基于RFID的医疗设备远程管理系统设计

Design of Remote Management System for Medical Equipment Based on RFID

为提高医院内设备定位精度,设计基于RFID的医疗设备远程管理系统。通过阅读器、电子标签和处理器组成RFID节点,引入AS3992芯片作为核心芯片,实现数据处理和编码,执行远程指令。采用自由空间传播模型计算路径损耗产生值,通过三角定位数学方法计算待定标签位置,采用RFID定位方法确定标签的最近邻居,实现医疗设备的远程定位。实验结果表明,在没有障碍物的情况下,所提系统设备定位误差少于1 m,在有障碍物的情况下,定位误差在2 m左右,证明所提出系统定位准确性较高,满足系统的设计需求。

In order to improve the positioning accuracy of hospital equipment,a remote management system of medical equipment based on RFID is designed.RFID node is composed of reader,electronic tag and processor,and AS3992 chip is introduced as the core chip to realize data processing and coding and execute remote instructions.The free space propagation model is used to calculate the path loss value,the triangle positioning mathematical method is used to calculate the position of the tag to be determined,and the RFID positioning method is used to determine the nearest neighbor of the tag,so as to realize the remote positioning of medical equipment.The experimental results show that the positioning error of the proposed system equipment is less than 1m in the absence of obstacles,and about 2m in the presence of obstacles,which proves that the positioning accuracy of the proposed system is high and meets the design requirements of the system.