The invention relates to the technical field of traffic control, and particularly discloses a smart traffic flow prediction system based on big data analysis, which comprises a data acquisition system and a flow prediction system, and is characterized in that the data acquisition system acquires the number of vehicles and driving direction data through multiple channels, integrates weather information and event information, ensures that the data is comprehensive and updated in real time, and transmits the data to the traffic flow prediction system; the collected data is stored in a cloud database for subsequent analysis; according to the method, the importance of different regions is calculated through the graph attention convolutional network to capture the spatial-temporal characteristics, the problem of over-extrusion of a graph neural network is solved, a deeper network model is constructed, a semantic adjacency matrix is introduced to learn the spatial correlation of local regions and semantic information in a global space, and the spatial-temporal characteristics are captured. Traffic flow prediction from a local area to a global scale is realized, a causal relationship between long and short time in traffic flow data is captured by using a time causal convolutional network, and local and global spatial-temporal correlation in the traffic data is synchronously captured.
本发明涉及交通控制技术领域,具体公开了基于大数据分析的智慧交通流量预测系统,包括:数据采集系统和流量预测系统,数据采集系统通过多种渠道获取车辆数量、行驶方向数据,集成天气信息、事件信息,确保数据全面且实时更新,采集的数据将被存储在云数据库中,以便后续分析;本发明通过图注意力卷积网络计算不同区域的重要性来捕捉时空特征,解决了图神经网络过挤压问题,从而构建更深层次的网络模型,引入语义邻接矩阵来学习局部区域的空间相关性和全局空间中的语义信息,实现从局部区域到全局规模的交通流量预测,并且使用时间因果卷积网络来捕获交通流量数据中长短期时间之间的因果关系,同步捕获交通数据中局部和全局的时空相关性。
Intelligent traffic flow prediction system based on big data analysis
基于大数据分析的智慧交通流量预测系统
10.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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