基于μC/OS-Ⅱ的超高频双协议RFID读写器设计  

Design of dual-protocol UHF RFID reader based on μC/OS-Ⅱ

作　　者：商昌彬[1] 马庆彪 张玉璘[1] 

机构地区：[1]济南大学信息科学与工程学院,山东济南250022 [2]山东公路技师学院,山东济南250022

出　　处：《电子技术应用》2012年第10期19-22,共4页Application of Electronic Technique

摘　　要：在超高频段,ISO18000-6标准中的6B多用于交通领域,而6C主要用于物流、生产管理和供应链管理领域,二者都是目前常用的标准协议。鉴于此,提出一种同时支持ISO18000-6B和6C双协议超高频RFID读写器的设计。该设计采用基于专用芯片AS3992的射频前端模块和以LM3S8962为主的控制模块,搭载μC/OS-Ⅱ系统,通过程序进行串口初始化、AS3992驱动、防碰撞算法、CRC校验和寄存器的读写操作等实现对电子标签的远距离操作。本系统具有开发简单、功耗低、体积小、成本低的特点。In the ISO18000-6 standard, 6B is mainly used in traffic area and 6C is mainly used in logistics, production man- agement and supply chain management, the two are now commonly used standard protocol. Thus, the paper designs a UHF RFID reader that both support ISO18000-6 B and 6C dual-protocol. The design is based on the special chip AS3992 modules and LM3S8962 primarily control module, carrying IxC/OS- lI system, that can read or write from tags for a long distance through a se- ries of operations such as the UART initialization, AS3992 drive, anti-collision algorithm, CRC checking and registers of modifying etc. This system has the characteristics of simple development, low power, small volume and low cost.

关 键 词：超高频 RFID 射频电路 双协议 防碰撞 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]