RFID系统中VCD端数字部分设计  

Design on VCD Digital Part in RFID System

作　　者：朱军[1] 王惠阳[1] 张元[1] 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,安徽合肥230039

出　　处：《通信技术》2012年第2期118-120,共3页Communications Technology

基　　金：安徽省高等学校省级自然科学研究重点项目(No.KJ2010A020);安徽大学211工程三期教学质量工程经费资助项目(No.40010014;39020014)

摘　　要：射频识别技术中关键问题之一是如何解决多个标签同时发送消息产生的冲突,减少对标签漏检和错检的概率。分析了射频识别系统中靠近耦合器件端模块的基本功能,并用主状态机设置状态来选择工作的模块。设计完成了符合ISO/IEC15693标准的阅读器端数字部分,采用二进制搜索抗冲突算法,能完成标签的识别,无漏检、无错检,结构简单,为设计近耦合器端数字部分提供了依据。A key problem of radio frequency identification technology is how to avoid the collisions resulted form the simulataneous sending of the messages by multiple tags,and thus to reduce the probability of false or missed detection.The basic functions in the vicinity of couple device part in RFID system are analyzed,and the main state machine is used to select the working modules.The digital part of reader tallying with StandardISO/ IEC15693 is designed and implemented.By the binary search anti-collision algorithm,the reader could realize tags recognition,without any false or missed detection,and for its simple structure,this could provide a reference for the design of digital part in the vicinity of couple device.

关 键 词：射频识别 抗冲突算法 数字前端 近耦合端模块 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]