CN106052242B - 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 PDF

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Publication number
CN106052242B
CN106052242B CN201610377763.7A CN201610377763A CN106052242B CN 106052242 B CN106052242 B CN 106052242B CN 201610377763 A CN201610377763 A CN 201610377763A CN 106052242 B CN106052242 B CN 106052242B
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food
rfid label
variation tendency
action
type
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CN106052242A (en
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徐同
吴勇
朱小兵
王铭
党广明
唐骏
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Qingdao Haier Co Ltd
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Qingdao Haier Co Ltd
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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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10118—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the sensing being preceded by at least one preliminary step
    • G06K7/10138—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the sensing being preceded by at least one preliminary step the step consisting of determining the type of record carrier, e.g. to determine if the record carrier is an RFID tag of the long or short range type, or to determine the preferred communication protocol of the RFID tag

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

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；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 and the type of action are matched, to generate a food storing data.Compared with prior art, the present invention has following advantageous effects: by the variation tendency of signal strength, judging the type of action of mobile RFID label, can monitor the access status of food in refrigerator in real time；And the real-time monitoring by accessing to food is, it can be achieved that the monitoring taken out to same food products part or partially filled into, in refrigerator switch gate in the identical situation of RFID label tag, can also obtain user and pick and place the pilot process of food to realize the intelligent monitoring of food.

Description

The food control method and food management system of intelligent refrigerator
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 Take the type and corresponding quantity/weight of food in family；Lack the real intelligent management to food, and then affects refrigerator Accomplish the effect of intelligent prompting for the eating habit of user.The problem of can not judging food disengaging and tracking food access amount It does not solve, the development of the intelligence hommization of refrigerator will be unfavorable for.
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 Deposit/taking-up of real-time tracing food may be implemented in method and food management system.
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；
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；
The identification 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 " 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.
As the further improvement of an embodiment of the present invention, the step is " according to the signal of the mobile RFID label The variation tendency of intensity judges the type of action of the mobile RFID label " include:
Analyze the variation tendency of the signal strength of the mobile RFID label；
The type of action of the mobile RFID label is judged according to the variation tendency；Wherein, if the variation tendency is It changes from weak to strong, then the type of action is deposit movement；If the variation tendency is by dying down by force, the type of action is to take It acts out.
As the further improvement of an embodiment of the present invention, the step is " according to the signal of the mobile RFID label The variation tendency of intensity judges the type of action of the mobile RFID label " include:
Acquire the initial signal intensity A1 and final signal intensity A9 of the mobile RFID label；The initial signal intensity Size relation between A1, the final signal intensity A9 and preset signal strength threshold value A 0 defines 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, the type of action For taking-up movement.
As the further improvement of an embodiment of the present invention, the step " identification information of identification mobile RFID label " It further comprises the steps of: before
The open signal for receiving refrigerator door, establishes intermediate database；
And the step " identification information and the type of action being matched, to generate a food storing data " it After further comprise the steps of:
The food storing data is saved to the intermediate database；
The shutdown signal for receiving the refrigerator door counts the food in the intermediate database comprising the identification information The item number M of storing data；
If M >=2, food quantity acquisition instructions relevant to the identification information are exported.
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 the mobile RFID is acquired in real time The signal strength of label；
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；
Data processing module, for matching the identification information and the type of action to generate a food storage number According to.
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 judgment module is also used to serve as reasons when the variation tendency It is weak to become strong, judge the type of action for deposit movement；And for being to be judged described dynamic by dying down by force when the variation tendency Make type as taking-up movement.
As the further improvement of an embodiment of the present invention, the RFID acquisition module acquires the mobile RFID label Initial signal intensity A1 and final signal intensity A9；
The data analysis module is also used to according to the initial signal intensity A1, the final signal intensity A9 and presets Size relation between signal strength threshold A0 defines the variation tendency of the signal strength of the mobile RFID label；
The judgment module is also used to judge the mobile RFID label when the variation tendency is A1≤A0 < A9 Type of action is deposit movement；And for judging the type of action to take when the variation tendency is A1 > A0 >=A9 It acts out.
