Fresh-keeping equipment, control method, device, equipment, medium and product

Abstract

The invention relates to the technical field of fresh-keeping equipment, in particular to fresh-keeping equipment, a control method, a device, equipment, a medium and a product, and the equipment comprises a fresh-keeping layer which comprises a food placing area and an ecological area adjacent to the food placing area; the food placing area comprises a plurality of moving platforms and is used for moving food to the ecological area; the ecological area is used for chopping the food moved to the ecological area and storing the chopped food into a storage box for ecological treatment; and ecological treatment can be carried out on food materials.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh-keeping equipment, and in particular to fresh-keeping equipment, a control method, a device, equipment, a medium and a product. Background Art

[0002] The competition focus in the refrigerator and other fresh-keeping equipment market is mainly on fresh-keeping technology. However, there are few products that pay attention to environmental protection and ecology. With the decline in air quality, the importance of ecological protection has become increasingly prominent, and its role in improving the quality of life has become increasingly significant. In view of this, this field is in urgent need of a refrigerator technology that can build an ecological chain to bring more positive changes to life and promote the sustainable development of the ecological environment. There are technical issues in this field on how to carry out ecological treatment of food. Summary of the invention

[0003] The present invention provides a fresh-keeping device, a control method, a device, equipment, a medium and a product, which solve the technical problem of how to perform ecological treatment on food.

[0004] In a first aspect, the present invention provides a fresh-keeping device, comprising: a fresh-keeping layer, including a food placement area and an ecological zone adjacent to the food placement area; the food placement area comprises a plurality of mobile platforms for moving food to the ecological zone; and the ecological zone is used to chop the food moved to the ecological zone and store it in a storage box for ecological treatment.

[0005] In some embodiments, the ecological zone includes a crushing device and a storage box. The crushing device is disposed above the storage box and is used to chop the food moved to the ecological zone and store it in the storage box for fermentation.

[0006] In a second aspect, the present invention provides a control method based on the above-mentioned fresh-keeping equipment, the method comprising: obtaining food information of food in the fresh-keeping layer; judging whether the food requires ecological treatment based on the food information; and moving the food to an ecological area for ecological treatment if the food information judges that the food requires ecological treatment.

[0007] In some embodiments, the step of obtaining food information of the food in the fresh-keeping layer includes: obtaining a picture and / or smell of the food in the fresh-keeping layer; the step of judging whether the food needs ecological treatment based on the food information includes: judging whether the food is spoiled based on the picture and / or smell of the food in the fresh-keeping layer.

[0008] In some embodiments, the step of obtaining food information of food in the fresh-keeping layer includes: obtaining the placement information of the food in the fresh-keeping layer, wherein the placement information includes the placement time of the food; the step of judging whether the food needs ecological treatment based on the food information includes: judging whether the food has exceeded the fresh-keeping time based on the placement time of the food in the fresh-keeping layer and the current time; if the food has exceeded the fresh-keeping time, judging that the food is spoiled.

[0009] In some embodiments, when the food information determines that the food needs ecological treatment, the step of moving the food to an ecological zone for ecological treatment includes: when the food information determines that the food needs ecological treatment, sending a prompt message to the user terminal; if feedback is received from the user confirming the treatment, moving the food to the ecological zone for ecological treatment; if feedback is received from the user reminding again, sending a prompt message to the user terminal after a preset time interval.

[0010] In a third aspect, the present invention provides a control device for fresh-keeping equipment, the device comprising: a collection module for acquiring food information of food in the fresh-keeping layer; a judgment module for judging whether the food requires ecological treatment based on the food information; and an execution module for moving the food to an ecological area for ecological treatment if the food information determines that the food requires ecological treatment.

[0011] In a fourth aspect, the present invention provides a computer device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the control method of the fresh-keeping device in any of the above aspects.

[0012] In a fifth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the control method of the fresh-keeping device of any of the above aspects.

[0013] In a sixth aspect, the present invention provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of the control method of the fresh-keeping device in any of the above aspects.

[0014] The present invention provides a fresh-keeping device, control method, apparatus, equipment, medium and product, wherein the equipment comprises: a fresh-keeping layer, including a food placement area and an ecological area adjacent to the food placement area; the food placement area comprises a plurality of mobile platforms for moving food to the ecological area; the ecological area is used to chop the food moved to the ecological area and store it in a storage box for ecological processing; and the food can be processed ecologically. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings:

[0016] Figure 1 A schematic diagram of the structure of a fresh-keeping device provided by an embodiment of the present invention;

[0017] Figure 2 A schematic top view of a fresh-keeping layer of a fresh-keeping device provided in an embodiment of the present invention;

[0018] Figure 3A schematic diagram of an ecological zone provided for an application example of the present invention;

[0019] Figure 4 A schematic flow chart of a control method for a fresh-keeping device provided by an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of the structure of a control device for a fresh-keeping device provided by an embodiment of the present invention;

[0021] Figure 6 A schematic diagram of a food processing process provided as an application example of the present invention;

[0022] Figure 7 A mobile phone terminal control schematic diagram provided for an application example of the present invention.

[0023] In the drawings, the same reference numerals are used for the same components, and the drawings are not drawn to scale. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the scheme of the present invention, and to fully understand and implement how the present invention applies technical means to solve technical problems and achieve the corresponding technical effects, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only an embodiment of a part of the present invention, not all of the embodiments. The embodiments of the present invention and the various features in the embodiments can be combined with each other without conflict, and the technical schemes formed are all within the scope of protection of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0027] The competition focus in the refrigerator and other fresh-keeping equipment market is mainly on fresh-keeping technology. However, there are few products that pay attention to environmental protection and ecology. With the decline in air quality, the importance of ecological protection has become increasingly prominent, and its role in improving the quality of life has become increasingly significant. In view of this, this field is in urgent need of a refrigerator technology that can build an ecological chain to bring more positive changes to life and promote the sustainable development of the ecological environment. There are technical issues in this field on how to carry out ecological treatment of food.

