CN205621039U - Rfid tag and rfid system - Google Patents

Abstract

The utility model provides an RFID tag and an RFID system, the RFID tag includes a first communication module, a data processing module and an RFID module; the first communication module is used to establish a communication connection with an information collection device to obtain the information The information collected by the collection device; the data processing module is connected to the first communication module and the RFID module, and the data processing module processes the information collected by the information collection device obtained by the first communication module, and output the information obtained through the processing through the RFID module. The RFID tag provided by the utility model not only has the function of object identification, but also can realize the collection, processing and transmission of information.

Description

RFID tags and RFID systems

technical field

The utility model relates to the technical field of radio frequency identification, in particular to an RFID tag and an RFID system.

Background technique

With the rapid development of Internet of Things (IoT) technology, the demand for Internet of Things terminal equipment will increase sharply in the future. As the ID card of each device in the Internet of Things era, RFID (Radio Frequency Identification) technology is Fabrication process occupies a major market share. However, the existing RFID technology is only used as a means to identify objects, and cannot perform the functions of information collection and processing.

Utility model content

(1) Technical problems to be solved

The technical problem to be solved by the utility model is to provide an RFID tag and an RFID system, which can realize the collection, processing and transmission of information.

(2) Technical solution

In order to solve the above technical problems, the technical solution of the present utility model provides an RFID tag, including a first communication module, a data processing module and an RFID module;

The first communication module is used to establish a communication connection with the information collection device, so as to obtain the information collected by the information collection device;

The data processing module is connected with the first communication module and the RFID module, the data processing module processes the information collected by the information collection device obtained by the first communication module, and will pass through the processing The obtained information is output through the RFID module.

Preferably, it also includes a storage module connected to the data processing module, the storage module is used to store the information collected by the information collection device obtained by the first communication module and the information obtained through the processing.

Preferably, a power module is also included.

Preferably, the power module includes a battery and a charging device connected to the battery.

Preferably, the battery is a nickel metal hydride battery or a lithium ion battery, and the charging device is a wireless charging device or a solar charging device.

Preferably, the RFID module includes an RFID tag antenna and an RFID tag circuit, and the RFID tag circuit includes a demodulator, a modulator, a logic control circuit, and a memory chip;

The demodulator is connected to the RFID tag antenna and the logic control circuit, and the demodulator is used to demodulate the signal received by the RFID tag antenna from the outside, and send the demodulated signal to the logic control circuit;

The logic control circuit is connected with the modulator and the storage chip, and the logic control circuit is used to decode the signal received from the demodulator, and store the information in the storage chip according to the decoded information. information sent to the modulator;

The modulator is connected to the RFID tag antenna, and the modulator is used for modulating the signal received from the logic control circuit, and transmitting the modulated signal through the RFID tag antenna.

Preferably, the RFID tag circuit further includes a rectifier connected to the RFID tag antenna, and the rectifier is used to convert the radio frequency signal received by the RFID tag antenna from AC to DC to provide an operating voltage for the RFID module .

Preferably, the data processing module includes a processor and a clock connected to the processor, and the clock is used to provide working timing for the processor.

Preferably, the first communication module includes at least one of the following: Bluetooth communication unit, Zigbee communication unit.

In order to solve the above technical problems, the utility model also provides an RFID system, including:

the aforementioned RFID tags;

The information collection device;

The RFID reader is used to receive the information output by the RFID tag through the RFID module.

Preferably, the first communication module of the RFID tag determines whether to establish a communication connection with the information collection device by detecting the signal strength of the information collection device.

Preferably, a control device is further included, the control device controls the first communication module to establish a communication connection with the information collection device according to the information input by the user.

Preferably, the control device enables the first communication module to establish a communication connection with the information collection device by writing the identity information of the RFID tag into the information collection device.

Preferably, the information collection device includes a sensor, a digital-to-analog conversion module, and a second communication module;

The digital-to-analog conversion module is connected to the sensor and the second communication module, and the digital-to-analog conversion module converts the information collected by the sensor from an analog signal into a digital signal and then outputs it through the second communication module.

Preferably, the sensor includes at least one of the following: a temperature sensor, a humidity sensor, a position sensor, a speed sensor, and an image sensor.

Preferably, the information collected by the information collection device includes at least one of the following: speed information of the vehicle, characteristic information of the vehicle, and position information of the vehicle;

The RFID tag analyzes and processes the information collected by the information collection device, and sends the result of the analysis and processing to the traffic monitoring center through the RFID reader.

Preferably, the RFID tag also sends the analysis and processing results to the vehicle through the information collection device.

