CN105841436B - The food control method and food management system of intelligent refrigerator - Google Patents
The food control method and food management system of intelligent refrigerator Download PDFInfo
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- CN105841436B CN105841436B CN201610377738.9A CN201610377738A CN105841436B CN 105841436 B CN105841436 B CN 105841436B CN 201610377738 A CN201610377738 A CN 201610377738A CN 105841436 B CN105841436 B CN 105841436B
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- food
- rfid label
- weight
- mobile rfid
- refrigerator
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2500/00—Problems to be solved
- F25D2500/06—Stock management
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/06—Sensors detecting the presence of a product
Abstract
Present invention discloses the food control methods and food management system of a kind of intelligent refrigerator.The food control method is comprising steps of identify the identification information of mobile RFID label, and synchronize the weight for detecting the refrigerator；The weight information of food corresponding to the mobile RFID label is obtained according to the variation of the weight；Judge the type of action of the mobile RFID label；The identification information, the weight information and the type of action are matched, to generate a food storing data.Compared with prior art, the present invention is by the detection to mobile RFID label, and the acquisition in conjunction with weighing and sensing module to weight information realizes the weight change and access status of real-time tracing certain food, can not only realize intelligent management；The case where can also be achieved and part taken out to same food or increases the Weight Watcher of part, such as taking out part bread from refrigerator, the or the case where taking-up of rice box is filled into rice, can with the withdrawal amount of intelligent decision bread or rice, fill into weight and remaining weight.
Description
Technical field
The present invention relates to the food control methods and food management system of a kind of intelligent refrigerator, belong to intelligent refrigerator technology neck
Domain.
Background technique
With the continuous development of society, smart home increasingly becomes an inevitable development trend of family life, refrigerator
The household appliances indispensable as family life, the intelligence of itself are also imperative.And with radio frequency identification
The research of (Radio Frequency Identification, abbreviation RFID) technology, RFID technique are also gradually applied to intelligence
It can refrigerator art.
RFID technique is a kind of communication technology, and specific objective can be identified by radio signals and reads and writes related data, and
Without establishing mechanical or optical contact between identifying system and specific objective.Its most important advantage is contactless identification, its energy
The adverse circumstances label reading that snow, mist, ice, coating, dust and dirt and bar code are not available is penetrated, and reading rate is exceedingly fast, greatly
In most cases less than 100 milliseconds.Therefore, RFID technique has huge application prospect in intelligent refrigerator, and can be to refrigerator
Intelligence bring unforeseen huge space.
It, can be right in production, transport, use process to realize by configuring RFID label tag on refrigerator in refrigerator field
The control of refrigerator；RFID reader can be also configured on refrigerator, configures RFID label tag on storage food, realize refrigerator to food
Intelligent management.Currently, although RFID technique has preliminary use in intelligent refrigerator field, it still has
Many technical problems urgently to be resolved.
Such as, refrigerator is managed using food of the RFID technique to storage at present, is also limited only to refresh refrigerator inside food
Object list is simultaneously shown on the display module.It can not accomplish the disengaging for really tracking and identifying food, it is even more impossible to accomplish to judge to use every time
The type and corresponding quantity/weight of food are taken in family, for example, taking the meat being stored in refrigerator during refrigerator open
Out after cutout, when placing into refrigerator, the prior art can not intelligent decision take out the meat of how much weight or there remains how many weight
The meat of amount is intelligent insufficient；And lack the real intelligent management to food, and then affect refrigerator and practise for the diet of user
The used effect for accomplishing intelligent prompting.The problem of can not judging food disengaging and tracking food access amount, does not solve, and will be unfavorable for
The development of the intelligence hommization of refrigerator.
Summary of the invention
It is at least to solve one of above-mentioned technical problem, the purpose of the present invention is to provide a kind of food controls of intelligent refrigerator
Method and food management system are, it can be achieved that deposit/taking-up of real-time tracing food and its weight change, with intelligent management food.
One of for achieving the above object, an embodiment of the present invention provides a kind of food control side of intelligent refrigerator
Method, the method includes the steps:
Identify the identification information of mobile RFID label, and the synchronous weight for detecting the refrigerator；
The weight information of food corresponding to the mobile RFID label is obtained according to the variation of the weight；
Judge the type of action of the mobile RFID label；
The identification information, the weight information and the type of action are matched, to generate a food storing data.
As the further improvement of an embodiment of the present invention, the step " identification information of identification mobile RFID label,
And the synchronous weight for detecting the refrigerator " include:
Acquire the signal strength of simultaneously tracking RFID label；
Judge whether the signal strength changes, if so, determining the RFID label tag for mobile RFID label；
Identify the identification information of the mobile RFID label, and the synchronous weight for detecting the refrigerator.
