The invention relates to a network connection vehicle track reconstruction method and device based on checkpoint detection and a medium, and the method comprises the following steps: obtaining and updating checkpoint detection data and network connection vehicle data in real time through a roadside central controller, the network connection vehicle data comprises vehicle numbers, positions and speeds of front and rear vehicles of the to-be-detected vehicle; an adjacent network connection vehicle range is used as an estimation unit, the number distribution of the vehicles in different estimation units is estimated through a hidden Markov model according to the bayonet detection data and the network connection vehicle data in the current time period, and the change of the number distribution is the lane changing behaviors of the vehicles in different network connection vehicle units; and based on the number distribution and the lane changing behavior, considering the following behavior of the vehicle, and performing vehicle trajectory reconstruction by using a following model to obtain a complete vehicle trajectory in the current time period. Compared with the prior art, the method has the advantages of being high in reconstruction precision, suitable for low-permeability network connection and the like.
本发明涉及一种基于卡口检测的网联车轨迹重构方法、装置和介质,方法包括以下步骤:通过路侧中心控制器实时获取并更新卡口检测数据和网联车数据,其中卡口检测数据包括待测车辆编号、进入时间及速度,网联车数据包括待测车辆的前后车的车辆编号、位置及速度;以相邻网联车范围作为一个估计单元,依据当前时间段的卡口检测数据和网联车数据,通过隐马尔科夫模型估计车辆在不同估计单元内的数量分布,数量分布的变化即车辆在不同网联车单元内的换道行为;基于数量分布和换道行为,考虑车辆的跟驰行为,使用跟驰模型进行车辆轨迹重构,得到当前时间段内完整的车辆轨迹。与现有技术相比,本发明具有重构精度高,适用于低渗透率网联等优点。
Network connection vehicle track reconstruction method and device based on bayonet detection, and medium
一种基于卡口检测的网联车轨迹重构方法、装置和介质
2024-06-14
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen |
Electric vehicle charging connection mechanism with rotary connection bayonet
European Patent Office | 2021
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