摘要
当前大气雾霾的主要污染源来自汽车尾气中的PM_(2.5)成分。为解决传统汽车尾气PM_(2.5)监测方法周期长、准确度低及操作繁杂的问题,基于STM32微控制器开发了汽车尾气PM_(2.5)监测系统。采用SD011型传感器实时采集汽车尾气中PM_(2.5)浓度,模数转化后显示在液晶显示屏上,若汽车尾气中PM_(2.5)浓度超过国家标准阈值,则系统立刻在液晶屏上显示预警信息,并进行语音报警。试验和测试结果表明,该系统能实时、准确及便捷的检测到尾气PM_(2.5)浓度,解决了传统汽车尾气PM_(2.5)监测问题,为大气雾霾防治提供了参考方法。
The main source of atmospheric haze is PM2.5 from automobile exhaust emission in the current. Automobile exhaust PM2.5 monitoring system based on STM32 has to be developed due to long cycle, low accuracy and complex operation for the traditional automobile exhaust PM2.5 monitoring method. Automobile exhaust PM2.5 concentration with SD011 sensor is measured in real-time, and they are displayed on the LCD screen after the modulus conversion. The system immediately displays warning information on the screen and makes voice alarm if the automobile exhaust PM2.5 concentrations exceed the national standard threshold. Experiments and test results show that this monitoring system can timely, accurately and easily detect exhaust PM2.5 concentration, solves the problems that the traditional automotive exhaust PM2.5 monitoring have, providing the guideline for the atmospheric haze prevention.
出处
《汽车工程师》
2016年第9期17-20,24,共5页
Automotive Engineer
基金
辽宁工业大学大学生创新创业训练项目(201501014)
