CN103815675B - A kind of implementation method of Intelligent wine cabinet system - Google Patents

Abstract

The invention discloses an intelligent wine cabinet system and its realization method. The system includes a cloud computing data center and a local intelligent wine cabinet. The local intelligent wine cabinet includes a cabinet body and an internal wine rack. Processor, sensor identification module, liquid crystal touch console, information transmission interface, RFID identification module, camera identification module for identifying the two-dimensional code label information and shape feature information of the wine bottle in the wine cellar, the microprocessor is used to The data uploaded by the RFID identification module and the camera identification module are concurrently cross-validated. The invention has the advantages of high recognition precision, strong anti-interference ability, real-time and automatic positioning of the position or behavior of the wine in the wine cabinet, and high degree of intelligence. The invention can be widely used in the field of intelligent wine cabinets.

Description

Implementation method of an intelligent wine cabinet system

technical field

The invention relates to an intelligent wine cabinet, in particular to an intelligent wine cabinet system and its realization method.

Background technique

The intelligent wine cabinet is a type of wine cabinet that can intelligently control the wine cabinet and manage the wine intelligently. Specifically, the smart wine cabinet can automatically switch the mode of the wine cabinet, and always keep the wine in the best storage state. It allows users to know the quantity of wine in the wine cabinet, humidity and temperature information anytime, anywhere through a smartphone or computer. View Detailed information on each bottle of wine, including variety, color, taste, sobering time, how to match food and winery culture, etc., and can remind users to replenish wine regularly.

At present, there have been many design schemes for smart wine cabinets, such as the Chinese utility model patent application number 201020633958.1, which discloses a smart wine cabinet, which uses an RFID identification module, which can be used to automatically identify wine The coming out and entering of the cabinet can also identify the individual information of the wine. Moreover, the information transmission interface of the smart wine cabinet is connected to the application server through a link, and the application server can perform information interaction with the database server, the network server, and the remote operation terminal. The smart wine cabinet enables users to manage their own wine cabinets in a more convenient and efficient manner, and at the same time manage, query and other operations through remote control.

The above-mentioned prior art uses RFID identification to read the information on the wine bottle, which is more convenient and quicker, but still has the following defects or deficiencies:

(1) The identification and verification method is single, the identification accuracy is not high, and the anti-interference ability is weak. The above-mentioned existing patents only use RFID identification for identification and verification, but RFID identification is greatly affected by liquid, metal and transparent materials, and the accuracy of identification cannot be guaranteed; and the RFID identification module uses two RFID antennas for identification. There is no way to avoid interference when two antennas use the same frequency for detection.

(2) It is impossible to automatically locate the location or behavior of the wine in the wine cabinet in real time. Although the RFID identification module of the above-mentioned existing patent can automatically identify the coming out of the cabinet and entering the cabinet and the individual information of the wine, it lacks an intuitive and effective way to accurately locate the wine stored in the wine compartment, and the user obtains the wine. The specific location of the wine in the cabinet still needs to be done manually, with many steps, not humanized and intelligent enough, and it is easy for the user to not accurately obtain the status of the wine cabinet and cause unnecessary losses.

(3) The above-mentioned existing patent uses a traditional server architecture, which cannot analyze user behavior and wine cabinet usage and provide users with corresponding services in a timely manner, which is not intelligent enough.

Contents of the invention

In order to solve the above technical problems, the object of the present invention is to provide an intelligent wine cabinet system with high recognition accuracy, real-time, automatic location or behavior of wine in the wine cabinet, and high degree of intelligence.

Another object of the present invention is to provide a method for realizing an intelligent wine cabinet system with high recognition accuracy, strong anti-interference ability, real-time, automatic positioning of the position or behavior of wine in the wine cabinet, and high degree of intelligence.

The technical solution adopted by the present invention to solve the technical problem is: an intelligent wine cabinet system, including a cloud computing data center and a local intelligent wine cabinet, the local intelligent wine cabinet includes a cabinet body and an internal wine rack, and the internal wine rack Installed in the cabinet, the internal wine rack includes at least one layer, and each layer is separated by a partition to separate at least two wine compartments; the inside of the cabinet is equipped with a microprocessor, a sensor identification module, a liquid crystal touch console, an information Transmission interface, RFID identification module, camera identification module for identifying the two-dimensional code label information and shape feature information of the wine bottle in the wine cellar, the sensor identification module, liquid crystal touch console, information transmission interface, RFID identification module and camera The identification modules are all connected to the microprocessor, and the information transmission interface is also connected to the cloud computing data center, and the microprocessor is used to perform concurrent cross-validation according to the data uploaded by the RFID identification module and the camera identification module.

