WO2021143094A1 - Radio frequency identification chip supporting digital communication interface, and application method thereof - Google Patents

Radio frequency identification chip supporting digital communication interface, and application method thereof Download PDF

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WO2021143094A1
WO2021143094A1 PCT/CN2020/105041 CN2020105041W WO2021143094A1 WO 2021143094 A1 WO2021143094 A1 WO 2021143094A1 CN 2020105041 W CN2020105041 W CN 2020105041W WO 2021143094 A1 WO2021143094 A1 WO 2021143094A1
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data
module
radio frequency
digital interface
digital
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PCT/CN2020/105041
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French (fr)
Chinese (zh)
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仝杰
张鋆
张树华
张明皓
李荡
王兰若
雷煜卿
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中国电力科学研究院有限公司
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Publication of WO2021143094A1 publication Critical patent/WO2021143094A1/en

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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
    • 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

Definitions

  • This application relates to the field of communication technology, for example, to a radio frequency identification chip supporting a digital communication interface and an application method thereof.
  • RFID technology is an automatic identification technology that uses electromagnetic signals to transmit data through spatial coupling.
  • the RFID system does not need to establish mechanical or optical contact with the target object, and uses radio frequency signals to automatically identify the target object and obtain related data. It has the advantages of non-line-of-sight reading, stable work, and large data storage capacity. It can be widely used in non-stop toll systems, Commodity logistics management, access control security management and other application areas that need to collect and process data.
  • RFID chips cannot communicate with control units such as MCUs, a single chip operates on islands, cannot form a complex circuit, and has a single application scenario, which makes it difficult to meet the requirements of device miniaturization, integration, and low power consumption.
  • Digital buses such as IIC and SPI are widely used in communication control and microelectronics fields.
  • the digital bus circuit is simple, easy to configure, easy to standardize and maintain the system, and is widely used in control electronics, entertainment consumer equipment and other occasions.
  • the digital interface is used for data transmission, the circuit is simple, the speed is fast, and the transmission reliability is high.
  • This application proposes a radio frequency identification chip supporting a digital communication interface, including:
  • the radio frequency identification chip includes a digital baseband, a memory, a power consumption management module, and pins; the digital baseband includes:
  • a decoding analysis module configured to decode and analyze the received data encoding encoded by a preset encoding rule to obtain corresponding analysis data;
  • the analysis data includes at least one of an instruction and a parameter;
  • An output control module where the output control unit is configured to generate feedback data encoding for the feedback data generated by the state jump module according to a preset encoding rule; and encode the feedback data for scattered transmission through an external antenna;
  • a digital interface module the data interface module is set to communicate with an external micro-control unit through a preset data interface
  • a memory interface module where the memory interface module is configured to communicate with the memory; the external micro-control unit accesses the memory via the memory interface module through the digital interface module;
  • the digital interface module is configured to detect the start signal generated when the decoding and parsing module receives data encoding
  • the power consumption management module detects the information transmitted on the chip data bus after the data interface module detects the start signal, and stores the corresponding analysis data and the feedback data in the In memory.
  • This application also proposes an electronic tag using the above-mentioned radio frequency identification chip, including the radio frequency identification chip and an analog circuit;
  • the pins of the radio frequency identification chip are correspondingly soldered on the analog circuit, and communicate with the analog circuit;
  • the communication module includes an antenna, and the communication module is configured to receive a radio frequency carrier with data encoding sent by an external radio frequency reader;
  • the filtering unit is configured to filter the radio frequency carrier and demodulate the radio frequency carrier to obtain a data code encoded by a preset encoding rule
  • the analog circuit is configured to send a clock signal and a reset signal to the digital baseband of the radio frequency identification chip after receiving the radio frequency carrier, and send the data code to the decoding and analysis module of the data baseband.
  • FIG. 1 is a structural diagram of a UHF RFID chip supporting a digital communication interface according to a specific embodiment of this application;
  • FIG. 2 is a schematic diagram of pins of a UHF RFID chip supporting a digital communication interface according to a specific embodiment of this application;
  • FIG 1 is a structural diagram of a UHF RFID chip supporting a digital communication interface according to a specific implementation of this application; as shown in Figure 1, this application provides an RFID chip (ie, radio frequency identification chip), such as a UHF RFID Chip (ie, UHF radio frequency identification chip), the UHF RFID chip includes:
  • the digital baseband 110 includes multiple modules, which may include: a decoding analysis module 111, a state jump module 112, an output control module 113, and a digital Interface module 114, memory interface module 115, and signal selection module 118;
  • the decoding and analysis module 111 and the output control module 113 are connected to the analog circuit on the electronic tag where the RFID chip is located, and the decoding and analysis module 111 is configured to receive the radio frequency signal sent by the external radio frequency reader received through the analog circuit
  • the output control module 113 is configured to encode the feedback data through the antenna of the analog circuit for scattering and sending;
  • the analog circuit in the electronic label obtains working energy from the radio frequency carrier wave sent by the reader to generate digital
  • the clock signal and reset signal required for the operation of the baseband 110 are demodulated from the carrier and sent to the digital baseband 110 for processing.
  • the initialization module 140 is activated after the electronic tag is powered on to initialize the digital baseband 110; in this embodiment, the data encoding is TPP encoding, including FMO encoding and Miller encoding. In some embodiments, when When receiving data encoding under a specific encoding rule, the subsequent encoding of the feedback data should also be based on this specific encoding rule.
  • the decoding and parsing module 111 is configured to decode and analyze the received data encoding encoded by a preset encoding rule to obtain corresponding parsing data; the parsing data includes at least one of an instruction and a parameter;
  • the decoding and parsing module 111 After the decoding and parsing module 111 receives the data encoding encoded by the preset encoding rule, it determines that the data encoding is to be verified through a CRC (Cyclic Redundancy Check, cyclic redundancy) check; If the verification is passed, the data encoding is decoded and analyzed.
  • CRC Cyclic Redundancy Check, cyclic redundancy
  • the output control unit is configured to generate feedback data encoding for the feedback data generated by the state jump module 112 according to a preset encoding rule; and encode the feedback data for scattered transmission through an external antenna;
  • the power consumption management module 130 is configured to control the turning on and off of each module of the digital baseband 110 and the initialization module 140; in some embodiments, when each module works according to the above process, the power consumption
  • the management module 130 controls the turn-on and turn-off of each module as follows:
  • the initialization module 140 initializes the chip, wake up the power consumption management module 130;
  • the power consumption management module 130 turns off the decoding analysis module 111 and turns on the state jump module 112;
  • the power consumption management module 130 turns off the state jump module 112 and turns on the output control module 113;
  • the power consumption management module 130 turns off the output control module 113 and restarts the decryption analysis module.
  • the data interface module is configured to communicate with an external MCU through a preset data interface
  • the memory interface module 115 is configured to communicate with the memory 120; the external MCU accesses the memory 120 through the digital interface module 114 via the memory interface module 115;
  • the power consumption management module 130 detects the information transmitted on the chip data bus after the data interface module detects the start signal, and stores the corresponding analysis data and feedback data in the memory 120 according to a preset rule.
  • the signal selection module 118 is configured to generate a corresponding data address according to the data read request sent by the external MCU through the digital interface module 114;
  • the digital baseband 110 reads the corresponding data in the memory 120 according to the data address through the memory 120 interface unit; and returns the data to the external MCU through the digital interface module 114;
  • the data selection module is configured to obtain corresponding write data according to a data write request sent by the external MCU through the digital interface module 114, and generate a corresponding data address;
  • the digital baseband 110 stores the write data in a corresponding data address through the memory 120 interface unit.
