CN113915949A - Refrigerator and control method thereof - Google Patents
Refrigerator and control method thereof Download PDFInfo
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- CN113915949A CN113915949A CN202111219490.0A CN202111219490A CN113915949A CN 113915949 A CN113915949 A CN 113915949A CN 202111219490 A CN202111219490 A CN 202111219490A CN 113915949 A CN113915949 A CN 113915949A
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- module
- food material
- identification result
- refrigerator
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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
- F25D29/005—Mounting of control 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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
Abstract
The invention discloses a refrigerator and a control method thereof, wherein the refrigerator comprises: a box body; each label comprises a trigger module, a control module and a display screen; the control module is used for sending a pairing request to the controller when detecting that the trigger module meets the trigger condition; the voice recognition module is used for collecting voice information input by a user and sending the voice information to the controller; a controller configured to: in response to receiving the pairing request, pairing with a target tag sending the pairing request according to the pairing request; when the food material recording condition is determined to be met, controlling a voice recognition module to start; responding to the received voice information input by the user, identifying food material information in the voice information, and obtaining an identification result; sending the identification result to a control module of the target label, so that the control module of the target label controls a display screen to display the identification result; and managing the food materials according to the identification result. By adopting the embodiment of the invention, the flexibility and comprehensiveness of food material management can be effectively improved.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator and a control method of the refrigerator.
Background
In the family life, the refrigerator becomes one of the essential household appliances of each family, and the food material management function of the refrigerator is one of the requirements of users on the functions of the refrigerator. Currently, food material management is generally implemented by creating RFID (Radio Frequency Identification) tags or NFC (Near Field Communication) tags corresponding to different food material information, setting the tags on food materials, reading information of the tags put in the food materials by a reader/writer installed in a refrigerator, and processing the information. The inventor finds that the following technical problems exist in the prior art in the process of implementing the invention: since one tag is set to correspond to one food in advance, the tag is poor in flexibility of use, so that flexibility of food management is low, and manageable food types are limited by the number of tags, so that expansion of the food types cannot be realized under the condition that the number of tags is limited, and therefore comprehensiveness of food management is low.
Disclosure of Invention
The embodiment of the invention provides a refrigerator and a control method of the refrigerator, which can effectively improve the flexibility and comprehensiveness of food material management.
In a first aspect, an embodiment of the present invention provides a refrigerator, including:
a box body;
the food material processing device comprises a plurality of labels arranged on food materials, wherein each label comprises a trigger module, a control module and a display screen; the control module is used for sending a pairing request to the controller when detecting that the trigger module meets a trigger condition;
the voice recognition module is used for collecting voice information input by a user and sending the voice information to the controller;
the controller configured to:
in response to receiving the pairing request, pairing with a target tag sending the pairing request according to the pairing request;
when the food material recording condition is determined to be met, controlling the voice recognition module to start; wherein the food material input condition at least comprises successful matching with the target label;
responding to received voice information input by a user, identifying food material information in the voice information, and obtaining an identification result;
sending the identification result to a control module of the target label, so that the control module of the target label controls the display screen to display the identification result;
and managing the food materials according to the identification result.
As a modification of the above, the controller includes a first bluetooth communication unit; the control module comprises a second Bluetooth communication unit;
the pairing request comprises verification information of the target tag;
wherein, in response to receiving the pairing request, pairing with a target tag that sent the pairing request according to the pairing request includes:
in response to receiving the pairing request, verifying whether a target tag sending the pairing request meets a pairing condition according to verification information in the pairing request;
if yes, establishing pairing connection between the first Bluetooth communication unit and a second Bluetooth communication unit of the target tag;
if not, the pairing is judged to be failed.
As an improvement of the above, the controller is further configured to:
and when the pairing is failed, transmitting pairing failure information to the control module of the target label, so that the control module of the target label controls the display screen of the target label to display information for indicating the user to resend the pairing request.
As an improvement of the above scheme, the trigger module comprises a key;
the trigger condition includes occurrence of a first press event on the key.
As an improvement of the above scheme, the control module is further configured to send an entry start signal to the controller when detecting that a second press event occurs on the key;
the food material input condition further comprises receiving the input starting signal.
As an improvement of the above scheme, the triggering module includes a first NFC module;
the refrigerator further comprises an NFC tag storage device; the NFC tag storage device comprises a box body and a second NFC module arranged on the box body; a plurality of said labels being received within said cartridge when not in use;
the second NFC module is used for establishing NFC connection with the first NFC module of each tag in the box body;
the trigger condition includes that the first NFC module is disconnected from the NFC connection of the second NFC module.
