CN118450434B - RFID intelligent interaction device and method - Google Patents

Abstract

The invention provides an RFI D intelligent interaction device and method, wherein the device comprises: the radio frequency information acquisition subsystem is used for acquiring the radio frequency information of the target staff card; the data exchange subsystem is used for carrying out data exchange between the target worker card and the application system of the target worker card according to the radio frequency information based on the ad hoc network technology and the load balancing technology; and the result return subsystem is used for returning the current work order of the application system according to the exchange result of the data exchange. According to the RFI D intelligent interaction device and method, the radio frequency information of the target personnel card is obtained, the ad hoc network technology and the load balancing technology are introduced, the data exchange between the radio frequency information and the application system is carried out, the data exchange result is returned to the corresponding current work order, the anti-fault capability of the whole system is improved due to the decentralised network structure, in addition, the load is reasonably distributed, the interaction delay is reduced, and the data transmission speed is improved.

Description

RFID intelligent interaction device and method

Technical Field

The present invention relates to the technical field of radio frequency chips, and in particular to an RFID intelligent interaction device and method.

Background Art

RFID (Radio Frequency Identification) is a contactless automatic identification technology that automatically identifies target objects within a certain distance through radio waves and obtains relevant data without the need to establish mechanical or optical contact between the identification system and the specific target. The RFID system mainly consists of two parts: the reader and the electronic tag. The reader sends a radio frequency signal through the antenna. After the tag receives the signal, it sends the internally stored data information back to the reader. The reader then decodes the received data information and uploads it to the computer system for processing.

The invention patent with application number: CN201010126979.9 discloses a medical information interaction system based on RFID technology, including an RFID tag for storing and communicating tag data associated with patients, and having a unique electronic code corresponding to the patient; an RFID handheld terminal, which is a PDA that can read and write RFID tags and perform data processing and transmission, including an RFID read-write module for reading the RFID tags and writing stored data; an RFID antenna and a WIFI module for wireless transmission; a database for data transmission with the RFID handheld terminal, which is used to store medical information data associated with patients; a system server for data transmission with the database, and a plurality of clients for data transmission and processing with the system server. The above invention facilitates medical staff to perform mobile medical information interaction processing and patient identification, and effectively improves work efficiency and hospital operation efficiency.

However, the above-mentioned prior art does not disclose the networking method for data exchange based on the WIFI module. The common networking method is based on fixed infrastructure, such as using network devices such as routers and switches. The constructed network requires pre-planning and deployment of network devices. When the device fails, communication interruption events are prone to occur, and the ability to resist failures is weak. In addition, the amount of data processed by each network node is also different. When a node processes a large amount of data, network congestion is prone to occur, reducing the data transmission rate.

In view of this, there is an urgent need for an RFID intelligent interaction device and method to at least solve the above-mentioned deficiencies.

Summary of the invention

One of the purposes of the present invention is to provide an RFID intelligent interaction device and method, which obtains the radio frequency information of the target employee card, introduces self-organizing network technology and load balancing technology, exchanges data between the radio frequency information and the application system, and returns the data exchange results to the corresponding current work order. The decentralized network structure improves the ability of the entire system to resist failures. In addition, the load is reasonably distributed, the interaction delay is reduced, and the data transmission speed is improved.

An embodiment of the present invention provides an RFID intelligent interaction device, comprising:

The radio frequency information acquisition subsystem is used to obtain the radio frequency information of the target employee card;

The data exchange subsystem is used to exchange data between the target employee card and the application system of the target employee card based on the self-organizing network technology and the load balancing technology according to the radio frequency information;

The result return subsystem is used to return the current work order of the application system according to the exchange result of data exchange.

Preferably, the radio frequency information acquisition subsystem includes:

A read/write terminal determination module is used to determine the read/write terminal of the target employee card;

RFID tag activation module, used to activate RFID tags through a read-write terminal;

A response information acquisition module, used to acquire response information of an activated RFID tag;

The radio frequency information determination module is used to determine the radio frequency information according to the response information.

Preferably, the RFID tag activation module comprises:

A working equipment determination submodule is used to determine the working equipment of the space where the read/write terminal is located;

An operating frequency band acquisition submodule is used to obtain the operating frequency band of the working equipment;

A pre-selected activation frequency band determination submodule is used to determine the pre-selected activation frequency band of the RFID tag;

The target activation frequency band acquisition submodule is used to eliminate the operating frequency band in the pre-selected activation frequency band to obtain the target activation frequency band;

The tag activation submodule is used to control the read/write terminal to emit radio waves in the target activation frequency band to activate the RFID tag.

