摘要
为了降低RFID系统标签的冲突几率,优化RFID系统的效率,设计并实现了一个基于XScale处理器的嵌入式无线频率识别设备(radio frequency identification device)的读写器系统。该系统的RFID阅读器封装了底层的硬件驱动,功能模块扩展方便,实现了对电子标签的识别功能。该系统优化了基于动态帧时隙ALOHA防冲突算法,有效地避免了电子标签数据冲突,降低了RFID系统中数据碰撞的概率,提高了电子标签系统的识别效率和稳定性。实验数据表明了基于动态帧时隙ALOHA防冲突算法的有效性。
To reduce the collision probability of tags in the RFID system and optimize the efficiency of RFID systems, an embedded RFID （radio frequency identification device） reader system based on XScale is proposed. The RFID reader can identify electronic tag by hardware drivers. In order to avoid data collision of electronic tag, the dynamic slot ALOHA anti-collision algorithm is adopted in this system to reduce the collisions probability and improve the identification efficiency and stability. The experiment data verify the correctness of design and the validity of the algorithm.
出处
《计算机工程与设计》
CSCD
北大核心
2010年第2期321-323,340,共4页
Computer Engineering and Design
基金
国家自然科学基金项目(60842004)
