The invention relates to the technical field of traffic early warning, and discloses a traffic flow-based real-time traffic state identification and accident risk early warning method, which comprises the following steps: S1, data acquisition: extracting historical traffic accident data and traffic flow data, fusing the historical traffic accident data and the traffic flow data into a tree diagram, and when the data is extracted, extracting the data from the tree diagram; acquiring traffic flow parameters of positions where the data occur, fusing the data, and extracting invalid data; s2, extracting the obtained traffic flow data, obtaining valid data, and kicking out invalid data to obtain traffic flow data capable of reflecting the traffic operation state; s3, acquiring real-time driving data of the current vehicle, a first target vehicle in front of the current vehicle and a second target vehicle in front of the first target vehicle according to the current vehicle; the problems of single early warning, low efficiency and the like of traffic accidents depending on static black spot data at present are solved.
本发明涉及交通预警技术领域,且公开了基于交通流的实时交通状态辨识及事故风险预警方法,包括以下步骤:S1:获取数据:对历史交通事故的数据和交通流数据进行提取,并将其进行融合处理成树状图,在提取数据时,对获得数据其发生的位置的交通流参数,且对其数据进行融合,并提出无效数据;S2:对获取到的交通流数据进行提取,并获取有效数据,踢出无效数据,以获取可以反应交通运行状态的交通流数据;S3:再根据现有的车辆,获取其当前车辆、位于当前车辆前方的第一目标车辆刚和位于第一目标车辆前方的第二目标车辆的实时行驶数据。通过弥补目前依靠静态黑点数据对交通事故的预警单一、低效等问题。
Real-time traffic state identification and accident risk early warning method based on traffic flow
基于交通流的实时交通状态辨识及事故风险预警方法
08.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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