As the further improvement of an embodiment of the present invention, the step " judges the movement of the mobile RFID label
Type " includes:
The movement class of the mobile RFID label is judged according to the variation tendency of the signal strength of the mobile RFID label
Type.
As the further improvement of an embodiment of the present invention, the step " judges the movement of the mobile RFID label
Type " includes:
The type of action of the mobile RFID label is judged according to the variation of the weight；Wherein, if the weight of the refrigerator
Amount increases, then the type of action is deposit movement；If the weight of the refrigerator reduces, the type of action is to take out to move
Make.
As the further improvement of an embodiment of the present invention, the step " identification information of identification mobile RFID label,
And the synchronous weight for detecting the refrigerator " further comprise the steps of: before
The open signal for receiving refrigerator door, establishes intermediate database；
And the step " matches the identification information, the weight information and the type of action, to generate one
It is further comprised the steps of: after food storing data "
The food storing data is saved to the intermediate database；
The shutdown signal for receiving the refrigerator door exports the food storing data.
One of for achieving the above object, an embodiment of the present invention additionally provides a kind of food control of intelligent refrigerator
System, the food management system include:
RFID acquisition module, for identification identification information of mobile RFID label；
Weighing and sensing module, for acquiring the weight of refrigerator in real time；
Judgment module judges the type of action of the mobile RFID label for the variation according to the weight；
Data processing module obtains food corresponding to the mobile RFID label for the variation according to the weight
Weight information；And for matching the identification information, the weight information and the type of action, to generate a food
Storing data.
One of for achieving the above object, an embodiment of the present invention additionally provides a kind of food control of intelligent refrigerator
System, the food management system include:
RFID acquisition module, the identification information of mobile RFID label for identification, and for acquiring the movement in real time
The signal strength of RFID label tag；
Data analysis module, for analyzing the signal strength and obtaining the variation tendency of the signal strength；
Judgment module, for judging the type of action of the mobile RFID label according to the variation tendency；
Weighing and sensing module, for acquiring the weight of refrigerator in real time；
Data processing module obtains food corresponding to the mobile RFID label for the variation according to the weight
Weight information；And for matching the identification information, the weight information and the type of action, to generate a food
Storing data.
As the further improvement of an embodiment of the present invention, the RFID acquisition module, which is also used to acquire, is located at its sensing
The signal strength of all RFID label tags in range；
The judgment module is also used to judge whether the signal strength of the RFID label tag changes, if so, the judgement mould
Block determines that the RFID label tag is the mobile RFID label.
As the further improvement of an embodiment of the present invention, the food management system further includes memory module and output
Module, when the door body of the refrigerator is opened, the memory module establishes the mediant for storing the food storing data
According to library；
When the closing of the door body, the output module exports the food storing data.
As the further improvement of an embodiment of the present invention, the food management system further includes list update module,
The list update module is used to obtain the original food list in the refrigerator when the door body is opened；And for working as institute
The food storing data for receiving the output module output when door body is closed is stated, and is updated according to the food storing data
The original food list is to form current food list.
Compared with prior art, the present invention has following advantageous effects: passing through the real-time inspection to mobile RFID label
The acquisition to acquire identification information, in conjunction with weighing and sensing module to weight information is surveyed, realizes the weight of real-time tracing certain food
Variation and access status, can not only realize intelligent management；It can also be achieved and part is taken out to same food or increases the weight of part
Amount monitoring, such as the case where take out out of refrigerator part bread, or the case where the taking-up of rice box is filled into rice, it can be with intelligent decision
The withdrawal amount of bread or rice fills into weight and remaining weight.
Detailed description of the invention
Fig. 1 is the flow chart of the food control method of the intelligent refrigerator of an embodiment of the present invention；
Fig. 2 is the logical flow chart of the food control method of the intelligent refrigerator of a specific embodiment of the invention；
Fig. 3 is the schematic diagram of variation tendency pre-programmed curve when deposit acts in one embodiment of the invention；
Fig. 4 is the schematic diagram of variation tendency pre-programmed curve when taking-up acts in one embodiment of the invention；
Fig. 5 is the logical flow chart of the food control method of the intelligent refrigerator of another specific embodiment of the present invention；
Fig. 6 is the logical flow chart of the food control method of the intelligent refrigerator of still another embodiment of the present invention.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
It is to be appreciated that in the present specification, term " refrigerator " refers not only to the refrigerator that family uses, meaning should include being used for
Various by lower than refrigerating in a manner of room temperature or the equipment of freezen protective food, such as the refrigerator, large-scale freezer of transport, storage etc.
Deng.Term " food " also refers not only to product by processing and manufacturing or in market sale, but is suitable for including various with cold
The article of jelly, refrigeration or normal temperature environment and other ad hoc fashions storage.
