设计简介：
项目名：基于单片机的酒精浓度测量仪的设计
项目编号：mcuclub-dz-010
单片机：STC89C52
功能简介：
1、通过MQ-3配合ADC0832检测酒精浓度，保留一位小数，当酒精浓度大于设置最大值，则亮红灯，蜂鸣器报警，并控制继电器启动风扇，酒精浓度正常，则亮绿灯
2、通过按键确认检测，并通过语音播报酒精浓度
3、通过按键可设置酒精浓度最大值
4、通过4位数码管显示数据
总字数：9828
实物链接：点击跳转
设计说明书链接：点击跳转
开题报告链接：点击跳转
答辩PPT链接：点击跳转
摘 要
随着汽车行业的快速发展，汽车保有量逐渐增多，汽车行车安全成为当今社会关注的焦点，而酒后驾车是造成当前道路交通事故的重要因素之一。因此，为降低酒后驾车带来的损失以及人身安全事故，预防酒后驾车的智能监控系统成为各界研究的重点。对此，以单片机和传安全技术为基础，针对车载防酒驾系统进行深入的分析。采用STC89C52单片机技术、酒精浓度检测传感器技术、数码管显示技术、语音技术进行设计，设计出预防酒后驾车的智能监控系统流程图，另外结合预防酒后驾车的智能监控系统流程图，设计了酒精传感器电路、LED报警电路、液晶屏显示电路等;，对预防酒驾系统进行了硬件方面的设计，同时采用Keil5编程软件完成系统整体程序的编写，体现了系统酒精呼气判断、浓度采集、系统报警显示以及通风和语音播报当前酒精浓度，有效避免了驾驶员的酒后驾车行为发生;最后，将设计完成的硬件电路与编写的软件程序相结合，进行了实验与调试工作。当驾驶室内酒精浓度超过用户设置的参数时，LED红色指示灯亮，且此次设计酒精浓度可以准确到小数点后1位，酒精浓度检测正常，绿色的指示灯点亮，并经过多次实验测试，验证了该系统预防酒后驾车功能的可行性。经过实验表明，所设计基于传感器车载预防酒后驾车的智能监控系统对酒后驾车具有有效的预防作用，不仅实现了对驾驶员呼气酒精浓度的快速、准确检测，从而避免酒驾行为的发生，这为交通安全提供了主动性防护保障，对预防酒后驾车具有一定的实用价值。
关键词：预防酒驾；酒精检测；语音播报；数码管显示
Abstract
With the rapid development of the automobile industry, car ownership has gradually increased, and car driving safety has become the focus of today’s society, and drunk driving is one of the important factors causing current road traffic accidents. Therefore, in order to reduce the loss caused by drunk driving and personal safety accidents, the intelligent monitoring system to prevent drunk driving has become the focus of all circles of research. In this regard, based on the single chip computer and transmission safety technology, the vehicle anti-drunk driving system is deeply analyzed. Using STC89C52 single chip microcomputer technology, alcohol concentration detection sensor technology, digital tube display technology, voice technology to design the intelligent monitoring system flow chart to prevent drunk driving, in addition, combined with the intelligent monitoring system flow chart to prevent drunk driving, design alcohol sensor circuit, LED alarm circuit, LCD display circuit, etc. At the same time, Keil5 programming software is used to complete the writing of the overall program of the system, which reflects the system’s alcohol breath judgment, concentration collection, system alarm display, ventilation and voice broadcast of the current alcohol concentration, effectively avoiding the occurrence of drunk driving behavior of drivers. Finally, the design of the hardware circuit is combined with the software program, and the experiment and debugging work are carried out. When the alcohol concentration in the cab exceeds the parameters set by the user, the LED red indicator lights up, and the design alcohol concentration can be accurate to 1 decimal place, the alcohol concentration detection is normal, and the green indicator light is lit, and the feasibility of the system to prevent drunk driving has been verified by several experimental tests. The experiment shows that the intelligent monitoring system designed based on sensors to prevent drunk driving has an effective preventive effect on drunk driving, which not only realizes the rapid and accurate detection of the driver’s breath alcohol concentration, so as to avoid the occurrence of drunk driving behavior, which provides proactive protection for traffic safety and has certain practical value for the prevention of drunk driving.
Keywords:Prevention of drunk driving; Alcohol testing; Voice broadcast; Nixie display
目 录
摘 要
Abstract
第1章 绪论
1.1 选题背景及实际意义
1.2 国内外发展历程
1.3 本论文研究目标
第2章 系统设计方案
2.1 主要元器件选择
2.1.1 主控芯片选择
2.1.2 显示模块方案选择
2.2 整体设计方案
第3章 硬件设计
3.1 主控模块电路
3.2 酒精检测模块电路
3.3 语音输出模块模块
3.4 显示模块电路
3.5 继电器模块电路
3.6 报警模块电路
3.7 独立按键模块电路
3.8 指示灯模块电路
第4章 系统程序设计
4.1 编程软件介绍
4.2 系统主流程设计
4.3 独立按键
4.4 A/D模数转换子流程
4.5 数码管软件设计流程
第5章 实物制作与调试过程
5.1 实物总体设计
5.2 酒精浓度检测实物测试
第6章 结论
参考文献
致谢
附录
附录A: 原理图
附录B：PCB
附录C：主程序
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