Preferably, the response information acquisition module includes:

The response time acquisition submodule is used to obtain the response time of the response information;

A historical interaction task determination submodule is used to determine the historical interaction task according to the response time;

A frame time slot design record acquisition submodule is used to acquire a frame time slot design record;

A frame time slot feature extraction template determination submodule is used to determine a frame time slot feature extraction template according to the frame time slot design record;

The first frame time slot feature extraction submodule is used to extract the first frame time slot feature in the historical interaction task through the frame time slot feature extraction template;

Setting information base acquisition submodule, used to obtain frame time slot characteristics - dynamic frame time slot setting information base;

A dynamic frame time slot setting information determination submodule is used to perform feature matching between the first frame time slot feature and the second frame time slot feature in the frame time slot feature-dynamic frame time slot setting information library, and determine the dynamic frame time slot setting information corresponding to the second frame time slot feature that matches;

The reader/writer setting submodule is used to perform corresponding settings of the RFID reader/writer according to the dynamic frame time slot setting information.

Preferably, the tag activation submodule includes:

A shooting device determining unit, used to determine a shooting device preset in the space;

A shooting range acquisition unit, used to acquire the shooting range of the shooting device;

A first target shooting device determining unit, used to determine a first target shooting device among the shooting devices that can shoot the reading and writing terminal according to the shooting range and the location of the reading and writing terminal;

A first shot video acquisition unit, used to acquire a first shot video of a first target shooting device;

A first control unit of the read/write terminal, configured to determine a personnel action sequence of a first target person according to the first captured video, and control the read/write terminal to emit radio waves in a target activation frequency band based on the personnel action sequence;

Wherein, the first control unit of the read/write terminal includes:

A first target person identification subunit is used to try to identify a first target person within a radius preset by the reader/writer terminal according to the first captured video;

A personnel action sequence acquisition subunit, for acquiring the personnel action sequence of the first target person based on the behavior monitoring technology if the acquisition attempt is successful;

The card recognition action determination subunit is used to perform card recognition action determination according to the personnel action sequence;

The first control subunit of the reader/writer terminal is used to control the reader/writer terminal to emit radio waves of a target activation frequency band if the result of the card recognition action determination is to perform card recognition.

Preferably, the tag activation submodule further includes:

A second target shooting device determining unit, used to determine a second target shooting device among the shooting devices that cannot shoot the reader/writer terminal;

A second shot video acquisition unit, used to acquire a second shot video of a second target shooting device;

A card recognition trend determination result determination unit, used to determine a card recognition trend determination result of a second target person based on the second captured video;

The second control unit of the reader/writer terminal is used to control the reader/writer terminal to emit radio waves of a target activation frequency band if the card recognition trend determination result is that there is a card recognition trend.

Preferably, the card recognition trend determination result determination unit includes:

A shooting field of view determination subunit, used to determine the shooting field of view of the second target shooting device according to the second shooting video;

A first target line determination subunit, used to determine a first target line between a midpoint of the shooting field of view and a location of the read/write terminal;

A personnel position determination subunit, used to determine the personnel position of a second target person in the second captured video;

A second target line determination subunit is used to obtain a second target line between the personnel position and the midpoint of the shooting field of view;

An angle reduction speed acquisition subunit, used for acquiring an angle reduction speed of an angle between a first target line and a second target line according to a second captured video;

An approach speed determination subunit, used to determine an approach speed of the second target person approaching the reader/writer terminal according to the second captured video;

The card recognition trend determination result determination subunit is used to determine the card recognition trend determination result of the second target person according to the angle reduction speed and the approach speed.

Preferably, the data exchange subsystem includes:

Ad hoc network module, used to automatically access the target network of the application system based on the ad hoc network technology and radio frequency information;

The load balancing module is used to automatically balance the network load of the target network according to the amount of data transmitted by each network node after accessing the target network.

Preferably, the self-organizing network module includes:

The access gateway registration submodule is used to configure the air rate of the target channel of the target network and register the access gateway of the target network according to the radio frequency information;

The access information acquisition submodule is used to obtain the access information of the access gateway, and the access information includes: the access information, the information to be accessed and the RSSI value of the access gateway;

The access quantity determination submodule is used to determine the access quantity of the access gateway according to the access information;

The gateway switching determination submodule is used to switch the backup gateway if the number of accesses reaches a preset access number threshold, otherwise it is not necessary;

The first gateway switching submodule is used to perform corresponding switching if the backup gateway needs to be switched;

The second switching submodule of the gateway is used to parse the waiting access information, obtain the most recent waiting access task, and register the waiting access task to the access gateway if there is no need to switch the backup gateway;

The channel switching judgment submodule is used to judge whether it is necessary to switch the target channel according to the access information and the RSSI value of the access gateway;

The target channel switching submodule is used to automatically switch the target channel if it is necessary to switch the target channel.

