The Design And Implement Of The Indoor Air Monitoring System Based On STM32

With the rapid development of global economy, the requirement for life quality of people is increasingly improved; moreover, people gradually attach importance to the living environment. Meanwhile, the fields of electronics, computers and so on have developed to an unimaginable high stage, which provide strong technical support for the intellectualization of living environment. Under these conditions, intelligent home system is born and develops well. Therefore, intelligent home system becomes one of the hot topics in recent years. Currently, intelligent home and intelligent housing environment are in the initial development stage; in order to take market share one step ahead, electronics companies and household electrical appliances companies concentrate more efforts on research. People become more and more concern about the indoor environment because of the increasing worse outdoor environment. Hence, it is an essential issue of smart home system about how to make indoor environment getting more comfortable, healthier and safer.The research purpose of this paper is to solve problems from monitoring and controlling indoor temperature, humidity and smoke concentration, which provides reference for DIY of small intelligent housing environment and the detection system of Internet of things.The main work of this paper is to design a set of detection system for housing environment, where data interaction between a specific computer and housing environment detection system can be done through wireless transmission mode, which would monitor the indoor temperature, humidity, smoke concentration and other data. This system mainly achieves four functions:collecting varies data from housing environment by using different detectors, and transmits the collected data to master controller through RS-485 circuit; the master controller then transmits the environment data to PC upper computer; upper computer would real-time display the relevant data of housing environment and achieves human-computer interaction; the PC would regulate and control indoor environment by controlling the air conditioner, humidifier, alarm according to feedbacks from detection.After testing and practical application, this system works well and basically achieves requirements of all functions, which consists with design criterion.This design fuses temperature, humidity, smoke-scope and other air quality parameters together in a system and breaks the old way of individually acquisiting various parameters, which play a role as reference effect for later studies.