CN113446791A - Food preservation method, control device, refrigerator and preservation system - Google Patents
Food preservation method, control device, refrigerator and preservation system Download PDFInfo
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- CN113446791A CN113446791A CN202010211411.0A CN202010211411A CN113446791A CN 113446791 A CN113446791 A CN 113446791A CN 202010211411 A CN202010211411 A CN 202010211411A CN 113446791 A CN113446791 A CN 113446791A
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- accommodating space
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2500/00—Problems to be solved
- F25D2500/06—Stock management
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/122—Sensors measuring the inside temperature of freezer compartments
Abstract
The application discloses a food preservation method, a control device, a refrigerator and a preservation system, wherein the food preservation method is applied to the refrigerator, the refrigerator is provided with an air-conditioning preservation box body and an identification module, the air-conditioning preservation box body is provided with an accommodating space capable of being sealed and an air-conditioning generation device capable of adjusting the oxygen content of the accommodating space, and the food preservation method comprises the following steps: controlling the identification module to identify the food types in the accommodating space; controlling the modified atmosphere generating device to adjust the oxygen content of the accommodating space according to the recognition result so as to enable the accommodating space to be suitable for the fresh keeping of the food; this application is through the discernment module, according to the operation parameter of discernment result automatically regulated gas generating device, removes manual regulation gas parameter from for gas generating device can automatically regulated accommodating space's oxygen content, thereby can provide the fresh-keeping effect to food.
Description
Technical Field
The application relates to the technical field of preservation, in particular to a food preservation method, a control device, a refrigerator and a preservation system.
Background
At present, the food preservation mode is that a modified atmosphere preservation device is usually arranged in a food storage space, and the oxygen content of the storage space is controlled by adjusting the parameters of the modified atmosphere preservation device, so that the preservation period of the food is prolonged, for example, the oxygen content in the storage space is reduced, and the aerobic respiration of fruits can be inhibited; however, the air-conditioning preservation device needs manual parameter configuration, the precision degree and the automation degree are low, and the preservation effect is far difficult to achieve the expectation.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides a food preservation method, a control device, a refrigerator and a preservation system, which can realize automatic adjustment of oxygen content and improve the preservation effect of food.
The food preservation method according to the embodiment of the first aspect of the application is applied to a refrigerator, the refrigerator is provided with a modified atmosphere preservation box body and an identification module, the modified atmosphere preservation box body is provided with a containing space capable of being sealed and a modified atmosphere generation device capable of adjusting the oxygen content of the containing space, and the food preservation method comprises the following steps:
controlling the identification module to identify the food types in the accommodating space;
and controlling the modified atmosphere generating device to adjust the oxygen content of the accommodating space according to the identified food types so as to enable the adjusted accommodating space to be suitable for keeping food fresh.
According to the food fresh-keeping method of the embodiment of the first aspect of the application, at least the following beneficial effects are achieved: set up the gas conditioning preservation box body that is used for fresh-keeping food in the refrigerator, through the identification module, the food class in the discernment accommodating space, according to the fresh-keeping environmental requirement of every food class, automatic calculation obtains the best oxygen content that is suitable for current food class, then control gas conditioning generating device and adjust the oxygen content of current accommodating space, the fresh-keeping time limit of extension food, the operating parameter of this application automatic regulation gas conditioning generating device according to the recognition result, remove manual regulation gas conditioning parameter, make gas conditioning generating device can the oxygen content of automatically regulated accommodating space, thereby can provide the fresh-keeping effect to food.
According to some embodiments of the first aspect of the present application, the controlling the identification module to identify the food item class in the receiving space comprises:
controlling the identification module to acquire food images in the accommodating space in response to the opening of the modified atmosphere preservation box body;
identifying a food item class in the food item image;
and updating the food categories stored in the storage space based on the food categories.
According to some embodiments of the first aspect of the present application, the controlling the identification module to identify the food item class in the receiving space comprises:
controlling the identification module to continuously acquire food images in response to the opening of the modified atmosphere preservation box body;
identifying food categories in the food images which are continuously acquired and moving tracks of food in the food images which are continuously acquired;
setting a moving mark for the food in the food image according to the moving track, wherein the moving mark is a first mark or a second mark, the first mark indicates that the moving track corresponds to the food being put into the accommodating space, and the second mark indicates that the moving track corresponds to the food being taken out of the accommodating space;
and updating the food categories stored in the accommodating space according to the food categories in the food images and the moving marks.
According to some embodiments of the first aspect of the present application, the food item in the food image is identified in response to closing of the modified atmosphere cartridge.
According to some embodiments of the first aspect of the present application, the controlling the modified atmosphere generating device to adjust the oxygen content of the receiving space according to the identified food item comprises:
acquiring a preset preservation environment parameter corresponding to the food product type according to the recognized food product type, wherein the preset preservation environment parameter at least comprises a preset oxygen content value;
adjusting the operating parameters of the controlled atmosphere generating device according to the preset fresh-keeping environmental parameters;
and controlling the controlled atmosphere generating device to adjust the oxygen content of the accommodating space according to the operating parameters.
According to some embodiments of the first aspect of the present application, the accommodating space is provided with an oxygen sensor, and the adjusting of the operating parameters of the modified atmosphere generating device according to the preset fresh-keeping environmental parameters includes:
controlling the oxygen sensor to acquire a current oxygen content value of the accommodating space;
and if the current oxygen content value is higher than the preset oxygen content value, adjusting the operating parameters of the modified atmosphere generating device.
According to some embodiments of the first aspect of the present application, the adjusting the operating parameters of the modified atmosphere generating device comprises:
and changing the deoxygenation rate of the modified atmosphere generation device according to the difference value between the current oxygen content value and the preset oxygen content value.
