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Vehicle positioning method and device

A vehicle positioning and vehicle technology, applied in the field of automatic driving, can solve the problem of long time-consuming drift of the positioning system

Active Publication Date: 2021-04-27
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, analyzing each positioning sub-unit and the fusion positioning algorithm, and performing corresponding repairs will lead to a long time-consuming solution to the drift problem of the positioning system

Method used

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  • Vehicle positioning method and device
  • Vehicle positioning method and device

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Embodiment Construction

[0032] Exemplary embodiments of the present application are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0033] In order to better understand the technical solution of this application, the background technology involved in this application is further described in detail below:

[0034] During the drive test, the positioning system may drift, resulting in deviations in the output positioning results.

[0035] At present, when solving the drift problem of the positionin...

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Abstract

The invention discloses a vehicle positioning method and device, and relates to the field of automatic driving. According to the specific implementation scheme, the method comprises the steps of: determining the initial weight of each positioning subunit, wherein each positioning subunit is used for positioning a vehicle by adopting different positioning methods; according to the vehicle operation data, determining a positioning truth value in the vehicle operation process; comparing the positioning data, the fused positioning data and the positioning true value of the vehicle according to each positioning subunit, and adjusting the initial weight of each positioning subunit according to the comparison result; and performing fusion calculation according to the adjusted weight of each positioning subunit to obtain a positioning result of the vehicle. By comparing the positioning data with the positioning true value, the weight of each positioning subunit is adjusted to reduce the influence of the positioning subunit causing drifting in fusion calculation, so that the problem of positioning drifting can be quickly and efficiently solved by adjusting the weight.

Description

technical field [0001] The present application relates to the field of automatic driving in computer technology, in particular to a vehicle positioning method and device. Background technique [0002] During the drive test, the positioning system may drift, resulting in deviations in the output positioning results. [0003] At present, when solving the drift problem of the positioning system, it is usually to analyze each positioning sub-unit and the fusion positioning algorithm in the positioning system, so as to determine the specific positioning sub-unit that has the problem, or determine the fusion positioning algorithm that causes the problem, After that, the problematic positioning subunit or fusion positioning algorithm is repaired to solve the drift problem of the positioning system. [0004] However, analyzing each positioning sub-unit and the fusion positioning algorithm, and performing corresponding repairs will lead to a long time-consuming solution to the drift...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/16G01C21/34
CPCG01C21/165G01C21/3415G01C21/3446
Inventor 李元
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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