Self-driving cars combine a variety of sensors to perceive their surroundings. Advanced control systems in the cars will encode sensory information to identify appropriate routes, obstacles and relevant signage. In particular, road line tracking is one of important progresses in self-driving car for future transportation. In conventional, line in the road is tracked based on the near-infrared photo-detector. The target of this paper is to present a new approach in line tracking where an UV photosensor was utilized. OLED and phototransistor firstly fabricated using organic materials. A suitable encoder circuit and PID controller then designed and implemented in to a model auto-car. The auto-car was successfully tested in University road circuit. The sensor present here is not only to demonstrate a new approach in line tracking but also to bring a lower cost sensor, leading to reduce the total costs of auto-car. |
