蔽障循迹智能小车本科毕设论文.doc

312013年7月12日一、绪论.......................................................................41.1智能小车的作用和意义..................................................................4二、方案设计与论证................................................42.1总体方案设计...............................................................................42.2主控系统........................................................................................52.3传感器选择方案............................................................................62.4电机驱动芯片选择方案..................................................................62.5电机方案选择..................................................................................62.6电源方案选择..................................................................................7三、主要器件介绍.....................................................73.1STC89C52的介绍.........................................................................73.2L298N的介绍...............................................................................83.2.1L298N的引脚功能...................................................................................93.2.2L298N的运行参数...................................................................................103.2.3L298N的逻辑控制...................................................................................103.3TCRT5000的介绍........................................................................113.4LM339的介绍................................................................................123.5L7805CV和L7806CV的介绍.........................................................12四、硬件设计...............................................................144.1主控芯片STC89C52单片机最小系统板电路...........................144.2电机驱动模块电路..........................................................................154.3红外对黑线检测模块电路...............................................................164.4稳压电源电路...................................................................................18五、程序设计..............................................