CN101071411A - Food magnagementregerator utilizing RFID - Google Patents
Food magnagementregerator utilizing RFID Download PDFInfo
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- CN101071411A CN101071411A CNA2006100136632A CN200610013663A CN101071411A CN 101071411 A CN101071411 A CN 101071411A CN A2006100136632 A CNA2006100136632 A CN A2006100136632A CN 200610013663 A CN200610013663 A CN 200610013663A CN 101071411 A CN101071411 A CN 101071411A
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Abstract
This invention relates to refrigerator food put and out control display technology. In particular, it uses RFID access to the intelligence as food containers for the food preservation food management information. The management of the use of food in the refrigerator RFID food management refrigerator is effective. The invention of the use of RFID food management refrigerator, its characteristics are: RFID dedicated containers from the container read intelligence RFID reader devices; food storage management information storage devices; to management and the special containers with RFID be stored in the refrigerator stored in the food, from the RFID reader device in the containers intelligence, the intelligence as food containers stored in the management information storage device control device.
Description
Technical field
The present invention relates to the taking-up control display technique of packing into of refrigerator cold-storage food, particularly, the food control information of the special container information that utilizes the acquisition of RFID wireless identification as preservation food, the food magnagementregeratorutilizing that utilizes RFID of food in the management box effectively.
Background technology
Some refrigerator preserve in order to keep food freshness, independent antistaling box is set, allow the user use as required with being allowed a choice.This refrigerator is used to preserve multiple food.Because the user can not all remember the product of suffering from indigestion in the refrigerator, therefore can only the opening and closing refrigerator doors check in order to confirm, during the food confirming to be deposited in the refrigerator by said method, owing to each open the problem that refrigerator doors causes power consumption, otherwise cause expired preservation again easily, cause food decay, cause the waste of food.
In order to address the above problem No. 0377741 (denomination of invention: refrigerator preservation food display control unit), proposed to confirm from the outside refrigerator of the preservation food in the refrigerator of Korea S's special permission accession number.The refrigerator of Here it is Fig. 1.
As shown in Figure 1, existing refrigerator comprises the oscillation circuit (oscillatory circuit) 10 that produces certain frequency; The oscillation frequency of oscillation circuit output is pressed the set specific frequency signal frequency division, produce the frequency loop (Frequency Dividing circuit) 11 of reference time; Import the output signal of above-mentioned frequency loop, carry out the time timing loop 12 of timing; Based on the time of above-mentioned time timing loop 12 timing, the date timing loop 13 of Date Of Change when reaching certain hour; Store the be correlated with RAM memory storage 14 of information of institute's thing of suffering from indigestion in the various casees; Be used for the user import the options button portion 15 of the relevant information of the various product of suffering from indigestion of product kind, quantity and the pot-life etc. of suffering from indigestion; Under the control action of CPU central processing unit 19, press the preservation food date display part 16 on certain hour interval update displayed time and date; The expired food display part 17 that shows expired food; By the certain hour preservation food order display part 18 of the institute's product information of suffering from indigestion demonstration of updated stored device 14 storages at interval; Information with the product of being suffered from indigestion that are stored in memory storage 14 is as the criterion, and allows show the central processing unit 19 of preserving food time/date, expired food information and current preservation food successively.
Current refrigerator with said structure, the user by key input part 15 directly input the product information of suffering from indigestion, be stored in memory storage 14 after, demonstration the product time/date of suffering from indigestion, expired food information and current preservation food.
In the prior art, the user suffer from indigestion in order to obtain product information, need the manually title of a plurality of food of input.In addition, in order to import foregoing, options button portion 15 need have and the similar function of computor-keyboard, so the complex structure of its options button portion 15, has increased the manufacturing cost of refrigerator.In addition, this keyboard-type input can consume very long input time.
Summary of the invention
The present invention proposes for the problem that solves above-mentioned prior art existence, its purpose is for providing a kind of RFID's of utilization (wireless identification), the user need not import the food magnagementregeratorutilizing of the product title of suffering from indigestion, and automatically shows storage container information, easily suffering from indigestion product is managed.In addition, another object of the present invention is managed the preservation Start Date and the pot-life information of food simultaneously for a kind of RFID of utilization is provided the food magnagementregeratorutilizing of (wireless identification), and information such as open date are provided for the user.
