| With the development of technology and advancement of people's living quality, people turn to pay more attention on life's security, comfort, convenience etc. Smart home system is to connect the facilities and devices (such as lighting system, safeguard system and electrical equipments etc)using computer, embedded system, network technology by home network, which provides people more comfortable and convenient life. The main work and innovate point are as follows:We utilize the 32-bit embedded ARM processor S3C44B0X as the controlling core of the smart home system in this paper. It has characteristics of high performance, plentiful interfaces and convenient transplantation and extension. And also we adopt embedded technology as the platform of the smart home controller owing to its high real-time ability, high reliability and rich resourses. Thus the application of smart home system becomes the secondary development on the embedded platform so that the developing period is cut down and resource is saved.By means of the analysis of smart home system, I design the global structure. Aiming at character and function of smart home system, I analyse fundamental structure of smart home controller, design core circuit of controller in detail, including main S3C44B0X controller chip circuit, memory system circuit, power and reset circuit. On demand of global project design, I design LCD interface circuit, keyboard circuit, Bluetooth module circuit and other peripheral interfaces, and finish establishing all the system hardware platform.By means of portingμC/OS-II embedded realtime operation system, it can run multitasking program. The paper introduces speciality ofμC/OS-II in detail and plans software structure based on it and analyse actuvate code. The paper expands on software design of smart home controller, gives all the software structure and flow graph, finishs the software design of LCD, keyboard, Bluetooth module and acomplishs interconnect of Bluetooth point to point. At last I give the design of part functional module, such as temperature measurement, saftguard, information appliance and so on. |
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