An RFID intelligent interaction method provided by an embodiment of the present invention includes:

Step 1: Obtain the radio frequency information of the target employee card;

Step 2: Based on the self-organizing network technology and load balancing technology, data exchange is performed between the target employee card and the application system of the target employee card according to the radio frequency information;

Step 3: Return the current work order of the application system based on the exchange result of the data exchange.

Preferably, step 1: obtaining the radio frequency information of the target employee card includes:

Determine the reader/writer terminal of the target employee card;

Activate the RFID tag through the read/write terminal;

Get the response information of the activated RFID tag;

According to the response information, the radio frequency information is determined.

The beneficial effects of the present invention are:

The present invention obtains the radio frequency information of the target employee card, introduces self-organizing network technology and load balancing technology, exchanges data between the radio frequency information and the application system, and returns the data exchange result to the corresponding current work order. The decentralized network structure improves the ability of the entire system to resist failures. In addition, the load is reasonably distributed, the interaction delay is reduced, and the data transmission speed is improved.

Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures specifically pointed out in the present application documents.

The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

FIG1 is a schematic diagram of an RFID intelligent interaction device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an RFID intelligent interaction method in an embodiment of the present invention.

DETAILED DESCRIPTION

The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

The embodiment of the present invention provides an RFID intelligent interaction device, as shown in FIG1 , comprising:

The radio frequency information acquisition subsystem 1 is used to acquire the radio frequency information of the target employee card; wherein the target employee card is: a card embedded with a radio frequency tag; the radio frequency information is: the radio frequency signal transmitted back to the reader after the target employee card receives the electromagnetic wave emitted by the reader;

Data exchange subsystem 2, used for exchanging data between the target employee card and the application system of the target employee card based on the self-organizing network technology and load balancing technology according to the radio frequency information; the application system is: a back-end software system for processing radio frequency information, such as: an employee attendance system; data exchange refers to the process in which the RFID card reader obtains radio frequency information from the target employee card and sends the radio frequency information to the application system;

The result return subsystem 3 is used to return the current work order of the application system according to the exchange result of the data exchange. The exchange result is: the feedback or operation result given by the application system after receiving and processing the data from the radio frequency information; the current work order is: the task assigned to the employee holding the target employee card, such as: employee attendance task.

The working principle and beneficial effects of the above technical solution are:

This application obtains the radio frequency information of the target employee card, introduces self-organizing network technology and load balancing technology, exchanges data between the radio frequency information and the application system, and returns the data exchange results to the corresponding current work order. The decentralized network structure improves the ability of the entire system to resist failures. In addition, it reasonably distributes the load, reduces interaction delays, and improves data transmission speed.

In one embodiment, the radio frequency information acquisition subsystem includes:

The read/write terminal determination module is used to determine the read/write terminal of the target employee card; wherein the read/write terminal is: an RFID reader, which is a device that can emit electromagnetic waves and receive radio frequency signals returned by the RFID card;

The RFID tag activation module is used to activate the RFID tag through the read/write terminal; wherein the RFID tag activation is: the read/write terminal sends a radio frequency signal to the RFID tag to activate the RFID tag;

The response information acquisition module is used to obtain the response information of the activated RFID tag; wherein the response information is: the feedback information fed back by the RFID tag to the read/write terminal, and the feedback information is the information in the RFID tag, such as: employee personal information, location data and status update, etc.;

The radio frequency information determination module is used to determine the radio frequency information according to the response information.

The working principle and beneficial effects of the above technical solution are:

The present application activates the RFID tag of the target employee card through the reader/writer terminal of the target employee card, obtains the response information of the activated RFID tag, determines the radio frequency information according to the response information, and improves the accuracy of obtaining the radio frequency information.

In one embodiment, the RFID tag activation module includes:

The working equipment determination submodule is used to determine the working equipment of the space where the reader/writer terminal is located; the space is: the place where the reader/writer terminal is located, such as: the warehouse where the reader/writer terminal is located; the working equipment is: all the equipment using radio communication that is running in the space except the target employee card;

The operating frequency band acquisition submodule is used to acquire the operating frequency band of the working equipment; wherein the operating frequency band is: the radio frequency range used by the working equipment during normal operation;

The pre-selected activation frequency band determination submodule is used to determine the pre-selected activation frequency band of the RFID tag; wherein the pre-selected activation frequency band is: a series of radio frequencies that can be activated and are pre-set by the RFID tag;

The target activation frequency band acquisition submodule is used to eliminate the operating frequency band in the pre-selected activation frequency band to obtain the target activation frequency band;

The tag activation submodule is used to control the read/write terminal to emit radio waves in the target activation frequency band to activate the RFID tag.

