Research On Electrical Control In Smart Home Based On Zigbee Technology

With the development of wireless sensor network technology and network communication technology,the concept of the Smart Home is understood and accepted by more and more people.However,due to its own characteristics with only switch quantity control,poor scalability and high cost,the traditional Smart Home is increasingly unable to meet people’s pursuit for Smart Life.This paper proposed a smart home control system that based on Zigbee technology and ARM technology,in addition,introducing the wireless sensor network.By doing these,the cost of Smart Home have been reduced,at the same time,intelligence lives in wiring are more flexible,and the overall layout have a better scalability and flexibility.Firstly,this paper studies the development status of Smart Home at home and abroad,and analyses the key technologies(the Wireless sensor network technology and the embedded technology)used in Smart Home.By comparing the wireless communication technology(the Zigbee technology,Bluetooth technology,UWB,Wi-Fi and infrared)that are commonly used,it can conclude that the smart home system based on Zigbee technology in aspects such as power consumption,cost,and network capacity has great advantages.So,in this paper,Zigbee technology has been selected as wireless communication technology in Smart Home.Secondly,the control system structure and hardware platform have been set up.In the system,we choose the tiny4412 development board of the Friendly ARM company in Guang Zhou as the master control platform and the CC2530 chip of TI company as the system of wireless communication chip,completing the development of the gateway and the nodes of the wireless communication module in the control system.Antenna is studied in existing WSN,IFA antenna and whip antenna is developed so that the installation of the terminal node in Smart Home.After that,constructing and developing the environment of the control system software.Paper chooses Android as the operating system in the embedded gateway,converses Zigbee protocol and Internet protocol by adopting the method of virtual IP and uses LabView and Android Studio to finish the PC applications and the APP development of the intelligent mobile terminal.Paper also studied the wireless communication protocol,and choosed the most typical LEACH protocol to optimize.In the selection phase of thecluster nodes,joined the position and the current surplus energy information.At the end phase of the cluster head selected,adopted the simulated annealing algorithm.The results show that the optimized protocol on the network lifetime and data transmission efficiency has the very big enhancement.Finally,analyzed and concluded the finally experimental results.The results show that the scheme based on the technology of Zigbee is feasible in Smart Home appliance control system,with the characteristics of low power consumption,good scalability and low cost,besides,it has strong practical value and application prospect.