本科毕业论文（设计）题 目：基于单片机的人数统计系统摘要本文设计了一个基于单片机的人数统计系统，他可以通过光电开关统计教室的人数，并把实时的人数在 LCD1602 液晶屏上显示，另该系统还配备了一个时间显示的功能，可显示当前的年、月、日、小时、分种、秒等时间信息，时钟芯片采纳的是 DS1302
DS1302 能存储时间信息，并且时间可以掉电保存
关键词 单片机； LCD1602；人数统计；DS1302AbstractThis paper designed a system based on single-chip microcomputer, the number of statistics, he can through the photoelectric switch statistic the number of the classroom, and the number of real-time in the LCD1602 display on the LCD panel, the system also equipped with another time display function, can display the current year, month, day,hours, minutes, seconds time information, such as clock chip USES is DS1302
DS1302time information can be stored, and time can be saved when power supply drop
Key words single chip microcomputer LCD1602 The number of statistics DS1302目 录 摘要1Abstrac