  • the memory 120 is provided with a configuration register and an interrupt register
  • a special interrupt register is set at addresses 200H to 20FH in the sector BANK 01EPC area.
  • the interrupt register is set to read or write data on the chip when the radio frequency signal passes through the address where the interrupt register is located.
  • FIG. 2 is a schematic diagram of the pins of a UHF RFID chip supporting a digital communication interface according to a specific implementation of this application; as shown in Figure 2:
  • the first digital interface pin DATA is used for communication.
  • the UHF RFID chip is mainly used as an electronic tag chip, and the electronic tag using the UHF RFID chip as described above includes a UHF RFID chip and an analog circuit;
  • the pins of the UHF RFID chip are correspondingly welded on the analog circuit, and communicate with the analog circuit;
  • the analog circuit includes a communication module and a filtering module
  • the communication module includes an antenna, and the communication module is configured to receive a radio frequency carrier with data encoding sent by an external radio frequency reader;
  • the analog circuit is configured to send a clock signal and a reset signal to the digital baseband 110 of the UHF RFID chip after receiving the radio frequency carrier, and send the data code to the decoding and analysis module 111 of the data baseband.
  • Step 330 If it is determined that data needs to be returned, generate feedback data after the state jump according to the result of the state jump;
  • Step 340 Generate feedback data encoding for the feedback data generated by the state jump module according to a preset encoding rule; and encode the feedback data for scattered transmission through an external antenna.
  • Step 350 real-time detection of the start signal generated when data encoding is received through the digital interface
  • Step 360 After the start signal is detected, the information transmitted on the chip data bus is detected, and the corresponding analysis data and feedback data are stored in the memory according to a preset rule.
  • a corresponding data address is generated according to the data read request sent by the external MCU
  • the written data is stored in the corresponding data address.
  • the method before receiving data encoding encoded by a preset encoding rule, the method further includes:
  • the chip After receiving the clock signal and reset signal of the external analog circuit, the chip is initialized.

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Abstract

Disclosed in the present application are a radio frequency identification chip supporting a digital communication interface, and an application method thereof. The chip comprises a digital baseband, a memory, a power consumption management module, and a pin. The digital baseband comprises: a decoding and parsing module, a state change module, an output control module, a digital interface module, and a memory interface module. The decoding and parsing module is configured to decode and parse a data code to obtain corresponding parsed data; the state change module is configured to perform a state change on the basis of a preset rule according to the parsed data obtained by the decoding and parsing module, and generate feedback data after the state change; the output control unit is configured to encodes the feedback data and sends same by means of an external antenna in a scattering mode; the data interface module is configured to establish a communication connection with an external microcontroller unit by means of a preset data interface; the power consumption management module detects information transmitted over a chip data bus, and stores the corresponding parsed data and the feedback data to the memory according to a preset rule.

Description

支持数字通信接口的射频识别芯片及其应用方法Radio frequency identification chip supporting digital communication interface and application method thereof
本公开要求在2020年01月15日提交中国专利局、申请号为202010042219.3的中国专利申请的优先权，以上申请的全部内容通过引用结合在本公开中。This disclosure claims the priority of a Chinese patent application filed with the Chinese Patent Office with an application number of 202010042219.3 on January 15, 2020, and the entire content of the above application is incorporated into this disclosure by reference.
技术领域Technical field
本申请涉及通信技术领域，例如涉及一种支持数字通信接口的射频识别芯片及其应用方法。This application relates to the field of communication technology, for example, to a radio frequency identification chip supporting a digital communication interface and an application method thereof.
背景技术Background technique
随着物联网技术的飞速发展，相关技术中，自动识别技术已经无法满足新兴的应用要求，射频识别(Radio Frequency Identification，RFID)技术开始进入人们的视野并得到了足够的重视。RFID技术是一项利用电磁信号通过空间耦合进行数据传输的自动识别技术。RFID***不需要与目标物体建立机械或光学接触，利用射频信号自动识别目标物体并获取相关数据，具有非视距阅读、工作稳定、数据存储量大等优点，能够广泛应用于不停车收费***、商品物流管理、门禁安全管理等需要收集和处理数据的应用领域。相关技术中，RFID芯片无法与MCU等控制单元进行通信，单芯片孤岛运行，无法构成复杂电路，应用场景单一，难以满足设备小型化、集成化、低功耗的要求。With the rapid development of Internet of Things technology, among related technologies, automatic identification technology has been unable to meet emerging application requirements. Radio Frequency Identification (RFID) technology has begun to enter people's field of vision and has received sufficient attention. RFID technology is an automatic identification technology that uses electromagnetic signals to transmit data through spatial coupling. The RFID system does not need to establish mechanical or optical contact with the target object, and uses radio frequency signals to automatically identify the target object and obtain related data. It has the advantages of non-line-of-sight reading, stable work, and large data storage capacity. It can be widely used in non-stop toll systems, Commodity logistics management, access control security management and other application areas that need to collect and process data. In related technologies, RFID chips cannot communicate with control units such as MCUs, a single chip operates on islands, cannot form a complex circuit, and has a single application scenario, which makes it difficult to meet the requirements of device miniaturization, integration, and low power consumption.
IIC、SPI等数字总线广泛使用在通信控制，微电子领域。数字总线电路简单，配置方便，容易进行***的标准化和维护，在控制类电子、娱乐消费设备等场合被广泛应用。在数据采集中，使用数字接口进行数据传输，线路简单，速度快，传输可靠性高。Digital buses such as IIC and SPI are widely used in communication control and microelectronics fields. The digital bus circuit is simple, easy to configure, easy to standardize and maintain the system, and is widely used in control electronics, entertainment consumer equipment and other occasions. In the data collection, the digital interface is used for data transmission, the circuit is simple, the speed is fast, and the transmission reliability is high.
发明内容Summary of the invention
为了解决相关技术中，存在的RFID芯片(即，射频识别芯片)无法实现与MCU(即，微控制单元)等控制单元进行通信，单芯片孤岛运行，无法构成复杂电路，应用场景单一的问题，本申请提供了一种支持数字通信接口的RFID芯片及其应用方法，所述RFID芯片及应用方法通过设计支持数字通信接口的RFID芯片，通过数字接口建立RFID芯片与MCU等控制单元的联系，无需加装RFID读写器。In order to solve the problem that the existing RFID chip (i.e., radio frequency identification chip) cannot communicate with control units such as MCU (i.e., micro-control unit) in related technologies, the single chip operates in islands, cannot form a complex circuit, and has a single application scenario. This application provides an RFID chip that supports a digital communication interface and an application method thereof. The RFID chip and application method design an RFID chip that supports a digital communication interface and establish a connection between the RFID chip and a control unit such as MCU through the digital interface. Install RFID reader.
