基于UHFRFID的物联网前端读写器设计  

Design of the front-end interrogator of internet of things based on UHF RFID

作　　者：杨学敏[1] 曾煜[1] 熊东[1] 

机构地区：[1]重庆大学通信工程学院,重庆400030

出　　处：《传感器与微系统》2012年第5期85-87,共3页Transducer and Microsystem Technologies

基　　金：中央高校基本科研业务资金资助项目(CDJZR10160008;CDJRC11160002)

摘　　要：基于物联网前端感知系统中的一种热门技术——超高频射频识别(UHF RFID),提出了一种新的读写器系统设计方案。给出了UHF RFID系统的工作原理,分别从系统硬件和软件部分进行了详细阐述,分析了系统测试结果。重点描述了主控制器外围电路、UHF读写模块电路设计,以及系统的软件流程。测试结果证明:该设计可实现,支持EPC GEN2和ISO/IEC 18000—6A/6B协议,具有结构简单、体积小、功耗低的优点,并且读写距离能达到6 m,满足实际应用的需要。An interrogator system design scheme is proposed based on UHF radio frequency identification（UHF RFID）,which is a popular technology in the front-end apperceiving system of internet of things.Working principle of the UHF RFID system is given,and the hardware and software of the system is elaborated respectively.The system test results is analyzed.The main controller peripheral circuit,the design of UHF interrogating module circuit,and the software flow of the system are described.The results show that the design,which support the protocol of EPC GEN2 and ISO/IEC 18 000—6A /6B can be realized.The system has the advantages of simple structure,small size,low power consumption,and the working distance can reach 6m,which can meet the needs of practical application.

关 键 词：超高频射频识别 物联网 读写器 AS3992 电路 

分 类 号：TN710[电子电信—电路与系统]