As the further improvement of an embodiment of the present invention, the food management system further includes memory module and output Module, the memory module are used to establish when the door body of the refrigerator is opened for storing in the food storing data Spatial database；
The data processing module is also used to, and when the door body of the refrigerator is closed, the data processing module counts institute State the item number M of the food storing data in intermediate database comprising the identification information；
Wherein, as M >=2, the output module exports food quantity acquisition instructions, right to acquire the identification information institute Answer the quantity information of food.
Compared with prior art, the present invention has following advantageous effects: passing through the variation tendency of signal strength, judgement The type of action of mobile RFID label can monitor the access status of food in refrigerator in real time；And it is real-time by being accessed to food Monitoring in the case where refrigerator RFID label tag is constant to the monitoring of same food products part access, it can be achieved that can also obtain user and take The pilot process of food is put, such as takes out out of refrigerator the case where putting back to again after the bread of part, although RFID label tag is being opened the door Exist at closing time, still available user picks and places the pilot process of food to realize the intelligent monitoring of food.
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.
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；
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；
The identification information and the type of action are matched, to generate a food storing data.
Wherein, in the step " identification information of identification mobile RFID label ":
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 " identification information of identification mobile RFID label " includes:
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.
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.
Wherein, referring to Fig. 2, in one embodiment, the step is " according to the change of the signal strength of the mobile RFID label Change the type of action of mobile RFID label described in Trend judgement " include:
Analyze the variation tendency of the signal strength of the mobile RFID label；
The type of action of the mobile RFID label is judged according to the variation tendency；Wherein, if the variation tendency is It changes from weak to strong, then the type of action is deposit movement；If the variation tendency is by dying down by force, the type of action is to take It acts out.
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.Then institute is analyzed by data analysis module The change in signal strength in mobile RFID label moving process is stated, its variation tendency is obtained.
It further, in an embodiment of the present invention, can also be according to the RFID acquisition module in setting on the refrigerator Several change in signal strength trend pre-programmed curves for corresponding respectively to the type of action are stored in advance in seated position；Join Fig. 3 and figure 4, when at the left side wall or right side wall that the RFID acquisition module is set to inner container of icebox, a kind of change corresponding to deposit movement Change trend pre-programmed curve is as shown in figure 3, another variation tendency pre-programmed curve for corresponding to taking-up movement is as shown in Figure 4.It is described Judgment module can match the variation tendency with the variation tendency pre-programmed curve, to judge that the variation tendency is opposite The type of action answered.Certainly, in the specific implementation, the deposit movement or taking-up movement can correspond respectively to a variety of variations Trend pre-programmed curve.
In addition, referring to Fig. 5, it in an alternative embodiment of the invention, can also be according to the RFID acquisition module in the refrigerator On setting position, preset a signal strength threshold A0, the signal strength threshold A0It can be acquired less than the RFID acquisition module The signal strength of any position in the refrigerator arrived.The step is " according to the signal strength of the mobile RFID label Variation tendency judges 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.
Wherein, the signal strength of mobile RFID label described in the RFID acquisition module setting real-time tracing, until its letter Number intensity maintains to stablize to preset time period, then judges that the mobile RFID label completes movement.The initial signal intensity A1 Signal strength when starting mobile for the mobile RFID label, the final signal intensity A9Terminate for the mobile RFID label Signal strength after movement.Then by data analysis module according to the initial signal intensity A1, the final signal intensity A9With The signal strength threshold A0Between size relation define the mobile RFID label signal strength variation tendency.Pass through Preset the signal strength threshold A0, data noise can be excluded, is not such as when user only moves position of the food in refrigerator When taking out or being stored in, although the signal strength of the RFID label tag of food can also change, due to its initial signal intensity A1 With final signal intensity A9It is all larger than signal strength threshold A0, therefore will not erroneous judgement be that taking-up movement or deposit act.
