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Method for location of location terminal and location terminal

A positioning terminal and terminal technology, applied in the field of Internet of Vehicles, can solve the problems of poor satellite positioning accuracy, satellite positioning not working normally, poor positioning timeliness, etc.

Active Publication Date: 2019-02-26
CHINA MOBILE COMM LTD RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The positioning accuracy based on satellites is generally poor. Although the positioning accuracy based on satellites can reach 0.1 meters after adopting a higher-precision positioning method, it takes a long time to locate and the timeliness of positioning is poor.
In addition, in areas under tunnels, viaducts, and densely populated high-rise buildings, satellite signals are blocked, and satellite-based positioning cannot work normally.
[0005] Therefore, the positioning accuracy based on the base station in the prior art cannot meet the vehicle positioning accuracy requirements

Method used

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  • Method for location of location terminal and location terminal
  • Method for location of location terminal and location terminal
  • Method for location of location terminal and location terminal

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Embodiment Construction

[0074] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0075] The technology provided by the present invention realizes high-precision positioning of vehicles based on communication equipment such as base stations / roadside units / terminals.

[0076] An embodiment of the present invention provides a m...

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Abstract

The present invention provides a method for location of a location terminal and a location terminal. The method comprises the steps of: obtaining map information of an area where a location terminal is located; obtaining position information of a base station, a roadside unit or other terminals; measuring space distances from the location terminal to at least one base station, the roadside unit orother terminals; and according to the space distances, the position information and the map information, determining the geographic position of the location terminal. The method for location of the location terminal and the location terminal can avoid the influence of the low-precision distance measurement on the location precision, can reduce the dependence on the synchronization precision between the base stations and can reduce the errors caused by the measurement delay.

Description

technical field [0001] The present invention relates to the Internet of Vehicles technology, in particular to a positioning method for a positioning terminal and a positioning terminal. Background technique [0002] In the Internet of Vehicles system, assisted driving or automatic driving can be realized based on the communication between vehicle-to-network, vehicle-to-road, vehicle-to-vehicle, and vehicle-to-human. Assisted driving and automatic driving require high positioning accuracy of the vehicle. The positioning accuracy required in automatic driving needs to reach 0.5 meters in the longitudinal direction (along the driving direction of the vehicle) and 0.1 meters in the horizontal direction (perpendicular to the driving direction of the vehicle). [0003] At present, the commonly used positioning technology can be positioned by the base station of the cellular network or the positioning satellite. The positioning accuracy based on the base station can reach 50-300 me...

Claims

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Application Information

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IPC IPC(8): G01S5/10G01S5/14G01C21/28H04W64/00
CPCG01C21/28G01S5/10G01S5/14H04W64/00
Inventor 夏亮杨光
Owner CHINA MOBILE COMM LTD RES INST
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