Design Of Intelligent Home Control System Based On WIFI

With the rapid development of science and technology,the development of smart homes means that people begin to pay attention to the needs of their own living environment.With the advent of the mobile Internet era,the evolvement of wireless communication technologies has become more and more sophisticated,and smart home systems have begun to evolve from traditional models to wireless smart models.This article deeply analyzes the Singlechip technology,automatic control system technology,computer system technology,embedded and wireless network communication technologies,etc.It proposes a scheme of research on smart home monitoring system based on WiFi wireless communication.The system adopts WiFi wireless communication and composes network with electrical appliances,mobile handhold devices and so on form a complete Internet of things control system).The specific research works in this paper as follows:(1)Summarized the development status and trends of smart homes at home and abroad,study the WiFi wireless communication protocol stack structure in depth,and propose a design scheme for WiFi-based smart home monitoring system.The system includes a remote controller,a monitoring terminal,and a video monitoring module.Adopt WiFi wireless communication networking between each module,which has the functions of home appliances control,intelligent security alarm and real-time monitoring.(2)Combined the technology of image transmission,video compression and so on,improve the image algorithm for the video monitor module of the system.Based on the lossy discrete cosine transform DCT algorithm,in order to reduce the amount of floating-point operations,the two-dimensional integer DCT convert to the one-dimensional DCT which needs twice calculations,and then apply the curve fitting algorithm to eliminate the block generated in the compression process.The effect enables the system to obtain sharper and brighter images at the same time and bandwidth speed.(3)Combined with embedded,WiFi wireless communication,liquid crystal display,android design,data transmission and other technologies,specific hardware design is performed on the three functional components of the system(remote controller,monitor,video monitor).The remote controller mainly includes a liquid crystal display module,a data storage module,a wireless communication module,a power supply circuit module,and other functional modules.The wireless communication network is used to set up a wireless communication network to realize the monitoring terminal networking,realizing the real-time information monitoring display and data receiving and sending,and wireless intelligent control.The monitoring end mainly includes switch controller module,motor controller module,harmful gas detector module,anti-theft detector module,etc.,to realize the receiving mobile terminal(remote control or smart phone)control instructions,sending the electrical working status,electrical fault information and Home re al-time environment data.The image monitor module mainly includes a camera module,and a TF storage module to realize real-time image transmission in a home environment.(4)Used software development programs such as emWin,NodeMCU,and InrelliJ IDEA,software design was performed on the three functional modules of the system,and realize the APP control and reception,LCD interface and touch,data transmission,and WiFi wireless communication and Network,electrical control,real-time video image transmission and other functions.(5)Network debugging,function verification and design optimization were carried out on the WiFi-based smart home monitoring system.The results showed that the system achieved wireless home appliances control,informatio n voice input,intelligent security alarm,remote monitoring and other functions.