汽车空气质量检测电路的设计

Design of Automotive Air Quality Detection Circuit

本设计拟对汽车车内空气质量进行检测,该装置以AT89S52单片机为控制核心,由模数转换器芯片ADC0832、粉尘传感器SHARP GP2Y10 10F 45、液晶显示屏LCD1602组成PM2.5浓度检测系统。粉尘传感器采集汽车空气中的颗粒物,经过模数转换成数字信号,通过单片机处理后输送给液晶显示屏显示当前PM2.5的AQI值,当检测的空气质量超过预设空气值时进行报警。

This design intends to test the air quality in automobiles,which takes AT89S52 as the control core.The system consists of ADC chip ADC0832,dust sensor SHARP GP2Y10 10F 45 and LCD 1602.Dust sensor collects particulate matter in automobile air and converts it into digital signal by analog-to-digital conversion,and sends it to LCD to display the AQI value of PM2.5.Alarm events when the detected air quality exceeds the preset air value.