CN220543357U - Internet of things tag and reading system - Google Patents

Abstract

The utility model provides an Internet of things tag and a reading system, and belongs to the technical field of Internet of things. The tag of the Internet of things comprises: a passive RFID module and an active RFID module; the passive RFID module is connected with the active RFID module; the passive RFID module stores tag data. The tag of the Internet of things has the advantages of both a source RFID and a passive RFID, so that the tag is suitable for more application scenes. Meanwhile, the tag data are stored in the passive RFID module, and the data are accessed in the same data area by adopting a passive reader-writer mode and an active reader-writer mode, so that the sources of the tag data acquired in any scene are the same, the read tag data are more reliable, and the reliability of tag data reading is improved.

Description

Internet of things tag and reading system

Technical Field

The utility model relates to the technical field of the Internet of things, in particular to an Internet of things tag and an Internet of things tag reading system.

Background

Radio frequency identification technology (Radio Frequency Identification, RFID) is an automatic identification technology that starts in the 90 s of the 20 th century, and uses radio frequency signals to achieve contactless information transfer through spatial coupling (alternating magnetic or electromagnetic fields) and achieve identification through the transferred information.

The internet of things tag in the prior art is divided into an active RFID and a passive RFID, wherein the active RFID consists of an RFID chip, a power amplification chip and an antenna, and is different from a passive radio frequency activation mode, the active RFID supplies power to the tag by a battery, and the communication distance can be 100-2000 m or even more. However, active RFID requires frequent battery replacement, resulting in higher use costs; meanwhile, as the identification distance is far, the products in the field range can not be accurately identified due to the fact that misreading is very easy in the logistics storage link and the access control channel process. The passive RFID does not need to replace a battery and is not easy to read by mistake, but the passive RFID and the reader-writer antenna have large volume and large space requirement, thereby increasing the volume and the weight and increasing the carrying burden of field operators; the passive RFID reader-writer module has large power taking requirements on a mobile operation terminal, a Bluetooth back clamp and an industrial flat plate in order to obtain a better identification distance and increase the transmitting power, so that the endurance time of original equipment can be reduced; meanwhile, the tag reading distance is within 30 m. The passive RFID reader-writer antenna is sensitive to an application environment, the debugging difficulty is high, and the reading distance can be influenced by slightly changing the use environment.

Therefore, the existing tag of the internet of things cannot have the advantages of both the source RFID and the passive RFID, so that the use scene is limited.

Disclosure of Invention

The embodiment of the utility model aims to provide an Internet of things tag and an Internet of things tag reading system, wherein the Internet of things tag can have the advantages of a source RFID and a passive RFID at the same time, and is suitable for more application scenes.

To achieve the above object, a first aspect of the present application provides an internet of things tag, including: a passive RFID module and an active RFID module; the passive RFID module is connected with the active RFID module; the passive RFID module stores tag data.

In an embodiment of the present application, the active RFID module includes a first communication interface, and the passive RFID module includes a second communication interface, where the first communication interface is connected to the second communication interface.

In this embodiment of the present application, the first communication interface and the second communication interface are I2C interfaces.

In an embodiment of the present application, the active RFID module further includes: the system comprises a first radio frequency unit, a control unit and a safety unit; the signal output end of the first radio frequency unit is connected with the signal input end of the control unit, the output end of the control unit is connected with the input end of the safety unit, and the output end of the safety unit is connected with the first communication interface.

In this embodiment of the present application, the passive RFID module further includes a processor unit, where the processor unit is connected to the second communication interface, and the processor unit stores tag data.

In an embodiment of the present application, the active RFID module further includes a power supply unit, where the power supply unit is configured to supply power to the first communication interface, the first radio frequency unit, the control unit, and the security unit.

In this embodiment of the application, the power supply unit includes solar device, little can control chip and energy storage device, solar device's output with little can control chip's input is connected, little can control chip's output with energy storage device's input is connected, first communication interface, first radio frequency unit, control unit and safety element's input respectively with energy storage device's output is connected.

The first aspect of the present application provides an internet of things tag reading system, comprising: the reader-writer and the tag of the Internet of things;

the Internet of things tag is used for acquiring a data reading signal sent by the reader-writer, reading tag data according to the data reading signal and sending the tag data to the reader-writer.

