基于单片机的酒精浓度测试的设计与研究1.doc

毕 业 设 计 设计题目： 系 别： 信息工程系 班 级： 姓　 　名： 指 导 教 师： 年6月10日 基于单片机的酒精浓度测试的设计与研究 摘 要 对于人体内酒精浓度的高低的判断主要依据于人酒后所呼出的气体中酒精浓度的高低做出适当的判断。随着经济的发展，人民生活水平的提高，酒后驾驶所造成的交通事故频频发生。为防止此类事故的发生，交通执法者检测驾驶员是否酒后驾驶尤为重要。 本文设计了一个基于单片机的酒精浓度检测报警系统，单片机作为主控芯片。MQK2酒精传感器将检测到的信息发送至芯片和设定的阈值比较后判断是否报警，若报警GSM模块实现了将报警信号发送至手机端，同时在液晶显示屏上显示测量结果。 本次设计的检测装置将89c51作为主要控制芯片、MQ302A 酒精传感器、AD0804 转换器、AT89C51 单片机控制器、声光报警、LCD1602 显示器、GSM模块等构成 。文中对酒精浓度检测的原理做出具体的分析和设计方案，对各个子模块进行了论证和比较。硬件设计采用Prote软件，完成了各个模块的原理图。软件设计采用Keil，实现了对信号处理过程的编程和调试。Design And Research Of The Alcohol Concentration Test Based On MCU Abstract Make a proper judgment on the alcohol concentration of alcohol concentration to determine the main basis to drunk the exhaled gas in the level of. With the development of economy, peoples living standards improve, drunken driving caused by traffic accidents happen frequently. To prevent this kind of accident, traffic law enforcement detect whether the driver drunk driving is particularly important. This paper describes the design of an alarm system for detecting alcohol concentration based on single-chip microcomputer, microcontroller as the main control chip. MQK2 alcohol sensor will detect the information sent to the chip and the set threshold comparison to determine whether the alarm, the alarm GSM module to achieve the alarm signal will be sent to the mobile phone terminal, at the same time, the measured results are displayed on the LCD screen. The detection device design will form the 89C51 as the main control chip, MQ302A alcohol sensor, AD0804 converter, AT89C51 controller, alarm, LCD1602 display, GSM module etc.. Principle of alcohol concentration detection in this paper makes the analysis and the specific design of each module, are discussed and compared. The hardware design using Protel DXP software, completed the design of each module principle diagram. Software design using Keil uVision2, the realizat