底层读写器协议浅析

Analysis on low level reader protocol

RFID技术在近年来得到了快速的发展。但是,RFID读写器与客户端之间的通信协议并没有得到统一,它们之间的连接需要适配读写器厂商私有的接口,不利于RFID应用系统的快速构建。因此,RFID标准化组织EPCglobal在2007年推出了底层读写器协议LLRP(Low Level Reader Protocol),它为读写器和其控制器提供了标准的网络接口,极大地提高了RFID应用系统的构建效率。借助于开源的RFID中间件平台Fosstrak对LLRP协议及其实现进行分析对比,会使开发者对LLRP协议有更深入的理解,为实现EPCglobal系统打下了坚实的基础。

RFID technology in recent years has made great strides. However, the communication protocol between RFID reader and the client has not been uniform, the connection between them needs to fit reader manufacturers proprietary interfaces, which are not conducive to build RFID applications quickly. Therefore, in 2007, EPCglobal an RFID standardization organization announced ratification of the low Level Reader Protocol （LLRP）standard, a specification for the network interface between the reader and its controller, which greatly improves the efficiency to build RFID applications. By means of Fosstrak, an open source RFID middleware platform to analyze the LLRP, developers will have a deeper understanding of it, which lays a solid foundation for the realization of EPCglobal system.