Further, the RFID identification module includes:

At least one RFID read-write antenna is used to collect the RFID label information of the wine bottle in the wine case;

At least one RFID reader-writer is used to communicate with the RFID read-write antenna, and send the information collected by the RFID read-write antenna to the microprocessor after identification;

The RFID read-write antenna is further connected with the microprocessor through the RFID reader-writer;

The top surface of the RFID read-write antenna faces and is parallel to the plane direction of the RFID label of the wine bottle.

Further, the camera identification module includes at least one camera, and the top surface of the camera faces and is parallel to the plane direction of the two-dimensional code label of the wine bottle.

Further, the sensor identification module includes a temperature sensor, a humidity sensor, a photosensitive sensor and an optical fiber sensor for detecting the freshness of the wine and the remaining amount of wine in the bottle, and the optical fiber sensor, the temperature sensor, the humidity sensor and the photosensitive The sensors are all connected with the microprocessor.

Further, it also includes a mobile intelligent terminal wirelessly connected to a cloud computing data center.

Further, the microprocessor is an ARM Cortex-A8 processor.

Another technical solution adopted by the present invention to solve the technical problem is: a method for realizing an intelligent wine cabinet system, including:

A. According to the radiation range of the RFID antenna and the critical detection area of the antenna, a set number of RFID antennas are evenly arranged in the direction of the wine bottle RFID label in the wine cabinet to ensure that the RFID antenna can radiate and cover the entire range of wine cells; at the same time, in the wine cabinet The cabinet faces the direction of the wine bottle QR code label, and installs a set number of cameras to ensure that the camera can detect and locate the QR code label of the wine bottle in each wine cell;

B. The RFID antenna uses a multi-process antenna concurrent control algorithm to collect the RFID label information of the wine bottle in the wine cabinet, and sends the collected data to the microprocessor; at the same time, the camera monitors the two-dimensional code label information of the wine bottle in the wine cabinet Collect and shape feature information, and send the collected data to the microprocessor;

C, the microprocessor compares the RFID tag data collected by the RFID antenna with the two-dimensional code label data collected by the camera, and judges whether the data of the two are consistent, if so, the microprocessor automatically sends a retrieval command to the cloud computing data center Obtain the required information, otherwise, send an alarm to the user through the microprocessor;

D. The cloud computing data center performs query analysis according to the retrieval instructions of the microprocessor, obtains the data to be retrieved and returns the obtained data to the microprocessor or the user; at the same time, the cloud computing data center automatically uploads the data uploaded by the microprocessor Statistical analysis is carried out to discover the rules of the user's use of the wine cabinet and automatically provide the corresponding wine matching service for the user according to the results of the statistical analysis.

Further, in the step B, the RFID antenna adopts a multi-process antenna concurrent control algorithm to collect the RFID tag information of the wine bottle in the wine cabinet, which is specifically:

Judging whether two RFID antennas exist in the critical detection area of the antenna, if there is, the process of controlling that there is only one RFID antenna in the critical detection area of the antenna is executed, so as to ensure that the processes of the two RFID antennas are mutually in the critical detection area of the antenna. Otherwise, the process of controlling the two RFID antennas is executed concurrently.

Further, step E is also included after step D, and step E is specifically:

The user sends control and access instructions to the local smart wine cabinet or cloud computing data center through the smart terminal device, and receives the information returned by the local smart wine cabinet or cloud computing data center.

The beneficial effect of the system of the present invention is: it includes a microprocessor, an RFID identification module and a camera identification module, adopts the RFID identification and sensor identification cross-comparison mode for identification verification, and the identification accuracy is high; the camera identification module and the sensor identification module are added, It can automatically locate the position or behavior of the wine in the wine cabinet in real time, and it is no longer necessary to obtain the status of the wine in the wine cabinet manually, which is more humanized and intelligent; the cloud computing data center is used to replace the traditional server architecture, which can automatically analyze users Behavior and usage of the wine cabinet and provide users with corresponding services in a timely manner, with a high degree of intelligence.

