CN114462565A - RFID perception label of easily customizing - Google Patents
RFID perception label of easily customizing Download PDFInfo
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- CN114462565A CN114462565A CN202111615648.6A CN202111615648A CN114462565A CN 114462565 A CN114462565 A CN 114462565A CN 202111615648 A CN202111615648 A CN 202111615648A CN 114462565 A CN114462565 A CN 114462565A
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- 230000008447 perception Effects 0.000 title description 7
- 238000000034 method Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0016—Inter-integrated circuit (I2C)
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Abstract
The invention discloses an RFID (radio frequency identification) sensing tag easy to customize, which relates to the technical field of RFID sensing tags and solves the problems of high energy consumption, high cost and difficult reconstruction when the conventional RFID tag senses, and the RFID sensing tag is in communication connection with an RFID reader and comprises a radio frequency chip, a sensor module and a control module, wherein the radio frequency chip is used for receiving a signal sent by the RFID reader, modulating and coding the signal into a standard bus signal and sending the standard bus signal to the sensor module, and is also used for receiving collected data generated by the sensor module and modulating and coding the collected data and sending the collected data back to the RFID reader; the standard bus signal is used for accessing and controlling the sensor module; the sensor module acquires acquired data according to the received standard bus signal and sends the acquired data back to the radio frequency chip; the invention has the advantages of low power consumption, low cost, easy maintenance and easy reconstruction.
Description
Technical Field
The invention relates to the field of RFID (radio frequency identification) perception tags, in particular to the technical field of easily customized RFID perception tags.
Background
RFID is a technology for achieving identification by direct contactless data communication between a reader and a tag. With the rapid development of the application of 5G, cloud computing, big data, sensors and other digital technologies, the method is a large-scale application of RFID, and meanwhile, RFID sensing tags with sensing capability are produced, and the method has wide application in the aspects of identity recognition, logistics, traffic, anti-counterfeiting, food and asset management and the like. According to IDTechOx statistics, the market size of the global RFID industry in 2019 is about $ 116.4 billion, the increase to $ 152.3 billion in 2024 is expected, and the annual composite increase rate in 2019 and 2024 is about 6.61%. Meanwhile, the usage amount of the Chinese RFID electronic tags also shows a rapid growth trend. According to statistics, the usage amount of the Chinese RFID tags is increased from about 10.3 hundred million in 2014 to about 27.4 million in 2019, the composite growth rate in 2014-2019 is about 21.6%, and the usage amount reaches 64.9 million in 2024.
Conventional RFID tags include chips, microcontrollers, and sensors under the Gen2 protocol when used for sensing. Due to the fact that the microcontroller is adopted in the RFID tag, the existing RFID sensing tag has three problems: high energy consumption, high cost and difficult reconstruction. Firstly, the use of the microcontroller brings the requirement of energy consumption for the structure, even if the microcontroller can achieve low-power-consumption standby, under the scene that the RFID sensing tag needs to be continuously read, the switching of the working mode of the microcontroller still brings about not little energy overhead, so that the sensing tag is difficult to be applied to the working scene. Secondly, the presence of a microcontroller makes the cost of the tag high, which makes it difficult to use a large area for the value of monitoring objects in many applications. Finally, as the sensor data read by the microcontroller under different scenes is different, the tag of each sensor combination needs to be redeveloped on the software and hardware level, so that the development cost is further increased, and the characteristic of difficult reconstruction also prevents the further popularization of the RFID sensing tag.
Disclosure of Invention
The invention aims to: the problem of current RFID label be used for perception energy consumption height, with high costs and reconsitution difficult defect is solved. In order to solve the technical problem, the invention provides an RFID sensing tag which is easy to customize.
The invention specifically adopts the following technical scheme for realizing the purpose:
an easily customizable RFID sensor tag communicatively coupled to an RFID reader, comprising:
the radio frequency chip is used for receiving the signal sent by the RFID reader, converting the signal into a standard bus signal and sending the standard bus signal to the sensor module, and is also used for receiving the acquired data generated by the sensor module and modulating and coding the acquired data and returning the encoded acquired data to the RFID reader; the standard bus signal is used for accessing and controlling the sensor module;
and the sensor module acquires the acquired data according to the received standard bus signal and sends the acquired data back to the radio frequency chip.
Preferably, the standard bus signals are of the bus type including SPI and I2C.
Preferably, the sensor module comprises 1 universal sensor interface.
Preferably, the sensor is mounted in a plug-in manner.
Preferably, the method for the radio frequency chip to modulate and code the collected data back to the RFID reader includes:
and the radio frequency chip modulates an RFID protocol uplink data packet carrying the acquired data from the sensor into a carrier signal transmitted by the RFID reader.
Preferably, the method for modulating the RFID protocol uplink data packet carrying the collected data from the sensor into the carrier signal transmitted by the RFID reader by the radio frequency chip is backscattering.
