CN113357867A - Food material management method for refrigerator and refrigerator - Google Patents

Food material management method for refrigerator and refrigerator Download PDF

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Publication number
CN113357867A
CN113357867A CN202010151601.8A CN202010151601A CN113357867A CN 113357867 A CN113357867 A CN 113357867A CN 202010151601 A CN202010151601 A CN 202010151601A CN 113357867 A CN113357867 A CN 113357867A
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CN
China
Prior art keywords
food material
refrigerator
identification set
material identification
food
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010151601.8A
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Chinese (zh)
Inventor
王亚杰
陈红欣
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Hisense Shandong Refrigerator Co Ltd
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Hisense Shandong Refrigerator Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Hisense Shandong Refrigerator Co Ltd filed Critical Hisense Shandong Refrigerator Co Ltd
Priority to CN202010151601.8A priority Critical patent/CN113357867A/en
Publication of CN113357867A publication Critical patent/CN113357867A/en
Pending legal-status Critical Current

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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
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • 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
    • F25D29/005—Mounting of control devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations

Abstract

The invention discloses a refrigerator food material management method and a refrigerator, relates to the field of household appliances, and can improve the accuracy of food material management. The specific scheme is as follows: after the refrigerator detects a door closing signal of the refrigerator, detecting an RFID tag corresponding to each food material in each compartment of the refrigerator to obtain a first food material identification set; determining food materials taken out of the refrigerator and/or food materials put into the refrigerator according to a comparison result of the first food material identification set and the second food material identification set, wherein the second food material identification set is a food material identification set obtained when the refrigerator is closed last time; and determining the compartment to which the food material taken out of the refrigerator and/or the food material put into the refrigerator belongs according to the number of the door closing signals and the storage conditions of the food materials in the preset time period.

Description

Food material management method for refrigerator and refrigerator
Technical Field
The invention relates to the field of household appliances, in particular to a food material management method of a refrigerator and the refrigerator.
Background
At present, a multi-compartment refrigerator having a Radio Frequency Identification (RFID) function can intelligently manage food stored therein.
In the related art, food material management for freezing compartments of a multi-compartment refrigerator has been achieved. An antenna is arranged in the freezing chamber and connected with the RFID module. After the door of the freezing compartment is closed, the refrigerator can identify a tag attached to the food material through the antenna and acquire food material data on the tag, the food material data including an identifier indicating a kind of the food material. Thus, the refrigerator can know the food in the freezing chamber.
However, since the antenna in the freezing chamber may identify the tags of the food materials in other chambers, such as the refrigerating chamber or the temperature-changing chamber, and classify all the identified food materials into the freezing chamber, it is impossible to accurately know which food materials are included in the freezing chamber, i.e., it is impossible to accurately manage the food materials in the chambers.
Disclosure of Invention
The invention provides a refrigerator and a food material management method thereof, which can improve the accuracy of food material management of the refrigerator.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a food material management method for a refrigerator, the method comprising: after a door closing signal of the refrigerator is detected, detecting an RFID tag corresponding to each food material in each compartment of the refrigerator to obtain a first food material identification set; determining food materials taken out of the refrigerator and/or food materials put into the refrigerator according to a comparison result of the first food material identification set and the second food material identification set, wherein the second food material identification set is a food material identification set obtained when the refrigerator is closed last time; and determining the compartment to which the food material taken out of the refrigerator and/or the food material put into the refrigerator belongs according to the number of the door closing signals and the storage conditions of the food materials in the preset time period.