The working principle and beneficial effects of the above technical solution are:

When the read/write terminal activates the RFID tag in the space where it is located, there may be other devices using radio communication in the space. If the communication frequency bands overlap, interference may occur. Therefore, the present application introduces the operating frequency band of the working equipment in the space where the read/write terminal is located and the pre-selected activation frequency band of the RFID tag, and eliminates the operating frequency band in the pre-selected activation frequency band to obtain the target activation frequency band. The read/write terminal is controlled to emit radio waves of the target activation frequency band to activate the RFID tag, thereby avoiding interference with other working equipment and improving the stability and accuracy of data transmission.

In one embodiment, the response information acquisition module includes:

The response time acquisition submodule is used to acquire the response time of the response information; wherein the response time is: the time when the response information responds, for example: 14:00;

The historical interaction task determination submodule is used to determine the historical interaction task according to the response time; wherein the historical interaction task is: RFID read and write data in the same time period as the response time, for example: RFID tag information read at 14:00 every day in history;

The frame time slot design record acquisition submodule is used to acquire the frame time slot design record; wherein the frame time slot design record is: a process record of the frame time slot design during the communication process of the reading and writing tasks of the RFID reader/writer designed manually according to the needs;

The frame time slot feature extraction template determination submodule is used to determine the frame time slot feature extraction template according to the frame time slot design record; wherein the frame time slot feature extraction template is: a template for automatically extracting relevant information of the frame time slot design according to the design task, and the frame time slot feature extraction template is obtained by learning the frame time slot design record;

The first frame time slot feature extraction submodule is used to extract the first frame time slot feature in the historical interaction task through the frame time slot feature extraction template; wherein the first frame time slot feature is: the relevant information of the frame time slot design extracted in the historical interaction task, such as: the number of radio frequency tags in the historical interaction;

The setting information base acquisition submodule is used to acquire the frame time slot feature-dynamic frame time slot setting information base; wherein the frame time slot feature-dynamic frame time slot setting information base includes: a plurality of one-to-one corresponding second frame time slot features and pre-selected dynamic frame time slot setting information;

A dynamic frame time slot setting information determination submodule is used to perform feature matching between the first frame time slot feature and the second frame time slot feature in the frame time slot feature-dynamic frame time slot setting information library, and determine the dynamic frame time slot setting information corresponding to the second frame time slot feature that matches;

The reader/writer setting submodule is used to perform corresponding settings of the RFID reader/writer according to the dynamic frame time slot setting information.

The working principle and beneficial effects of the above technical solution are:

When obtaining the radio frequency information of the target employee card, there are situations where multiple target employee cards are identified at the same time. When the number of time slots is not enough to accommodate all active tags, there is a data collision. Therefore, this application determines the RFID read and write data (historical interaction task) in the same time period as the response time. A frame time slot feature extraction template is formulated according to the frame time slot design record. Based on the frame time slot feature extraction template and the historical interaction task, the first frame time slot feature is determined, that is, the relevant information of the frame time slot design extracted from the historical interaction task. The first frame time slot feature is feature matched with the preset frame time slot feature-the second frame time slot feature in the dynamic frame time slot setting information library, the dynamic frame time slot setting information is determined, and the corresponding settings of the RFID reader are performed, which avoids data collisions caused by insufficient time slot allocation and improves communication efficiency.

In one embodiment, the tag activation submodule includes:

A shooting device determining unit, used to determine a shooting device preset in the space;

A shooting range determination unit is used to obtain the shooting range of the shooting device; wherein the shooting range is: the spatial range of the space where the shooting device can capture;

A first target shooting device determining unit, used to determine a first target shooting device among the shooting devices that can shoot the reading and writing terminal according to the shooting range and the location of the reading and writing terminal;

A first captured video acquisition unit is used to acquire a first captured video of a first target capturing device; wherein the first captured video is: a video stream including a reading and writing terminal captured by the first target capturing device;

The first control unit of the reading and writing terminal is used to determine the personnel action sequence of the first target person according to the first shot video, and control the reading and writing terminal to emit radio waves of the target activation frequency band based on the personnel action sequence; wherein the first target person is: the recognition result of a person within a radius range preset by the reading and writing terminal, and the recognition result of the person is determined by identifying the first shot video based on the human body model recognition technology; the personnel action sequence is: the action sequence obtained by identifying the first target person and sorting the identified actions according to time;

Wherein, the first control unit of the read/write terminal includes:

A first target person identification subunit is used to try to identify a first target person within a radius range preset by the reader/writer terminal according to the first captured video; wherein the preset radius range is manually preset;

A personnel action sequence acquisition subunit is used to acquire the personnel action sequence of the first target person based on the behavior monitoring technology if the acquisition attempt is successful;

The card recognition action determination subunit is used to perform card recognition action determination according to the personnel action sequence; wherein the card recognition action determination is: determining whether there is a card recognition action, when determining, obtaining a preset standard card recognition action sequence set, performing action sequence matching between the personnel action sequence and the standard card recognition action sequence in the standard card recognition action sequence set, and if the action sequence matching is successful, the result of the card recognition action determination is to perform card recognition;

The first control subunit of the reader/writer terminal is used to control the reader/writer terminal to emit radio waves of a target activation frequency band if the result of the card recognition action determination is to perform card recognition.

