基于OPENWRT开源路由器的智能网关系统设计与实现
发布时间：2019-05-30 05:51
【摘要】：近年来,随着科技的发展以及人民生活水平的提高,智能家居技术在大众的日常生活中得到了快速的普及与发展。越来越多的智能化家电设备也随之进入千千万万的家庭之中。为了减轻用户使用负担、提高家电管理的便捷度、搭建家庭网络与公共网络沟通的桥梁,家庭网关技术应运而生。家庭网关作为家居智能化的核心组件,其主要功能在于使得家庭用户和放置在家庭中的各种智能家电设备连接到互联网,或者使智能家电设备之间能够互相通信。然而,现有的家庭网关设备普遍具有成本高、标准不统一、网络处理慢等问题。此外,现有的家庭网关在网络流量管理、用户接入方面也存在很多不足之处。针对现有家庭网关设备使用过程中出现的诸多问题,本文使用OpenWRT开源路由器技术,结合众多家庭网络中常用传感器设备,组建了一个家庭网络硬件平台,并在此基础上研究了基于OpenWRT无线路由器的智能网关(OWIG)系统的设计与实现。本文首先阐述了家庭网关技术在智能家居解决方案中的应用现状,然后分别介绍了本文中用到的家庭网关技术、开源路由器技术以及LuCI WEB技术。接着,本文探讨了在OpenWRT路由器上搭建智能家庭网关的需求,并以此为基础设计了OWIG系统。该系统由以开源路由器为核心的硬件平台以及以LuCI为基础架构的软件平台两个部分组成。其中,硬件平台用于搭建智能网关所在网络环境;软件应用平台用于负责OWIG系统的数据处理以及业务逻辑处理。在实现环节,本文首先设计了OWIG系统的硬件平台,讨论了诸多传感器设备的连接与传输问题。然后设计了OWIG系统应用服务框架,并根据软件应用框架设计了数据预处理模块和业务逻辑模块。在数据预处理模块详细设计了WEB界面与OpenWRT系统之间的消息处理过程,重点讲述了Lua脚本与OpenWRT内部UCI接口交互的执行流程。在业务逻辑模块设计过程中,将业务需求划分成用户管理模块、设备管理模块、文件管理模块以及应用服务模块四个部分,然后分别针对各个业务逻辑模块进行了详细地实现。特别地,针对现有家庭网关流量控制不足的问题,本文在软件应用平台设计过程中,结合Linux NETFILTER/IPTABLES防火墙技术和TC流量管理技术,详细阐述并设计了家长控制功能以及访客网络技术的实现。最后,本文做了大量实验对系统功能和性能进行了测试。为了测试系统的性能,本文使用系统CPU使用率,单位时间网络数据传输速率以及系统请求并发能力作为性能指标,并分别设计了实验场景对其进行测试。特别地,本文还使用Apache Benchmark工具对软件平台的WEB服务器进行了压力测试。结果表明本文所设计的OWIG系统是符合设计要求的。
[Abstract]:In recent years, with the development of science and technology and the improvement of people's living standards, smart home technology has been rapidly popularized and developed in the daily life of the public. More and more intelligent household appliances have also entered tens of millions of families. In order to lighten the burden of users, improve the convenience of household appliances management, and build a bridge between home network and public network, home gateway technology emerges as the times require. As the core component of home intelligence, the main function of home gateway is to connect home users and all kinds of intelligent household appliances placed in the home to the Internet, or to make intelligent household appliances communicate with each other. However, the existing home gateway equipment has many problems, such as high cost, inconsistent standards, slow network processing and so on. In addition, there are many shortcomings in network traffic management and user access of existing home gateways. In view of many problems in the use of the existing home gateway equipment, this paper uses OpenWRT open source router technology, combined with many commonly used sensor devices in the home network, to set up a home network hardware platform. On this basis, the design and implementation of intelligent gateway (OWIG) system based on OpenWRT wireless router are studied. This paper first describes the application status of home gateway technology in smart home solution, and then introduces the home gateway technology, open source router technology and LuCI WEB technology used in this paper. Then, this paper discusses the requirement of building intelligent home gateway on OpenWRT router, and designs OWIG system on this basis. The system consists of two parts: the hardware platform with open source router as the core and the software platform based on LuCI. Among them, the hardware platform is used to build the network environment where the intelligent gateway is located, and the software application platform is used to be responsible for the data processing and business logic processing of OWIG system. In the part of implementation, the hardware platform of OWIG system is designed, and the connection and transmission of many sensor devices are discussed. Then the application service framework of OWIG system is designed, and the data preprocessing module and business logic module are designed according to the software application framework. In the data preprocessing module, the message processing process between WEB interface and OpenWRT system is designed in detail, and the execution flow of interaction between Lua script and UCI interface inside OpenWRT is described in detail. In the design process of business logic module, the business requirements are divided into four parts: user management module, equipment management module, file management module and application service module, and then each business logic module is implemented in detail. In particular, in order to solve the problem of insufficient traffic control of the existing home gateway, this paper combines Linux NETFILTER/IPTABLES firewall technology and TC traffic management technology in the design process of the software application platform. The function of parent control and the realization of visitor network technology are described and designed in detail. Finally, a large number of experiments have been done to test the function and performance of the system. In order to test the performance of the system, the CPU utilization rate, the network data transmission rate per unit time and the concurrency ability of the system request are used as the performance indexes, and the experimental scenarios are designed to test the performance of the system. In particular, this paper also uses Apache Benchmark tool to stress test the WEB server of the software platform. The results show that the OWIG system designed in this paper meets the design requirements.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.05