[0028] In order to solve the above-mentioned technical problem of how to perform ecological treatment on food materials, the present invention proposes fresh-keeping equipment, control methods, devices, equipment, media and products. The implementation details of the present invention are described in detail below. The following content is only the implementation details provided for the convenience of understanding and is not necessary for the implementation of this solution.

[0029] Embodiment 1

[0030] Figure 1 The invention provides a schematic diagram of the structure of a refrigerator according to an application example. Figure 2 It is a top view schematic diagram of a certain layer of a refrigerator provided by an application example of the present invention.

[0031] like Figure 1 and Figure 2 As shown, in the technical solution of this embodiment, a fresh-keeping device is provided, and the device includes: a fresh-keeping layer, including a food placement area 100 and a variation processing area / ecological area 200 adjacent to the food placement area; the food placement area 100 includes a plurality of mobile platforms for moving food to the variation processing area / ecological area 200; the ecological area 200 is used to chop the food moved to the ecological area 200 and store it in a storage box for ecological treatment.

[0032] Most of the current fresh-keeping equipment focuses on fresh-keeping technology, but lacks in ecological treatment of food. The art faces the dilemma of how to construct fresh-keeping equipment for ecological treatment of food. The art has the technical problem of lacking such comprehensive fresh-keeping equipment.

[0033] In the technical solution of this embodiment, the fresh-keeping device is provided with a fresh-keeping layer, which covers two important parts: the food placement area and the ecological zone adjacent to the food placement area. The food placement area includes multiple mobile platforms, which are square structures made of high-density polyethylene (HDPE) material. Each platform has four rollers, a gravity sensor, and a covering sensor. It can move left and right, front and back under the drive of a motor. Each layer also has a support to assist it in moving within a specified position. It senses the placement of food and its own state through rollers, gravity sensors, etc. When the food placed on it is judged to need ecological treatment, it can rely on these mobile platforms to move the food to the ecological zone. The ecological zone is responsible for the ecological processing of the moved food. It consists of a crushing device (such as a chopper) and a storage box. When the food arrives at the ecological zone, the crushing device (such as a chopper) will chop the food into pieces. The chopped food then enters a storage box with good sealing properties for ecological processing such as fermentation. The lid of the storage box is composed of a spring and a panel, which can be opened and closed automatically to facilitate the entry of food. 10 ml of fermentation agent can also be added to accelerate the fermentation speed. The current capacity can be checked from the outside of the box, allowing users to know when it needs to be cleaned.

[0034] The technical solution of this embodiment, through such a design, enables the fresh-keeping equipment to have a complete food ecological processing function. For example, when the user puts vegetables, fruits or meat and other foods into the food placement area of ​​the fresh-keeping layer, the various components of the food placement area work together to accurately record the relevant information of the food. Over time, if the food is close to or reaches a deteriorated state, the corresponding mobile platform will transport the food to the ecological zone according to the established procedures. In the ecological zone, different types of food can be properly handled. For example, vegetables are chopped and fermented in a storage box, and can be converted into fertilizer after a certain period of time. The same is true for meat. After processes such as crushing and fermentation, resources are reused, and spoiled food that might have been discarded is turned into treasure. At the same time, the entire process is under the orderly control of the equipment, which greatly enhances the role of fresh-keeping equipment in ecological and environmental protection, and also provides users with a more environmentally friendly and practical way to preserve and handle food, reducing the pressure on the environment caused by food waste.

[0035] Embodiment 2

[0036] Figure 3 This is a schematic diagram of an ecological zone provided by an application example of the present invention. Figure 3 As shown, the left side is a three-dimensional view of the ecological zone, and the right side is a side view showing the inlay method of the crushing device 201 and the storage box 202. On the basis of the above embodiment, the ecological zone includes a crushing device 201 and a storage box 202, and the crushing device 201 is arranged above the storage box 202, and is used to chop the food moved to the ecological zone and store it in the storage box 202 for fermentation.

[0037] When constructing preservation equipment for ecological processing of food ingredients, the rational construction of ecological zones is a key part. It is necessary to solve the technical problem of how to construct ecological zones for preservation equipment for ecological processing of food ingredients to ensure the effective implementation of the ecological processing link.

[0038] In the technical solution of this embodiment, in the ecological zone of the above-mentioned fresh-keeping equipment, two core components, a crushing device and a storage box, are included. The crushing device is arranged above the storage box. The crushing device is, for example, a shredder, which has the function of shredding the food moved to the ecological zone. For example, when the spoiled food is transported to the ecological zone by the mobile platform, the first thing it contacts is the crushing device. Relying on its own mechanical structure and power system, it can cut food of different shapes and textures, such as harder root vegetables or blocky meat, into suitable pieces. The storage box is a container for storing chopped food. It has good sealing, which can ensure that there will be no odor leakage during the ecological treatment process such as fermentation of food. Its lid uses the cooperation of springs and panels. When chopped food falls, the lid will be pressed down because it cannot bear the weight, and the food will enter the storage box smoothly. After that, the lid will rebound and close tightly without the weight pressure, and the current capacity can be checked from the outside, so that the storage situation can be known conveniently. At the same time, each preservation layer comes with a set of crushing devices and storage boxes, so that users can choose to separate meat, vegetables and fruits in different layers, and ferment different foods according to user preferences to obtain the required fertilizer.

