The Research And Design Of Embedded Smart Home System

With people seeking intelligent, confortable and convenient living environment, people have paid more and more attention to smart home, and it is gradually changing people's living habits. This paper ananlyzed the study and development situation of smart home at home and abroad, and combined with the characteristics of smart home products in the market, a smart home system based on embedded is designed. The system composed of home gateway and terminal nodes.The home gateway is the core of the whole system. It is responsible for the management and control of the entire system.The terminal nodes are the home gateway control object, mainly used to control household appliances and detect family environment. This paper elaborates the design of the smart home system from both hardware and software aspects. Finally, the system was tested.The hardware part design the structure of home gateway and terminal nodes, and the circuit of each interfaces and modules. Implements the circuit design of home gateway, including power supply module, reset circuit, JTAG debug interface, network interface, storage module, wireless communication module and so on. And the same time, implement the circuit design of terminal nodes, including power control, temperature and humidity detection, infrared control and storage module.The software part introduces the software function of smart home system, designs the communication protocol of the system, and from the two aspects of home gateway and terminal nodes introduced the software design of the smart home. In the part of home gateway software design built the home gateway software development platform, design the smart home system database, and design the software of configuration module, protocol conversion module, and control module; In the part of terminal node software design introduces the design of storage module, infared control module, temperature and humidity detection module.The test part, tests the whole system, including the system configuration, system control and quality of internal wireless communications test. Test results show that the system has low cost, high reliability, applicability and other characteristics, meeting the goals and demands of the system.