Design And Implementation Of Wireless Communication System Of Smart Home Based On STM32 MCU

With the development of networking technology and intelligent electronic products,more and more families began to pay attention to the Smart Home,China's household electrical appliance enterprises and Internet companies put a great effort to the research and development of products and systems of Smart Home,so that the Smart Home began to spread.Meanwhile,as a popular communication technology,wireless communication is used more and more in Smart Home system,some kind of wireless communication protocol with superior performance cut a figure in the market competition,and form factions.In this paper,on the background of cooperation project of embedded Laboratory of computer science South China University of Technology and company,on a wireless communication system for Smart Home in using Wi-Fi,433 M RF communication,303 M transmitting infrared wireless communication technology,using personal computer,tablet,mobile phone and other wireless terminal to control and monitor the household appliances.The system has the advantages of short development period,easy cost control and strong compatibility to most of household appliances.The main contents of system design are as follows:(1)Introduces the development of Smart Home in China and abroad,and compares the difference of it between China and abroad,and then puts forward the purpose and significance of this wireless communication system,giving the innovation of the system design.(2)Aims at the users' requirement in Smart Home of Controlling,entertainment,security and protection,monitoring,etc,combined with the present product of communication in the main current market,puts forward a design method based on serial port communication of module,using high performance MCU to do the communication scheduling of the modules.This method of system design can reduce the cost of research and development,shorten developing periods and give consideration to corporate profits under the premise of meeting the needs of users.(3)From model selection of components and parts to locating and wiring of circuit,and to the design of wireless communication system protocol and coding of MCU,elaborating the design and implementation of wireless communication system in hardware and software components.(4)According to users' application scenarios in life,sets up the testing environment in complex electromagnetic environment,tests the function and performance of system,and gives the overall characteristic of system according to the test result in the end.This paper provides new ideas and methods reference for the research and design of wireless communication system in Smart Home.