According to some embodiments of the first aspect of the present application, the refrigerator is further provided with a temperature sensor and a humidity sensor, and the food preservation method further comprises:
controlling the temperature sensor to obtain a current temperature value;
controlling the humidity sensor to obtain a current humidity value;
and adjusting the fresh-keeping environmental parameters of the accommodating space according to the current temperature value, the current humidity value and the current oxygen content value, so that the adjusted accommodating space is suitable for keeping food fresh.
Some embodiments according to the first aspect of the present application further comprise:
responding to the opening of a door body of the refrigerator or responding to the opening of the air-conditioned preservation box body, and controlling the identification module to acquire food images;
and identifying the food category of the food image, and sending out a guidance prompt according to the food category.
According to some embodiments of the first aspect of the present application, the modified atmosphere generating device regulates the oxygen content by means of an electrochemical reaction.
A control device according to an embodiment of a second aspect of the present application, comprising a control processor and a memory for communicative connection with the control processor; the memory stores instructions executable by the control processor to enable the control processor to perform a method of preserving food as described in any one of the preceding claims.
According to the control device of the embodiment of the second aspect of the application, at least the following beneficial effects are achieved: the control device executes the food preservation method, automatically adjusts the operation of the controlled atmosphere generation device so as to preserve food in the controlled atmosphere preservation box, identifies food types in the accommodating space through an identification technology, automatically calculates and obtains the optimal oxygen content suitable for the current food types according to the preservation environment requirement of each food type, then controls the controlled atmosphere generation device to adjust the oxygen content of the current accommodating space, and prolongs the preservation period of the food.
According to the refrigerator of the third aspect embodiment of the application, the refrigerator is provided with the controlled atmosphere preservation box body, the identification module and the control device, the controlled atmosphere preservation box body is provided with an accommodating space capable of being sealed and a controlled atmosphere generation device capable of adjusting the oxygen content of the accommodating space, an oxygen sensor, a temperature sensor and a humidity sensor are arranged in the accommodating space, the identification module is arranged on the inner side of the refrigerator, and the identification module, the controlled atmosphere generation device, the oxygen sensor, the temperature sensor and the humidity sensor are respectively in communication connection with the control device.
According to the refrigerator of the embodiment of the third aspect of the application, at least the following beneficial effects are achieved: the refrigerator structurally comprises an air-conditioned fresh-keeping box body and an identification module, wherein the air-conditioned fresh-keeping box body is used for keeping food fresh, an air-conditioned generation device is arranged in the air-conditioned fresh-keeping box body, a control device of the refrigerator identifies food types in a containing space by executing the food fresh-keeping method, the optimal oxygen content suitable for the current food types is obtained through automatic calculation according to the fresh-keeping environment requirement of each food type, then the air-conditioned generation device is controlled to adjust the oxygen content of the current containing space, the fresh-keeping period of the food is prolonged, the operation parameters of the air-conditioned generation device are automatically adjusted according to the identification result, manual adjustment of air-conditioned parameters is omitted, the oxygen content of the containing space can be automatically adjusted by the air-conditioned generation device, and therefore the food fresh-keeping effect can be provided.
The fresh-keeping system comprises a refrigerator and a cloud server, wherein the refrigerator is provided with an air-conditioning fresh-keeping box body and an identification module, the air-conditioning fresh-keeping box body is provided with an accommodating space capable of being sealed and an air-conditioning generating device capable of adjusting the oxygen content of the accommodating space, an oxygen sensor, a temperature sensor and a humidity sensor are arranged in the accommodating space, and the identification module is arranged on the inner side of the refrigerator; the cloud server is provided with the control device, and the identification module, the modified atmosphere generating device, the oxygen sensor, the temperature sensor and the humidity sensor are in communication connection with the control device respectively.
The freshness keeping system according to the embodiment of the fourth aspect of the present application has at least the following advantages: the control device is arranged in the cloud server and controls the refrigerator through a network, so that identification operation and automatic fresh-keeping parameter calculation are realized on the cloud server, the refrigerator is controlled to pass through an identification technology, food in the accommodating space is identified, the optimal oxygen content suitable for the fresh keeping of the current environment is obtained through automatic calculation according to the fresh-keeping environment requirement of each food type, then the controlled atmosphere generating device is controlled to adjust the oxygen content of the current accommodating space, the fresh-keeping period of the food is prolonged, the operating parameters of the controlled atmosphere generating device are automatically adjusted according to identification results, manual adjustment of controlled atmosphere parameters is omitted, the oxygen content of the accommodating space can be automatically adjusted through the controlled atmosphere generating device, and the food fresh-keeping effect can be provided.
A computer-readable storage medium according to a fifth embodiment of the present application stores computer-executable instructions for causing a computer to perform a method for refreshing a food product as described in any one of the above.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of an apparatus platform according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a control device according to an embodiment of the present application;
FIG. 3 is a flow chart of a method for preserving food according to an embodiment of the present application;
FIG. 4 is a flow chart of a method for preserving food according to another embodiment of the present application;
FIG. 5 is a flow chart of a method for preserving food according to another embodiment of the present application;
FIG. 6 is a flow chart of a method for preserving food according to another embodiment of the present application;
FIG. 7 is a flow chart of a method for preserving food according to another embodiment of the present application;
FIG. 8 is a flow chart of a method for preserving food according to another embodiment of the present application;
fig. 9 is a flowchart of a method for preserving food according to another embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present number, and larger, smaller, inner, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.
The prior method for keeping food fresh is generally to adjust the oxygen content of a storage space so as to create a nitrogen-rich and oxygen-poor environment in the storage space, inhibit the food from aging and prolong the fresh-keeping period of the food. The oxygen content is usually adjusted by using a modified atmosphere preservation device, but the preservation environments of different food products are different, for example, the preservation environments of meat food and fruit and vegetable food are different, and a user needs to manually configure parameters to enable the working mode of the modified atmosphere preservation device to be suitable for the preservation of the current food.
