Design And Implementation Of Smart Home Control System For Speech Recognition Based On WiFi

With the continuous development of technology,smart homes based on the combination of traditional home appliances and the Internet of Things have begun to move from the laboratory to people's lives.Speech recognition has also begun to become a service in people's lives and work.However,smart home devices have not been widely popularized due to cumbersome interactions and poor security performance.Based on the actual demand,this paper designs a smart home control system that combines WiFi wireless communication technology with voice recognition control.The system design is mainly divided into three parts,namely hardware system,communication protocol and mobile phone client.For the hardware design,the STM32 with outstanding cost performance is selected as the microcontroller.The communication module chooses to use the widely used ESP8266,and the current USB interface design is used in the power supply design.In the communication protocol design part,the focus is on the "sticky package" problem that may occur,and a special verification mechanism is designed.According to the recognition of speech recognition and natural language,the protocol is classified and designed to improve the scalability and versatility of the communication protocol.At the same time,in order to ensure the security of communication,special encryption processing is performed on the communication data to ensure the information security of the user.In the design of control software,Baidu speech is used to realize speech recognition,so that the system not only has online recognition function but also partial offline function.Login page and user operation page are designed in interface design.In order to make the whole system more stable,the traditional button control is added to the control mode,which makes the whole system more stable.After completing the above design,the final set of systems is completed.Finally,the system was tested for special functions.The results verified the feasibility of the system design and the rationality of the protocol design.