Preferably, the information collected by the information collection device includes at least one of the following: temperature information of the environment where the goods are located, humidity information of the environment where the goods are located, and location information of the goods;

The RFID tag analyzes and processes the information collected by the information collection device, and sends the result of the analysis and processing to the logistics monitoring center through the RFID reader.

Preferably, the information collected by the information collection device includes at least one of the following: drug buyer information, drug information, drug amount information, payment information;

The RFID tag analyzes and processes the information collected by the information collection device, and sends the result of the analysis and processing to the automatic medicine fetching system through the RFID reader.

(3) Beneficial effects

The RFID tag provided by the utility model collects the information collected by the information collection device through the first communication module, and the collected information can be processed by the data processing module and then output through the RFID module, so that the RFID tag can not only have the function of object identification It can also realize the collection, processing and transmission of information.

Description of drawings

Fig. 1 is the schematic diagram of a kind of RFID tag that the utility model embodiment provides;

Fig. 2 is a schematic diagram of another RFID tag provided by the embodiment of the present invention;

Fig. 3 is a schematic diagram of an RFID system provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of the communication between the RFID tag and the information collection device in the RFID system provided by the embodiment of the present invention;

Fig. 5 is a schematic diagram of the communication between the RFID tag and multiple information collection devices in the RFID system provided by the embodiment of the present invention.

detailed description

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

Referring to Fig. 1, Fig. 1 is a schematic diagram of an RFID tag provided by an embodiment of the present invention, the RFID tag includes a first communication module 100, a data processing module 200 and an RFID module 300;

The first communication module 100 is used to establish a communication connection with the information collection device, so as to obtain the information collected by the information collection device;

The data processing module 200 is connected to the first communication module 100 and the RFID module 300, the data processing module 200 processes the information collected by the information collection device acquired by the first communication module 100, and The information obtained through the processing is output through the RFID module 300 .

The RFID tag provided by the embodiment of the utility model collects the information collected by the information collection device through the first communication module, and the collected information can be processed by the data processing module and then output through the RFID module, so that the RFID tag can not only have objects The identification function can also realize the collection, processing and transmission of information.

The RFID module in the above-mentioned RFID tag can establish a communication connection with the RFID reader, which can include an RFID tag circuit and an RFID tag antenna;

Preferably, the above-mentioned RFID tag may further include a storage module connected to the data processing module, the storage module is used to store the information collected by the information collection device acquired by the first communication module and the information obtained through the processing. Information.

Referring to Fig. 2, Fig. 2 is a schematic diagram of another RFID tag provided by the embodiment of the present invention, the RFID tag includes a first communication module 100, a data processing module 200, an RFID module 300 and a storage module 400;

Wherein, the first communication module 100 is used to establish a communication connection with the information collection device to obtain the information collected by the information collection device, for example, it may include a Bluetooth communication unit and/or a Zigbee communication unit, because the energy consumed by the above communication methods is relatively low , so as to reduce the power supply pressure;

The data processing module 200 is connected with the first communication module 100 and the RFID module 300. The data processing module 200 processes the information collected by the information collection device obtained by the first communication module 100, and outputs the processed information through the RFID module 300. As shown in Figure 2, the data processing module may include a processor 210 and a clock 220, and the clock 220 is connected to the processor 210 to provide working timing to the processor 210;

The RFID module 300 is used to establish a communication connection with the RFID reader, which includes an RFID tag circuit 310 and an RFID tag antenna 320. For example, the RFID tag circuit 310 can generally include a demodulator, a modulator, a logic control circuit, and a memory chip;

The demodulator is connected to the RFID tag antenna and the logic control circuit, and the demodulator is used to demodulate the signal received by the RFID tag antenna from the outside, and send the demodulated signal to the logic control circuit;

The logic control circuit is connected with the modulator and the storage chip, and the logic control circuit is used to decode the signal received from the demodulator, and store the information in the storage chip according to the decoded information. information sent to the modulator;

The modulator is connected to the RFID tag antenna, and the modulator is used to modulate the signal received from the logic control circuit, and transmit the modulated signal through the RFID tag antenna, wherein the modulator can Use a low frequency signal to modulate the high frequency oscillation, so that the signal can be transmitted by the RFID tag antenna;

For the above-mentioned RFID tag, the data processing module can write the information to be sent into the storage chip of the RFID module, so that the information to be sent can be sent out through the RFID module;

Preferably, the above-mentioned RFID tag circuit 310 can also include a rectifier connected to the RFID tag antenna, which can convert the radio frequency signal received by the RFID tag antenna 320 from AC to DC to provide an operating voltage for the RFID module;

The storage module 400 is configured to store the information collected by the information collection device acquired by the first communication module 100 and the information obtained through the processing.