The working principle and beneficial effects of the above technical solution are:

The present application determines the first target shooting device that can shoot the read/write terminal according to the shooting range of the shooting device in the space and the location of the read/write terminal. According to the video stream containing the read/write terminal shot by the first target shooting device, the first target person near the read/write terminal is determined. The action sequence of the first target person is obtained, and the card recognition action is determined according to the action sequence of the person. When it is determined that the first target person is performing card recognition, the read/write terminal is controlled to emit radio waves in the target activation frequency band, thereby reducing the energy consumption of the system.

In one embodiment, the tag activation submodule further includes:

A second target shooting device determining unit, used to determine a second target shooting device among the shooting devices that cannot shoot the reader/writer terminal;

A second captured video acquisition unit is used to acquire a second captured video of a second target capturing device; wherein the second captured video is: a video stream of a space captured by the second target capturing device;

The card recognition trend determination result determination unit is used to determine the card recognition trend determination result of the second target person according to the second shot video; wherein the second target person is: the person identified in the second shot video, and the determination method is the same as the first target person; the card recognition trend determination result is: the result of determining whether there is a card recognition trend;

The second control unit of the reader/writer terminal is used to control the reader/writer terminal to emit radio waves of a target activation frequency band if the card recognition trend determination result is that there is a card recognition trend.

The working principle and beneficial effects of the above technical solution are:

When the camera cannot directly capture the reader/writer terminal, it cannot directly determine whether a person has performed a card recognition action. Therefore, the present application obtains a video stream (second captured video) of the space captured by the second target camera, and determines whether the second target person has a card recognition trend based on the second captured video. If so, the reader/writer terminal is controlled to emit radio waves in the target activation frequency band, which is more appropriate.

In one embodiment, the card recognition trend determination result determination unit includes:

The shooting field of view determination subunit is used to determine the shooting field of view of the second target shooting device according to the second shooting video; wherein the shooting field of view is: the result obtained by splicing all the pictures shot by the second target shooting device;

A first target line determination subunit is used to determine a first target line between a midpoint of the shooting field of view and a location of the read/write terminal; wherein a determination rule for the midpoint of the shooting field of view is manually preset; when determining the first target line, the shooting field of view is mapped correspondingly in a distribution map of the space where the shooting field of view is located, and a line segment obtained by connecting a mark point of the location of the read/write terminal in the distribution map and a mark point of a mapping point of the midpoint of the shooting field of view is used as the first target line;

A personnel position determination subunit, used to determine the personnel position of a second target person in the second captured video;

A second target line determination subunit is used to obtain a second target line between the position of the person and the midpoint of the shooting field of view; wherein the second target line is: a line segment obtained by connecting the marking point of the position of the person in the distribution map of the space and the marking point of the mapping point of the midpoint of the shooting field of view;

An angle reduction speed acquisition subunit is used to obtain an angle reduction speed of the connection angle between the first target connection line and the second target connection line according to the second captured video; wherein the angle reduction speed is: subtracting the current connection angle from the initial connection angle to obtain the angle difference, dividing the angle difference by the angle calculation time difference between the initial connection angle and the current connection angle (the angle calculation time difference is a positive value), the initial connection angle is the angle between the first target connection line and the second target connection in the first video frame of the second captured video, the current connection angle is the angle between the first target connection line and the second target connection in the last video frame of the second captured video, and the angle calculation time difference is the time difference between the first video frame in the second captured video and the last video frame in the second captured video;

The approach speed determination subunit is used to determine the approach speed of the second target person approaching the reader/writer terminal according to the second captured video; wherein the approach speed is: the distance difference between the initial target distance and the current target distance divided by the distance calculation time difference (the distance calculation time difference is a positive value), the target distance is: the distance between the position of the second target person and the position of the reader/writer terminal, the initial target distance is the target distance in the first video frame in the second captured video, the current target distance is the target distance in the last video frame, and the distance calculation time difference is consistent with the angle calculation time difference;

The card recognition trend determination result determination subunit is used to determine the card recognition trend determination result of the second target person according to the angle reduction speed and the approach speed. When determining the card recognition trend determination result of the second target person according to the angle reduction speed and the approach speed, the angle reduction speed and the approach speed are normalized according to a preset rule, and the normalized result is compared with a preset trend determination standard to determine the card recognition trend determination result.

