The invention provides a real-time online traffic simulation method and system, and relates to the technical field of intelligent traffic, and the method comprises the steps: obtaining real-time traffic data, carrying out the multi-source data fusion processing, and determining real-time traffic signal data and real-time traffic state data; inputting the real-time traffic signal data and the real-time traffic state data into a traffic simulation model to determine a simulation result; and when the simulation result does not meet the preset precision requirement, checking and updating the traffic simulation model, including: adjusting the key parameters according to the deviation between the parameter default value and the parameter real-time calculation value of the traffic simulation model or the deviation between the parameter default value and the average value of the historical accumulated data, adjusting OD and path flow distribution in the traffic simulation model and numerical values of prediction model parameters, and carrying out simulation again according to the checked and updated traffic simulation model. The real-time data can be automatically accessed, the real-time simulation result is checked and updated, and the global real-time simulation precision is effectively improved.

    本发明提供了一种实时在线交通仿真方法及系统,涉及智能交通技术领域,包括:获取实时交通数据并进行多源数据融合处理,确定实时交通信号数据和实时交通状态数据;将实时交通信号数据和实时交通状态数据输入交通仿真模型确定仿真结果;当仿真结果不满足预设精度要求时,则进行交通仿真模型的校核更新,包括根据交通仿真模型的参数默认值和参数实时计算值的偏差或参数默认值和历史累积数据的平均值的偏差来调整关键参数,还调整交通仿真模型中的OD和路径流量分配和预测模型参数的数值,并根据校核更新后的交通仿真模型重新进行仿真。本发明可自动化接入实时数据,还对实时仿真结果进行校核更新,有效提升全局实时仿真精度。


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    Titel :

    Real-time online traffic simulation method and system


    Weitere Titelangaben:

    一种实时在线交通仿真方法及系统


    Beteiligte:
    ZHANG XIAOCHUN (Autor:in) / CHEN ZHENWU (Autor:in) / ZHOU YONG (Autor:in) / WU RUOQIAN (Autor:in) / XU YANQING (Autor:in) / LUO JIACHEN (Autor:in) / LIANG CHEN (Autor:in) / ZHANG JI (Autor:in)

    Erscheinungsdatum :

    2021-06-08


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS




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