本科论文目 录摘 要...................................................................................................................IAbstract................................................................................................................II引 言...............................................................................................................31 系统总体架构....................................................................................................61.1 方案设计与选择.......................................................................................61.2 系统架构设计...........................................................................................61.3 系统器件选择...........................................................................................72 系统硬件设计....................................................................................................92.1 单片机外围电路设计...............................................................................92.2 LCD1602 液晶显示电路设计................................................................122.3 短信模块电路设计.................................................................................142.4 GPS 模块电路设计................................................................................142.5 电源与按键控制电路设计.....................................................................153 系统软件流程设计..........................................................................................163.1 系统总体流程.........................................................................................163.2 GPS 模块通信子程序设计....................................................................173.3 液晶显示子程序设计.............................................................................173.4 按键子程序设计.....................................................................................193.5 SIM900A 模块通信子程序设计.....