The beneficial effects of the method of the present invention are as follows: RFID identification and sensor identification cross-validation are used for identification and verification, and the identification accuracy is high; according to the antenna radiation range and the antenna critical detection area, the wine cabinet is equipped with a set number of labels on average in the direction of the label. RFID read and write antennas, and a multi-process antenna concurrent control algorithm is proposed for the problem of same-frequency detection interference among different antennas, which completely avoids the interference problem of multiple antennas and has strong anti-interference ability; , Automatically locate the position or behavior of the wine in the wine cabinet, no need to manually locate it, it is more humanized and intelligent; the cloud computing data center is used to replace the traditional server architecture, and all types recorded in the cloud computing data center can be identified For wine products, it automatically analyzes user behavior and wine cabinet usage and provides users with corresponding services in a timely manner, with a high degree of intelligence.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

Fig. 1 is the structural representation of local intelligent wine cabinet of the present invention;

Fig. 2 is a functional module block diagram of a kind of intelligent wine cabinet system of the present invention;

Fig. 3 is the structural representation of RFID identification module of the present invention;

FIG. 4 is a schematic structural diagram of a camera recognition module of the present invention;

Fig. 5 is a structural block diagram of the sensor identification module of the present invention;

Fig. 6 is a flow chart of the steps of the implementation method of the intelligent wine cabinet system of the present invention;

Fig. 7 is the flow chart after the present invention increases step E;

Fig. 8 is a schematic structural diagram of the second embodiment of the present invention.

Reference signs: 1. RFID tag; 2. RFID read-write antenna; 3. QR code label; 4. Camera.

detailed description

Referring to Figures 1 and 2, a smart wine cabinet system includes a cloud computing data center and a local smart wine cabinet, the local smart wine cabinet includes a cabinet body and an internal wine rack, the internal wine rack is installed in the cabinet, and the The internal wine rack includes at least one layer, and each layer is divided into at least two wine compartments by a partition; the interior of the cabinet is equipped with a microprocessor, a sensor identification module, a liquid crystal touch console, an information transmission interface, and an RFID identification module. , A camera identification module for identifying the two-dimensional code label information and shape feature information of the wine bottle in the wine cellar, the sensor identification module, the liquid crystal touch control console, the information transmission interface, the RFID identification module and the camera identification module are all integrated with the microprocessor The information transmission interface is also connected to the cloud computing data center, and the microprocessor is used to perform concurrent cross-validation according to the data uploaded by the RFID identification module and the camera identification module.

Among them, the cloud computing data center is used to store the collected wine cabinet information and provide retrieval of wine detailed information, so that the microprocessor can obtain and update the detailed information of wine cabinet wine products through network communication with the data center. At the same time, the cloud computing data center can conduct statistics and analysis on the identification data of various wine cabinets, find out the rules of users' use of wine cabinets, and recommend wine products and suitable meal combinations that meet their interests; Analyze the use of the wine cabinet, and make certain notifications in due course (such as a certain bottle of wine is about to run out and a certain bottle of wine is about to expire, etc.).

Referring to Fig. 3, further as a preferred embodiment, the RFID identification module includes:

At least one RFID read-write antenna is used to collect the RFID label information of the wine bottle in the wine case;

At least one RFID reader-writer is used to communicate with the RFID read-write antenna, and send the information collected by the RFID read-write antenna to the microprocessor after identification;

The RFID read-write antenna is further connected with the microprocessor through the RFID reader-writer;

The top surface of the RFID read-write antenna faces and is parallel to the plane direction of the RFID label of the wine bottle.

Among them, the top surface of the RFID read-write antenna faces and is parallel to the plane direction of the RFID tag of the wine bottle, in order to facilitate data collection of the RFID tag.

Referring to FIG. 4 , as a further preferred embodiment, the camera recognition module includes at least one camera, and the top surface of the camera faces and is parallel to the plane direction of the two-dimensional code label of the wine bottle.

Among them, the top surface of the camera faces and is parallel to the plane direction of the two-dimensional code label of the wine bottle, for the convenience of collecting the data of the two-dimensional code label.