With reference to the first aspect, in a possible implementation manner, determining a food material taken out of the refrigerator and/or a food material put into the refrigerator according to a comparison result between the first food material identifier set and the second food material identifier set may specifically include: and if the second food material identification set is a proper subset of the first food material identification set, determining that the operation is food material placement, and the food material identification of the food material placed in the refrigerator is a third food material identification set which is an absolute complement of the second food material identification set in the first food material identification set. If the first food material identification set is a proper subset of the second food material identification set, determining that the operation is food material taking out, and the food material identification of the food material taken out from the refrigerator is a fourth food material identification set which is an absolute complement of the first food material identification set in the second food material identification set. If the first food material identification set is not the subset of the second food material identification set, determining that the operation is food material putting in and food material taking out, the food material identification of the food material taken out of the refrigerator is a fifth food material identification set, and the food material identification of the food material put in the refrigerator is a sixth food material identification set. And if the first food material identification set is the same as the second food material identification set, determining that the food materials are not picked and placed from the refrigerator.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, if the first food material identification set is not a subset of the second food material identification set, the method may specifically include: if the first food material identification set and the second food material identification set have an intersection, or if the first food material identification set and the second food material identification set do not have an intersection. When the first food material identification set and the second food material identification set have an intersection, the fifth food material identification set is contained in the second food material identification set and is not contained in the first food material identification set; the sixth food material identification set is included in the first food material identification set and is not included in the second food material identification set. When the first food material identifier set and the second food material identifier set do not intersect, the fifth food material identifier set is the second food material identifier set, and the sixth food material identifier set is the first food material identifier set.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the method further includes: adding the food material identification of the food material put into the refrigerator into a database of a corresponding compartment; and deleting the food material identification of the food material taken out of the refrigerator from the database of the corresponding compartment.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, determining a compartment to which a food material taken out of a refrigerator belongs includes: when it is determined that the food material identification of the food material taken out of the refrigerator is contained in the database of the first compartment, it is determined that the taken-out food material belongs to the first compartment.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, determining a compartment to which a food material put into a refrigerator belongs includes: if the number of the door closing signals in the preset time period is one, determining that the food material put into the refrigerator belongs to the compartment corresponding to the door closing signals; and if the number of the door closing signals in the preset time period comprises at least two, determining the compartment to which the food material put into the refrigerator belongs according to whether the at least two compartments comprise the variable-temperature compartment and the storage condition of the food material put into the refrigerator.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, determining a compartment to which a food material put into a refrigerator belongs according to whether at least two compartments include a variable temperature compartment and a storage condition of the food material put into the refrigerator includes: if the at least two compartments do not comprise the variable-temperature compartment, determining that the food material put into the refrigerator belongs to the first compartment when the storage condition of the food material put into the refrigerator is determined to meet the storage condition of the first compartment; the at least two compartments comprise a first compartment; if the at least two compartments comprise temperature-changing compartments, determining that the food materials put into the refrigerator belong to the first compartment when the storage conditions of the at least two compartments are different and the storage conditions of the food materials put into the refrigerator meet the storage conditions of the first compartment; when the storage conditions of the two compartments are determined to be the same, the compartment to which the put food belongs is determined according to the confirmation operation of the user.
In a second aspect, the present invention provides a refrigerator comprising: a detection unit and a determination unit. The detection unit is used for detecting the RFID tags corresponding to the food materials in the compartments of the refrigerator after detecting a door closing signal of the refrigerator, so as to obtain a first food material identification set. The determining unit is used for determining food materials taken out of the refrigerator and/or food materials put into the refrigerator according to a comparison result of the first food material identification set and the second food material identification set, wherein the second food material identification set is a food material identification set obtained when the refrigerator is closed last time; and determining the compartment to which the food material taken out of the refrigerator and/or the food material put into the refrigerator belongs according to the number of the door closing signals and the storage conditions of the food materials in the preset time period.
With reference to the second aspect, in a possible implementation manner, the determining unit is specifically configured to: and if the second food material identification set is a proper subset of the first food material identification set, determining that the operation is food material placement, and the food material identification of the food material placed in the refrigerator is a third food material identification set which is an absolute complement of the second food material identification set in the first food material identification set. If the first food material identification set is a proper subset of the second food material identification set, determining that the operation is food material taking out, and the food material identification of the food material taken out from the refrigerator is a fourth food material identification set which is an absolute complement of the first food material identification set in the second food material identification set. If the first food material identification set is not the subset of the second food material identification set, determining that the operation is food material putting in and food material taking out, the food material identification of the food material taken out of the refrigerator is a fifth food material identification set, and the food material identification of the food material put in the refrigerator is a sixth food material identification set. And if the first food material identification set is the same as the second food material identification set, determining that the food materials are not picked and placed from the refrigerator.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, the determining unit is specifically configured to: if the first food material identification set and the second food material identification set have an intersection, or if the first food material identification set and the second food material identification set do not have an intersection. When the first food material identification set and the second food material identification set have an intersection, the fifth food material identification set is contained in the second food material identification set and is not contained in the first food material identification set; the sixth food material identification set is included in the first food material identification set and is not included in the second food material identification set. When the first food material identifier set and the second food material identifier set do not intersect, the fifth food material identifier set is the second food material identifier set, and the sixth food material identifier set is the first food material identifier set.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, the refrigerator further includes: an adding unit and a deleting unit. And the adding unit is used for adding the food material identification of the food material put into the refrigerator into the database of the corresponding compartment. And the deleting unit is used for deleting the food material identification of the food material taken out of the refrigerator from the database of the corresponding compartment.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, the determining unit is specifically configured to: when it is determined that the food material identification of the food material taken out of the refrigerator is contained in the database of the first compartment, it is determined that the taken-out food material belongs to the first compartment.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, the determining unit is specifically configured to: if the number of the door closing signals in the preset time period is one, determining that the food material put into the refrigerator belongs to the compartment corresponding to the door closing signals; and if the number of the door closing signals in the preset time period comprises at least two, determining the compartment to which the food material put into the refrigerator belongs according to whether the at least two compartments comprise the variable-temperature compartment and the storage condition of the food material put into the refrigerator.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, the determining unit is specifically configured to: if the at least two compartments do not comprise the variable-temperature compartment, determining that the food material put into the refrigerator belongs to the first compartment when the storage condition of the food material put into the refrigerator is determined to meet the storage condition of the first compartment; the at least two compartments comprise a first compartment; if the at least two compartments comprise temperature-changing compartments, determining that the food materials put into the refrigerator belong to the first compartment when the storage conditions of the at least two compartments are different and the storage conditions of the food materials put into the refrigerator meet the storage conditions of the first compartment; when the storage conditions of the two compartments are determined to be the same, the compartment to which the put food belongs is determined according to the confirmation operation of the user.
