Development and Empirical Study of an Intelligent Car's Line-Following and Obstacle-Avoiding Control System Based on the STC89C52 Microcontroller

Abstract

With the development of the electronics industry, intelligent small vehicles not only have been widely used in industrial intelligence, but also the products used in smart homes are increasingly favored by people. This group's design is an intelligent small vehicle based on STC89C52. It uses an infrared sensor module for tracking and an ultrasonic sensor module for obstacle avoidance, and transmits the measured data to the embedded microcontroller. The single-chip microcontroller processes the data and gives responses to control the operation of the motor to achieve the functions of tracking and obstacle avoidance. This automatic tracking and obstacle avoidance intelligent small vehicle uses the STC89C52 single-chip microcontroller as the microprocessor, adopts the TCRT5000 infrared sensor module for infrared tracking, adopts the HC-SR04 ultrasonic sensor module for ultrasonic obstacle avoidance, uses the L298N motor driver board and two DC speed motors to form the motor drive module, and uses four South Power batteries to form the power circu. This automatic tracking and obstacle avoidance intelligent small vehicle uses the STC89C52 single-chip microcontroller as the microprocessor, adopts the TCRT5000 infrared sensor module for infrared tracking, adopts the HC-SR04 ultrasonic sensor module for ultrasonic obstacle avoidance, uses the L298N motor driver board and two DC speed motors to form the motor drive module, and uses four South Power batteries to form the power circuit. Through experiments, the intelligent car can successfully follow black lines and avoid obstacles within a 20cm range, achieving the expected design goals.