Preferably, the above-mentioned RFID tag can also include a power module to supply power to the entire RFID tag, which can include a battery and a charging device connected to the battery, and the charging device is used to charge the battery, wherein the battery can It is an ordinary nickel-metal hydride battery, an ordinary lithium-ion battery (in the case that the size of the RFID tag is not high), or a thin-film lithium-ion battery. The charging device can be wireless charging or solar charging. At the same time, the above-mentioned power supply can also be equipped with a temporary Supercapacitors for energy storage devices to provide temporary power in the absence of sunlight or wireless charging facilities.

In addition, the embodiment of the present utility model also provides a kind of RFID system, referring to Fig. 3, this RFID system comprises above-mentioned RFID label 1, information collecting device 2 and RFID reader 3, wherein, RFID reader 3 is used for receiving described The information output by the RFID tag through the RFID module;

In order to realize the collection of information and establish a communication connection with the RFID tag, the information collection device 2 can include a sensor, a digital-to-analog conversion module and a second communication module, and the digital-to-analog conversion module is connected to the sensor and the second communication module, The digital-to-analog conversion module converts the information collected by the sensor from an analog signal into a digital signal and then outputs it through the second communication module.

As shown in Figure 4, the information collection device 2 may include a sensor 10, a digital-to-analog conversion module 20 and a second communication module 30, the second communication module 30 is used to communicate with the RFID tag 1, and the information collected by the sensor 10 is converted through digital-to-analog conversion After the module is processed, it can be sent to the RFID tag 1 through the second communication module 30, wherein the second communication module 30 of the information collection device 2 can also use low-power communication methods such as Bluetooth and Zigbee;

For the above-mentioned RFID system, the way of establishing communication between the RFID tag 1 and the information collection device 2 can be as follows:

The first method: RFID tags actively search for signals from nearby information collection devices, and determine which information collection devices to pair with through signal strength analysis. Specifically, the first communication module of the RFID tag determines by detecting the signal strength of the information collection device Whether to establish a communication connection with the information collection device, for example, when the first communication module of the RFID tag judges that the signal strength of the information collection device is greater than a preset value, then the first communication module of the RFID tag establishes a communication connection with the information collection device. Ways to reduce labor costs;

The second way: adding a control device, that is, adding a control device in the above-mentioned RFID system, the control device controls the first communication module to establish a communication connection with the information collection device according to the information input by the user, that is, uses the control The device (such as a mobile phone) is paired, for example, after the RFID tag and the information collection device are connected to the control device, the user will be provided to choose which information collection device the RFID tag is connected to;

For example, the control device can establish a communication connection between the first communication module and the information collection device by writing the identity information of the RFID tag into the information collection device. During use, the user can Write the identity information of the RFID tag into the information collection device that needs to be paired (the corresponding signal processing and storage functions can be added to the information collection device). Pairing, compared with the first method, this method can reduce the probability of pairing errors.

In order to collect different types of information, the sensors in the information collection device may include at least one of the following: a temperature sensor, a humidity sensor, a position sensor, a speed sensor, and an image sensor.

The above-mentioned RFID system can include multiple information collection devices, each information collection device can include different sensors, multiple information collection devices can simultaneously match and communicate with RFID tags, and input different types of information to RFID tags, for example, can be in The monitoring object is equipped with a variety of information collection devices to measure various parameters (such as temperature, speed, position, humidity, etc.) The measured parameter information is processed, stored, and sent.

As shown in Figure 5, the RFID tag 1 can establish a communication connection with the information collection device 21, the information collection device 22 and the information collection device 23 at the same time, wherein, the sensor in the information collection device 21 can be a temperature sensor, and the information collection device 22 The sensor may be a humidity sensor, and the sensor in the information collection device 23 may be a position sensor.

Among them, the above-mentioned RFID system of the utility model can be used in fields such as intelligent transportation, intelligent logistics, and intelligent pharmacy.

When the above-mentioned RFID system is used for intelligent transportation, the information collected by the information collection device may include at least one of the following: speed information of the vehicle, characteristic information of the vehicle, and position information of the vehicle;

The RFID tag analyzes and processes the information collected by the information collection device, and sends the result of the analysis and processing to the traffic monitoring center through the RFID reader.

In addition, the RFID tag can also send the analysis and processing results to the vehicle through the information collection device.

