The invention discloses a Yangtze River channel ship flow segmentation quantification method based on inflection point identification. The method comprises the following steps: abstracting a Yangtze River channel into a broken line by adopting a method of extracting a center line and generating a break point; the positions of the ships are associated with the positions of the Yangtze River channels, the position areas of the ships in the Yangtze River channels are judged, and mapping track data of the ships sorted according to time are obtained; according to the mapping trajectory data of each ship sorted according to the time, inflection point trajectory data of each ship sorted according to the time are obtained, wherein inflection points comprise a starting point, a turning point where the ship steers and an arrival point; and traversing the inflection point trajectory data of all ships in the Yangtze River channel within a preset time, analyzing to obtain the number of ships passing through each position area of the Yangtze River channel, and calculating to obtain the ship traffic flow of the Yangtze River channel. According to the method, the ship traffic flow in each 2km area in the Yangtze River channel can be quantified, and an important reference is provided for shipping safety, channel maintenance and ship dispatching of the Yangtze River channel.

    本发明公开了一种基于拐点识别的长江航道船舶流量分段量化方法,包括:采用提取中心线再生成折点的方法将长江航道抽象为一条折线;将船舶位置与长江航道位置相关联,判定船舶在长江航道内的位置区域,得到每艘船舶按时间排序的映射轨迹数据;根据每艘船舶按时间排序的映射轨迹数据得到每艘船舶按时间排序的拐点轨迹数据,拐点包括出发点、船舶发生转向的拐弯点以及到达点;遍历预设时间内所有长江航道内的船舶的拐点轨迹数据,分析得到长江航道每一位置区域所通过的船舶数量,计算得到长江航道的船舶交通流量。本发明能够量化长江航道内每2km区域的船舶交通流量,为长江航道的航运安全、航道维护及船舶调度提供了重要参考。


    Access

    Download


    Export, share and cite



    Title :

    Yangtze river channel ship flow segmentation quantification method based on inflection point identification


    Additional title:

    一种基于拐点识别的长江航道船舶流量分段量化方法


    Contributors:
    CHEN YANMING (author) / CUI YUE (author) / CHEN YIHENG (author) / CAI XINYU (author) / YIN CHANGGUI (author) / LI GUOLI (author) / CHEN YAO (author) / XIA JIAKANG (author) / JIANG MIAOSEN (author) / ZOU XINCAN (author)

    Publication date :

    2025-01-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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




    Yangtze river trunk line LNG tank container transport ship

    YAO ZHIHENG / YAO FENG | European Patent Office | 2022

    Free access

    SPACECRAFT ELECTRIC PROPULSION AT AN INFLECTION POINT

    Frongello, Brian R. / Hoskins, W. A. / Cassady, R. J. et al. | TIBKAT | 2021


    Statistical Analysis of Ship Collision Accidents in the Yangtze River

    Zhang, Yun / Sang, Lingzhi / Yang, Shanli | IEEE | 2019


    Spacecraft Electric Propulsion at an Inflection Point

    Frongello, Brian R. / Hoskins, W A. / Cassady, R J. et al. | AIAA | 2021