Method and device for positioning terminal and storage medium

A terminal and terminal receiving technology, which is applied in the direction of measuring devices, satellite radio beacon positioning systems, instruments, etc., can solve the problems of incomplete synchronization of satellite signal transmission time, slow satellite search by GNSS chip, and inability of terminals to perform positioning and positioning, etc.

Active Publication Date: 2021-03-16
TENCENT TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the terminal starts the positioning function for the first time or the GNSS signal is weak, the built-in GNSS chip of the terminal is slow to search for satellites and cannot fully synchronize the launch time of satellite signals
This will cause the terminal to be unable to locate or locate slowly

Method used

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  • Method and device for positioning terminal and storage medium
  • Method and device for positioning terminal and storage medium
  • Method and device for positioning terminal and storage medium

Examples

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Embodiment Construction

[0038] Several embodiments of the present invention will be described in more detail below with reference to the accompanying drawings so that those skilled in the art can understand and implement the present invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. These examples are intended to illustrate rather than limit the invention.

[0039] It will be understood that although the terms first, second, third etc. may be used herein to describe various elements, steps and / or sections, these elements, steps and / or sections should not be limited by these terms. These terms are only used to distinguish one element, step or section from another element, step or section. Thus, a first element, step or section discu...

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Abstract

The invention provides a method and a device for positioning a terminal and a storage medium. Specifically, the invention provides a method for positioning the terminal by using a map application program on the terminal. The method for positioning the terminal comprises the following steps: acquiring Doppler observation values of a plurality of satellites at the terminal; calculating the positionof the terminal based on the Doppler observation values; calculating pseudo-range observation values from the plurality of satellites to the terminal based on the calculated position of the terminal;and correcting the calculated position of the terminal based on the pseudo-range observation values and the air pressure value of the position of the terminal. According to the method, the GNSS pseudo-range observation values and the air pressure value of the terminal are fused so that the first positioning time of a terminal map user is shortened, and the positioning precision is improved.

Description

technical field [0001] The present invention relates to the technical field of terminal positioning, in particular to a terminal positioning method, device and storage medium that integrate GNSS pseudo-range observation values ​​and air pressure values. Background technique [0002] At present, the positioning software (such as map software) used on the terminal (mobile phone, vehicle terminal, etc.) mainly directly uses the positioning result of the global navigation satellite system GNSS chip on the terminal. This method can only locate the terminal after it is fully synchronized with the satellite signal, that is, after the terminal calculates the launch time of the satellite signal. When the terminal starts the positioning function for the first time or the GNSS signal is weak, the built-in GNSS chip of the terminal is slow to search for satellites and cannot completely synchronize the launch time of satellite signals. This will cause the terminal to be unable to perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/42G01S19/39G01S19/40
CPCG01S19/42G01S19/396G01S19/40
Inventor 苏景岚
Owner TENCENT TECH (SHENZHEN) CO LTD
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