物联网环境下RFID防碰撞及动态测试关键技术研究

摘要

Under complex Internet of Things (IOT) environment, dense tags, multiple reader-writers and external noise have great impacts on tag read rate and more importantly, they cause collision of radio frequency identification (RFID). Firstly, a comprehensive review of the overall architecture of IOT and its relationship with RFID were presented in this paper. And then common RFID anti-collision algorithms in recent years were ana-lyzed. Finally, the latest development in dynamic testing technology of RFID was discussed. A novel experimental platform was introduced for dynamic testing of RFID anti-collision performance. The experimental results indicate that the hardware and software functions of the platform were effective. Thus, based on the research work in this paper, the important research direction and more effective testing approaches were given for further improving performance of RFID system as well as dynamic anti-collision.%　　针对复杂物联网环境下，由于密集标签应用中的多标签、多读写器、各种外部噪声等对标签读取率的影响以及所引起的射频识别系统的碰撞问题，介绍了物联网的总体架构以及RFID与物联网的关系，分析了近年来几种常见的RFID防碰撞算法，探讨了RFID系统动态测试技术的最新进展，提出了一种新型RFID防碰撞动态测试实验平台的硬件和软件框架，并通过仿真验证了平台的部分功能，从而为提高RFID系统动态防碰撞提供了有效的测试手段。