本文编号：2488582
[Abstract]:In recent years, with the development of science and technology and the improvement of people's living standards, smart home technology has been rapidly popularized and developed in the daily life of the public. More and more intelligent household appliances have also entered tens of millions of families. In order to lighten the burden of users, improve the convenience of household appliances management, and build a bridge between home network and public network, home gateway technology emerges as the times require. As the core component of home intelligence, the main function of home gateway is to connect home users and all kinds of intelligent household appliances placed in the home to the Internet, or to make intelligent household appliances communicate with each other. However, the existing home gateway equipment has many problems, such as high cost, inconsistent standards, slow network processing and so on. In addition, there are many shortcomings in network traffic management and user access of existing home gateways. In view of many problems in the use of the existing home gateway equipment, this paper uses OpenWRT open source router technology, combined with many commonly used sensor devices in the home network, to set up a home network hardware platform. On this basis, the design and implementation of intelligent gateway (OWIG) system based on OpenWRT wireless router are studied. This paper first describes the application status of home gateway technology in smart home solution, and then introduces the home gateway technology, open source router technology and LuCI WEB technology used in this paper. Then, this paper discusses the requirement of building intelligent home gateway on OpenWRT router, and designs OWIG system on this basis. The system consists of two parts: the hardware platform with open source router as the core and the software platform based on LuCI. Among them, the hardware platform is used to build the network environment where the intelligent gateway is located, and the software application platform is used to be responsible for the data processing and business logic processing of OWIG system. In the part of implementation, the hardware platform of OWIG system is designed, and the connection and transmission of many sensor devices are discussed. Then the application service framework of OWIG system is designed, and the data preprocessing module and business logic module are designed according to the software application framework. In the data preprocessing module, the message processing process between WEB interface and OpenWRT system is designed in detail, and the execution flow of interaction between Lua script and UCI interface inside OpenWRT is described in detail. In the design process of business logic module, the business requirements are divided into four parts: user management module, equipment management module, file management module and application service module, and then each business logic module is implemented in detail. In particular, in order to solve the problem of insufficient traffic control of the existing home gateway, this paper combines Linux NETFILTER/IPTABLES firewall technology and TC traffic management technology in the design process of the software application platform. The function of parent control and the realization of visitor network technology are described and designed in detail. Finally, a large number of experiments have been done to test the function and performance of the system. In order to test the performance of the system, the CPU utilization rate, the network data transmission rate per unit time and the concurrency ability of the system request are used as the performance indexes, and the experimental scenarios are designed to test the performance of the system. In particular, this paper also uses Apache Benchmark tool to stress test the WEB server of the software platform. The results show that the OWIG system designed in this paper meets the design requirements.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.05
【参考文献】
相关期刊论文 前1条
1 郭先会;曾浩;李致兴;;TR069协议在IPTV终端管理系统中的研究与应用[J];电视技术;2011年05期
，本文编号：2488582
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