For example, the above-mentioned RFID tag can be loaded on the traffic sign (the loading can be attached to the traffic sign in the form of sticking, or it can be included in the traffic sign in the form of embedding), and the information collection device is installed in the vehicle. RFID tags collect information from various information collection devices in passing vehicles (such as speed, vehicle characteristics, personnel information, etc.), and conduct integrated analysis through the processor in the RFID tag, and then use the display device that comes with the traffic sign to display Display the analyzed results or push information to the vehicle through the information collection device, monitor and guide the traffic flow, provide personalized information services, etc. Simpler applications, such as, every vehicle passing by a traffic sign equipped with an RFID tag The vehicle will send vehicle speed information to the RFID tag through the information collection device. The RFID tag judges whether the vehicle is speeding according to the received information, and sends feedback information to the vehicle to avoid the vehicle speeding. In addition, the RFID tag can also determine Traffic flow information (the number of passing vehicles per unit time), so as to obtain the congestion situation of the road ahead, so as to guide the vehicles to divert and avoid traffic jams. More personalized applications, such as a network formed by a large number of traffic signs loaded with the above-mentioned RFID tags, can track vehicle journeys and push travel information along the way in real time (such as accommodation, shopping, tourist attractions, etc.).

When the above-mentioned RFID system is used in intelligent logistics, the information collected by the information collection device may include at least one of the following: temperature information of the environment where the goods are located, humidity information of the environment where the goods are located, and location information of the goods;

The RFID tag analyzes and processes the information collected by the information collection device, and sends the result of the analysis and processing to the logistics monitoring center through the RFID reader.

For example, logistics control nodes loaded with RFID tags can be installed on logistics channels such as highways and warehouses. The logistics control node provides a variety of information services for logistics vehicles and logistics control centers by receiving and processing logistics information sent by various information collection devices in passing logistics vehicles. aspect. The application on the road is similar to the above-mentioned intelligent transportation application. The logistics control node (loaded with the above-mentioned RFID tag) can monitor the trajectory and speed of the logistics vehicle (loaded with the above-mentioned information collection device) and provide traffic information for the vehicle. Another application can be in fresh-keeping logistics. The information collection device in the logistics vehicle sends the temperature and humidity information in the fresh-keeping vehicle to the RFID tag. The RFID tag analyzes and processes the received information to determine the freshness status information of the goods. The RFID tag passes through the RFID reader. Communicate with the logistics monitoring center or other terminals, and send fresh-keeping status information in real time. Once the fresh-keeping status information is abnormal, the logistics vehicle can be notified in time to check and deal with the abnormal situation in time. The application in warehousing is mainly reflected in the realization of unattended warehousing. After the transport vehicle arrives at the warehouse, the information collection device in the vehicle sends the transport cargo information to the RFID tag. After the RFID tag receives the information, it calculates and feeds back the unloading/ Storage location, and adjust the storage environment in time through other controllers in the warehouse to meet the needs of transported items.

When the above-mentioned RFID system is used in an intelligent pharmacy, the information collected by the information collection device may include at least one of the following: drug buyer information, drug information, drug amount information, and payment information;

The RFID tag analyzes and processes the information collected by the information collection device, and sends the result of the analysis and processing to the automatic medicine fetching system through the RFID reader.

For example, RFID tags can be installed in hospital pharmacies to implement unattended fully automatic drug purchase and retrieval. For example, the basic information of drug buyers can be written into the information collection device in advance. After entering the drug purchase waiting area, the RFID tag can identify the information of multiple drug buyers at the same time, including the drug buyer's name, age, drug information to be purchased, drug amount information, and payment information, etc. After the information identification is completed, the RFID tag The processor in the device will process the drug purchase request according to the time sequence of signal reception. For example, if the payment information is paid, the RFID tag will establish a communication connection with the automatic drug collection system (such as robotic arm drug collection) through the RFID reader, and the RFID tag will Send a medicine taking instruction to the automatic medicine taking system, and the medicine will be transported to the medicine taking window through the automatic medicine taking system, and the name of the medicine buyer will be called through the broadcast to remind the medicine to be taken. If the payment information is unpaid, the RFID tag will pass through the RFID reader and the automatic The medicine taking system (such as taking medicine with a robot arm) establishes a communication connection and sends a payment prompt command to the automatic medicine taking system. The automatic medicine taking system can prompt the drug buyer to pay at the payment counter through a broadcast call.

The above embodiments are only used to illustrate the utility model, but not to limit the utility model. Those of ordinary skill in the relevant technical fields can also make various changes and modifications without departing from the spirit and scope of the utility model. , so all equivalent technical solutions also belong to the category of the utility model, and the patent protection scope of the utility model should be defined by the claims.

