基于防撞预警功能的图像式汽车行驶记录仪的设计

The Video Traveling Data Recorder Based on Function of anti-Collision Warning

本文设计了一种车载图像记录仪。采用三星S3C2410微处理器作为车载图像记录仪的硬件。本系统提出防撞预警系统纵向与侧向安全距离的数学模型,并确定了其中一些参数的取值。在微处理器的控制下,采用毫米波雷达和超声波传感器进行测距实现水平方向和垂直方向全方位的动态扫描,实时监测目标车辆与周围车辆的距离。当进入测量领域的车辆与目标车辆的距离达到设定的安全门限时,立即打开视频并进行语言报警,提醒驾驶员及时调整车辆的行进路线,进行相应的避让和其它处理。该仪器在汽车交通领域具有重要的应用价值。

A video drive recorder is developed in this paper.Based on the overall plan,the Recorder’s hardware is designed to use Samsung S3C2410 microprocessor.The paper proposes the mathematical model of longitudinal and lateral safe distance about anti-collision warning system and has confirmed the value of some parameters.Under the control of microcomputer,it uses millimeter wave radar and ultrasonic sensors to achieve 0mni directional vision monitoring,and measures out the location of the car and the distance with other vehicles in real-time.Opening the video and sound alarm remind driver to adjust vehicle route to avoid collision when the distance was over threshold.The Recorder has significant application values in vehicle traffic field.