CN105894057A - Method for identifying foods in refrigerator and refrigerator - Google Patents
Method for identifying foods in refrigerator and refrigerator Download PDFInfo
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- CN105894057A CN105894057A CN201610185063.8A CN201610185063A CN105894057A CN 105894057 A CN105894057 A CN 105894057A CN 201610185063 A CN201610185063 A CN 201610185063A CN 105894057 A CN105894057 A CN 105894057A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a method for identifying foods in a refrigerator and the refrigerator. The method includes determining whether the door body of the refrigerator is closed after being opened, if yes, detecting the stacking level of foods in the refrigerator body corresponding to the door body, determining the starting amplification gain of a radio frequency antenna in the refrigerator body corresponding to the door body based on the stacking level of foods, controlling the radio frequency antenna in the refrigerator body corresponding to the door body to be started according to the amplification gain, controlling reading the label information on the foods in the refrigerator body corresponding to the door body, and managing the foods in the refrigerator body corresponding to the door body based on the label information. The amplification gain of a radio frequency power amplifier is adjusted according to the stacking level of foods in the refrigerator body. The amplification gain of the radio frequency power amplifier is increased to increase the emission power of the radio frequency antenna when the stacking level of foods is high, thereby solving the technical problem that labels can not be identified when foods in the refrigerator are piled up or in a mess.
Description
Technical field
The invention belongs to refrigerator food management technique field, specifically, relate to food recognition methods and refrigerator in a kind of refrigerator.
Background technology
The management of food in refrigerator, in a broad sense, can be divided into food identification, freshness management, preserve the aspects such as prompting, and premise is that food control and identify there is which food in refrigerator.
In prior art, for food recognition method in refrigerator predominantly: on food, attach Quick Response Code or the label of bar code, the various information for food control needs are included in label, then obtain label information by the method for tag recognition, realize the management to food according to the label information obtained.The recognition methods of label is: or in refrigerator body, place code reader, and when putting into food, the label on food is completed scanning near code reader and places into casing by user；Or before user puts into food, the recording device provided based on refrigerator will manage the Data Enter refrigerator that food is correlated with by the way of voice or words input.But above-mentioned food recognition method, needs user manually to participate in, complex operation and time-consuming, reduce user experience.In order to user is freed from operation, in prior art, occur in and RFID(Radio Frequency Identification be installed in refrigerator body) read write line and the food recognition method of radio-frequency antenna, in refrigerator after the mode food with label, radio-frequency antenna sends radiofrequency signal and activates label so that rfid interrogator can read label information.
But this radio-frequency antenna and the rfid interrogator installed in refrigerator body obtains the mode of label information, there is following technical problem: if the food in casing is placed more, some label is blocked by other food, or food is placed and is made label be pushed down by self in a jumble, especially frozen food, then due to the transmitting power limited of radio-frequency antenna, it is possible that tag recognition less than technical problem.
Summary of the invention
This application provides food recognition methods and refrigerator in a kind of refrigerator, solve in prior art food in refrigerator pile up more or mixed and disorderly time exist and identify the technical problem less than label.
For solving above-mentioned technical problem, the application is achieved by the following technical solutions:
Food recognition methods in a kind of refrigerator is proposed, including: judge whether refrigerator door closes after unlatching；If so, detect the food in described refrigerator door correspondence casing and pile up degree；Degree piled up by food based on detection, it is judged that the gain amplifier that the radio-frequency antenna in described refrigerator door correspondence casing is opened；The radio-frequency antenna controlled in described refrigerator door correspondence casing is opened according to described gain amplifier；Control to read the label information on the food in described refrigerator door correspondence casing；The food in described refrigerator door correspondence casing is managed based on described label information.
Further, before judging whether refrigerator door closes after unlatching, described method also includes: according to kind and/or the capacity of described corresponding casing, intensity grade piled up by the food divided in described corresponding casing；Pile up intensity grade for each food, be determined to read the gain amplifier that the radio-frequency antenna of food labelling information is opened.
