基于RFID技术的文献位置大数据感知方法研究  

Big Data Sensing Method of Document Location Based on RFID Technology

作　　者：张永彩 王雪松 凌征强[1] Zhang Yongcai;Wang Xuesong;Ling Zhenqiang

机构地区：[1]广州番禺职业技术学院图书馆,广东广州511483 [2]广州市番禺区图书馆,广东广州511483

出　　处：《新世纪图书馆》2021年第10期56-61,共6页New Century Library

基　　金：广东省教育厅2020年度普通高校认定类科研项目“基于学习中心的高职院校图书馆空间服务的实践与探索”(项目编号:2020WTSCX163);广州番禺职业技术学院校级科研项目“高职院校图书馆专业馆员服务效益研究学术创新团队”(项目编号:2018X002)研究成果。

摘　　要：论文根据RFID技术工作流程,采用基于频域相位差的感知方法,应用标签阅读器发射不同频率载波信号,信号经过一定距离后被标签接收并反射,阅读器获取反射信号,基于信号相位差确定二维空间中文献目标与标签阅读器间距离。基于二维空间距离感知结果,构建三维空间中标签与阅读器间的距离方程组,利用梯度下降法迭代求解方程组,实现文献标签三维坐标位置数据感知。研究结果显示,该方法的位置感知误差控制在2cm以内,感知过程收敛速度较快,且具有较强抗噪性。According to the working process of RFID technology,the sensing method based on frequency domain phase difference is adopted.The tag reader transmits carrier signals with different frequencies.After a certain distance,the signal is received and reflected by the tag.The reader obtains the reflected signal,and determines the distance between the object and the tag reader in two-dimensional space based on the signal phase difference.Based on the results of two-dimensional spatial distance perception,the distance equations between tags and readers in three-dimensional space are constructed,and the gradient descent method is used to solve the equations iteratively,so as to realize the three-dimensional coordinate position data perception of literature labels.The results show that the position sensing error of this method is controlled within 2cm,the convergence speed of the sensing process is fast,and it has strong noise resistance.

关 键 词：RFID 图书馆 文献位置 

分 类 号：G250.78[文化科学—图书馆学] TP391[自动化与计算机技术—计算机应用技术]