文档介绍：摘要
物联网是在互联网概念的基础上提出的,积极发展物联网技术,尽快扩展其应用领域,尽快使其投入到生产、生活中去,将具有重要意义。而物联网网关可以实现感知网络与通信网络以及不同类型感知网络之间的协议转换,既可以实现广域互联,也可以实现局域互联。
物联网嵌入式网关的研究及组网实现,是在构建整个物联网体系结构中至关重要的一步。网关是建立在网络层之上的协议转换器,而嵌入式系统具有专用性强、实时性好、可靠性高、功耗少、体积小和低成本的特点,因此用嵌入式网关极大增加了应用的灵活性并降低了成本。通过网关把ZigBee网络同因特网连接起来,在各个角落都可以对某个ZigBee网络中的设备进行监测和控制,大大缩小了物理世界的时空距离。
本文首先提出了一种基于ARM微处理器的嵌入式网关总体设计方案,设计出的网关具有功耗底、体积小、设计简单又可以满足小数据量信息传输的特点。然后以奥尔斯物联网创新实验系统IOV-T-2530为平台,模拟了嵌入式网关多点数据采集并完成了ZigBee网络与互联网的通信,从而实现了嵌入式网关在物联网中的应用。
关键词:物联网;嵌入式系统;ZigBee;网关;
ABSTRACT
The of things is based on the concept of , Actively develop of Things technology, expand its application areas as soon as possible, put it into production and life as soon as possible, will be of great signifiance. While the Gatway can bring about protocol conversion between the work, works and different types of work, both can achieve wide-area access, local access can also be achieved.
The research and application of Embedded Gateway is a crucial step to build the of Things architecture. Gateway is protocol converter built on top work layer,while Embedded system has specific use is strong, good real-time performance, high reliability, low power consumption, small size and low cost, thus Embedded Gateway greatly increased the use of application flexibility and reduced the cost. Through a Gateway to connect work with the , in every corner can monitoring and control the equipment in work, greatly reducing the time and space between the physical world.
This paper first suggests a overall design of embedded Gateway based on the ARM microprocessor, the Gateway has the advantages of low power consumption, small size, simple design and a small amount of data to meet the characteristics of information transmission. then use OURS IOV-T-2530 as a platform to simulate the embedded Gateway multi-point data acquisition, pleted munication between work and , plishing the application of embedded Gateway in the of Things.
Keywords: Intemet of things; Embedded systems; ZigBee