Further, when the radio-frequency antenna controlled in described refrigerator door correspondence casing is opened according to described gain amplifier, described method also includes: the radio-frequency antenna controlled in the refrigerator body outside described corresponding casing remains turned-off.
Proposing a kind of refrigerator, including multiple casings, each casing has refrigerator door；Also include: radio-frequency antenna, RF transceiver, read-write controller and refrigerator controller；A radio-frequency antenna it is fitted with in each casing of described refrigerator；Described refrigerator also includes multiselect one radio-frequency (RF) switch that food product degree detection device is connected and the radio-frequency (RF) power amplification being connected with described multiselect one radio-frequency (RF) switch with the radio-frequency antenna in all casings；Described refrigerator controller, judge whether refrigerator door closes after unlatching, if, control the food accumulation degree that described food product degree detection device detects in described refrigerator door correspondence casing, and pile up degree based on the food detected, it is judged that the gain amplifier that the radio-frequency antenna in described corresponding casing is opened；The request signal that the tag information request on food in described corresponding casing is read is sent to described read-write controller；Wherein, described request signal includes read requests, the close passage mark of multiselect one radio-frequency (RF) switch and the gain amplifier of described radio-frequency (RF) power amplification；Described read-write controller, after receiving described request signal, control described radio-frequency (RF) power amplification to adjust to described gain amplifier, control the passage Guan Bi of radio-frequency antenna in the corresponding described corresponding casing of described multiselect one radio-frequency (RF) switch so that the radio-frequency antenna in described corresponding casing is opened according to described gain amplifier；And control RF transceiver transmission radio frequency read requests signal；Described RF transceiver, after sending described radio frequency read requests signal, reads the label information on the food in described corresponding casing, and sends described label information to described read-write controller；Described read-write controller, sends described label information to described refrigerator controller so that described refrigerator controller is based on the food in the described corresponding casing of described label information management；
Further, memory element is included in described refrigerator controller；Described refrigerator controller, it is additionally operable to before judging whether refrigerator door correspondence casing closes after unlatching, kind and/or capacity according to described corresponding casing, intensity grade piled up by the food divided in described corresponding casing, intensity grade is piled up according to food, divide in intensity grade piled up by each food the gain amplifier of the radio-frequency antenna that can read food labelling information, and the corresponding relation that food is piled up intensity grade and radio-frequency antenna unlatching gain amplifier is stored in described memory element；Then degree piled up by described food based on detection, judge the gain amplifier that the radio-frequency antenna in described corresponding casing is opened, particularly as follows: described refrigerator controller reads food from described memory element piles up the corresponding relation of intensity grade and radio-frequency antenna unlatching gain amplifier, and the gain amplifier that the radio-frequency antenna judged in described corresponding casing based on described corresponding relation is opened.
Further, the top center position in the radio-frequency antenna in each refrigerator door correspondence casing is positioned over described corresponding casing.
Further, described read-write controller, when controlling the passage Guan Bi of radio-frequency antenna in the corresponding described corresponding casing of described multiselect one radio-frequency (RF) switch, also controls described multiselect one radio-frequency (RF) switch passage in addition to the passage of radio-frequency antenna in the described corresponding casing of correspondence and disconnects.
Further, described label information was being sent before described refrigerator controller by described read-write controller, verified described label information the most correct, the most then send described label information to described refrigerator controller；If it is not, the most again control RF transceiver to send radio frequency read requests signal.
Compared with prior art, advantage and the good effect of the application be: in the refrigerator that the application proposes in food recognition methods and refrigerator, close again as triggering signal using the unlatching of refrigerator door, after a refrigerator door of refrigerator opens closedown again, detect the food in this casing and pile up degree, difference according to the degree of accumulation, control radio-frequency antenna open according to corresponding gain amplifier and launch radiofrequency signal, an energy part for radiofrequency signal activates the label on food, a part is used for obtaining label information and is sent to radio-frequency antenna, after refrigerator controller gets label information, label information according to obtaining manages the food in this casing, the such as management to effective period of food quality, management to food quantity etc..
