为了辅助驾驶员安全行驶，设计了一种基于视觉信号提示的碰撞预警系统的人机交互界面（HMI），向驾驶员提供车辆周围的危险方位和程度的信息。用STISIM软件，把视频采集到的实际交通场景，转化为虚拟场景，设计了一种固定式驾驶模拟器，在该模拟器的试验平台上，由25名驾驶员进行测试，用问卷统计判断主观感受，用STISIM软件测量碰撞次数、速度、纵向加速度、侧向位移、即碰时间（TTC）等数据，来评价该HMI的有效性和用户接受度。结果表明：参试者对该人机交互界面具有积极的主观感受，该系统工作时，驾驶员的驾驶操作更为平稳，碰撞次数有所减低。%A human-machine-interface (HMI) was designed for an advisory colision warning system based on visual signal to help drivers to drive safely by the information about the orientation and the level of danger around vehicle. A ifxed driving simulator was built. Real trafifc scenarios were colected by using video cameras and then transformed into virtual scenarios of the simulator by STISIM software. The HMI was tested and evaluated on a platform based on driving simulator by 25 drivers. During the tests, drivers’ subjective attitudes were colected by using questionnaires and objective measures including the colision number, the average speed, the longitudinal acceleration, the lateral displacement and the time-to-colision (TTC), etc. by using STISIM. The results show that this design of HMI can achieve positive driver acceptance and this advisory system can help drivers adopt safer driving behaviors and then reduce the number of colisions.
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