WO2023093534A1

WO2023093534A1 - Refrigerator food material management module and refrigerator

Info

Publication number: WO2023093534A1
Application number: PCT/CN2022/130921
Authority: WO
Inventors: 孙兴凯; 孔令磊
Original assignee: 沈阳海尔电冰箱有限公司; 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2021-11-26
Filing date: 2022-11-09
Publication date: 2023-06-01
Also published as: CN116182496A

Abstract

A refrigerator food material management module, comprising: an identification element, wherein a radio frequency tag is provided on the identification element; an identification access device, wherein a radio frequency reading module is provided in the identification access device; a control module, configured to control the radio frequency reading module to read the radio frequency tag in the identification access device; and a processing module, configured to obtain, according to tag information read by the radio frequency reading module, an access state of the identification element and food material information associated with the identification element.

Description

Refrigerator material management module and refrigerator

technical field

The invention relates to the field of household appliances, in particular to a refrigerator material management module and a refrigerator using the refrigerator material management module.

Background technique

In order to meet the diverse needs of users, some refrigerators are equipped with food management devices. For example, if a radio frequency tag access device is installed in the refrigerator and a tag is placed in the radio frequency tag access device, the user can store items in the refrigerator. By attaching a radio frequency tag, the information in the radio frequency tag can be correlated with the information of the ingredients. In this way, the ingredients in the refrigerator can be intelligently managed through the tag changes in the radio frequency tag access device.

However, since this method indirectly obtains the information of the ingredients stored in the refrigerator by reading the tag information in the radio frequency tag access device, often there will be inaccurate identification.

Contents of the invention

In order to solve the above problems, the present invention proposes a refrigerator ingredients management module, which can reduce recognition errors.

In order to achieve one of the objectives of the above invention, an embodiment of the present invention provides a refrigerator ingredients management module, including:

An identification piece, the identification piece is provided with a radio frequency tag;

An identification access device, the identification access device is provided with a radio frequency reading module;

A control module configured to control the radio frequency reading module to read the radio frequency tag in the identification access device;

A processing module, configured to acquire the access status of the identification piece and the food material information associated with the identification piece according to the tag information read by the radio frequency reading module, if the same identification piece is detected within the first preset time period If the number of access status changes is greater than or equal to two times, the ingredients storage list is managed according to the final access status of the identifier.

As a further improvement of an embodiment of the present invention, the control module is specifically configured to: control the radio frequency reading module to read the radio frequency tag of the identification member at a preset time interval;

The processing module is configured to: after receiving the tag information read by the radio frequency reading module for a second preset period of time, manage the food storage list according to the access state of the identifier, wherein the first preset The duration is greater than or equal to twice the preset time interval, and the second preset duration is greater than or equal to twice the preset time interval.

As a further improvement of an embodiment of the present invention, the processing module is specifically configured as:

If the initial access status of the identifier is the same as the final access status within the first preset time period, then keep the ingredient information corresponding to the identifier in the ingredient storage list unchanged.

As a further improvement of an embodiment of the present invention, each of the radio frequency tags stores coded information, and the food material management module further includes a storage module, which stores the coded information of the tag and the coded information. Information about ingredients corresponding to the information;

The processing module is further configured to: mark the identification piece as an abnormal identification piece if the coded information read by the radio frequency reading module is not found in the storage module.

As a further improvement of an embodiment of the present invention, the processing module is further configured to:

If the coded information read by the radio frequency reading module includes two or more identical coded information, mark the identification piece corresponding to the two or more identical coded information as an abnormal identification piece.

As a further improvement of an embodiment of the present invention, the processing module is further configured to record the take-out time of the identification piece when the access state of the identification piece is changed from a deposit state to a take-out state.

To achieve one of the objectives of the above invention, an embodiment of the present invention provides a refrigerator, including a box body and a door for opening and closing the box body, and the refrigerator further includes the refrigerator in any one of the above embodiments.

As a further improvement of an embodiment of the present invention, the refrigerator further includes a door switch state detection module configured to detect the switch state of the door; the identification access device is installed on the door, and the control The module is further configured to: when it is detected that the door is in an open state, control the radio frequency reading module to read the tag in the identification access device in real time.