The casing of refrigerator, such as refrigerated cabinet, freezer box, fresh-keeping casing etc., radio-frequency antenna is each installed in each casing, all of radio-frequency antenna is connected to multiselect one radio-frequency (RF) switch, make can work alone between each radio-frequency antenna, after the refrigerator door of casing opens closedown again, there is user and take or put into the possibility of food away, then close door body for triggering signal with this, control the passage Guan Bi of Guan Bi multiselect one radio-frequency (RF) switch radio-frequency antenna to installing in casing, make the radio-frequency antenna unlatching work in this casing, and what the passage of multiselect one radio-frequency (RF) switch corresponding to other radio-frequency antennas being not turned in the casing closed was off, namely the radio-frequency antenna in other casings is that closedown is idle；The radio-frequency antenna of all casings is all connected with radio-frequency (RF) power amplification by multiselect one radio-frequency (RF) switch, before radio-frequency antenna in this casing is opened, first refrigerator controller controls food and piles up degree detection device and detect the accumulation degree of food in this casing, accumulation degree is different, then the gain amplifier of radio-frequency (RF) power amplification is different, the transmitting power of radio-frequency antenna is also the most different, when food is piled up degree height or pushes mixed and disorderly, there is label to be blocked by other food, or food self label is forced into the rightabout situation of radio-frequency antenna, the most in this case, the gain amplifier that radio-frequency (RF) power amplification is arranged wants height, the transmitting power making radio-frequency antenna is big, it is thus possible to the label of all food can be identified in guard box body；On the contrary, degree hour piled up by food, it is low that radio-frequency (RF) power amplification arranges gain amplifier, the transmitting power making radio-frequency antenna is little, this mode that can change radio-frequency antenna transmitting power according to food accumulation degree, ensure that the label on the food in casing can be identified, solve in prior art food in refrigerator pile up more or mixed and disorderly time exist and identify the technical problem less than label.
In the application, independent radio-frequency antenna is installed in each casing of refrigerator, all radio-frequency antennas are connected to same RF transceiver and read-write controller by multiselect one radio-frequency (RF) switch, this, compared to installing radio-frequency antenna, RF transceiver and read write line controller in prior art in each casing, reduces the manufacturing cost for food labelling identification in refrigerator.
In the application, close again as triggering signal using the unlatching of refrigerator door so that radio-frequency antenna just starts work after refrigerator door is closed, and this is avoided that the label reading the food outside casing, it is ensured that the effectiveness of food control and accuracy.
After reading in conjunction with the accompanying the detailed description of the application embodiment, other features of the application and advantage will become clearer from.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of food identification in the refrigerator that the application proposes；
Fig. 2 is that the refrigerator that the application proposes realizes food identification part gate circuit Organization Chart.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the application is described in more detail.
Food recognition methods in the refrigerator that the application proposes, as it is shown in figure 1, comprise the following steps:
Step S11: judge whether refrigerator door closes after unlatching.
One refrigerator comprises multiple casing, such as freezer box, refrigerated cabinet, fresh-keeping casing etc., and each casing has independent refrigerator door.When user places or takes out food in a casing, it is required for opening the refrigerator door of this casing, inserts or take out food, be then shut off the refrigerator door of this casing.This makes the food quantity in this casing change, and now, refrigerator needs that food information re-starts reading could realize the purpose to food control.
In the application, close as triggering signal after opening using refrigerator door, after producing this triggering signal, start food recognizer.
Step S12: detect the food in this refrigerator door correspondence casing and pile up degree.
Detection mode can pile up any means of situation according to obtaining food in casing in prior art, such as, obtain picture or video in casing by photographic head, and judge food accumulation degree by image procossing；Or such as, obtain food accumulation degree etc. by sensor.
Step S13: degree piled up by food based on detection, it is judged that the gain amplifier that the radio-frequency antenna in this refrigerator door correspondence casing is opened.