本申请提出一种支持数字通信接口的射频识别芯片，包括：This application proposes a radio frequency identification chip supporting a digital communication interface, including:
所述射频识别芯片包括数字基带、存储器、功耗管理模块以及引脚；所述数字基带包括：The radio frequency identification chip includes a digital baseband, a memory, a power consumption management module, and pins; the digital baseband includes:
解码解析模块，所述解码解析模块被设置为对接收到的通过预设编码规则编码的数据编码进行解码解析，获得对应的解析数据；所述解析数据包括指令和参数中至少之一；A decoding analysis module, the decoding analysis module is configured to decode and analyze the received data encoding encoded by a preset encoding rule to obtain corresponding analysis data; the analysis data includes at least one of an instruction and a parameter;
状态跳转模块，所述状态跳转模块被设置为根据所述解码解析模块获得的所述解析数据，通过预设规则进行状态跳转，并判断是否需要返回数据；所述状态跳转模块被设置为对需要返回数据的状态跳转结果，生成状态跳转后的反馈数据；The state jump module, the state jump module is set to perform state jump according to the analysis data obtained by the decoding analysis module, and determine whether it is necessary to return data; the state jump module is Set to generate the feedback data after the state jump for the result of the state jump that needs to return data;
输出控制模块，所述输出控制单元被设置为对所述状态跳转模块生成的所述反馈数据根据预设的编码规则生成反馈数据编码；并将所述反馈数据编码通过外接天线进行散射发送；An output control module, where the output control unit is configured to generate feedback data encoding for the feedback data generated by the state jump module according to a preset encoding rule; and encode the feedback data for scattered transmission through an external antenna;
数字接口模块，所述数据接口模块被设置为与外部微控制单元通过预设的数据接口进行通信连接；A digital interface module, the data interface module is set to communicate with an external micro-control unit through a preset data interface;
存储器接口模块，所述存储器接口模块被设置为与所述存储器进行通信连接；所述外部微控制单元通过所述数字接口模块经由所述存储器接口模块访问存储器；A memory interface module, where the memory interface module is configured to communicate with the memory; the external micro-control unit accesses the memory via the memory interface module through the digital interface module;
所述数字接口模块被设置为检测所述解码解析模块接收数据编码时产生的起始信号；The digital interface module is configured to detect the start signal generated when the decoding and parsing module receives data encoding;
所述功耗管理模块在所述数据接口模块检测到所述起始信号后检测芯片数据总线上传输的信息，并根据预设规则将对应的所述解析数据以及所述反馈数据存储至所述存储器中。The power consumption management module detects the information transmitted on the chip data bus after the data interface module detects the start signal, and stores the corresponding analysis data and the feedback data in the In memory.
本申请还提出一种应用如上所述射频识别芯片的电子标签，包括射频识别芯片以及模拟电路；This application also proposes an electronic tag using the above-mentioned radio frequency identification chip, including the radio frequency identification chip and an analog circuit;
所述射频识别芯片的引脚对应焊接在所述模拟电路上，与模拟电路进行通信连接；The pins of the radio frequency identification chip are correspondingly soldered on the analog circuit, and communicate with the analog circuit;
所述模拟电路包括通信模块以及滤波模块；The analog circuit includes a communication module and a filtering module;
所述通信模块包括天线，所述通信模块被设置为接收外部射频阅读器发送的带有数据编码的射频载波；The communication module includes an antenna, and the communication module is configured to receive a radio frequency carrier with data encoding sent by an external radio frequency reader;
所述滤波单元被设置为对所述射频载波进行滤波，并对所述射频载波上解调，获得通过预设编码规则编码的数据编码；The filtering unit is configured to filter the radio frequency carrier and demodulate the radio frequency carrier to obtain a data code encoded by a preset encoding rule;
所述模拟电路被设置为在接收到射频载波后，向所述射频识别芯片的数字基带发送时钟信号以及复位信号，并将所述数据编码发送至所述数据基带的解码解析模块。The analog circuit is configured to send a clock signal and a reset signal to the digital baseband of the radio frequency identification chip after receiving the radio frequency carrier, and send the data code to the decoding and analysis module of the data baseband.
附图说明Description of the drawings
通过参考下面的附图，可以更为完整地理解本申请的示例性实施方式：By referring to the following drawings, the exemplary embodiments of the present application can be understood more completely:
图1为本申请具体实施方式的一种支持数字通信接口的UHF RFID芯片的结构图；FIG. 1 is a structural diagram of a UHF RFID chip supporting a digital communication interface according to a specific embodiment of this application;
图2为本申请具体实施方式的一种支持数字通信接口的UHF RFID芯片的引脚示意图；FIG. 2 is a schematic diagram of pins of a UHF RFID chip supporting a digital communication interface according to a specific embodiment of this application;
图3为本申请具体实施方式的一种支持数字通信接口的UHF RFID芯片的应用方法的流程图。Fig. 3 is a flow chart of an application method of a UHF RFID chip supporting a digital communication interface according to a specific embodiment of the application.
具体实施方式Detailed ways
现在参考附图介绍本申请的示例性实施方式，然而，本申请可以用许多不同的形式来实施，并且不局限于此处描述的实施例，提供这些实施例是为了详尽地且完全地公开本申请，并且向所属技术领域的技术人员充分传达本申请的范围。对于表示在附图中的示例性实施方式中的术语并不是对本申请的限定。在附图中，相同的单元/元件使用相同的附图标记。The exemplary embodiments of the present application will now be described with reference to the accompanying drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described here. These embodiments are provided to disclose the present invention in detail and completely. Apply, and fully convey the scope of this application to those skilled in the art. The terms in the exemplary embodiments shown in the drawings do not limit the application. In the drawings, the same units/elements use the same reference signs.
除非另有说明，此处使用的术语(包括科技术语)对所属技术领域的技术人员具有通常的理解含义。另外，可以理解的是，以通常使用的词典限定的术语，应当被理解为与其相关领域的语境具有一致的含义，而不应该被理解为理想化的或过于正式的意义。Unless otherwise specified, the terms (including scientific and technological terms) used herein have the usual meanings to those skilled in the art. In addition, it is understandable that the terms defined in commonly used dictionaries should be understood as having consistent meanings in the context of their related fields, and should not be understood as idealized or overly formal meanings.
图1为本申请具体实施方式的一种支持数字通信接口的UHF RFID芯片的结构图；如图1所示，本申请提供一种RFID芯片(即，射频识别芯片)，比如：一种UHF RFID芯片(即，超高频射频识别芯片)，所述UHF RFID芯片包括：Figure 1 is a structural diagram of a UHF RFID chip supporting a digital communication interface according to a specific implementation of this application; as shown in Figure 1, this application provides an RFID chip (ie, radio frequency identification chip), such as a UHF RFID Chip (ie, UHF radio frequency identification chip), the UHF RFID chip includes:
数字基带110、存储器120、功耗管理模块130、初始化模块140以及引脚；所述数字基带110包括多个模块，可以包括：解码解析模块111、状态跳转模块112、输出控制模块113、数字接口模块114、存储器接口模块115以及信号选择模块118；The digital baseband 110, the memory 120, the power management module 130, the initialization module 140, and pins; the digital baseband 110 includes multiple modules, which may include: a decoding analysis module 111, a state jump module 112, an output control module 113, and a digital Interface module 114, memory interface module 115, and signal selection module 118;
所述数字基带110通过存储器接口模块115实现与存储器120的通信连接；所述数字基带110通过数字接口模块114根据约定的数字接口类型实现与外部的MCU(Microcontroller Unit，微控制单元)等控制单元的通信；通过所述数字基带110，所述外部的MCU等控制单元即可通过数字接口模块114以及存储器接口模块115访问芯片的存储器120；The digital baseband 110 communicates with the memory 120 through the memory interface module 115; the digital baseband 110 communicates with an external MCU (Microcontroller Unit, Microcontroller Unit) and other control units through the digital interface module 114 according to the agreed digital interface type. Communication; through the digital baseband 110, the external MCU and other control units can access the memory 120 of the chip through the digital interface module 114 and the memory interface module 115;
所述解码解析模块111以及所述输出控制模块113与所述RFID芯片所在的电子标签上模拟电路相连，所述解码解析模块111被设置为接收通过模拟电路接收的外部射频阅读器发送的射频信号中所带的数据编码；所述输出控制模块113被设置为将反馈数据编码通过模拟电路的天线进行散射发送；The decoding and analysis module 111 and the output control module 113 are connected to the analog circuit on the electronic tag where the RFID chip is located, and the decoding and analysis module 111 is configured to receive the radio frequency signal sent by the external radio frequency reader received through the analog circuit The output control module 113 is configured to encode the feedback data through the antenna of the analog circuit for scattering and sending;
所述初始化模块140被设置为在接收到外接模拟电路的时钟信号以及复位信号后，对芯片进行初始化，唤醒所述数字基带110的其他模块。The initialization module 140 is configured to initialize the chip and wake up other modules of the digital baseband 110 after receiving the clock signal and the reset signal of the external analog circuit.
