Design Of Home Environment Monitoring And Control System Based On STM32

With the advancement of science and technology such as computer,communication,wireless sensor network and so on,people’s living standards are constantly improving,and people begin to put forward higher requirements for environment.Using scientific and technological means to monitor the living space,realize the networking of family environment parameters,and improve the comfort and security of environment become the main theme of the development of home life.On the basis of summarizing and researching the existing family environment monitoring system,a family environment monitoring and control system based on STM32 is designed to solve the problems of traditional monitoring system,such as fewer monitoring parameters,complex assembly control and structure.The system uses STM32 as the main control chip to monitor the temperature and humidity,smoke,concentration of toxic and harmful gases and intrusion data in real time.It can be displayed on LCD display screen,and send the data to open cloud platform by wireless transmission.It realizes hardware module,PC and mobile phone APP data transmission,and real-time alarm information to ensure the safety and comfort of family life.Firstly,based on the relevant literature and scientific reports at home and abroad,this paper expounds the development process and current situation of the family environmental monitoring system.On this basis,it carries out systematic research and exploration,clarifies the design objectives of this paper,gives a complete design scheme,and plans the overall structure sketch of the system.Secondly,the selection of core components and sensors is discussed.The hardware circuit schematic design,circuit PCB layout and wiring,and hardware welding debugging are completed.The working principle of each sensor module circuit is discussed in detail.Then,the software scheme of the system is elaborated in detail.The workflow of each module is determined,and the sensor program of temperature and humidity,smoke concentration,gas concentration,infrared detection of human body and the wireless transmission data program are compiled using Keil uVision 5 as the development software platform.The model of wireless transmission module access network is described.Finally,the actual test shows that the wireless transmission module can access the network.The home environment monitoring and control system based on STM32 works well in hardware,has strong reliability,low system cost and is easy to use.The software can view data in real time on the open Internet of Things platform and mobile phone APP,and can make corresponding alarm operation.