In a third aspect, the present invention provides a food material management method for a refrigerator, the method comprising: after a door closing signal of the refrigerator is detected, an RFID label corresponding to each food material in each compartment of the refrigerator is detected, and the label comprises compartment data information of the food materials. And the refrigerator determines the compartment to which the food material belongs according to the compartment data information included in the label corresponding to the food material. And the labels corresponding to different food materials in the same compartment comprise the same compartment data information.
In a fourth aspect, the present invention provides a refrigerator comprising: a detection unit and a determination unit. The detection unit is used for detecting an RFID tag corresponding to each food material in each compartment of the refrigerator after detecting a door closing signal of the refrigerator, and the tag comprises compartment data information of the food material. And the determining unit is used for determining the compartment to which the food material belongs according to the compartment data information included in the label corresponding to the food material.
In a fifth aspect, the present invention provides a refrigerator, comprising: a processor and a memory. The memory is used for storing computer-executable instructions, and when the refrigerator runs, the processor executes the computer-executable instructions stored by the memory, so as to enable the refrigerator to execute the food material management method of the refrigerator as the first aspect or any one of the possible implementation manners of the first aspect, or enable the refrigerator to execute the food material management method of the refrigerator as the third aspect.
In a sixth aspect, the present invention provides a computer-readable storage medium having stored thereon computer-executable instructions that, when executed on a refrigerator, cause the refrigerator to perform the method for food management of the refrigerator as in the first aspect or any one of the possible implementations of the first aspect, or the method for food management of the refrigerator as in the third aspect.
According to the food material management method for the refrigerator, after the refrigerator detects a door closing signal, the RFID tag corresponding to each food material in each compartment of the refrigerator is detected, a first food material identification set is obtained, food materials taken out of the refrigerator and/or food materials put into the refrigerator are determined according to the comparison result of the first food material identification set and the food material identification set obtained when the refrigerator is closed last time, namely a second food material identification set, and finally the compartment to which the food materials taken out of the refrigerator and/or the food materials put into the refrigerator belong is determined according to the number of the door closing signals and the storage conditions of the food materials in a preset time period. Therefore, compared with the prior art that the food materials are managed only by means of antenna identification, the method and the device can determine the compartment to which each stored food material belongs, and improve the accuracy of food material management.
Drawings
Fig. 1 is a schematic composition diagram of a refrigerator according to an embodiment of the present invention;
fig. 2 is a flowchart of a food material management method for a refrigerator according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another refrigerator according to an embodiment of the present invention;
fig. 4 is a schematic composition diagram of another refrigerator according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to improve the accuracy of food material management of a refrigerator, the embodiment of the invention provides a food material management method of a refrigerator. The method may be applied in a refrigerator comprising at least two compartments.
Fig. 1 is a schematic composition diagram of a refrigerator according to an embodiment of the present invention. As shown in fig. 1, the refrigerator may include: at least one processor 11, a memory 12, a communication interface 13, and a communication bus 14.
The processor 11 is a control board of the refrigerator, and may be a Central Processing Unit (CPU), a micro-processing unit, or one or more integrated circuits for controlling the execution of the program of the implementation routine of the present invention.
In particular implementations, processor 11 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 1, for example, as one embodiment. Also, as an example, the refrigerator may include a plurality of processors, such as the processor 11 and the processor 15 shown in fig. 1. Each of these processors may be a Single-core processor (Single-CPU) or a Multi-core processor (Multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
In some embodiments, processor 11 may be an RFID processing module. And the RFID processing module is used for controlling the RFID detection module arranged in the refrigerator to emit wireless signals, detecting the RFID labels corresponding to each food material in each compartment of the refrigerator, and receiving the RFID label signals fed back by the RFID detection module. The RFID detection module may be an antenna.