In the embodiment of the application, the tag of the internet of things is divided into a tag of a passive internet of things and a tag of an active internet of things, wherein the tag of the passive internet of things comprises a passive RFID module, and the tag of the active internet of things comprises an active RFID module; a transmission relay module is arranged between the passive internet of things tag and the active internet of things tag, and the passive internet of things tag and the active internet of things tag are respectively connected with the transmission relay module; the passive internet of things tag and the active internet of things tag are arranged in different devices.

In this embodiment of the present application, the reader is a terminal device, and the terminal device is connected to a device where the active internet of things tag is located.

Through the technical scheme, the passive RFID module and the active RFID module are arranged; the passive RFID module is connected with the active RFID module, the passive RFID module can be used for realizing short-distance identification, the active RFID module and the passive RFID module can realize long-distance identification together, the passive Internet of things tag data is accessed through the active RFID reader-writer, and the identification distance is far greater than that of the passive RFID reader-writer, so that the passive RFID tag can be applied to various scenes, and meanwhile, compared with the Internet of things tag with the active RFID in the prior art, the product in the field range cannot be accurately identified due to the fact that the product in the field range is easy to misread in the scene with the short distance, and the accurate tag data can be obtained by directly adopting the passive RFID module to work by adopting the Internet of things tag of the embodiment. The tag of the Internet of things has the advantages of both a source RFID and a passive RFID, so that the tag is suitable for more application scenes. Meanwhile, the tag data are stored in the passive RFID module, and the data are accessed in the same data area by adopting a passive reader-writer mode and an active reader-writer mode, so that the sources of the tag data acquired in any scene are the same, the read tag data are more reliable, and the reliability of tag data reading is improved. The tag data in the passive RFID module is indirectly read through the active RFID module, so that the application function of the original passive RFID module is reserved, and the original passive RFID system is not changed. Because the active RFID module has high sensitivity, the antenna is insensitive to the application environment, so that the influence of the environment change of the tag of the Internet of things on the reading distance is small.

Additional features and advantages of embodiments of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain, without limitation, the embodiments of the utility model. In the drawings:

fig. 1 schematically illustrates a tag structure of the internet of things according to an embodiment of the present application;

FIG. 2 schematically illustrates a schematic structure of an RFID reader according to an embodiment of the present application;

fig. 3 schematically illustrates a schematic diagram of an tag reading system of the internet of things according to an embodiment of the present application;

fig. 4 schematically shows a scenario application diagram according to an embodiment of the present application.

Description of the reference numerals

310-a reader; 320-internet of things tag.

Detailed Description

The following describes the detailed implementation of the embodiments of the present utility model with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

It should be noted that, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is only for descriptive purposes, and is not to be construed as indicating or implying relative importance or implying that the number of technical features indicated is indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

Referring to fig. 1, fig. 1 schematically illustrates a schematic structural diagram of an internet of things tag according to an embodiment of the present application. The embodiment provides an internet of things tag, which comprises: a passive RFID module and an active RFID module; the passive RFID module is connected with the active RFID module; the passive RFID module stores tag data.

In this embodiment, the passive RFID module corresponds to the current technical level of 900MHz ultra-high frequency RFID, the tag reading distance is within 30m, the active RFID module can supply power itself, and the communication distance can be 100 m-2000 m, even more. When the RFID reader-writer is particularly used, the RFID reader-writer is used for transmitting a data reading signal, the tag of the Internet of things reads tag data according to the data reading signal, and the tag data is transmitted to the RFID reader-writer.

When the passive RFID is installed, the reader-writer sends a data reading signal to the tag of the Internet of things, the tag of the Internet of things only works by the passive RFID module, and the passive RFID module reads tag data in a storage structure after safety inspection by a safety algorithm and sends the tag data to the RFID reader-writer. When the active RFID is installed, when the reader-writer sends a data reading signal to the tag of the Internet of things, the reader-writer is communicated with the active RFID module, tag data in the passive RFID module is obtained through data interaction between the active RFID module and the passive RFID module, and then the tag data is transmitted back to the reader-writer through the active RFID module. It should be noted that, because the passive RFID module is connected to the active RFID module, when the active RFID module transmits data to the passive RFID module, the passive RFID module may supply power through the connection with the active RFID module, so as to start working.

