YANG Xue-min, ZENG Yu, XIONG Dong. Design of the front-end interrogator of internet of things based on UHF RFID[J]. 2012, 31(5): 85-87. DOI: 10.13873/j.1000-97872012.05.028.
基于UHFRFID的物联网前端读写器设计
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。
Abstract
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.