Intelligent refrigerator of the invention is a kind of combined application of RFID technique and intelligent refrigerator.It can be stored in/is taken out
The food with RFID label tag sensed, counted, inquired, to realize to the intelligent management of food.
Referring to Fig. 1, an embodiment of the present invention provides a kind of food control method of intelligent refrigerator, the food control side
Method comprising steps of
Identify the identification information of mobile RFID label, and the synchronous weight for detecting the refrigerator；
The weight information of food corresponding to the mobile RFID label is obtained according to the variation of the weight；
Judge the type of action of the mobile RFID label；
The identification information, the weight information and the type of action are matched, to generate a food storing data.
Wherein, at the step " identification information of identification mobile RFID label, and the synchronous weight for detecting the refrigerator "
In:
The identification information generally comprises food name, in advance in typing RFID label tag, and by being arranged in the refrigerator
RFID acquisition module is obtained.The RFID acquisition module is set as can recognize the signal of RFID label tag, acquisition signal strength
And read the identification information of the RFID label tag.Certainly, the precondition of the identification information is obtained are as follows: pre- on each food
It is first provided with RFID label tag, is not described in detail herein.
RFID label tag may be configured as passive label, active label, may also be configured to the label for just issuing signal upon displacement.
According to the difference of the RFID label tag, the step " identification information for identifying the mobile RFID label " has different implementation
Mode.Such as in one embodiment, RFID label tag is set as just issuing the label of signal upon displacement, when food moves
When, the RFID label tag synchronizing moving that is arranged on food simultaneously issues signal, and the RFID acquisition module identifies after collecting the signal
The identification information of the RFID label tag.And in an alternative embodiment of the invention, RFID label tag is set as regardless of whether mobile can be with
The RFID acquisition module carries out signal interaction, and the step " identifies the identification information of the mobile RFID label, and synchronous inspection
Survey the weight of the refrigerator " include:
Acquire the signal strength of simultaneously tracking RFID label；
Judge whether the signal strength changes, if so, determining the RFID label tag for mobile RFID label；
Identify the identification information of the mobile RFID label, and the synchronous weight for detecting the refrigerator.
Specifically, the RFID acquisition module acquires the signal strength of all RFID label tags in its sensing range, it is described
Whether the judgment module of refrigerator changes according to signal strength judges whether corresponding RFID label tag moves.If mobile RFID mark
Label, then the RFID acquisition module identifies its identification information, to confirm the food for the food for being provided with the mobile RFID label
Title；If RFID label tag does not move, described its identification information of RFID acquisition module nonrecognition.
The weight of the refrigerator is acquired by the weighing and sensing module being set on the refrigerator.The weighing and sensing
Module may be configured as one or more pressure sensors, and principle is deformation under pressure to generate electric signal, and is exported
The electric signal is to detect the weight of the refrigerator.
Wherein, the step " obtains the weight of food corresponding to the mobile RFID label according to the variation of the weight
Measure information " in:
Before and after the variation of the weight is by food deposit/taking-up, the weighing and sensing module is detected described twice
The weight of refrigerator and determine, the variation of the weight generally includes weight change value and change type (as increased, reducing).It is described
The variation of weight is caused by deposit/taking-up of food, and therefore, the data processing module of the refrigerator can be according to the weight
Variation obtains the weight information of food corresponding to the mobile RFID label.
Wherein, the step " type of action for judging the mobile RFID label " includes numerous embodiments.
Referring to Fig. 2, in an embodiment of the present invention, step " type of action for the judging the mobile RFID label " packet
It includes:
The movement class of the mobile RFID label is judged according to the variation tendency of the signal strength of the mobile RFID label
Type.
Wherein, the variation tendency includes following several methods of determination:
One method of determination is that the signal that the RFID acquisition module is set as mobile RFID label described in real-time tracing is strong
Degree then judges that the mobile RFID label completes movement until its signal strength maintains to stablize to preset time period.Then by counting
The change in signal strength in the mobile RFID label moving process is analyzed according to analysis module, obtains its variation tendency.The change
Change trend generally includes by dying down by force and changing from weak to strong, wherein if the variation tendency is to change from weak to strong, the movement class
Type is deposit movement；If the variation tendency is by dying down by force, the type of action is taking-up movement.
Further, also difference can be stored in advance according to the RFID acquisition module in the setting position on the refrigerator
Several change in signal strength trend pre-programmed curves corresponding to the type of action；Join Fig. 3 and Fig. 4, when the RFID acquires mould
When block is set at the left side wall or right side wall of inner container of icebox, a kind of variation tendency pre-programmed curve such as figure corresponding to deposit movement
Shown in 3, the variation tendency pre-programmed curve that another kind corresponds to taking-up movement is as shown in Figure 4.The judgment module can be by the letter
The variation tendency of number intensity is matched with the variation tendency pre-programmed curve, to judge that the variation tendency is corresponding
Type of action.Certainly, in the specific implementation, the deposit movement or taking-up movement can correspond respectively to a variety of variation tendencies
Pre-programmed curve.
