摘要
为了及时预防醉酒驾驶,保护人身安全,设计了一种基于单片机控制的车载酒精浓度检测仪。该检测仪以AT89C51单片机为核心,利用气敏传感器、A/D转换器检测驾驶员呼出气体的酒精浓度,并可根据车型的空间设定不同的阈值。当浓度超过阂值,检测仪可自动切断点火电路,并实现声光报警功能,从根本上解决司机酒后驾车的问题。该检测仪体积小巧,性能稳定性好,安装和调试方便,具有现实意义。
In order to prevent drunk driving and protect the personal safety,the vehicle alcohol concentration detector is designed by using the microcontroller.The AT89C51 is the core of the detector.The driver＇s breath alcohol concentration is detected by using the gas sensor and A/D converter,different thresholds is set for the different vehicles.If the threshold exceeding the setting space,the ignition circuit is cut off automatically,then the sound and light alarm signals are sent to the driver,so the problem of drunk driving is sloved fundamentally. The detector has the advantages of small volume,stable performance,convenient installation and debugging and the good practical significance.
出处
《测控技术》
CSCD
北大核心
2013年第8期1-3,7,共4页
Measurement & Control Technology
基金
国家科技部中小企业创新基金资助项目10C26244104519
11C26214102523
河南省自然科学基金资助项目(102300410240)
