基于嵌入式的智能家居网关系统设计

发布时间：2018-05-11 11:04

本文选题：物联网 + 智能家居　；参考：《上海工程技术大学》2016年硕士论文

【摘要】：智能家居是物联网在家居方面的应用与延伸,是未来家居生活的主要发展方向,也是物联网应用研究的热点领域之一。智能家居网关在智能家居系统中发挥极其重要的作用,其主要功能是完成家庭内部网络的组建,以及与外部网络之间的数据通信和协议转换。智能家居网关可以实现对家庭设备智能化、网络化的控制和管理,是智能家居系统的核心组成部分。本文对智能家居网关的发展历程和发展趋势做了细致的分析和介绍。针对当前智能家居网关在专用性、个性化和成本等方面存在的一些缺点,结合嵌入式、互联网、WIFI、Zig Bee、传感器等技术,提出了一种基于物联网架构的智能家居网关解决方案。本文的研究内容主要有以下几点:(1)基于物联网体系架构,研究设计了由感知控制层、网络通信层和应用服务层组成的三层体系架构的智能家居系统。重点分析了智能家居网关在智能家居系统中的功能和作用,以嵌入式处理器模块为基础,结合以太网接口模块、Wi Fi通信模块、Zig Bee通信模块等,设计了智能家居网关的硬件系统。(2)在OpenWrt操作系统的基础上,设计了智能家居网关的软件系统。通过模块化的方法设计了本地服务器、远程通信接口等应用程序。实现了通过客户端设备对家居设备远程或近程的控制和管理,以及家居环境信息数据的感知和采集。研究设计了基于NTRU算法的客户端和智能家居网关之间的认证协议,增强了系统的安全性。(3)研究分析了智能家居内网的组成及特点,以ZigBee为基础设计了星形结构的智能家居内网。在Z-Stack 2007的基础上,设计了Zig Bee网络管理和设备信息获取程序,实现了智能家居网关对Zig Bee终端设备的管理、控制和信息采集。并通过Zig Bee网络和Wi Fi网络的结合,充分利用Zig Bee通信在组网和功耗方面的优势以及Wi Fi通信在稳定性、传输速率方面的优势,组建了智能家居内网系统。(4)研究设计了智能家居网关个性化设置方案。采用“角色机制”,将用户分为家长级、子女级和访客级3个级别。通过识别用户的身份信息,智能家居网关为不同用户提供不同的功能服务。最后,通过设计智能家居系统验证平台、服务器和手机客户端,对系统进行验证分析。测试结果表明,该智能家居网关方案能够应用于大多家居环境,可以实现对家居环境的感知、采集以及对家居设备的控制,实现了家居智能化、生活便捷化。该方案具有功耗低、稳定性好、成本低、体积小、功能完善等优点。
[Abstract]:The smart home is the application and extension of the Internet of things in the home. It is the main development direction of the future home life. It is also one of the hotspots in the research of the application of the Internet of things. The smart home gateway plays an extremely important role in the smart home system. Its main function is to complete the formation of the internal network of the home court and to be between the external network and the external network. The smart home gateway can realize intelligent home equipment, control and manage the network. It is the core component of the intelligent home system. This paper makes a detailed analysis and introduction to the development and development trend of the smart home gateway. Some shortcomings in the cost and other aspects, combined with embedded, Internet, WIFI, Zig Bee, sensor and other technologies, proposed an intelligent home gateway solution based on the Internet of things architecture. The main contents of this paper are as follows: (1) based on the architecture of the Internet of things, the research and design of the awareness control layer, network communication layer and should be designed. The intelligent home system of three layer architecture composed of service layer is used to analyze the function and function of the smart home gateway in the intelligent home system. Based on the embedded processor module, the Ethernet interface module, the Wi Fi communication module, the Zig Bee communication module and so on, the hardware system of the intelligent home gateway is designed. (2) OpenWrt On the basis of operating system, the software system of smart home gateway is designed. Local server and remote communication interface are designed by modular method. The remote or close range control and management of home equipment through client device, and the perception and collection of home environment information data are realized. The authentication protocol between the client of the NTRU algorithm and the smart home gateway enhances the security of the system. (3) the composition and characteristics of the intelligent home network are studied and analyzed. The intelligent home network of star structure is designed on the basis of ZigBee. On the basis of Z-Stack 2007, a program of Zig Bee network management and equipment information acquisition is set up. In this paper, the management, control and information collection of Zig Bee terminal devices are presented. Through the combination of Zig Bee network and Wi Fi network, the advantages of Zig Bee communication in networking and power consumption as well as the advantages of Wi Fi communication in stability and transmission rate are fully utilized. The intelligent home network system is formed. (4) research and design the intelligence of intelligent home network. Home gateway personalized setup scheme, using "role mechanism", divides users into 3 levels of parents, children and visitor levels. By identifying user identity information, intelligent home gateway provides different functional services for different users. Finally, the design of intelligent home system verification platform, server and mobile client, to the system The test results show that the smart home gateway scheme can be used in most home environment, can realize the perception of home environment, collection and control of home equipment, realize the home intelligence and convenience of life. The scheme has the advantages of low power consumption, good stability, low cost, small volume, and perfect function.

【学位授予单位】：上海工程技术大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU855;TP391.44;TN929.5

【相似文献】