计算机与现代化 ›› 2014, Vol. 0 ›› Issue (10): 1-4.doi: 10.3969/j.issn.1006-2475.2014.10.001

• 计算机仿真 •    下一篇

基于视频检测的自动避碰时刻研究

  

  1. 1.国网陕西省电力公司信息通信公司,陕西西安710004;2.国网渭南供电公司信息通信公司,陕西渭南714000
  • 收稿日期:2014-06-16 出版日期:2014-11-03 发布日期:2014-11-05
  • 作者简介:田双(1985-),女,陕西西安人,国网陕西省电力公司信息通信公司工程师,硕士,研究方向:智能交通系统,计算机软件; 刘敬培(1984-),女,国网渭南供电公司信息通信公司工程师,硕士,研究方向:计算机软件。
  • 基金资助:
    国家自然科学基金资助项目(50522204)

Study of Auto Evasion Time Based on Video Detection

  1. 1. Information and Communication Company, State Grid Shaanxi Electric Power Company, Xian 710004, China;
    2. Information and Communication Company, State Grid Weinan Power Supply Bureau, Weinan 714000, China
  • Received:2014-06-16 Online:2014-11-03 Published:2014-11-05

摘要: ]对合适的自动避碰时刻进行研究,通过对交通场景进行俯视拍摄的方法获得10.5 h真实的冲突视频录像,借助视频检测技术提取并分析808个冲突避碰行为样本,基于交通冲突技术的基本理论得出2点结论:1)群体驾驶人何时实施避碰取决于至碰时间TTC;2)避碰时刻与临界时刻之间具有至少1 s的裕量。将自动避碰系统的制动时刻设定在上述2个时刻之间,足够现有技术实现自动避碰任务。

关键词: 视频检测, 自动避碰系统, 交通冲突技术, 至碰时间, 避碰行为, 避碰时刻, 临界时刻, 时间裕量

Abstract: The purpose of the study is to find out the appropriate evasion time of collision avoidance system. By using the video cameras mounted on tall structures to acquire 10.5 hour video records of traffic streams at no-signal intersection, the thesis extracted and analyzed 808 samples with the aid of video detection. Based on the traffic conflict technology, conclusions were drawn as follows: 1) the basis for avoidance decision is time to collision (TTC); 2) the activation time of CAS should be restricted within a definite range, whose upper limit is the evasion time of normal driving and lower limit is the critical time.

Key words: video detection, collision avoidance system, traffic conflict technology, TTC, collision avoidance behavior, evasion time, critical time, avoidance margin

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