Referring to fig. 2, fig. 2 schematically illustrates a schematic structure of an RFID reader according to an embodiment of the present application. The RFID reader-writer can comprise an active or passive RFID reader-writer module and other peripheral equipment, wherein the other peripheral equipment is connected with the active or passive RFID reader-writer module so as to facilitate data transmission. Meanwhile, a power supply unit and a battery or an external power supply are further arranged in the RFID reader-writer so as to supply power to an active or passive RFID reader-writer module, and the active or passive RFID reader-writer module sends and receives signals through an antenna. The RFID reader may be implemented by using an existing RFID reader, and will not be described herein.

In the implementation process, a passive RFID module and an active RFID module are arranged; the passive RFID module is connected with the active RFID module, the passive RFID module can be used for realizing short-distance identification, the active RFID module and the passive RFID module can realize long-distance identification together, the passive Internet of things tag data is accessed through the active RFID reader-writer, and the identification distance is far greater than that of the passive RFID reader-writer, so that the passive RFID tag can be applied to various scenes, and meanwhile, compared with the Internet of things tag with the active RFID in the prior art, the product in the field range cannot be accurately identified due to the fact that the product in the field range is easy to misread in the scene with the short distance, and the accurate tag data can be obtained by directly adopting the passive RFID module to work by adopting the Internet of things tag of the embodiment. The tag of the Internet of things has the advantages of both a source RFID and a passive RFID, so that the tag is suitable for more application scenes. Meanwhile, the tag data are stored in the passive RFID module, and the data are accessed in the same data area by adopting a passive reader-writer mode and an active reader-writer mode, so that the sources of the tag data acquired in any scene are the same, the read tag data are more reliable, and the reliability of tag data reading is improved. The tag data in the passive RFID module is indirectly read through the active RFID module, so that the application function of the original passive RFID module is reserved, and the original passive RFID system is not changed. Because the active RFID module has high sensitivity, the antenna is insensitive to the application environment, so that the influence of the environment change of the tag of the Internet of things on the reading distance is small.

In the prior art, the sensitivity of the passive RFID tag is about-17 dBm to-23 dBm, the requirement on the activation power of a reader-writer is high, and the identification distance is short; the sensitivity of the active RFID is about-90 dBm to-110 dBm; the Internet of things tag in the embodiment can expand the original passive RFID tag reading distance to 100m or even 1km within 30m, and solves the problems of insufficient original RFID reading distance, limited application environment and the like. Compared with a passive RFID, the active RFID reader-writer module and the antenna have small volume and low weight, are convenient to integrate into the peripheral terminal, and reduce the carrying burden of operators.

In some embodiments, the active RFID module includes a first communication interface and the passive RFID module includes a second communication interface, the first communication interface and the second communication interface being connected.

In this embodiment, the first communication interface and the second communication interface are respectively provided, so that the active RFID module and the passive RFID module have physical interfaces respectively, and the physical connection between the active RFID module and the passive RFID module can be realized through the connection of the first communication interface and the second communication interface, thereby enabling the communication between the active RFID module and the passive RFID module to be more stable and reliable. The passive RFID module is connected with the power pin in the second communication interface through the first communication interface, so that the passive RFID module can be powered on to work when the active RFID module sends data to the passive RFID module.

In some embodiments, the first communication interface and the second communication interface are I2C interfaces.

In this embodiment, only 2I/O lines (SDA line and SCL line) are required for data transmission of the I2C interface (serial communication bus interface), so that connection between the active RFID module and the passive RFID module is greatly simplified, and reliability of data transmission is improved.

In some embodiments, the active RFID module further comprises: the system comprises a first radio frequency unit, a control unit and a safety unit; the signal output end of the first radio frequency unit is connected with the signal input end of the control unit, the output end of the control unit is connected with the input end of the safety unit, and the output end of the safety unit is connected with the first communication interface.

In this embodiment, the first radio frequency unit is configured to receive a signal sent by the reader, send the signal to the control unit after receiving the signal sent by the reader, generate an instruction for reading data according to the signal by the control unit, send the instruction to the security unit for encryption, and send the encrypted instruction to the passive RFID module through the first communication interface by the security unit, so that the active RFID module reads tag data according to the instruction. It should be noted that, the above-mentioned security unit is also used for carrying out security check to the signal sent by the reader-writer, and the security unit is provided with the air interface protocol standard of the high security algorithm, so as to ensure the security of the read data.

