GNSS positioning method and GNSS positioning device

A technology of positioning equipment and positioning method, which is applied in the field of satellite positioning, can solve problems affecting the accuracy of positioning data, satellite signals are easily lost and locked, and achieve the effect of high-precision positioning

Active Publication Date: 2018-11-20
GUANGZHOU GEOELECTRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the GNSS positioning process, the satellite signal will easily lose its lock when it encounters environmental factors such as buildings or jungles. The loss of the satellite signal will usually affect the accuracy of the positioning data. The current GNSS positioning method usually cannot Continuously obtain high-precision positioning coordinates in poor environments

Method used

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  • GNSS positioning method and GNSS positioning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] see figure 1 , figure 1 It is a schematic flowchart of a GNSS positioning method disclosed in an embodiment of the present invention. Such as figure 1 As shown, the GNSS positioning method may include the following steps:

[0060] 101. The GNSS positioning device performs differential positioning through the built-in first positioning module, and obtains a differential positioning result.

[0061] 102. When the differential positioning result indicates that a preset condition is satisfied, the GNSS positioning device outputs the differential positioning result.

[0062] Wherein, if the first positioning module can accurately locate, then the differential positioning result of the first positioning module is used as the final positioning data, and the process ends.

[0063] It can be understood that the preset condition may be used to indicate that the differential positioning state of the first positioning module is valid and the accuracy of the differential positio...

Embodiment 2

[0072] see figure 2 , figure 2 It is a schematic flowchart of another GNSS positioning method disclosed in the embodiment of the present invention. Such as figure 2 As shown, the GNSS positioning method may include the following steps:

[0073] 201. The GNSS positioning device uses the first positioning module to perform differential precise positioning to obtain a differential precise positioning result.

[0074] In the embodiment of the present invention, the establishment of the multipath error correction model is implemented through steps 201 to 203 . The establishment of the multi-path error correction model needs to be realized under the condition that the first positioning module can accurately locate, and the differential precise positioning is performed through the first positioning module to obtain the differential precise positioning result.

[0075] 202. The GNSS positioning device uses the second positioning module to analyze the detected satellite signals ...

Embodiment 3

[0097] see image 3 , image 3 It is a schematic structural diagram of a GNSS positioning device disclosed in an embodiment of the present invention. Such as image 3 As shown, the GNSS positioning device may include:

[0098] The first obtaining unit 301 is configured to perform differential positioning through the first positioning module of the GNSS positioning device, and obtain a differential positioning result.

[0099] Optionally, in the embodiment of the present invention, the first acquisition unit 301 is used to perform differential positioning through the first positioning module of the GNSS positioning device, and the way to obtain the differential positioning result may specifically be: the first acquisition unit 301 is used to use The first positioning module of the GNSS positioning device analyzes the detected satellite signals to obtain second satellite observation data, and corrects the second satellite observation data according to the pre-received differe...

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Abstract

The invention discloses a GNSS positioning method and a GNSS positioning device. The method comprises steps that when the differential positioning result obtained by a first positioning module of theGNSS positioning device meets the preset condition, the differential positioning result is outputted as a high-precision positioning coordinate; when the differential positioning result obtained by the first positioning module of the GNSS positioning device does not satisfy the preset condition, according to a pre-established multipath error correction model and a time delay error correction model, first satellite observation data obtained by a second positioning module of the GNSS positioning device is error-corrected to obtain high-precision positioning data. The method is advantaged in thatthe high-precision positioning data can be continuously obtained in the case of relatively poor satellite signals.

Description

technical field [0001] The invention relates to the technical field of satellite positioning, in particular to a Global Navigation Satellite System (Global Navigation Satellite System, GNSS) positioning method and GNSS positioning equipment. Background technique [0002] Many GNSS positioning devices on the market mostly use carrier phase difference technology (Real-Time Kinematic, RTK) for positioning, first detect satellite signals, and then use carrier phase difference technology to solve satellite signals to obtain positioning data. However, during the GNSS positioning process, the satellite signal will easily lose its lock when it encounters environmental factors such as buildings or jungles. The loss of the satellite signal will usually affect the accuracy of the positioning data. The current GNSS positioning method usually cannot Continuously obtain high-precision positioning coordinates in poor environments. Contents of the invention [0003] The embodiment of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/41
Inventor 黄坤
Owner GUANGZHOU GEOELECTRON
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