As an improvement of the above scheme, the control module is further configured to control the tag to enter a sleep state after controlling the display screen to display the identification result.
As an improvement of the above scheme, the refrigerator further comprises a prompt module;
after the identifying of the food material information in the voice information in response to receiving the voice information input by the user is finished, the controller is further configured to:
judging whether the identification result contains food material information or not;
if so, controlling the voice recognition module to stop running and executing the next step;
and if not, controlling the prompt module to send prompt information for instructing the user to input the food materials again by voice, and returning the response to the received voice information input by the user, identifying the food material information in the voice information, and obtaining an identification result.
As an improvement of the above scheme, the food material management according to the recognition result specifically includes:
and uploading the identification result to a server, so that the server stores the identification result in a preset food material management database.
In a second aspect, an embodiment of the present invention provides a control method for a refrigerator, which is applied to the refrigerator in any one of the first aspects, and includes:
the controller responds to a pairing request sent by any one tag, and is paired with a target tag sending the pairing request according to the pairing request;
the controller controls the voice recognition module to start when determining that the food material input condition is met; wherein the food material input condition at least comprises successful matching with the target label;
the controller responds to the received voice information input by the user, identifies the food material information in the voice information and obtains an identification result;
the controller sends the identification result to a control module of the target label, so that the control module of the target label controls the display screen to display the identification result;
and the controller manages the food materials according to the identification result.
Compared with the prior art, the refrigerator and the control method of the refrigerator provided by the embodiment of the invention have the advantages that the trigger module, the control module and the display screen are arranged on the tag, when the control module detects that the trigger module meets the trigger condition, the control module pairs the tag and the controller, after the pairing is successful, the controller controls the voice recognition module to start so as to collect voice information input by a user and recognize the voice information, after the recognition result is obtained, the recognition result is displayed on the display screen of the tag so as to be consulted by the user, and the food material management is carried out according to the recognition result, so that the food material corresponding to the tag can be set according to the voice indication of the user, the use flexibility of the tag is improved, the flexibility of the food material management is improved, the manageable types of the food material are not limited by the number of the tag, and the types of the food material are rich, the comprehensiveness of food material management is improved.
Drawings
Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a tag provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another refrigerator according to an embodiment of the present invention;
FIGS. 4a and 4b are schematic structural diagrams of another tag provided by an embodiment of the present invention;
FIGS. 5a and 5b are schematic structural views of a tag according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a refrigerator according to another embodiment of the present invention;
fig. 7 is a flowchart illustrating a control method of a 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.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a label according to an embodiment of the present invention.
The embodiment provides a refrigerator, including:
a case 10;
the food tag comprises a plurality of tags 20 arranged on food materials, wherein each tag 20 comprises a trigger module 21, a control module 22 and a display screen 23; the control module 22 is configured to send a pairing request to the controller 40 when detecting that the triggering module 21 satisfies a triggering condition;
the voice recognition module 30 is configured to collect voice information input by a user and send the voice information to the controller 40;
the controller 40 configured to:
s101, responding to the received pairing request, and pairing with the target tag 20 sending the pairing request according to the pairing request;
s102, when the food material recording condition is determined to be met, controlling the voice recognition module 30 to start; wherein the food material entry condition at least comprises successful pairing with the target tag 20;
s103, responding to the received voice information input by the user, identifying the food material information in the voice information to obtain an identification result;
s104, sending the identification result to the control module 22 of the target tag 20, so that the control module 22 of the target tag 20 controls the display screen 23 to display the identification result;
and S105, managing the food materials according to the identification result.
Illustratively, referring to fig. 2, a battery 24 and a power processing unit 25 are disposed in the tag 20, wherein the battery 24 may be a CR2032 button battery, and the battery 24 supplies power to the control module 22 through the power processing unit 25. The tag 20 may be provided with a sealing clip to be clipped on the food, but of course, the tag 20 may also be provided with an adhesive member to be attached to a food bag, and when a user puts new food in or takes out the food from the refrigerator, the tag 20 is put in or taken out together.
For example, as shown in fig. 3, the cabinet 10 includes a door 11, the voice recognition module 30 may be disposed at the top of the cabinet 10, and the controller 40 may be disposed on the door.
