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Global positioning system positioning method and computer program product

A technology of global positioning system and azimuth, which is applied in the field of navigation system, and can solve problems such as no suggestion of GPS positioning error

Pending Publication Date: 2022-07-15
威利德吉欧股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, there appears to be no suggestion in the art to handle large amounts of GPS positioning errors by applying deep learning / machine learning techniques to multiple time samples to create individual correction functions for multiple known positions as a function of individual GPS coordinates and satellite data

Method used

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  • Global positioning system positioning method and computer program product
  • Global positioning system positioning method and computer program product
  • Global positioning system positioning method and computer program product

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Embodiment Construction

[0034] figure 1 is an illustration of a system 10 according to one embodiment of the present invention. The system 10 displays a pedestrian 11 located in a region of interest holding a smartphone 12 having a built-in GPS module that receives GPS data from at least three satellites 13, 13' and 13" and The coarse location is calculated in a known manner using triangulation. In this specification and the appended claims, we refer to the coarse location as the GPS coordinates of the GPS device. Vehicles 14, 14' that drive randomly through the area of ​​interest GPS data is also received from satellites and the approximate position of each vehicle is determined. However, these vehicles are equipped with WAZE TM , SATNAV TM and similar navigation systems, and similar devices that improve the accuracy of GPS coordinates in order to know the correct or true position of the vehicle. For clarity, "true" or "correct" does not imply that the corrected position is absolutely precise, bu...

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PUM

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Abstract

A method of creating a correction function for improving the accuracy of a global positioning system device collects a plurality of time samples at a plurality of known locations, where each time sample consists of global positioning system coordinates and satellite data associated with a plurality of satellites. The satellite data comprises or allows to determine (i) a satellite azimuth angle and an elevation angle of a related satellite, (ii) a signal-to-noise ratio of a received signal from the related satellite; and optionally (iii) a pseudo-range. For each time sample, a respective error between the known position and the respective global positioning system coordinates is calculated, and an error correction function is created by applying a deep learning / machine learning technique to the plurality of time samples, the error correction function is a function of the respective global positioning system coordinates and the satellite data.

Description

technical field [0001] The present invention relates to a navigation system and method especially for use by pedestrians. Background technique [0002] With the advent of smartphones, Global Positioning System (GPS) has become a major navigation method widely used by pedestrians and drivers. On top of that, pedestrians in urban areas use smartphone GPS instead of traditional paper maps. [0003] However, mainly in urban areas, it is inconvenient, difficult and sometimes impossible for pedestrians to use GPS due to the low positioning accuracy of mobile phone GPS systems. Furthermore, due to the low accuracy of the mobile phone's magnetometer, pedestrians do not have the azimuth data needed for navigation. [0004] In urban areas, the main reason for the inaccuracy of GPS systems is that tall buildings obstruct the view of the satellites. Additionally, signals from satellites with no direct line of sight can be reflected by tall buildings, picked up by pedestrians' GPS, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/39G01S19/40G01S19/07G01S19/51G01S19/41
CPCG01S19/071G01S19/41G01S5/163G01S5/016H04W4/029G01S19/396H04W4/023
Inventor 兹维·拉皮多特埃胡德·蒂罗什
Owner 威利德吉欧股份有限公司