[0039] The technical solution of this embodiment, through the construction method of this ecological zone, makes the fresh-keeping equipment more refined and efficient in ecological treatment. For example, the user places a batch of apples in the fresh-keeping layer. As time goes by, the apples deteriorate. Through the identification of the equipment and the transportation of the mobile platform, the apples arrive at the crushing device of the ecological zone. The crushing device cuts the apples into pieces of appropriate size and drops them into the storage box below. Then, an appropriate amount of fermentation agent can be put into it. The good sealing of the storage box creates a suitable environment for fermentation. After a period of fermentation, these apple residues can be converted into fertilizers that are beneficial to plant growth. Different types of food, such as vegetables, meat, etc., can also be processed according to the same process. Users can put different foods in different layers of ecological zones for fermentation according to their needs. This not only allows the spoiled food to be reasonably treated ecologically and realizes resource recycling, but also meets the diverse needs of users through layered processing, improves the practicality and adaptability of the entire fresh-keeping equipment in the field of ecological environmental protection, and further enhances the value of the equipment and its positive impact on the ecological environment.

[0040] Embodiment 3

[0041] Figure 4 : is a flow chart of a preservation method provided in an embodiment of the present application, such as Figure 4 As shown, in the technical solution of this embodiment, a control method based on the above-mentioned fresh-keeping equipment is provided, and the method includes: obtaining food information of food in the fresh-keeping layer; judging whether the food needs ecological treatment based on the food information; and moving the food to the ecological area for ecological treatment if the food information judges that the food needs ecological treatment.

[0042] On the basis that the fresh-keeping equipment has the corresponding structure for the ecological treatment of food, how to effectively control the fresh-keeping equipment to carry out ecological treatment of spoiled food is a technical problem that needs to be solved urgently.

[0043] In the technical solution of this embodiment, first, it is necessary to obtain food information of the food in the fresh-keeping layer. This process is achieved by relying on components such as cameras and odor sensors built into the refrigerator. The camera can collect picture information of food, such as judging whether the food shows signs of deterioration by photographing the color, shape and other characteristics of the food appearance. For example, if the surface of a tomato with bright color begins to become soft, rotten, or has black spots, it can be observed in the picture; the odor sensor collects the odor emitted by the food. Some foods will produce special odors after deterioration, and the odor sensor can keenly perceive this change. Then, based on the collected food information, it is judged whether the food needs ecological treatment. When it is found that the picture of the food shows deterioration characteristics or the odor changes abnormally, it is determined that the food needs ecological treatment. When it is determined that the food needs ecological treatment, the mobile platform and other structures are used to move the food to the ecological area for subsequent ecological treatment processes such as chopping and fermentation. The whole process relies on the motor to drive the mobile platform, according to the established path planning, the branch and bound method is adopted, and the optimal path is explored through the depth-first search algorithm to ensure that the food can be quickly and accurately transported to the ecological area.

[0044] The technical solution of this embodiment, through such a control method, allows the fresh-keeping equipment to respond intelligently when faced with spoiled food. For example, when the user puts a handful of green vegetables in the fresh-keeping layer, as the storage time increases, the camera captures that the leaves of the green vegetables begin to turn yellow and wilt, and the odor sensor also detects that the smell emitted by the green vegetables is no longer fresh. Combining this information, it is judged that the green vegetables have deteriorated. At this time, the device will start the process of moving the green vegetables to the ecological zone. Driven by the motor, the mobile platform will send the green vegetables to the crushing device in the ecological zone along the planned optimal path. The crushing device will chop the green vegetables and put them into the storage box for fermentation. Similarly, for other types of food such as meat and fruit, as long as there is deterioration, the equipment can accurately identify and orderly carry out ecological treatment, avoiding the waste of resources and environmental pressure caused by the arbitrary discarding of spoiled food, and the entire control process does not require too much manual intervention from the user, which greatly facilitates user use, and also improves the automation level and processing efficiency of the equipment in terms of ecological environmental protection.

[0045] Embodiment 4

[0046] Based on the above embodiment, the step of obtaining food information of the food in the fresh-keeping layer includes: obtaining a picture and / or smell of the food in the fresh-keeping layer; the step of judging whether the food needs ecological treatment based on the food information includes: judging whether the food is spoiled based on the picture and / or smell of the food in the fresh-keeping layer.

[0047] When controlling the preservation equipment to perform ecological processing on food, how to accurately determine whether the food needs ecological processing based on image sensors or odor sensors is the key. There are technical problems in this field that rely on these sensors to accurately determine the state of food in order to carry out ecological processing.

[0048] In the technical solution of this embodiment, in the step of obtaining food information of the fresh-keeping layer food, the image sensor, that is, the camera and the odor sensor are mainly used. The camera will obtain the picture information of the fresh-keeping layer food. It is installed at the top of each fresh-keeping layer in the refrigerator, and can clearly capture the overall appearance and detailed features of the food, such as whether there are mold spots, depressions, etc. on the surface of the apple. Through continuous image acquisition and comparison, the changes in the appearance of the food over time are analyzed. The odor sensor is responsible for collecting the odor emitted by the food. Different foods have obvious differences in odor when they are fresh and spoiled. For example, fresh milk has a light milky fragrance, while it will have a pungent odor such as sour odor after spoilage. The odor sensor can accurately perceive this odor change and feedback the data. Based on these pictures and / or odor information obtained from the fresh-keeping layer food, it is further judged whether the food needs ecological treatment. When the picture shows that the shape, color, etc. of the food have changes that meet the spoilage characteristics, or the odor sensor detects an abnormal odor, it is determined that the food has spoiled and needs ecological treatment, and then the corresponding movement and ecological treatment process is started.

[0049] The technical solution of this embodiment, by using the collaborative work of the image sensor and the odor sensor, the fresh-keeping equipment can make the judgment on whether the food needs ecological treatment more accurate and reliable. For example, when the user places a box of strawberries in the fresh-keeping layer, the camera will regularly take pictures of the strawberries. At first, the strawberries are bright and full in color. As time goes by, if the surface of the strawberries begins to become soft and rotten, grow hair, etc., they are captured in the picture, and the odor sensor also smells the odor of the strawberries that is no longer fresh but somewhat rotten. The device can accurately judge that the strawberries have deteriorated based on this, and then use the mobile platform to transport the strawberries to the ecological area for treatment. The same is true for various other foods. Whether it is vegetables, meat or other perishable foods, this method can timely detect the deterioration of food, avoid the problem of excessive waste of food or miss the best time for ecological treatment due to inability to accurately judge, improve the timeliness and effectiveness of the ecological treatment process of the entire fresh-keeping equipment, allow the equipment to play a better role in the construction of the ecological chain, and reduce the adverse effects of food deterioration on the environment.