In a specific embodiment, when a user needs to put food materials in, any tag 20 is selected, and the tag 20 is used as a target tag 20; a user triggers the trigger module 21 of the target tag 20 through a predetermined trigger mode, and when the control module 22 of the target tag 20 detects that the trigger module 21 meets a trigger condition, a pairing request is sent to the controller 40; when the controller 40 receives the pairing request, pairing with the target tag 20 according to the pairing request; if the pairing is successful, the controller 40 controls the voice recognition module 30 to start so as to collect voice information input by the user, and if the pairing is failed, the controller 40 terminates the food material management; after controlling the voice recognition module 30 to start, in response to receiving the voice information input by the user, the controller 40 may recognize the food material information in the voice information according to a preset food material information field, where the food material information field may include a food material name, a date of storage, an expiration date, and the like; after obtaining the identification result, the controller 40 sends the identification result to the control module 22 of the target tag 20, so that the control module 22 of the target tag 20 controls the display screen 23 to display the identification result for the user to look up, and performs food material management according to the identification result.
In the refrigerator provided by the embodiment of the invention, the label 20 is provided with the trigger module 21, the control module 22 and the display screen 23, when the control module 22 detects that the trigger module 21 meets the trigger condition, the label 20 and the controller 40 are paired, after the pairing is successful, the controller 40 controls the voice recognition module 30 to start, so as to collect voice information input by the user, and performs food material information recognition on the voice information to obtain a recognition result, and then causes the display screen 23 of the tag 20 to display the recognition result for the user to look up, and performs food material management according to the recognition result, therefore, the food material corresponding to the tag 20 can be set according to the voice instruction of the user, the use flexibility of the tag 20 is improved, and then the flexibility of food material management is improved, and manageable food material types are not limited by the number of the tags 20, so that the manageable food material types are abundant, and the comprehensiveness of food material management is improved.
As one of alternative embodiments, the controller 40 includes a first processing unit and a first bluetooth communication unit; the information transmission in the controller 40 is performed by a first bluetooth communication unit, and the information processing and program execution in the controller 40 are performed by a first processing unit.
Referring to fig. 2, the control module 22 includes a second processing unit 221 and a second bluetooth communication unit 222; the information transmission in the control module 22 is performed by the second bluetooth communication unit 222, and the information processing and program execution in the control module 22 are performed by the second processing unit 221.
The pairing request includes authentication information of the target tag 20;
wherein, in response to receiving the pairing request, pairing with the target tag 20 that sent the pairing request according to the pairing request includes:
s1011, responding to the received pairing request, verifying whether the target tag 20 sending the pairing request meets the pairing condition according to the verification information in the pairing request;
s1012, if yes, establishing a pairing connection between the first bluetooth communication unit and the second bluetooth communication unit 222 of the target tag 20;
and S1013, if the matching is not met, determining that the matching fails.
For example, the verification information may be an identification code of the tag 20, and the pairing condition may be that the identification code belongs to a preset identification code set. Of course, the verification information and the pairing condition may also be set according to actual requirements, and are not limited herein.
In this embodiment, the controller 40 and the control module 22 of the tag 20 adopt bluetooth communication, which has the advantages of low power consumption, low cost and low time delay, and after receiving the pairing request, the controller 40 verifies whether the target tag 20 meets the pairing condition, and then determines whether to pair with the target tag 20 according to the verification result, thereby ensuring the safety of food material management.
As an alternative embodiment, the controller 40 is further configured to:
s111, when the pairing is failed, sending pairing failure information to the control module 22 of the target tag 20, so that the control module 22 of the target tag 20 controls the display 23 of the target tag 20 to display information for instructing the user to resend the pairing request.
In this embodiment, if the pairing fails, the user can be prompted to re-pair through the display screen 23 in time, so that the user experience in the food material management process is improved.
As one of alternative embodiments, the triggering module 21 includes a key;
the trigger condition includes occurrence of a first press event on the key.
For example, the schematic structural diagram of the tag 20 in this embodiment may be as shown in fig. 4a and 4b, where the key may be disposed beside the display 23, and of course, the key may also be disposed at another position on the tag 20, which is not limited herein.
In this embodiment, when a user needs to put food materials into the tag, the first press event is sent out on the key of the tag 20, so that the control module 22 is triggered to send a pairing request to the controller 40, and a subsequent food material management process is executed, thereby improving convenience of food material management.
Further, the control module 22 is further configured to send an entry start signal to the controller 40 when detecting that a second pressing event occurs on the key;
the food material input condition further comprises receiving the input starting signal.
In this embodiment, setting the food material entry condition further includes receiving an entry start signal, so that the voice recognition module 30 can be started according to the instruction of the user, and flexibility of food material management is improved.
Optionally, the response operation further includes an operation of displaying the identification result corresponding to the third pressing event, so that the user can obtain the basic information of the food material identified by the target tag 20 from the display 23 by sending the third pressing event on the key of the tag 20.
