The invention discloses a highway tunnel active early warning method and system based on dangerous driving behaviors. The system comprises an acquisition module and a projection module. Firstly, an obtaining module obtains the driving speed of a dangerous driving vehicle, the interpretation time of a driver for a warning mark, the visual half angle of a visual cone angle of the driver and the height between the human eyes and the highest point of effective information of the warning mark. And then, the projection module calculates the shortest visual distance of the driver capable of receiving the warning mark according to the forming speed, the interpretation time, the visual half angle and the height. After the shortest visual distance is calculated, the projection module can determine the visual distance range of the warning mark according to the shortest visual distance and the projection position of the warning mark. When the dangerous driving vehicle runs to the position where the distance between the dangerous driving vehicle and the projection position of the warning mark is larger than the shortest visual distance, the projection device can project the warning mark at the projection position.
本发明公开了一种基于危险驾驶行为的公路隧道主动预警方法及系统,系统包括获取模块和投影模块。首先,获取模块获取危险驾驶车辆的行车速度,以及驾驶员对于警示标识的判读时间、驾驶员视觉圆锥角的视觉半角和人眼与警示标识的有效信息最高点之间的高度。然后,投影模块根据形成速度、判读时间、视觉半角和高度计算得到驾驶员能够接受警示标识的最短可视距离。在计算得出最短可视距离后,投影模块可以根据最短可视距离和警示标识的投影位置确定警示标识的可视距离范围。当危险驾驶车辆行驶到与警示标识的投影位置之间的距离大于最短可视距离的位置处时,投影设备即可在投影位置处投影出警示标识。
Road tunnel active early warning method and system based on dangerous driving behaviors
基于危险驾驶行为的公路隧道主动预警方法及系统
2024-02-02
Patent
Electronic Resource
Chinese
Early warning method and device for dangerous driving behaviors
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