V2X-based safety traffic sign error correction method and system

Abstract

The invention provides a V2X-based safety traffic sign error correction method and system, which is characterized in that a safety traffic sign is generated by embedding digital watermark information in a common traffic sign image, and in the driving process of a vehicle, when the image information of the traffic sign is acquired, the geographic position information of a vehicle end is acquired at the same time; in the judgment and error correction stage of the safety traffic sign, whether the image of the safety traffic sign is illegally altered and tampered or not is judged based on the digital watermark information, and the geographic position information of the vehicle end is compared with the geographic position information of the safety traffic sign contained in the digital watermark information; the problem of judgment and error correction of the safety traffic sign image after the placement position is incorrect or the safety traffic sign image is illegally moved is solved. And the vehicle end also performs checking, verification and error correction processing on the condition that the traffic sign is found on the road of the actual place, but the traffic sign is not found at the corresponding position in the map information or the found traffic sign content is wrong.

Description

technical field [0001] The present invention relates to the technical field of traffic sign correction and V2X Internet of Vehicles, in particular to a V2X-based safe traffic sign correction method and system. Background technique [0002] Traffic signs are road facilities that convey guidance, restrictions, warnings or instructions in words or symbols. Also known as road signs, road traffic signs. Traffic signs are an important measure to implement traffic management and ensure road traffic safety and smoothness. Traffic signs are divided into main signs and auxiliary signs. Among them, the main signs include speed limit signs, warning signs, prohibition signs, instruction signs, and road signs. [0003] Vehicle wireless communication technology (Vehicle to Everything, V2X) is a new generation of information communication technology that connects vehicles with everything, and is a general term for a series of vehicle communication technologies. V2X mainly includes Vehic...

AI Technical Summary

Problems solved by technology

In addition, the traffic sign information in the map information in the high-precision map may also be missing or have incorrect content, which may also affect the safety of self-driving cars from another aspect

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