Road network data updating method, system and device based on intersection surface shape change

Abstract

The invention provides a road network data updating method, a road network data updating system and a road network data updating device based on intersection surface shape change. The road network data updating method comprises the following steps: Step 1, intersection surface shape change; step 2, processing a lane isolation line driving into an intersection; 3, according to the attribute change points of the lane isolation lines processed in the step 2, the distance values of the starting points of the lane isolation lines related to the distance of the attribute change points of the lane isolation lines are updated; step 4: updating a road vector shape and a road attribute change point; step 5: updating a lane vector shape, a lane attribute change point and a lane node; 6, according to the mode of the step 2, the lane isolation line driving away from the intersection is processed, and based on the result of the step 6, the steps 3 to 5 are executed again; 7, updating a virtual lane isolation line and a lane vector in the intersection; and Step 8, recalculating and updating the association relationship between the road network and the ground features. The ID immobilization requirement is met, the difference comparison result before and after data modification can be quickly obtained, and the overall efficiency of data making and updating is improved.

Description

technical field [0001] The invention relates to the technical fields of high-precision map data production and automatic driving, in particular to a method, system and device for updating road network data based on shape changes of intersection surfaces. Background technique [0002] In the current high-precision map data production process and data production process, when the road topology does not change and only the intersection area changes slightly, the road network and topology data need to be updated. The method is to first update the existing intersection and topology data. Delete, and then recreate the intersection and topology to obtain updated road network and topology data. [0003] The above process is cumbersome to operate, and due to the deletion and addition operations, the record entries of the newly added and deleted elements are changed, which cannot meet the needs of ID immobilization. When the IDs of the data elements in the previous and subsequent ver...

AI Technical Summary

Problems solved by technology

[0003] The above process is cumbersome to operate, and due to the existence of deletion and addition operations, the record entries of new elements and deleted elements are changed, which cannot meet the needs of ID immobilization

When the IDs of the data elements in the previous and subsequent versions do not match, the data producers and quality inspectors need to confirm the change items one by one, and create a change comparison relationship, which increases the workload of data self-inspection and quality inspection, and reduces the cost of data production and update. overall efficiency

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