In a specific implementation, the RFID processing module is connected with at least one RFID detection module to identify RFID tags of all food materials included in the refrigerator. For example, the RFID processing module may be connected to an RFID detection module, the RFID detection module is located in a certain compartment, and the power of the RFID detection module is large enough to identify the RFID tags of all food materials included in the refrigerator. For another example, the RFID processing module may be connected to N RFID detection modules, and one RFID detection module is located in one compartment. The number of the RFID detection modules connected with the RFID processing module is not limited, and the RFID processing module can identify the RFID tags of all food materials in the refrigerator.
The memory 12 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 12 may be self-contained and coupled to the processor 11 via a communication bus 14. The memory 12 may also be integrated with the processor 11.
In a specific implementation, the memory 12 is used for storing data in the present invention and software programs for executing the present invention. The processor 11 may perform various functions of the refrigerator by running or executing software programs stored in the memory 12 and calling data stored in the memory 12.
The communication interface 13 is any device, such as a transceiver, for communicating with other devices or communication networks, such as a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), and the like. The communication interface 13 may include a receiving unit implementing a receiving function and a transmitting unit implementing a transmitting function.
The communication bus 14 may include a path to transfer information between the aforementioned components.
Fig. 2 is a flowchart of a food material management method for a refrigerator according to an embodiment of the present invention, and as shown in fig. 2, the method may include:
201. after a door closing signal of the refrigerator is detected, the RFID tag corresponding to each food material in each compartment of the refrigerator is detected, and a first food material identification set is obtained.
When a door closing signal of the refrigerator is detected and it is determined that the doors of all the compartments are closed, the RFID processing module may control the RFID detection module arranged in the refrigerator to detect the RFID tag corresponding to each food material in each compartment, so as to obtain the first food material identifier set.
In a specific implementation, after detecting a door closing signal of the refrigerator, the RFID processing module instructs the RFID detection module connected thereto to identify an RFID tag corresponding to each food material included in each compartment, so as to obtain a food material identifier of each food material. The tag includes a food material identification, such as an Electronic Product Code (EPC), that uniquely identifies the food material. After the RFID detection module detects the food material identifier of the food material, the food material identifier can be sent to the RFID processing module. The RFID processing module may duplicate all the received food material identifiers to obtain a first food material identifier set, and store the first food material identifier set for subsequent use.
Optionally, in the embodiment of the present invention, the door closing signal of the refrigerator is detected, specifically, the door closing signal may be detected by detecting a magnetic sensitive switch, a mechanical switch, and the like of the compartment, which is not limited herein.
202. And determining the food materials taken out of the refrigerator and/or the food materials put into the refrigerator according to the comparison result of the first food material identification set and the second food material identification set.
After obtaining the first food material identifier set, the RFID processing module may compare the first food material identifier set with a food material identifier set, that is, a second food material identifier set, obtained when the refrigerator was last closed. And determining the food material taken out of the refrigerator and/or the food material put into the refrigerator according to the comparison result.
Specifically, if the second food material identifier set is a proper subset of the first food material identifier set, that is, the first food material identifier set includes the second food material identifier set, and the two sets are different, it is determined that the operation is to place food material, and the food material identifiers of the food material placed in the refrigerator are a third food material identifier set, where the third food material identifier set is an absolute complement of the second food material identifier set in the first food material identifier set. If the first food material identification set is a proper subset of the second food material identification set, that is, the second food material identification set contains the first food material identification set, and the two sets are different, it is determined that the operation is to take out food material, and the food material identification of the food material taken out of the refrigerator is a fourth food material identification set, which is an absolute complement of the first food material identification set in the second food material identification set. And if the first food material identification set is the same as the second food material identification set, the refrigerator determines that the food materials are not taken or placed from the refrigerator. If the first set of food material identifications is not a subset of the second set of food material identifications, two situations are included: the first food material identification set and the second food material identification set have an intersection, or the first food material identification set and the second food material identification set do not have an intersection, it is determined that the food material is put in and taken out in the operation, the food material identification of the food material taken out of the refrigerator is a fifth food material identification set, and the food material identification of the food material put in the refrigerator is a sixth food material identification set.
Under the condition that the first food material identification set and the second food material identification set have intersection, the fifth food material identification set is contained in the second food material identification set and is not contained in the first food material identification set; the sixth set of food material identifiers is included in the first set of food material identifiers and is not included in the second set of food material identifiers. And under the condition that the first food material identification set and the second food material identification set are not intersected, the fifth food material identification set is the second food material identification set, and the sixth food material identification set is the first food material identification set.
For example, assuming that the first set of food material identifiers is { a, B, C, D }, and the second set of food material identifiers is { a, B, C }, the refrigerator may determine that the third set of food material identifiers of the food materials put into the refrigerator is { D } when { a, B, C } is determined to be a proper subset of { a, B, C, D }.
