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基于车车通信的换道超车辅助系统设计与实现

, PP. 120-124

Keywords: 交通工程,车车通信,IEEE802.11p,换道超车,系统设计

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Abstract:

针对现有换道超车辅助系统的不足,提出了基于车车通信的换道超车辅助系统.以嵌入式系统为核心,使用了IEEE802.11p无线通信技术.对系统的硬件架构和软件算法进行了描述,使用2台试验车于同济大学校园内对系统进行了实地测试,分析了换道超车过程中的时间和速、时间和转速之间变化的相互关系.试验得出在装载辅助系统情况下,2车的平均速度相对于正常情况下分别提高了17.32%和13.92%,速度标准差分别减少了5.34%和49.43%.2车转速分别提高了24.91%和12.31%,转速标准差分别减少了50.06%和48.62%.测试结果表明了该换道超车辅助系统在实地测试中可行,且能提高车辆的行驶速度.

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