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Lane level positioning method, device, system and related equipment

A positioning method and lane-level technology, applied in the field of intelligent transportation, can solve the problems of positioning requirements, positioning accuracy and adaptability cannot be satisfied.

Pending Publication Date: 2021-09-10
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the positioning accuracy and adaptability of the existing vehicle positioning technology cannot meet the positioning requirements of automatic driving and intelligent assisted driving. Therefore, how to accurately locate the vehicle position and achieve precise positioning at the lane level has become an urgent technical problem to be solved.

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  • Lane level positioning method, device, system and related equipment
  • Lane level positioning method, device, system and related equipment
  • Lane level positioning method, device, system and related equipment

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Embodiment Construction

[0039] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0040] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the ...

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Abstract

The invention discloses a lane level positioning method, device and system and related equipment. The method comprises the steps of positioning the current position of a vehicle, randomly generating a preset number of position points around the current position; for each position point, determining the probability that the position point is possibly a real vehicle position, when the probability is determined, determining the probability that each position point may be the real position of the vehicle in each mode based on various modes such as electronic map errors, line types of lane lines on two sides of a lane where the vehicle is located sensed by at least two sensing technologies, distances to the lane lines on the two sides and the like, fusing the probabilities obtained by the various modes to obtain the final probability, and positioning the position of the vehicle based on the final probability. According to the method, the problem of low accuracy when a single mode is adopted for positioning is solved, the positioning precision of vehicle positioning and robustness in different scenes are improved, lane-level accurate positioning is realized, the method can adapt to different-level positioning requirements of different scenes, and the influence of external factors on the positioning accuracy is reduced.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a lane-level positioning method, device, system and related equipment. Background technique [0002] In intelligent transportation technology, in order to realize automatic driving or intelligent assisted driving, it is necessary to accurately locate the position of the vehicle. At present, most of the methods for positioning vehicles rely on global navigation satellite systems and inertial navigation systems. On the one hand, the positioning accuracy of these systems cannot reach the lane-level positioning accuracy required by intelligent transportation. After losing the signal in the environment, it will not be able to continue to locate the position of the vehicle. [0003] The existing methods that can realize lane-level positioning of vehicles include: positioning based on carrier phase difference technology, also known as real-time dynamic difference (Re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/30G01C21/34G01C21/36
CPCG01C21/30G01C21/3446G01C21/3658
Inventor 杨威毛灵飞
Owner ALIBABA GRP HLDG LTD
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