基于单片机的步进电机驱动智能小车.doc

　基于单片机的步进电机驱动智能小车 基于单片机的步进电机驱动智能小车研制 基于单片机的步进电机驱动智能小车研制 摘 要 我们本次设计采用ATMEL公司中的AT89S51单片机为控制核心，在最小 系统的基础上，通过对外围传感器信号和控制按键的检测，控制步进电机的 正转、反转、加速和停止使智能小车可以循着黑线自动循迹，碰到障碍物可 以合理的避障，探测到金属可以发出报警信号，从而使智能小车实现合理行 进。 关键词:AT89S51单片机、智能小车、步进电机、自动循迹、避障、探测金属 等 ABSTRACT We this design USES the ATMEL company AT89S51 as control core, the smallest system of basis, through peripheral sensor signal and the control buttons detection, the control of the stepper motor are turning, inversion, acceleration and stop make intelligent car can follow the black line automatic tracing, encounter obstacles can follow reasonable obstacle-avoidingand detecting metal can alarm-immediately, thus make intelligent car realize reasonable progression. Keywords: AT89S51, intelligent car, stepping motor, automatic follow tracing, obstacle avoidance, detect metal, etc - 1 - 基于单片机的步进电机驱动智能小车研制 目 录 1 引 言 ................................................................................................................. 3 2 系统设计 ........................................................................................................... 4 2.1 设计要求 ............................................................................................................................................... 4 2.2 总体设计方案 ....................................................................................................................................... 4 2.2.1 系统总体设计方案 .................................................................................................................... 4 2.2.2 基本模块设计方案 .................................................................................................................... 5 3 单元硬件电路设计 ............................................................................................ 7 3.1 电源电路模块 ....................................................................................................................................... 7 3.2 光电寻迹模块 .............................................