For another example, assuming that the first set of food material identifiers is { a, B, C }, and the second set of food material identifiers is { a, B, C, D }, the refrigerator may determine that the fourth set of food material identifiers of the food materials taken out of the refrigerator is { D } when { a, B, C } is determined to be a proper subset of { a, B, C, D }.
For another example, assuming that the first food material identifier set is { a, B, C }, and the second food material identifier set is { a, B, D }, the refrigerator may determine that a fifth food material identifier set of the food material taken out of the refrigerator is { D }, and a sixth food material identifier set of the food material put into the refrigerator is { C }, when it is determined that the { a, B, C } and the { a, B, D } have an intersection.
For another example, assuming that the first food material identifier set is { a, B, C }, and the second food material identifier set is { D }, the refrigerator may determine that the fifth food material identifier set of the food material taken out of the refrigerator is { D }, and the sixth food material identifier set of the food material put into the refrigerator is { a, B, C }, when it is determined that { a, B, C } and { D } are not intersected.
203. And determining the compartment to which the food material taken out of the refrigerator and/or the food material put into the refrigerator belongs according to the number of the door closing signals and the storage conditions of the food materials in the preset time period.
Optionally, for any food material taken out of the refrigerator, the refrigerator may determine that the food material belongs to the first compartment when determining that the food material identifier of the food material is contained in the database of the first compartment. The database of the chamber is used for storing the food material information of the chamber.
It can be understood that after the refrigerator determines the compartment to which the food material taken out of the refrigerator belongs, the food material identifier of the food material taken out of the refrigerator can be deleted from the database of the corresponding compartment, so as to facilitate the automatic management of the food material of the compartment.
For example, assuming that the fourth set of food material identifiers of the food material retrieved from the refrigerator is determined to be { D }, the refrigerator may determine that the food material corresponding to D belongs to the refrigerating compartment when it is determined that the food material identifier D is contained in the database of the refrigerating compartment.
Optionally, after the compartment to which the food material put into the refrigerator belongs is determined, the refrigerator may add the food material identifier of the food material put into the refrigerator to the database of the corresponding compartment.
Optionally, the specific process of determining the compartment to which the food material put into the refrigerator belongs by the RFID processing module is as follows:
for any food material put in the refrigerator, if the number of the detected door closing signals in the preset time period is only one, such as only the door closing signal of the target compartment is detected, the food material can be determined to belong to the target compartment.
And if the number of the door closing signals in the preset time period comprises at least two, determining the compartment to which the put food belongs according to whether the at least two compartments comprise the variable temperature compartment and the storage condition of the food put into the refrigerator. Specifically, if the at least two compartments do not include the temperature-changing compartment, the RFID processing module may determine that the food material belongs to the first compartment when determining that the storage condition of the food material put into the refrigerator meets the storage condition of the first compartment (that is, the storage temperature of the food material is within the temperature range of the first compartment), and the at least two compartments include the first compartment. In a specific implementation, a cold-storage food material database and a frozen food material database can be pre-stored in a refrigerator according to the storage habits of users and the storage conditions of food materials, and each database comprises a plurality of food materials. Thus, for any food material placed in the refrigerator, the refrigerator can determine that the food material belongs to the refrigeration compartment when determining that the food material is contained in the refrigerated food material database. Alternatively, the refrigerator may determine that the food material belongs to the freezing compartment when it is determined that the food material is contained in the freezing food material database.
If the at least two compartments include the temperature-changing compartment, the refrigerator may determine that the food material placed into the refrigerator belongs to the first compartment when it is determined that the storage conditions of the at least two compartments are different from each other and the storage conditions of the food material placed into the refrigerator meet the storage conditions of the first compartment, and the specific implementation manner is not described again. Alternatively, when it is determined that the storage conditions of the two compartments are the same, the compartment to which the inserted food belongs may be determined according to a confirmation operation by the user. In a specific implementation, for any food material put into a refrigerator, assuming that the refrigerator detects a door closing signal of three compartments of cold storage, freezing and temperature changing, when the refrigerator determines that the food material is contained in a certain food material database, for example, in a case of the food material database contained in the cold storage, if two compartments with the same storage conditions are determined to be freezing compartments (that is, the refrigerator includes one freezing compartment, and the temperature changing compartment currently operates in a freezing mode), the refrigerator may determine that the food material belongs to the cold storage compartment. If it is determined that two existing compartments with the same storage conditions are cold storage compartments (that is, the refrigerator includes one cold storage compartment, and the temperature-changing compartment currently operates in a cold storage mode), the refrigerator may determine whether the food material belongs to the cold storage compartment or the temperature-changing compartment according to a confirmation operation of a user, for example, through a voice interaction manner.
It can be understood that the refrigerator may determine the operation mode of the temperature-changing compartment according to the temperature fed back by the indoor temperature sensor in the temperature-changing compartment, or according to the mode of obtaining the operation mode set by the temperature-changing compartment from the main control board.
