与传统条形码识别技术相比,射频识别(Radio Frequency Identification,RFID)具有扫描速度快、体积小、易封装、可抵抗污染、可重复使用、穿透性强、存储容量大、安全性高等优势,其应用将给零售、物流等产业带来革命性变化。本文介绍了EP...与传统条形码识别技术相比,射频识别(Radio Frequency Identification,RFID)具有扫描速度快、体积小、易封装、可抵抗污染、可重复使用、穿透性强、存储容量大、安全性高等优势,其应用将给零售、物流等产业带来革命性变化。本文介绍了EPCglobal组织的RFID体系框架和标准化现状,阐明了电子产品代码(Electronic Product Code,EPC)网络的组成,分析了EPC编码标准、EPC标签、读写器、Savant系统、对象名解析系统(Object Numbering System,ONS)、物理标识语言的基本结构和功能原理,最后给出了EPC网络的工作流程。展开更多
A robust digital receiver based on a matched filter （MF） is proposed for the radio frequency identification （RFID） reader system to enhance the reliability of signal processing in the electronic product code （EPC...A robust digital receiver based on a matched filter （MF） is proposed for the radio frequency identification （RFID） reader system to enhance the reliability of signal processing in the electronic product code （EPC） sensor network （ESN）. The performance of the proposed receiver is investigated by examining the anti-collision algorithm in the EPC global Class1 Generation2 protocol. The validity and usefulness are demonstrated by both computer simulations and experiments. Based on the verification results, comparing with the conventional zero crossing detector （ZCD） based receiver, the proposed receiver is very robust against strong amplitude distortions and considerable frequency deviations happening on the backscattered signal from a passive tag.展开更多
基金supported by the Korea Evaluation Institute of Industrial Technology(KEIT),under the R&D Support Program of Ministry of Knowledge Economy,Korea
文摘A robust digital receiver based on a matched filter （MF） is proposed for the radio frequency identification （RFID） reader system to enhance the reliability of signal processing in the electronic product code （EPC） sensor network （ESN）. The performance of the proposed receiver is investigated by examining the anti-collision algorithm in the EPC global Class1 Generation2 protocol. The validity and usefulness are demonstrated by both computer simulations and experiments. Based on the verification results, comparing with the conventional zero crossing detector （ZCD） based receiver, the proposed receiver is very robust against strong amplitude distortions and considerable frequency deviations happening on the backscattered signal from a passive tag.