Referring to Fig. 5, further as a preferred embodiment, the sensor identification module includes a temperature sensor, a humidity sensor, a photosensitive sensor and an optical fiber sensor for detecting the freshness of the wine and the remaining amount of wine in the wine bottle, the optical fiber Sensors, temperature sensors, humidity sensors and photosensitive sensors are all connected to the microprocessor.

Among them, the temperature sensor and the humidity sensor are used to obtain the temperature and humidity in the wine cabinet.

The photosensitive sensor is used to obtain the brightness in the wine cabinet.

A fiber optic sensor for measuring the freshness of wine in a wine bottle and the remaining amount of wine in a wine bottle through changes in optical properties.

As a further preferred embodiment, it also includes a mobile intelligent terminal wirelessly connected to the cloud computing data center.

The system also includes mobile intelligent terminals (such as mobile phones, etc.), so that users can obtain the required information by communicating with the cloud computing data center.

Further as a preferred embodiment, the microprocessor is an ARMCortex-A8 processor.

Referring to Figure 6, an implementation method of an intelligent wine cabinet system, including:

A. According to the radiation range of the RFID antenna and the critical detection area of the antenna, a set number of RFID antennas are evenly arranged in the direction of the wine bottle RFID label in the wine cabinet to ensure that the RFID antenna can radiate and cover the entire range of wine cells; at the same time, in the wine cabinet The cabinet faces the direction of the wine bottle QR code label, and installs a set number of cameras to ensure that the camera can detect and locate the QR code label of the wine bottle in each wine cell;

B. The RFID antenna uses a multi-process antenna concurrent control algorithm to collect the RFID label information of the wine bottle in the wine cabinet, and sends the collected data to the microprocessor; at the same time, the camera monitors the two-dimensional code label information of the wine bottle in the wine cabinet Collect and shape feature information, and send the collected data to the microprocessor;

C, the microprocessor compares the RFID tag data collected by the RFID antenna with the two-dimensional code label data collected by the camera, and judges whether the data of the two are consistent, if so, the microprocessor automatically sends a retrieval command to the cloud computing data center Obtain the required information, otherwise, send an alarm to the user through the microprocessor;

D. The cloud computing data center performs query analysis according to the retrieval instructions of the microprocessor, obtains the data to be retrieved and returns the obtained data to the microprocessor or the user; at the same time, the cloud computing data center automatically uploads the data uploaded by the microprocessor Statistical analysis is carried out to discover the rules of the user's use of the wine cabinet and automatically provide the corresponding wine matching service for the user according to the results of the statistical analysis.

Wherein, the antenna critical detection area refers to a radiation intersection area between two antennas.

The set number of RFID antennas means that the number and position of RFID antennas can be preset according to the actual size of the wine cabinet and the transmitting power of the antennas.

The set number of cameras means that the number and position of the cameras can be preset according to the actual wine cabinet size and actual needs.

Further as a preferred embodiment, in the step B, the RFID antenna adopts a multi-process antenna concurrent control algorithm to collect the RFID tag information of the wine bottle in the wine cabinet, which is specifically:

Judging whether two RFID antennas exist in the critical detection area of the antenna, if there is, the process of controlling that there is only one RFID antenna in the critical detection area of the antenna is executed, so as to ensure that the processes of the two RFID antennas are mutually in the critical detection area of the antenna. Otherwise, the process of controlling the two RFID antennas is executed concurrently.

Referring to Fig. 7, further as a preferred embodiment, step E is also included after the step D, and the step E is specifically:

The user sends control and access instructions to the local smart wine cabinet or cloud computing data center through the smart terminal device, and receives the information returned by the local smart wine cabinet or cloud computing data center.

The present invention will be further described in detail below in conjunction with specific examples.

Example 1

Referring to Fig. 1 and Fig. 2, the first embodiment of the present invention:

The smart wine cabinet system includes a local smart wine cabinet and a cloud computing data center.

