A path planning method and device based on the combination of traditional maps and high-precision maps
A path planning and traditional map technology, applied in measuring devices, road network navigators, navigation and other directions, it can solve the problems of unable to change lanes, unable to drive to the destination, etc., and achieve the effect of improving reliability
Active Publication Date: 2021-10-08
WUHAN ZHONGHAITING DATA TECH CO LTD
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Problems solved by technology
[0004] Aiming at the technical problems existing in the prior art, the present invention provides a path planning method and device based on the combination of traditional maps and high-precision maps, which solves the traditional path planning method, and performs lane-level path planning after road-level routes are planned. , it may happen that the lane of the road where the current vehicle is located cannot change lanes and drive to the next road in the planned route, resulting in the problem that it is impossible to drive to the destination according to the route planning results of the navigation
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[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0039] The existing path planning method based on the combination of traditional map and high-precision map needs to plan the road-level route, and then re-plan the lane-level route based on the result. However, after the road-level route is planned, when the lane-level route is planned, sometimes the lane of the road where the current vehicle is located cannot be changed to the next road in the planned route, which will lead to the inability to The pa...
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The present invention relates to a path planning method and device based on the combination of traditional maps and high-precision maps. The method includes: acquiring traditional map data and high-precision map data; and performing road-level path planning based on traditional map data. If road-level path planning is successful, lane-level path planning is performed based on road-level path planning results and high-precision map data. If lane-level path planning fails, unreachable roads are eliminated, and road-level path planning and lane-level path planning are performed again. In the present invention, when road-level path planning is successful and lane-level path planning fails, unreachable roads are eliminated, and then road-level path planning and lane-level path planning are re-planned until a drivable lane-level path is successfully planned. Solved the problem that lane-level path planning failed after road-level path planning succeeded. It can ensure that a drivable lane-level path can be planned, and the reliability of the path planning method is improved.
Description
technical field [0001] The present invention relates to the technical field of electronic map navigation, in particular to a path planning method and device based on the combination of traditional maps and high-precision maps. Background technique [0002] With the development of science and technology, the road-level routes planned based on traditional map data can no longer meet the needs of car dealers, so lane-level routes planned based on high-precision map data are produced to assist and guide vehicles, but the lane-level routes are directly carried out. The amount of planning data and calculation is too large. Therefore, after the road-level route is planned, the lane-level route is re-planned based on the result. [0003] However, after the road-level route is planned, when the lane-level route is planned, sometimes the lane of the road where the current vehicle is located cannot be changed to the next road in the planned route, which will lead to the inability to T...
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IPC IPC(8): G01C21/34
CPCG01C21/3446
Inventor 王君汪林娟苏珽刘奋
Owner WUHAN ZHONGHAITING DATA TECH CO LTD