In addition, another object of the present invention realizes informing the pot-life information of food for the food magnagementregeratorutilizing of a kind of RFID of utilization is provided, and allows the user easily carry out food control.
The food magnagementregeratorutilizing that utilizes RFID of the present invention, include: input media, time set, memory storage, display device, control device and supply unit is characterized in that: it comprises can put wherein that the food outside surface is being pasted the RFID special container of wireless identification label and from the RFID reading device of RFID special container container read intelligence; The user imports the input media of preserving beginning or delete command, pot-life and informing services request; Time set during day of calculating container information time for reading; The memory storage of food storage management information management service; The demonstration food control is served the display device of various pictures and food control information; Power supply device; Be stored in the product of suffering from indigestion in the refrigerator in order to manage with above-mentioned RFID special container, obtain said vesse information from above-mentioned RFID reading device, said vesse information as the control device-microprocessor of food control information storage at above-mentioned memory storage.
Time set when above-mentioned refrigerator comprises the day of calculating container information time for reading, above-mentioned control device time set when above-mentioned day is obtained time for reading, and it as preservation start time of suffering from indigestion product, be included in the above-mentioned food control information, import and be stored in above-mentioned memory storage.
Above-mentioned refrigerator comprises and is used for the input media that the user imports the above-mentioned product pot-life of suffering from indigestion, and above-mentioned control device is included in the pot-life that receives from above-mentioned input media the above-mentioned food control information, is input to memory storage and stores.
Above-mentioned control device receives the relevant product of suffering from indigestion under user's operation, by above-mentioned input media pot-life is informed services request, and it is included in the above-mentioned food control information, is input to memory storage and stores.
Above-mentioned refrigerator comprises the display device that shows above-mentioned food control information to the user.
After above-mentioned control device reads above-mentioned food control information, calculate the preservation fate of the above-mentioned product of suffering from indigestion, transfer on the above-mentioned display device and show.
Above-mentioned control device reads the food control information that comprises above-mentioned pot-life notification service, the certain period before finishing from above-mentioned pot-life, transports to above-mentioned display device and shows certain warning note.
Above-mentioned control device is stored in the input of said vesse information in the memory storage according to the preservation initiation command that is sent by the user that receives from above-mentioned input media.
Above-mentioned control device is removed order according to the preservation state that is sent by the user that receives from above-mentioned input media, takes out from above-mentioned memory storage and deletion container information.
Above-mentioned RFID reading device is arranged on outside, refrigerator front.
Above-mentioned RFID special container be have end face open, put the hollow container of certain food by what encircle more than two that tabular fixed part around the food constitutes from upside, made by plastic or other material, its outside surface near the RFID reading device is being pasted RFID label and identification marking.
Above-mentioned RFID special container has the hollow shape of putting certain food.
Advantage and good effect: have the present invention of said structure, can needn't directly import under the situation of the product title of suffering from indigestion, suffering from indigestion product are managed the user.
In addition, the preservation start time that the present invention manages food together with and/or pot-life information, the relevant information such as pot-life of the product of suffering from indigestion are provided to the user.
In addition, the present invention informs the pot-life information of food in advance to the user, allows the user easily carry out food control.
Description of drawings
Fig. 1 is the refrigerator block diagram of prior art.
Fig. 2 is the food magnagementregeratorutilizing block diagram of the RFID of utilization of the present invention.
Fig. 3 is food magnagementregeratorutilizing front view (FV) and a part of enlarged diagram of the RFID of utilization of the present invention.
Fig. 4 is the RFID special container and preserves the food synoptic diagram.
Fig. 5 is food control information one embodiment.
The explanation of accompanying drawing critical piece
21:RFID (wireless identification) reading device 22: input media
23: time set 24 during day: memory storage
25: display device 30: microprocessor
Embodiment
Below, with reference to embodiments of the invention and accompanying drawing, the present invention is described in detail.But scope of the present invention is not subject to the following examples and accompanying drawing.Scope of the present invention is only limited by claims.
Fig. 2 is the food magnagementregeratorutilizing block diagram of the RFID of utilization of the present invention.Fig. 3 is food magnagementregeratorutilizing front view (FV) and a part of enlarged diagram of the RFID of utilization of the present invention.
