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A vehicle positioning method, device and equipment

A technology for vehicle positioning and target vehicles, applied in directions such as road network navigators, can solve the problems of reducing positioning accuracy and precision loss, and achieve the effect of improving accuracy and reducing the amount of calculation.

Active Publication Date: 2021-05-14
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the earth is ellipsoidal. Applying the above scheme to map the latitude and longitude information of the ellipsoidal surface to the plane coordinate system will cause some precision loss and stretching defects, which will reduce the accuracy of positioning.

Method used

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  • A vehicle positioning method, device and equipment
  • A vehicle positioning method, device and equipment
  • A vehicle positioning method, device and equipment

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Embodiment Construction

[0101] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0102] In order to solve the above technical problems, embodiments of the present invention provide a vehicle positioning method, device and equipment. A vehicle positioning method provided by an embodiment of the present invention will firstly be described in detail below. The method can be applied to a server, or to other various electronic devices, which is not specifically limited.

[0103] figure 1 The first schematic flow chart of the vehicle positioni...

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Abstract

The embodiment of the present invention discloses a vehicle positioning method, device and equipment. In this solution, the second position of the target site that matches the first position of the target vehicle is roughly determined in the non-ellipsoidal map model, and then accurately calculated The ellipsoid distance between the first position of the target vehicle and the second position of the target site in the ellipsoid map model; Accuracy; on the other hand, compared with the scheme of "accurately calculating the ellipsoid distance between the first position of the target vehicle and the second position of all stations in the ellipsoid map model", the amount of calculation is reduced.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a vehicle positioning method, device and equipment. Background technique [0002] In some scenarios, it is usually necessary to accurately locate the vehicle, for example, for a bus vehicle, it is usually necessary to determine its station. In existing solutions, a GIS (Geographic Information System, geographic information system) algorithm is usually used to map the latitude and longitude information to a plane coordinate system, and determine the station where the vehicle is located in the plane coordinate system. [0003] However, the earth is ellipsoidal. Applying the above scheme to map the latitude and longitude information of the ellipsoidal surface to the plane coordinate system will cause some precision loss and stretching defects, which will reduce the accuracy of positioning. Contents of the invention [0004] The purpose of the embodiments of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/28
CPCG01C21/28
Inventor 魏文超
Owner HANGZHOU HIKVISION DIGITAL TECH