The Research And Design Of Smart Home System Based On ZigBee Technology And Embedded Device

With the development of the Internet of Things, the smart home systemaimed comfort and safety has gradually become the topic people focusattention on recently. By analyzing the course of development on homesystem at home and abroad, the authors has found that the wirelessness,standardization and the popularity of smart home system is bound to be anunstoppable trend of development. Contrast with the features of Bluetooth,Wireless Fidelity, infrared, ultra-broadband, major wireless transmissiontechnologies now, and more attention is focused on the ZigBee protocol andits topology. The ZigBee wireless transmission technology with the features of low-power, low-cost, low data rate, high-capacity is adopted as internalnetwork in the smart home system. The telephone net with low-cost, maturetechnology works as an external network.SPCE061A and CC2430module with2.4G RF are introduced ascoordinator in this system. It is a big advantage that the design of speechrecognition with SPCE061A is quite simple. And lot of time is cut off in thedesign period. The voice control function is more powerful in the homesystem. Series of sensors, electrical appliances and CC2430modules areterminal nodes. The CC2430has the functions of a high-performance2.4GHz RF transceiver core and an industrial grade compact and efficient8051controller. With the configuration of protocol stack, hardware designwork of network node is greatly reduced. Telephone line is connected withmodule of PH8809. And the dual-tone multi-frequency chip MT8880achieves recognition of information and feedback of the SMS from homesystem. And some flow diagrams of software design are created. A ZigBeenetwork is completed and the function of sending and receiving date isrealized.