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High-precision map updating method and device

A map update, high-precision technology, applied in the direction of database update, geographic information database, special data processing applications, etc., can solve the problems of low update efficiency and limited scope of influence, and achieve the effect of improving update efficiency

Pending Publication Date: 2021-01-05
NAVINFO
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Problems solved by technology

[0004] However, when a certain point changes, its scope of influence is limited, and it is not necessary to process the entire map data in full, and the update efficiency of existing technology methods is low

Method used

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  • High-precision map updating method and device
  • High-precision map updating method and device

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings in this application. Obviously, the described embodiments are part of the embodiments of this application , but not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0029] In this application, it should be explained that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance. In addition, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for examp...

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Abstract

The invention provides a high-precision map updating method and device. The method comprises the steps of obtaining a tracking starting point in a map sheet; obtaining a road string in a first direction and a road string in a second direction of a road where the tracking starting point is located; according to the speed limiting type corresponding to the tracking starting point, searching a cut-off point along the road string in the first direction and the road string in the second direction from the tracking starting point; determining an influence range corresponding to the tracking startingpoint according to the cut-off point found by the path string along the first direction and the cut-off point found by the path string along the second direction; updating the data in the influence range in the high-precision map. Compared with the prior art of updating the full-amount map data, the method provided by the embodiment of the invention is advantageous in that the method only updatesthe range influenced by the tracking starting point, and omits the updating of the part which is not influenced by the tracking starting point and does not need to be updated, and therefore the updating efficiency is improved.

Description

technical field [0001] The invention relates to the field of automatic driving, in particular to a method and device for updating a high-precision map. Background technique [0002] Compared with traditional electronic maps, high-precision maps have the characteristics of higher precision and wider data dimensions. Higher accuracy is reflected in the fact that the high-precision map can be accurate to the centimeter level, and the wider data dimension is reflected in the high-precision map. In addition to the existing road information in the traditional map, it also includes traffic signs, traffic lights, lane height limits, sewer crossings, and obstacles. Objects and other road details are used to assist self-driving vehicles to achieve safe driving. Maintaining the freshness of high-resolution maps is critical for autonomous vehicles. [0003] In the existing technology, when there is a change in a certain location point on the real road, for example: a speed limit is se...

Claims

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Application Information

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IPC IPC(8): G06F16/29G06F16/23
CPCG06F16/29G06F16/23
Inventor 刘娜郝虑远李佳悦
Owner NAVINFO
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