Research And Design Of Smart Home System Based On Zigbee

Aiming to the current develoment situation of Smart Home system all over the word and the weeknesses of traditional Smart Home system including bad extensibility and requring wiring,this thesis compares several kinds of existing wireless networking technology and brings a solution programme to Smart Home system based on ZigBee technology.This system uses ZigBee technology to formats a family internal wireless network. The whole system consists of terminal control system、home gateway and system terminal node.Terminal control system is a platform for users to realise the control of Smart Home system, and it can also initiate a connection to the home gateway for remote control through WIFI、Internet and so on.Besides, this system also supports local control. Terminal control system is comprised of Andriod mobile terminal、PC and local touch screen.Home gateway is the control center of the whole system, it can send the control information from outside network to destination node of family ZigBee network, so as to realise the transformation from outside network protocol into inside network protocol. Home gateway is made of gateway server and ZigBee coordinator which are connected by serial port.Gateway server uses the embedded systems build by SC32440&Linux. The devise of concurrent server based on C/S model and the construction of embedded Web server based on the B/S have been finished. At the same time, QT repository has been transplanted, and the design of QT Local control interface has also been completed.The system terminal node is function execution node based on ZigBee Technology. On the design, this node is made of ZigBee communication module and microcontroller-based functional implementation module which are connected by serial port.The system terminal node finishes the communications with home gateway through ZigBee, and it also completes the control of home furnishing equipment by microcontroller. The design of ZigBee communication module is based on CC2530 wireless system-on-a-chip, and every function execution mode is realised by microcontroller.The corresponding hardware and software design have been completed.Finally, this thesis tests every function module and the whole system, realized the interior of dimming control, air conditioning control and environmental temperature acquisition, reaching the design requirement and realising expected functions.