It should be noted that the first pressing event, the second pressing event, and the third pressing event may be set according to actual requirements, for example, the first pressing event is set as a long pressing event, the second pressing event is set as a short pressing event, and the third pressing event is set as a double-click event.
As one of the optional embodiments, the triggering module 21 includes a first NFC module;
the refrigerator further comprises an NFC tag storage device; the NFC tag storage device comprises a box body and a second NFC module arranged on the box body; a number of said tags 20 being housed within said case when not in use;
the second NFC module is configured to establish an NFC connection with the first NFC module of each tag 20 in the cartridge;
the trigger condition includes that the first NFC module is disconnected from the NFC connection of the second NFC module.
For example, the structure of the tag 20 in this embodiment may be as shown in fig. 5a and 5b, which is not described herein again. The refrigerator in this embodiment may have a structure as shown in fig. 6, the voice recognition module 30 may be disposed at the top of the refrigerator body 10, the controller 40 may be disposed in the hinge cover 12, and the NFC tag receiving device 50 may be disposed on the door shelf.
In this embodiment, a plurality of tags 20 are stored in the box body when not in use, and an NFC connection is established between the first NFC module of each tag 20 in the box body and the second NFC module of the NFC tag storage device, so that when a user needs to place food materials in the refrigerator, the tag 20 corresponding to the food materials is taken out from the box body of the NFC tag storage device, after the tag 20 is taken out, the NFC connection is disconnected between the first NFC module of the tag 20 and the second NFC module of the NFC tag storage device, the control module 22 can determine that food material management aiming at the tag 20 is to be performed, so that a pairing request is sent to the controller 40, and convenience in food material management can be effectively improved.
As an optional embodiment, the control module 22 is further configured to control the tag 20 to enter a sleep state after controlling the display screen 23 to display the identification result, so that energy consumption of the tag 20 can be effectively reduced.
As one optional embodiment, the refrigerator further comprises a prompt module;
after the identifying the food material information in the voice information in response to receiving the voice information input by the user, and obtaining the identification result, the controller 40 is further configured to:
s121, judging whether the identification result contains food material information or not;
s122, if yes, controlling the voice recognition module 30 to stop running, and executing the next step;
and S123, if not, controlling the prompt module to send prompt information for instructing the user to input the food materials again in a voice mode, and returning the response to the voice information input by the user, recognizing the food material information in the voice information, and obtaining a recognition result.
For example, in step S121, it may be determined whether the food material information is contained in the recognition result by determining whether the content of the preset food material information field is contained in the recognition result.
In this embodiment, after the identification result is obtained, whether the identification result includes food material information is further determined, if yes, it is determined that the food material identification is successful, at this time, the steps of sending the identification result to the control module 22 of the target tag 20 and managing the food material according to the identification result are continuously executed, so that the food material management is completed, if not, it is determined that the food material identification is failed, at this time, the control prompting module prompts the user to re-enter the food material information, and re-execute the food material identification, so that the food material information is prevented from being misread or misread, and the accuracy of the food material management is improved.
As one optional embodiment, the performing food material management according to the food material management information specifically includes:
and uploading the identification result to a server, so that the server stores the identification result in a preset food material management database.
In the embodiment, the identification result is uploaded to the server for storage, so that the memory occupation in the refrigerator can be effectively reduced.
Fig. 7 is a schematic flow chart of a control method of a refrigerator according to an embodiment of the present invention.
The method for controlling a refrigerator provided in this embodiment may be applied to any refrigerator provided in the above embodiments, and specifically includes:
s21, the controller responds to a pairing request sent by any label and pairs with a target label sending the pairing request according to the pairing request;
s22, when determining that the food material recording condition is met, the controller controls the voice recognition module to start; wherein the food material input condition at least comprises successful matching with the target label;
s23, the controller responds to the received voice information input by the user, and food material information in the voice information is recognized to obtain a recognition result;
s24, the controller sends the recognition result to the control module of the target label, so that the control module of the target label controls the display screen to display the recognition result;
and S25, the controller manages the food materials according to the identification result.