需要说明的是，上述“UHF”为“Ultra High Frequency”的缩写，即“超高频”。It should be noted that the above "UHF" is the abbreviation of "Ultra High Frequency", that is, "Ultra High Frequency".
在一些实施例中，当无源射频阅读器发射经过调制的射频载波给搭载有所述RFID芯片的电子标签时，电子标签中的模拟电路通过阅读器发送的射频载波中获得工作能量，产生数字基带110工作需要的时钟信号及复位信号，并将数据编码从载波上解调下来，送给数字基带110进行处理。In some embodiments, when the passive radio frequency reader transmits the modulated radio frequency carrier wave to the electronic tag equipped with the RFID chip, the analog circuit in the electronic label obtains working energy from the radio frequency carrier wave sent by the reader to generate digital The clock signal and reset signal required for the operation of the baseband 110 are demodulated from the carrier and sent to the digital baseband 110 for processing.
初始化模块140在电子标签上电后被激活，使所述数字基带110进行初始化；本实施例中，所述的数据编码为TPP编码，包括FM0编码以及米勒编码，在一些实施例中，当接收到一种特定编码规则下的数据编码，则在后续对反馈数据编码时，也应当依据此特定编码规则。The initialization module 140 is activated after the electronic tag is powered on to initialize the digital baseband 110; in this embodiment, the data encoding is TPP encoding, including FMO encoding and Miller encoding. In some embodiments, when When receiving data encoding under a specific encoding rule, the subsequent encoding of the feedback data should also be based on this specific encoding rule.
在一些实施例中，所述数字基带110的每个模块可以为如下：In some embodiments, each module of the digital baseband 110 may be as follows:
所述解码解析模块111被设置为对接收到的通过预设编码规则编码的数据编码进行解码解析，获得对应的解析数据；所述解析数据包括指令和参数中至少之一；The decoding and parsing module 111 is configured to decode and analyze the received data encoding encoded by a preset encoding rule to obtain corresponding parsing data; the parsing data includes at least one of an instruction and a parameter;
在一些实施例中，所述解码解析模块111在接收到通过预设编码规则编码的数据编码后，通过CRC(Cyclic Redundancy Check，循环冗余)校验判断所述数据编码进行校验；若校验通过，则对所述数据编码进行解码解析。In some embodiments, after the decoding and parsing module 111 receives the data encoding encoded by the preset encoding rule, it determines that the data encoding is to be verified through a CRC (Cyclic Redundancy Check, cyclic redundancy) check; If the verification is passed, the data encoding is decoded and analyzed.
所述状态跳转模块112被设置为根据所述解码解析模块111获得解析数据，通过预设规则进行状态跳转，并判断是否需要返回数据；所述状态跳转模块112被设置为对需要返回数据的状态跳转结果，生成状态跳转后的反馈数据；The state jump module 112 is set to obtain the parsed data according to the decoding analysis module 111, perform state jumps according to preset rules, and determine whether the data needs to be returned; the state jump module 112 is set to return to The result of the state jump of the data, and the feedback data after the state jump is generated;
所述输出控制单元被设置为对所述状态跳转模块112生成的反馈数据根据预设的编码规则生成反馈数据编码；并将所述反馈数据编码通过外接天线进行散射发送；The output control unit is configured to generate feedback data encoding for the feedback data generated by the state jump module 112 according to a preset encoding rule; and encode the feedback data for scattered transmission through an external antenna;
所述功耗管理模块130被设置为控制所述数字基带110每个模块以及初始化模块140的开启和关断；在一些实施例中，在依据上述流程每个模块进行工作时，所述功耗管理模块130对于每个模块的开启和关断的控制如下：The power consumption management module 130 is configured to control the turning on and off of each module of the digital baseband 110 and the initialization module 140; in some embodiments, when each module works according to the above process, the power consumption The management module 130 controls the turn-on and turn-off of each module as follows:
所述初始化模块140对芯片进行初始化后，唤醒所述功耗管理模块130；After the initialization module 140 initializes the chip, wake up the power consumption management module 130;
所述功耗管理模块130将所述初始化模块140关断并开启所述解码解密模块；The power consumption management module 130 turns off the initialization module 140 and turns on the decoding and decryption module;
所述解码解析模块111获得解析数据后，所述功耗管理模块130将所述解码解析模块111关断并开启状态跳转模块112；After the decoding analysis module 111 obtains the analysis data, the power consumption management module 130 turns off the decoding analysis module 111 and turns on the state jump module 112;
所述状态跳转模块112生成状态跳转后的反馈数据后，所述功耗管理模块130将所述状态跳转模块112关闭，并开启所述输出控制模块113；After the state jump module 112 generates the feedback data after the state jump, the power consumption management module 130 turns off the state jump module 112 and turns on the output control module 113;
所述输出控制模块113将所述反馈数据编码通过外接天线进行散射发送后，所述功耗管理模块130将所述输出控制模块113关闭，并重新开启所述解密解析模块。After the output control module 113 encodes the feedback data through an external antenna for scattering and transmission, the power consumption management module 130 turns off the output control module 113 and restarts the decryption analysis module.
所述数据接口模块被设置为与外部MCU通过预设的数据接口进行通信连接；The data interface module is configured to communicate with an external MCU through a preset data interface;
所述存储器接口模块115被设置为与所述存储器120进行通信连接；所述外部MCU通过数字接口模块114经由存储器接口模块115访问存储器120；The memory interface module 115 is configured to communicate with the memory 120; the external MCU accesses the memory 120 through the digital interface module 114 via the memory interface module 115;
所述数字接口模块114被设置为检测所述解码解析模块111接收数据编码时产生的起始信号；The digital interface module 114 is configured to detect the start signal generated when the decoding and parsing module 111 receives data encoding;
所述功耗管理模块130在所述数据接口模块检测到起始信号后检测芯片数据总线上传输的信息，并根据预设规则将对应的解析数据以及反馈数据存储至存储器120中。The power consumption management module 130 detects the information transmitted on the chip data bus after the data interface module detects the start signal, and stores the corresponding analysis data and feedback data in the memory 120 according to a preset rule.
