DSRC-based rear-end collision warning system - An error-component safety distance model and field test
DSRC-based rear-end collision warning system - An error-component safety distance model and field test
复制标题
基于DSRC的追尾碰撞预警系统——误差分量安全距离模型及现场测试
DOI：
10.1016/j.trc.2019.08.002
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Khattak Asad J
中科院分区：
文献类型：
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作者：
Zhao Xiangmo;Jing Shoucai;Hui Fei;Liu Ronghui;Khattak Asad J
专用短程通信（DSRC）技术可以为驾驶员提供超出正常视野范围的其他车辆的信息，并支持开发追尾碰撞预警系统（ReCWS）等驾驶支持系统。然而，通信延迟和GPS误差等技术限制会影响基于dsrc的ReCWS的精度。本文提出了一种明确表示DSRC技术功能规范的ReCWS设计，包括描述信息传输过程的传输延迟规范和用于表示GPS误差和信息传播延迟影响的误差分量安全距离规范。提出了三种具有不同减速要求的碰撞预警策略。该系统由现成的DSRC和移动技术组装而成，可以很容易地安装在测试车辆上。为了测试所提出的ReCWS的有效性，我们在测试轨道上运行了各种受控场景。结果表明，该方法具有较高的预警精度。这些现场测试结果也为未来基于dsrc的ReCWSs的研究和设计提供了校准的系统参数值。
Dedicated short-range communication (DSRC) technology can provide drivers with information about other vehicles that are beyond the normal range of vision and enables the development of driving support systems such as the rear-end collision warning system (ReCWS). However, technology constraints such as communication delays and GPS error affect the accuracy of a DSRC-based ReCWS. This paper proposes a ReCWS design that explicitly represents functional specifications of DSRC technology, including transmission delay specifications that describe the information transmission process and an error-component safety distance specification used to represent the effect of GPS error and the information propagation delay. We propose three collision warning strategies each with different deceleration requirements. The system is assembled with off-the-shelf DSRC and mobile technology that can be readily installed into test vehicles. To test the effectiveness of the proposed ReCWS, we ran a variety of controlled scenarios on a test track. The results show a high degree of warning accuracy. These field test results also provide calibrated system parameter values for future studies and designs of DSRC-based ReCWSs.