Safety traffic sign error correction method and system based on Internet of Vehicles

Abstract

The invention provides a safety traffic sign error correction method and system based on the Internet of Vehicles, 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 image information of the traffic sign is collected, geographic position information of a vehicle end is collected at the same time; the cloud traffic management server not only judges whether the safety traffic sign image is illegally altered and tampered based on the digital watermark information, but also compares the geographic position information of the vehicle end with the geographic position information of the safety traffic sign contained in the digital watermark information in the judgment and error correction stage of the safety traffic sign; and therefore, 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. 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 invention relates to the technical field of traffic sign correction and Internet of Vehicles, in particular to a method and system for correcting safe traffic signs based on Internet of Vehicles. 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. The main signs include speed limit signs, warning signs, prohibition signs, instruction signs, road signs, etc. Among them, the speed limit signs are divided into signs that limit the minimum speed and signs that limit the maximum speed. Cars on this road are not allowed to drive at a low speed, the purpose is to allow cars to pass quickly, make traffic faster and avoid congestion. The ...

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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