The invention provides a regional multi-site unoccupied parking space prediction method. The method comprises the steps of obtaining available parking data in a prediction period and a historical period before the prediction period, preprocessing all available parking data, dividing the preprocessed historical available parking data into a training set and an evaluation set, and dividing the preprocessed prediction period available parking data into a test set, constructing a parking space prediction model based on a ConvLSTM-DN network structure, and determining a hyper-parameter combination of the ConvLSTM-DN model by using a grid search method, importing the training set and the evaluation set into the parking space prediction model with the determined hyper-parameter combination for training, and acquiring a trained parking space prediction model, and in the trained parking space prediction model, using the test set to obtain available parking data of the next period after the prediction period. The method not only considers the dynamic relationship of historical data of a single parking lot in time, but also considers the space influence between different parking lots, so that the prediction precision is high, and the method is easy to implement.

    本发明提供一种区域性多场点空余停车位预测方法,包括获取预测周期及其之前的历史周期内的可用停车数据;对所有可用停车数据进行预处理,并将预处理后的历史可用停车数据划为训练集、评估集,以及将预处理后的预测周期可用停车数据划为测试集;构建基于ConvLSTM‑DN网络结构的停车位预测模型,并使用网格搜索法确定ConvLSTM‑DN模型的超参数组合;将训练集和评估集导入已确定超参数组合的停车位预测模型中进行训练,得到训练好的停车位预测模型;在已训练好的停车位预测模型中,使用测试集,得到预测周期之后的下一周期的可用停车数据。实施本发明,不仅考虑了单个停车场历史数据时间上动态的关系,还考虑了不同停车场之间的空间影响,使得预测精度高且较易实现。


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    Title :

    Regional multi-site unoccupied parking space prediction method and system


    Additional title:

    一种区域性多场点空余停车位预测方法及系统


    Contributors:
    HU QIAN (author) / FENG YAJING (author) / TANG ZHENZHOU (author) / FAN JUNKAI (author)

    Publication date :

    2021-09-07


    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 / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / 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



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