项目实训报告

目 录

1.1 项目概述····················································································· 1 1.2 设计要求····················································································· 1 1.3 系统设计····················································································· 1

1.3.1 设计方案··········································································· 2 1.3.2 知识点·············································································· 2 1.4 硬件模块介绍··············································································· 2

1.4.1 STC89C52RC单片机······························································ 2 1.4.2 电机驱动L293D·································································· 3 1.4.3 寻迹模块············································································ 4 1.4.4 避障模块··········································································· 5 1.4.5 电源模块············································································ 5 1.5 机械系统设计··············································································· 5 1.6 硬件设计····················································································· 5

1.6.1 小车工作原理····································································· 5 1.6.2 电路框图设计···································································· 5 1.6.3 知识点 ··············································································6 1.6.4 元件清单··········································································· 6 1.6.5 信号检测模块设计·······························································7 1.7 软件设计····················································································· 9

1.7.1寻迹避障程序······································································ 9