【作者】 程媛；

【导师】 魏丰；

【作者基本信息】 华中科技大学 ， 检测技术与自动化装置， 2005， 硕士

【摘要】 随着全球信息化时代的到来,家电已不再满足于高质量的电器设备,而是逐步融入到信息社会中来。适应当前家电网络化的趋势,本文提出了一种实用化的家电上网方案——基于CAN(Controller Area Network,控制器局部网)总线的网络家电测控系统。本系统将家庭内部所有的电气设备通过家庭内部的无极性总线网络连成一体,并接入Internet,具有广阔的应用前景。本文通过多种家庭网络组网方案的比较,确定采用CAN 总线组网,并对CAN总线的特点、主要技术指标及可靠性进行了全面的论述,给出了完整的CAN 总线家庭网络的组网方案。通过对当前无极性网络的研究,提出了CAN 总线网络无极性化的设计方案,并在CAN 网络的组网中成功应用,很大程度上提高了系统的实用性。适应家庭网络的需要,本文提出了采用可以常年运转的嵌入式以太网网关作为家庭控制中心的思路,并给出了完整的嵌入式以太网网关的设计方案。本系统选用Rabbit2000 高档单片机作为嵌入式以太网网关的微处理器,一方面实现CAN 总线网络和Internet 的连接; 另一方面建立嵌入式Web 服务站点,实现了网络家电的远程控制。本课题利用学校良好的网络资源和网络环境作了大量模拟实验,建立了基于CAN 总线的网络家电测控系统的基本框架。更多还原

【Abstract】 With the coming of the global information age, home appliances have not only acted as the high-quality electrical apparatus, but also incorporated to the information-intensive society progressively. Adapting to the networking trend of the electrical home appliances at present, the CAN (Controller Area Network) bus-based network appliances control system has been proposed in this thesis. In this control system, all the electrical apparatus in the house have been connected together with home bus network, and accessed to the Internet. This is a kind of practical home appliances Internet surfing scheme, and it has wide application prospects. After comparing a few kinds of field bus network schemes, the thesis decided to adopt CAN bus to construct the network, and generally discussed the character, technique features and reliability of CAN bus. It also provided the whole construction scheme of the home network based on CAN bus. By studing the current nonpolarity networks, a nonpolarity scheme of CAN bus has been put forward in this thesis. This technology has been successfully used in the CAN bus network, and greatly improved its practicability. Meeting the needs of home appliances network, a thought of using the embedded gateway working continually as home control center has been proposed in the thesis. A practical presentation to the design scheme of embedded gateway has been given, too. The top-grade MCU Rabbit2000 has been selected as the microprocessor of the embedded gateway. The connection of the CAN bus network and the Internet have already been realized. On the other hand, the website has been founded and the long-distance control of network appliances have been realized. Large amount of simulation experiments have been carried out in the project by utilizing favorable network resources and environment in our university, and the basic structure of network appliances control system based on CAN bus has also been established primarily.更多还原