[0050] Embodiment 5

[0051] On the basis of the above-mentioned embodiment, the step of obtaining food information of the food in the fresh-keeping layer includes: obtaining the placement information of the food in the fresh-keeping layer, wherein the placement information includes the placement time of the food; the step of judging whether the food needs ecological treatment based on the food information includes: judging whether the food has exceeded the fresh-keeping time based on the placement time of the food in the fresh-keeping layer and the current time; if the food has exceeded the fresh-keeping time, judging that the food is spoiled.

[0052] In the control link of ecological processing of food by fresh-keeping equipment, how to accurately judge whether food needs ecological processing based on the time when the ingredients are put in is a technical problem that needs to be solved.

[0053] In the technical scheme of this embodiment, in the step of obtaining food information of the fresh-keeping layer food, the placement information of the fresh-keeping layer food will be focused on, and the placement time is particularly critical. When the user puts the food into the fresh-keeping layer of the refrigerator, the fresh-keeping device will accurately record the time when the food is put in through the recording system, such as marked as "Carrot 202409201432" (indicating that carrots were put in at 14:32 on September 20, 2024), and at the same time, combined with the known shelf life of different foods, the system operation is used to determine whether the food has exceeded the fresh-keeping time. For example, for common green leafy vegetables, the fresh-keeping time may be about 3 to 5 days. If the recorded placement time plus the corresponding fresh-keeping time has reached or exceeded the current time, then it is preliminarily judged that the green leafy vegetables may have deteriorated. On this basis, the other appearance, smell and other characteristics of the food are further combined for secondary confirmation. If it does meet the relevant performance of deterioration, it is determined that the food needs ecological treatment, and then the food is moved to the ecological area through components such as mobile platforms for subsequent ecological treatment processes.

[0054] The technical solution of this embodiment makes the ecological treatment process of the fresh-keeping equipment more planned and reasonable by judging whether the food needs ecological treatment based on the time the food is put in. For example, the user puts a handful of beans in the fresh-keeping layer, and the equipment records the time of its placement as 10:00 on October 10, 2024. It is known that the fresh-keeping time of beans is about 4 days. On October 14, 2024, the system finds through time comparison that the beans may have exceeded the fresh-keeping time. At this time, the appearance picture of the beans taken by the camera is checked, and it is found that the beans are a little shriveled, dark in color, and no longer fresh. It is comprehensively judged that the beans have deteriorated, so the operation of moving the beans to the ecological zone is started. The mobile platform transports the beans to the ecological zone according to the established procedures for crushing, fermentation and other treatments. This method is also applicable to other types of food. It can accurately grasp the changes in the freshness of food and promptly carry out ecological treatment of food that may spoil, reducing food waste caused by inaccurate time control. It also makes the entire fresh-keeping equipment more orderly in terms of ecological treatment, further improves its function in the construction of the ecological chain, and better meets the needs of environmental protection and resource recycling.

[0055] Embodiment 6

[0056] On the basis of the above embodiment, when the food information determines that the food needs ecological treatment, the step of moving the food to the ecological zone for ecological treatment includes: when the food information determines that the food needs ecological treatment, sending a prompt message to the user terminal; if feedback is received from the user confirming the treatment, moving the food to the ecological zone for ecological treatment; if feedback is received from the user reminding again, sending a prompt message to the user terminal after a preset time interval.

[0057] In the process of ecological processing of food by fresh-keeping equipment, how to combine ecological processing with user instructions is an important technical issue, so as to better meet the different needs of users and improve the flexibility of equipment use.

[0058] In the technical solution of this embodiment, when it is determined that the food needs ecological treatment through the judgment of food information, a prompt message will be sent to the user terminal, such as a mobile phone, first. The mobile phone will inform the user in the form of a pop-up window that the corresponding food may need ecological treatment, and clearly indicate the key information such as the location of the food, such as the prompt "The carrots in the upper left corner of the third layer (counting from the bottom to the top) have reached the latest consumption time. Do you need to process them?". If the user confirms the processing feedback, the device will start the process of moving the food to the ecological area for ecological treatment, and use the mobile platform driven by the motor to send the food to the ecological area according to the planned optimal path for subsequent operations, such as sending the spoiled carrots to the crushing device in the ecological area for shredding and then putting them into the storage box for fermentation. If the user receives feedback to remind again, the prompt message will be sent to the user terminal after a preset time interval. This preset time interval can be set by the user or determined by the device according to the default rules, such as an interval of 1 day or 2 days, etc., to remind the user again to make a decision on food processing, giving the user sufficient time to consider and operate. The whole process relies on the linkage between the mobile phone and the refrigerator and the corresponding information interaction to achieve.

[0059] The technical solution of this embodiment greatly improves the humanization and flexibility of the use of the device by combining ecological treatment with user instructions. For example, after the user receives a pop-up window reminding that a piece of pork in the refrigerator has reached the latest consumption time and needs to be processed, if the user happens to be free at this time, click to confirm the processing, and the device will quickly move the pork to the ecological area for corresponding ecological treatment, chop the pork and ferment it into fertilizer and other resources. However, if the user is busy at the time and clicks on the reminder again, the device will send a reminder to the user again according to the set interval, such as 4 hours later, and make a processing decision when the user is free later. In this way, the user will not be inconvenienced by the unilateral operation of the device, and the user's wishes and usage habits are fully respected. For different foods and different usage scenarios, this way of interacting with the user can reasonably arrange the ecological processing process of the food, thereby improving the user's satisfaction with the fresh-keeping equipment.

