基于嵌入式的车辆偏离预警系统研究  

Research of vehicle departure alarm system based on embedded technology

作　　者：林广宇[1] 魏朗[1] 蹇小平[1] 

机构地区：[1]长安大学汽车学院,陕西西安710064

出　　处：《电子设计工程》2010年第8期26-28,32,共4页Electronic Design Engineering

基　　金：国家科技支撑计划项目(2007BAK35B01)

摘　　要：以嵌入式系统为平台对车辆驶离车道的预警进行研究。在采用改进的Hough变换对道路图像标识线识别的基础上,利用透视投影原理,完成车辆位置信息的重建,确定车辆在车道中的横向距离和横向偏转角,建立基于横向距离和横向速度的车辆偏离预警算法。车辆行驶实验表明,该算法能够对偏离车道的车辆给以准确的报警,并且充分考虑车辆的速度以及偏转角度对车辆偏离车道过程的影响。This paper studied a warning method of a vehicle running off the lane on the platform of embedded system. On the basis of road marking lines recognition using reformed Hough transform,vehicle location is reconstructed to determine vehicles lateral distance and lateral deflection angle by use of perspective projection. Vehicle departure alarm model is established based on lateral distance and deflection angle. Driving experiment results show that the method can eorrecdy warn the driver when driving off the lane and fully consider the effects of the vehicle velocity and deflection angles on its departure.

关 键 词：车辆偏离预警 车辆位置 嵌入式系统 道路标识线 

分 类 号：U471[机械工程—车辆工程]