The invention relates to a tunnel vehicle auxiliary positioning method based on roadside video stream trajectory tracking, and the method comprises the steps: S1, enabling a high-definition license plate recognition system to be disposed at the section of a tunnel entrance, enabling a high-definition camera to be provided with an overlapping monitoring region, and enabling a tunnel roadside to be provided with an RSU unit; s2, completing the tracking of the target vehicle, and recording the temporary running track ID of the formed track; s3, performing license plate recognition on vehicles in a license plate recognition area shot by the high-definition license plate recognition system; s4, converting the horizontal and vertical coordinates of all vehicles into Frenet coordinates, matching the video track with the license plate ID in the same coordinate system, and replacing the temporary running ID of the track with the license plate ID; s5, when the vehicle enters the multi-camera-position overlapping monitoring area, monitoring handover of the first camera position and the second camera position is completed; s6, broadcasting information to surrounding vehicles according to the frequency by using an RSU unit traffic information receiving and transmitting module; and S7, the vehicle carrying the OBU receives the information broadcasted by the RSU. The method can solve the problem that a navigation system cannot work normally due to vehicle satellite positioning failure in a tunnel.
本发明涉及一种基于路侧视频流轨迹跟踪的隧道车辆辅助定位方法,包括步骤:S1、将高清车牌识别系统设置在隧道入口断面,高清摄像机设置重叠监控区,隧道路侧配套RSU单元;S2、完成目标车辆的跟踪,记录形成轨迹的临时流水轨迹ID;S3、对高清车牌识别系统拍摄的车牌识别区域车辆进行车牌识别;S4、将所有的车辆横纵坐标全部转化为Frenet坐标,在同一坐标系下进行视频轨迹与车牌ID的匹配,将轨迹临时流水ID替换为车牌ID;S5、当车进入多机位重叠监控区,完成第一机位和第二机位监控交接;S6、利用RSU单元交通信息收发模块向周围车辆按照频率广播信息;S7、搭载OBU车辆接受RSU广播的信息。本发明可以解决隧道内车辆卫星定位失效导航系统无法正常工作的问题。
Tunnel vehicle auxiliary positioning method based on roadside video stream trajectory tracking
基于路侧视频流轨迹跟踪的隧道车辆辅助定位方法
2024-07-05
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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