Abstract. Aiming at the problem of more and more traffic accidents which are caused by the driver behaviors, this paper designs a lane departure warning system based on the ADSP-BF561 processor. Vision sensor is used to capture road images, while the driving parameters are collected by the microprocessor. The lane marking detection speed can be more than 25 frames per second. The system is equipped with the test vehicle for hundreds of kilometers on highway, and the results show that this system has a better efficiency and feasibility.
IntroductionWith a large increase of the vehicles all over the world, the traffic transportation safety problems have attracted more and more people's extensive attention. According to statistics, 80% of the traffic accidents were caused by the driver's subjective factors, such as driver distraction, negligence, and fatigue [1]. If the warning is given one second ahead of danger, 90% of traffic accidents can be avoided [2]. Thus, reducing traffic accidents caused by the driver factors is the focus of the transportation security. On one hand, drivers need to strengthen their literacy of traffic rules; on the other hand, technical measures should be taken on the driver's dangerous behavior for early warning. The lane departure warning system installed on the vehicle is a very effective way [3].The traditional lane departure warning systems are based on IPC platforms, which are not only bulky and costly, but also not suitable for marking. In this paper, we design a lane departure warning system based on the vision sensor and ADSP-BF561 processor, which has a small, high processing speed. The system will not only be able to solve some illegal behaviors, such as driving across the lane, but also can provide detailed information for the traffic management department to restore the scene of the accident [4].