In addition, in an embodiment of the present invention, the food control method further includes being located at step " the matching mark letter The step of after breath and the type of action, 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 module or mobile terminal Product storing data can also update food according to the food storing data and store list, also acquire user for network server Type, quantity or the habit etc. of food are picked and placed, to realize prompting function or recommending recipes etc..
Wherein, the step " identification information and the type of action being matched, to generate a food storing data " In:
The identification information and the type of action can be matched according to temporal information；One generated the food storage Data, including the identification information and the type of action, example as shown in the table.
In an embodiment of the present invention, the food control method further includes the step " identification mobile RFID label Identification information " before the step of:
The open signal for receiving refrigerator door, establishes intermediate database；
And the step " identification information and the type of action being matched, to generate a food storing data " it Step afterwards:
The food storing data is saved to the intermediate database；
The shutdown signal for receiving the refrigerator door counts the food in the intermediate database comprising the identification information The item number M of storing data；
If M >=2, food quantity acquisition instructions corresponding with the identification information are exported.
Wherein, the intermediate database is used to store the whole food that the refrigerator door is opened between closing and deposits Store up data.It according to time sequencing, is opened between closing in the refrigerator door, all mobile RFIDs of deposit/taking-up The food storing data of label can save one by one to the intermediate database, indicate example as follows:
When closing the refrigerator door, the intermediate database is accessed, and the centre is traversed with the identification information All food storing datas in database.2 of the same identification information (such as " bread ") and the above food are deposited if it exists Data are stored up, then the control module of the refrigerator generates food quantity acquisition corresponding with the identification information (such as " bread ") and refers to Enable, and the food quantity acquisition instructions are exported to display module of refrigerator, mobile terminal etc., dialog box is popped up, such as to pass through User inputs to update the quantity information of food corresponding with the identification information.
In an embodiment of the present invention, after the refrigerator door is closed, by the food of the intermediate database Storing data output is to update food storage list；Can also with network-in-dialing with by the food storing data upload server, To count or analyze the habit that user accesses food, or the type and quantity of food are accessed according to user, provide recipe recommendation, also Accomplish prompting function etc. in combination with user's body health index.
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, data analysis module, data Processing module and output module.
Specifically, the RFID acquisition module, the identification information of mobile RFID label for identification, and for adopting in real time Collect the signal strength of the mobile RFID label；
The data analysis module, for analyzing the signal strength and obtaining the variation tendency of the signal strength；
The judgment module, for judging the type of action of the mobile RFID label according to the variation tendency；
The data processing module, for matching the identification information and the type of action to generate a food storage Data.
Wherein, the RFID acquisition module may be disposed in the refrigerator to examine to the RFID label tag in the refrigerator It surveys, specifically, can be used to identify the signal of RFID label tag, acquisition signal strength and the identification information for reading the RFID label tag Deng.The identification information generally comprises food name, in advance in typing RFID label tag.Certainly, before obtaining the identification information Propose condition are as follows: be previously provided with RFID label tag on each food, be 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 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.
Wherein, the RFID acquisition module is set as the signal strength of mobile RFID label described in real-time tracing, Zhi Daoqi Signal strength maintains to stablize to preset time period, then judges that the mobile RFID label completes movement.The data analysis module The change in signal strength in the mobile RFID label moving process is analyzed, its variation tendency is obtained.In one embodiment of the invention In, the variation tendency includes changing from weak to strong and by dying down by force.
The judgment module is also used to when the variation tendency be to change from weak to strong, and it is dynamic to be stored in judge the type of action Make；And for being to judge the type of action for taking-up movement by dying down by force when the variation tendency.
