物联网中RFID多标签识别技术研究综述

Overview of RFID multiple tags identification in Internet of Things

结合国家发展战略和RFID应用发展,提出了大规模移动标签的高效可靠识别需求.指出在该需求条件下RFID标签识别技术所存在的标签漏读、标签重读和标签错读问题,同时分析了RFID技术研究所面临的制约因素.然后结合大规模移动标签识别高效可靠识别需求,对标签防碰撞协议和阅读器防碰撞协议这两种RFID标签识别技术的国内外研究现状及发展动态进行分析,将ALOHA时隙分配机制分为随机方式和预约方式两种,并简要介绍我们项目组在预约方式下研究成果,特别指出TREE不适合大规模移动标签高效可靠识别需求.最后,提出大规模标签识别进一步的研究方向.

This paper proposes the requirement of efficient and reliable identification of large-scale mobile tags considering the national strategy and the RFID application development. Considering the identification requirement, the paper presents the fact that the RFID tag identification technology faces tag identification miss, re-identification and wrong identification problems, and analyzes the factors restricting the research of RFID technology. Based on the requirement of efficient and reliable identification of large-scale mobile tags, the analyzes the domestic and foreign research present situations and development of anti-collision protocols and reader anti-collision protocols on RFID tag identification technology. The ALOHA slot allocation mechanism is divided into random and appointment, and our research achievements are introduced about the appointment mechanism. Note that TREE is not suitable for identification of large-scale mobile tag. Finally, the research direction on identification of large- scale mobile tags is proposed.