Based on the above, the application provides a food preservation method, a control device, a refrigerator and a preservation system, the food related to the application is stored in a modified atmosphere preservation box body of the refrigerator, the modified atmosphere preservation box body is provided with a closed accommodating space and a modified atmosphere generating device capable of adjusting the oxygen content of the accommodating space, wherein the modified atmosphere preservation box body is an independent space which is divided in the refrigerator and used for food preservation, and has certain air tightness in a closed state; set up the discernment module at the refrigerator inboard, the discernment module orientation is adjusted atmosphere and is kept fresh the food information of box body in order to gather accommodating space, set up the gas of adjusting fresh the box body that is used for keeping fresh food in the refrigerator, through the discernment module, the food category in the discernment accommodating space, according to the fresh-keeping environmental requirement of every food category, automatic calculation obtains the best oxygen content that is suitable for current food category, then control gas regulation generating device adjusts the oxygen content of current accommodating space, the fresh-keeping time limit of extension food, this application adjusts gas regulation generating device's operating parameter according to the discernment result automatically regulated, remove manual regulation gas regulation parameter from, make gas regulation generating device can automatically regulated accommodating space's oxygen content, thereby can provide the fresh-keeping effect to food.
The embodiments of the present application will be further explained with reference to the drawings.
Referring to fig. 1, fig. 1 is a schematic diagram of an apparatus platform 100 for performing a food preservation method according to an embodiment of the present application. The device platform 100 of the present application may be a refrigerator, or a preservation system composed of a refrigerator and a cloud server. If the device platform 100 is a refrigerator, the refrigerator is provided with an air-conditioning preservation box body 101 and an identification module 102, the air-conditioning preservation box body 101 is provided with a closed accommodating space and an air-conditioning generating device capable of adjusting the oxygen content of the accommodating space, wherein the air-conditioning preservation box body 101 is an independent space which is divided in the refrigerator and is used for preserving food, and is of a drawer structure for example; the identification module 102 identifies the food by using an identification technology, and the identification module 102 may have a plurality of implementation manners, for example, the identification module 102 may be a camera or an ultrasonic detector; the modified atmosphere generating device can be an electrochemical oxygen removing device for adjusting the oxygen content in an electrochemical reaction mode, or can be a mechanical gas exchange structure for filling nitrogen-rich gas into the modified atmosphere preservation box body 101 in a ventilation mode. In addition, the refrigerator also comprises an oxygen sensor, a temperature sensor and a humidity sensor, wherein the oxygen sensor, the temperature sensor and the humidity sensor are arranged in the refrigerator. If the device platform 100 is a preservation system and comprises a refrigerator and a cloud server, the refrigerator is provided with an air-conditioning preservation box body 101 and an identification module 102, the air-conditioning preservation box body 101 is provided with an accommodating space which can be closed and an air-conditioning generating device which can adjust the oxygen content of the accommodating space, an oxygen sensor, a temperature sensor and a humidity sensor are arranged in the accommodating space, and the identification module 102 is arranged on the inner side of the refrigerator; the cloud server is connected with the refrigerator through a network, and the food preservation method is executed together.
Referring to fig. 2, fig. 2 is a schematic diagram of a control device 200 according to an embodiment of the present application. The refrigerator or the cloud server may be provided with the control device 200, specifically, the control device 200 may be built in the refrigerator, may be accessed to an electric control system of the refrigerator through an external interface or the like, may be provided in the cloud server, and sends a control instruction to the refrigerator through a network; the control device 200 includes a control processor 201 and a memory 202, and fig. 2 illustrates one control processor 201 and one memory 202 as an example.
The control processor 201 and the memory 202 may be connected by a bus or other means, and fig. 2 illustrates the connection by a bus as an example.
The memory 202, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer-executable programs. Further, the memory 202 may include high-speed random access memory 202, and may also include non-transitory memory 202, such as at least one piece of disk memory 202, flash memory device, or other piece of non-transitory solid-state memory 202. In some embodiments, the memory 202 may optionally include memory 202 located remotely from the control processor 201, and these remote memories 202 may be connected to the control device 200 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Those skilled in the art will appreciate that the configuration of the device shown in FIG. 2 does not constitute a limitation of the control device 200, and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
In the device platform 100 shown in fig. 1, the control processor 201 may be configured to call a food preservation control program stored in the memory 202 to implement a food preservation method.
Based on the hardware structure of the device platform 100, various embodiments of the food preservation method of the present application are proposed.
Referring to fig. 3, fig. 3 is a flowchart of a food preservation method according to an embodiment of the present application, in which a refrigerator includes a modified atmosphere preservation box and an identification module, the modified atmosphere preservation box is provided with a receiving space capable of being sealed and a modified atmosphere generating device capable of adjusting an oxygen content of the receiving space, and the preservation method includes, but is not limited to, the following steps:
s301, controlling the identification module to identify food types in the accommodating space;
and S302, controlling the modified atmosphere generating device to adjust the oxygen content of the accommodating space according to the identified food type, so that the adjusted accommodating space is suitable for keeping the food fresh.