In the application, degree difference piled up by food, and the gain amplifier that radio-frequency antenna is opened is the most different；Here gain amplifier is not limited to just amplify, and also includes negative amplification, namely situation about reducing.Pile up more or when piling up mixed and disorderly at food, the label of the food being placed on lower floor can be placed on the food on upper strata and block, or the label of food self is crushed on the bottom of radio-frequency antenna dorsad, the most now, need to increase the gain amplifier of radio-frequency antenna, can be identified to the label of food all in meeting casing；When food is piled up less or when piling up specification, the gain amplifier of radio-frequency antenna can be reduced, it is ensured that the food labelling in casing can be identified to.
That is, for a casing, before step S11, need the kind according to corresponding casing and/or volume, divide the food in this correspondence casing and pile up grade, and pile up intensity grade for each food, be determined to read the gain amplifier that the radio-frequency antenna of food labelling information is opened.As a example by freezer box, it it is all the feature of frozen food according to food in freezer box, and combine the volume size of casing, food can be piled up intensity grade and be divided into N level, N is positive integer, and as a example by 3 grades, the gain amplifier of corresponding radio-frequency antenna is also set to 3 grades, first degree gain amplifier is minimum, and during to have less frozen food in meeting freezer box, label can be identified to as standard；The gain amplifier of intergrade is compared first degree gain amplifier and has been increased, and during to meet the frozen food placing approximate volume half volume in freezer box, label can be identified to as standard；And five-star gain amplifier is the highest, during to fill up frozen food in meeting freezer box, all food labellings can be identified to as standard.
Step S14: the radio-frequency antenna controlled in this refrigerator door correspondence casing is opened according to the gain amplifier judged.
Step S15: control to read the label information on the food in this refrigerator door correspondence casing.
Judging in this casing after food product intensity grade, correspondence inquires the gain amplifier of this grade radio-frequency antenna to be opened, control to open the radio-frequency antenna in this casing according to this gain amplifier, radio-frequency antenna launches radio frequency energy, a part is for activating the label on food, and a part is for reading the information on label.
In the application, the radio-frequency antenna in each casing is to close as default conditions, and the radio-frequency antenna in a casing is because door body is opened when closing again and open, and other casings, such as refrigerated cabinet, fresh-keeping casing etc., interior radio-frequency antenna then can remain turned-off.
Step S16: manage the food in this refrigerator door correspondence casing based on label information.
After obtaining label information, can require to be managed food in casing according to the food control of any one demand in prior art, it will not go into details for the application.
Based on food recognition methods in refrigerator set forth above, the application also proposes a kind of refrigerator, and this refrigerator includes that multiple casing, each casing have refrigerator door；As in figure 2 it is shown, also include radio-frequency antenna 21, RF transceiver 22, read-write controller 23, food product degree detection device 24, refrigerator controller 25；Wherein, radio-frequency antenna 21 is multiple, is fitted with one in each casing of refrigerator, is connected with the radio-frequency antenna in all casings and has multiselect one radio-frequency (RF) switch 26, and the radio-frequency (RF) power amplification 28 being connected with multiselect one radio-frequency (RF) switch 27.
Refrigerator controller 25 judges whether refrigerator door closes after unlatching, if, control the food accumulation degree that food product degree detection device 24 detects in refrigerator door correspondence casing, and degree piled up by food based on detection, it is judged that the gain amplifier that the radio-frequency antenna 21 in this correspondence casing is opened；The request signal that the tag information request on food in this correspondence casing is read is sent to read-write controller 23；Wherein, request signal includes read requests, the close passage mark of multiselect one radio-frequency (RF) switch and the gain amplifier of radio-frequency (RF) power amplification.
After read-write controller 23 receives request signal, control radio-frequency (RF) power amplification 27 and adjust to this gain amplifier, control multiselect one radio-frequency (RF) switch 26 to should the passage Guan Bi of radio-frequency antenna in corresponding casing so that the radio-frequency antenna 21 in this correspondence casing is opened according to this gain amplifier；And control RF transceiver 22 sends radio frequency read requests signal；RF transceiver 22, after sending radio frequency read requests signal, reads the label information on the food in corresponding casing, and sends label information to read-write controller 23；Label information is sent to refrigerator controller 25 by read-write controller 23 so that refrigerator controller 25 manages the food in this correspondence casing based on label information.
