基于nRF24L01的防拆卸有源电子标签设计  

Design of anti-demolition read-only active RFID tag based on nRF24L01

作　　者：严林祥[1] 张红雨[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都611731

出　　处：《电子技术应用》2013年第8期44-46,共3页Application of Electronic Technique

摘　　要：介绍了一种具有防拆卸功能的低功耗有源电子标签设计,对标签的硬件电路和软件进行了讨论。电子标签采用nRF24L01作为射频芯片,通过一个开关实现电子标签的防拆卸功能。为携带异常状态的数据包分配单独的数据通道,使得标签与物体分离时能够快速通知监测人员。在强行拆除标签时,读卡器采用记录标签异常状态的次数来区别对待非法人员和合法人员。最后,对只读型有源电子标签的防碰撞算法进行了讨论。该有源电子标签非常适合用于户外某些物品的实时监控或查询管理。This paper introduces a design of a read-only active RFID tag, which has low-power and anti-demolition features The hardware and software of the active RFID tag are discussed. The tag uses nRF24L01 as RF chip, and achieves anti-demolitior via a switch. In order to notify monitors once the tag and the object separated, a separate data pipe is assigned for carrying the abnormal state packets. When removing a tag, the reader records the number of abnormal state to treat illegal and legal personnel Finally, the read-only active tag anti-collision algorithm is discussed. The active RFID tag is well suited for real-time monitorin or query outdoor certain items.

关 键 词：有源电子标签 防拆卸 低功耗 防碰撞 NRF24L01 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]