In one embodiment, the modified atmosphere preservation box body can be an independent device for preserving food, is arranged in the refrigerator in a drawer structure, and can be used for putting or taking out the food in the modified atmosphere preservation box body by pulling a drawer door of the modified atmosphere preservation box body; because the controlled atmosphere preservation box body and the chamber in the refrigerator are separated, the preservation environment in the controlled atmosphere preservation box body cannot influence other foods in the refrigerator, and users can respectively store the foods according to the requirements of the users; for example, a user can place food which is easy to deteriorate into the modified atmosphere preservation box body, and food with a relatively long preservation period can be placed outside the modified atmosphere preservation box body, so that different preservation environments can be obtained in the same refrigerator, and the preservation effect of the refrigerator is improved. Referring to fig. 1, fig. 1 schematically illustrates a structure in a refrigerator, in fig. 1, an identification module 102 for acquiring an image of food is disposed inside the refrigerator, the identification module 102 faces an accommodating space so as to collect food information inside the accommodating space, and the identification module 102 may be disposed at a plurality of positions, for example, may be disposed at the top of the inside of the refrigerator, so that the identification module 102 may also collect an image of the whole inside of the refrigerator; the recognition module 102 may be a visual recognition module, such as a common camera, capable of capturing images and/or videos to obtain images of food; the identification module 102 may also be an ultrasonic detector, and identifies the shape of the food by means of ultrasonic identification technology and the like; the modified atmosphere generating device can be an electrochemical oxygen removing device, the oxygen content is adjusted in an electrochemical reaction mode, for example, the module electrode and the oxygen in the accommodating space are subjected to oxidation-reduction reaction to consume the oxygen, and in this case, the reaction surface of the modified atmosphere generating device is in contact with the gas in the accommodating space; in addition, the modified atmosphere generator may be a mechanical gas exchange structure, such as by pumping out oxygen from the receiving space or by filling nitrogen-rich gas, in which case the gas inlet and outlet of the modified atmosphere generator may be located on the sidewall of the modified atmosphere box 101.
It is worth noting that the modified atmosphere generating device and the modified atmosphere preservation box body form a whole in the embodiment of the application, so that a certain space can be saved for the refrigerator; for example, the electrochemical oxygen removal device is integrated in a module form, and an electrochemical reaction surface is contacted with gas in the accommodating space, and the electrochemical oxygen removal device can be arranged on one side wall of the modified atmosphere preservation box body or directly used as one side wall of the modified atmosphere preservation box body, so that the integration level of the whole refrigerator is improved; the mechanical gas exchange structure comprises a vacuum pump, an air inlet pipe, an air outlet pipe, an adsorption cylinder and a nitrogen storage tank which are integrated in a shell, wherein the vacuum pump regulates the gas components in the modified atmosphere preservation box body through the air inlet pipe and the air outlet pipe; among the prior art, the aspiration pump is independent setting at the refrigerator back usually, adjust the gas composition in the gas conditioning fresh-keeping box body through modes such as gas conditioning membrane, but the governing speed of gas conditioning membrane is slower, and the effect is general, and under this structure, the aspiration pump need occupy a part space of refrigerator, the aspiration pump also needs extra intake pipe and outlet duct to wind in the gas conditioning fresh-keeping box body, be unfavorable for improving the integrated level of refrigerator, this kind of external aspiration pump during operation noise is great simultaneously, use experience is not good.
In the embodiment, the food types in the accommodating space are identified through the identification module 102, and the oxygen content which should be set in the current storage environment is calculated by using an automatic preservation algorithm, so that corresponding configuration parameters are generated to automatically control the operation of the modified atmosphere generating device, the oxygen content in the accommodating space is adjusted, the gas environment of the accommodating space is suitable for preserving the food in the current accommodating space, the automatic control preservation is realized, and the problem caused by manual configuration of parameters is avoided; the automatic fresh-keeping algorithm is built in the control device 200, and by receiving input parameters such as food types obtained through recognition, the fresh-keeping parameters for the food types can be rapidly output. It should be noted that although only adjusting the oxygen content is mentioned in the embodiment, the environmental factors affecting the preservation period of the food include temperature, humidity, and the like in addition to the oxygen content, because the food preservation method of the present application is applied to the refrigerator, in some cases, the environmental factors such as temperature, humidity, and the like can be controlled by other components of the refrigerator, the modified atmosphere generating device of the present application can only adjust the oxygen content, and in this case, the automatic preservation algorithm can use the environmental factors such as temperature, humidity, and the like as additional input parameters, so that the modified atmosphere generating device can be controlled more accurately and the operation state of the refrigerator can be adjusted; the implementation of the automatic freshness keeping algorithm will be described in detail later.
In an embodiment, referring to fig. 4, fig. 4 is a flowchart of a food preservation method according to another embodiment of the present application, and step S301 includes the following steps:
s401, responding to the opening of the air-conditioned fresh keeping box body, and controlling the identification module to acquire food images in the accommodating space;
s402, identifying food categories in the food images;
and S403, updating the food items stored in the storage space based on the food items.
In the embodiment, a static visual recognition technology is adopted, so that the recognition module of the embodiment is a visual recognition module, such as a camera, when a user opens the modified atmosphere preservation box body with a drawer structure, the accommodating space enters the acquisition range of the camera, the control device controls the camera to acquire food images in the accommodating space, and food in the accommodating space is recognized through the visual recognition technology; in the process, the purpose that the user opens the air-conditioning preservation box body is to put food into the accommodating space or take the food out of the accommodating space, the camera can acquire food images in the accommodating space in a mode of continuously shooting the images in the process, and food identification can be performed at intervals in the acquisition process; in addition, the camera does not need to identify food in the process, but the control system takes the last acquired image as food identification after the user closes the air-conditioning preservation box body, and updates the food category according to the identification result.
In an embodiment, referring to fig. 5, fig. 5 is a flowchart of a food preservation method according to another embodiment of the present application, and step S301 includes the following steps:
s501, responding to the opening of the air-conditioned fresh-keeping box body, and controlling the identification module to continuously acquire food images;
s502, identifying food types in the continuously acquired food images and moving tracks of food in the continuously acquired food images;
s503, setting a moving mark for the food in the food image according to the moving track, wherein the moving mark is a first mark or a second mark, the first mark indicates that the moving track corresponds to the food being put into the accommodating space, and the second mark indicates that the moving track corresponds to the food being taken out of the accommodating space;
and S504, updating the food items stored in the storage space according to the food items in the food images and the moving marks.
