UHF频段移动支付读卡器系统设计与实现

发布时间：2018-01-13 13:17

本文关键词：UHF频段移动支付读卡器系统设计与实现　出处：《电子科技大学》2010年硕士论文　论文类型：学位论文

更多相关文章： 移动支付 读卡器 射频识别 超高频

【摘要】： 移动支付,一种在射频识别(RFID)和互连技术基础上发展起来的技术,也可称为手机支付,可定义为:“通过手机等移动通讯设备来进行交易的行为方式”。随着第三代移动通信的大规模推广,移动支付已成为各方聚焦的热点议题,其技术架构可实现电子支付、数据交换、身份认证、防伪、票务、广告等各种功能,引发一系列新型的用户消费及应用模式。来自工信部的数据显示,截至2009年上半年,我国手机支付定制用户总量接近两千万户,支付金额共170亿元。但是,我们也看到,我国的移动支付尚处于起步阶段,还没有形成一套完整的技术标准,而超高频移动支付方案更是还有大量的研究工作要做,使技术更加成熟,方案更加完善,形成完整的超高频移动支付标准。本文正是在这样的发展背景下,总结了射频识别系统的电磁学基础和天线理论;深入研究了移动支付系统的基本原理、发展历程、发展现状,采用软硬件相结合的方式,设计了一款超高频远距离移动支付读卡器,其读写距离可达10m以上;提出了一种超高频距离定位技术,使移动支付的使用环境更加安全,创新了移动支付的理论方法。主要工作如下: 首先,在对射频识别相关电磁理论和天线技术综述基础上,分析并设计了本项目的开发流程,详细介绍了超高频移动支付系统的性能指标、基本组成、工作原理及数据协议。其次,根据工作原理完成了系统的工作状态图;对系统的低功耗思想及距离控制方法进行了说明,完成了系统硬件芯片的选型分析。第三,讨论了RF-SIM方案读卡器的硬件组成和设计方法。分别对读卡器的射频收发器模块、MCU模块以及距离控制模块等部分进行了软硬件设计。第四,创新性的提出了一种距离定位的方法;为实现长距离射频传输要求,设计了射频功率放大器(RFPA)作为读卡器前端收发电路;根据读卡器需要设计了一种宽频带微带天线。第五,完成了2.4GHz移动支付读卡器系统PCB的设计及软硬件的调试。
[Abstract]:Mobile payment, a technology developed on the basis of radio frequency identification (RFID) and interconnection technology, can also be called mobile phone payment. It can be defined as "the behavior of transaction through mobile communication devices such as mobile phones". With the large-scale promotion of the third generation mobile communication, mobile payment has become a hot topic. Its technical framework can achieve electronic payment, data exchange, identity authentication, security, ticketing, advertising and other functions, leading to a series of new user consumption and application patterns. Data from the Ministry of Industry and Information Technology display. Up to the first half of 2009, the total number of mobile phone payment custom users in China is close to 20 million, the total payment amount is 17 billion yuan. However, we also see that mobile payment in China is still in its infancy. There is not yet a complete set of technical standards, and the UHF mobile payment scheme still has a lot of research work to do, so that the technology is more mature, the scheme is more perfect, forming a complete UHF mobile payment standard. In this paper, the electromagnetic theory and antenna theory of RFID system are summarized. In this paper, the basic principle, development history and current situation of mobile payment system are studied in depth. A UHF remote mobile payment card reader is designed by combining software and hardware. The distance between reading and writing is more than 10m. In this paper, a UHF distance location technology is proposed to make the mobile payment environment more secure, and the theoretical method of mobile payment is innovated. The main work is as follows: First of all, on the basis of summarizing the theory of radio frequency identification (RFID) and antenna technology, the development process of this project is analyzed and designed, and the performance index and basic composition of UHF mobile payment system are introduced in detail. Working principle and data protocol. Secondly, the working state diagram of the system is completed according to the working principle, the low power consumption thought and the distance control method of the system are explained, and the selection and analysis of the hardware chip of the system are completed. Thirdly, the hardware composition and design method of the RF-SIM card reader are discussed, and the hardware and software of the RF transceiver module and the distance control module of the card reader are designed respectively. 4th, an innovative method of distance positioning is proposed. In order to meet the requirement of long distance RF transmission, RF power amplifier (RFPA) is designed as the transceiver of card reader. A wide band microstrip antenna is designed according to the needs of card reader. 5th, completed 2.4 GHz mobile payment card reader system PCB design and hardware and software debugging.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TP391.44;F713.36

【引证文献】