基于RFID的贵重设备移动监测方法

RFID-based movement monitoring method of expensive equipment

针对设备动态管理,将RFID技术应用到设备管理当中,将嵌入式Linux技术、RFID技术及TCP/IP网络通信技术结合起来,实现在库设备的移动监测。基于读卡器对一定距离外的电子标签在不同发射功率下的读取能力,利用3种预设功率对设备所附电子标签进行轮询读取、通过计算滑动窗口内预定功率下成功读到标签的概率及设定相应概率阈值以实现贵重设备的移动监测。实验结果表明:所设计的设备移动监测方法具有较高的实时性和可靠性,能够在3s内监测出设备的移动并发出报警。

According to the requirement of equipment dynamic management, this paper applies RFID technology to achieve the management of equipments, combining the embedded Linux technology, RFID technology and TCP/IP network communication technology to realize the movement monitoring of the equipments. Based on the reading ability of RFID in different transmit power to read electronic card which is at certin distance ,using three preset power to read electronic tag attached to equipment in the polling way, through calculating the successful rate of tag reading in the sliding window in a predetermined power and to realize movement monitoring of expensive equipment through setting a corresponding probability threshold. The experimental results show that movement monitoring method of the equipment has higher timeliness and reliability and can detect the movement of the equipments and alarm within 3 seconds.