当外部的MCU等控制单元通过数字接口对存储器120中的数据进行读取时：When an external MCU or other control unit reads the data in the memory 120 through the digital interface:
所述信号选择模块118被设置为根据外部MCU通过数字接口模块114发送的数据读取请求，生成对应的数据地址；The signal selection module 118 is configured to generate a corresponding data address according to the data read request sent by the external MCU through the digital interface module 114;
所述数字基带110通过所述存储器120接口单元根据所述数据地址在存储器120中读取获得对应数据；并通过所述数字接口模块114将所述数据返回外部MCU；The digital baseband 110 reads the corresponding data in the memory 120 according to the data address through the memory 120 interface unit; and returns the data to the external MCU through the digital interface module 114;
当外部的MCU等控制单元通过数字接口对存储器120中的数据进行写入时：When a control unit such as an external MCU writes data in the memory 120 through a digital interface:
所述数据选择模块被设置为根据外部MCU通过数字接口模块114发送的数据写入请求，获得对应的写入数据，并生成对应的数据地址；The data selection module is configured to obtain corresponding write data according to a data write request sent by the external MCU through the digital interface module 114, and generate a corresponding data address;
所述数字基带110通过所述存储器120接口单元将所述写入数据存储在对应的数据地址中。The digital baseband 110 stores the write data in a corresponding data address through the memory 120 interface unit.
在一些实施例中，所述存储器120中设置有配置寄存器以及中断寄存器；In some embodiments, the memory 120 is provided with a configuration register and an interrupt register;
本实施例中，芯片的存储器120分为四个扇区，BANK 00-BANK11，在扇区BANK 01EPC区域的1F0H至1FFH地址处设置了一个特殊的配置寄存器，所述配置寄存器被设置为配置选择的数字接口；所述数字接口包括SPI(Serial Peripheral Interface，串行外设)数字接口、IIC(Inter-Integrated Circuit，集成电路总线)数字接口以及单线数字接口；所述配置寄存器被设置为对选择的数字接口置为低阻态、对未选择的数字接口置为高组态；In this embodiment, the memory 120 of the chip is divided into four sectors, BANK 00-BANK11, a special configuration register is set at addresses 1F0H to 1FFH in the sector BANK 01EPC area, and the configuration register is set as configuration selection The digital interface; the digital interface includes SPI (Serial Peripheral Interface) digital interface, IIC (Inter-Integrated Circuit, integrated circuit bus) digital interface and single-wire digital interface; the configuration register is set to select The digital interface is set to low impedance state, and the unselected digital interface is set to high configuration;
在扇区BANK 01EPC区域的200H至20FH地址处设置了一个特殊的中断寄存器，所述中断寄存器被设置为在所述射频信号通过所述中断寄存器所在地址读或写数据时，在所述芯片的对应引脚参数中断信号；当操作为读数据时，在所述读数据开始的同时产生中断信号；当操作为写数据时，在写数据结束的同时产生中断信号。A special interrupt register is set at addresses 200H to 20FH in the sector BANK 01EPC area. The interrupt register is set to read or write data on the chip when the radio frequency signal passes through the address where the interrupt register is located. Corresponding to the pin parameter interrupt signal; when the operation is reading data, an interrupt signal is generated at the same time when the reading data starts; when the operation is writing data, an interrupt signal is generated at the end of writing data.
图2为本申请具体实施方式的一种支持数字通信接口的UHF RFID芯片的引脚示意图；如图2所示：Figure 2 is a schematic diagram of the pins of a UHF RFID chip supporting a digital communication interface according to a specific implementation of this application; as shown in Figure 2:
所述引脚包括芯片地引脚GND、芯片电源正极引脚VDD、芯片天线正端引脚RFP、芯片天线负端引脚RFN、第一数字接口引脚SCLK/SCK/DATA(所述第一数字接口引脚包含的三个不同的标识是指分别在SPI、IIC、单线数字接口情况下的标识名称)、第二数字接口引脚MISO/SDA(所述第一数字接口引脚包含的两个不同的标识是指分别在SPI、IIC数字接口情况下的标识名称)、第三数字接口引脚MOSI、第四数字接口引脚NSS；The pins include the chip ground pin GND, the chip power positive pin VDD, the chip antenna positive pin RFP, the chip antenna negative pin RFN, the first digital interface pin SCLK/SCK/DATA (the first The three different identifications contained in the digital interface pins refer to the identification names in the case of SPI, IIC, and single-wire digital interface respectively), the second digital interface pin MISO/SDA (the two first digital interface pins included The two different identifications refer to the identification names in the case of SPI and IIC digital interfaces respectively), the third digital interface pin MOSI, and the fourth digital interface pin NSS;
当使用SPI数字接口时，通过所述第一数字接口引脚SCLK、第二数字接口引脚MISO、第三数字接口引脚MOSI、第四数字接口引脚NSS进行通信；When using the SPI digital interface, communication is performed through the first digital interface pin SCLK, the second digital interface pin MISO, the third digital interface pin MOSI, and the fourth digital interface pin NSS;
当使用IIC数字接口时，通过第一数字接口引脚SCK、第二数字接口引脚SDA进行通信；When using the IIC digital interface, communication is carried out through the first digital interface pin SCK and the second digital interface pin SDA;
当使用单线数字接口时，使用第一数字接口引脚DATA进行通信。When a single-wire digital interface is used, the first digital interface pin DATA is used for communication.
在一些实施例中，所述UHF RFID芯片主要作为电子标签的芯片来使用，应用如上所述UHF RFID芯片的电子标签，包括UHF RFID芯片以及模拟电路；In some embodiments, the UHF RFID chip is mainly used as an electronic tag chip, and the electronic tag using the UHF RFID chip as described above includes a UHF RFID chip and an analog circuit;
所述UHF RFID芯片的引脚对应焊接在所述模拟电路上，与模拟电路进行通信连接；The pins of the UHF RFID chip are correspondingly welded on the analog circuit, and communicate with the analog circuit;
所述模拟电路包括通信模块以及滤波模块；The analog circuit includes a communication module and a filtering module;
所述通信模块包括天线，所述通信模块被设置为接收外部射频阅读器发送的带有数据编码的射频载波；The communication module includes an antenna, and the communication module is configured to receive a radio frequency carrier with data encoding sent by an external radio frequency reader;
所述滤波单元被设置为对所述射频载波进行滤波，并对所述射频载波上解调，获得通过预设编码规则编码的数据编码；The filtering unit is configured to filter the radio frequency carrier and demodulate the radio frequency carrier to obtain a data code encoded by a preset encoding rule;
所述模拟电路被设置为在接收到射频载波后，向所述UHF RFID芯片的数字基带110发送时钟信号以及复位信号，并将所述数据编码发送至所述数据基带的解码解析模块111。The analog circuit is configured to send a clock signal and a reset signal to the digital baseband 110 of the UHF RFID chip after receiving the radio frequency carrier, and send the data code to the decoding and analysis module 111 of the data baseband.
图3为本申请具体实施方式的一种支持数字通信接口的UHF RFID芯片的应用方法的流程图。如图3所示，所述方法包括：Fig. 3 is a flow chart of an application method of a UHF RFID chip supporting a digital communication interface according to a specific embodiment of the application. As shown in Figure 3, the method includes:
步骤310，接收通过预设编码规则编码的数据编码，并对所述数据编码进行解析，获得对应的解析数据；Step 310: Receive a data code encoded by a preset coding rule, and parse the data code to obtain corresponding parsed data;
步骤320，根据所述解析数据通过预设规则进行状态跳转，并判断是否需要返回数据；Step 320: Perform a state jump through preset rules according to the parsed data, and determine whether it is necessary to return data;
步骤330，若判断需要返回数据，则根据状态跳转结果生成状态跳转后的反馈数据；Step 330: If it is determined that data needs to be returned, generate feedback data after the state jump according to the result of the state jump;
步骤340，对所述状态跳转模块生成的反馈数据根据预设的编码规则生成反馈数据编码；并将所述反馈数据编码通过外接天线进行散射发送。Step 340: Generate feedback data encoding for the feedback data generated by the state jump module according to a preset encoding rule; and encode the feedback data for scattered transmission through an external antenna.
