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摘 要
简易自动行走汽车是移动式机器人的重要组成部分，本设计通过不断检测各个模块的传感器的输入信号，利用红外对管检测黑线实现循迹,超声波传感器测距实现避障，采用存储空间较大的STC89C51作为主控制芯片，电动车电机驱动采用L298N芯片，根据内置的程序分别控制简易自动行走汽车左右两个直流电机运转，实现简易自动行走汽车自动识别路线，能较有效的控制其在碰上障碍物时能转弯角度及循迹行驶。本设计结构简单，较容易实现，在一定程度上体现了智能。
关键词：简易自动行走汽车；STC89C51单片机； L298N；超声波传感器；红外对管
ABSTRACT
Simple automatic walking vehicle is an important part of mobile robot. This design uses infrared tube to detect black line and ultrasonic sensor to avoid obstacle by constantly detecting the input signal of sensor of each module.The STC89C51 with large storage space is used as the main control chip, the electric vehicle motor is driven by L298N chip, and according to the built-in program, the two DC motors running on the left and right of the auto walking vehicle are respectively controlled.It can realize the automatic identification of the automobile and control the turning angle and track when it meets the obstacle effectively.The structure of the design is simple and easy. Realization, to a certain extent reflects the intelligence.
Keywords: simple automatic walking vehicle STC89C51 single chip microcomputer; L298N; Ultrasonic sensor; Infrared tube
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