计算机工程 ›› 2019, Vol. 45 ›› Issue (2): 53-57,63.doi: 10.19678/j.issn.1000-3428.0049258

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基于碰撞点时间估计的车辆碰撞预警算法

张爱平1,2,李德敏1,2,张光林1,2,郭畅1,2   

  1. 1.东华大学 信息科学与技术学院,上海 201620; 2.数字化纺织服装技术教育部工程研究中心,上海 201620
  • 收稿日期:2017-11-10 出版日期:2019-02-15 发布日期:2019-02-15
  • 作者简介:张爱平(1992—),男,硕士研究生,主研方向为车载自组织网络、车辆碰撞预警;李德敏,教授、博士;张光林,副教授、博士;郭畅,博士研究生。
  • 基金项目:

    国家自然科学基金(71171045,61301118,61772130)。

Vehicular Collision Warning Algorithm Based on Time to Collision Point Estimation

ZHANG Aiping 1,2,LI Demin 1,2,ZHANG Guanglin 1,2,GUO Chang 1,2   

  1. 1.College of Information Science and Technology,Donghua University,Shanghai 201620,China; 2.Engineering Research Center of Digitized Textile and Fashion Technology,Ministry of Education,Shanghai 201620,China
  • Received:2017-11-10 Online:2019-02-15 Published:2019-02-15

摘要:

针对十字路口处的车辆碰撞现象,提出一种基于碰撞点时间估计的车辆碰撞预警算法,以降低交通事故发生概率,提高十字路口处车流的流畅程度。在考虑交通信号灯控制的情况下,分析十字路口处车辆碰撞的不同场景,并给出碰撞点位置和车辆到达碰撞点时间的估计方法。MATLAB实验结果验证了该算法的正确性和可行性,同时表明车辆速度和位置的变化都会对车辆碰撞情况造成影响。

关键词: 碰撞预警算法, 十字路口, 碰撞点, 碰撞点时间, 车载自组织网络

Abstract:

Aiming at the collision of vehicles at intersection,a vehicular collision waring algorithm based on Time to Collision Point(TTCP) estimation is proposed to decrease the probability of traffic accidents and improve the smoothness of vehicular traffic flow at the road intersection.Different scenarios are analyzed for vehicular collision at the road intersection,which is influenced by the operation of traffic lights.The formulae of the collision point coordinate and TTCP are proposed for different cases respectively.The correctness and feasibility of the theory are verified by using MATLAB experimental simulation,and the results also show that the change of vehicle speed and position affects the vehicle collision.

Key words: collision warning algorithm, intersection, collision point, Time to Collision Point(TTCP), vehicular ad-hoc network

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