Design And Implementation Of Intelligent Home System Based On Internet Of Things

In recent years,with the rise of the Internet of things,machine perception has come into our life.Through the Internet of things series,networking equipment model such as bamboo shoots after a spring rain appeared in the market.Because of its high sensitivity,wide acquisition range,high data precision,good network stability,and the full digital operation mode,it has been widely used in the city's intelligent information construction.In a smart city,for the sense of key information measurement,analysis,integration of city operation of the core system of the use of networking technology,to realize the wisdom of management and operation of city,so as to create a wonderful life in the city,and promote the harmonious and sustainable development in the city.The smart home,as the basic unit of the wisdom of the city,with the family as the carrier,intelligent home equipment control,family environment perception,family health perception,the perception of safety and Home Furnishing information exchange,consumption and service life of Home Furnishing effectively combine to create a healthy,safe,comfortable,convenient,personalized Home Furnishing low carbon life.On the basis of the study and analysis of the Internet of things architecture and key technology,this paper proposes a smart home automation system model based on Zigbee and BPLC technology.Zigbee&BPLC gateway and Zigbee&BPLC module which connects the wisdom of household appliances,meters,access control security facilities forms the intelligent home LAN backbone network.The hardware circuit diagram of Zigbee&BPLC module is designed.From the angle of high fidelity of signal,the signal transmission and receiving device of Zigbee&BPLC module is optimized.The six order Chebyshev band-pass filter as the filter BPLC carrier signal,using Y capacitor as carrier signal coupler BPLC,the hardware circuit of signal transmission transceiver drawing in Multisim12 software and simulation verification.The results show that the design of the signal transmission and receiving device to the carrier signal coupling attenuation can be controlled at 3dB,in the carrier signal frequency band 2~28MHz ripple attenuation is only limited to 3dB.Combined with the function of intelligent home automation system,the host computer control software is designed in Visual Studio.Then,in the experiment environment,the performance of the signal transmission receiver and the function of the host computer software are tested,and the expected design requirements are achieved.Finally,this paper summarizes the work done in this paper,unfinished task is prospected and planning.