[0060] Embodiment 7

[0061] Figure 5 is a schematic diagram of the structure of a fresh-keeping device provided in an embodiment of the present application, such as Figure 5 As shown, in the technical solution of this embodiment, a control device for fresh-keeping equipment is provided, and the device includes: a collection module for obtaining food information of food in the fresh-keeping layer; a judgment module for judging whether the food needs ecological treatment based on the food information; and an execution module for moving the food to the ecological area for ecological treatment when the food information judges that the food needs ecological treatment.

[0062] On the basis that the fresh-keeping equipment has the corresponding structure for the ecological treatment of food, how to effectively control the fresh-keeping equipment to carry out ecological treatment of spoiled food is a technical problem that needs to be solved urgently.

[0063] In the technical solution of this embodiment, first, it is necessary to obtain food information of the food in the fresh-keeping layer. This process is achieved by relying on components such as cameras and odor sensors built into the refrigerator. The camera can collect picture information of food, such as judging whether the food shows signs of deterioration by photographing the color, shape and other characteristics of the food appearance. For example, if the surface of a tomato with bright color begins to become soft, rotten, or has black spots, it can be observed in the picture; the odor sensor collects the odor emitted by the food. Some foods will produce special odors after deterioration, and the odor sensor can keenly perceive this change. Then, based on the collected food information, it is judged whether the food needs ecological treatment. When it is found that the picture of the food shows deterioration characteristics or the odor changes abnormally, it is determined that the food needs ecological treatment. When it is determined that the food needs ecological treatment, the mobile platform and other structures are used to move the food to the ecological area for subsequent ecological treatment processes such as chopping and fermentation. The whole process relies on the motor to drive the mobile platform, according to the established path planning, the branch and bound method is adopted, and the optimal path is explored through the depth-first search algorithm to ensure that the food can be quickly and accurately transported to the ecological area.

[0064] The technical solution of this embodiment, through such a control method, allows the fresh-keeping equipment to respond intelligently when faced with spoiled food. For example, when the user puts a handful of green vegetables in the fresh-keeping layer, as the storage time increases, the camera captures that the leaves of the green vegetables begin to turn yellow and wilt, and the odor sensor also detects that the smell emitted by the green vegetables is no longer fresh. Combining this information, it is judged that the green vegetables have deteriorated. At this time, the device will start the process of moving the green vegetables to the ecological zone. Driven by the motor, the mobile platform will send the green vegetables to the crushing device in the ecological zone along the planned optimal path. The crushing device will chop the green vegetables and put them into the storage box for fermentation. Similarly, for other types of food such as meat and fruit, as long as there is deterioration, the equipment can accurately identify and orderly carry out ecological treatment, avoiding the waste of resources and environmental pressure caused by the arbitrary discarding of spoiled food, and the entire control process does not require too much manual intervention from the user, which greatly facilitates user use, and also improves the automation level and processing efficiency of the equipment in terms of ecological environmental protection.

[0065] Based on the above embodiment, the step of obtaining food information of the food in the fresh-keeping layer includes: obtaining a picture and / or smell of the food in the fresh-keeping layer; the step of judging whether the food needs ecological treatment based on the food information includes: judging whether the food is spoiled based on the picture and / or smell of the food in the fresh-keeping layer.

[0066] When controlling the preservation equipment to perform ecological processing on food, how to accurately determine whether the food needs ecological processing based on image sensors or odor sensors is the key. There are technical problems in this field that rely on these sensors to accurately determine the state of food in order to carry out ecological processing.

[0067] In the technical solution of this embodiment, in the step of obtaining food information of the fresh-keeping layer food, the image sensor, that is, the camera and the odor sensor are mainly used. The camera will obtain the picture information of the fresh-keeping layer food. It is installed at the top of each fresh-keeping layer in the refrigerator, and can clearly capture the overall appearance and detailed features of the food, such as whether there are mold spots, depressions, etc. on the surface of the apple. Through continuous image acquisition and comparison, the changes in the appearance of the food over time are analyzed. The odor sensor is responsible for collecting the odor emitted by the food. Different foods have obvious differences in odor when they are fresh and spoiled. For example, fresh milk has a light milky fragrance, while it will have a pungent odor such as sour odor after spoilage. The odor sensor can accurately perceive this odor change and feedback the data. Based on these pictures and / or odor information obtained from the fresh-keeping layer food, it is further judged whether the food needs ecological treatment. When the picture shows that the shape, color, etc. of the food have changes that meet the spoilage characteristics, or the odor sensor detects an abnormal odor, it is determined that the food has spoiled and needs ecological treatment, and then the corresponding movement and ecological treatment process is started.

[0068] The technical solution of this embodiment, by using the collaborative work of the image sensor and the odor sensor, the fresh-keeping equipment can make the judgment on whether the food needs ecological treatment more accurate and reliable. For example, when the user places a box of strawberries in the fresh-keeping layer, the camera will regularly take pictures of the strawberries. At first, the strawberries are bright and full in color. As time goes by, if the surface of the strawberries begins to become soft and rotten, grow hair, etc., they are captured in the picture, and the odor sensor also smells the odor of the strawberries that is no longer fresh but somewhat rotten. The device can accurately judge that the strawberries have deteriorated based on this, and then use the mobile platform to transport the strawberries to the ecological area for treatment. The same is true for various other foods. Whether it is vegetables, meat or other perishable foods, this method can timely detect the deterioration of food, avoid the problem of excessive waste of food or miss the best time for ecological treatment due to inability to accurately judge, improve the timeliness and effectiveness of the ecological treatment process of the entire fresh-keeping equipment, allow the equipment to play a better role in the construction of the ecological chain, and reduce the adverse effects of food deterioration on the environment.

[0069] On the basis of the above-mentioned embodiment, the step of obtaining food information of the food in the fresh-keeping layer includes: obtaining the placement information of the food in the fresh-keeping layer, wherein the placement information includes the placement time of the food; the step of judging whether the food needs ecological treatment based on the food information includes: judging whether the food has exceeded the fresh-keeping time based on the placement time of the food in the fresh-keeping layer and the current time; if the food has exceeded the fresh-keeping time, judging that the food is spoiled.

