The invention provides an urban traffic fine-grained flow prediction method and system based on multiple scales, and relates to the technical field of intelligent traffic, and the method comprises the steps: obtaining a plurality of flow distribution diagrams of the traffic data of a to-be-predicted city; constructing a fine-grained flow distribution diagram based on the flow distribution diagram, and scaling the fine-grained flow distribution diagram according to a set scaling factor to obtain a coarse-grained flow distribution diagram; performing high-level multi-scale spatial feature extraction on the coarse-grained flow distribution map, learning a spatial dependency relationship between a certain region of the city and a geographically close region and a remote region to obtain coarse-grained flow distribution feature maps of different scales, and decoupling the coarse-grained flow distribution feature maps of different scales to obtain a coarse-grained flow distribution feature map of different scales; complementary fusion of multi-scale spatial features is carried out on the decoupled different-scale coarse-grained flow distribution feature maps, and final region features are obtained; and predicting the urban traffic fine-grained flow by using the final regional characteristics.

    本公开提供了基于多尺度的城市交通细粒度流量预测方法及系统,涉及智慧交通技术领域,包括获取待预测城市的交通数据的多幅流量分布图;基于所述流量分布图构造细粒度流量分布图,将所述细粒度流量分布图根据设定的放缩因子进行放缩获得粗粒度流量分布图;对所述粗粒度流量分布图进行高层多尺度空间特征提取,对城市某区域与地理相近区域和远程区域间的空间依赖关系进行学习,得到不同尺度粗粒度流量分布特征图,对不同尺度粗粒度流量分布特征图进行解耦,再将解耦后的不同尺度粗粒度流量分布特征图进行多尺度空间特征的互补融合,获取最终区域特征;利用所述最终区域特征预测城市交通细粒度流量。


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    Titel :

    Urban traffic fine-grained flow prediction method and system based on multiple scales


    Weitere Titelangaben:

    基于多尺度的城市交通细粒度流量预测方法及系统


    Beteiligte:
    GONG YONGSHUN (Autor:in) / YUAN SHILU (Autor:in)

    Erscheinungsdatum :

    2024-01-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G06V



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