1. Local smart wine cabinet

The local smart wine cabinet includes a cabinet body and an internal wine rack. A microprocessor is embedded inside the wine cabinet, and various sensor identification modules connected to the microprocessor, a liquid crystal touch console, an information transmission interface, an RFID identification module, and a camera identification module. The wine rack is installed in the wine cabinet and includes at least one layer, and each layer is separated by at least two wine compartments by a partition. The following describes the local smart wine cabinet:

(1) RFID identification module

The RFID identification module includes an RFID read-write antenna and an RFID reader-writer. The RFID read-write antenna is used to collect the information of the wine, and the multiple RFID read-write antennas are installed in the wine cabinet. Install one or more antennas in it. The system includes at least one RFID reader-writer, and one RFID reader-writer can correspond to multiple RFID read-write antennas, so as to ensure that the tags of each wine compartment of the entire wine cabinet can be covered. The RFID reader is fixed inside the wine cabinet, is electrically connected to the microprocessor and can communicate stably. After the identification is completed, the RFID reader-writer identifies the information collected by the concurrent work of the RFID read-write antenna and sends it to the microprocessor. In the actual layout, the distance between the RFID read-write antenna and the RFID tag should be as close as possible to avoid the influence of the environment (such as metal and transparent materials, etc.) on RFID identification.

Among them, the optimal power setting of the antenna can be determined by referring to the power density formula of RF electromagnetic waves. The power density formula of RF electromagnetic waves is:

(Formula 1)

Among them, Sr is the power density, Pt is the transmission power of the read-write antenna, Gt is the gain of the read-write antenna, and R is the transmission distance of the read-write antenna. Equation 1 only holds true under ideal conditions, such as in an anechoic chamber free of objects that attenuate the RF signal, external transmitters that may interfere, and multipath effects from the same source that create other interference modes.

The structure and position of the antenna are theoretically calculated and adjusted according to the size and shape of the cabinet. There should be no obstacles in the line of sight between the RFID read-write antenna and the electronic tag. According to the plane electromagnetic field theory, the electric field expression of the electromagnetic wave in the unbounded uniform lossy coal is:

(Formula 2)

Among them, α is the attenuation constant of the electromagnetic wave, indicating the degree of attenuation per unit distance, and the unit is Np/m, 1Np/m=8.686dB/m; β is the phase shift constant, indicating the phase lag per unit distance, α+jβ is Spread constant. It can be seen that the electromagnetic wave loss in coal is related to the characteristics of coal dielectric constant, operating frequency and magnetic permeability. As water, glass, and alcohol are consumable coal substances, their relative dielectric constants are 81, 5, and 24 respectively. RF electromagnetic waves will have a large attenuation when penetrating these media, and it is difficult to transmit reliably through water and alcohol. Therefore, it is necessary to design the wine cabinet and rationally arrange the position of the RFID read-write antenna and the electronic tag, so that there is no obstacle in the line of sight between the RFID read-write antenna and the electronic tag, so as to reduce the propagation loss of radio waves.

When there are no obstacles in the line of sight, the loss (FSL) of RF electromagnetic waves in free space is calculated by the following formula:

(Formula 4)

Among them, r is the reading and writing distance of the reading and writing antenna, and λ is the EM wavelength.

(2) Camera identification module

The camera identification module should include at least one camera, which is fixedly installed in the wine cabinet. The camera recognition module can accurately locate the position of each wine cell and provide a clear image. For low-light environments, lights can be added to each camera. At the same time, the camera can analyze the acquired images to a certain extent. In addition to identifying the two-dimensional code information, it can also identify the behavior and authenticity of the wine in the wine case by identifying the shape features.

(3) Microprocessor

The microprocessor is integrated with commonly used communication interfaces and sensor interfaces, and is used to process all control information, which is the core part of the system. The microprocessor includes controlling the RFID reading antenna to read the RFID tag, the camera to read the image identification and collect the information of each sensor; control the information transmission interface to interact with the cloud computing data center and control the operation of the LCD touch table.

The microprocessor can adopt ARM Cortex-A8 processor. The ARM Cortex-A8 processor belongs to the Cortex-A series and is based on the ARMv7-A architecture. It is ARM's first superscalar processor, featuring technologies to increase code density and performance, NEON ^TM technology for multimedia and signal processing, and support for efficient precompiled and just-in-time compiled Java and other bytecode languages Jazelle® Runtime Compilation Target (RCT) technology. Meanwhile, the ARM Cortex-A8 processor is the first product based on the ARMv7 architecture, capable of boosting speeds from 600MHz to over 1GHz. The Cortex-A8 processor can meet the power optimization requirements of mobile devices that need to operate below 300mW; and the performance optimization requirements of consumer applications that require 2000DhrystoneMIPS.

