基于stm32的车载酒精监控系统

AbstractAiming at the phenomenon of that the drunk driving causes traffic accidents frequently,designed a controlling system to prevent drunk driving.By doing this the potentialconsequences of the drunk driving will be killed at source.This system is an ultra low powersystem based on STM32 single chip microcomputer alcohol detection controlling instrument.And it could test the alcohol concentration automatically,so that the driving safety could beensured.The system would feedback specific informations to the driver according to thedetected result of alcohol.If it is out of the standard,the driver could not launch the car,which fundamentally put an end to the emergence of drunk driving.There are manyadvantages on high cost performance,high intelligence degree and working stably andreliably.And it can be used in any occasion where the alcohol concentration needs to bemonitored.The system is as the core of MCU,and associated with the detection circuit,controlcircuit,LCD display circuit,voice alarm circuit,so as to provide the intelligent vehicle safetycontrol services.Because of the capacity of equipment detecting,making judge actively andstrong human-computer interaction,it has a high value on practicing.Key words Alcohol test;Voice alarm;LCD liquid crystal display;STM32 single chipmicrocomputer