Memory element 251 is included in the refrigerator controller 25 that the application proposes；Refrigerator controller 25 is before judging whether refrigerator door correspondence casing closes after unlatching, kind and/or capacity according to this correspondence casing, divide the food in this correspondence casing and pile up intensity grade, intensity grade is piled up according to food, divide in intensity grade piled up by each food the gain amplifier of the radio-frequency antenna that can read food labelling information, and the corresponding relation that food is piled up intensity grade and radio-frequency antenna unlatching gain amplifier is stored in memory element 251；In like manner, the corresponding relation that the food accumulation intensity grade of all casings of refrigerator and radio frequency open gain amplifier is all stored in this memory element 251.
Then degree piled up by food based on detection, judge the gain amplifier that the radio-frequency antenna in this correspondence casing is opened, particularly as follows: refrigerator controller 25 reads food from memory element 251 piles up the corresponding relation of intensity grade and radio-frequency antenna unlatching gain amplifier, and the gain amplifier that the radio-frequency antenna judged in corresponding casing based on corresponding relation is opened.
In the application, radio-frequency antenna is positioned over the top center position in casing, is all beam antenna, and operating frequency covers 840MHZ-960MHZ.After detecting that refrigerator door opens closedown again, the radio-frequency antenna triggered in casing is opened with corresponding gain amplifier, now the label on the food outside casing is blocked by the shell of refrigerator, owing to the inside of outcase of refrigerator is all plastics, outside is steel plate, therefore, the radiofrequency signal of uhf band runs into metal and can be absorbed, thus without the food labelling misread outside casing.
Read-write controller 23 control multiselect one radio-frequency (RF) switch 26 to should the passage Guan Bi of radio-frequency antenna in refrigerator door correspondence casing time, also control multiselect one radio-frequency (RF) switch except to passage in addition to the passage of radio-frequency antenna disconnecting in corresponding casing, play the effect of saving power consumption.
Label information was being sent before refrigerator controller 25 by read-write controller 23, and verification label information is the most correct, the most then send label information to refrigerator controller 25；If it is not, the most again control RF transceiver to send radio frequency read requests signal.Here method of calibration uses any one method of calibration of prior art, and the embodiment of the present application not limits.
The method of the refrigerator identification food labelling that above-mentioned the application proposes, describes in detail in food recognition methods in refrigerator, and it will not go into details herein.
Food recognition methods and refrigerator in the refrigerator that above-mentioned the application proposes, close again as triggering signal using the unlatching of refrigerator door, in multiple casings of refrigerator, the refrigerator door of one of them casing is opened after closing again, detect the food in this casing and pile up degree, difference according to the degree of accumulation, control radio-frequency antenna open according to corresponding gain amplifier and launch radiofrequency signal, an energy part for radiofrequency signal activates the label on food, a part is used for obtaining label information and is sent to radio-frequency antenna, after refrigerator controller gets label information, label information according to obtaining manages the food in this casing.
Radio-frequency antenna is each installed in each casing, all of radio-frequency antenna is connected to multiselect one radio-frequency (RF) switch, make can work alone between each radio-frequency antenna, after the refrigerator door of casing opens closedown again, there is user and take or put into the possibility of food away, then close door body for triggering signal with this, control the passage Guan Bi of Guan Bi multiselect one radio-frequency (RF) switch radio-frequency antenna to installing in casing, make the radio-frequency antenna unlatching work in this casing, and what the passage of multiselect one radio-frequency (RF) switch corresponding to other radio-frequency antennas being not turned in the casing closed was off, making the radio-frequency antenna in other casings is that closedown is idle；The radio-frequency antenna of all casings is all connected with radio-frequency (RF) power amplification by multiselect one radio-frequency (RF) switch, before radio-frequency antenna in this casing is opened, first refrigerator controller controls food and piles up degree detection device and detect the accumulation degree of food in this casing, the difference of degree is piled up according to food, adjust the gain amplifier of radio-frequency (RF) power amplification, the transmitting power making radio-frequency antenna is different, when food is piled up degree height or pushes mixed and disorderly, the gain amplifier that radio-frequency (RF) power amplification is arranged wants height, the transmitting power making radio-frequency antenna is big, it is thus possible to the label of all food can be identified in guard box body；On the contrary, degree hour piled up by food, it is low that radio-frequency (RF) power amplification arranges gain amplifier, the transmitting power making radio-frequency antenna is little, this mode that can change radio-frequency antenna transmitting power according to food accumulation degree, ensure that the label on the food in casing can be identified, solve in prior art food in refrigerator pile up more or mixed and disorderly time exist and identify the technical problem less than label.
