Method, system and device for generating auxiliary lane changing information by high-precision map

Abstract

The invention provides a method, a system and a device for generating auxiliary lane changing information by a high-precision map. The method comprises the following steps: S1, acquiring lane data of lane change in a high-precision map; s2, reconstructing a lane topology according to lane characteristics in a lane changing interval, and generating a new lane center line link; s3, completing the generation of a lane changing point and the curve optimization of a lane changing lane according to the newly generated lane center line link; and S4, outputting a new high-precision map, and refreshing the generated lane center line and lane changing point into the high-precision map. A clear lane change mark is provided, and the lane center line of a road change section is optimized, so that a lane guiding effect can be provided; lane change reminding and lane change guiding are achieved, lane change of a compact line of a lane is avoided, the driving experience is improved, and support and adaptation of a high-precision map to the lane change function of automatic driving are improved. The performance of the lane changing function in automatic driving is improved, and the automatic driving process is accelerated to a certain extent.

Description

technical field [0001] The invention relates to the field of high-precision electronic map making, in particular to a method, system and device for generating auxiliary lane-change information from a high-precision map. Background technique [0002] High-precision electronic maps mainly serve self-driving vehicles and provide lane-level planning in road sections for self-driving vehicles. In the road, there are often scenes that need to change lanes, such as the divergent confluence of the up and down ramps of the expressway, and the scene where the lanes increase or decrease in the urban road. These scenarios may require changing the driving lane of the vehicle, and the lane change point is a data identifier used to assist the lane to change lanes. [0003] The lane-level data of high-precision electronic maps generally only provide lane edge and lane center line, and lack clear lane change signs. Moreover, the lane center line does not provide the lane change traction ve...

AI Technical Summary

Problems solved by technology

[0003] The lane-level data of high-precision electronic maps generally only provide lane sidelines and lane centerlines, and lack clear lane change signs

Moreover, the centerline of the lane cannot provide the lane change traction of the lane very well.

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