As a further improvement in an embodiment of the present invention, the control module is further configured to:

If the switch state of the door changes from the open state to the closed state, the radio frequency reading module is controlled to read the tags in the identification storage device for a preset number of times and then stop running.

As a further improvement of an embodiment of the present invention, the radio frequency reading module includes dual antennas.

The refrigerator ingredient management module provided by the present invention manages the ingredient storage list according to the final access state of the identifier when it detects that the number of access state changes of the same identifier within the first preset time period is greater than or equal to two. In this way, when the access state of the identification piece changes too quickly, it is automatically determined that there is an abnormal situation and the intermediate invalid information is filtered, and the food storage list is managed according to the final access state.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a three-dimensional schematic diagram of a refrigerator material management module according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of a refrigerator module according to an embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Referring to FIG. 1 to FIG. 3 , the present application provides a refrigerator 100 , which includes a box body and a door body 101 for opening and closing the box body. The storage compartment formed in the box may include a refrigerating compartment and a freezing compartment, and the door 101 may include a refrigerating door 101 for opening and closing the refrigerating compartment and a freezing door 101 for opening and closing the freezing compartment. A display screen 102 may also be provided on the refrigerator 100 , and the user may interact with the refrigerator 100 through the display screen 102 . Alternatively, the refrigerator 100 may be provided with a voice module, and the user may interact with the refrigerator 100 through the voice module.

The refrigerator 100 can also be equipped with a WiFi module, through which the data information inside the refrigerator 100 can be transmitted to the cloud or obtained from the cloud, and can also communicate with mobile terminals such as mobile phones through the WiFi module.

In one embodiment of the present invention, the refrigerator 100 includes a refrigerator ingredient management module 200. The refrigerator ingredient management module 200 can automatically manage the ingredient information in the refrigerator 100. For example, it can obtain the names of ingredients stored in the refrigerator 100 and the storage time of the ingredients. Wait for food material information, and display through display screen 102 or broadcast through voice module, of course, also can transmit to the mobile terminal such as mobile phone through WiFi module, facilitate user to check in real time.

In this embodiment, the refrigerator ingredient management module 200 includes an identification piece 210 and an identification access device 220 . The identification piece 210 may be provided with a radio frequency tag 211, and the radio frequency tag 211 may be an RFID tag or an NFC tag. The identification part 210 may be a clip, and the radio frequency tag 211 is attached to the clip, or the identification part may be only the radio frequency tag 211 . The identification access device 220 can be provided with a radio frequency reading module 230, the identification member 210 can be placed in the identification access device 220, the identification access device 220 can be installed on the door 101 of the refrigerator 100, specifically, it can be installed on The inner side of the refrigerator door 101 is convenient for the user to access the identification part 210 during use. When the user wants to store ingredients in the refrigerator 100, he can take out the identification piece 210 from the identification access device 220, attach the identification piece 210 to the food and store it in the refrigerator 100 together with the food, and when the user takes out the food from the refrigerator 100 , the identification piece 210 attached to the food can be removed and put into the identification access device 220 .

The ingredients management module may also include a control module 240 and a processing module 250 . Wherein, the control module 240 and the processing module 250 can be independent of the control module 240 and the processing module 250 of the refrigerator 100, and can also share the control module 240 and the processing module 250 with the refrigerator 100, and the processing module 250 can also be set in the cloud.

In this embodiment, the control module 240 can be configured to control the radio frequency reading module 230 to read the radio frequency tag 211 in the identification access device 220, and the processing module 250 can be configured to obtain the tag information read by the radio frequency reading module 230 The access state of the identifier 210 and the food information associated with the identifier 210, and the food storage list can be managed according to the access status of the identifier 210. Wherein, the ingredient storage list can be displayed through the display screen 102, and the ingredient information stored in the refrigerator 100 can be acquired through the ingredient storage list.

Coded information may be stored in the radio frequency tags 211, and each tag 211 may have a unique corresponding code. The refrigerator ingredient management module 200 may also include a storage module 260, which may store the codes of the identifiers 210 and the ingredient information corresponding to each code, and the ingredient information corresponding to each code is its corresponding identifier 210. Associated ingredient information. At the same time, for the convenience of the user, the identification member 210 may indicate its corresponding ingredient information in the form of text or illustration.

