The invention relates to a vehicle-cloud integrated wet and slippery road vehicle driving risk early warning method and system, and the method comprises the following steps: obtaining the forward video data of a vehicle, recognizing the type of a current driving road according to the forward video data through a road segmentation and road classification multi-task model, and carrying out the early warning of the driving risk of the vehicle through a pre-established road adhesion coefficient reference table. A road adhesion coefficient is obtained and uploaded to the cloud; continuously counting global road adhesion coefficients, establishing a road adhesion coefficient fusion model, and fusing the global road adhesion coefficients through road section matching and introduction of time difference factors to generate a wet and slippery road map; determining an early warning area corresponding to any wet and slippery road section on the wet and slippery road surface map through a dynamic calculation method; and for a wet and slippery road section, phase plane stability boundaries of different types of vehicles are calculated, typical driving control behaviors are simulated, instability risks are evaluated, and early warning information is sent out. Compared with the prior art, the method achieves the observation of the wet and slippery road surface, and has the advantages of high early warning precision, high pertinence and the like.

    本发明涉及一种车云一体的湿滑路面车辆行驶风险预警方法和系统,包括以下步骤:获取车辆的前向视频数据,通过路面分割和路面分类多任务模型,根据前向视频数据识别当前行驶道路的类型,通过预先建立的路面附着系数参照表,得到路面附着系数并上传至云端;持续统计全域的路面附着系数,建立路面附着系数融合模型,通过路段匹配并引入时差因子,融合全域的路面附着系数,生成湿滑路面地图;通过动态计算方法,确定湿滑路面地图上任意湿滑路段对应的预警区域;针对湿滑路段,计算不同类型车辆的相平面稳定边界,模拟典型行车操控行为,评估失稳风险并发出预警信息。与现有技术相比,本发明实现了对湿滑路面的观测,具有预警精度高、针对性强等优点。


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    Title :

    Vehicle-cloud integrated wet and slippery road vehicle driving risk early warning method and system


    Additional title:

    一种车云一体的湿滑路面车辆行驶风险预警方法和系统


    Contributors:
    YU RONGJIE (author) / JI BINGDONG (author) / CHEN RENYUAN (author)

    Publication date :

    2025-04-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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