Claims (19)

1. An RFID tag, characterized in that, comprises a first communication module, a data processing module and an RFID module; The first communication module is used to establish a communication connection with the information collection device, so as to obtain the information collected by the information collection device; The data processing module is connected with the first communication module and the RFID module, the data processing module processes the information collected by the information collection device obtained by the first communication module, and will pass through the processing The obtained information is output through the RFID module. 2. The RFID tag according to claim 1, further comprising a storage module connected to the data processing module, the storage module is used to store the information collected by the first communication module obtained by the information collection device information and the information obtained through the processing. 3. The RFID tag according to claim 1, further comprising a power supply module. 4. The RFID tag according to claim 3, wherein the power module comprises a battery and a charging device connected to the battery. 5. The RFID tag according to claim 4, wherein the battery is a nickel metal hydride battery or a lithium ion battery, and the charging device is a wireless charging device or a solar charging device. 6. The RFID tag according to claim 1, wherein the RFID module includes an RFID tag antenna and an RFID tag circuit, and the RFID tag circuit includes a demodulator, a modulator, a logic control circuit and a memory chip; The demodulator is connected to the RFID tag antenna and the logic control circuit, and the demodulator is used to demodulate the signal received by the RFID tag antenna from the outside, and send the demodulated signal to the logic control circuit; The logic control circuit is connected with the modulator and the storage chip, and the logic control circuit is used to decode the signal received from the demodulator, and store the information in the storage chip according to the decoded information. information sent to the modulator; The modulator is connected to the RFID tag antenna, and the modulator is used for modulating the signal received from the logic control circuit, and transmitting the modulated signal through the RFID tag antenna. 7. The RFID tag according to claim 6, wherein the RFID tag circuit also includes a rectifier connected to the RFID tag antenna, and the rectifier is used to convert the radio frequency signal received by the RFID tag antenna into an alternating current converted to direct current to provide working voltage to the RFID module. 8 . The RFID tag according to claim 1 , wherein the data processing module includes a processor and a clock connected to the processor, and the clock is used to provide working timing for the processor. 9. The RFID tag according to any one of claims 1-8, wherein the first communication module comprises at least one of the following: a Bluetooth communication unit, a Zigbee communication unit. 10. An RFID system, characterized in that, comprising: The RFID tag according to any one of claims 1-9; The information collection device; The RFID reader is used to receive the information output by the RFID tag through the RFID module. 11. The RFID system according to claim 10, wherein the first communication module of the RFID tag determines whether to establish a communication connection with the information collection device by detecting the signal strength of the information collection device. 12. The RFID system according to claim 10, further comprising a control device, the control device controls the first communication module to establish a communication connection with the information collection device according to the information input by the user. 13. The RFID system according to claim 12, wherein the control device makes the first communication module communicate with the information collection device by writing the identity information of the RFID tag into the information collection device Establish a communication connection. 14. The RFID system according to any one of claims 10-13, wherein the information collection device comprises a sensor, a digital-to-analog conversion module and a second communication module; The digital-to-analog conversion module is connected to the sensor and the second communication module, and the digital-to-analog conversion module converts the information collected by the sensor from an analog signal into a digital signal and then outputs it through the second communication module. 15. The RFID system according to claim 14, wherein the sensor comprises at least one of the following: a temperature sensor, a humidity sensor, a position sensor, a speed sensor, and an image sensor. 16. The RFID system according to any one of claims 10-13, wherein the information collected by the information collection device includes at least one of the following: speed information of the vehicle, characteristic information of the vehicle, and position information of the vehicle; The RFID tag analyzes and processes the information collected by the information collection device, and sends the result of the analysis and processing to the traffic monitoring center through the RFID reader. 17. The RFID system according to claim 16, wherein the RFID tag also sends the analysis and processing results to the vehicle through the information collection device. 18. The RFID system according to any one of claims 10-13, wherein the information collected by the information collection device includes at least one of the following: temperature information of the environment where the goods are located, humidity information of the environment where the goods are located , the location information of the goods; The RFID tag analyzes and processes the information collected by the information collection device, and sends the result of the analysis and processing to the logistics monitoring center through the RFID reader. 19. The RFID system according to any one of claims 10-13, wherein the information collected by the information collection device includes at least one of the following: drug buyer information, drug information, drug amount information, and payment information; The RFID tag analyzes and processes the information collected by the information collection device, and sends the result of the analysis and processing to the automatic medicine fetching system through the RFID reader.