ABSTRACT
Along with social progress and technological development, a variety of
high-tech began to appear in front of people, as a man should keep up with the pace
of engineering times, the times and innovate. When it comes to high-tech, we should
be the most contact with the car, but also the majority of the boys are more concerned
about the topic. Proposed the concept of intelligent vehicle to the automotive industry
also brought opportunities and challenges. Intelligent car is bound to be the future
trend of the development of the automobile industry, in this context, we carried out a
study of microcontroller-based obstacle avoidance smart car. China, as a scientific
and technological power, in the automotive sector has also been studied in depth,
although we first in the automotive sector and abroad for the purposes there is a gap,
but we continue to study through science and technology, will be beyond their. In this
case, the design of the intelligent car obstacle avoidance makes sense. Although we
do is the most simple, basic design, but for many people it can open a window and let
them come in, contribute to a future of technological development in China.
Based infrared detection of black lines and the road obstacles, and use a STC89
C52 MCU as the controlling core for the speed and direction, A electronic drived, wh
ich can automatic track and avoid the obstacle, was designed and fabricated. In which,
the car is drived by the L298N circuit, its speed is controlled by the output PWM sig
nal from the STC89C52.
Key Words:Smart Car; STC89C52 MCU; L298N; Infrared Emitting Diode