In the implementation process, the control unit generates the instruction according to the signal received by the first radio frequency unit so as to conveniently read the tag data from the passive RFID module, the security of instruction transmission can be ensured by encrypting the instruction through the security unit, and the reliability of tag data reading is further improved.

In some embodiments, the passive RFID module further comprises a processor unit connected to the second communication interface, the processor unit storing tag data.

In this embodiment, the processor unit is provided with a security algorithm and a storage structure, and the storage structure stores tag data. And the processor unit reads the tag data after receiving the instruction for reading the data, and sends the tag data to the active RFID module through the second communication interface. Correspondingly, under the condition that the command for reading the data is encrypted, the command for reading the data can be decrypted, and after the decryption is successful, the tag data is read and sent to the active RFID module through the second communication interface. By arranging the processor unit, the passive RFID module can conveniently read the tag data according to the instruction.

It should be noted that, the passive RFID module is further provided with an antenna unit, which is configured to receive a signal sent by the reader, and the antenna unit is connected to the processor unit, so as to read tag data in the processor unit. Specifically, when reading, after the verification is successful through a security algorithm, the tag data is read and sent to a reader-writer.

In some embodiments, the active RFID module further comprises a power supply unit for powering the first communication interface, the first radio frequency unit, the control unit and the security unit.

In this embodiment, the power supply unit may be various batteries, so as to supply power to each unit in the active RFID module, and ensure that the tag of the internet of things works normally.

In some embodiments, in order to save cost, the power supply unit includes a solar device, a micro energy taking control chip and an energy storage device, an output end of the solar device is connected with an input end of the micro energy taking control chip, an output end of the micro energy taking control chip is connected with an input end of the energy storage device, and input ends of the first communication interface, the first radio frequency unit, the control unit and the safety unit are respectively connected with an output end of the energy storage device.

In the embodiment, the micro energy taking control chip is adopted to receive solar energy received by the solar energy device as an energy input unit; and then the input energy is converted into electric energy and stored in an energy storage device, wherein the energy storage device can be a super capacitor, so that the active RFID module is powered.

In the implementation process, the solar device, the micro energy taking control chip and the energy storage device are arranged, so that the power supply unit can realize solar power supply, a battery is not required to be specially arranged, repeated replacement of the battery is avoided, and cost is saved.

Referring to fig. 3, fig. 3 schematically illustrates a schematic diagram of an internet of things tag reading system according to an embodiment of the present application. The embodiment provides an internet of things tag reading system, which comprises: the reader-writer 310 and the above-mentioned internet of things tag 320; the tag 320 of the internet of things is configured to obtain a data reading signal sent by the reader 310, read tag data according to the data reading signal, and send the tag data to the reader 310.

In this embodiment, the reader 310 may be an active RFID reader module or a passive RFID reader module. When the passive RFID is installed, when the reader 310 sends a data reading signal to the tag 320 of the internet of things, the tag 320 of the internet of things only works with the passive RFID module, and after the passive RFID module performs security check through a security algorithm, the tag data in the storage structure is read, and the tag data is sent to the RFID reader. When the active RFID is installed, when the reader 310 sends a data reading signal to the tag 320 of the internet of things, the reader communicates with the active RFID module, the tag data in the passive RFID module is obtained through data interaction between the active RFID module and the passive RFID module, and then the tag data is returned to the reader 310 through the active RFID module.

In the implementation process, the tag 320 of the internet of things comprising a passive RFID module and an active RFID module is adopted; the passive RFID module can be used for realizing short-distance identification, and the active RFID module and the passive RFID module can realize long-distance identification together, so that the passive RFID module can be applied to various scenes, and meanwhile, the tag data are stored in the passive RFID module, so that the sources of the tag data acquired in any scene are the same, the read tag data are more reliable, and the reliability of tag data reading is improved.

In some embodiments, the internet of things tag 320 is divided into a passive internet of things tag and an active internet of things tag, the passive internet of things tag includes a passive RFID module, and the active internet of things tag includes an active RFID module; a transmission relay module is arranged between the passive internet of things tag and the active internet of things tag, and the passive internet of things tag and the active internet of things tag are respectively connected with the transmission relay module; the passive internet of things tag and the active internet of things tag are arranged in different devices.

