基于STM32的防酒驾监测系统的设计

Design of the anti drunk driving monitoringl system based on STM32

基于单片机的酒驾监控系统在国内外受到了广泛关注与研究,其主要是通过集成单片机、酒精浓度传感器、A/D转换器及声光报警等模块,实现对驾驶员呼出气体中酒精浓度的实时监测与超标报警。目前研究重点关注高精度酒精传感器、数据融合技术、嵌入式系统开发以及系统的集成化与智能化等方面,而多数系统使用的51系列单片机其稳定性与准确性有待提高,系统功耗、通信速度以及环境适应性等都需要不断改进。根据系统易用性、可靠性以及安全稳定性等设计需求,设计了基于STM32的防酒驾监控系统,主要采用嵌入式系统进行开发与设计,包括硬件电路的功能设计与软件程序的调试与验证,并对系统整体各部分电路进行了具体的设计与功能分析,设计出满足需求的最小应用系统。软件采用最优化程序设计方法以使系统运行平稳。系统整体设计电路简化、操作方便、功能优化、成本较低。经过调试与检测,该系统能够精确检测酒精浓度,检测有效率为96.5%,误差不超过±5%,具有很好推广使用价值。

The drunk driving monitoring system based on single-chip microcontroller has received widespread attention and research both domestically and internationally.It mainly integrates modules such as single-chip microcontroller,alcohol concentration sensor,A/D converter,and sound and light alarm to achieve real-time monitoring and over limit alarm of alcohol concentration in the driver's exhaled gas.At present,research focuses on high-precision alcohol sensors,data fusion technology,embedded system development,and system integration and intelligence.However,the stability and accuracy of the 51 series microcontrollers used in most systems need to be improved,and system power consumption,communication speed,and environmental adaptability need to be continuously improved.Based on the design requirements of system usability,reliability,and safety stability,the paper designs the drunk driving monitoring system based on STM32.The system is mainly developed and designed using an embedded system,including the functional design of hardware circuits and the debugging and verification of software programs.Specific design and functional analysis of each part of the system circuit are carried out to design the minimum application system that meets the requirements.The software adopts optimization programming methods to ensure smooth system operation.The overall design of this system is simplified,easy to operate,functionally optimized,and cost-effective.After debugging and testing,the system can accurately detect alcohol concentration with an effective rate of 96.5%and an error of no more than±5%,making it highly valuable for promotion and use.