[0070] In the control link of ecological processing of food by fresh-keeping equipment, how to accurately judge whether food needs ecological processing based on the time when the ingredients are put in is a technical problem that needs to be solved.

[0071] In the technical scheme of this embodiment, in the step of obtaining food information of the fresh-keeping layer food, the placement information of the fresh-keeping layer food will be focused on, and the placement time is particularly critical. When the user puts the food into the fresh-keeping layer of the refrigerator, the fresh-keeping device will accurately record the time when the food is put in through the recording system, such as marked as "Carrot 202409201432" (indicating that carrots were put in at 14:32 on September 20, 2024), and at the same time, combined with the known shelf life of different foods, the system operation is used to determine whether the food has exceeded the fresh-keeping time. For example, for common green leafy vegetables, the fresh-keeping time may be about 3 to 5 days. If the recorded placement time plus the corresponding fresh-keeping time has reached or exceeded the current time, then it is preliminarily judged that the green leafy vegetables may have deteriorated. On this basis, the other appearance, smell and other characteristics of the food are further combined for secondary confirmation. If it does meet the relevant performance of deterioration, it is determined that the food needs ecological treatment, and then the food is moved to the ecological area through components such as mobile platforms for subsequent ecological treatment processes.

[0072] The technical solution of this embodiment makes the ecological treatment process of the fresh-keeping equipment more planned and reasonable by judging whether the food needs ecological treatment based on the time the food is put in. For example, the user puts a handful of beans in the fresh-keeping layer, and the equipment records the time of its placement as 10:00 on October 10, 2024. It is known that the fresh-keeping time of beans is about 4 days. On October 14, 2024, the system finds through time comparison that the beans may have exceeded the fresh-keeping time. At this time, the appearance picture of the beans taken by the camera is checked, and it is found that the beans are a little shriveled, dark in color, and no longer fresh. It is comprehensively judged that the beans have deteriorated, so the operation of moving the beans to the ecological zone is started. The mobile platform transports the beans to the ecological zone according to the established procedures for crushing, fermentation and other treatments. This method is also applicable to other types of food. It can accurately grasp the changes in the freshness of food and promptly carry out ecological treatment of food that may spoil, reducing food waste caused by inaccurate time control. It also makes the entire fresh-keeping equipment more orderly in terms of ecological treatment, further improves its function in the construction of the ecological chain, and better meets the needs of environmental protection and resource recycling.

[0073] On the basis of the above embodiment, when the food information determines that the food needs ecological treatment, the step of moving the food to the ecological zone for ecological treatment includes: when the food information determines that the food needs ecological treatment, sending a prompt message to the user terminal; if feedback is received from the user confirming the treatment, moving the food to the ecological zone for ecological treatment; if feedback is received from the user reminding again, sending a prompt message to the user terminal after a preset time interval.

[0074] In the process of ecological processing of food by fresh-keeping equipment, how to combine ecological processing with user instructions is an important technical issue, so as to better meet the different needs of users and improve the flexibility of equipment use.

[0075] In the technical solution of this embodiment, when it is determined that the food needs ecological treatment through the judgment of food information, a prompt message will be sent to the user terminal, such as a mobile phone, first. The mobile phone will inform the user in the form of a pop-up window that the corresponding food may need ecological treatment, and clearly indicate the key information such as the location of the food, such as the prompt "The carrots in the upper left corner of the third layer (counting from the bottom to the top) have reached the latest consumption time. Do you need to process them?". If the user confirms the processing feedback, the device will start the process of moving the food to the ecological area for ecological treatment, and use the mobile platform driven by the motor to send the food to the ecological area according to the planned optimal path for subsequent operations, such as sending the spoiled carrots to the crushing device in the ecological area for shredding and then putting them into the storage box for fermentation. If the user receives feedback to remind again, the prompt message will be sent to the user terminal after a preset time interval. This preset time interval can be set by the user or determined by the device according to the default rules, such as an interval of 1 day or 2 days, etc., to remind the user again to make a decision on food processing, giving the user sufficient time to consider and operate. The whole process relies on the linkage between the mobile phone and the refrigerator and the corresponding information interaction to achieve.

[0076] The technical solution of this embodiment greatly improves the humanization and flexibility of the use of the device by combining ecological treatment with user instructions. For example, after the user receives a pop-up window reminding that a piece of pork in the refrigerator has reached the latest consumption time and needs to be processed, if the user happens to be free at this time, click to confirm the processing, and the device will quickly move the pork to the ecological area for corresponding ecological treatment, chop the pork and ferment it into fertilizer and other resources. However, if the user is busy at the time and clicks on the reminder again, the device will send a reminder to the user again according to the set interval, such as 4 hours later, and make a processing decision when the user is free later. In this way, the user will not be inconvenienced by the unilateral operation of the device, and the user's wishes and usage habits are fully respected. For different foods and different usage scenarios, this way of interacting with the user can reasonably arrange the ecological processing process of the food, thereby improving the user's satisfaction with the fresh-keeping equipment.

[0077] Embodiment 8

[0078] In the technical solution of this embodiment, a computer device is provided, including a memory, a processor and a computer program stored in the memory, and the processor executes the computer program to implement the steps of the control method of the fresh-keeping device in any of the above embodiments.

[0079] In the technical solution of this embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the control method of the fresh-keeping device in any of the above embodiments are implemented.

[0080] In the technical solution of this embodiment, a computer program product is provided, including a computer program, which, when executed by a processor, implements the steps of the control method of the fresh-keeping device of any of the above embodiments.