And, in the application, independent radio-frequency antenna is installed in each casing of refrigerator, all of radio-frequency antenna is connected to same RF transceiver and read-write controller by multiselect one radio-frequency (RF) switch, namely, one refrigerator has only to configure a RF transceiver and a read-write controller, compared to installing radio-frequency antenna, RF transceiver and read-write controller in prior art in each casing, effectively reduces the manufacturing cost for food labelling identification in refrigerator.
It should be noted that; described above is not limitation of the present invention; the present invention is also not limited to the example above, change that those skilled in the art are made in the essential scope of the present invention, retrofits, adds or replaces, and also should belong to protection scope of the present invention.
Claims (8)
1. food recognition methods in refrigerator, it is characterised in that including:
Judge whether refrigerator door closes after unlatching；If so,
Detect the food in described refrigerator door correspondence casing and pile up degree；
Degree piled up by food based on detection, it is judged that the gain amplifier that the radio-frequency antenna in described refrigerator door correspondence casing is opened；
The radio-frequency antenna controlled in described refrigerator door correspondence casing is opened according to described gain amplifier；
Control to read the label information on the food in described refrigerator door correspondence casing；
The food in described refrigerator door correspondence casing is managed based on described label information.
Food recognition methods in refrigerator the most according to claim 1, it is characterised in that before judging whether refrigerator door closes after unlatching, described method also includes:
According to kind and/or the capacity of described corresponding casing, intensity grade piled up by the food divided in described corresponding casing；
Pile up intensity grade for each food, be determined to read the gain amplifier that the radio-frequency antenna of food labelling information is opened.
Food recognition methods in refrigerator the most according to claim 1, it is characterised in that when the radio-frequency antenna controlled in described refrigerator door correspondence casing is opened according to described gain amplifier, described method also includes:
The radio-frequency antenna controlled in the refrigerator body outside described corresponding casing remains turned-off.
4. a refrigerator, including multiple casings, each casing has refrigerator door；Also include: radio-frequency antenna, RF transceiver, read-write controller and refrigerator controller；It is characterized in that, in each casing of described refrigerator, be fitted with a radio-frequency antenna；Described refrigerator also includes multiselect one radio-frequency (RF) switch that food product degree detection device is connected and the radio-frequency (RF) power amplification being connected with described multiselect one radio-frequency (RF) switch with the radio-frequency antenna in all casings；
Described refrigerator controller, judge whether refrigerator door closes after unlatching, if, control the food accumulation degree that described food product degree detection device detects in described refrigerator door correspondence casing, and pile up degree based on the food detected, it is judged that the gain amplifier that the radio-frequency antenna in described corresponding casing is opened；The request signal that the tag information request on food in described corresponding casing is read is sent to described read-write controller；Wherein, described request signal includes read requests, the close passage mark of multiselect one radio-frequency (RF) switch and the gain amplifier of described radio-frequency (RF) power amplification；
Described read-write controller, after receiving described request signal, control described radio-frequency (RF) power amplification to adjust to described gain amplifier, control the passage Guan Bi of radio-frequency antenna in the corresponding described corresponding casing of described multiselect one radio-frequency (RF) switch so that the radio-frequency antenna in described corresponding casing is opened according to described gain amplifier；And control RF transceiver transmission radio frequency read requests signal；
Described RF transceiver, after sending described radio frequency read requests signal, reads the label information on the food in described corresponding casing, and sends described label information to described read-write controller；
Described read-write controller, sends described label information to described refrigerator controller so that described refrigerator controller is based on the food in the described corresponding casing of described label information management.
