The embodiment of the invention provides a traffic early warning method and device based on a space-time dynamic network. The method comprises the following steps: acquiring multi-source traffic data; registration of time dimension and space dimension is carried out on the multi-source traffic data, and feature coding is carried out to obtain coded data; performing normalization processing on the encoded data to obtain normalized visual data, point cloud data and communication data, and creating an explicit physical diagram according to the normalized visual data, point cloud data and communication data; according to the normalized visual data, the normalized point cloud data and the normalized communication data, potential information is mined, and an implicit semantic graph is created; according to the explicit physical graph and the implicit semantic graph, time sequence dependence features are extracted through space graph convolution, time convolution and causal expansion convolution, semantic features are obtained through space-time position coding and sparse self-attention mechanism optimization, feature fusion is carried out, and fusion features are obtained; and determining traffic early warning information according to the fusion features. The prediction precision can be improved through acquisition and processing of various data.
本申请实施例提供的一种基于时空动态网络的交通预警方法及装置,方法包括:获取多源交通数据;对多源交通数据进行时间维度和空间维度的配准,并进行特征编码,得到编码后的数据;对编码后的数据进行归一化处理,得到并根据归一化后的视觉数据、点云数据和通信数据,创建显式物理图;根据归一化后的视觉数据、点云数据和通信数据,挖掘潜在信息,并创建隐式语义图;根据显式物理图和隐式语义图,通过空间图卷积、时间卷积和因果膨胀卷积,提取时序依赖特征,并通过时空位置编码和稀疏自注意力机制优化,得到语义特征,从而进行特征融合,得到融合特征;根据融合特征确定交通预警信息。可以实现通过多种数据的获取和处理,提高预测精度。
Traffic early warning method and device based on space-time dynamic network
一种基于时空动态网络的交通预警方法及装置
30.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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