Another method of determination is, can also be according to the RFID acquisition module in the setting position on the refrigerator referring to Fig. 5
It sets, presets a signal strength threshold A0, the signal strength threshold A0It can the collected ice less than the RFID acquisition module
The signal strength of any position in case.The step " is sentenced according to the variation tendency of the signal strength of the mobile RFID label
Break the type of action of the mobile RFID label " include:
Acquire the initial signal intensity A of the mobile RFID label1With final signal intensity A9；The initial signal intensity
A1, the final signal intensity A9With preset signal strength threshold value A0Between size relation define the mobile RFID label
The variation tendency of signal strength；
The type of action of the mobile RFID label is judged according to the variation tendency；Wherein, if the variation tendency is
A1≤A0< A9, then the type of action is deposit movement；If the variation tendency is A1> A0≥A9, then the type of action be
Taking-up movement.
Specifically, the signal strength of mobile RFID label described in the RFID acquisition module setting real-time tracing, Zhi Daoqi
Signal strength maintains to stablize to preset time period, then judges that the mobile RFID label completes movement.The initial signal intensity
A1Signal strength when starting mobile for the mobile RFID label, the final signal intensity A9For the mobile RFID label knot
Signal strength after Shu Yidong.Then by the data analysis module according to the initial signal intensity A1, the final signal
Intensity A9With signal strength threshold A0Between size relation define the mobile RFID label signal strength variation tendency.
By presetting the signal strength threshold A0, data noise can be excluded, such as when user only moves position of the food in refrigerator and
When not taking out or being stored in, although the signal strength of the RFID label tag of food can also change, since its initial signal is strong
Spend A1With final signal intensity A9It is all larger than signal strength threshold A0, therefore will not be judged as taking-up movement or deposit movement.
Referring to Fig. 6, in an alternative embodiment of the invention, the step " type of action for judging the mobile RFID label "
Include:
The type of action of the mobile RFID label is judged according to the variation of the weight；Wherein, if the weight of the refrigerator
Amount increases, then the type of action is deposit movement；If the weight of the refrigerator reduces, the type of action is to take out to move
Make.
Certainly, several embodiments of attached drawing 2,5,6 can be used cooperatively, to play the effect verified each other.Such as when according to letter
When the variation tendency of number intensity judges the type of action for deposit movement, the movement is also judged according to the variation of the weight
Type is deposit movement, and the two judging result is identical, the effect of verifying is played, to guarantee result accuracy.Sentence in the two
When the different conflict of disconnected result, the also capable of emitting prompting of the reminding module of the refrigerator, with human assistance error correction, the reminding module
It may be configured as the various ways such as voice reminder, display alarm or light prompting, repeat no more.
In addition, in an embodiment of the present invention, the step is " by the identification information, the weight information and described dynamic
Make type matching, to generate a food storing data " in:
The identification information, the weight information and the type of action can be matched according to temporal information, to generate one
The food storing data, the food storing data include the identification information, the weight information and the type of action,
Example as shown in the table.
The food control method further includes being located at step " by the identification information, the weight information and the movement
The step of after type matching, to generate a food storing data ":
Export the food storing data.
Specifically, can by the output module of the refrigerator by the food storing data export to display module of refrigerator,
Or mobile terminal or network server.In conjunction with specific application, it can be achieved that showing the food by display or mobile terminal
Storing data can also update food according to the food storing data and store list, also take for network server acquisition user
The type, quantity or habit etc. of food are put, to realize prompting function or recommending recipes etc..
In an embodiment of the present invention, the food control method further includes the step " identification mobile RFID label
Identification information, and the synchronous weight for detecting the refrigerator " before the step of:
The open signal for receiving refrigerator door, establishes intermediate database；
And the step " matches the identification information, the weight information and the type of action, to generate one
The step of after food storing data ":
The food storing data is saved to the intermediate database；
The shutdown signal for receiving the refrigerator door exports the food storing data.
Wherein, the open signal and shutdown signal of the refrigerator door are respectively by the door body inductor sense of the refrigerator door
Generation when measuring the opening and closing of the door body, the door body inductor send the open signal and the shutdown signal
To the control module of refrigerator.