After the processing module 250 receives the code of the tag 211 read by the radio frequency reading module 230, it can inquire whether there is a corresponding code in the storage module 260, and the food information corresponding to the code, and then according to the access status of the identification piece 210 It is judged whether the food is stored in the refrigerator 100 or not. When the access state of the identification piece 210 in the identification access device 220 changes, it can be considered that the food stored in the refrigerator 100 changes.

Of course, the storage module 260 can also only store the code of the preset identification piece 210. When the radio frequency reading module 230 detects that the user takes out the identification piece 210 from the identification access device 220, if the identification is not stored in the storage module 260 The material information corresponding to the code corresponding to the piece 210, at this time, a prompt can be sent through the display screen 102, voice module or mobile terminal such as a mobile phone, prompting the user to input the material information independently and storing the material information input by the user in the storage module 260. When it is detected that the user puts the identification piece 210 back into the identification access device 220 , the food material information corresponding to the code of the identification piece 210 in the storage module 260 can be deleted.

In addition, the code stored in the tag 211 can be the code that comes with the radio frequency tag 211 when it is manufactured, or it can be the code that is written later. In order to improve transmission efficiency, short codes, such as 01, 02, and 03, can be written in the label 211 , which is also convenient for the management and mass production of the storage module 260 .

As a specific example, five identification pieces 210 can be stored in the identification access device 220, and the label 211 codes of the five identification pieces 210 can be respectively 01, 02, 03, 04, and 05, and the storage module 260 can store each The ingredient information corresponding to each code, such as 01-beef; 02-fish; 03-apple; 04-vegetables; 05-milk. If the radio frequency reading module 230 detects that the codes of the tags 211 placed in the identification access device 220 are 01, 03, and 04, the access state of the identification piece 210 corresponding to 01, 03, and 04 can be marked as the deposit state, The state of the identification piece 210 corresponding to 02 and 05 is the removal state. That is, it can be considered that the user has taken away the identification pieces 210 corresponding to 02 and 05 and attached them to the corresponding ingredients and stored them inside the refrigerator 100. At this time, it can be displayed in the ingredient storage list that fish and milk are stored in the refrigerator 100. For example, 02-fish and 05-milk can be displayed in the storage ingredients column on the display screen 102 of the refrigerator 100 .

In one embodiment of the present invention, the processing module 250 is further configured to, if it is detected that the number of access state changes of the same identification piece 210 within the first preset time period is greater than or equal to two times, according to the final access status of the identification piece 210 State management ingredient storage list.

In this embodiment, if it is detected that the access state of the identification member 210 has changed multiple times within the first preset time period, it can be determined that there may be an abnormal situation at this time. Labels 211 that block other identification pieces 210 in the process of 210 are not identified, or the refrigerator 100 door 101 shakes or the identification access device 220 shakes during use, causing the identification pieces 210 accessed in the identification access device 220 to jump , causing the radio frequency reading module 230 to fail to read the label 211 of the identification piece 210, or the label 211 attached to the food may be misread when the user takes out some food or checks the food. If the ingredient storage list is updated in real time according to the actual access status of the identifier 210, the accuracy of the corresponding ingredient information storage situation will be affected, and at the same time, the ingredient information corresponding to the same identifier 210 in the ingredient storage list may be stored in a short period of time. The information is constantly changing, and the corresponding information jumps on the display screen 102 or is repeatedly broadcast through the voice module, which easily gives the user the impression of failure and affects the user experience.

Further, in one embodiment of the present invention, the control module 240 is specifically configured to: control the radio frequency reading module 230 to read the radio frequency tag 211 in the identification access device 220 at a preset time interval; the processing module 250 is configured to: receive After the tag information read by the radio frequency reading module 230 is set for a second preset time period, the material storage list is managed according to the access state of the identification piece 210, wherein the first preset time length is greater than or equal to twice the preset time interval, and the second preset time length is twice as long as the preset time interval. Set the duration to be greater than or equal to twice the preset time interval.

