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    摘要：物联网（Internet of Things）定义如下：LoT（Internet of Things）是信息社会的全球基础设施，能够基于现有的和/或演讲的互操作信息和通信技术将（物理的和虚拟的）物体相互连接起来以提供高级的服务。利用标识、数据采集、处理和通信能力，lot充分使用物体为各种应用提供服务，同时能够保护必要的隐私。38128
    本文首先介绍了智能网关设计的模块构架并对软硬件的选型和功能实现作了详细介绍，主要运用到的硬件设备有W5500芯片、CC2530芯片、51单片机等，其中51单片机是调试硬件；操作系统为OSAL，运用到Zigbee-Stack协议。
    毕业论文关键词：物联网；ZigBee；网关；CC2530；W5500
    Study on the design of intelligent gateway of the Internet of things
    ABSTRACT：Internet of Things are defined as follows:
    Internet of Things:In a broad perspective,the IoT can be perceived as a vision with technological and societal implications.From the perspective of technical standardization,IoT can be viewed as a global infrastructure for the information society,enabling and advanced services by interconnecting(physical and virtual)things based on,existing and evolving,interoperable information and communication technologies.Though the exploitation of identification,data capture,processing and communication capabilities,the IoT makes full use of things to offer services to all kinds of applications,whilst maintaining the required privacy.
    This article first introduces lightweight protocols and embedded operating system，Z-Stack，the establishment of a standardized，open network server architecture，its architectural style is based on the most basic of network protocol has able to send short messages，radio-- Subscribe to the mechanism and the authentication mechanism and the protection of data security and other functions，is also a lightweight，scalable and good，open—ended．Then the test platform, successfully transplanted to W5500 within the protocol. Again, for wirelesssensor CC2530 and connectivity,and with the Internet connectivity was proposed design idea and made a test lab．Finally,in the above experiment is proposed based on test platform based on the external hardware circuit design ideas and hardware circuit design．
    Keywords: Internet of things; ZigBee ; Gateway;CC2530;W5500 
    目录
    1.绪论
      1.1课题研究背景1  1.2国内外研究现状1
        1.2.1国外物联网发展现状1
        1.2.2国内物联网发展状况2
      1.3本课题设计思路及方法3
    2.物联网相关理论基础4
      2.1 ZigBee技术4
      2.2 基于ZigBee技术的无线传感器网络5
    3.嵌入式网关总体设计7
      3.1  网关设计的基本要求7
      3.2  网关功能模块的组成7
      3.3  嵌入式网关的硬件设计8
        3.3.1 以太网模块的芯片选择8
        3.3.2 物联网网关主控模块的芯片选择11
      3.4  嵌入式网关的软件设计    11
        3.4.1 TI-Stack协议栈12
      3.5调试工具的选择13
    4.连通性测试15
      4.1物联网与51单片机的连通性测试15
      4.2 51单片机和W5500的连通性测试15
      4.3 51单片机和PC的连通性测试16
      4.4 移植后PC和CC2530的连通性测试17
      4.5 各个软件模块功能的实现18
        4.5.1网关向物联网节点发送信息18
        4.5.2网关接收物联网节点信息18
        4.5.3网关接收以太网信息18
        4.5.4网关向以太网发送信息 19
        4.5.5以太网与物联网格式互换19
      4.6联合调试及问题修正29
    5.功能测试和应用实例20
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