The intermediate database is used to store the refrigerator door and is opened into the food storage number of the whole between closing
According to.It according to time sequencing, is opened between closing in the refrigerator door, all mobile RFID labels of deposit/taking-up
Food storing data can save one by one to the intermediate database, indicate example as follows:
As can be seen from the above table, the food control method provided using an embodiment of the present invention can be moved by detection
The identification information of RFID label tag and the weight change for acquiring refrigerator, may be implemented to food deposit/taking-up real-time tracing；May be used also
To realize to such as taking out part bread, filling into the monitoring for the case where part such as rice accesses into rice box, to realize intelligence control
The kind and weight of food, to make refrigerator suitable for a variety of intelligent environments such as healthy diet, Food In Purchasing and recipe recommendation.
When closing the refrigerator door, the food storing data in the intermediate database can pass through output module
To list update module, the list update module is used to obtain the initial food in the refrigerator when the door body is opened for output
Product list, acquisition modes can be to receive from the terminal memory of the refrigerator, and the original food list includes food name, food
The information such as product weight.After the list update module receives the food storing data, institute can be updated by logical operation
Original food list is stated to form current food list.The current food list can be reserved for terminal memory, can also be in aobvious
Show be displayed in module user referring to.
The food storing data in the intermediate database can also be directly output to show by the output module
Module, so that user checks food access procedure；It can be also uploaded to network server, access food to count or analyze user
Habit, or according to the type and quantity of user's access food, provide recipe recommendation, may also be combined with user's body health index and accomplish
Prompting function etc..
In addition, in an embodiment of the present invention, the RFID acquisition mould can be started after refrigerator door unlatching
Block；After refrigerator door closing, the RFID acquisition module is closed.
An embodiment of the present invention also provides a kind of food management system of intelligent refrigerator, and the refrigerator includes for storing
Compartment, door body and the door body inductor of food, the door body is for being opened and closed the compartment so that user passes in and out the compartment and carries out
The pick-and-place of food, the door body inductor can be used for sensing the opening and closing of the door body and generate corresponding open signal and closing
Signal.
The refrigerator realizes the weight of the taking-up that food is stored to it or deposit and each food by the food management system
Amount is detected and is identified, to achieve the effect that intelligently to manage.
The food management system includes control module, judgment module, RFID acquisition module, weighing and sensing module and data
Processing module.
The RFID acquisition module, for identification identification information of mobile RFID label；May be disposed in the refrigerator with
RFID label tag in the refrigerator is detected, specifically, can be used to identify the signal of RFID label tag, acquisition signal strength and
Read the identification information etc. of the RFID label tag.The identification information generally comprises food name, in advance in typing RFID label tag.
Certainly, the precondition of the identification information is obtained are as follows: be previously provided with RFID label tag on each food, do not do herein in detail
It repeats.
RFID label tag may be configured as passive label, active label, may also be configured to the label for just issuing signal upon displacement.
According to the difference of the RFID label tag, the RFID acquisition module identifies the process of the identification information of the mobile RFID label
With different embodiments.Such as in one embodiment, RFID label tag is set as just issuing the label of signal upon displacement, then
When food occurs mobile, the RFID label tag synchronizing moving that is arranged on food simultaneously issues signal, the RFID acquisition module acquisition
The identification information of the RFID label tag is identified after to the signal.
And in an alternative embodiment of the invention, RFID label tag is set as regardless of whether mobile can acquire mould with the RFID
Block carries out signal interaction, and the RFID acquisition module acquires the signal strength of all RFID label tags in its sensing range, and will
The signal strength is transmitted to the judgment module；The judgment module be also used to according to the signal strength that receives whether
Variation judges whether corresponding RFID label tag moves；If the RFID label tag is mobile RFID label, the RFID acquires mould
Block identifies the identification information of the mobile RFID label, to confirm the food name for the food for being provided with the mobile RFID label；
If RFID label tag does not move, the identification information of the RFID acquisition module nonrecognition RFID label tag.
The weighing and sensing module, for acquiring the weight of refrigerator in real time；It may be configured as one or more pressure sensors,
Its principle is deformation under pressure to generate electric signal, and exports the electric signal to detect the weight of the refrigerator.
The judgment module judges the type of action of the mobile RFID label for the variation according to the weight；Institute
The variation for stating weight passes through food deposit/taking-up front and back, the weight for the refrigerator described twice that the weighing and sensing module detects
And determine, the variation of the weight generally includes weight change value and change type (as increased, reducing).The variation of the weight
Caused by deposit/taking-up of food, therefore, the judgment module can judge the mobile RFID according to the variation of the weight
Wherein, if the weight of the refrigerator increases, it is dynamic to be stored in that the judgment module judges the type of action to the type of action of label
Make；If the weight of the refrigerator reduces, the judgment module judges the type of action for taking-up movement.
The data processing module obtains food corresponding to the mobile RFID label for the variation according to the weight
The weight information of product.Specifically, the weight that the weight change value of the variation of the weight corresponds to deposit/taking-up food is believed
Breath, therefore the data processing module can obtain food corresponding to the mobile RFID label according to the variation of the weight
Weight information.
