酒精测试仪的设计说明说.doc

基于51单片机的酒精报警器设计 摘要 近年来，随着我国经济的发展，人民的生活水平提高，越来越多的人有了自己的私家车，而酒后驾车造成的交通事故也频频发生。 如今国家法律出台道路交通安全法规定，饮酒后或者醉酒驾驶机动车发生重大交通事故，构成犯罪的，依法追究刑事责任，并由公安机关交通管理部门吊销机动车驾驶证，终生不得重新取得机动车驾驶证。 酒后驾车引起的交通事故是由于司机的过量饮酒造成人体内酒精浓度过高，麻痹神经，造成大脑反应迟缓，肢体不受控制等症状。为本课题研究的是一种以气敏传感器和单片机为主，监测空气酒精浓度，并具有LCD显示功能的空气酒精浓度监测仪。此需要设计一智能仪器能够监测驾驶员体内酒精含量。本课题研究的是一种以气敏传感器和单片机为主，监测空气酒精浓度，并具有声报警功能及LCD显示功能的空气酒精浓度监测仪。其可监测出空气环境中酒精浓度值，并根据不同的环境设定不同的值，对超过的值进行声报警．来提示危害。从而达到以下目的：；；使之关键词：abstract In recent years, with the development of our country economy, peoples living standards improve, more and more people have their own private cars, and drunk driving cause traffic accident also occur frequently. Now national law on road traffic safety regulations, major traffic accident after drinking or drunk driving motor vehicle, if the case constitutes a crime, shall be investigated for criminal responsibility according to law, and by the traffic administrative department of the public security organ his motor vehicle driving license revoked, and to regain the motor vehicle driving license shall not be for life. In view of the people for drunk driving has gradually, alcohol testing issue has caused wide attention. Drunk driving cause traffic accident is caused by drivers excessive drinking alcohol concentration is too high, in the human body paralysis nerve, cause the brain slow response, the symptom such as uncontrolled body. For this topic research is a kind of gas sensor and MCU is given priority to, monitoring air alcohol concentration, alcohol and which has the function of the LCD display air concentration monitor. The need to design an intelligent instrument to monitor drivers alcohol content in the body. This topic research is a kind of gas sensor and MCU is given priority to, monitoring air alcohol concentration, and has the function of voice alarm and LCD display air alcohol concentration monitor. It can detect and breathe out the alcohol density in air environment, and according to the different environment set different thresh