As shown in Figure 2, food magnagementregeratorutilizing 100 comprises the RFID reading device 21 of obtaining container information from the RFID special container of putting food (figure slightly) that will be stored in refrigerator inside; Be used for the input media 22 that the user imports number order; Time set 23 when calculating day of date and time; User interface etc.) and the memory storage 24 of food control information etc. storage is used for the various pictures (frame: of food control service; The display device 25 that shows the various pictures (user interface etc.) be used for the food control service and food control information etc.; Above-mentioned each structural member is controlled, obtained and store the container information that will be kept at the food RFID special container in the case, be shown to user's microprocessor 30.This refrigerator 100 can also have and carries out master microprocessor (figure slightly) freezing, the refrigeration control action, connects by order wire between above-mentioned master microprocessor and the microprocessor 30, carries out data communication.Perhaps, refrigerator 100 can carry out freezing, refrigeration control action by microprocessor.In addition, refrigerator 100 has power supply device (figure slightly), is each structural member power supply.
In more detail, RFID reading device 21 for from the refrigerator outside, under user's operation, obtain the food RFID special container information that will be stored in the refrigerator, it comprises characteristic frequency generating apparatus, dispensing device and receiving trap (figure is slightly).RFID reading device 21 the user the RFID special container near in the certain distance time, it is read.In addition, as shown in Figure 3, RFID reading device 21 is in order to allow the user easily carry out scan operation to the RFID special container, be installed in the easy mobile containers of user height (such as, be equivalent to the height of people's chest).This RFID special container is equipped with the RFID paster at external container, and the container information of storing in the above-mentioned RFID paster comprises the intrinsic information that is used to discern the RFID special container, scurries numeral and constitutes such as connecting by one, and such as by ' 1 ', ' 2 ' waits numeral to constitute.Here, in order easily to discern the RFID special container, be formed with the distinguished symbol corresponding or identical (such as literal, numeral, color etc.) in the outside of RFID special container with said vesse information.
Next, day the time time set 23 be date when being used for that RFID reading device 21 obtained the container information of RFID special container and time, the device that calculates, date and time when microprocessor 30 has request, when receiving request offer microprocessor 30.
Next, memory storage 24 is stored the various pictures that show to the user for food control service that the use and management refrigerator is provided at least, and the food control information that is formed by microprocessor 30.These pictures are in order to allow the user easily carry out the interface images that food control provided.In addition, food control information comprises container information at least, can also comprise and preserving time Start Date or preservation fate or pot-life etc.Here, preserving fate is that suffer from indigestion product and RFID special container of actual institute is kept at the interior date of case.Pot-life can be stored in time limit in the case, be the term of validity as suffering from indigestion product.The above-mentioned pot-life person of being to use import the product term of validity of suffering from indigestion or set arbitrarily time limit of input.
Next, display device 25 is used to show above-mentioned each picture (user interface) and food control information, as shown in Figure 3, be formed on refrigerator 100 fronts, is positioned at and height that RFID reading device 21 is identical substantially.As shown in Figure 3, near display device 25, be formed with input media 22, improve the convenience on using.
At first, microprocessor 30 is in order to constitute food control information, the administrative institute product of suffering from indigestion, the picture that shows by the related food management service of memory device stores by display device 25.When the user selected the food control service, microprocessor 30 received its order by input media 22, allows RFID reading device 21 read container information from the RFID special container.At this moment, the user allow put the RFID special container that will be stored in the food of refrigerator be positioned at RFID reading device 21 at a distance of certain distance with the position, obtain the RFID paster of RFID special container and deposit container information.Next, microprocessor 30 is used as the food control information storage to the container information of obtaining in memory storage 24.At this moment, microprocessor 30 can be stored in the memory storage 24 after receiving the relevant order whether the RFID special container container information of reading is stored of being sent by the user.
Here, microprocessor 30 is the time during at memory storage 24 when time set 23 request provides RFID reading device 21 to read container information when day or the container information storage, day the time time of providing of time set 23 (, date with and/or time) and container information together as the food control information storage in memory storage 24.The time that provides is the preservation start time of the product of suffering from indigestion.
