High-precision map construction method and system
A map construction, high-precision technology, applied in the field of maps, can solve the problem of large task volume of global high-precision map construction
Active Publication Date: 2020-11-03
BEIJING DIDI INFINITY TECH & DEV
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Therefore, a distributed cloud processing technology is proposed to increase the storage, management and processing capabilities of map data and solve the problem of large global high-precision map construction tasks.
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[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.
[0015] It should be understood that "system", "device", "unit" and / or "module" as used herein is a method for distinguishing different components, elements, components, parts or assemblies of different levels. However, the words may be replaced by other expressions if other words can achieve the same purpose.
[0016] As indicated in this application and claims, the terms "a", "an", "an" and / o...
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Some embodiments of the invention disclose a high-precision map construction method and system. The method comprises the steps: constructing local maps, and obtaining a global map based on the multiple local maps, wherein the construction of the local maps comprises the following steps: acquiring pose data of a vehicle and point cloud data related to a laser radar, and obtaining a local point cloud set based on the pose data and the point cloud data; performing registration and optimization processing based on the local point cloud set to obtain an optimized pose node and a local point cloud set corresponding to the optimized pose node, and generating a local map based on the optimized pose node and the local point cloud set corresponding to the optimized pose node. According to some embodiments of the invention, the construction task of the global map is divided into a plurality of construction sub-tasks of the local maps, and then a plurality of sub-steps of the sub-tasks are subjected to multiple distributed processing, so that high-precision map construction can be completed quickly, the efficiency is improved, and the cost is reduced.
Description
technical field [0001] This application relates to the field of maps, in particular to a high-precision map construction method and system. Background technique [0002] With the continuous development of computer and communication technology, maps provide great help for people to travel, and the information they provide includes but is not limited to road information, building information, traffic information and so on. Due to the huge amount of map data, no matter storage, processing or construction, there are high requirements for cloud servers. Therefore, a distributed cloud processing technology is proposed to increase the storage, management and processing capabilities of map data and solve the problem of large global high-precision map construction tasks. Contents of the invention [0003] One of the embodiments of the present application provides a method for constructing a high-precision map. The method includes: constructing a local map, and obtaining a global ...
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IPC IPC(8): G09B29/00
CPCG09B29/007
Inventor 王民康王飞
Owner BEIJING DIDI INFINITY TECH & DEV