In this embodiment, for an application scenario where tag data is difficult to obtain, the passive internet of things tag and the active internet of things tag are set in different devices, so that the active internet of things tag can be used as the reader 310 to send a data reading request to the passive internet of things tag, so as to obtain tag data.

The reader 310 is a terminal device, and the terminal device is connected with a device where the active internet of things tag is located. In this embodiment, the terminal device may be a mobile phone, a tablet, or the like.

Referring to fig. 4, fig. 4 schematically illustrates a scenario application diagram according to an embodiment of the present application. In order to facilitate the explanation of the scheme, the following details are given about the application scenario of checking the transmission line identification plate:

aiming at the transmission line, the height of a high-voltage iron tower is generally 40-60 m, equipment is higher, the pole climbing operation is difficult, high-voltage danger exists, personnel are forbidden to get close, the conventional passive RFID tag is short in identification distance, aiming at the checking application of a transmission line signboard, the field needs to carry the clumsy appearance of equipment such as a mobile operation terminal, a Bluetooth back clamp or an industrial flat plate, the volume and the weight are increased, the carrying burden is increased for the field operator, the passive Internet of things tag is embedded into the transmission line signboard, the active Internet of things tag is embedded into the intelligent wristwatch, the intelligent wristwatch is connected with a mobile phone through Bluetooth, an instruction is sent to the control wristwatch through operation on the mobile phone, and the control wristwatch is used as a reader-writer 310 to further send signals to the electronic tag of the transmission line signboard, so that tag data can be read, the field operator can quickly acquire tag data without the pole climbing or carrying heavy equipment, and the working efficiency of the field operator is improved.

In the implementation process, the tag 320 of the internet of things is divided into the tag of the passive internet of things and the tag of the active internet of things, and the tag of the passive internet of things and the tag of the active internet of things are arranged in different devices, so that the application scene that tag data are difficult to obtain can be met, and the tag data can be obtained quickly.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (10)

1. The utility model provides an thing networking label which characterized in that includes: a passive RFID module and an active RFID module; the passive RFID module is connected with the active RFID module; the passive RFID module stores tag data; and indirectly reading the tag data in the passive RFID module through the active RFID module.

2. The internet of things tag of claim 1, wherein the active RFID module comprises a first communication interface and the passive RFID module comprises a second communication interface, the first communication interface and the second communication interface being connected.

3. The internet of things tag of claim 2, wherein the first communication interface and the second communication interface are I2C interfaces.

4. The internet of things tag of claim 2, wherein the active RFID module further comprises: the system comprises a first radio frequency unit, a control unit and a safety unit; the signal output end of the first radio frequency unit is connected with the signal input end of the control unit, the output end of the control unit is connected with the input end of the safety unit, and the output end of the safety unit is connected with the first communication interface.

5. The internet of things tag of claim 2, wherein the passive RFID module further comprises a processor unit, the processor unit being coupled to the second communication interface, the processor unit storing tag data.

6. The internet of things tag of claim 4, wherein the active RFID module further comprises a power supply unit for powering the first communication interface, the first radio frequency unit, the control unit, and the security unit.

7. The internet of things tag of claim 6, wherein the power supply unit comprises a solar device, a micro energy taking control chip and an energy storage device, wherein an output end of the solar device is connected with an input end of the micro energy taking control chip, an output end of the micro energy taking control chip is connected with an input end of the energy storage device, and input ends of the first communication interface, the first radio frequency unit, the control unit and the safety unit are respectively connected with an output end of the energy storage device.

8. The utility model provides a tag reading system of thing networking which characterized in that includes: a reader-writer and the internet of things tag of any one of claims 1-7;

the Internet of things tag is used for acquiring a data reading signal sent by the reader-writer, reading tag data according to the data reading signal and sending the tag data to the reader-writer.

9. The internet of things tag reading system of claim 8, wherein the internet of things tag is divided into a passive internet of things tag and an active internet of things tag, the passive internet of things tag comprises a passive RFID module, and the active internet of things tag comprises an active RFID module; a transmission relay module is arranged between the passive internet of things tag and the active internet of things tag, and the passive internet of things tag and the active internet of things tag are respectively connected with the transmission relay module; the passive internet of things tag and the active internet of things tag are arranged in different devices.

10. The tag reading system of claim 9, wherein the reader is a terminal device, and the terminal device is connected to a device where the active tag is located.