基于嵌入式系统的物联网网关的设计

Design of IOT Gateway Based on Embedded System

物联网网关作为连接传感网与传统通信网络的纽带,在即将到来的物联网时代将发挥重要的作用。文章设计了一种基于嵌入式系统的物联网网关,针对ZigBee无线传感网通信距离短、通信速率低的困扰,将ZigBee通信协议与以太网、GPRS等通信协议进行转换,实现对ZigBee节点的远程监控。系统以ARM9系列的S3C2440为主控芯片,采用模块化的设计思路,围绕主控制器搭建了相应的外围功能模块。软件方面,移植了Linux嵌入式操作系统,在网关节点上搭建web服务器,编写了相应的应用程序来实现物联网网关的功能。经测试,该网关功能稳定可靠,实现了无线传感网与传统通信网络之间的数据通信。

IOT gateway is the link that connect sensor network with traditional communication network.The gateway will play an important role in the coming iot era. This paper design a iot gateway based on embedded system, because of the Zig Bee wireless sensor network communication distance is short, the rate is low, converting the Zig Bee communication protocol into Ethernet, GPRS communication protocol, realizing remote monitoring of Zig Bee nodes.This system adopts the module design thinking based on ARM9 series of S3C2440 chip control system, The peripheral function module is seted up around zhe main controller.On the software,transplanting the Linux embedded operating systems, setting up web server in the gateway node, programming the corresponding application to realize the iot gateway function. After testing, the gateway function is stable and reliable, realizing the data communication between the wireless sensor network and the traditional communication network.