In the embodiment, a dynamic visual recognition technology is adopted, which is different from the static visual recognition technology, so that the recognition result of the food stored in the accommodating space can be updated in real time; the identification module of this embodiment is a camera capable of continuously shooting images, and the working mode of the camera may be that one image is shot at intervals, multiple continuous images are obtained through multiple shots, or a video is directly shot, multiple frames of images in the video form multiple continuous images, and the moving tracks of food and food in the images can be marked by comparing the continuously collected images; the camera is triggered by a signal corresponding to the action of opening the air-conditioning preservation box body, continuously shoots images, identifies food types and tracks the moving track of the food, so that the food on the hand of a user and the position of the food can be known in real time; specifically, when the modified atmosphere preservation box body is opened by a user, the control device of the refrigerator receives an electric control signal that the modified atmosphere preservation box body is opened, the identification module is controlled to continuously shoot the accommodating space, for example, the user holds an apple to open the modified atmosphere preservation box body, the image shot by the identification module at the moment contains image information of the apple, the control device identifies the apple and constructs a moving track of the apple according to the continuously shot image, the position of the apple is tracked in real time, when the apple is finally placed into the accommodating space, the position of the apple is in the pulled modified atmosphere preservation box body from the collected image, and the control device sets a first mark for the apple at the moment to show that the apple is placed into the accommodating space; similarly, when a user opens the air-conditioning preservation box body to take out food, the camera continuously shoots images in the accommodating space, if one piece of food is taken out, the control device identifies the food from the continuously shot images and constructs a moving track of the food, and finally when the food leaves the accommodating space, the control system sets a second mark for the food to indicate that the food is taken out of the accommodating space; it can be understood that, during the period that the modified atmosphere preservation box body is in the open state, the user can put food in and take food out for multiple times, and the user can also open the accommodating space for multiple times, in this case, multiple moving marks are generated, therefore, for the trigger time of updating the identification result, the control device can have two processing modes, one mode is to update the current identification result once every time one moving mark is set, so that the identification result does not need to be updated again after the modified atmosphere preservation box body is closed, the other mode is to store all the moving marks before the modified atmosphere preservation box body is closed, and the identification result is updated according to the content of the moving marks after the modified atmosphere preservation box body is closed.
In one embodiment, the food item in the food image is identified in response to the modified atmosphere cartridge being closed.
In the embodiment, based on the static visual recognition and the dynamic visual recognition, since images are shot for multiple times in the static visual recognition and the dynamic visual recognition processes, different requirements are imposed on the triggering time for recognizing food products in the processes, and if the recognition results are updated frequently, the burden of a control system is increased easily; in the embodiment, the closing signal of the modified atmosphere preservation box body is taken as the triggering moment, the triggering moment indicates that the user finishes one-time arrangement of the food in the modified atmosphere preservation box body, and when the user closes the modified atmosphere preservation box body, the control device receives the electric control signal that the modified atmosphere preservation box body is closed, so that the identification result of the food in the accommodating space is triggered and updated.
In an embodiment, referring to fig. 6, fig. 6 is a flowchart of a food preservation method according to another embodiment of the present application, and step S302 includes the following steps:
s601, acquiring preset preservation environment parameters corresponding to the food categories according to the identified food categories, wherein the preset preservation environment parameters at least comprise preset oxygen content values;
s602, adjusting the operation parameters of the controlled atmosphere generating device according to the preset fresh-keeping environment parameters;
s603, controlling the controlled atmosphere generating device to adjust the oxygen content of the accommodating space according to the operation parameters.
In this embodiment, the automatic preservation algorithm provides corresponding preservation environment parameters according to the recognition result, for example, the controlled atmosphere preservation box body obtained through image recognition contains apples and watermelons, and the automatic preservation algorithm takes the recognition result as an input parameter and outputs the optimal preservation environment parameters suitable for the apples and the watermelons, namely preset preservation environment parameters; obviously, the oxygen content is one of the important environmental factors affecting the food preservation period, so the preset preservation environment parameter in this embodiment at least includes the optimal oxygen content, i.e. the preset oxygen content, for example, the optimal oxygen content for the mixed storage of apples and watermelons is 5%, and the control device adjusts the operation mode of the modified atmosphere generating device based on the preset preservation environment parameter, so as to adjust the oxygen content of the accommodating space. It can be understood that the input parameters of the automatic fresh-keeping algorithm are not only parameters of food types, but in some embodiments, the temperature and humidity of the current accommodating space may also be used as the input parameters of the automatic fresh-keeping algorithm, and then the output parameters of the automatic fresh-keeping algorithm also include the preset fresh-keeping temperature and the preset fresh-keeping humidity, and the collected values of the temperature and the humidity may be collected by other components of the refrigerator, such as a temperature sensor and a humidity sensor. It can be understood that although the temperature sensor and the humidity sensor are usually disposed in the conventional compartment of the refrigerator, the temperature and the humidity in the modified atmosphere box may be different from those of the conventional compartment of the refrigerator to some extent, and in order to ensure the accuracy of the collected values, the temperature sensor and the humidity sensor may be disposed in the modified atmosphere box in a targeted manner, and the temperature and humidity parameters received by the automatic fresh-keeping algorithm are the collected values of the temperature sensor and the humidity sensor in the modified atmosphere box.
Because the automatic fresh-keeping algorithm outputs the environmental parameters, the control device needs to convert the environmental parameters into the operation parameters facing the controlled atmosphere generating device, and the controlled atmosphere generating device works according to the operation parameters. Generally speaking, extending the shelf life requires the oxygen content in the storage space to be at a low level, and the modified atmosphere generating device operates substantially in the oxygen removal mode, so in some cases, the modified atmosphere generating device can be selected to be a device with only oxygen removal function, simplifying the refrigerator structure and reducing the component cost.
In an embodiment, referring to fig. 7, fig. 7 is a flowchart of a food preservation method according to another embodiment of the present application, where an oxygen sensor is disposed in the accommodating space, and step S602 includes the following steps:
s701, controlling an oxygen sensor to obtain a current oxygen content value of the accommodating space;
s702, if the current oxygen content value is higher than the preset oxygen content value, adjusting the operation parameters of the controlled atmosphere generating device.
