Design and implementation of fuzzy logic based autonomous car for navigation in unknown environments

The paper describes the design and implementation of an intelligent autonomous vehicle that can navigate without human operator in unknown environments. Equipped with ultrasonic sensors, GPS receiver and camera, the vehicle can reach the destination by avoiding the obstacles in its way and followings the lanes on roads. Ultrasonic sensor and GPS receiver are interfaced to AT89C52 microcontroller which implements hurdle avoidance and goal reaching behavior at low level while camera is interfaced to PC for road following task at higher level. The designed vehicle has modular structure and more modules can be added without much complexity.