Research Of Smart Home Based On IEEE 802.15.4/ZigBee Technology

Wireless sensor network is a new kind of meshwork with a big progress in micro-electronics, wireless communications and embedded system technology. It can real-time supervise, apperceive, gather and process data information of all supervision objects. It has an extensive application foreground, and is highly recognized by the military field, the academia and the industrial field in many countries. The IEEE 802.15.4/ZigBee protocol with low cost and low power consuming has provided an international standard of wireless communications for wireless sensor network between sensor nodes. It is constituted by physical layer and medium access control sub-layer of the IEEE 802.15.4-2003 standard, added network layer and application layer of the ZigBee criterion.Smart Home network system link the communication equipments, home wiring and home safe equipment to it , to make effective control and information exchange. And the home netwok link to the Internet, using long-distance surveillant system to conctrol the home condition. Although the Smart Home concept has been brought forward for years, because of the slow development of communication technology, its practicality is limited. Along with the appearance and grow up of ZigBee, the application of wireless sensor network based on IEEE 802.15.4/ZigBee in Smart Home field may possibly speedup enter into people's lives. According to the characteristics of the current smart home control system, we advance a novel scheme of smart home remote control system which is based on the ARM platform, ZigBee wireless network and GPRS module. This system is added into the present structure of the smart home with ZigBee wireless network module and GPRS module, connecting the sensor and controller onto the ZigBee node in the network and realizing the scattering display without wire-layout of the sensor and controller. So the user needn't relayout the wire and easily realizesed to domestic appliance long-distance control to telephone and computer control and other more intellectual control.