The invention provides a hotspot path identification method and related equipment, and the method comprises the steps: obtaining vehicle operation data collected by a plurality of roadside sensors, and obtaining the travel time and initial trajectory of a target vehicle according to the vehicle operation data; calculating a travel threshold through the travel time, and carrying out travel division on the initial trajectory to obtain a plurality of path trajectories; constructing a topological road network comprising edges and network nodes according to the plurality of path tracks and the plurality of roadside sensors; inputting the vehicle operation data and the topological road network into a snake clustering model for clustering to obtain a membership matrix comprising a plurality of travel modes and a plurality of key nodes; correcting the number of vehicles passing through each edge by using a membership matrix to obtain a correction result, constructing a Steiner tree used for representing a path set connecting all key points in various travel modes, and identifying a hotspot path; therefore, hotspot path identification is carried out on the vehicle passing data with relatively sparse sensor distribution.

    本发明提供了一种热点路径识别方法及相关设备,包括:获取多个路侧传感器采集的车辆运行数据,并根据车辆运行数据获取目标车辆的行程时间和初始轨迹;通过行程时间计算出行阈值对初始轨迹进行出行划分,得到多条路径轨迹;根据多条路径轨迹和多个路侧传感器构建包括边和网络节点的拓扑路网;将车辆运行数据和拓扑路网输入蛇聚类模型进行聚类得到包括多种出行模式和多个关键节点的隶属度矩阵;利用隶属度矩阵对每条边的过车数进行修正,得到修正结果,构建用于表征在多种所述出行模式下连接所有关键点的路径集合的斯坦纳树并识别出热点路径;实现了针对传感器分布相对稀疏的过车数据进行热点路径识别。


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    Titel :

    Hotspot path identification method and related equipment


    Weitere Titelangaben:

    一种热点路径识别方法及相关设备


    Beteiligte:
    TANG JINJUN (Autor:in) / LIU FEIYANG (Autor:in) / XU XINGWEI (Autor:in) / LUO ZHONGBAO (Autor:in) / ZHOU SHENGZHAO (Autor:in) / ZHOU XIAOBO (Autor:in) / XUE HONGLI (Autor:in)

    Erscheinungsdatum :

    2023-08-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06V / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze



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    Freier Zugriff

    Experimental evaluation of hotspot identification methods

    Cheng, Wen / Washington, Simon P. | Elsevier | 2005



    A comparative analysis of hotspot identification methods

    Méndez, Álvaro Gómez | Online Contents | 2010


    Bayesian multiple testing procedures for hotspot identification

    Miranda-Moreno, Luis F. | Online Contents | 2007