Coordinate conversion method between high-precision local maps, terminal and storage medium

A coordinate conversion, high-precision technology, applied in geographic information databases, special data processing applications, structured data retrieval, etc.

Pending Publication Date: 2019-08-09
ZONGMU TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current high-precision map has the following defects: the accuracy index of the map is proportional to the accuracy index of the data, and the vehicle system does not have enough storage space and computing power

Method used

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  • Coordinate conversion method between high-precision local maps, terminal and storage medium
  • Coordinate conversion method between high-precision local maps, terminal and storage medium
  • Coordinate conversion method between high-precision local maps, terminal and storage medium

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Embodiment Construction

[0041] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0042]It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementat...

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Abstract

The invention provides a coordinate conversion method between high-precision local maps, a terminal and a storage medium. Obtaining a first local map, a second local map and connection nodes between the two local maps, selecting a conversion matrix dimension according to the local map dimension, comparing the key points in the first local map with the corresponding key points in the second local map, and obtaining a vector relation of the corresponding key points in each dimension of the coordinate system; dividing the scene map into a plurality of local maps; precise local map splicing is achieved through the coordinate conversion relation, a local map of a loading area is pre-judged according to the vehicle driving intention, semantic information of the road topography and the landform is obtained through the continuous local map coordinate conversion relation, and orderly management and classification of indoor multi-layer, cross-layer, underground and underground multi-layer high-precision map data are achieved.

Description

technical field [0001] The invention relates to the technical field of automotive electronics, in particular to a coordinate conversion method between high-precision local maps, a terminal and a storage medium. Background technique [0002] As a kind of electronic map, fine map includes spatial vector data and attribute information, and spatial vector data is the carrier of electronic map attribute information. The traditional method of making electronic maps is to use the method of abstractly extracting space vector data based on raster data, or use GPS and robot positioning and tracking devices to record and collect the spatial position and field of view information of the passing area, and process and produce space vector data. However, this kind of fine map cannot meet the needs of L4 or even L5 autonomous driving. [0003] A high-precision map contains not only space vector data but also a lot of semantic information. The map may report the meaning of different colors ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/29G06F16/25
CPCG06F16/258G06F16/29
Inventor 余奕李培育唐锐
Owner ZONGMU TECH SHANGHAI CO LTD
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