Method for locating and controlling multilane free flow video vehicle

Abstract

The invention relates to a multi-lane free flow video vehicle position and control method, the processes thereof are that: step 1, virtual coils are arranged in the visual field of a panoramic camera to form a detection area. Step 2, when a vehicle enters the detection area, a video detector starts an algorithm program to obtain the position of the vehicle. Step 3, a central processing unit starts a microwave communication system and an image snapshot system. Step 4, a logical comparison system judges whether the vehicle has electronic label information, if without, executing step 8. Step 5, the logical comparison system judges whether a vehicle license plate number in the electronic label information and the vehicle license plate number which is identified by a license plate recognition system are consistent, if not consistent, executing step 8 is. Step 6, the images of the vehicle which are snapshot are deleted. Step 7, toll transaction is done, and a transaction record is formed after the transaction. Step 8, the transaction record which is transferred to a background billing system is further treated. Step 9, returning to a main process. The method can achieve an electronic toll collection function in a multi-lane free flow mode through the accurate location for the vehicle and the coordination control for a system.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and relates to a video vehicle positioning and coordination control method of a free-flow electronic toll collection system. The method can complete electronic toll collection under the free-running state of the vehicle. Background technique [0002] With the continuous expansion of city scale and the rapid development of expressways, the urban traffic flow has increased rapidly and the traffic density has increased significantly, which puts forward new requirements for the vehicle traffic capacity of road toll stations. [0003] The traditional manual semi-automatic charging method requires "parking-paying-starting", and vehicle congestion often occurs. However, the ETC electronic non-stop charging system currently used in China still needs toll booths and automatic railings. Vehicles must drive along a certain lane when passing through toll booths, and the traffic capacity of...

AI Technical Summary

Problems solved by technology

[0005] In the multi-lane free flow non-stop electronic billing mode, when vehicles pass through the toll area, there may be lane changes and multiple vehicles running in parallel. If the high-speed vehicles are not accurately positioned, false detections and missed detections may occur

[0006] At present, the video detector of the expressway generally adopts the method of setting a virtual coil to cover a lane to detect the condition of the lane. Once a vehicle passes by, the vehicle triggers the virtual coil, and the video detector obtains the specific lane vehicles and lane traffic through data processing. For location information, it can only be determined in a certain lane, and the width range of a single lane of expressway is 3.75 meters, which does not meet the requirements of vehicle positioning accuracy in the free-flow toll mode

Images