The working principle and beneficial effects of the above technical solution are:

When determining the result of the card recognition trend determination, the present application introduces the shooting field of view of the second target shooting device. Determine the first target line between the midpoint of the shooting field of view and the location of the read/write terminal, and at the same time, determine the second target line between the position of the second target person and the midpoint of the shooting field of view. Calculate the angle reduction speed of the angle between the first target line and the second target line, and at the same time, determine the approach speed of the second target person approaching the read/write terminal, normalize the angle reduction speed and the approach speed, and compare the normalized result with the preset trend determination standard to determine the card recognition trend determination result, thereby improving the accuracy of the card recognition trend determination.

In one embodiment, the data exchange subsystem includes:

A self-organizing network module is used to automatically access the target network of the application system based on the radio frequency information based on the self-organizing network technology; wherein the self-organizing network technology allows the sending nodes corresponding to the radio frequency information to be autonomously organized and configured to form a dynamic network connection;

The load balancing module is used to automatically balance the network load of the target network according to the amount of data transmitted by each network node after accessing the target network. The network node is a dynamic network communication node formed by autonomously organizing and configuring the sending node corresponding to the radio frequency information.

The working principle and beneficial effects of the above technical solution are:

This application introduces self-organizing network technology and load balancing technology to exchange data between the target employee card and the application system, which improves the system's ability to resist failures and increases the data exchange rate.

In one embodiment, the self-organizing network module includes:

The access gateway registration submodule is used to configure the air rate of the target channel of the target network and register the access gateway of the target network according to the radio frequency information; wherein the target network is: a dynamic network connection formed by various network nodes; the air rate is: the data transmission rate set on the target network; the access gateway is: a node that connects the RFID reader and the target network and realizes communication;

The access information acquisition submodule is used to obtain the access information of the access gateway, and the access information includes: the accessed information, the information to be accessed, and the RSS I value of the access gateway; wherein the accessed information is: the RFID reader/writer that has been registered with the access gateway; the information to be accessed is: the RFID reader/writer that is ready to be registered with the access gateway; the RSS I value is: the energy strength of the wireless signal corresponding to the access gateway;

The access quantity determination submodule is used to determine the access quantity of the access gateway according to the access information;

The gateway switching determination submodule is used to switch the backup gateway if the access quantity reaches a preset access quantity threshold, otherwise it is not necessary; wherein the preset access quantity threshold is manually preset, for example: 40;

The first gateway switching submodule is used to perform corresponding switching if the backup gateway needs to be switched;

The second switching submodule of the gateway is used to parse the access information if the backup gateway does not need to be switched, obtain the most recent access task, and register the access task to the access gateway; wherein the access task is: the access information of the most recent RFID reader that needs to be accessed;

The channel switching judgment submodule is used to judge whether it is necessary to switch the target channel according to the access information and the RSSI value of the access gateway; wherein the target channel is: the communication channel between the access gateway and the RFID reader/writer. When judging whether it is necessary to switch the target channel, the higher the number of accesses and the lower the RSSI value, the more necessary it is to switch;

The target channel switching submodule is used to automatically switch the target channel if it is necessary to switch the target channel.

The working principle and beneficial effects of the above technical solution are:

When the radio frequency information is registered to the access gateway, the application obtains the access information, the information to be accessed and the RSS I value of the access gateway. According to the access information, the access number of the access gateway is determined, and when the access number reaches the preset access number threshold, the backup gateway is switched. In addition, the RSS I value of the access gateway is introduced, and the switching determination of the target channel is made according to the access information and the RSS I value of the access gateway. If it is determined that switching is required, the target channel is switched, which improves the rationality and suitability of the self-organizing network process.

The embodiment of the present invention provides an RFID intelligent interaction method, as shown in FIG2 , including:

Step 1: Obtain the RF information of the target employee card;

Step 2: Based on the self-organizing network technology and load balancing technology, data exchange is performed between the target employee card and the application system of the target employee card according to the radio frequency information;

Step 3: Return the current work order of the application system based on the exchange result of the data exchange.