In addition, when there was the pot-life (or term of validity) in institute in the product of suffering from indigestion, when particularly the user want the pot-life also adopted as food control information, microprocessor 30 was used to import the picture of the term of validity by display device 25 demonstrations.This demonstration can adopt storage container information with and/or preserve the mode that shows automatically after the start time, the mode that also can adopt the user to select the back to show.At this moment pot-life can be housed in the RFID special container outside time of the product of suffering from indigestion by manufacturers set, the time of also can the person of being to use setting arbitrarily.
By said process, refrigerator 100 obtains to be stored in the food control information in the case, is stored in the memory storage 24 to manage.Afterwards, when the user wants to confirm the institute thing catalogue of suffering from indigestion (catalogue of RFID special container) in the current refrigerator 100, import the services selection that is used to confirm current preservation food by input media 22.At this moment, the food control information that microprocessor 30 is read by memory storage 24 storages is presented on the display device 25.
At this moment, behind the microprocessor 30 reading food management information, time set 23 is obtained the current time (date with and/or time) during from day, calculate the thing of suffering from indigestion the preservation fate, be presented on the display device 25.This preservation fate is to calculate by the mode of " current time-preservation start time ".
In addition, microprocessor 30 is in order to allow the user easily confirm the product of suffering from indigestion, and can preserve the start time with it and be as the criterion, shows food preservation information, or be as the criterion with the remaining date and to show food preservation information.Particularly, 30 pairs of microprocessors do not comprise the thing food preservation information of suffering from indigestion of valid period, and can be as the criterion with the preservation start time to show.
In addition, microprocessor 30 utilizes the pot-life of storage and the date saved of calculating, under user's selection or automatically provide the pot-life of the product of suffering from indigestion to inform service.This service of informing can be after microprocessor 30 calculates the current remaining pot-life, if less than certain time limit with interior, then in order to inform this situation, to show (the literal demonstrations of warning note by display device 25, utilize the demonstration of icon, alarm tone by loudspeaker (figure slightly)), inform the user.Such as, the remaining pot-life, microprocessor 30 can begin to show the alarm note when being 3 days.In addition, the alarm note of demonstration can reduce, show with different alarm notes along with its remaining pot-life, allows the user be more prone to discover with this.Here, alarm note is stored in the memory storage 24.In addition, microprocessor 30 also can show the expired thing alarm note of suffering from indigestion by display device 25.Here, above-mentioned alarm short message service is only limited to the product of suffering from indigestion that input has the pot-life.
As mentioned above, the user is by the container information that is kept at the RFID special container in the refrigerator 100, the management service that obtains the thing of suffering from indigestion, afterwards, and when the user removes the preservation of the thing of suffering from indigestion, need delete the information of the corresponding thing of suffering from indigestion from food control information.At this moment, microprocessor 30 shows the thing food control information of suffering from indigestion of current preservation by display device 25, receive the institute's principle of suffering from indigestion newspaper of the needs deletion of user's selection by input media 22, from suffer from indigestion relevant information (the container information of product of these institutes of memory storage 23 deletion, preserve beginning day, preserve fate, whether pot-life and alarm short message service are selected etc.).Perhaps, microprocessor 30 is read the container information that the food that needs the releasing preservation state is put the RFID special container by RFID reading device 21, allows the user pass through input media 22 input preservation states and removes order.At this moment, microprocessor 30 is deleted the food control information corresponding with the container information of RFID special container after receiving and preserving the releasing order.After the deletion, microprocessor 30 is presented at the food control information of the current remaining RFID special container of putting the thing of suffering from indigestion to some extent on the display device 25.
Fig. 4 is the RFID special container and preserves the food synoptic diagram.
As shown in the figure, RFID special container 40 has inside of food space 40a such as can putting milk box 50, and its outside surface is being pasted RFID label 41.This RFID label 41 can be opened, and can use on other reservoir vessels.
Particularly, RFID special container 40 has the open structure of end face so that suffering from indigestion product are put from upside, is made of the tabular fixed part 40b that encircles the product peripheral part of suffering from indigestion more than two.
Here, each fixed part 40b is formed by common materials such as plastic material.
Certainly, RFID label 41 sticks on some among each fixed part 40b of RFID special container 40, is exposed on the external, can allows the user easily sticking on RFID label 41 on the special container 40 near RFID reading devices 21.
