ABSTRACT
Smart car, also known as robotic cars, further development of driverless car is an automatic
vehicle, it is able to satisfy human conventional automobile transport capacity, but also carries
the modern advanced technology to achieve automatic control. As a smart car, it is able to
perceive their environment and navigation, without human input. Mainly exists as a prototype
robot car, but it is likely in the near future to become more widespread.
The system uses the car as a model, the choice of MSP430F169 microcontroller-based
controller, external links L298N driver chip type driven by a high speed motor with gear box do
retest powered, flexible control the car forward and backward, complete automatic control
functions, the use of DC motor complete motion system monitoring the car forward, backward,
acceleration, deceleration and cornering capabilities, to achieve the purpose of precise
positioning, coupled with the use of ultrasonic ranging sensors to achieve this function; using
infrared tube to complete the car automatically tracing the detection function; using
photosensitive speed photodiode to complete the function. Plus the DC motor, microcontroller
and other devices interconnected to complete the car intelligent motion detection function, to
achieve obstacle avoidance, automatic tracking, speed, distance calculation function. The system
is based on reliable hardware and software design based on realization of the car in the road and
detect and precise control of the detection process. Simple circuit structure of the system,
stability, strength accuracy.
Keywords Msp430 microcontroller Sensor DC motor Photodiode