The data processing module is also used to match the identification information, the weight information and the type of action,
To generate a food storing data.The identification information, the weight information and the movement can be matched according to temporal information
Type.The food storing data includes the identification information, the weight information and the type of action, as shown in the table
Example.
Further, the control module is used for when the refrigerator door is opened, and receives the door body inductor conveying
The open signal, and for receiving the closing of door body inductor conveying when the refrigerator door is closed
Signal.
The food management system that an embodiment of the present invention provides further includes memory module, output module and list update mould
Block.
When the door body of the refrigerator is opened, the memory module establishes the centre for storing the food storing data
Database；The intermediate database is used to store the refrigerator door and is opened into the food storage number of the whole between closing
According to.It according to time sequencing, is opened between closing in the refrigerator door, all mobile RFID labels of deposit/taking-up
Food storing data can save one by one to the intermediate database, indicate example as follows:
As can be seen from the above table, the food management system provided using an embodiment of the present invention can be moved by detection
The identification information of RFID label tag and the weight change for acquiring refrigerator, may be implemented to food deposit/taking-up real-time tracing；May be used also
To realize to such as taking out part bread, filling into the monitoring for the case where part such as rice accesses into rice box, to realize intelligence control
The kind and weight of food, to make refrigerator suitable for a variety of intelligent environments such as healthy diet, Food In Purchasing and recipe recommendation.
The output module is used for when the closing of the door body, exports the food storing data.
Specifically, when closing the refrigerator door, it is described in the exportable intermediate database of output module
Food storing data is to the list update module.
The list update module is used to obtain the original food list in the refrigerator when the door body is opened, and obtains
Mode can be to receive from the terminal memory of the refrigerator, and the original food list includes the letter such as food name, food weight
Breath.After the list update module receives the food storing data, the original food can be updated by logical operation
List is to form current food list.The current food list can be reserved for terminal memory, can also be in aobvious on display module
Show for user referring to.
The output module can also export the food storing data to display module of refrigerator or mobile terminal or net
Network server.In conjunction with specific application, it can be achieved that showing the food storing data by display module or mobile terminal, may be used also
According to the food storing data update food store list, also for network server acquisition user pick and place food type,
Quantity or habit etc., to realize prompting function or recommending recipes etc..
Further, after the control module is also used to receive the open signal of refrigerator door, the RFID acquisition is controlled
Module is opened；And after the shutdown signal for receiving the refrigerator door, controls the RFID acquisition module and close.
The present invention is another embodiment further provides a kind of food management system of intelligent refrigerator, the embodiment with it is above-mentioned
Details are not described herein for the identical point of the food management system of embodiment, and the two is differing principally in that: the institute of the embodiment
Stating food management system further includes data analysis module, for analyze RFID acquisition module in real time collected signal strength and
To the variation tendency of the signal strength；And the judgment module of the food management system of the embodiment, it is used for basis
The variation tendency judges the type of action of the mobile RFID label.
Specifically, the variation tendency includes following several methods of determination:
One method of determination is that the signal that the RFID acquisition module is set as mobile RFID label described in real-time tracing is strong
Degree then judges that the mobile RFID label completes movement until its signal strength maintains to stablize to preset time period.Then by institute
It states data analysis module and analyzes change in signal strength in the mobile RFID label moving process, obtain its variation tendency.Institute
Stating variation tendency generally includes by dying down and changing from weak to strong by force, wherein if the variation tendency is to change from weak to strong, the judgement
Module judges the type of action for deposit movement；If the variation tendency is by dying down by force, described in the judgment module judgement
Type of action is taking-up movement.
Further, also difference can be stored in advance according to the RFID acquisition module in the setting position on the refrigerator
Several change in signal strength trend pre-programmed curves corresponding to the type of action；Join Fig. 3 and Fig. 4, when the RFID acquires mould
When block is set at the left side wall or right side wall of inner container of icebox, a kind of variation tendency pre-programmed curve such as figure corresponding to deposit movement
Shown in 3, the variation tendency pre-programmed curve that another kind corresponds to taking-up movement is as shown in Figure 4.The judgment module can be by the letter
The variation tendency of number intensity is matched with the variation tendency pre-programmed curve, to judge that the variation tendency is corresponding
Type of action.Certainly, in the specific implementation, the deposit movement or taking-up movement can correspond respectively to a variety of variation tendencies
Pre-programmed curve.
Another method of determination is, can also be according to the RFID acquisition module in the setting position on the refrigerator referring to Fig. 5
It sets, presets a signal strength threshold A0, the signal strength threshold A0It can the collected ice less than the RFID acquisition module
The signal strength of any position in case.