(4) Sensor identification module

The position of the sensor module is not strictly regulated, it only needs to be reasonably arranged inside the wine cabinet, and the required parameters can be read accurately after testing. Likewise, the sensor is electrically connected to the microprocessor and transmits the read parameters. Cooperating with these sensor modules can provide users with more comprehensive environmental information of the wine cabinet, such as the basic temperature and humidity in the cabinet, the brightness in the cabinet, the remaining capacity of each wine, and the freshness of the wine. The temperature sensor, humidity sensor and photosensitive sensor of the present invention all have the same working principle as the existing temperature sensor, humidity sensor and photosensitive sensor.

The basic working principle of the optical fiber sensor is to send the light from the light source to the modulator through the optical fiber, so that after the parameter to be measured interacts with the light entering the modulation area, the optical properties of the light (such as light intensity, wavelength, frequency, phase, etc.) , partial normal state, etc.) changes, called the modulated signal light, and then use the measured influence on the transmission characteristics of light to complete the measurement. The advantage of fiber optic sensors is that compared with traditional sensors, fiber optic sensors use light as the carrier of sensitive information and optical fibers as the medium for transmitting sensitive information. They have the characteristics of optical fiber and optical measurement, and have a series of unique advantages. Good electrical insulation performance, strong anti-electromagnetic interference ability, non-invasive, high sensitivity, easy to realize long-distance monitoring of the measured signal, corrosion-resistant, explosion-proof, flexible optical path, easy to connect with the computer. Optical fiber sensors are developing in the direction of sensitivity, precision, adaptability, compactness and intelligence. The function of eyes and ears, but also beyond the physiological boundaries of human beings, to receive external information that human sense organs cannot feel.

(5) Other parts

The LCD touch console includes an LCD touch screen or a dot-matrix touch screen, installed above the cabinet, and electrically connected to the microprocessor.

The information transmission interface is electrically connected to the microprocessor, including digital information transmission interfaces such as RJ-45 Ethernet interface, serial port and Bluetooth interface.

The present invention can control and monitor the wine cabinet through terminals such as mobile phones and/or notebook computers through the Internet transmission chain (such as obtaining temperature information, anti-theft information, inventory and individual information of items in the wine cabinet at any time, and the control system is automatically locked. automatically update data, etc.).

2. Cloud Computing Data Center

The local smart wine cabinet is connected to the Internet through an information transmission interface (such as a network interface), and communicates with the cloud computing data center. The main functions of the cloud computing data center are divided into two parts: service and management. In terms of services, it mainly provides users with various cloud-based services, including three levels: infrastructure as a service IaaS, platform as a service PaaS, and software as a service SaaS.

Specifically, in addition to providing retrieval services for wine cabinet information, the data center can also record user behavior, collect and analyze various data, and provide timely feedback of service information to users (such as recommending some products that users may like). Wine, inform users which type of wine needs to be replenished and inform users that a bottle of wine is about to expire, etc.); in terms of management, it is mainly the management of the cloud. Its function is to ensure the safety and stability of the entire cloud computing center run smoothly and can be effectively managed.

The RFID read-write antenna, camera and various sensors are electrically connected to the microprocessor. After the microprocessor collects the sensory information, it performs certain analysis and verification processing, and then transmits the processed information data to the cloud computing data center through the network. .

The cloud computing data center stores the collected wine cabinet information, and provides the retrieval service of wine detailed information, and the microprocessor can realize the acquisition and update of the wine cabinet wine product detailed information through network communication with the cloud computing data center; , the cloud computing data center can count and analyze the identification data of various wine cabinets, find out the rules of users' use of wine cabinets, and recommend wine products and suitable meal combinations for users. In addition, the cloud computing data center can also analyze the usage of the wine cabinet through the collected information, and give certain notifications in due course (such as a bottle of wine is almost finished, a bottle of wine is about to expire, etc.).