Specifically, in an embodiment of the present invention, according to the RFID acquisition module in the setting position on the refrigerator, Several change in signal strength trend pre-programmed curves for corresponding respectively to the type of action are stored in advance；Join Fig. 3 and Fig. 4, works as institute When stating RFID acquisition module and being set at the left side wall or right side wall of inner container of icebox, a kind of variation tendency corresponding to deposit movement Pre-programmed curve is as shown in figure 3, another variation tendency pre-programmed curve for corresponding to taking-up movement is as shown in Figure 4.The judgement mould Block can match the variation tendency with the variation tendency pre-programmed curve, to judge that the variation tendency is corresponding dynamic Make type.Certainly, in the specific implementation, it is pre- can to correspond respectively to a variety of variation tendencies for the deposit movement or taking-up movement If curve.
It, in an alternative embodiment of the invention, can also be according to the RFID acquisition module in setting on the refrigerator referring to Fig. 5 Seated position presets a signal strength threshold A0, the signal strength threshold A0It can collected institute less than the RFID acquisition module State the signal strength of any position in refrigerator.
The RFID acquisition module is also used to acquire the initial signal intensity A of the mobile RFID label1And final signal Intensity A9, the initial signal intensity A1Signal strength when starting mobile for the mobile RFID label, the final signal intensity A9Terminate the signal strength after movement for the mobile RFID label.
The data analysis module is also used to according to the initial signal intensity A1, the final signal intensity A9With it is default Signal strength threshold 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.
The data processing module is also used to match the identification information and the type of action according to temporal information, raw At a food storing data, the food storing data includes the identification information and the type of action, such as following table It is exemplified.
Further, the control module is also used to that it is defeated to receive the door body inductor when the refrigerator door is opened The open signal sent, and the shutdown signal for when the refrigerator door is closed, receiving the door body inductor conveying.
When the control module receives the open signal, the memory module foundation is deposited for storing the food Store up the intermediate database of data；The intermediate database is used to store the refrigerator door and is opened into described in the whole between closing Food storing data.According to time sequencing, it is opened between closing in the refrigerator door, all mobile RFID labels The food storing data can save one by one to the intermediate database, indicate example as follows:
When the control module receives the shutdown signal, the data processing module counts the intermediate database In comprising the identification information food storing data item number M；
Wherein, as M >=2, the control module exports food quantity acquisition instructions, right to acquire the RFID label tag institute Answer the quantity information of food.
Specifically, the data processing module accesses the intermediate database, and when closing the refrigerator door with institute It states identification information and traverses all food storing datas in the intermediate database.The same identification information (such as " face if it exists Packet ") 2 and the above food storing data, then the control module generates corresponding with the identification information (such as " bread ") Food quantity acquisition instructions；
The output module is also used to export the food quantity acquisition instructions to display module of refrigerator or mobile terminal Deng updated and the identification information phase with being inputted by user in the display module or mobile terminal pop-up dialog box The quantity information of corresponding food.
In an embodiment of the present invention, the output module can also be used in, will be described after the refrigerator door is closed The food storing data of intermediate database is exported to the terminal memory of the refrigerator, to update food storage list；? Can with network-in-dialing with by the food storing data upload server, to count or analyze the habit that user accesses food, or The type and quantity that food is accessed according to user, provide recipe recommendation, may also be combined with user's body health index and accomplish to remind function Energy is equal.
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.
Compared with prior art, the food control method and food control for the intelligent refrigerator that an embodiment of the present invention provides System has the advantages that the variation tendency by signal strength, judges the type of action of mobile RFID label, can be real-time Monitor the access status of food in refrigerator；And the real-time monitoring by accessing to food is, it can be achieved that repeatedly pick and place same food Monitoring, in timely refrigerator switch gate in the identical situation of RFID label tag, can also obtain user pick and place food pilot process, Such as the case where being stored in bread again after the bread of part is taken out out of refrigerator, although RFID label tag exists at closing time opening the door, It can be with the taking-up quantity and volume residual of intelligent decision bread.