The operation parameters of the modified atmosphere generating device comprise the enabling state of the control device to the modified atmosphere generating device, if the oxygen content in the modified atmosphere preservation box body is lower than the preset oxygen content, the modified atmosphere generating device does not need to operate to remove oxygen, for example, before the modified atmosphere preservation box body is opened, apples are stored in the modified atmosphere preservation box body and the oxygen content is 5%, after the modified atmosphere preservation box body is opened, the apples are replaced by watermelons, if the preset oxygen content for preserving the watermelons is 10%, and after the modified atmosphere preservation box body is opened and closed, the internal oxygen content is lower than 10%, in this case, the control device does not control the modified atmosphere generating device to remove oxygen. It is understood that the oxygen sensor may be provided in the modified atmosphere preservation box alone or integrated into the modified atmosphere generating device.
In an embodiment, step S702 further includes changing the oxygen removal rate of the modified atmosphere generating device according to a difference between the current oxygen content value and the preset oxygen content value. In this embodiment, if the oxygen removal rate of the modified atmosphere generator is adjustable, the control device may set the oxygen removal rate of the modified atmosphere generator according to the difference between the current oxygen content and the preset oxygen content, for example, when the difference is large, the oxygen removal rate of the modified atmosphere generator is increased, so that the accommodating space quickly enters the preset fresh-keeping environment.
In an embodiment, referring to fig. 8, fig. 8 is a flowchart of a food preservation method according to another embodiment of the present application, where the refrigerator is further provided with a temperature sensor and a humidity sensor, and the food preservation method further includes:
s801, controlling a temperature sensor to acquire a current temperature value;
s802, controlling a humidity sensor to obtain a current humidity value;
and S803, adjusting the fresh-keeping environmental parameters of the accommodating space according to the current temperature value, the current humidity value and the current oxygen content value, so that the adjusted accommodating space is suitable for keeping food fresh.
In this embodiment, the current temperature value, the current humidity value and the current oxygen content value are used as input parameters of the automatic preservation algorithm, and then output parameters of the automatic preservation algorithm comprise a preset temperature value, a preset humidity value and a preset oxygen content value, and the control device controls the refrigerator to regulate and control the preservation environment in multiple angles according to the output parameters, so that the preservation effect on food is improved.
In an embodiment, referring to fig. 9, fig. 9 is a flowchart of a food preservation method according to another embodiment of the present application, where the food preservation method further includes:
s901, responding to the opening of a door body of the refrigerator or responding to the opening of the air-conditioning preservation box body, and controlling the identification module to acquire a food image;
and S900, identifying the food type of the food image and sending out a guide prompt according to the food type.
The refrigerator structurally further comprises a guide module, and the guide module can give guidance to a user in various ways, such as light prompt, voice prompt and the like; for example, the guiding module is a voice guiding module for guiding a user to store food, and the voice guiding module guides the user based on the recognition result of the recognition module, for example, tropical fruits are stored in the current modified atmosphere preservation box body, when the user holds cold fruits by hand to open the door body of the refrigerator or open the modified atmosphere preservation box body, according to the real-time recognition result of the recognition module, the control system judges that the cold fruits are not suitable for being stored in the modified atmosphere preservation box body together with the tropical fruits (the preset preservation environment parameters of the two fruits are greatly different and the preservation environment cannot be blended after being mixed), so that the voice guiding module is controlled to send out guiding voice, and the user stores the two fruits respectively. On the contrary, two fruits with the same or slightly different storage environments are preset, and through the recognition and judgment of the control system, the voice guide module can guide the user to store the two fruits in the controlled atmosphere preservation box body, so that the preservation effect of the refrigerator is improved.
It should be noted that, in the above embodiments, the food is used as a preservation object of the refrigerator, and is not limited to fruits, vegetables or meat, so that the types of the food placed in the modified atmosphere preservation box body can be different, and the modified atmosphere generating device can automatically adjust the environment in the modified atmosphere preservation box body according to the identification module. It can be understood that the preservation environments of fruits, vegetables and meat are greatly different, and in general, a single modified atmosphere preservation box body is suitable for placing only fruits, vegetables and meat foods.
The embodiment of the application provides a full-flow solution from food identification, fresh-keeping environment monitoring, automatic fresh-keeping parameter calculation and automatic fresh-keeping environment control, and a user does not need to adjust the fresh-keeping parameters according to the types of the fresh-keeping food.
Specifically, the present embodiment implements automatic control according to a visual recognition algorithm and an automatic preservation algorithm, wherein the visual recognition algorithm is mature, the visual recognition algorithm is applied to the food field with higher accuracy, and the automatic preservation algorithm can be implemented based on a deep learning algorithm, and in an embodiment, the automatic preservation algorithm can construct an algorithm framework according to the following rules:
taking fruit as an example, the fruit is roughly divided into three categories, which are defined for the convenience of description:
the order of class A includes pome fruits (apples, pears, etc.) and stone fruits (peaches, plums, etc.);
the order of class B includes multiple fruits (pineapple, raspberry, etc.);
the C category includes citrus (such as fructus Citri Tangerinae, fructus Citri Junoris, and fructus Citri Limoniae), melon and fruit (such as pulp Citrulli and fructus melo), and berry (such as fructus Myricae Rubrae and strawberry);
the optimal environmental preservation parameters for category a, category B and category C are defined as follows:
the optimal environmental preservation parameters of the category A have a temperature value of 7 ℃, a humidity value of 80% RH and an optimal oxygen content of 5%;
the optimal environmental preservation parameters of the category B have the temperature value of 8 ℃, the humidity value of 80 percent RH and the optimal oxygen content of 5 percent;
the optimal environmental preservation parameters of category C have a temperature value of 10 ℃, a humidity value of 80% RH and an optimal oxygen content of 5%;
under the condition that more than two categories are stored in the accommodating space at the same time, the optimal environmental preservation parameters are as follows:
when the A-class and the B-class are stored in a mixed mode, the temperature value is 7 ℃, the humidity value is 80% RH and the optimal oxygen content is 5% in the optimal environmental preservation parameters;
when the B category and the C category are stored in a mixed mode, the temperature value is 10 ℃, the humidity value is 80% RH and the optimal oxygen content is 5% in the optimal environmental preservation parameters;
when the A category and the C category are stored in a mixed mode, the temperature value is 8 ℃, the humidity value is 80% RH and the optimal oxygen content is 5% in the optimal environmental preservation parameters;
under the condition that three categories are stored in the accommodating space at the same time, on the basis of mixed storage of the two categories, the optimal environmental preservation parameters are set by taking the second category and the third category as references:
if the storage sequence is A category-B category-C category or A category-C category-B category, the storage sequence is set according to the mixed storage condition of the B category and the C category, namely the temperature value is 10 ℃, the humidity value is 80% RH and the optimal oxygen content is 5% in the optimal environmental preservation parameters;
if the storage sequence is B category-A category-C category or B category-C category-A category, the storage sequence is set according to the mixed storage condition of the A category and the C category, namely the temperature value is 8 ℃, the humidity value is 80% RH and the optimal oxygen content is 5% in the optimal environmental preservation parameters;
if the storage sequence is C category-A category-B category or C category-B category-A category, the storage sequence is set according to the mixed storage condition of the A category and the B category, namely the temperature value is 7 ℃, the humidity value is 80% RH and the optimal oxygen content is 5% in the optimal environmental preservation parameters.