For example, assuming that the third food material identifier set of the food material put into the refrigerator is determined to be { D }, the refrigerator may determine that the food material corresponding to D belongs to the refrigerating chamber when only the door closing signal of the refrigerating chamber is detected within the predetermined time period.
For another example, assuming that the third food material identifier set of the food materials put into the refrigerator is determined to be { D }, when the refrigerator detects a door closing signal of two compartments (such as a refrigerating compartment and a freezing compartment) within a predetermined time period and the two compartments do not include a temperature-changing compartment, it is determined that the food material corresponding to D belongs to the refrigerating compartment according to the fact that the food material corresponding to D is included in the cold meal food material database.
For another example, if it is determined that the third food material identifier set of the food materials put into the refrigerator is { D }, the refrigerator may detect a door closing signal of two compartments (e.g., a temperature changing compartment and a refrigerating compartment) within a predetermined time period, and when the two compartments include the temperature changing compartment, if the operation mode of the temperature changing compartment is a freezing mode and the food material corresponding to D is contained in the refrigerating food material database, it is determined that the food material corresponding to D belongs to the refrigerating compartment. If the operation mode of the variable-temperature chamber is a refrigerating mode and the food material corresponding to the D is contained in the refrigerating food material database, the refrigerator can determine whether the food material corresponding to the D belongs to the refrigerating chamber or the variable-temperature chamber according to the voice input of the user.
According to the food material management method for the refrigerator, after the refrigerator detects a door closing signal, the RFID tag corresponding to each food material in each compartment of the refrigerator is detected, a first food material identification set is obtained, food materials taken out of the refrigerator and/or food materials put into the refrigerator are determined according to the comparison result of the first food material identification set and the food material identification set obtained when the refrigerator is closed last time, namely a second food material identification set, and finally the compartment to which the food materials taken out of the refrigerator and/or the food materials put into the refrigerator belong is determined according to the number of the door closing signals and the storage conditions of the food materials in a preset time period. Therefore, compared with the prior art that the food materials are managed only by means of antenna identification, the method and the device can determine the compartment to which each stored food material belongs, and improve the accuracy of food material management.
The embodiment of the invention provides another food material management method for a refrigerator, which is characterized in that after a door closing signal of the refrigerator is detected, an RFID tag corresponding to each food material in each compartment of the refrigerator is detected, and the tag comprises compartment data information of the food material. And the refrigerator determines the compartment to which the food material belongs according to the compartment data information included in the label corresponding to the food material. The labels corresponding to different food materials in the same compartment comprise the same compartment data information, and the labels corresponding to different food materials in the same compartment comprise different EPCs.
Therefore, the refrigerator can identify the compartment to which the food material belongs by identifying the compartment data information included in the label corresponding to the food material, so that the automatic management of the refrigerator food material is realized.
The scheme provided by the embodiment of the invention is mainly introduced from the perspective of the refrigerator. It is understood that the refrigerator includes corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above-described functions. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, in conjunction with the exemplary algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The embodiment of the present invention may perform the division of the functional modules for the refrigerator according to the above method, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In the case of dividing each function module by corresponding functions, fig. 3 shows another possible composition diagram of the refrigerator related to the above embodiment, as shown in fig. 3, the refrigerator may include: a detection unit 31 and a determination unit 32.
Wherein, the detecting unit 31 is configured to support the refrigerator to perform step 201 in the food material management method of the refrigerator shown in fig. 2.
A determining unit 32, configured to support the refrigerator to perform steps 202 and 203 of the food material management method of the refrigerator shown in fig. 2.
Further, as shown in fig. 4, the refrigerator may further include: an adding unit 33 and a deleting unit 34.
Wherein, the adding unit 33 is configured to support the refrigerator to perform the food material identification of the food material put into the refrigerator in the food material management method of the refrigerator shown in fig. 2.
A deleting unit 34, configured to support the refrigerator to execute the method for managing food materials of the refrigerator shown in fig. 2, so as to delete the food material identifier of the food material taken out of the refrigerator from the database of the corresponding compartment.
It should be noted that all relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.
The refrigerator provided by the embodiment of the invention is used for executing the food material management method of the refrigerator, so that the same effect as the food material management method of the refrigerator can be achieved.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, that is, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solution of the embodiments of the present invention may be essentially or partially contributed to by the prior art, or all or part of the technical solution may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions within the technical scope of the present invention are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (14)

1. A food material management method of a refrigerator, characterized in that the method comprises:
after a door closing signal of the refrigerator is detected, detecting a Radio Frequency Identification (RFID) tag corresponding to each food material in each compartment of the refrigerator to obtain a first food material identification set;
determining food materials taken out of the refrigerator and/or food materials put into the refrigerator according to a comparison result of the first food material identification set and a second food material identification set, wherein the second food material identification set is a food material identification set obtained when the refrigerator is closed last time;
and determining the food materials taken out of the refrigerator and/or the chambers to which the food materials put into the refrigerator belong according to the number of the door closing signals and the storage conditions of the food materials in a preset time period.