In several embodiments provided by the present invention, it should be understood that structure, system and side described above The embodiment of method is only schematical, for example, the division of the module, only a kind of logical function partition is practical real Current there may be another division manner, such as multiple module or components may be combined or can be integrated into another device, Or some features can be ignored or not executed.Another point, shown or discussed mutual coupling or direct-coupling or logical Letter connection can be through some interfaces, and the indirect coupling or communication connection of device or module can be electrical property, it is mechanical or other Form.
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 (10)

1. a kind of food control method of intelligent refrigerator, the method includes the steps:
Identify the identification information of mobile RFID label；
It is characterized in that, the method also includes steps:
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 and the type of action are matched, to generate a food storing data.
2. the food control method of intelligent refrigerator according to claim 1, which is characterized in that step " the identification movement The identification information of RFID label tag " includes:
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.
3. the food control method of intelligent refrigerator according to claim 1, which is characterized in that the step is " according to described The variation tendency of the signal strength of mobile RFID label judges the type of action of the mobile RFID label " include:
Analyze the variation tendency of the signal strength of the mobile RFID label；
The type of action of the mobile RFID label is judged according to the variation tendency；Wherein, if the variation tendency is by weak Become strong, then the type of action is deposit movement；If the variation tendency is by dying down by force, the type of action is to take out to move Make.
4. the food control method of intelligent refrigerator according to claim 1, which is characterized in that the step is " according to described The variation tendency of the signal strength of mobile RFID label judges 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, 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.
5. 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 "
The open signal for receiving refrigerator door, establishes intermediate database；
And after the step " identification information and the type of action being matched, to generate a food storing data " also Comprising steps of
The food storing data is saved to the intermediate database；
The shutdown signal for receiving the refrigerator door counts the food in the intermediate database comprising the identification information and stores The item number M of data；
If M >=2, food quantity acquisition instructions relevant to the identification information are exported.
6. a kind of food management system of intelligent refrigerator, which is characterized in that the food management system includes:
RFID acquisition module, the identification information of mobile RFID label for identification, and the mobile RFID label is acquired in real time Signal strength；
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；
Data processing module, for matching the identification information and the type of action to generate a food storing data.
7. the food management system of intelligent refrigerator according to claim 6, which is characterized in that the RFID acquisition module is also For acquiring the signal strength for all RFID label tags being located in its sensing range；
The judgment module is also used to judge whether the signal strength of the RFID label tag changes, if so, the judgment module is sentenced The fixed RFID label tag is the mobile RFID label.
8. the food management system of intelligent refrigerator according to claim 6, which is characterized in that the judgment module is also used to When the variation tendency be change from weak to strong, judge the type of action be deposit act；And for being when the variation tendency By dying down by force, judge the type of action for taking-up movement.
9. the food management system of intelligent refrigerator according to claim 6, which is characterized in that the RFID acquisition module is adopted Collect the initial signal intensity A of the mobile RFID label1With final signal intensity A9；
The data analysis module is also used to according to the initial signal intensity A1, the final signal intensity A9With preset signals Intensity threshold A0Between size relation define the mobile RFID label signal strength variation tendency；
The judgment module is also used to when the variation tendency be A1≤A0< A9When, judge the movement of the mobile RFID label Type is deposit movement；And for being A when the variation tendency1> A0≥A9When, it is dynamic to take out to judge the type of action Make.
10. the food management system of intelligent refrigerator according to claim 6, which is characterized in that the food management system It further include memory module and output module, the memory module is used to establish when the door body of the refrigerator is opened for storing The intermediate database of the food storing data；
The data processing module is also used to, when the door body of the refrigerator is closed, during data processing module statistics is described The item number M of food storing data in spatial database comprising the identification information；
Wherein, as M >=2, the output module exports food quantity acquisition instructions, to acquire food corresponding to the identification information The quantity information of product.
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