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Method and device for positioning vehicle

A vehicle and positioning time technology, applied in the computer field, can solve problems such as single technology, low position accuracy, and inability to meet unmanned driving

Active Publication Date: 2018-11-02
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing positioning methods usually use a single technology for positioning, and each positioning technology has some inherent def

Method used

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  • Method and device for positioning vehicle
  • Method and device for positioning vehicle

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Embodiment Construction

[0037] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0038] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0039] figure 1 An exemplary system architecture 100 is shown to which embodiments of the method for locating a vehicle or the apparatus for locating a vehicle of the present application can be applied.

[0040] Such as figure 1 As shown, the system architecture 100 may in...

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Abstract

The present invention discloses method and device for positioning a vehicle. According to one embodiment of the invention, the method includes the following steps that: the priori position of a vehicle at a current positioning time point, which is determined by a vehicle-mounted inertial navigation system through performing strapdown solution between a previous positioning time point and the current positioning time point, is obtained; a map area to be searched is determined in a laser point cloud reflection value map on the basis of the prior position; real-time laser point cloud collected bythe vehicle-mounted laser radar of the vehicle is projected, so that the reflection value feature of a projected area can be obtained, and the reflection value feature of the projected area is matched with the reflection value feature of the map area to be searched, so that a map matching position can be obtained according to a matching result; positioning is carried out on the basis of the priori position and the observation data of the receiver of the vehicle-mounted global navigation satellite system of the vehicle, so that a satellite positioning position can be obtained; and the priori position, the map matching position and the satellite positioning position are merged, so that the positioning result of the positioning of the vehicle at the current time can be generated. With the method provided by the embodiment adopted, high-precision positioning can be realized.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to the field of positioning technology, and in particular to a method and device for positioning a vehicle. Background technique [0002] Positioning technology is one of the core technologies of the unmanned vehicle automatic driving system, and the positioning output is the key input for operations such as perception and path planning in the unmanned driving system. Positioning technology needs to have high precision, high reliability, high availability and strong continuity to meet the needs of unmanned vehicle application scenarios. [0003] However, the existing positioning methods usually use a single technology for positioning, and each positioning technology has some inherent defects, so the output position accuracy is low, which cannot meet the needs of unmanned driving and other fields that require precise positioning. needs. Contents of the invention [00...

Claims

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Application Information

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IPC IPC(8): G01S19/48G01S19/47G01C21/16G01C21/30G01S17/88
CPCG01C21/165G01C21/30G01S17/88G01S19/47G01S19/48G01S17/00G01S17/42G01S17/89G01S7/4808G05D1/0231G05D1/027G05D2201/0213G08G1/137G05D1/0278G01S17/86G05D1/024G05D1/0268G05D1/0257G06V20/56
Inventor 蔡仁澜杨晓龙万国伟卢维欣宋适宇徐宝强
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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