The invention discloses a channel navigation safety early warning method based on AIS data. According to the method, a navigation channel is divided into a plurality of continuous legs along the natural direction, ship AIS data in the legs are collected, and the ship AIS data in the legs are connected with a computer, so that the computer can periodically acquire the ship AIS data of each leg. Leg ship traffic flow data are extracted from the AIS data of the ships in the leg, and a leg ship traffic flow data storage table and a navigation safety early warning state table are established. After the information is updated, data in the navigation safety early warning state table is cleared, data units in the leg ship traffic flow data storage table are searched one by one according to the received ship AIS data and the updated leg ship traffic flow data table, and key upstream and downstream leg ship traffic flow data meeting conditions are determined; and according to the data currently collected by the key upstream and downstream legs, calculating a navigation safety risk, judging a navigation safety early warning state, and writing the navigation safety early warning state into a navigation safety early warning state table.

    本发明公开了一种基于AIS数据的航道通航安全预警方法。该方法把航道沿自然走向分为连续的若干航段,收集航段内船舶AIS数据,与计算机连接,使计算机能周期性获取各航段的船舶AIS数据。从航段内船舶AIS数据提取航段船舶交通流数据,建立航段船舶交通流数据存储表和通航安全预警状态表。在更新信息后,清除通航安全预警状态表内数据,根据收到的船舶AIS数据,更新航段船舶交通流数据表,逐个搜索航段船舶交通流数据存储表中各数据单元,确定符合条件的关键上下游航段船舶交通流数据,并根据关键上下游航段当前采集的数据,计算通航安全风险,判断通航安全预警状态,写入通航安全预警状态表。


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    Title :

    AIS data-based channel navigation safety early warning method


    Additional title:

    一种基于AIS数据的航道通航安全预警方法


    Contributors:
    HUANG YONGMIN (author) / WANG YANG (author)

    Publication date :

    2022-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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