The data storage area can store data created according to the use of the terminal device. In addition, the memory 101 can include a high-speed random access memory, and can also include a non-volatile memory.

[0073] The embodiments of the present disclosure provide a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to execute the method for preservation monitoring.

[0074] The embodiments of the present disclosure provide a computer program product, which includes a computer program stored on a computer readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the method for preservation monitoring.

[0075] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0076] The technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes, or can be a transitory storage medium.

[0077] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0078] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0079] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.) can be implemented in other manners. For example, the described apparatus embodiments are merely schematic. For example, the division of the units is merely a logical function division. There can be another division manner for the actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, or among them, can be indirect couplings or communication connections through some interfaces, devices, or units, and can be in electric, mechanical, or other forms.

[0080] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions, and operations of the system, method, and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment, or a part of code, which contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for freshness monitoring, characterized by, The method is applied to a storage box body having a nitric oxide generating device and an exhaust air duct, and comprises: acquiring the concentration of nitric oxide in the storage box body; determining a target operation mode of the storage box body according to the concentration of nitric oxide; wherein, when it is determined that a target user exists in a region associated with the storage box body, type information of the target user is obtained; according to an association relationship between user types and touchable concentrations, target touchable concentration information associated with the target user is determined; when the concentration of nitric oxide in the storage box body is higher than the target touchable concentration information, the exhaust air duct is controlled to be opened, and the storage box body is controlled to be in a locked state; when the concentration of nitric oxide in the storage box body is lower than or equal to the target touchable concentration information, the storage box body is controlled to be in an unlocked state; controlling the storage box body to operate in the target operation mode.

2. The method of claim 1, wherein, The method further comprises: when the concentration of nitric oxide in the storage box body exceeds a first preset concentration, controlling the nitric oxide generating device to stop working and controlling the exhaust air duct to be opened.

3. The method of claim 1, wherein, The target user is determined by: when at least one user is in a coverage range of a region associated with the storage box body, the at least one user is determined to be the target user.

4. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: when a preset processing time length for fresh-keeping processing of food in the storage box body by nitric oxide is reached, controlling the nitric oxide generating device to stop working and controlling the exhaust air duct to be opened.

5. The method of claim 4, wherein, The method further comprises: when excess nitric oxide generated by operation of the nitric oxide generating device is greater than a second preset concentration, controlling the storage box body to be in a locked state.

6. A storage bin characterized by, The method comprises: a box body, a sealed storage space, a gas sensor, and a processor assembly; the sealed storage space is arranged inside the box body, and a nitric oxide generating device is arranged in the sealed storage space; an exhaust air duct is formed between the box body and the sealed storage space; the gas sensor is arranged inside the box body and is used to acquire the concentration of nitric oxide in the storage box body; the processor assembly is arranged inside the box body and is electrically connected with the gas sensor, and is used to determine a target operation mode of the storage box body according to the concentration of nitric oxide, and control the storage box body to operate in the target operation mode; wherein, when it is determined that a target user exists in a region associated with the storage box body, type information of the target user is obtained; according to an association relationship between user types and touchable concentrations, target touchable concentration information associated with the target user is determined; when the concentration of nitric oxide in the storage box body is higher than the target touchable concentration information, the exhaust air duct is controlled to be opened, and the storage box body is controlled to be in a locked state; when the concentration of nitric oxide in the storage box body is lower than or equal to the target touchable concentration information, the storage box body is controlled to be in an unlocked state.

7. The storage bin of claim 6, wherein, The storage box further comprises: A fan is arranged in the exhaust air duct; An exhaust port is arranged on the box body and is in communication with the exhaust air duct, and the fan drives the nitrogen monoxide to be discharged from the exhaust port when the fan operates.

8. An apparatus for freshness monitoring comprising a processor and a memory having stored therein program instructions, the apparatus being characterized by: The processor is configured to execute the program instructions to perform the method for preservation monitoring according to any one of claims 1 to 5.

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