In one embodiment, step 1: obtaining radio frequency information of a target employee card includes:

Determine the reader/writer terminal of the target employee card;

Activate the RFID tag through the read/write terminal;

Get the response information of the activated RFID tag;

According to the response information, the radio frequency information is determined.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (4)

1. An RFID intelligent interaction device, comprising: The radio frequency information acquisition subsystem is used to obtain the radio frequency information of the target employee card; The data exchange subsystem is used to exchange data between the target employee card and the application system of the target employee card based on the self-organizing network technology and the load balancing technology according to the radio frequency information; The result return subsystem is used to return the current work order of the application system according to the exchange result of data exchange; Radio frequency information acquisition subsystem, including: A read/write terminal determination module is used to determine the read/write terminal of the target employee card; RFID tag activation module, used to activate RFID tags through a read-write terminal; A response information acquisition module, used to acquire response information of an activated RFID tag; A radio frequency information determination module, used to determine the radio frequency information according to the response information; The response information acquisition module includes: The response time acquisition submodule is used to obtain the response time of the response information; A historical interaction task determination submodule is used to determine the historical interaction task according to the response time; A frame time slot design record acquisition submodule is used to acquire a frame time slot design record; A frame time slot feature extraction template determination submodule is used to determine a frame time slot feature extraction template according to the frame time slot design record; The first frame time slot feature extraction submodule is used to extract the first frame time slot feature in the historical interaction task through the frame time slot feature extraction template; Setting information base acquisition submodule, used to obtain frame time slot characteristics - dynamic frame time slot setting information base; A dynamic frame time slot setting information determination submodule is used to perform feature matching between the first frame time slot feature and the second frame time slot feature in the frame time slot feature-dynamic frame time slot setting information library, and determine the dynamic frame time slot setting information corresponding to the second frame time slot feature that matches; The reader setting submodule is used to perform corresponding settings of the RFID reader according to the dynamic frame time slot setting information; the RFID tag activation module includes: A working equipment determination submodule is used to determine the working equipment of the space where the read/write terminal is located; An operating frequency band acquisition submodule is used to obtain the operating frequency band of the working equipment; A pre-selected activation frequency band determination submodule is used to determine the pre-selected activation frequency band of the RFID tag; The target activation frequency band acquisition submodule is used to eliminate the operating frequency band in the pre-selected activation frequency band to obtain the target activation frequency band; The tag activation submodule is used to control the read/write terminal to emit radio waves of the target activation frequency band to activate the RFID tag; Tag activation submodule, including: A shooting device determining unit, used to determine a shooting device preset in the space; A shooting range acquisition unit, used to acquire the shooting range of the shooting device; A first target shooting device determining unit, used to determine a first target shooting device among the shooting devices that can shoot the reading and writing terminal according to the shooting range and the location of the reading and writing terminal; A first shot video acquisition unit, used to acquire a first shot video of a first target shooting device; A first control unit of the read/write terminal, configured to determine a personnel action sequence of a first target person according to the first captured video, and control the read/write terminal to emit radio waves in a target activation frequency band based on the personnel action sequence; The first control unit of the read/write terminal comprises: A first target person identification subunit is used to try to identify a first target person within a radius preset by the reader/writer terminal according to the first captured video; A personnel action sequence acquisition subunit is used to acquire the personnel action sequence of the first target person based on the behavior monitoring technology if the acquisition attempt is successful; The card recognition action determination subunit is used to perform card recognition action determination according to the personnel action sequence; The first control subunit of the reader/writer terminal is used to control the reader/writer terminal to emit radio waves of a target activation frequency band if the result of the card recognition action determination is to perform card recognition; The tag activation submodule also includes: A second target shooting device determining unit, used to determine a second target shooting device among the shooting devices that cannot shoot the reader/writer terminal; A second shot video acquisition unit, used to acquire a second shot video of a second target shooting device; A card recognition trend determination result determination unit, used to determine a card recognition trend determination result of a second target person based on the second captured video; The second control unit of the reader/writer terminal is used to control the reader/writer terminal to emit radio waves of a target activation frequency band if the card recognition trend determination result is that there is a card recognition trend; The card recognition trend determination result determination unit comprises: A shooting field of view determination subunit, used to determine the shooting field of view of the second target shooting device according to the second shooting video; A first target line determination subunit, used to determine a first target line between a midpoint of the shooting field of view and a location of the read/write terminal; A personnel position determination subunit, used to determine the personnel position of a second target person in the second captured video; A second target line determination subunit is used to obtain a second target line between the personnel position and the midpoint of the shooting field of view; An angle reduction speed acquisition subunit, used for acquiring an angle reduction speed of an angle between a first target line and a second target line according to a second captured video; An approach speed determination subunit, used to determine an approach speed of the second target person approaching the reader/writer terminal according to the second captured video; The card recognition trend determination result determination subunit is used to determine the card recognition trend determination result of the second target person according to the angle reduction speed and the approach speed. 