射频识别防碰撞算法研究

Research on Radio Frequency Identification Anti-collision Algorithm

射频识别技术具有识别距离远、识别速度快、使用成本低等优点,目前被广泛应用于物联网相关应用领域之中。从RFID的系统结构和工作原理出发,详细阐述了一种新的基于时隙Aloha防碰撞算法和扩频通信原理的防碰撞算法——扩频Aloha算法,该算法在一定程度上提高了标签的识别效率和识别稳定性。

Radio frequency identification（RFID） technology has the advantages of long distance recognition,fast recognition speed,low cost,which is widely used in the field of Internet of things. Starting from the system structure and working principle of RFID,this paper expounds in detail a new anti-collision algorithm based on time slot Aloha anti-collision algorithm and spread spectrum communication principle—spread spectrum Aloha algorithm,the algorithm improves the recognition efficiency and recognition stability of the label to a certain extent.