The invention discloses an AIS information-based ship real-time accurate position acquisition method, which comprises the following steps of: 1) delimiting a detected leg, analyzing AIS data through acquired ship AIS information real-time data, and arranging trajectory data of all ships in the leg along with time change; 2) cleaning the acquired ship trajectory data, and removing dirty data to obtain an original data set; 3) filling real trajectory information data between points of each ship trajectory in the original data set to obtain a data training set containing input and label pairs; 4)performing sampling segmentation on the data training set in proportion, and dividing the data training set into a model training data set and a model verification data set; 5) performing ship real-time position model training on the ship model data training set by using the LSTM, and performing model verification by using the model verification data set to obtain a ship real-time position model,and 6) acquiring the real-time accurate position of the tested ship by using the ship real-time position model.

    本发明公开了一种基于AIS信息的船舶实时准确位置获取方法,该方法包含以下步骤:1)划定被检测航段,通过采集到的船舶AIS信息实时数据,解析AIS数据,并整理航段内的所有船舶随时间变化的轨迹数据;2)对采集到的船舶轨迹数据进行清洗,剔除脏数据,得到原始数据集;3)填充原始数据集中每条船舶轨迹点与点间的真实轨迹信息数据,得到含输入和标签对的数据训练集;4)对数据训练集按比例进行抽样分割,将数据训练集划分为模型训练数据集和模型验证数据集;5)使用长短时记忆网络LSTM对船舶模型数据训练集进行船舶实时位置模型训练,并使用模型验证数据集进行模型验证,得到船舶实时位置模型;6)使用船舶实时位置模型,对被测船舶实时准确位置进行获取。


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    Title :

    AIS information-based ship real-time accurate position acquisition method


    Additional title:

    一种基于AIS信息的船舶实时准确位置获取方法


    Contributors:
    NING WENLONG (author) / ZHOU JIAHAI (author) / LI DINGGUO (author) / TANG ZELIN (author) / WANG WEI (author) / CHEN XUAN (author) / CHEN LINGLING (author) / TONG QING (author)

    Publication date :

    2020-08-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06K Erkennen von Daten , RECOGNITION OF DATA / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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