The invention has the following beneficial effects:
the structure adopted by the invention does not need the assistance of a processor, and has the advantage of low power consumption, and the power consumption of the whole tag can be controlled at the level of mu W; the sensor is installed in a plug-in mode, so that the sensor can be replaced conveniently according to different scenes and requirements, and the sensor has wide applicability; the radio frequency chip directly transmits the acquired data of the sensor back to the RFID reader through backscattering, is simple and convenient, and has the advantage of easy reconstruction; under the scheme of the invention, the sensing tag does not need to be programmed after the processor is removed, and the data processing part is floated to the RFID reader in communication connection with the tag, so that the maintenance difficulty is reduced; in addition, the system has the advantage of low cost due to the absence of the processor.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides an RFID sensing tag easy to customize, where the RFID sensing tag is communicatively connected to an RFID reader, and the RFID sensing tag includes:
the radio frequency chip is used for receiving the signal sent by the RFID reader, converting the signal into a standard bus signal and sending the standard bus signal to the sensor module, and is also used for receiving the acquired data generated by the sensor module and modulating and coding the acquired data and returning the encoded acquired data to the RFID reader; the standard bus signal is used for accessing and controlling the sensor module; wherein. The method for converting the signal sent by the RFID reader to the standard bus signal comprises the following steps: firstly, the signals are demodulated into baseband signals, and then the baseband signals are converted into standard bus signals through a circuit.
And the sensor module acquires the acquired data according to the received standard bus signal and sends the acquired data back to the radio frequency chip.
In the present embodiment, the bus types adopted by the standard bus signals include SPI and I2C.
In addition, the sensor module comprises 1 universal sensor interface, and different types of sensors are preferably installed in a plug-in mode according to requirements.
Preferably, the method for the radio frequency chip to modulate and code the RFID protocol uplink data packet carrying the collected data from the sensor back to the RFID reader includes:
and the radio frequency chip modulates an RFID protocol uplink data packet carrying the acquired data from the sensor into a carrier signal transmitted by the RFID reader.
The working principle of the embodiment is as follows:
the radio frequency chip receives a signal sent by the RFID reader, modulates and codes the signal into a standard bus signal and sends the standard bus signal to the sensor module, wherein the standard bus signal is used for accessing and controlling the sensor module; and then the sensor module acquires the acquired data according to the received standard bus signal, the sensor sends the acquired data back to the radio frequency chip after acquiring the acquired data, and finally the radio frequency chip receives the acquired data sent back by the sensor module and modulates and codes the acquired data back to the RFID reader.
In the scheme, the radio frequency chip mainly directly accesses and controls the sensing module, so that a processor in the traditional RFID tag is omitted, and the signal modulated by the radio frequency chip directly controls the sensor and transmits the sensor data back to the RFID reader. Specifically, the control command to be sent to the sensor may be merged into a command for downlink of the communication protocol of the radio frequency chip, and the RFID protocol uplink data packet, which includes the sent acquired data, of the sensor may be merged into a command for uplink of the communication protocol of the radio frequency chip.
Conventional RFID tags include a chip, microcontroller and sensor under the Gen2 protocol. Due to the fact that the microcontroller is adopted in the RFID tag, the existing RFID sensing tag has three problems: high energy consumption, high cost and difficult reconstruction. In the scheme adopted in this embodiment, because the microcontroller on the conventional RFID tag is removed, the energy consumption of the entire RFID tag is greatly reduced in the operating mode, specifically, the power consumption of the entire RFID tag can be controlled at the μ W level, while the conventional RFID tag using the microcontroller can generally reach the mW level in the operating mode.
Likewise, since the microcontroller is removed, the staff does not need to program the MCU of the RFID tag any more in use of the RFID tag, particularly because the data processing part is floated up to the RFID reader, and can be implemented only by processing the logic of the RFID reader even if the need for data processing changes.
In addition, in the conventional RFID sensing tag, due to the fact that the sensors required under different scenes are different, if the sensors are replaced, the firmware of the microcontroller is rewritten, and even the related hardware circuit may be redesigned, but in the scheme adopted in this embodiment, the radio frequency chip modulates and encodes the signal into a standard bus signal, and transmits the standard bus signal to the sensor module, where the standard bus signal includes SPI and I2C, and can also modulate more types of standard bus signals according to the requirements, so that the communication connection can be directly established with the sensors supporting different communication protocols, and therefore, replacing the sensors using such standard bus protocols does not lead to redevelopment, design and production of the RFID sensing tag. The plug and play and quick reconstruction can be realized for different sensor modules, and the use requirements under different scenes are met.
Finally, the conventional RFID tag mentioned above is difficult to reconfigure and requires maintenance due to its microcontroller. This not only results in high hardware cost for production, but also high development cost for different scenarios. By adopting the RFID tag provided by the embodiment, the cost of one microcontroller can be reduced on hardware products, and meanwhile, the research and development cost is greatly reduced without research and development again for different requirements.
