基于AVR单片机的智能避障小车设计  

Design of Obstacle Avoidance Robot Car Based on AVR MCU

作　　者：胡晓芳[1] 

机构地区：[1]黑龙江大学电子工程学院,黑龙江哈尔滨150080

出　　处：《自动化技术与应用》2014年第6期95-97,111,共4页Techniques of Automation and Applications

摘　　要：本文介绍了以ATmega128A单片机作为主控制器,以超声波测距传感器HC-SR04为主要测距元器件,以两驱动的步进电机小车作为主体,设计出智能避障小车系统。步进电机驱动器采用L297和L298构成的混合式步进电机控制器。软件部分采用模块化程序,将距离的测量、避障算法、步进电机控制分为几个子程序,综合后实现智能车的避障功能,获得了较好的效果。The design of an autonomous obstacle-avoiding robot car is introduced in this paper. Using the ATmega128A MCU chip as the control core of the robot car, the ultrasonic sensor HC-SR04 as the main components to measure distance, with two driven stepper motor car as a main body. L297 and L298 motor are used as a hybrid-type stepper motor driver controller. Software adopts modular design, the distance measurement, obstacle avoidance algorithm. Stepper motor control is divided into several subroutines. After synthesizing the combination of the function of obstacle avoidance, good experimental effect is obtained.

关 键 词：ATMEGA128 HC-SR04 步进电机小车 L297 L298驱动器 模块化程序 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]