The control method of the refrigerator provided by the embodiment of the invention is characterized in that the label is provided with the trigger module, the control module and the display screen, the control module matches the label with the controller when detecting that the trigger module meets the trigger condition, after the pairing is successful, the controller controls the voice recognition module to start so as to collect voice information input by a user, and identifying the voice information to obtain identification result, displaying the identification result on the display screen of the label for the user to look up, and managing food material according to the identification result, therefore, the food material corresponding to the label can be set according to the voice indication of the user, the use flexibility of the label is improved, and then the flexibility of food material management is improved, the manageable food material types are not limited by the number of tags, the manageable food material types are rich, and the comprehensiveness of food material management is improved.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A refrigerator, characterized by comprising:
a box body;
the food material processing device comprises a plurality of labels arranged on food materials, wherein each label comprises a trigger module, a control module and a display screen; the control module is used for sending a pairing request to the controller when detecting that the trigger module meets a trigger condition;
the voice recognition module is used for collecting voice information input by a user and sending the voice information to the controller;
the controller configured to:
in response to receiving the pairing request, pairing with a target tag sending the pairing request according to the pairing request;
when the food material recording condition is determined to be met, controlling the voice recognition module to start; wherein the food material input condition at least comprises successful matching with the target label;
responding to received voice information input by a user, identifying food material information in the voice information, and obtaining an identification result;
sending the identification result to a control module of the target label, so that the control module of the target label controls the display screen to display the identification result;
and managing the food materials according to the identification result.
2. The refrigerator as claimed in claim 1, wherein the controller includes a first bluetooth communication unit; the control module comprises a second Bluetooth communication unit;
the pairing request comprises verification information of the target tag;
wherein, in response to receiving the pairing request, pairing with a target tag that sent the pairing request according to the pairing request includes:
in response to receiving the pairing request, verifying whether a target tag sending the pairing request meets a pairing condition according to verification information in the pairing request;
if yes, establishing pairing connection between the first Bluetooth communication unit and a second Bluetooth communication unit of the target tag;
if not, the pairing is judged to be failed.
3. The refrigerator of claim 1, wherein the controller is further configured to:
and when the pairing is failed, transmitting pairing failure information to the control module of the target label, so that the control module of the target label controls the display screen of the target label to display information for indicating the user to resend the pairing request.
4. The refrigerator as claimed in claim 1, wherein the triggering module includes a key;
the trigger condition includes occurrence of a first press event on the key.
5. The refrigerator of claim 4, wherein the control module is further configured to send an entry initiation signal to the controller upon detecting a second press event on the key;
the food material input condition further comprises receiving the input starting signal.
6. The refrigerator of claim 1, wherein the trigger module comprises a first NFC module;
the refrigerator further comprises an NFC tag storage device; the NFC tag storage device comprises a box body and a second NFC module arranged on the box body; a plurality of said labels being received within said cartridge when not in use;
the second NFC module is used for establishing NFC connection with the first NFC module of each tag in the box body;
the trigger condition includes that the first NFC module is disconnected from the NFC connection of the second NFC module.
7. The refrigerator of claim 1, wherein the control module is further configured to control the tag to enter a sleep state after controlling the display screen to display the identification result.
8. The refrigerator of claim 1, further comprising a reminder module;
after the identifying of the food material information in the voice information in response to receiving the voice information input by the user is finished, the controller is further configured to:
judging whether the identification result contains food material information or not;
if so, controlling the voice recognition module to stop running and executing the next step;
and if not, controlling the prompt module to send prompt information for instructing the user to input the food materials again by voice, and returning the response to the received voice information input by the user, identifying the food material information in the voice information, and obtaining an identification result.
9. The refrigerator according to claim 1, wherein the food material management according to the recognition result is specifically:
and uploading the identification result to a server, so that the server stores the identification result in a preset food material management database.
10. A control method of a refrigerator, applied to the refrigerator according to any one of claims 1 to 9, comprising:
the controller responds to a pairing request sent by any one tag, and is paired with a target tag sending the pairing request according to the pairing request;
the controller controls the voice recognition module to start when determining that the food material input condition is met; wherein the food material input condition at least comprises successful matching with the target label;
the controller responds to the received voice information input by the user, identifies the food material information in the voice information and obtains an identification result;
the controller sends the identification result to a control module of the target label, so that the control module of the target label controls the display screen to display the identification result;
and the controller manages the food materials according to the identification result.
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| CN202111219490.0A CN113915949B (en) | 2021-10-20 | 2021-10-20 | Refrigerator and control method thereof |
| PCT/CN2022/094562 WO2023065662A1 (en) | 2021-10-20 | 2022-05-23 | Refrigerator, and control method for refrigerator |
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| CN202111219490.0A CN113915949B (en) | 2021-10-20 | 2021-10-20 | Refrigerator and control method thereof |
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| CN113915949B (en) | 2023-04-25 |
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Address after: 266000 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant after: Hisense refrigerator Co.,Ltd. Address before: 266100 Songling Road, Laoshan District, Qingdao, Shandong Province, No. 399 Applicant before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
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