Refrigerator the most according to claim 4, it is characterised in that include memory element in described refrigerator controller；
Described refrigerator controller, it is additionally operable to before judging whether refrigerator door correspondence casing closes after unlatching, kind and/or capacity according to described corresponding casing, intensity grade piled up by the food divided in described corresponding casing, intensity grade is piled up according to food, divide in intensity grade piled up by each food the gain amplifier of the radio-frequency antenna that can read food labelling information, and the corresponding relation that food is piled up intensity grade and radio-frequency antenna unlatching gain amplifier is stored in described memory element；
Then degree piled up by described food based on detection, it is judged that the gain amplifier that the radio-frequency antenna in described corresponding casing is opened, particularly as follows:
Described refrigerator controller reads food from described memory element and piles up the corresponding relation of intensity grade and radio-frequency antenna unlatching gain amplifier, and the gain amplifier that the radio-frequency antenna judged in described corresponding casing based on described corresponding relation is opened.
Refrigerator the most according to claim 4, it is characterised in that the radio-frequency antenna in each refrigerator door correspondence casing is positioned over the top center position in described corresponding casing.
Refrigerator the most according to claim 4, it is characterized in that, described read-write controller, when controlling the passage Guan Bi of radio-frequency antenna in the corresponding described corresponding casing of described multiselect one radio-frequency (RF) switch, also controls described multiselect one radio-frequency (RF) switch passage in addition to the passage of radio-frequency antenna in the described corresponding casing of correspondence and disconnects.
Refrigerator the most according to claim 4, it is characterised in that described label information was being sent before described refrigerator controller by described read-write controller, verified described label information the most correct, the most then send described label information to described refrigerator controller；If it is not, the most again control RF transceiver to send radio frequency read requests signal.
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| CN201610185063.8A CN105894057A (en) | 2016-03-29 | 2016-03-29 | Method for identifying foods in refrigerator and refrigerator |
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| CN106568293A (en) * | 2016-10-14 | 2017-04-19 | 青岛海尔特种电冰箱有限公司 | Detection method for food operation of refrigerator, and refrigerator |
| CN106705564A (en) * | 2016-11-11 | 2017-05-24 | 青岛海尔特种电冰箱有限公司 | Refrigerator control method and refrigerator |
| CN113011538A (en) * | 2021-02-24 | 2021-06-22 | 海信视像科技股份有限公司 | Refrigerator and food material label scanning method |
| CN113915939A (en) * | 2021-03-25 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and food material management method |
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| KR20110070938A (en) * | 2009-12-19 | 2011-06-27 | 김경중 | Give away have data record tag |
| CN101806641A (en) * | 2010-03-18 | 2010-08-18 | 中兴通讯股份有限公司 | Device and method for realizing overheating prompt of mobile terminal |
| CN202453914U (en) * | 2011-12-14 | 2012-09-26 | 深圳日海通讯技术股份有限公司 | RFID (radio frequency identification) tag read-write device |
| CN104457130A (en) * | 2014-11-03 | 2015-03-25 | 广东奥马电器股份有限公司 | Intelligent refrigerator with RFID tag function |
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| CN106705564B (en) * | 2016-11-11 | 2019-04-02 | 青岛海尔特种电冰箱有限公司 | The control method and refrigerator of refrigerator |
| CN113011538A (en) * | 2021-02-24 | 2021-06-22 | 海信视像科技股份有限公司 | Refrigerator and food material label scanning method |
| CN113915939A (en) * | 2021-03-25 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and food material management method |
| CN113915939B (en) * | 2021-03-25 | 2023-04-18 | 海信冰箱有限公司 | Refrigerator and food material management method |
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