实验室仪器管理中RFID多标签识别防碰撞算法研究

Research on anti-collision algorithm of RFID multi-label identification in laboratory instrument management

随着我国高等教育的蓬勃发展和新工科建设的进一步推进,高等院校实验室仪器与相关设备数量大幅增加,射频识别技术被广泛应用于实验室仪器管理系统中,多个电子标签的应答碰撞不可避免。针对多个电子标签识别过程中的数据碰撞问题,对纯ALOHA算法及其改进算法在实验室典型应用环境下进行仿真分析和验证。实验与仿真结果表明,帧时隙ALOHA算法相较传统的防撞算法,提高了数据吞吐率,有效地降低了通信数据的碰撞率,可应用于高校实验室的仪器管理。

With the rapid development of China’s higher education and the further development of new engineering construction,the number of laboratory instruments and related equipment in colleges and universities has increased significantly,radio frequency identification technology has been widely used in laboratory instrument management system,multiple electronic tag response collision is inevitable.Aiming at the data collision problem in the identification process of multiple electronic tags,pure ALOHA algorithm and its improved algorithm have been simulated,analyzed and verified in typical laboratory application environment.Experimental results show that,compared with the traditional probabilistic collision avoidance algorithm,the frame time slot ALOHA algorithm greatly improves the data throughput rate and effectively reduces the collision rate of communication data,which can be applied to the instrument management of university laboratories.