步骤350，实时检测通过数字接口接收数据编码时产生的起始信号； Step 350, real-time detection of the start signal generated when data encoding is received through the digital interface;
步骤360，当检测到所述起始信号后，检测芯片数据总线上传输的信息，并根据预设规则将对应的解析数据以及反馈数据存储至存储器中。Step 360: After the start signal is detected, the information transmitted on the chip data bus is detected, and the corresponding analysis data and feedback data are stored in the memory according to a preset rule.
在一些实施例中，当接收数据读取请求时，根据外部MCU通过发送的数据读取请求，生成对应的数据地址；In some embodiments, when a data read request is received, a corresponding data address is generated according to the data read request sent by the external MCU;
根据所述数据地址在存储器中读取获得对应数据；并通过所述数字接口模块将所述数据返回外部MCU；Read corresponding data in the memory according to the data address; and return the data to the external MCU through the digital interface module;
当接收数据写入请求时，根据外部MCU通过发送的数据写入请求，获得对应的写入数据，并生成对应的数据地址；When receiving a data write request, obtain the corresponding write data according to the data write request sent by the external MCU, and generate the corresponding data address;
将所述写入数据存储在对应的数据地址中。The written data is stored in the corresponding data address.
在一些实施例中，在接收通过预设编码规则编码的数据编码前，所述方法还包括：In some embodiments, before receiving data encoding encoded by a preset encoding rule, the method further includes:
通过与UHF RFID芯片相连接的模拟电路，接收外部射频阅读器发送的带有数据编码的射频载波；Through the analog circuit connected to the UHF RFID chip, receive the radio frequency carrier with data encoding sent by the external radio frequency reader;
所述模拟电路对所述射频载波进行滤波，并对所述射频载波上解调，获得通过预设编码规则编码的数据编码；The analog circuit filters the radio frequency carrier, demodulates the radio frequency carrier, and obtains a data code encoded by a preset encoding rule;
所述模拟电路将所述数据编码、时钟信号以及复位信号发送至所述数据基带；The analog circuit sends the data encoding, the clock signal, and the reset signal to the data baseband;
在接收到外接模拟电路的时钟信号以及复位信号后，对芯片进行初始化。After receiving the clock signal and reset signal of the external analog circuit, the chip is initialized.
在一些实施例中，接收到通过预设编码规则编码的数据编码后，通过CRC校验判断所述数据编码进行校验；In some embodiments, after receiving the data encoding encoded by the preset encoding rule, the data encoding is determined to be verified through CRC check;
若校验通过，则对所述数据编码进行解码解析。If the check is passed, the data encoding is decoded and analyzed.
在一些实例中，并未详细示出公知的方法、结构和技术，以便不模糊对本说明书的理解。In some instances, well-known methods, structures, and technologies are not shown in detail, so as not to obscure the understanding of this specification.
本领域那些技术人员可以理解，可以对实施例中的设备中的模块进行自适应性地改变并且把它们设置在与该实施例不同的一个或多个设备中。可以把实施例中的模块或单元或组件组合成一个模块或单元或组件，以及此外可以把它们分成多个子模块或子单元或子组件。除了这样的特征和/或过程或者单元中的至少一些是相互排斥之外，可以采用任何组合对本说明书(包括伴随的权利要求、摘要和附图)中公开的所有特征以及如此公开的任何方法或者设备的所有过程或单元进行组合。除非另外明确陈述，本说明书(包括伴随的权利要求、摘要和附图)中公开的每个特征可以由提供相同、等同或相似目的的替代特征来代替。本说明书中涉及到的步骤编号仅用于区别步骤，而并不用于限制步骤之间的时间或逻辑的关系，除非文中有明确的限定，否则每个步骤之间的关系包括各种可能的情况。Those skilled in the art can understand that it is possible to adaptively change the modules in the device in the embodiment and set them in one or more devices different from the embodiment. The modules or units or components in the embodiments can be combined into one module or unit or component, and in addition, they can be divided into multiple sub-modules or sub-units or sub-components. Except that at least some of such features and/or processes or units are mutually exclusive, any combination can be used to compare all the features disclosed in this specification (including the accompanying claims, abstract and drawings) and any method or methods disclosed in this manner or All the processes or units of the equipment are combined. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose. The step numbers involved in this manual are only used to distinguish the steps, not to limit the time or logical relationship between the steps. Unless there is a clear limitation in the text, the relationship between each step includes various possible situations. .
此外，本领域的技术人员能够理解，尽管在此所述的一些实施例包括其它实施例中所包括的某些特征而不是其它特征，但是不同实施例的特征的组合意 味着处于本公开的范围之内并且形成不同的实施例。例如，在权利要求书中所要求保护的实施例的任意之一都可以以任意的组合方式来使用。In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means that they are within the scope of the present disclosure. Within and form different embodiments. For example, any one of the embodiments claimed in the claims can be used in any combination.
本公开的每个部件实施例可以以硬件实现，或者以在一个或者多个处理器上运行的软件模块实现，或者以它们的组合实现。本公开还可以实现为用于执行这里所描述的方法的一部分或者全部的设备或者***程序(例如，计算机程序和计算机程序产品)。这样的实现本公开的程序可以存储在计算机可读介质上，或者可以具有一个或者多个信号的形式。这样的信号可以从因特网网站上下载得到，或者在载体信号上提供，或者以任何其他形式提供。Each component embodiment of the present disclosure may be implemented in hardware, or implemented in software modules running on one or more processors, or implemented in a combination thereof. The present disclosure can also be implemented as a device or system program (for example, a computer program and a computer program product) for executing part or all of the methods described herein. Such a program for realizing the present disclosure may be stored on a computer-readable medium, or may have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.
本领域技术人员在不脱离所附权利要求的范围的情况下可设计出替换实施例。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本公开可以借助于包括有若干不同元件的硬件以及借助于适当编程的计算机来实现。在列举了若干***的单元权利要求中，这些***中的若干个可以是通过同一个硬件项来具体体现。Those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of multiple such elements. The present disclosure can be realized by means of hardware including several different elements and by means of a suitably programmed computer. In the unit claims enumerating several systems, several of these systems can be embodied in the same hardware item.
本申请的技术方案，提供了一种支持数字通信接口的UHF RFID芯片及其应用方法，所述UHF RFID芯片及应用方法通过设计支持多种数字通信接口的UHF RFID芯片，无需加装RFID读写器，通过数字接口建立UHF RFID芯片与MCU等控制单元的通信，单芯片不再只能孤岛运行，为构造复杂电路、丰富应用场景提供基础；因无需加装RFID读写器，所述UHF RFID芯片可以集成在设备内部，作为设备的唯一标识，实现了设备小型化、低功耗、高可靠运行，有助于设备长寿命运行。The technical solution of the present application provides a UHF RFID chip that supports digital communication interfaces and an application method thereof. The UHF RFID chip and application method of the UHF RFID chip and application method support multiple digital communication interfaces by designing a UHF RFID chip that does not require additional RFID reading and writing. The UHF RFID chip communicates with the MCU and other control units through the digital interface. The single chip can no longer only run in islands, providing a basis for constructing complex circuits and rich application scenarios; because there is no need to install an RFID reader, the UHF RFID The chip can be integrated inside the device, as the only identification of the device, to realize the miniaturization, low power consumption, and high reliability of the device, which helps the device to operate for a long time.