Example 2

The concrete work process of the present invention is described below:

(1) System preparation

a. Set up a system according to Figures 1-5 of the present invention, and add RFID electronic tags and two-dimensional code tags containing individual identification information to each bottle of wine. Since the wine bottle is generally cylindrical, the present invention can adopt an RFID paper adhesive label with a diameter of 10mm and a two-dimensional code label with a diameter of 12mm*12mm. When labeling, the two-dimensional code label can be combined with the RFID label, and the two-dimensional code label can be placed on the surface and attached to the wine bottle cap together, so as to facilitate the detection of the RFID read-write antenna and the camera, and avoid the placement and rotation of the wine bottle Effect of angle on recognition. Multiple RFID antennas are arranged in the wine cabinet to cover the entire range of wine compartments with radiation, so that when each bottle of wine enters the cabinet, the label faces the direction of the antenna, and there are no obstacles in the field of vision. At the same time, according to the reading and writing distance of the RFID antenna, debug and set the transmission power with low power consumption.

Take a wine cabinet with only one wine storage layer with a length of 100 cm and a width of 10 cm as an example. The wine storage layer contains 10 wine compartments, each with a length of 10 cm and a width of 10 cm. Assuming that an RFID read-write antenna is currently in use, it is required to select a more appropriate transmit power Pt under +20dBm. We can set the transmission power Pt to decrease from +20dBm, and record the corresponding reading and writing distance R. Finally, when the reading and writing distance meets the requirements, the power density under ideal conditions is constant. relationship, choose The power at the maximum value is used as the transmitting power of the antenna.

Assuming that the optimal transmit power obtained by the above method is calculated and measured as +15dBm, and the corresponding average maximum reliable read-write distance for tags (different from the maximum read-write distance, which is the maximum distance that can stably identify tags) is calculated as 10cm. Since 10cm×2×5=100cm At this time, five RFID read-write antennas are evenly installed horizontally facing the label to cover the entire range of wine cells in theory. However, in order to have better stability in the actual RFID detection, it is necessary to reserve a certain amount of redundancy in the layout. Therefore, in this example, 6 RFID read-write antennas can be arranged horizontally and evenly, so that there is a gap between two antennas. (6×20-5×20)/5=4cm radiation intersection area, which is the critical area for antenna detection.

In the same way, for multi-layer wine cabinets, the method of this example can also be used in the antenna layout, and the antenna positions can be arranged evenly from the horizontal and vertical directions, so as to complete the antenna layout of the entire wine cabinet.

b. Install several cameras in the wine cabinet (the specific number can be flexibly set according to actual needs) to ensure that the QR code label of each item placed in the wine cabinet can be clearly detected and accurately positioned.

c. Electrically connect the microprocessor with the RFID reader and camera, and at the same time connect other components of the system (such as sensor modules, touch screen consoles, etc.), and ensure that each module communicates with the microprocessor normally and can be networked. The installed system is shown in Figure 8.

(2) System operation

a. When the wine cabinet is closed: the display screen of the touch screen console displays the general information of the current wine cabinet, including the total number of wine in the wine cabinet, network parameters, environmental information in the cabinet such as temperature, humidity, brightness, etc. in the cabinet. The user does not need to open the wine cabinet, but only needs to interact with the touch screen to obtain the detailed information of the wine stored in the wine cabinet (including the item's out/in information, storage location information, authenticity information, origin information, freshness and the remaining amount of wine in each bottle, etc.), very convenient and quick.

b. Wine into the cabinet: When the user adds a wine to a certain wine compartment in the cabinet, it is responsible for monitoring that part of the RFID read-write antenna and the camera work at the same time, confirming the request information for the wine, and through the network from the cloud computing data center Obtain the detailed information of the wine, update the relevant content, and display the information of the wine on the screen of the touch screen console or the user's terminal. The information displayed includes the name of the wine, the information of coming out/in, the location information, the authenticity information, the freshness of the origin information, and the remaining amount of wine in each bottle.

c. Wine out of the cabinet: Similar to wine in the cabinet, when the user takes out a wine, the wine cabinet will automatically identify and output the information displaying the wine for the user to view.

d. Counterfeit items entering the cabinet: If the wine is not authentic, the system can identify it immediately, issue a warning through a buzzer, etc., and send relevant warning information to the user at the same time.

e. Stealing and changing behaviors: The wine cabinet system detects the behavior and characteristics of wine products at all times. If there are non-alcoholic items in the wine cabinet, it will call the police immediately. At the same time, when the wine cabinet is in the protection state, if the wine in the cabinet is taken away, the system will also alarm.

