摘要
用于室内定位的技术主要包括红外传播技术、802.11 WLAN技术、无线传感器网络(WSNs)、超声波定位。而射频识别(RFID)技术依赖其合理的系统造价、良好的定位精确度、较强的抗干扰能力、无接触通信以及RFID射频标签的部署、携带便捷等诸多优点,正逐渐应用于室内追踪定位中。本文从用于室内定位的RFID标签的角度出发,将当前主要的RFID室内定位技术分为无源、有源和半无源RFID定位3类,并对每一类中涉及到的主要定位算法的当前发展状况及其优缺点做了详细分析。
The technologies used in the indoor localization mainly contain infrared propagation technique, IEEE 802.11 Wireless LAN, Wireless Sensor Networks(WSNs), and ultrasonic localization. Instead, Radio Frequency Identification(RFID) technique, with its numerous advantages of reasonable system cost, excellent location accuracy, strong anti-interference, contactless communications, convenient deployment and carry, has been widely used in indoor localization. From the point of RFID tags used in the indoor localization, the primary RFID-based indoor localization techniques are classified into three categories, namely, passive localization, active localization, and semi-passive localization. The analysis about the state of the art of the primary RFID-based localization algorithms is presented in detail, as well as the advantages and disadvantages of each technique.
出处
《太赫兹科学与电子信息学报》
2014年第2期195-201,共7页
Journal of Terahertz Science and Electronic Information Technology
基金
国家高技术研究发展计划(863计划)基金资助项目(2011AA100701)
关键词
室内定位系统
射频识别标签
射频识别定位
2-D定位
indoor localization
Radio Frequency Identification tag
Radio Frequency Identification localization
2-D localization