Claims (13)

  1. 一种支持数字通信接口的射频识别芯片，所述射频识别芯片包括数字基带、存储器、功耗管理模块以及引脚；所述数字基带包括：A radio frequency identification chip supporting a digital communication interface. The radio frequency identification chip includes a digital baseband, a memory, a power consumption management module, and pins; the digital baseband includes:
    解码解析模块，所述解码解析模块被设置为对接收到的通过预设编码规则编码的数据编码进行解码解析，获得对应的解析数据；所述解析数据包括指令和参数中至少之一；A decoding analysis module, the decoding analysis module is configured to decode and analyze the received data encoding encoded by a preset encoding rule to obtain corresponding analysis data; the analysis data includes at least one of an instruction and a parameter;
    状态跳转模块，所述状态跳转模块被设置为根据所述解码解析模块获得的所述解析数据，通过预设规则进行状态跳转，并判断是否需要返回数据；所述状态跳转模块被设置为对需要返回数据的状态跳转结果，生成状态跳转后的反馈数据；The state jump module, the state jump module is set to perform state jump according to the analysis data obtained by the decoding analysis module, and determine whether it is necessary to return data; the state jump module is Set to generate the feedback data after the state jump for the result of the state jump that needs to return data;
    输出控制模块，所述输出控制单元被设置为对所述状态跳转模块生成的所述反馈数据根据预设的编码规则生成反馈数据编码；并将所述反馈数据编码通过外接天线进行散射发送；An output control module, where the output control unit is configured to generate feedback data encoding for the feedback data generated by the state jump module according to a preset encoding rule; and encode the feedback data for scattered transmission through an external antenna;
    数字接口模块，所述数据接口模块被设置为与外部微控制单元通过预设的数据接口进行通信连接；A digital interface module, the data interface module is set to communicate with an external micro-control unit through a preset data interface;
    存储器接口模块，所述存储器接口模块被设置为与所述存储器进行通信连接；所述外部微控制单元通过所述数字接口模块经由所述存储器接口模块访问存储器；A memory interface module, where the memory interface module is configured to communicate with the memory; the external micro-control unit accesses the memory via the memory interface module through the digital interface module;
    所述数字接口模块被设置为检测所述解码解析模块接收数据编码时产生的起始信号；The digital interface module is configured to detect the start signal generated when the decoding and parsing module receives data encoding;
    所述功耗管理模块在所述数据接口模块检测到所述起始信号后检测芯片数据总线上传输的信息，并根据预设规则将对应的所述解析数据以及所述反馈数据存储至所述存储器中。The power consumption management module detects the information transmitted on the chip data bus after the data interface module detects the start signal, and stores the corresponding analysis data and the feedback data in the In memory.
  2. 根据权利要求1所述的射频识别芯片，其中，所述射频识别芯片还包括初始化模块；The radio frequency identification chip according to claim 1, wherein the radio frequency identification chip further comprises an initialization module;
    所述初始化模块被设置为在接收到外接模拟电路的时钟信号以及复位信号后，对所述射频识别芯片进行初始化，唤醒所述数字基带的其他模块。The initialization module is configured to initialize the radio frequency identification chip and wake up other modules of the digital baseband after receiving the clock signal and the reset signal of the external analog circuit.
  3. 根据权利要求1所述的射频识别芯片，其中，所述数字基带还包括信号选择模块；The radio frequency identification chip according to claim 1, wherein the digital baseband further comprises a signal selection module;
    所述信号选择模块被设置为根据外部微控制单元通过所述数字接口模块发送的数据读取请求，生成对应的数据地址；The signal selection module is configured to generate a corresponding data address according to a data read request sent by the external micro-control unit through the digital interface module;
    所述数字基带通过所述存储器接口单元根据所述数据地址在所述存储器中 读取获得对应数据；并通过所述数字接口模块将所述数据返回外部微控制单元；The digital baseband reads the corresponding data in the memory according to the data address through the memory interface unit; and returns the data to the external micro-control unit through the digital interface module;
    所述数据选择模块被设置为根据外部微控制单元通过数字接口模块发送的数据写入请求，获得对应的写入数据，并生成对应的数据地址；The data selection module is configured to obtain corresponding write data according to a data write request sent by the external micro-control unit through the digital interface module, and generate a corresponding data address;
    所述数字基带通过所述存储器接口单元将所述写入数据存储在对应的数据地址中。The digital baseband stores the write data in a corresponding data address through the memory interface unit.
  4. 根据权利要求1所述的射频识别芯片，其中，所述存储器中设置有配置寄存器以及中断寄存器；The radio frequency identification chip according to claim 1, wherein the memory is provided with a configuration register and an interrupt register;
    所述配置寄存器被设置为配置选择的数字接口；所述数字接口包括串行外设数字接口、集成电路总线数字接口以及单线数字接口；所述配置寄存器被设置为对选择的数字接口置为低阻态、对未选择的数字接口置为高组态；The configuration register is set to configure the selected digital interface; the digital interface includes a serial peripheral digital interface, an integrated circuit bus digital interface, and a single-wire digital interface; the configuration register is set to set the selected digital interface to low Resistive state, set the unselected digital interface to high configuration;
    所述中断寄存器被设置为在射频信号通过所述中断寄存器所在地址读或写数据时，在所述射频识别芯片的对应引脚参数中断信号；当操作为读数据时，在所述读数据开始的同时产生中断信号；当操作为写数据时，在写数据结束的同时产生中断信号。The interrupt register is set to parameter interrupt signals on the corresponding pins of the radio frequency identification chip when the radio frequency signal passes through the address where the interrupt register is located to read or write data; when the operation is to read data, when the read data starts An interrupt signal is generated at the same time; when the operation is to write data, an interrupt signal is generated at the end of writing data.
  5. 根据权利要求1所述的射频识别芯片，其中，所述引脚包括芯片地引脚、芯片电源正极引脚、芯片天线正端引脚、芯片天线负端引脚、第一数字接口引脚、第二数字接口引脚、第三数字接口引脚、第四数字接口引脚；The radio frequency identification chip according to claim 1, wherein the pins include a chip ground pin, a chip power supply positive pin, a chip antenna positive terminal pin, a chip antenna negative terminal pin, a first digital interface pin, The second digital interface pin, the third digital interface pin, and the fourth digital interface pin;
    当使用串行外设数字接口时，所述射频识别芯片通过所述第一数字接口引脚、所述第二数字接口引脚、所述第三数字接口引脚、所述第四数字接口引脚进行通信；When a serial peripheral digital interface is used, the radio frequency identification chip is led through the first digital interface pin, the second digital interface pin, the third digital interface pin, and the fourth digital interface pin. Feet to communicate;
    当使用集成电路总线数字接口时，所述射频识别芯片通过所述第一数字接口引脚和所述第二数字接口引脚进行通信；When using the integrated circuit bus digital interface, the radio frequency identification chip communicates through the first digital interface pin and the second digital interface pin;
    当使用单线数字接口时，所述射频识别芯片通过所述第一数字接口引脚进行通信。When a single-wire digital interface is used, the radio frequency identification chip communicates through the first digital interface pin.
