摘要:随着社会的快速发展，汽车逐渐成为人们主要的交通工具之一，在给人们带来方便的同时，汽车驾驶过程中安全问题也逐渐成为人们关注的焦点，如汽车被盗、车辆交通事故等问题也逐渐暴露出来。针对交通安全事故中典型的行车安全、车辆防盗及防醉驾的问题，本课题设计了基于STC12C5410AD单片机控制技术的行车辅助安全控制器，设计融合了高精度超声波测距、GSM短信防盗、酒精自测及语音报警等常见功能与技术，弥补了传统汽车辅助安全控制器功能单一性与性价比不高的缺点。控制器的实现可以在一定程度上防止醉酒驾驶、超速行驶和疲劳驾驶，从而提升汽车行车安全性能，保障了人身与财产安全，同时，间接地减少道路因交通事故的堵塞，保证社会的和谐稳定。

关键词：STC12C5410AD单片机 测距 酒精检测 GSM防盗

ABSTRACT:With the rapid development of automobile gradually become one of the main means of transport, bring convenience to people at the same time, the process of driving safety issues have gradually become the focus of attention, such as car theft, vehicle accidents, etc. problems are gradually exposed. For traffic accidents in a typical traffic safety, vehicle theft and anti-drunk driving problem, the subject was designed based on the traffic control technology STC12C5410AD single secondary safety controller. Program combines high-precision ultrasonic ranging, GSM SMS Burglar, alcohol and other common self and voice alarm function and technology, make up the traditional automotive auxiliary safety controller functionality unity and cost is not high shortcomings. Realization of the program to a certain extent, to prevent drunk driving, speeding and fatigue driving, thereby enhancing the performance of automobile traffic safety, protect personal and property safety, while indirectly reduce road congestion due to traffic accidents, to ensure social harmony and stability.

Keywords:STC12C5410AD MCU；Measure the distance；Alcohol testing；GSM burglar

　　　随着人们生活水平的不断提高，汽车逐渐成为人们出行的主要交通工具，但同时也带来了一些问题，如汽车被盗、汽车追尾以及酒驾等事件时有发生，因此，如何进一步提高汽车驾驶过程中的辅助安全性能变得尤为重要。本题目以51系列单片机为控制主芯片，利用酒精浓度传感器、超声波距离传感器以及电子密码锁，设计一套汽车辅助安全的多功能控制器，实现车辆外部障碍物距离、酒精浓度以及防盗状态的实时检测。 

　　　多功能控制器的实现将有利于改善汽车驾驶过程的辅助安全性能，从而减少交通安全事故的发生。设计任务如下：

(1)提供系统控制方案以及功能模块原理图 

(2)系统硬件实现；

(3)具备多种功能的实时提醒报警