Research And Design Of Smart Home System Based On Power Line Carrier And Zigbee Technology

With continuous improvement of living standards,people have an increasing requirement on the residential function.Many householders hope to realize the intelligent control of home appliances and find out the home status at anytime and in anywhere without changing the existing housing pattern.At present,there are many smart home products in the market,but there is still no smart home products to the general family.So smart home products still have a lot to improve.This paper first analyzes the advantages and disadvantages of the three common networking methods of smart home.Taking into full consideration the feasibility,scalability,cost,power consumption and people's demand for smart home,it proposes a smart home system design scheme based on PLC(power carrier communication technology)and ZigBee technology.In this project,it is based on the Exynos4412 processor as the control center,the KQ330 chip as the power carrier module,and the CC2530 as the ZigBee communication module,which together build the smart home internal communication network.In terms of software design,this paper mainly studies the embedded system construction and application development.The embedded system construction includes: configuring cross tool chain,tailoring and transplanting kernel,making root file system,configuring Qt library file and transplanting database,etc.Application program design mainly includes: human interaction interface design,power carrier communication design,cloud platform program design,database design,etc.Among them,Qt and One NET cloud platform are used for the design of the artificial interactive interface and remote control respectively.One NET uses API interface to manage the cloud devices and data.At the same time,the remote monitoring function of the smart home is realized by the cloud video capability.A master-slave mode is adopted in power carrier communication,and a software design scheme is proposed to improve the quality of power carrier communication.Finally,the system is tested.and the experimental results show that the smart home system can run stably,meet People's Daily needs,and meet the predetermined design requirements: network is convenient,flexible,easy to expand and easy to operate.Compared with the single network smart home system,this design of smart home system has a broader market prospect.