2. The RFID intelligent interaction device according to claim 1, wherein the data exchange subsystem comprises: Ad hoc network module, used to automatically access the target network of the application system based on the ad hoc network technology and radio frequency information; The load balancing module is used to automatically balance the network load of the target network according to the amount of data transmitted by each network node after accessing the target network. 3. The RFID intelligent interactive device according to claim 2, wherein the ad hoc network module comprises: The access gateway registration submodule is used to configure the air rate of the target channel of the target network and register the access gateway of the target network according to the radio frequency information; The access information acquisition submodule is used to obtain the access information of the access gateway, and the access information includes: the access information, the information to be accessed and the RSSI value of the access gateway; The access quantity determination submodule is used to determine the access quantity of the access gateway according to the access information; The gateway switching determination submodule is used to switch the backup gateway if the number of accesses reaches a preset access number threshold, otherwise it is not necessary; The first gateway switching submodule is used to perform corresponding switching if the backup gateway needs to be switched; The second switching submodule of the gateway is used to parse the access information, obtain the most recent access task, and register the access task to the access gateway if the backup gateway does not need to be switched; The channel switching judgment submodule is used to judge whether the target channel needs to be switched according to the access information and the RSSI value of the access gateway; The target channel switching submodule is used to automatically switch the target channel if it is necessary to switch the target channel. 4. An RFID intelligent interaction method, characterized by comprising: Step 1: Obtain the RF information of the target employee card; Step 2: Based on the self-organizing network technology and load balancing technology, data exchange is performed between the target employee card and the application system of the target employee card according to the radio frequency information; Step 3: Return the current work order of the application system according to the exchange result of the data exchange; Step 1: Obtain the RF information of the target employee card, including: Determine the reader/writer terminal of the target employee card; Activate the RFID tag through the read/write terminal; Get the response information of the activated RFID tag; Determine radio frequency information according to the response information; Get the response information of the activated RFID tag, including: Get the response time of the response information; Determine historical interaction tasks based on response time; Get frame time slot design record; According to the frame time slot design record, determine the frame time slot feature extraction template; Extract the first frame time slot feature in the historical interaction task through the frame time slot feature extraction template; Get frame time slot characteristics-dynamic frame time slot setting information library; Perform feature matching on the first frame time slot feature and the second frame time slot feature in the frame time slot feature-dynamic frame time slot setting information library, and determine the dynamic frame time slot setting information corresponding to the second frame time slot feature that matches; According to the dynamic frame time slot setting information, the RFID reader is set accordingly; Activate RFID tags through the read/write terminal, including: Determine the working equipment of the space where the read/write terminal is located; Obtain the operating frequency band of the working equipment; Determine the pre-selected activation frequency band of the RFID tag; Eliminate the operating frequency band in the pre-selected activation frequency band to obtain the target activation frequency band; Control the read/write terminal to emit radio waves of the target activation frequency band to activate the RFID tag; Control the read/write terminal to emit radio waves of the target activation frequency band to activate the RFID tag, including: Determine the camera device preset in the space; Obtaining the shooting range of the shooting device; According to the shooting range and the location of the reader/writer terminal, determine a first target shooting device among the shooting devices that can shoot the reader/writer terminal; Acquire a first captured video of a first target shooting device; Determine a personnel action sequence of the first target person according to the first shot video, and control the read/write terminal to emit radio waves in a target activation frequency band based on the personnel action sequence; Determining a personnel action sequence of a first target person according to the first shot video, and controlling the read/write terminal to emit radio waves in a target activation frequency band based on the personnel action sequence, including: According to the first captured video, attempt to identify a first target person within a radius preset by the reader/writer terminal; If the acquisition attempt is successful, the action sequence of the first target person is acquired based on the behavior monitoring technology; According to the personnel action sequence, card recognition action determination is performed; If the result of the card recognition action determination is to perform card recognition, the reader/writer terminal is controlled to emit radio waves of the target activation frequency band; Eliminating the operating frequency band in the pre-selected activation frequency band to obtain the target activation frequency band also includes: Determine a second target photographing device among the photographing devices that cannot photograph the reader/writer terminal; Acquire a second captured video of a second target shooting device; Determine the card recognition trend determination result of the second target person according to the second shot video; If the card recognition trend determination result is that there is a card recognition trend, the read/write terminal is controlled to emit radio waves of the target activation frequency band; Determine the card recognition trend determination result of the second target person according to the second shot video, including: Determining a shooting field of view of a second target shooting device according to the second shooting video; Determine a first target line connecting the midpoint of the shooting field of view and the location of the read/write terminal; Determine the position of the second target person in the second captured video; Obtain the second target line between the personnel position and the midpoint of the shooting field of view; According to the second captured video, obtaining a speed of decreasing an angle between an angle between a first target line and a second target line; Determine, based on the second captured video, the approach speed of the second target person approaching the reader/writer terminal; The card recognition trend judgment result of the second target person is determined according to the angle reduction speed and the approach speed.