In addition, in order to allow the user discern the special container corresponding 40 with container information, on some in each fixed part 40b of RFID special container 40, form identification marking (such as, numeral, color, literal etc.) 42.
Here, preserve food and can be the food that taste such as oil product or quality and pot-life are closely related, certain product of suffering from indigestion of also can the person of being to use selecting.
Fig. 5 is food control information one embodiment.
As shown in the figure, the food control information that shows of display device 25 comprise the RFID special container of putting the product of suffering from indigestion to some extent container information (such as, identifier), preserve beginning day, preservation fate, pot-life.Here, can append the relevant demonstration that the product of suffering from indigestion of alarm note need be provided.In addition, as shown in the figure, if there is expired food, microprocessor 30 can show the time that it is expired together.
Claims (10)
1. food magnagementregeratorutilizing that utilizes RFID, include: input media, time set, memory storage, display device, control device and supply unit, it is characterized in that: it comprises wherein can put food, and outside surface is being pasted the RFID special container of wireless identification label and from the RFID reading device of RFID special container container read intelligence; The user imports the input media of preserving beginning or delete command, pot-life and informing services request; Time set during day of calculating container information time for reading; The memory storage of food storage management information, management service; The demonstration food control is served the display device of various pictures and food control information; Power supply device; To be stored in the product of suffering from indigestion in the refrigerator in order managing, to obtain said vesse information from above-mentioned RFID reading device with above-mentioned RFID special container, said vesse information as the control device-microprocessor of food control information storage at above-mentioned memory storage.
2. the food magnagementregeratorutilizing that utilizes RFID according to claim 1, it is characterized in that: time set when above-mentioned refrigerator comprises the day of calculating said vesse information time for reading, above-mentioned control device will be obtained time for reading by time set when above-mentioned day, as preservation start time of the above-mentioned product of suffering from indigestion, be included in the above-mentioned food control information, import and be stored in above-mentioned memory storage.
3. the food magnagementregeratorutilizing that utilizes RFID according to claim 2, it is characterized in that: above-mentioned refrigerator comprises and is used for the input media that the user imports the above-mentioned product pot-life of suffering from indigestion, and above-mentioned control device is included in the pot-life that receives from above-mentioned input media the above-mentioned food control information, is input to memory storage and stores.
4. the food magnagementregeratorutilizing that utilizes RFID according to claim 3, it is characterized in that: above-mentioned control device receives the relevant above-mentioned product of suffering from indigestion under user's operation, by above-mentioned input media pot-life is informed services request, and it is included in the above-mentioned food control information, imports memory storage and store.
5. the food magnagementregeratorutilizing that utilizes RFID according to claim 1, it is characterized in that: above-mentioned refrigerator comprises the display device that shows above-mentioned food control information to the user, after above-mentioned control device reads above-mentioned food control information, calculate the preservation fate of the above-mentioned product of suffering from indigestion, input on the above-mentioned display device and show.
6. the food magnagementregeratorutilizing that utilizes RFID according to claim 5, it is characterized in that: above-mentioned control device reads the food control information that comprises above-mentioned pot-life notification service, the certain period before finishing from above-mentioned pot-life, transports to above-mentioned display device and shows certain warning note.
7. according to the described food magnagementregeratorutilizing that utilizes RFID of one of claim 1-4, it is characterized in that: above-mentioned control device is stored in the input of said vesse information in the above-mentioned memory storage according to the preservation initiation command that is sent by the user from above-mentioned input media input.
8. the food magnagementregeratorutilizing that utilizes RFID according to claim 8, it is characterized in that: above-mentioned control device is removed order according to the preservation state that is sent by the user that receives from above-mentioned input media, takes out from above-mentioned memory storage and deletion said vesse information.
9. the food magnagementregeratorutilizing that utilizes RFID according to claim 1 is characterized in that: above-mentioned RFID reading device is arranged on outside, refrigerator front, comprises characteristic frequency generating apparatus, dispensing device and receiving trap.
