The invention discloses a signal intersection driving risk intelligent early warning method and system considering the influence of large vehicles. The method comprises the following steps: selecting a high-risk signal intersection; constructing a high-risk signal intersection risk field model, and calibrating static parameters of the model by historical trajectory data; monitoring entering and exiting vehicles at the high-risk signal intersection, when a large vehicle is identified, extracting target data of the large vehicle and surrounding vehicles in real time, and calibrating dynamic parameters of the model based on the shielding condition of the large vehicle, the blind area of the large vehicle and the target data; and inputting the target data into the high-risk signal intersection risk field model in real time to calculate a high-risk signal intersection risk field, calculating a high-risk risk discrimination index according to the high-risk signal intersection risk field, and if the high-risk risk discrimination index is greater than a preset threshold, performing safety early warning. According to the method, high accident risks caused by blind areas of large vehicles and shielding of surrounding vehicles are fully considered, and the safety level of the intersection can be accurately judged.
本发明公开了一种考虑大型车辆影响的信号交叉口行车风险智能预警方法与系统,方法包括:选取高危信号交叉口;构建高危信号交叉口风险场模型,以历史轨迹数据标定该模型的静态参数;监测高危信号交叉口的进出车辆,当识别到大型车辆时,实时提取大型车辆及其周边车辆的目标数据,基于大型车辆的遮挡情况、大型车辆盲区和目标数据,标定模型的动态参数;将目标数据实时输入高危信号交叉口风险场模型计算得到高危信号交叉口风险场,并根据高危信号交叉口风险场计算高危风险判别指标,若高危风险判别指标大于预设阈值则进行安全预警。本发明充分考虑到大型车辆盲区以及给周边车辆带来的遮挡所导致的高事故风险,能够准确判别交叉口安全水平。
Signal intersection driving risk intelligent early warning method and system considering large vehicle influence
考虑大型车辆影响的信号交叉口行车风险智能预警方法与系统
2024-03-29
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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