一种基于RFID的区域实时定位系统布局  

The Arrangement of a Regional Real Time Location System Based on RFID

作　　者：宋伟宁[1] 张彦仲[1] 邵定蓉[1] 李署坚[1] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100191

出　　处：《北京工业大学学报》2011年第9期1304-1309,共6页Journal of Beijing University of Technology

基　　金：广东省重大科技专项(2008A090300001)

摘　　要：建立了基于射频识别(RFID)技术定位系统的数学模型;根据几何精度因子(GDOP),讨论了定位精度与读写器个数及布局之间的关系,给出了实时定位系统(RTLS)的读写器布局策略.仿真结果表明,系统的定位精度随着读写器个数的增加而提高;当测距误差为1.5 m、读写器个数为5个时,应用本文的布局策略,区域内标签定位误差的数学期望可以达到1.726 2 m,满足系统实际需要.This paper presents the model of positioning system based on ratio frequency identification （ RFID）. Depending on geometry dilution of precision （GDOP） , relationship between positioning precision and the number and arrangement of readers is discussed; arrangement strategy in real time location system （RTLS） is derived. The simulation results show that precision of location is improved with the increasing number of readers. When ranging error is 1.5 meters and the number of readers is 5, mathematical expectation of location error is 1. 726 2 meters, which satisfies the system requirement.

关 键 词：定位 因子 射频识别 

分 类 号：TN967.1[电子电信—信号与信息处理]