目录一、设计的背景和意义...........................................................................................................1二、设计方案的论证和确定...................................................................................................1（一）设计要求分析...........................................................................................................1（二）设计方案确定...........................................................................................................1三、设计过程...........................................................................................................................3（一）设计原理...................................................................................................................3（二）主要器件选型...........................................................................................................4（三）硬件结构设计...........................................................................................................9（四）软件控制设计.........................................................................................................13（五）相片.........................................................................................................................22四、调试过程.......................................................................................................................24（一）仿真调试.................................................................................................................24（二）实物演示.................................................................................................................24五、设计创意说明和总结...................................................................................................27六、参考文献.......................................................................................................................28七、致谢...............................................................................................................................29一、设计的背景和意义背景：目前对酒精测试