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。
Yangtze river channel ship flow segmentation quantification method based on inflection point identification
一种基于拐点识别的长江航道船舶流量分段量化方法
2025-01-21
Patent
Electronic Resource
Chinese
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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