Based on the rules, the automatic identification algorithm can automatically calculate the optimal fresh-keeping environment suitable for the current accommodating space; it will be appreciated that the above-described rule is merely illustrative of a simple rule that can be implemented, and in fact, the automatic recognition algorithm also involves a more complex calculation process, which is not described again since it is not the focus of the embodiments of the present application.
The food fresh-keeping method is implemented based on a refrigerator and referring to fig. 1, the refrigerator comprises an air-conditioning fresh-keeping box body 101, an identification module 102 and the control device 200, wherein the air-conditioning fresh-keeping box body 101 is provided with an accommodating space capable of being sealed and an air-conditioning generating device capable of adjusting the oxygen content of the accommodating space, an oxygen sensor, a temperature sensor and a humidity sensor are arranged in the accommodating space, the identification module 102 is arranged inside the refrigerator, and the identification module 102, the air-conditioning generating device, the temperature sensor and the humidity sensor are respectively in communication connection with the control device 200.
The control device 200 of the refrigerator may be an electric control system of the refrigerator, configured to control operations of components in the refrigerator, and may be connected to additional components to implement different functions.
It can be understood that the data processing process of the food preservation method executed by the control device 200 includes a control process and a calculation identification process, wherein the control process is executed by the control device 200 as in steps S301 to S302, and the calculation identification process includes operations such as image recognition and parameter calculation, which can be executed by the control device 200, that is, local calculation, or executed by a cloud server, that is, cloud calculation, in which the cloud server receives the collected information about the storage space and the environmental data of the current storage space sent by the control device 200 of the refrigerator, and can quickly identify the food category by using its own powerful calculation, calculate the environmental parameters suitable for the current preservation, and return the environmental parameters to the corresponding refrigerator, and the control system of the refrigerator controls the air-conditioning generating device to work based on the returned data, so that the operation load can be transferred to the cloud by using the cloud calculation, the operation burden of the refrigerator is reduced.
Since the refrigerator in this embodiment has the control device 200 in any of the above embodiments, the refrigerator in this embodiment has the hardware structure of the control device 200 in the above embodiments, and the control processor 201 in the control device 200 can call the control program of the refrigerator stored in the memory 202 to implement the food preservation method.
The food fresh-keeping method can also be applied to a fresh-keeping system which comprises a refrigerator and a cloud server, and referring to fig. 1, the refrigerator is provided with an air-conditioning fresh-keeping box body 101 and an identification module 102, the air-conditioning fresh-keeping box body 101 is provided with an accommodating space which can be closed and an air-conditioning generating device which can adjust the oxygen content of the accommodating space, an oxygen sensor, a temperature sensor and a humidity sensor are arranged in the accommodating space, and the identification module 102 is arranged on the inner side of the refrigerator; the cloud server is provided with the control device, and the identification module 102, the modified atmosphere generating device, the oxygen sensor, the temperature sensor and the humidity sensor are respectively in communication connection with the control device.
The cloud server in the preservation system executes the food preservation method, the refrigerator is connected to the cloud server through an internet protocol for data interaction, and if data exchange is carried out through an LUA protocol, a control instruction of the cloud server is received; in the embodiment, the cloud server is used for full-flow control, and a refrigerator manufacturer can update the technology without changing the firmware of the refrigerator, so that the upgrading and updating of technologies such as a recognition algorithm and the like are facilitated.
Furthermore, an embodiment of the present application also provides a computer-readable storage medium storing computer-executable instructions, which are executed by one or more control processors, for example, by one control processor 201 in fig. 2, and may cause the one or more control processors 201 to execute a refrigeration method of the refrigeration apparatus in the above-described method embodiment, for example, execute the above-described method steps S301 to S302 in fig. 3, method steps S401 to S403 in fig. 4, method steps S501 to S504 in fig. 5, method steps S601 to S603 in fig. 6, method steps S701 to S702 in fig. 7, method steps S801 to S803 in fig. 8, and method steps S901 to S902 in fig. 9.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope of the present invention defined by the claims.
Claims (14)
1. The food preservation method is applied to the refrigerator and is characterized in that the refrigerator is provided with an air-conditioning preservation box body and an identification module, the air-conditioning preservation box body is provided with a closed accommodating space and an air-conditioning generation device capable of adjusting the oxygen content of the accommodating space, and the food preservation method comprises the following steps:
controlling the identification module to identify the food types in the accommodating space;
and controlling the modified atmosphere generating device to adjust the oxygen content of the accommodating space according to the identified food types so as to enable the adjusted accommodating space to be suitable for keeping food fresh.