  6. 根据权利要求1所述的射频识别芯片，其中，The radio frequency identification chip according to claim 1, wherein:
    所述解码解析模块在接收到通过预设编码规则编码的数据编码后，通过循环冗余校验判断所述数据编码进行校验；After receiving the data code encoded by the preset encoding rule, the decoding analysis module judges the data code for verification through a cyclic redundancy check;
    基于校验通过的判断结果，对所述数据编码进行解码解析。Based on the judgment result passed the check, the data encoding is decoded and analyzed.
  7. 根据权利要求2所述的射频识别芯片，其中，The radio frequency identification chip according to claim 2, wherein:
    所述功耗管理模块被设置为控制所述数字基带其余模块的开启和关断；The power consumption management module is configured to control the turning on and off of the remaining modules of the digital baseband;
    所述初始化模块对芯片进行初始化后，唤醒所述功耗管理模块；After the initialization module initializes the chip, wake up the power consumption management module;
    所述功耗管理模块将所述初始化模块关断并开启所述解码解密模块；The power consumption management module turns off the initialization module and turns on the decoding and decryption module;
    所述解码解析模块获得解析数据后，所述功耗管理模块将所述解码解析模块关断并开启状态跳转模块；After the decoding analysis module obtains the analysis data, the power consumption management module turns off the decoding analysis module and turns on the state jump module;
    所述状态跳转模块生成状态跳转后的反馈数据后，所述功耗管理模块将所述状态跳转模块关闭，并开启所述输出控制模块；After the state jump module generates feedback data after the state jump, the power consumption management module turns off the state jump module and turns on the output control module;
    所述输出控制模块将所述反馈数据编码通过外接天线进行散射发送后，所述功耗管理模块将所述输出控制模块关闭，并重新开启所述解密解析模块。After the output control module encodes the feedback data through an external antenna for scattering and transmission, the power consumption management module turns off the output control module and restarts the decryption analysis module.
  8. 一种应用如权利要求1所述射频识别芯片的电子标签，其中，所述标签包括射频识别芯片以及模拟电路；An electronic tag using the radio frequency identification chip according to claim 1, wherein the tag includes a radio frequency identification chip and an analog circuit;
    所述射频识别芯片的引脚对应焊接在所述模拟电路上，与模拟电路进行通信连接；The pins of the radio frequency identification chip are correspondingly soldered on the analog circuit, and communicate with the analog circuit;
    所述模拟电路包括通信模块以及滤波模块；The analog circuit includes a communication module and a filtering module;
    所述通信模块包括天线，所述通信模块被设置为接收外部射频阅读器发送的带有数据编码的射频载波；The communication module includes an antenna, and the communication module is configured to receive a radio frequency carrier with data encoding sent by an external radio frequency reader;
    所述滤波单元被设置为对所述射频载波进行滤波，并对所述射频载波上解调，获得通过预设编码规则编码的数据编码；The filtering unit is configured to filter the radio frequency carrier and demodulate the radio frequency carrier to obtain a data code encoded by a preset encoding rule;
    所述模拟电路被设置为在接收到射频载波后，向所述射频识别芯片的数字基带发送时钟信号以及复位信号，并将所述数据编码发送至所述数据基带的解码解析模块。The analog circuit is configured to send a clock signal and a reset signal to the digital baseband of the radio frequency identification chip after receiving the radio frequency carrier, and send the data code to the decoding and analysis module of the data baseband.
  9. 一种支持数字通信接口的射频识别芯片的应用方法，所述方法包括：An application method of a radio frequency identification chip supporting a digital communication interface, the method comprising:
    接收通过预设编码规则编码的数据编码，并对所述数据编码进行解析，获得对应的解析数据；Receiving data encoding encoded by a preset encoding rule, and analyzing the data encoding to obtain corresponding analysis data;
    根据所述解析数据通过预设规则进行状态跳转，并判断是否需要返回数据；Perform a state jump through preset rules according to the parsed data, and determine whether it is necessary to return data;
    基于需要返回数据的判断结果，根据状态跳转结果生成状态跳转后的反馈数据；Based on the judgment result that the data needs to be returned, the feedback data after the state jump is generated according to the state jump result;
    对所述反馈数据，根据预设的编码规则生成反馈数据编码；并将所述反馈数据编码通过外接天线进行散射发送。For the feedback data, a feedback data code is generated according to a preset coding rule; and the feedback data code is scattered and sent through an external antenna.
  10. 根据权利要求9所述的方法，所述方法还包括：The method according to claim 9, further comprising:
    实时检测通过数字接口接收数据编码时产生的起始信号；Real-time detection of the start signal generated when data encoding is received through the digital interface;
    当检测到所述起始信号后，检测芯片数据总线上传输的信息，并根据预设规则将对应的解析数据以及反馈数据存储至存储器中。When the start signal is detected, the information transmitted on the chip data bus is detected, and the corresponding analysis data and feedback data are stored in the memory according to a preset rule.
  11. 根据权利要求10所述的方法，其中，The method of claim 10, wherein:
    当接收数据读取请求时，根据外部微控制单元通过发送的数据读取请求，生成对应的数据地址；When receiving a data read request, generate the corresponding data address according to the data read request sent by the external micro-control unit;
    根据所述数据地址在存储器中读取获得对应数据；并通过所述数字接口模块将所述数据返回外部微控制单元；Read corresponding data in the memory according to the data address; and return the data to the external micro-control unit through the digital interface module;
    当接收数据写入请求时，根据外部微控制单元通过发送的数据写入请求，获得对应的写入数据，并生成对应的数据地址；When receiving a data write request, obtain the corresponding write data according to the data write request sent by the external micro-control unit, and generate the corresponding data address;
    将所述写入数据存储在对应的数据地址中。The written data is stored in the corresponding data address.
  12. 根据权利要求9所述的方法，其中，在接收通过预设编码规则编码的数据编码前，所述方法还包括：The method according to claim 9, wherein, before receiving data encoding encoded by a preset encoding rule, the method further comprises:
    通过与射频识别芯片相连接的模拟电路，接收外部射频阅读器发送的带有数据编码的射频载波；Through the analog circuit connected with the radio frequency identification chip, receive the radio frequency carrier with data code sent by the external radio frequency reader;
    所述模拟电路对所述射频载波进行滤波，并对所述射频载波上解调，获得通过预设编码规则编码的数据编码；The analog circuit filters the radio frequency carrier, demodulates the radio frequency carrier, and obtains a data code encoded by a preset encoding rule;
    所述模拟电路将所述数据编码、时钟信号以及复位信号发送至所述数据基带；The analog circuit sends the data encoding, the clock signal, and the reset signal to the data baseband;
    在接收到外接模拟电路的时钟信号以及复位信号后，对芯片进行初始化。After receiving the clock signal and reset signal of the external analog circuit, the chip is initialized.
  13. 根据权利要求9所述的方法，其中，The method according to claim 9, wherein:
    接收到通过预设编码规则编码的数据编码后，通过循环冗余校验判断所述数据编码进行校验；After receiving the data code encoded by the preset encoding rule, determine the data code for verification through a cyclic redundancy check;
    基于校验通过的判断结果，对所述数据编码进行解码解析。Based on the judgment result passed the check, the data encoding is decoded and analyzed.
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