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A positioning method, system and navigation device

A positioning system and positioning method technology, applied in the field of navigation, can solve the problems of satellite navigation error, unstable satellite signal quality, affecting user experience, etc., and achieve the effect of reducing dispatch and scheduling, improving driving safety, and low positioning cost.

Inactive Publication Date: 2019-03-22
深圳市安煋信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to various factors such as receiver clock errors, ephemeris errors, and atmospheric effects, satellite navigation often has large errors, and due to different geographical environments, the quality of satellite signals captured by receivers is often unstable. Greatly affect people's experience

Method used

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  • A positioning method, system and navigation device
  • A positioning method, system and navigation device
  • A positioning method, system and navigation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, a positioning method is disclosed in this embodiment, including:

[0050] S101. Acquire satellite signals, and obtain a first positioning result according to the satellite signals;

[0051] S102. Obtain ephemeris information, and obtain a second positioning result according to the ephemeris information;

[0052] S103. Acquire pseudorange correction information, pseudorange information, and time information, and obtain a third positioning result according to the pseudorange correction information, pseudorange information, and time information;

[0053] S104. Obtain RTK correction information, carrier phase information and time information, and obtain a fourth positioning result according to the RTK correction information, carrier phase information and time information;

[0054] S105. Select one or more of the first positioning result, the second positioning result, the third positioning result and the fourth positioning result as a final positi...

Embodiment 2

[0094] Such as image 3 As shown, a positioning system is disclosed in this embodiment, including:

[0095] The first positioning module 301 is configured to acquire satellite signals, and obtain a first positioning result according to the satellite signals;

[0096] The second positioning module 302 is configured to obtain ephemeris information, and obtain a second positioning result according to the ephemeris information;

[0097] The third positioning module 303 is configured to obtain pseudorange correction information, pseudorange information and time information, and obtain a third positioning result according to the pseudorange correction information, pseudorange information and time information;

[0098] The fourth positioning module 304 is configured to obtain RTK correction information, carrier phase information and time information, and obtain a fourth positioning result according to the RTK correction information, carrier phase information and time information;

...

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Abstract

The invention provides a positioning system, which comprises a first positioning module, a second positioning module, a third positioning module, a fourth positioning module and a screening module, and is characterized in that the first positioning module is used for acquiring a satellite signal and obtaining a first positioning result according to the satellite signal; the second positioning module is used for acquiring ephemeris information and obtaining a second positioning result according to the ephemeris information; the third positioning module is used for acquiring pseudo-range modification information, pseudo-range information and time information and obtaining a third positioning result according to the pseudo-range modification information, the pseudo-range information and the time information; the fourth positioning module is used for acquiring RTK modification information, carrier phase information and time information and obtaining a fourth positioning result according to the RTK modification information, the carrier phase information and the time information; and the screening module is used for selecting one or more from the first positioning result, the second positioning result, the third positioning result and the fourth positioning result according to a preset rule to act as a final positioning result. The positioning speed and the positioning accuracy are enabled to be higher through combining advantages of the four types of positioning.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to a positioning method, system and navigation device. Background technique [0002] The popularity of satellite positioning and navigation systems has greatly facilitated people's work and life. At present, the most widely used global satellite positioning and navigation systems in the world mainly include the US Global Positioning System (GPS), Russia's GLONASS Satellite Navigation System (GLONASS), China's Beidou Satellite Navigation System (BDS), and the European Union's Galileo Satellite Navigation System (GALILEO). ). [0003] The basic principle of the satellite navigation system is to use multiple satellites in space to transmit signals to the receiver, multiply the signal propagation time by the speed of light to calculate the distance between the receiver and each satellite, and use comprehensive analysis to determine the position of the receiver. However, due to vari...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/43G01S19/40G01S19/24G01S19/25G01S19/28
CPCG01S19/24G01S19/258G01S19/28G01S19/40G01S19/43
Inventor 方先洋
Owner 深圳市安煋信息技术有限公司