[0081] The processor may include, but is not limited to, for example, one or more processors or microprocessors. Each processor may be an application specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components to implement the method in the above embodiment. The computer readable storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the computer readable storage medium may include, but is not limited to, for example, a random access memory (RAM), a read-only memory (ROM), a flash memory, an EPROM memory, an EEPROM memory, a register, a computer storage medium (such as a hard disk, a floppy disk, a solid state drive, a removable disk, a CDROM, a DVDROM, a Blu-ray disc, etc.).

[0082] The computer-readable storage medium may also store at least one computer executable program / instruction, which may be, for example, a computer-readable instruction. The computer-readable storage medium includes, but is not limited to, for example, a volatile memory and / or a non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and / or a cache memory (cache), etc. The computer-readable storage medium may include, for example, a read-only memory (ROM), a hard disk, a flash memory, etc. For example, a non-transitory computer-readable storage medium may be connected to a computing device such as a computer, and then, when the computing device runs the computer-readable instructions stored on the computer-readable storage medium, the various methods described above may be performed.

[0083] In addition, the computer device may also include (but not limited to) a data bus, an input / output (I / O) bus, a display, and an input / output device (e.g., a keyboard, a mouse, a speaker, etc.). The processor may communicate with external devices via the I / O bus via a wired or wireless network. In one embodiment, the at least one computer executable instruction may also be compiled into or constitute a software product / computer program product, wherein one or more computer executable instructions are executed by the processor to perform the various functions and / or steps of the method in the embodiments described in the present technology.

[0084] Embodiment 9

[0085] Based on the above embodiments, this embodiment provides an application example.

[0086] This application example provides a refrigerator method that can form an ecological chain. Currently, refrigerators on the market focus on fresh-keeping technology, but there are very few refrigerators that pay attention to environmental protection and ecology. The air quality is a bit worse than before, so we need to pay more attention to the ecological cycle and make more contributions to our lives. Based on this, a refrigerator method that can form an ecological chain was invented.

[0087] Today, the competition in the refrigerator and other fresh-keeping equipment market is mainly focused on fresh-keeping technology. However, there are very few products that pay attention to environmental protection and ecology. With the decline in air quality, the importance of ecological protection has become increasingly prominent, and its role in improving the quality of life has become increasingly significant. In view of this, this field is in urgent need of a refrigerator technology that can build an ecological chain to bring more positive changes to life and promote the sustainable development of the ecological environment. There are technical issues in this field on how to ecologically process food.

[0088] The technical problems solved by this application example include: 1. How to turn waste into treasure; 2. How to intelligently identify spoiled food. The technical solution of the present invention uses modern technology to identify the freshness of food in the refrigerator, prompt the user, and automatically process inedible food. The technical solution of the present invention uses RFID, image recognition and other technologies to achieve food management, and obtain the food status through monitoring and perform corresponding processing.

[0089] This application example includes the following steps:

[0090] 1. Identify the status of food.

[0091] Figure 6 Schematic diagram of a food processing process provided by an application example of the present invention. Figure 6As shown, in the technical solution of the present invention, the refrigerator is equipped with a camera and an odor sensor. When the user puts food into the refrigerator, the camera, RFID and image recognition technology are used to distinguish the current food, and the current state of the food and the placement time (year, month, day, hour and minute) are recorded, with a mark such as: "Carrot 202409201432" (indicating that carrots were put in at 14:32 on September 20, 2024). The odor sensor collects the odor of the current food, and estimates the latest consumption time of the carrots through the known shelf life of the food, and the data is viewed on the screen.

[0092] When the latest time for eating carrots is approaching, images and / or smells of the carrots are acquired to determine whether the carrots are close to being spoiled. If the carrots are close to being spoiled, the user is prompted to perform ecological treatment on the carrots; if the carrots are already in a spoiled state, the carrots are subjected to ecological treatment.

[0093] 2. Automatic processing device.

[0094] The state of food such as carrots can be identified through the camera and odor sensor, and data can be transmitted through WiFi. The TCP protocol is used to use the camera as the server, and a connection with the mobile phone is established through Socket programming. The raw video data collected by the camera is encoded using the FFmpeg video encoding library, and then sent to the user through the network.

[0095] The mobile phone screen sends a pop-up window to ask the user whether the food needs to be processed and clearly indicates the location of the food. For example: The color of the carrot in the upper left corner of the third layer (counting from the bottom to the top) has changed. It is suspected to be spoiled. Please confirm whether it needs to be processed? If the user clicks to confirm, the current compartment will automatically move and the corresponding carrot food will be placed in the ecological area. If the user clicks to cancel, it will ask how many days will it take to remind you again? Or no longer remind; or for example: The carrot in the upper left corner of the third layer (counting from the bottom to the top) has reached the latest consumption time. Do you need to process it? If the user clicks to confirm, the current compartment will automatically move and the corresponding food will be placed in the ecological area. If the user clicks to cancel, it will ask how many days will it take to remind you again? Or no longer remind.

[0096] 3. Automatically move the compartment.

[0097] Square mobile platforms are made of high-density polyethylene (HDPE) material as automatic mobile compartments / food placement areas. Each square mobile platform (food placement area) has four rollers, a gravity sensor, and a cover sensor, so that each square mobile platform / food placement area can move left and right, forward and backward. The food placement area is driven by a motor. Each layer has a support to assist the square platform / food placement area of ​​the layer to move within the specified position and will not deviate from the specified position. An ecological area is set on the right side of the refrigerator. When food is placed on the food placement area, the platform senses that there is an object pressing on the current food placement area through the gravity sensor, and senses the area of ​​the current object through the cover sensor and informs the system of the storage location of the food on the large screen; when the object is received as spoiled food, the platforms pressed by the object will run in the same direction at the same time. The running path is calculated by big data to obtain the fastest delivery to the ecological area. When arriving at the ecological area, the rollers continue to operate and put the object in. The motor is set in the compressor area.

