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A near-field communication test system and method

A near-field communication and testing system technology, applied in near-field transmission systems, near-field transmission systems in radio frequency identification systems, read/write/interrogation/recognition near-field transmission systems, etc., can solve the lack of NFC test equipment and test methods and other problems to achieve the effect of testing specifications, ensuring the integrity of transmission, and ensuring accuracy

Active Publication Date: 2022-06-24
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the lack of NFC test equipment and test methods, the present invention proposes a near field communication test system, test method and listening test method

Method used

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  • A near-field communication test system and method
  • A near-field communication test system and method
  • A near-field communication test system and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The proximity coupling device (PCD) simulation test system of the present invention is as follows: figure 1As shown, the test system includes a host computer 1 and a test instrument 2, wherein the test instrument 2 includes a main chip 21 and an analog front end 22, and the analog front end 22 is responsible for generating an electromagnetic field to interact with the matching device; the main chip 21 at least includes a control unit 211 and processing unit 212 . In this embodiment, the host computer 1 is a PC; the main chip 21 adopts the Zynq-7000 platform of Xilinx Company, which includes two parts: PS (Processing System) and PL (Programmable Logic). The ARM architecture is essentially adopted, and the PL is the processing unit 212 , which is essentially an FPGA (Field-Programmable Gate Array) array; the matching device 3 that interacts with the analog front end 22 is an NFC tag. The system can complete the compatibility test of ISO / IEC14443-A-3 / 4. Among them, ARM211...

Embodiment 2

[0037] Similar to the system structure of Embodiment 1, the system of the present invention can also perform Proximity Integrated Circuit Card (PICC) simulation. In the PICC simulation, only the matching device is replaced by the NFC tag with the PCD device. Correspondingly, the EM10 port of the ARM The identification is the status frame of the PICC, and the command issued by the PC is the PlCC simulation related command.

Embodiment 3

[0039] The system of Embodiment 1 or 2 can also be used as a monitoring device to capture the real-time signal interaction on the output field for the communication based on the ISO / IEC 14443 protocol, so as to achieve the function of recording the complete communication process, which can effectively detect the data interaction situation. , is an important part of the test. see image 3 , When used as a monitoring device, AXI protocol is used for communication between ARM211 and FPGA212, ARM211 is connected to FPGA212 through internal interfaces AXI_GP Master and AXI_HP Slave, and a storage unit is opened in ARM211 to store monitoring data. Its overall flow chart is as follows Figure 4 As shown, ARM211 first initializes the AXI-DMA IP core, and then caches the data uploaded by FPGA211 through the internal interrupt trigger mechanism, and adds a time tag when caching, and stores it in the storage unit developed by ARM211. When uploading the signal, ARM211 uploads the data i...

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Abstract

The present invention proposes a near-field communication test system and method. The test system includes a host computer, a main chip, and an analog front-end. The analog front-end can electromagnetically interact with matching equipment to realize near-field communication; the main chip includes a control unit and a unit, wherein the control unit is connected to the host computer, and analyzes the commands issued by the host computer, and reorganizes the data and sends it to the processing unit, and the connection between the control unit and the processing unit Using an internal high-speed interface connection, the processing unit modulates and demodulates the issued commands and forms a control signal to control the analog front end. The system and method proposed by the present invention realize the compatibility test of the ISO / IEC14443-3 / 4 layer protocol, satisfy the physical performance test requirements of various types of near-field communication terminal equipment in different situations, and make the near-field communication terminal The performance test is more standardized, unified, accurate and has practical application value.

Description

technical field [0001] The present invention relates to the field of near field communication, in particular to a system and method for testing near field communication equipment. Background technique [0002] Near Field Communication (NFC) technology was first developed in 2002 by Philips of the Netherlands and Sony of Japan, and is a short-range non-contact identification and interconnection technology jointly promoted by famous manufacturers such as Nokia and Sony. The original 13.56MHz non-contact radio frequency identification (Radio Frequency Identification, RFID) technology and wireless interconnection technology have evolved from integrating RFID readers, RFID tags and point-to-point communication functions, and can identify and data with compatible devices within a short distance. exchange. [0003] In recent years, with the rapid development of the mobile Internet, the demand for short-range interconnection technology in mobile devices has made NFC technology wide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/391H04L43/02H04L43/0817H04B5/00
CPCH04B17/391H04B17/3912H04L43/02H04L43/0817H04B5/77
Inventor 张锦南孙恺泽赵泽学陈俊达郑文浩李传岚左勇唐宇郝宏宇王靖涵谭泽斌万艺航张霞颜鑫
Owner BEIJING UNIV OF POSTS & TELECOMM
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