The Design Of The Intelligent Indoor Air Monitoring And Purification System

With the acceleration of industrialization,the change of human life can be described with each passing day.While enjoying convenience brought by the industrialization,human beings are suffering unprecedented environmental pollutions,of which the most serious one is the dust pollution.In order to improve the living environment of air quality,people are taking various methods to detect and eliminate dust pollution.Although there are various kind of indoor environment monitoring instrument on the market,majority of them are only used for the monitoring.However,these products are not capable of automatically controlling and improving the indoor air quality.Only by systematically combining the dust monitoring function with the dust removal function can this kind of instrument create a favorable indoor environment for people.Therefore,designing the indoor intelligent detection and purification system to improve the indoor air quality has great practical significance.This topic according to the functional requirements of the system,analysis of the existing dust detection technology,wireless communication technology,display technology and the advantages and disadvantages of air purification,the main technical scheme of common technology in the comprehensive comparison,from the selection of the most suitable design.The design of indoor intelligent air monitoring and purification system is mainly based on dust concentration and temperature and humidity detection technology,and combined with the design of 2.4GHZ wireless communication technology.Taking the nRF24LEl as the control core,the data acquisition,processing,display,storage and data transmission of dust sensor,temperature and humidity sensor are realized.Based on the light reflection principle,the sensor GP2Y1010AY0F is designed as the dust detection unit.Temperature and humidity detection with temperature and humidity sensor AM2301.Through the acquisition and calculation of the final data will be displayed on the OLED screen,and finally through the 2.4GHZ wireless network monitoring data will be transmitted to the PC machine for data storage and processing.When the dust concentration data exceeds the threshold value set by the system to control the operation of the negative ion generator,so as to improve the indoor air quality.The slave computer can automatically start the purification system according to the surrounding dust concentration without the participation of the host computer.Compared with the data of DC 1100 Pro dust testing instrument,the purification effect of indoor dust concentration is obvious after the intelligent system starts.This system can realize the real-time monitoring for different environment indicators,such as the temperature,humidity and the dust concentration.The anion purifying equipment can greatly improve indoor air quality.What is more,this system is cost-effective,stable,easily expandable,and highly intelligent.The system can be widely used in different locations,such as home,vehicle and the underground mine,therefore creating very wide social benefits.