Design Of Smart Home Control System Based On Wifi And Web

Smart home controls the various living facilities and equipments related to our life by making use of central control unit and connects them through the different communication networks and the corresponding control wiring. And they are controlled intelligently through certain mechanism and corresponding terminal. Smart home system can bring lots of convenience to our life, greatly improving our quality of life. But the popularization and application of the smart home system is difficult for the season of their problems of expensive and impractical. Therefore, one of the main research of the smart home system is the design and development of it with the characteristics of low cost and easy to use.In this paper, a kind of simple and practical smart home system prototype is put forward through the analysis and research on the existing domestic and foreign smart home system, combined with the characteristics of the application of domestic demand. It divides smart home system into 3 parts, such as the control object, the centralized controller and the user terminal. The key work is to complete the software design and hardware design of the centralized controller and part of the software design of user terminal, making use of embedded system design technology.First, a stable hardware system is needed by smart home system to act as the centralized controller. So an embedded circuit with the processor of S3C2440 A and other peripheral circuit, such as DM9000, is designed. Secondly, the good scalability and open source of Linux will be made full use to build the development of software environment. In this way, it lies the foundation for the realization of the operation and control function of smart home. In the development of process control software, QT which is based on underlying Linux will also be an important carrier of the smart home system interface. Meanwhile, the key to interoperability between smart home system equipment is the connection and control between the control circuit of smart home and its relateddevices. Therefore, the method of web control system based on wifi will be applied to it, and the connection among the devices in home will base on wifi, using the page that is based on web to control the related equipment. Beside this because the pages can be invoked through the appropriate browser, it also brings cross-platform features operational aspects. So, it goes without saying, such constructed smart home system with the advantages of low cost, easy operation and cross-platform control, etc, will be able to improve the interoperability throughout the ideal smart home control circuit devices. Finally, it also offers another easy way to help the members who can’t use smart devices in our home to control the system through IR circuit, it acts as an add to smart home system.A smart home system based on wifi communication and web control is designed through using the design of software and hardware. And some function modules are debugged. The desired design goals of the characteristics of low cost, easy to use and cross-platform are achieved.