基于单片机的防酒驾系统设计  

Design of Drunk Driving Prevention System Based on Single Chip

作　　者：司立宇 郑要权[1] 

机构地区：[1]德州学院,山东德州253023

出　　处：《时代农机》2016年第12期32-33,共2页Times Agricultural Machinery

摘　　要：采用AT89S52作为系统的中央处理单元,用于接收气体传感器的输入信号,以及控制继电器动作。选择MQ-3型气体传感器作为检测呼出气体中酒精含量的传感器,检测结果输入到单片机内。继电器的两个输出控制端一路连接酒驾报警灯,另一路连接发动机的打火装置。当呼出气体正常时继电器连接发动机打火装置,汽车可以启动;当呼出气体酒精含量超标时继电器则连接酒驾报警灯,车辆无法启动。文章进行了电路原理图设计及软件程序设计,最后通过Proteus软件的ISIS模块进行了电路仿真,验证了本设计合理,功能完备。This paper uses AT89S52 as the central processing unit of the system,which is used to receive the input signal of the gas sensor,and control the relay action.The MQ-3 type gas sensor is selected as the sensor for detecting the alcohol content in the exhaled breath,and the detection result is input into the single chip microcomputer.One end of Two output control relay is con-nected to drunk driving warning lamp , another end is connected to the ignition device of engine.When the exhaled air is normal , relay is connected to the engine ignition device, the car can start;when the exhaled air contains more alcohol than the standard, the relay is connected with the drunk driving warning lights and the vehicle can＇t start.The paper designs schematic circuit dia-gram and software programming,and finally it proves that the design is reasonable and the function is complete through the circuit simulation of ISIS module by Proteus software.

关 键 词：防酒驾 气体传感器 电路设计 PROTEUS仿真 

分 类 号：U463.6[机械工程—车辆工程]