2. The food material management method for the refrigerator as recited in claim 1, wherein the determining of the food material taken out of the refrigerator and/or the food material put into the refrigerator according to the comparison result of the first food material identification set and the second food material identification set comprises:
if the second food material identification set is a proper subset of the first food material identification set, determining that the operation is to put in food material, and the food material identification of the food material put in the refrigerator is a third food material identification set which is an absolute complement of the second food material identification set in the first food material identification set;
if the first food material identification set is a proper subset of the second food material identification set, determining that the operation is food material taking out, and the food material identification of the food material taken out from the refrigerator is a fourth food material identification set which is an absolute complement of the first food material identification set in the second food material identification set;
if the first food material identification set is not the subset of the second food material identification set, determining that the operation is food material input and food material output, the food material identification of the food material output from the refrigerator is a fifth food material identification set, and the food material identification of the food material input into the refrigerator is a sixth food material identification set;
and if the first food material identification set is the same as the second food material identification set, determining that food materials are not picked and placed from the refrigerator.
3. The food material management method for the refrigerator of claim 2, wherein if the first set of food material identifications is not a subset of the second set of food material identifications, comprising:
if the first food material identification set and the second food material identification set have an intersection, or if the first food material identification set and the second food material identification set have no intersection;
when the first food material identifier set and the second food material identifier set intersect with each other, the fifth food material identifier set is included in the second food material identifier set and is not included in the first food material identifier set; the sixth set of food material identifiers is included in the first set of food material identifiers and is not included in the second set of food material identifiers; when the first food material identification set and the second food material identification set do not intersect with each other, the fifth food material identification set is the second food material identification set, and the sixth food material identification set is the first food material identification set.
4. The food material management method for a refrigerator of any one of claims 1-3, wherein the method further comprises:
adding the food material identification of the food material put into the refrigerator into a database of a corresponding compartment;
and deleting the food material identification of the food material taken out of the refrigerator from the database of the corresponding compartment.
5. The food material management method for the refrigerator according to any one of claims 1 to 3, wherein the determining of the compartment to which the food material taken out of the refrigerator belongs comprises:
and when the food material identification of the food material taken out of the refrigerator is determined to be contained in the database of the first chamber, determining that the taken-out food material belongs to the first chamber.
6. The food material management method for the refrigerator according to any one of claims 1 to 3, wherein the determining of the compartment to which the food material put into the refrigerator belongs comprises:
if the number of the door closing signals in the preset time period is one, determining that the food material put into the refrigerator belongs to the compartment corresponding to the door closing signal;
and if the number of the door closing signals in the preset time period comprises at least two, determining the compartment to which the food material put into the refrigerator belongs according to whether the at least two compartments comprise temperature-changing compartments and the storage condition of the food material put into the refrigerator.
7. The food material management method for the refrigerator as claimed in claim 6, wherein the determining of the compartment to which the food material put into the refrigerator belongs according to whether the at least two compartments include a temperature-changing compartment and a preservation condition of the food material put into the refrigerator comprises:
if the temperature-changing chamber is not included in the at least two chambers, determining that the food material put into the refrigerator belongs to a first chamber when the storage condition of the food material put into the refrigerator is determined to meet the storage condition of the first chamber; the at least two compartments comprise the first compartment;
if the at least two compartments comprise the temperature-changing compartment, determining that the food materials put into the refrigerator belong to the first compartment when the storage conditions of the at least two compartments are different and the storage conditions of the food materials put into the refrigerator meet the storage conditions of the first compartment; when the storage conditions of the two compartments are determined to be the same, the compartment to which the put food belongs is determined according to the confirmation operation of the user.
8. A refrigerator, characterized in that the refrigerator comprises: a detection unit and a determination unit;
the detection unit is used for detecting the RFID tag corresponding to each food material in each compartment of the refrigerator after detecting a door closing signal of the refrigerator, so as to obtain a first food material identification set;
the determining unit is configured to determine food materials taken out of the refrigerator and/or food materials put into the refrigerator according to a comparison result between the first food material identifier set and a second food material identifier set, where the second food material identifier set is a food material identifier set obtained when the refrigerator is last closed; and determining the food materials taken out of the refrigerator and/or the chambers to which the food materials put into the refrigerator belong according to the number of the door closing signals and the storage conditions of the food materials in a preset time period.
