| 仲元昌,刘春伟,丁漩,王旭.多天线UHF RFID标签阅读器的多标签识别优化算法[J].高技术通讯(中文),2012,22(7):669~674 |
| 多天线UHF RFID标签阅读器的多标签识别优化算法 |
| Optimization of multi tag identification for UHF RFID multi antenna tag readers |
| 修订日期：2011-05-10 |
| DOI： |
| 中文关键词: 射频识别(RFID)， 超高频(UHF)， 多标签， 多天线， 遗传算法， 可靠性 |
| 英文关键词: RFID, UHF, multiple tags, multi antenna, genetic algorithm, reliability analysis |
| 基金项目:863计划（2006AA04A123），科技部科学技术创新基金（10C26215113031）和重庆市科技攻关计划（CSTC.2010AC3110）资助项目 |
| 作者 | 单位 | | 仲元昌 | 重庆大学通信工程学院/通信与测控中心 | | 刘春伟 | 重庆大学通信工程学院/通信与测控中心 | | 丁漩 | 重庆大学机械工程学院 | | 王旭 | 重庆大学机械工程学院 |
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| 摘要点击次数: 3037 |
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| 中文摘要: |
| 针对现有的超高频（UHF）射频识别（RFID）标签阅读器使用单个天线，难以保证多标签识别可靠性的问题，提出了一种通过增加天线个数，以增强覆盖效果、减少识别盲区、增强多标签识别可靠性的RFID多天线识别模式，并利用遗传算法对识别过程中启用天线的个数进行优化，通过合理处理选择、交叉、变异遗传算子以提高RFID阅读器多标签识别的可靠性。实验结果表明：增加天线个数可以增强覆盖效果、减少识别盲区；基于遗传算法的识别优化算法具有良好的搜索性和收敛性，提高了系统识别的可靠性。该研究为复杂环境下应用超高频RFID技术提供了新思路。 |
| 英文摘要: |
| This paper pays attention to the problem that it is difficult for existing UHF RFID (radio frequency identification) tag readers with a single antenna to assure their reliability in multi tag identification, and proposes a RFID multi antenna identification mode, which increases the number of antennas to increase the recovery and reduce the blind zone during identification, and finally to improve the reliability of multi tag identification. This paper adopts the genetic algorithm (GA) to optimize the number of antennas during identification by using the operators of selection, crossover, and mutation for improving the reliability of multi tag identification of a RFID reader. The experimental results show that the proposed RFID multi antenna identification mode is effective in improving the recovery and reducing blind zone, and the identification optimizing algorithm based GA has the satisfied capability in searching and convergence, it can improve the reliability of system identification. This study provides a new idea for the application of the UHF RFID technology in complex environments. |
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