Example 2
This embodiment provides an RFID perception label easy to customize based on embodiment 1, RFID perception label and RFID reader communication connection includes:
the radio frequency chip is used for receiving the signal sent by the RFID reader, modulating and coding the signal into a standard bus signal and sending the standard bus signal to the sensor module, and is also used for receiving the acquired data generated by the sensor module and modulating and coding the acquired data and sending the encoded acquired data back to the RFID reader; the standard bus signal is used for accessing and controlling the sensor module;
and the sensor module acquires the acquired data according to the received standard bus signal and sends the acquired data back to the radio frequency chip.
The bus types adopted by the standard bus signals comprise SPI and I2C.
In addition, the sensor module comprises a plurality of universal sensor interfaces, wherein the sensors are preferably mounted in a plug-in manner.
The radio frequency chip modulates the collected data from the sensor into the carrier signal transmitted by the RFID reader, and particularly, in this embodiment, the method for modulating the collected data from the sensor into the carrier signal transmitted by the RFID reader by the radio frequency chip is backscattering, that is, the carrier signal provided by the RFID reader is reflected by backscattering, so as to transmit the collected data provided by the sensor back to the RFID reader.
The working principle of this embodiment is the same as that of embodiment 1, and will not be described herein again.
Claims (6)
1. An easily customizable RFID sensor tag communicatively coupled to an RFID reader, comprising:
the radio frequency chip is used for receiving the signal sent by the RFID reader, converting the signal into a standard bus signal and sending the standard bus signal to the sensor module, and is also used for receiving the acquired data generated by the sensor module and modulating and coding the acquired data and returning the encoded acquired data to the RFID reader; the standard bus signal is used for accessing and controlling the sensor module;
and the sensor module acquires the acquired data according to the received standard bus signal and sends the acquired data back to the radio frequency chip.
2. An easily customizable RFID sensor tag in accordance with claim 1, wherein the standard bus signals use bus types including SPI and I2C.
3. An easily customizable RFID sensor tag according to claim 1, characterized in that the sensor module comprises 1 universal sensor interface.
4. An easily customizable RFID sensor tag according to claim 3, wherein the sensor is mounted by plugging.
5. The easily customizable RFID sensor tag of claim 1, wherein the method for the radio frequency chip to modulate and encode the collected data back to the RFID reader comprises:
and the radio frequency chip modulates an RFID protocol uplink data packet carrying the acquired data from the sensor into a carrier signal transmitted by the RFID reader.
6. An easily customizable RFID sensor tag as recited in claim 5, wherein the method of modulating the RFID protocol upstream data packet carrying the collected data from the sensor into the carrier signal transmitted by the RFID reader by the RF chip is backscattering.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111615648.6A CN114462565A (en) | 2021-12-27 | 2021-12-27 | RFID perception label of easily customizing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111615648.6A CN114462565A (en) | 2021-12-27 | 2021-12-27 | RFID perception label of easily customizing |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254208A (en) * | 2010-05-18 | 2011-11-23 | 中国电子科技集团公司第五十五研究所 | Acoustic surface wave passive radio frequency identification tag and sensor |
| KR20120110398A (en) * | 2011-03-29 | 2012-10-10 | 한국전자통신연구원 | Object proximity sensor features an rfid tag reader |
| CN112039744A (en) * | 2020-08-28 | 2020-12-04 | 电子科技大学 | Wireless bus communication method based on backscattering |
| CN113065365A (en) * | 2021-03-18 | 2021-07-02 | 复旦大学 | Multi-subcarrier multi-address passive wireless sensing system based on backscattering technology |
| CN113705257A (en) * | 2021-08-24 | 2021-11-26 | 电子科技大学 | RFID (radio frequency identification) tag system integrating sensing and identification |
| CN113705756A (en) * | 2021-08-24 | 2021-11-26 | 电子科技大学 | RFID chip |
-
2021
- 2021-12-27 CN CN202111615648.6A patent/CN114462565A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254208A (en) * | 2010-05-18 | 2011-11-23 | 中国电子科技集团公司第五十五研究所 | Acoustic surface wave passive radio frequency identification tag and sensor |
| KR20120110398A (en) * | 2011-03-29 | 2012-10-10 | 한국전자통신연구원 | Object proximity sensor features an rfid tag reader |
| CN112039744A (en) * | 2020-08-28 | 2020-12-04 | 电子科技大学 | Wireless bus communication method based on backscattering |
| CN113065365A (en) * | 2021-03-18 | 2021-07-02 | 复旦大学 | Multi-subcarrier multi-address passive wireless sensing system based on backscattering technology |
| CN113705257A (en) * | 2021-08-24 | 2021-11-26 | 电子科技大学 | RFID (radio frequency identification) tag system integrating sensing and identification |
| CN113705756A (en) * | 2021-08-24 | 2021-11-26 | 电子科技大学 | RFID chip |
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Application publication date: 20220510 |