Road matching method, road matching apparatus and vehicle-mounted map acquisition system

Abstract

The invention provides a road matching method, a road matching apparatus and a vehicle-mounted map acquisition system, and relates to the field of map making. In the prior art, the existing matching accuracy is not high, and the high accuracy requires a lot of data learning. A purpose of the present invention is to solve the problems in the prior art. The road matching method comprises: acquiring the regularly upload data of a positioning system, and converting the data uploaded by the positioning system into the positioning data in a vector map; according to the positioning data at the current moment, determining the current positioning position, and acquiring the road information within a preset range using the current positioning position as the center as a first set; according to the road matching information determined at the previous moment, searching the road information associated with the determined road matching information in a vector map road network as a second set; according to the first set and the second set, acquiring candidate road matching information; and acquiring the weight value corresponding to each candidate road matching information according to a weight algorithm, and acquiring the road matching information at the current moment. With the technical scheme of the present invention, the matching accuracy is increased, and the extensive data learning is not required.

Description

technical field [0001] The invention relates to the technical field of map making, in particular to a road matching method, device and vehicle-mounted map collection system. Background technique [0002] In the car navigation system, due to the influence of the GPS (Global Positioning System, Global Positioning System) signal and the accuracy of the vector map, the positioning of the navigation car on the road is often not in the middle of the road, resulting in the wrong matching of the survey line and the road. High accuracy of road matching and precise positioning. At present, there are three main solutions: first, use high-precision navigation equipment to improve the accuracy of GPS signal positioning; second, improve the accuracy of vector maps; third, improve the road matching algorithm . [0003] At present, the above-mentioned first and second methods are greatly affected by objective reasons. Even if the accuracy of GPS signal positioning and vector map accuracy c...

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention provides a road matching method, device and vehicle-mounted map collection system, which can solve the problem that the road matching algorithm that is easy to implement in the prior art has large errors and low accuracy, and the algorithm with high accuracy requires a large amount of data study problem

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