文档介绍：酒驾测试仪毕业论文
学院: 计算机与信息工程学院
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设计(论文)题目: 酒后驾车测试仪
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摘要
自《刑法修正案(八)》和修改后的《道路交通安全法》正式实施,“醉酒驾驶”正式入刑。不仅交警部门,而且很多车主都期盼能够有便携仪器方便地测量气体酒精浓度,为安全驾驶提供保障,有效减少重大交通事故的发生。
本研究设计的酒精浓度测试仪是一款实用性强、安全可靠的气体乙醇浓度检测工具,采用高精度MQ-3乙醇气体传感器对空气中的乙醇浓度进行检测,利用宏晶公司高性能低成本单片机STC12C5A16AD对检测信号进行A/D转换和处理,最后通过液晶屏显示输出。本研究设计的酒精浓度测试仪还具有醉酒阈值设定功能,可以根据法律法规或用户需要设定修改醉酒阈值,并进行保存。本测试仪体积较小便于携带,且操作简单方便,造价较低廉,性价比较高,适合推广使用。
关键词:酒驾测试仪;酒精浓度;STC12C5A16AD;MQ-3;阀值
Abstract
Since the "criminal law amendment (eight)" and the "road traffic safety law" formally implemented, "drunk driving into the punishment" formal. Not only the traffic police department, and many owners are looking forward to a portable instrument conveniently measure the alcohol concentration of gases, which provides guarantee for safe driving, effectively reduce the occurrence of major accidents.
Alcohol concentration tester designed in this study is the gas concentration of ethanol detection tool for a practical, safe and reliable, high precision of MQ-3 alcohol gas sensor to detect the concentration of ethanol in air, A/D conversion and processing of signal detection using macro crystal, high performance and low cost microcontroller STC12C5A16AD, finally through the LCD screen display output. Alcohol concentration tester designed in this study has drunk threshold setting function, can according to laws and regulations or the user needs to set the threshold to modify the drunk, and save. The instrument is small volume to carry, simple and convenient operation, low cost, high performance, suitable for the promotion of the use of.
Keywords: Drunk driving tester; alcohol; STC12C5A16AD; MQ-3; threshold
目录
摘要 II
Abstract III
1 绪论 2
2
3
3
2 方案设计 4
4
各部分介绍 5
5
单片机部分 7
8
: 9
3 Protel硬件开发软件 10
4 软件设计 12
5 下载与调试 13
致谢 16
参考文献 17
附录: 19
电气原理图 19
PCB电路图 20
程序清单 21
1 绪论
交通事故已成为对人类生命安全威协最大的“第一公害”。全球每年有50万人因车祸丧生。引起交通