文档介绍：摘要
本文研究设计了一种用于公共场所具有检测及超限报警功能的酒精浓度智能测试仪。其设计方案基于89C51单片机,MQ3酒精浓度传感器。系统将传感器输出信号通过A/D转换电路调理后,经由单片机进行数据处理,最后由LCD显示酒精浓度值。从而让驾车的人知道自己该在什么情况下可以开车,这是一个在现代生活很实用。
经过大量的验证,基于单片机的酒精浓度监测仪检测仪比传统的机械检测仪或酒精计灵敏,监测精度高,准确方便,可靠性好,扩展简单,控制功能强大。对超出阀值进行声光报警,直观准确。所以基于单片机的酒精浓度监测仪的研究具有一定的价值。
关键词:
酒精浓度传感器单片机数模转换硬件设计数码管显示
Abstract
This paper studies has been designed for public inspection and overrun alarm function with the alcohol concentration intelligent tester. Its design scheme based on 89C51, MQ3 alcohol concentration sensor. System will sensor output signal through the A/D circuit recuperation, data processing by MCU, finally by LCD display alcohol chroma value. So let the people know what oneself should drive in what circumstances can drive, this is a very practical in modern life.
After a great deal of verification, based on SCM alcohol concentration monitor detector than traditional mechanical detector or alcohol plans, monitoring high precision, sensitivity, good dependability, precise convenient extended simple, control powerful functions. Beyond the value of acousto-optic alarm, intuitive accurate. So based on SCM alcohol concentration monitor research has certain value.
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Keywords:
Alcohol concentration sensor microcontroller digital-to-analog
Hardware design Digital pipe display
目录
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第二章设计方案和元器件选择 3
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第三章硬件设计 10
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第四章系统软件的设计 19
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第五章本设计总结与展望 24
参考文献 25
致谢 27
附录 28
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检测仪向更迅速更快捷发展,方便携带等要求发展。传统的机械检测仪或酒精计一般灵敏度和准确度也比较低或者检测方法难,同时单片机既有通用计算机的基本部件,又不同于计算机。有体积小,实时快速的对外部事件做出响应,迅速采集大量数据,做出逻辑判断与推理后实现被控对象的参数调整与控制,且能满足检测仪的设计要求,所以基于单片机的酒精浓度检测仪的开发有很大意义。
以对气体中酒精含量进行检测