The signal strength of mobile RFID label described in the RFID acquisition module setting real-time tracing, until its signal strength
It maintains to stablize to preset time period, then judges that the mobile RFID label completes movement.The initial signal intensity A1It is described
Signal strength when mobile RFID label starts mobile, the final signal intensity A9After terminating movement for the mobile RFID label
Signal strength.
The data analysis module is according to the initial signal intensity A1, the final signal intensity A9With signal strength threshold
Value A0Between size relation define the mobile RFID label signal strength variation tendency.
The judgment module can also be used to when the variation tendency be A1≤A0< A9When, the type of action is judged to deposit
Enter movement；When the variation tendency is A1> A0≥A9When, judge the type of action for taking-up movement.
By presetting the signal strength threshold A0, data noise can be excluded, such as when user only moves food in refrigerator
Position and not when taking out or being stored in, although the signal strength of the RFID label tag of food can also change, as at the beginning of it
Beginning signal strength A1With final signal intensity A9It is all larger than signal strength threshold A0, therefore will not be judged as that taking-up movement or deposit are dynamic
Make.
Compared with prior art, the present invention has following advantageous effects: passing through the real-time inspection to mobile RFID label
The acquisition to acquire identification information, in conjunction with weighing and sensing module to weight information is surveyed, realizes the weight of real-time tracing certain food
Variation and access status, can not only realize intelligent management；It can also be achieved and part is taken out to same food or increases the weight of part
Amount monitoring, such as the case where take out out of refrigerator part bread, or the case where the taking-up of rice box is filled into rice, it can be with intelligent decision
The withdrawal amount of bread or rice fills into weight and remaining weight.In several embodiments provided by the present invention, it should be appreciated that
It arriving, the embodiment of structure described above, system and method is only schematical, for example, the division of the module,
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple module or components can be with
In conjunction with or be desirably integrated into another device, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or module or
Communication connection can be electrical property, mechanical or other forms.
The module as illustrated by the separation member may or may not be physically separated, aobvious as module
The component shown may or may not be physical module, it can and it is in one place, or may be distributed over multiple
On network module.Some or all of the modules therein can be selected to realize present embodiment scheme according to the actual needs
Purpose.
In addition, each functional module in each embodiment of the present invention can integrate in a processing module, it can also
To be that modules physically exist alone, can also be integrated in a module with 2 or 2 with upper module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also realize in the form of hardware adds software function module.
Illustrating only for feasible embodiment of the invention is described in detail in those listed above, they are simultaneously
It is non-to limit the scope of the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention or change should all
It is included within protection scope of the present invention.
Claims (6)
1. a kind of food control method of intelligent refrigerator, which is characterized in that the method includes the steps:
Identify the identification information of mobile RFID label, and the synchronous weight for detecting the refrigerator；It specifically includes: acquiring and track
The signal strength of RFID label tag；Judge whether the signal strength changes, if so, determining the RFID label tag for mobile RFID mark
Label；Identify the identification information of the mobile RFID label, and the synchronous weight for detecting the refrigerator；
The weight information of food corresponding to the mobile RFID label is obtained according to the variation of the weight；
The type of action of the mobile RFID label is judged according to the variation tendency of the signal strength of the mobile RFID label；
The identification information, the weight information and the type of action are matched, to generate a food storing data；
Wherein, the step " judges the mobile RFID mark according to the variation tendency of the signal strength of the mobile RFID label
The type of action of label " includes:
The signal strength for tracking the mobile RFID label, until its signal strength maintain stablize to preset time period, then judge
The mobile RFID label completes movement；
The change in signal strength in the mobile RFID label moving process is analyzed, its variation tendency is obtained；
Several change in signal strength trend pre-programmed curves for corresponding respectively to the type of action are stored in advance；
The variation tendency of the signal strength is matched with the variation tendency pre-programmed curve, to judge the variation
The corresponding type of action of trend；
Alternatively, the step " judges the mobile RFID mark according to the variation tendency of the signal strength of the mobile RFID label
The type of action of label " includes:
The signal strength for tracking the mobile RFID label, until its signal strength maintain stablize to preset time period, then judge
The mobile RFID label completes movement；
Acquire the initial signal intensity A of the mobile RFID label1With final signal intensity A9；The initial signal intensity A1, institute
State final signal intensity A9With preset signal strength threshold value A0Between size relation define the mobile RFID label signal it is strong
The variation tendency of degree；
The type of action of the mobile RFID label is judged according to the variation tendency；Wherein, if the variation tendency is A1≤A0
< A9, then the type of action is deposit movement；If the variation tendency is A1> A0≥A9, then the type of action is to take out
Movement.
