不同距离、偏移和旋转角度对RFID读取率的影响  

Effect of Different Distance, Offset and Rotation Angle on Read Rate of RFID

作　　者：王亓剑 雷龙海 赵馀 王卫华[2] 杨启良[2] 

机构地区：[1]广西科技大学鹿山学院,广西柳州 [2]昆明理工大学现代农业工程学院,云南昆明 [3]毕节市水土保持办公室,贵州毕节 [4]湖南省水利水电科学研究院,湖南长沙

出　　处：《农业科学》2017年第1期1-10,共10页Hans Journal of Agricultural Sciences

基　　金：国家自然科学基金(项目编号:51379004,51009073,51109102);云南省应用基础研究面上项目(项目编号:2013FB024)。

摘　　要：为研究不同距离、偏移和旋转角度对RFID读取率的影响,本文设定标签读取距离(M)5个处理(1 m、2 m、3 m、4 m、5 m)、偏移角度(A) 5个处理(0?、15?、30?、45?、60?)、旋转角度(R)4个处理(0?、90?、180?、270?),针对空载和不同盆栽植物分别进行试验。结果表明:空载条件时标签读取距离、偏移角度的有效范围:当距离为1 m时,偏移角度的有效范围为0?~60?,读取率达到98.0%以上;距离为2~5 m时,偏移角度的有效范围为0?~45?,读取率达到97.4%以上。当盆栽植物为一品红、小桐子时,标签读取距离、偏移角度和旋转角度的有效范围:距离最远5 m;当距离为1 m时,偏移角度范围为0?~60?;距离为2 m^3 m时,偏移角度范围为0?~45?;距离为4 m时,偏移角度范围为0?~15?;距离为5 m时,偏移角度范围为0?;当距离为0~3 m时,其旋转角度的有效范围均为0?~270?,在此读取范围内其RFID的读取率均达到93.06%以上;当距离为4 m,偏移角度为0?~15?时,其旋转角度的有效范围为0?~90?,其RFID的读取率均达到82.7%。测定条件相同时,小桐子的读取率高于一品红的读取率。To study the effects of different distances, offset and rotation angle on the RFID read rates, the paper set the tag reading distance (M) 5 treatments (1 m, 2 m, 3 m, 4 m, 5 m), the offset angle (A) 5 treatments (0?, 15?, 30?, 45?, 60?) and the rotation angle (R) 4 treatments (0?, 90?, 180?, 270?). No-load plants and different potted plants were studied. The result show the effective tag reading range and the offset angle in the no-load condition: when the distance is 1 m, the valid range of the offset angle is 0? - 60? and the reading rate is more than 98.0%;when the distance is 2 to 5 m, the valid range of the offset angle is 0? - 45? and the reading rate is more than 97.4%. When the potted plants are poinsettias and Jatropha, the effective range of tag read distance, the offset angle and the rotation angle is: The farthest distance is 5 m;when the distance is 1 m, the offset angle range is 0? - 60?;when the distance is 2 m - 3 m, the offset angle range is 0? - 45?;when the distance is 4 m, the offset angle range is 0? - 15?;when the distance is 5 m, the offset angle range is 0?;when the distance is 0 - 3 m, the effective range of its rotational angle is 0? - 270?. In this reading range, RFID read rate reaches more than 93.06%. When the distance is 4 m and the offset angle is 0? - 15?, the valid range of its rotation angle is 0? - 90? and RFID reading rate reaches 82.7%. When measurement condition is same, Jatropha reading rate is higher than poinsettia.

关 键 词：RFID 读取率 距离 偏移角度 旋转角度 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]