In this embodiment, the radio frequency reading module 230 may include an antenna, and in order to improve the accuracy of identification, the radio frequency reading module 230 may include dual antennas. The identification access device 220 can be a box body installed on the door lining of the door body 101, the box body can extend along the width direction of the door body 101, and the double antennas can be respectively arranged at both ends of the box body, synchronously to the identification access device 220. The identification piece 210 is scanned, and deduplication processing is performed after the scanning, and the codes corresponding to the tags repeatedly scanned by the two antennas are removed. During operation, the radio frequency reading module 230 can keep working continuously, and the antenna can scan sequentially from one side to the other, and the preset time interval can be the time required for the antenna to completely scan once, that is, for the same identifier Let the time interval be scanned once by the antenna. Of course, the preset time interval may also be a time interval between when the antenna completely completes one scan and when the antenna is started to scan again, or a time interval between when the antenna is started twice.

The tag 211 information read by the radio frequency reading module 230 can be transmitted to the processing module 250 , and the processing module 250 can process the tag 211 information and display it on the display screen 102 . The processing module 250 updates the ingredient storage list after receiving the tag information read by the radio frequency reading module 230 for a second preset time period, so that during the time between updating the ingredient storage list twice, the radio frequency reading module 230 can at least The label 211 of the identification piece 210 in the identification access device 220 is read twice, so that more accurate information can be processed, and at the same time, the timeliness of updating the food storage list can be guaranteed as much as possible.

Further, in an embodiment of the present invention, the processing module 250 is specifically configured as:

If the initial access status of the identifier 210 is the same as the final access status within the first preset time period, the food information corresponding to the marker 210 in the food storage list remains unchanged.

For example, if it is detected at time t1 that the access state of the tag coded as 01 is the put-in state, at time t2 it is detected that the access state of the tag coded as 01 is the take-out state, and at time t3 It is detected that the access state of the identification piece whose tag code is 01 is the storage state, if the time interval from t1 to t3 is less than the first preset time length, and the access state of the identification piece 210 at the time t1 and t3 is the same, that is, in The initial access state of the identification piece 210 within the first preset time period is the same as the final access state, then it can be considered that the access state of the identification piece 210 has not changed within the first preset time period, and there is no need to modify the identification in the food storage list. The ingredient information associated with item 210 is updated.

Further, in an embodiment of the present invention, the processing module 250 is also configured to:

If the coded information read by the radio frequency reading module 230 is not found in the storage module 260 , mark the identification piece 210 as an abnormal identification piece 210 .

In this embodiment, if the user puts other items with radio frequency tags 211 into the identification access device 220, disturbing information will be generated, which may cause confusion in the food storage list. Therefore, when the coded information read by the radio frequency reading module 230 is not stored in the storage module 260, the identification piece 210 can be directly marked as an abnormal identification piece 210, as can be prompted through interactive modules such as the display screen 102, and at the same time , the identification piece 210 can be directly recorded in the storage module 260 as an abnormal identification piece 210, and the ingredient storage list is not updated according to it.

Further, in an embodiment of the present invention, the processing module 250 is further configured to: if the coded information read by the radio frequency reading module 230 includes two or more identical coded information, then the two or more The identification piece 210 corresponding to the same code is marked as an abnormal identification piece 210 .

In this embodiment, in order to ensure the normal operation of the food management module, the code in each identification piece 210 is a single code different from the codes of other identification pieces 210, so that different food materials can be distinguished by codes. If the radio frequency reading module 230 reads two identical coded information, it means that the identification piece 210 on other similar refrigerators 100 may be put into the identification access device 220 by mistake. The identification pieces 210 with the same label code are marked as abnormal identification pieces 210.

Further, in one embodiment of the present invention, the processing module 250 is also configured to: when the access state of the identification piece 210 changes from the storage state to the withdrawal state, record the take-out time of the identification piece 210.

In this embodiment, the take-out time can be recorded when the identification piece 210 is taken out, and the take-out time of the identification piece 210 can be determined as the time when the food material corresponding to the identification piece 210 is stored in the refrigerator 100. Record the storage time of the corresponding ingredients. The storage module 260 can also store the optimal storage time corresponding to the ingredients, and when it is detected that the storage time of the ingredients reaches the optimal storage time, it can control to issue a corresponding prompt. If within the first preset time period, it is detected that the access state of the identification piece 210 has changed twice or more than two times, and both the initial access state and the final access state are in the removal state, then the identification piece is recorded according to the initial access state. 210 corresponds to the take-out time. In this way, it is possible to avoid errors in the record of the storage time of the corresponding ingredients caused by the abnormal state, which will lead to failure to prompt in time when the actual storage time of the ingredients reaches the optimum storage time.