f. Multiple RFID read-write antennas placed in the wine cabinet are identified and detected concurrently, which can identify the RFID electronic tags in each wine cabinet. At the same time, the camera also identifies the contents of the cabinet. The data identified by the two detection methods will be transmitted to the microprocessor. The microprocessor verifies and analyzes the data, and if the information of the item is read correctly, it will automatically send a retrieval command to the cloud computing data center.

h. The perceptual information collected by each sensor in real time, such as the temperature and humidity in the cabinet collected by the temperature and humidity sensor, the freshness collected by the optical fiber sensor, and the parameters related to the remaining wine, etc., are transmitted to the microprocessor through electrical connection, and the microprocessor collects After each sensing information, simple classification processing is performed, and then sent to the cloud computing data center for real-time storage and update.

i. Users can send control and access commands to the smart wine cabinet or cloud computing data center through local or terminal devices (such as mobile phones, laptops, etc.), and can receive information from the smart wine cabinet or cloud computing data center. The cloud computing data center can store the corresponding information of the item, including the item's out/in cabinet information, storage location information, authenticity information, origin information, freshness, and the remaining alcohol content of each bottle of wine, etc.

j. The cloud computing data center collects wine product information of the wine cabinet and user behavior information, analyzes the data to analyze user behavior and the status of the wine cabinet, and timely feeds back service information to the user (such as telling the user that a certain bottle of wine is almost finished, a certain bottle Wine was expiring as well etc). At the same time, it can also find out the rules of users using the wine cabinet, and recommend wine products and suitable meal combinations that meet their interests.

The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the described embodiments, and those skilled in the art can also make various equivalent deformations or replacements without violating the spirit of the present invention. , these equivalent modifications or replacements are all within the scope defined by the claims of the present application.

Claims (3)

1. A method for realizing an intelligent wine cabinet system, comprising: A. According to the radiation range of the RFID antenna and the critical detection area of the antenna, a set number of RFID antennas are evenly arranged in the direction of the wine bottle RFID label in the wine cabinet to ensure that the RFID antenna can radiate and cover the entire range of wine cells; at the same time, in the wine cabinet The cabinet faces the direction of the wine bottle QR code label, and installs a set number of cameras to ensure that the camera can detect and locate the QR code label of the wine bottle in each wine cell; B. The RFID antenna uses a multi-process antenna concurrent control algorithm to collect the RFID label information of the wine bottle in the wine cabinet, and sends the collected data to the microprocessor; at the same time, the camera monitors the two-dimensional code label information of the wine bottle in the wine cabinet Collect and shape feature information, and send the collected data to the microprocessor; C, the microprocessor compares the RFID tag data collected by the RFID antenna with the two-dimensional code label data collected by the camera, and judges whether the data of the two are consistent, if so, the microprocessor automatically sends a retrieval command to the cloud computing data center Obtain the required information, otherwise, send an alarm to the user through the microprocessor; D. The cloud computing data center performs query analysis according to the retrieval instructions of the microprocessor, obtains the data to be retrieved and returns the obtained data to the microprocessor or the user; at the same time, the cloud computing data center automatically uploads the data uploaded by the microprocessor Statistical analysis is carried out to discover the rules of the user's use of the wine cabinet and automatically provide the corresponding wine matching service for the user according to the results of the statistical analysis. 2. The realization method of a kind of intelligent wine cabinet system according to claim 1, is characterized in that, among the described step B, RFID antenna adopts the antenna concurrency control algorithm of multi-process to collect the RFID tag information of the wine bottle in the wine cabinet This step is specifically: Judging whether two RFID antennas exist in the critical detection area of the antenna, if there is, the process of controlling that there is only one RFID antenna in the critical detection area of the antenna is executed, so as to ensure that the processes of the two RFID antennas are mutually in the critical detection area of the antenna. Otherwise, the processes controlling the two RFID antennas are executed concurrently. 3. The realization method of a kind of intelligent wine cabinet system according to claim 1, is characterized in that, after described step D also comprises step E, described step E, it is specifically: The user sends control and access instructions to the local smart wine cabinet or cloud computing data center through the smart terminal device, and receives the information returned by the local smart wine cabinet or cloud computing data center.