Method, system and storage medium for etc. radar signal generation based on statistical prior

Abstract

The invention discloses a statistical prior-based ETC radar signal generation method, device, system and storage medium, which belong to the technical field of ETC and are used to solve the technical problem that the current single detection method cannot adapt to different road conditions. The specific technical solution adopted is as follows: : Obtain the road condition information at the toll checkpoint for a period of time, the road condition information includes the number and speed of vehicles; according to the road condition information at the toll checkpoint for a period of time, configure the corresponding ETC radar waveform to meet the detection requirements of different road conditions. The statistical prior-based ETC radar signal generation method, device, system and storage medium of the present invention have the advantages of fast response speed, reduced target omission, and the like.

Description

technical field [0001] The present invention mainly relates to the technical field of ETC, in particular to a statistical prior-based ETC radar signal generation method, system and storage medium. Background technique [0002] With the widespread promotion of Electronic Toll Collection System (ETC), the performance requirements of the ETC system are getting higher and higher. The ETC system communicates and interacts wirelessly with the on-board electronic tag through the electronic equipment located at the toll bay, thereby completing fully automatic unattended deduction of fees. Specifically, the ETC system first uses active and passive detection methods (such as ground sensing coils, cameras, electromagnetic beam induction, etc.) to determine whether there is an incoming vehicle. Operation, after the fee deduction is completed, the bayonet will carry out the operation of lifting the bar, so that the vehicle with the fee deducted can pass. Compared with traditional manua...

AI Technical Summary

Problems solved by technology

[0003] Ground sense coil detection method: Arrange ground sense coils on the ground of the toll checkpoint, and judge whether there is a vehicle passing through by sensing the vibration intensity of the ground; the advantage of this method is that the detection accuracy is high, and it can accurately distinguish whether there is a vehicle passing through; the disadvantage is It can only be installed in a specific location and cannot be moved; it cannot be determined in real time where the target is located; it is easily damaged, etc.;

[0004] Camera detection method: by arranging cameras, monitor whether there is a car passing through the bayonet; the advantage is that the license plate information of the vehicle can be advanced; the disadvantage is that the target distance cannot be determined, and it is easy to miss the target due to the occlusion of the front and rear vehicles; the calculation time is slow and the response time is long;

[0005] ETC equipment phased array beam detection method: ETC electronic equipment emits electromagnetic waves with directional information; the electromagnetic waves cover a certain ground range; when a vehicle with an electronic tag passes through the ground area, the ETC electronic equipment can detect it; the The disadvantage of the method is that the phased array beam can only cover a small distance, which is prone to problems such as false positives;

[0006] Simple millimeter-wave radar detection method: This method emits a fixed pattern of millimeter waves to detect targets within a certain range; the advantage is that it can track the distance of the target in real time, so that the ETC system can deduct fees more accurately; the disadvantage is that the single mode does not It can meet the adaptability requirements of low speed, congestion, etc., which may lead to the problem of underreporting

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