计算机工程与应用2019，Vol.55Issue(9)：87-93,7.DOI:10.3778/j.issn.1002-8331.1802-0039
RFID旋转天线中的椭圆模型室内定位算法
Elliptical Model Indoor Positioning Algorithm for RFID Rotating Antenna 1 引言
摘要
Abstract
The traditional RFID indoor positioning system based on the distance measurement of RSSI needs to use multiple antennas simultaneously, which makes the cost of RFID positioning system expensive. However, the RFID rotating antenna positioning method using only one antenna needs to long-term search for a tag to measure the maximum signal strength, which causes that the system is unable to operate stably for a long period of time. In order to solve the problem, the system obtains the equal signal strength of different angles by rotating RFID antenna. Then the intersection points of two elliptical models are obtained by traversal methods. In this way the positioning function is achieved. At last the perfor-mance of the proposed algorithm is tested on the hardware device. The result indicates that the error of position is 0.754 m. Compared with the traditional RSSI positioning algorithm, the cost of proposed RFID indoor positioning system can be reduced about 36.19%. At the same time, the problem of heating easily of the reader is solved.关键词
射频识别/室内定位/旋转天线/RSSI测距/椭圆模型/三边定位算法Key words
Radio Frequency Identification(RFID)/ indoor localization/ rotable antenna/ Received Signal Strength Indi-cation(RSSI)distance measurement/ three edge location algorithm分类
信息技术与安全科学引用本文复制引用
何伟健,陆江城,朱耀磷,李学聪..RFID旋转天线中的椭圆模型室内定位算法[J].计算机工程与应用,2019,55(9):87-93,7.基金项目
2016年国家大学生创新创业训练项目(No.201611845057). （No.201611845057）
