Design And Research Of Security System Of Smart Home Based On 4G Network

With the development of economy and technology,the material living standards and quality are improving,and users are demanding higher and higher security system.Although the traditional security system has perfect record function,it does not have an alarm,so it is mostly used for inquiring afterwards.In emergencies,there is no timeliness,and often miss the best time to take corresponding measures.Aiming at the problem of low flexibility and narrow coverage of traditional residential security system,which can not carry out remote real-time alarm and video surveillance,a design scheme of smart home security system with remote surveillance and alarm function based on 4G network and Internet technology is proposed.This paper establishes a working environment of smart home security system based on 4G network.With ARM as the core,it processes detector alarm information and video data,sends alarm messages to mobile terminal,and transmits data coding to server for real-time viewing requests of corresponding users.The main work of the paper is as follows:(1)In order to optimize data storage and transmission,based on V4L2 technology,it is proved that the encoder(h.264)can realize high-ratio data compression,no reduced image quality,and stable data transmission.(2)A SMS alarm subsystem is designed based on GPRS technology.The subsystem can send alarm messages to users' mobile phones in short message under abnormal monitoring conditions.It can remind users to view real-time monitoring images and improve the stability and management efficiency of the system.(3)Aiming at the design and implementation of remote video surveillance system,the processor embedding method and the basis of selecting key equipment are put forward,and the basis of selecting various wireless sensors in smart home security system are given.(4)It is completed that the system structure is analyzed and the software and hardware are realized,and corresponding tests are also carried out.The results show that the system can achieve the above functions well.After research and testing,smooth video playback,in-time alarm,and stable data storage are achieved.And the transmission meets the design requirements.In addition to smart home security system,it can also be used in a variety of public places,with good application prospects.