面向无信号交叉口的车辆防碰撞预警系统

Vehicle Collision Warning System for Unsignalized Intersection

为改善车辆在通过无信号交叉口时交通事故频发的现状,本文设计研发出一种车辆防碰撞预警系统。本系统由采集子系统、核心处理子系统、车载预警子系统组成,采集子系统用于采集车型等基本信息,以及行驶速度等实时信息,核心处理子系统针对不同车型做出相应车辆行驶安全椭圆,预测车辆行驶轨迹,并根据各车辆的车辆行驶安全椭圆重合面积判定冲突等级,车载预警子系统则通过语音播报的形式,向驾驶人传递对应等级预警信息。本文所述系统能够为驾驶人预报潜在的冲撞风险,在乡村道路等情况复杂的交通条件下确保车辆的安全通行,具有广泛的应用前景。

ion:In order to improve the present situation that traf f ic accidents take place frequently when vehicles passing the unsignalized intersections,this paper put forward a kind of early warning system which can prevent col lisions among vehicles.This system is consist of acquisition subsystem,core processing subsystem and vehicle early warning subsystem,acquisition subsystem is used to collect basic information such as vehicle type and real-time information such as speed,core processing subsystem make corresponding vehicles traveling safety ellipse in the light of different vehicle types,forecasts vehicles’traveling routes,and determine the degree of collision according to the overlapped area of vehicles traveling safety ellipse among vehicles,vehicle early warning system passes on the corresponding grade’s early warning information to the drivers by voice.The system which introduced by this paper has the ability to predict potential risk of collision,ensure safety passage of vehicles when facing complex traff ic condition such as rural roads,has a wide application prospect.