2. The food preservation method according to claim 1, wherein the controlling the identification module to identify the food item in the receiving space comprises:
controlling the identification module to acquire food images in the accommodating space in response to the opening of the modified atmosphere preservation box body;
identifying a food item class in the food item image;
and updating the food categories stored in the storage space based on the food categories.
3. The food preservation method according to claim 1, wherein the controlling the identification module to identify the food item in the receiving space comprises:
controlling the identification module to continuously acquire food images in response to the opening of the modified atmosphere preservation box body;
identifying food categories in the food images which are continuously acquired and moving tracks of food in the food images which are continuously acquired;
setting a moving mark for the food in the food image according to the moving track, wherein the moving mark is a first mark or a second mark, the first mark indicates that the moving track corresponds to the food being put into the accommodating space, and the second mark indicates that the moving track corresponds to the food being taken out of the accommodating space;
and updating the food categories stored in the accommodating space according to the food categories in the food images and the moving marks.
4. The method of claim 2 or 3, wherein the food item in the food image is identified in response to closing of the modified atmosphere package.
5. The method for preserving food according to claim 1, wherein the controlling the modified atmosphere generating device to adjust the oxygen content of the accommodating space according to the identified food product category comprises:
acquiring a preset preservation environment parameter corresponding to the food product type according to the recognized food product type, wherein the preset preservation environment parameter at least comprises a preset oxygen content value;
adjusting the operating parameters of the controlled atmosphere generating device according to the preset fresh-keeping environmental parameters;
and controlling the controlled atmosphere generating device to adjust the oxygen content of the accommodating space according to the operating parameters.
6. The food preservation method according to claim 5, wherein an oxygen sensor is disposed in the accommodating space, and the adjusting of the operating parameters of the modified atmosphere generating device according to the preset preservation environment parameters comprises:
controlling the oxygen sensor to acquire a current oxygen content value of the accommodating space;
and if the current oxygen content value is higher than the preset oxygen content value, adjusting the operating parameters of the modified atmosphere generating device.
7. The method of claim 6, wherein the adjusting the operating parameters of the modified atmosphere generator comprises:
and changing the deoxygenation rate of the modified atmosphere generation device according to the difference value between the current oxygen content value and the preset oxygen content value.
8. The method for keeping food fresh as claimed in claim 6, wherein the refrigerator is further provided with a temperature sensor and a humidity sensor, and the method for keeping food fresh further comprises:
controlling the temperature sensor to obtain a current temperature value;
controlling the humidity sensor to obtain a current humidity value;
and adjusting the fresh-keeping environmental parameters of the accommodating space according to the current temperature value, the current humidity value and the current oxygen content value, so that the adjusted accommodating space is suitable for keeping food fresh.
9. The method for preserving food according to any one of claims 1 to 8, further comprising:
responding to the opening of a door body of the refrigerator or responding to the opening of the air-conditioned preservation box body, and controlling the identification module to acquire food images;
and identifying the food category of the food image, and sending out a guidance prompt according to the food category.
10. The method for preserving food according to any one of claims 1 to 8 wherein the modified atmosphere generator regulates the oxygen content by means of an electrochemical reaction.
11. A control device comprising a control processor and a memory communicatively coupled to the control processor; the memory stores instructions executable by the control processor to enable the control processor to perform a method of preserving food as claimed in any one of claims 1 to 10.
12. A refrigerator is characterized by being provided with a modified atmosphere preservation box body, an identification module and the control device as claimed in claim 11, wherein the modified atmosphere preservation box body is provided with a containing space capable of being sealed and a modified atmosphere generation device capable of adjusting the oxygen content of the containing space, an oxygen sensor, a temperature sensor and a humidity sensor are arranged in the containing space, the identification module is arranged on the inner side of the refrigerator, and the identification module, the modified atmosphere generation device, the oxygen sensor, the temperature sensor and the humidity sensor are respectively in communication connection with the control device.
13. A preservation system is characterized by comprising a refrigerator and a cloud server, wherein the refrigerator is provided with an air-conditioning preservation box body and an identification module, the air-conditioning preservation box body is provided with an accommodating space capable of being sealed and an air-conditioning generation device capable of adjusting the oxygen content of the accommodating space, an oxygen sensor, a temperature sensor and a humidity sensor are arranged in the accommodating space, and the identification module is arranged on the inner side of the refrigerator; the cloud server is provided with the control device of claim 11, and the identification module, the modified atmosphere generation device, the oxygen sensor, the temperature sensor and the humidity sensor are respectively in communication connection with the control device.
14. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the method of preserving food as claimed in any one of claims 1 to 10.
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| CN202010211411.0A CN113446791A (en) | 2020-03-24 | 2020-03-24 | Food preservation method, control device, refrigerator and preservation system |
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| CN202010211411.0A CN113446791A (en) | 2020-03-24 | 2020-03-24 | Food preservation method, control device, refrigerator and preservation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114971933A (en) * | 2022-05-25 | 2022-08-30 | 连云港银丰食用菌科技有限公司 | Edible mushroom preservation method and system |
| WO2023169344A1 (en) * | 2022-03-10 | 2023-09-14 | 青岛海尔电冰箱有限公司 | Refrigerator and control method therefor |
-
2020
- 2020-03-24 CN CN202010211411.0A patent/CN113446791A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169344A1 (en) * | 2022-03-10 | 2023-09-14 | 青岛海尔电冰箱有限公司 | Refrigerator and control method therefor |
| CN114971933A (en) * | 2022-05-25 | 2022-08-30 | 连云港银丰食用菌科技有限公司 | Edible mushroom preservation method and system |
| CN114971933B (en) * | 2022-05-25 | 2024-01-16 | 连云港银丰食用菌科技有限公司 | Preservation method and system for edible fungi |
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