10. the food magnagementregeratorutilizing that utilizes RFID according to claim 1, it is characterized in that: above-mentioned RFID special container be have end face open, put the hollow container of certain food by what encircle more than two that tabular fixed part around the food constitutes from upside, made by plastic or other material, its outside surface near the RFID reading device is being pasted RFID label and identification marking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100136632A CN101071411A (en) | 2006-05-12 | 2006-05-12 | Food magnagementregerator utilizing RFID |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100136632A CN101071411A (en) | 2006-05-12 | 2006-05-12 | Food magnagementregerator utilizing RFID |
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| CN101071411A true CN101071411A (en) | 2007-11-14 |
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| CNA2006100136632A Pending CN101071411A (en) | 2006-05-12 | 2006-05-12 | Food magnagementregerator utilizing RFID |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923737A (en) * | 2009-06-12 | 2010-12-22 | 上海英孚思为软件科技有限公司 | Station control system and station controller |
| CN101986069A (en) * | 2010-11-05 | 2011-03-16 | 屈世虎 | Intelligent refrigerator |
| CN102519215A (en) * | 2011-12-07 | 2012-06-27 | 海尔集团公司 | Control device and method for automatically prompting to clean refrigerator |
| CN102767935A (en) * | 2012-07-31 | 2012-11-07 | 合肥美菱股份有限公司 | Food management system and food management method for refrigerator |
| CN103791687A (en) * | 2014-02-25 | 2014-05-14 | 四川长虹电器股份有限公司 | Food management method and refrigerator |
| CN108025871A (en) * | 2016-07-22 | 2018-05-11 | 株式会社日立制作所 | House the inventory management system and inventory management method in storehouse |
| CN108759294A (en) * | 2018-07-14 | 2018-11-06 | 王长贵 | A kind of refrigerator intelligent recognition and management system |
| CN109297244A (en) * | 2018-09-13 | 2019-02-01 | 四川长虹电器股份有限公司 | A kind of novel intelligent refrigerator food management method |
| CN111336747A (en) * | 2020-03-23 | 2020-06-26 | 海信（山东）冰箱有限公司 | Refrigerator and information management method thereof |
| CN112009933A (en) * | 2015-04-28 | 2020-12-01 | 佐藤控股株式会社 | Storage vault |
| CN113915842A (en) * | 2021-10-20 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and food material monitoring method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923737A (en) * | 2009-06-12 | 2010-12-22 | 上海英孚思为软件科技有限公司 | Station control system and station controller |
| CN101986069A (en) * | 2010-11-05 | 2011-03-16 | 屈世虎 | Intelligent refrigerator |
| CN101986069B (en) * | 2010-11-05 | 2013-01-02 | 屈世虎 | Intelligent refrigerator |
| CN102519215A (en) * | 2011-12-07 | 2012-06-27 | 海尔集团公司 | Control device and method for automatically prompting to clean refrigerator |
| CN102767935A (en) * | 2012-07-31 | 2012-11-07 | 合肥美菱股份有限公司 | Food management system and food management method for refrigerator |
| CN103791687A (en) * | 2014-02-25 | 2014-05-14 | 四川长虹电器股份有限公司 | Food management method and refrigerator |
| CN103791687B (en) * | 2014-02-25 | 2016-01-13 | 四川长虹电器股份有限公司 | A kind of food management method and refrigerator |
| CN112009933A (en) * | 2015-04-28 | 2020-12-01 | 佐藤控股株式会社 | Storage vault |
| CN112009933B (en) * | 2015-04-28 | 2022-04-19 | 佐藤控股株式会社 | Storage vault |
| CN108025871A (en) * | 2016-07-22 | 2018-05-11 | 株式会社日立制作所 | House the inventory management system and inventory management method in storehouse |
| CN108025871B (en) * | 2016-07-22 | 2021-02-26 | 株式会社日立制作所 | Inventory management system and inventory management method for storage |
| CN108759294A (en) * | 2018-07-14 | 2018-11-06 | 王长贵 | A kind of refrigerator intelligent recognition and management system |
| CN109297244A (en) * | 2018-09-13 | 2019-02-01 | 四川长虹电器股份有限公司 | A kind of novel intelligent refrigerator food management method |
| CN109297244B (en) * | 2018-09-13 | 2020-09-29 | 四川长虹电器股份有限公司 | Novel intelligent refrigerator food material management method |
| CN111336747A (en) * | 2020-03-23 | 2020-06-26 | 海信（山东）冰箱有限公司 | Refrigerator and information management method thereof |
| CN113915842A (en) * | 2021-10-20 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and food material monitoring method thereof |
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