9. The refrigerator according to claim 8, wherein the determining unit is specifically configured to:
if the second food material identification set is a proper subset of the first food material identification set, determining that the operation is to put in food material, and the food material identification of the food material put in the refrigerator is a third food material identification set which is an absolute complement of the second food material identification set in the first food material identification set;
if the first food material identification set is a proper subset of the second food material identification set, determining that the operation is food material taking out, and the food material identification of the food material taken out from the refrigerator is a fourth food material identification set which is an absolute complement of the first food material identification set in the second food material identification set;
if the first food material identification set is not the subset of the second food material identification set, determining that the operation is food material input and food material output, the food material identification of the food material output from the refrigerator is a fifth food material identification set, and the food material identification of the food material input into the refrigerator is a sixth food material identification set;
and if the first food material identification set is the same as the second food material identification set, determining that food materials are not picked and placed from the refrigerator.
10. The refrigerator according to claim 9, characterized in that the determination unit is specifically configured to:
if the first food material identification set and the second food material identification set have an intersection, or if the first food material identification set and the second food material identification set have no intersection;
when the first food material identifier set and the second food material identifier set intersect with each other, the fifth food material identifier set is included in the second food material identifier set and is not included in the first food material identifier set; the sixth set of food material identifiers is included in the first set of food material identifiers and is not included in the second set of food material identifiers; when the first food material identification set and the second food material identification set do not intersect with each other, the fifth food material identification set is the second food material identification set, and the sixth food material identification set is the first food material identification set.
11. The refrigerator according to any one of claims 8 to 10, further comprising: an adding unit and a deleting unit;
the adding unit is used for adding the food material identification of the food material put into the refrigerator into the database of the corresponding compartment;
and the deleting unit is used for deleting the food material identification of the food material taken out of the refrigerator from the database of the corresponding compartment.
12. The refrigerator according to any of claims 8 to 10, characterized in that the determination unit is specifically configured to:
and when the food material identification of the food material taken out of the refrigerator is determined to be contained in the database of the first chamber, determining that the taken-out food material belongs to the first chamber.
13. The refrigerator according to any of claims 8 to 10, characterized in that the determination unit is specifically configured to:
if the number of the door closing signals in the preset time period is one, determining that the food material put into the refrigerator belongs to the compartment corresponding to the door closing signal;
and if the number of the door closing signals in the preset time period comprises at least two, determining the compartment to which the food material put into the refrigerator belongs according to whether the at least two compartments comprise temperature-changing compartments and the storage condition of the food material put into the refrigerator.
14. The refrigerator according to claim 13, wherein the determining unit is specifically configured to:
if the temperature-changing chamber is not included in the at least two chambers, determining that the food material put into the refrigerator belongs to a first chamber when the storage condition of the food material put into the refrigerator is determined to meet the storage condition of the first chamber; the at least two compartments comprise the first compartment;
if the at least two compartments comprise the temperature-changing compartment, determining that the food materials put into the refrigerator belong to the first compartment when the storage conditions of the at least two compartments are different and the storage conditions of the food materials put into the refrigerator meet the storage conditions of the first compartment; when the storage conditions of the two compartments are determined to be the same, the compartment to which the put food belongs is determined according to the confirmation operation of the user.
CN202010151601.8A 2020-03-06 2020-03-06 Food material management method for refrigerator and refrigerator Pending CN113357867A (en)

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Application Number Priority Date Filing Date Title
CN202010151601.8A CN113357867A (en) 2020-03-06 2020-03-06 Food material management method for refrigerator and refrigerator

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JP2001317862A (en) * 2000-02-28 2001-11-16 Dainippon Printing Co Ltd Automatic refrigerating system for food and refrigerator
KR100837050B1 (en) * 2007-04-02 2008-06-12 주식회사 대우일렉트로닉스 Refrigerator with in rfid system
CN107862354A (en) * 2017-10-19 2018-03-30 合肥美的智能科技有限公司 Refrigerator and its food materials management system and method
CN108507270A (en) * 2017-02-24 2018-09-07 九阳股份有限公司 A kind of food materials of refrigerator determine method and food materials determining device
US20200003482A1 (en) * 2019-06-28 2020-01-02 Lg Electronics Inc. Refrigerator and method for operating the refrigerator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001317862A (en) * 2000-02-28 2001-11-16 Dainippon Printing Co Ltd Automatic refrigerating system for food and refrigerator
KR100837050B1 (en) * 2007-04-02 2008-06-12 주식회사 대우일렉트로닉스 Refrigerator with in rfid system
CN108507270A (en) * 2017-02-24 2018-09-07 九阳股份有限公司 A kind of food materials of refrigerator determine method and food materials determining device
CN107862354A (en) * 2017-10-19 2018-03-30 合肥美的智能科技有限公司 Refrigerator and its food materials management system and method
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Application publication date: 20210907