The invention provides a travel time prediction method and system, and the method comprises the steps: firstly obtaining traffic data, carrying out the preprocessing, predicting the required vehicle speed between any two points in a road network based on a space-time attention network model according to the preprocessed data, calculating a shortest path between any two points in the road network through employing a shortest path algorithm, and carrying out the prediction of the travel time. And calculating the shortest time required between any two points according to the shortest path and the predicted vehicle speed, and finally displaying the shortest time required between any two points in the road network through an information board arranged on the expressway. The highway traffic efficiency can be effectively improved, the prediction precision is greatly improved, the use is convenient, only the existing information board equipment on the highway needs to be butted, new equipment is not needed, and the accuracy is high.
本发明提供了一种行程时间预测方法及系统,该方法先获取交通数据并进行预处理,然后根据预处理后的数据基于时空注意力网络模型预测路网中任意两点间所需的车辆速度,并采用最短路径算法计算出路网中任意两点间的最短路径,根据最短路径和预测的车辆速度计算得到任意两点间所需的最短时间,最后通过高速公路上布设的情报板将路网中任意两点间所需的最短时间进行展示。本发明能够有效提高高速公路的通行效率,大大提升了预测精度,且使用方便,仅需对接高速公路上现有的情报板设备,无需新设备,准确性高。
Travel time prediction method and system
一种行程时间预测方法及系统
18.10.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | 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 / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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