基于ZigBee的无线抄表系统网关的设计与实现

摘要

In order to accomplish the merging between ZigBee wireless network and Ethernet in wireless meter reading system, a ZigBee wireless gateway based on AT91SAM9261 ARM microprocessor and CC2430 wireless transceiver is proposed by analyzing the requirement of wireless gateway. The hardware configuration and principle of the system are introduced in detail. The constructing of ZigBee protocol stack and design of Ethernet communication software based on μC/OS-Ⅱ embedded operating system are discussed. The application in practice show that the gateway had a good stability and reliability to meet the demand for transparent data transmission in wireless meter reading system.%为了实现ZigBee无线抄表系统中ZigBee无线网络与以太网两个异构网络的融合,通过对无线网关的需求分析,提出了一种基于AT91SAM9261 ARM微处理器和CC2430无线收发芯片的ZigBee无线网关设计方案.详细介绍了关键模块的硬件组成及工作原理,着重讨论了ZigBee协议栈的构建和基于μC/OS-Ⅱ嵌入式操作系统的以太网通信软件的设计方法.实际应用结果表明,该方案稳定、可靠,满足无线抄表系统对数据透明传输的要求.