[0098] The fastest way to deliver the food to the ecological zone is to use the branch and bound method. When the user clicks on the phone to confirm that the food needs to be processed, the food to be processed is in the initial state. The depth-first search algorithm is used to explore along a path until it cannot continue or the target state is reached. If it cannot continue, it will go back to the previous node with other options and continue to explore other paths. During the exploration process, the path information is recorded, and branches that obviously lead to dead ends or are far away from the target are excluded. After the exploration is completed, the optimal path is executed to deliver the food to the ecological zone for fermentation and other ecological treatments.

[0099] In the technical solution of the present invention, the entire platform cannot be occupied, and a certain amount of space must be left for movement; if the food is piled up and cannot be moved, a pop-up window will appear on the screen to remind the user that manual processing is required.

[0100] The left and right sides and the top of each layer of movable partitions are tightly attached to the inner wall of the refrigerator and cannot be removed for cleaning. The power supply device is set here to provide sufficient power to each layer of movable partitions. The pulse width modulation strategy is used to change the duty cycle of the pulse signal to control the average input voltage of the motor. By adjusting the duty cycle, the speed of the motor is controlled. Each movable partition follows the prescribed program and running direction to reach the destination. The movable partition is a square platform (food placement area).

[0101] 4. Variation treatment area / ecological zone.

[0102] The eco-zone box is composed of a crushing device / chopper and a storage box. Each layer has its own crushing device / chopper. When spoiled food contacts the crushing device / chopper, it is chopped by the crushing device / chopper. The chopped food enters a storage box with good sealing for fermentation. The lid of the storage box is composed of a spring and a panel. When chopped food comes down, the lid will be pressed down because it cannot bear the weight, and the food will enter the storage box. Without the weight pressure, the lid will rebound and close tightly. 10ml of fermentation agent can be put in to accelerate the fermentation speed. The current capacity can be checked on the outside of the box. When the capacity reaches a certain level, the notification screen informs the user that it needs to be cleaned in time. The technical solution of the present invention designs multiple eco-zone boxes, which is convenient for users to choose to separate meat, vegetables, and fruits in different layers, and ferment different foods according to the user's preferences to obtain the required fertilizer.

[0103] The inlay method of the ecological zone box: the side of the shredder has a groove, and the storage box has a protruding strip inside, which can be pulled out from the front and pushed in from the front to close. The shredder is connected in parallel with the mobile partition and cannot be separated. The power supply method is the same as the mobile partition.

[0104] 5. Remote control.

[0105] Figure 7 This is a schematic diagram of a mobile terminal control provided by an application example of the present invention. Figure 7 As shown, after the mobile phone is linked with the refrigerator, when mutated food is identified, the mobile phone will receive the information and prompt the user in the form of a pop-up window. If it is detected that the user clicks to confirm, the refrigerator will perform the corresponding operation; if it is detected that the user clicks to cancel, it will ask whether to remind again after a few days or not.

[0106] When the user confirms the process, the refrigerator will respond that the food is full and cannot be moved. The user can click to perform remote operation manually.

[0107] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the above-mentioned module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0108] It should be noted that, in the present invention, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0109] Although the embodiments disclosed in the present invention are as above, the above contents are only embodiments adopted for facilitating the understanding of the present invention and are not intended to limit the present invention. Any technician in the technical field to which the present invention belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A fresh-keeping device, characterized in that: The device comprises: A fresh-keeping layer, comprising a food placement area and an ecological area adjacent to the food placement area; The food placement area includes a plurality of mobile platforms for moving food to the ecological area; The ecological zone is used to chop up the food moved to the ecological zone and store it in a storage box for ecological processing.

2. The fresh-keeping device according to claim 1, characterized in that: The ecological zone comprises a crushing device and a storage box. The crushing device is arranged above the storage box and is used to chop the food moved to the ecological zone and store it in the storage box for fermentation.

3. A control method for the fresh-keeping device according to claim 1 or 2, characterized in that: The method comprises: Get food information of food in the fresh-keeping layer; Determining whether the food needs ecological treatment based on the food information; When the food information determines that the food needs ecological treatment, the food is moved to an ecological area for ecological treatment.

4. The control method of the fresh-keeping equipment according to claim 3, characterized in that: The step of obtaining food information of the food in the fresh-keeping layer includes: obtaining pictures and / or smells of the food in the fresh-keeping layer; The step of judging whether the food needs ecological treatment based on the food information includes: judging whether the food is spoiled based on the picture and / or smell of the food in the fresh-keeping layer.

5. The control method of the fresh-keeping equipment according to claim 3, characterized in that: The step of obtaining food information of the food in the fresh-keeping layer includes: obtaining placement information of the food in the fresh-keeping layer, wherein the placement information includes the placement time of the food; The step of judging whether the food needs ecological treatment based on the food information includes: Based on the placement time of the food in the fresh-keeping layer and the current time, determining whether the food has exceeded the fresh-keeping time; If the food has exceeded the shelf life, it is determined that the food has deteriorated.

6. The control method of the fresh-keeping equipment according to claim 3, characterized in that: When the food information determines that the food needs ecological treatment, the step of moving the food to an ecological zone for ecological treatment includes: If the food information determines that the food needs ecological treatment, sending a prompt message to the user terminal; If feedback is received from the user confirming the processing, the food is moved to the ecological area for ecological processing; If a reminder is received from the user, the reminder message will be sent to the user terminal after a preset time interval.

7. A control device based on the fresh-keeping equipment according to claim 1 or 2, characterized in that: The device comprises: A collection module, used to obtain food information of food in the fresh-keeping layer; A judgment module, used for judging whether the food needs ecological treatment based on the food information; An execution module is used to move the food to an ecological area for ecological treatment when the food information determines that the food needs ecological treatment.

8. A computer device comprising a memory, a processor and a computer program stored in the memory, characterized in that: The processor executes the computer program to implement the steps of the control method of the fresh-keeping device according to any one of claims 3 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the control method of the fresh-keeping device described in any one of claims 3 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the control method of the fresh-keeping device described in any one of claims 3 to 6 are implemented.

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