The invention relates to a ship traffic flow basic diagram drawing method based on a microcosmic car-following theory, and the method comprises the following steps: S1, obtaining AIS data in a selected region, carrying out the preprocessing of the AIS data, and building a rectangular coordinate system in the region; s2, segmenting a single channel according to a division standard, and primarily screening the preprocessed AIS data; s3, drawing a ship trajectory diagram according to the conversion information, and screening effective ship following data pairs from the primarily screened AIS data; s4, drawing a speed-following distance basic diagram; s5, drawing a speed-density basic diagram; s6, drawing a speed-traffic volume basic diagram; and S7, drawing a traffic volume-density basic diagram. According to the method, the AIS data in the selected area is processed, the effective ship following data is screened out, the maritime traffic flow basic diagram is completely drawn according to the relation between the traffic flow characteristic parameters, and a reference basis is provided for traffic characteristics and traffic conditions of the water area.
本发明涉及一种基于微观跟驰理论的船舶交通流基本图绘制方法,包括以下步骤:S1、获取选定区域中的AIS数据,进行AIS数据预处理,并在区域上建立直角坐标系;S2、根据划分标准分割出单航道,对预处理后的AIS数据进行初筛;S3、根据转换信息绘制出船舶轨迹图,从初筛后的AIS数据中筛选出有效船舶跟驰数据对;S4、绘制速度—跟驰间距基本图;S5、绘制速度—密度基本图;S6、绘制速度—交通量基本图;S7、绘制交通量—密度基本图。本发明通过处理选定区域中的AIS数据,筛选出有效的船舶跟驰数据,根据交通流特征参数之间的关系,将海上交通流基本图绘制完整,对该水域的交通特征和交通状况提供参考依据。
Ship traffic flow basic diagram drawing method based on microcosmic car-following theory
一种基于微观跟驰理论的船舶交通流基本图绘制方法
21.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / 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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