2. the food control method of intelligent refrigerator according to claim 1, which is characterized in that the food control method is also
Include:
The type of action of the mobile RFID label is judged according to the variation of the weight；Wherein, if the weight of the refrigerator increases
Greatly, then the type of action is deposit movement；If the weight of the refrigerator reduces, the type of action is taking-up movement；
In the food control method, if according to the variation tendency of signal strength judge the judging result of the type of action with
When judging the judging result difference of the type of action according to the variation of the weight, issues and remind.
3. the food control method of intelligent refrigerator according to claim 1, which is characterized in that step " the identification movement
It is further comprised the steps of: before the identification information of RFID label tag, and the synchronous weight for detecting the refrigerator "
The open signal for receiving refrigerator door, establishes intermediate database；
And the step " matches the identification information, the weight information and the type of action, to generate a food
It is further comprised the steps of: after storing data "
The food storing data is saved to the intermediate database；
The shutdown signal for receiving the refrigerator door exports the food storing data.
4. a kind of food management system of intelligent refrigerator, which is characterized in that the food management system includes:
RFID acquisition module is also used to identify for acquiring the signal strength for all RFID label tags being located in its sensing range
The identification information of mobile RFID label, and the signal strength for acquiring the mobile RFID label in real time；
Data analysis module, for analyzing the signal strength and obtaining the variation tendency of the signal strength；
Judgment module, for judging whether the signal strength of the RFID label tag changes, if so, described in judgment module judgement
RFID label tag is the mobile RFID label；It is also used to judge according to the variation tendency movement class of the mobile RFID label
Type；
Weighing and sensing module, for acquiring the weight of refrigerator in real time；
Data processing module obtains the weight of food corresponding to the mobile RFID label for the variation according to the weight
Information；And for matching the identification information, the weight information and the type of action, to generate a food storage
Data；
Wherein, the RFID acquisition module is set as the signal strength of mobile RFID label described in real-time tracing, until its signal
Intensity maintains to stablize to preset time period, then judges that the mobile RFID label completes movement；
The data analysis module analyzes the change in signal strength in the mobile RFID label moving process to obtain its variation
Trend, the judgment module can match the variation tendency of the signal strength with variation tendency pre-programmed curve, with
Judge the corresponding type of action of the variation tendency；Alternatively, the data analysis module is according to the mobile RFID label
Initial signal intensity A1, the mobile RFID label final signal intensity A9With preset signal strength threshold A0Between it is big
The variation tendency of the signal strength of mobile RFID label described in small contextual definition, the judgment module can also be used in when the variation
Trend is A1≤A0< A9When, judge the type of action for deposit movement；When the variation tendency is A1> A0≥A9When, judgement
The type of action is taking-up movement.
5. the food management system of intelligent refrigerator according to claim 4, which is characterized in that the food management system is also
Including memory module and output module, when the door body of the refrigerator is opened, the memory module is established for storing the food
The intermediate database of product storing data；
When the closing of the door body, the output module exports the food storing data.
6. the food management system of intelligent refrigerator according to claim 5, which is characterized in that the food management system is also
Including list update module, the list update module is used to obtain the original food in the refrigerator when the door body is opened
List；And the food storing data for receiving the output module output when the door body is closed, and according to institute
It states food storing data and updates the original food list to form current food list.
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| CN106568293B (en) * | 2016-10-14 | 2019-03-12 | 青岛海尔特种电冰箱有限公司 | The detection method and refrigerator of refrigerator food operation |
| CN106611105A (en) * | 2016-12-08 | 2017-05-03 | 美的集团股份有限公司 | Cookbook recommendation realization method and apparatus |
| CN106679327B (en) * | 2017-01-25 | 2020-11-13 | 重庆海尔制冷电器有限公司 | Intelligent refrigerator based on RFID scanning and containing management method thereof |
| CN106979659B (en) * | 2017-05-08 | 2019-08-02 | 青岛海尔特种电冰箱有限公司 | Refrigerator temperature control method and computer storage medium based on food materials |
| JP7012261B2 (en) * | 2017-10-06 | 2022-01-28 | パナソニックＩｐマネジメント株式会社 | refrigerator |
| 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 |
| CN110906640B (en) * | 2018-09-14 | 2022-08-12 | 博西华电器（江苏）有限公司 | Article positioning method of storage equipment and storage equipment |
| CN110966838A (en) * | 2019-10-30 | 2020-04-07 | 珠海格力电器股份有限公司 | Food refrigeration information monitoring method and device, electronic equipment and storage medium |
| WO2022001768A1 (en) * | 2020-07-01 | 2022-01-06 | 海信视像科技股份有限公司 | Refrigerator |
| CN112179038A (en) * | 2020-09-02 | 2021-01-05 | 四川虹美智能科技有限公司 | Intelligent refrigerator and food management method thereof |
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