Further, in an embodiment of the present invention, a door switch state detection module 103 may also be installed on the refrigerating door 101 of the refrigerator 100 . The door switch state detection module 103 can be used to detect the switch state of the door body 101, and the door body switch state detection module 103 can be a pressure sensor or a hall sensor or any other suitable sensor installed between the door body 101 and the box body. The control module 240 is configured to: when detecting that the door body 101 is in an open state, control the radio frequency reading module 230 to read the tag 211 in the identification access state device in real time; state, then control the radio frequency reading module 230 to read the tag 211 in the identification storage device for a preset number of times and then stop running. In this way, reading the tag 211 information of the identification piece 210 in real time when the door is opened can improve the timeliness and identification accuracy of the radio frequency reading module 230 to read the tag 211; Stopping the operation of the module 230 can not only ensure the identification accuracy of the identification part 210 but also reduce energy consumption.

It should be understood that although the description is described according to the embodiments, not each embodiment only includes an independent technical solution, and this description of the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or changes made without departing from the technical spirit of the present invention All should be included within the protection scope of the present invention.

Claims

A refrigerator material management module, characterized in that it includes:

An identification piece, the identification piece is provided with a radio frequency tag;

An identification access device, the identification access device is provided with a radio frequency reading module;

A control module configured to control the radio frequency reading module to read the radio frequency tag in the identification access device;

A processing module, configured to acquire the access status of the identification piece and the food material information associated with the identification piece according to the tag information read by the radio frequency reading module, if the same identification piece is detected within the first preset time period If the number of access status changes is greater than or equal to two times, the ingredients storage list is managed according to the final access status of the identifier.
The refrigerator ingredient management module according to claim 1, wherein the control module is specifically configured to: control the radio frequency reading module to read the radio frequency tag of the identification member at a preset time interval;

The processing module is configured to: after receiving the tag information read by the radio frequency reading module for a second preset period of time, manage the food storage list according to the access state of the identifier, wherein the first preset The duration is greater than or equal to twice the preset time interval, and the second preset duration is greater than or equal to twice the preset time interval.
The refrigerator ingredients management module according to claim 1, wherein the processing module is specifically configured as:

If the initial access status of the identifier is the same as the final access status within the first preset time period, then keep the ingredient information corresponding to the identifier in the ingredient storage list unchanged.
The refrigerator ingredient management module according to claim 1, wherein coded information is stored in each of the radio frequency tags, and the ingredient management module further includes a storage module, and the tag is stored in the storage module The coding information of the coding information and the ingredient information corresponding to the coding information;

The processing module is further configured to: mark the identification piece as an abnormal identification piece if the coded information read by the radio frequency reading module is not found in the storage module.
The refrigerator ingredient management module according to claim 1, wherein the processing module is further configured as:

If the coded information read by the radio frequency reading module includes two or more identical coded information, mark the identification piece corresponding to the two or more identical coded information as an abnormal identification piece.
The refrigerator ingredient management module according to claim 1, wherein the processing module is further configured to: when the access status of the identification item is changed from the storage status to the removal status, record the status of the identification item Take out time.
A refrigerator, comprising a box body and a door body for opening and closing the box body, characterized in that the refrigerator further includes the refrigerator ingredients management module according to claim 1 .
The refrigerator according to claim 7, further comprising a door switch state detection module configured to detect the switch state of the door; the identification access device is installed on the door, and the control The module is further configured to: when it is detected that the door is in an open state, control the radio frequency reading module to read the tag in the identification access device in real time.
The refrigerator according to claim 8, wherein the control module is further configured to:

If the switch state of the door changes from the open state to the closed state, the radio frequency reading module is controlled to read the tags in the identification storage device for a preset number of times and then stop running.
The refrigerator according to claim 7, wherein the radio frequency reading module includes dual antennas.