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基于RFID的室内智能导航系统

发表时间:2010-04-30  浏览量:1674  下载量:779
全部作者: 涂锦辉,孟崇,周楹君,申辉,苑晶
作者单位: 南开大学信息技术科学学院
摘 要: 室内定位与导航技术以其在公共服务、商业应用和安防等方面的良好应用前景而备受重视。设计并实现了用于大规模室内环境的移动终端定位与智能导航系统。该系统基于射频识别(radio frequency identification,RFID)技术和时差定位(time difference of arrival,TDOA)原理测量距离,并通过三点定位技术实现对手持移动终端的精确定位。在此基础上,引入A*搜索算法,以完成对手持终端设备准确、高效的导航。实验表明:该系统的测距精度平均可达3 cm,能满足室内定位的要求。
关 键 词: 无线通信技术;射频识别;室内定位;时差定位;A*搜索;导航
Title: RFID-based indoor intelligent navigation system
Author: TU Jinhui, MENG Chong, ZHOU Yingjun, SHEN Hui, YUAN Jing
Organization: College of Information Technology Science, Nankai University
Abstract: Accurate indoor localization and navigation techniques are important and novel emerging techniques for public service, commercial applications and security. This paper presents a mobile terminal localization and intelligent navigation system for the large-scale indoor environment. This system is based on the radio frequency identification (RFID) technology and the time difference of arrival (TDOA) between radiofrequency and ultrasonic signals to estimate distance, and employs the three-point localization technology to achieve accurate position estimation of the hand-held mobile terminals. Then A* search algorithm is introduced to realize accurate and efficient navigation. As the experiment proves, this system can provide the average 3 cm distance estimation precision, which is able to meet the requirements of indoor localization.
Key words: wireless communication technology; radio frequency identification; indoor localization; time difference of arrival principle; A* search algorithm; navigation
发表期数: 2010年4月第8期
引用格式: 涂锦辉,孟崇,周楹君,等. 基于RFID的室内智能导航系统[J]. 中国科技论文在线精品论文,2010,3(8):774-780.
 
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