文档介绍：基于单片机的酒驾测试仪毕业论文
酒驾测试仪毕业论文
学院: 计算机与信息工程学院
专业年级: 09级自动化
学生姓名: 刘洋学号: 20094495
设计论文题目: 酒后驾车测试仪
起迄日期: -7>
指导教师: 朱启发(副教授)
教研室负责人: 陈志新(教授)
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。很多车主
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
0>.部分 5
. 单片机部分 7
.示部分 8
.分: 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。引起交通事故的基本因素有人、车、路、环境与管理等,其中驾驶员本身因素占70%。而酒后驾车是驾驶员驾驶事故重要因素之一。世界各国统计,30%~50%的交通事故由饮酒后驾车所至。我国交通部门报道,酒后驾车的交通事故率比平常人高出至少5~6倍。在1989~1990年中,因酒后驾车引起的交通事故平均每年高达3万余起。我国交通法规定:禁止酒后驾车。在我们的调查中,%,%的驾驶员经常酒后驾车。酒后驾车与车祸的关系是无可辩驳的。美国近4