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A landmark-based pedestrian positioning correction method and system

A technology of landmarks and pedestrians, applied in the field of communication, can solve problems such as pedestrian positioning errors

Active Publication Date: 2021-01-29
BEIJING FINE WAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of positioning errors in pedestrian dead reckoning existing in the background technology, the present invention provides a pedestrian positioning correction method and system based on landmarks

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  • A landmark-based pedestrian positioning correction method and system
  • A landmark-based pedestrian positioning correction method and system
  • A landmark-based pedestrian positioning correction method and system

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Embodiment Construction

[0056] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0057] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a pedestrian positioning correction method based on landmarks. The method includes: confirming the area to be walked, and obtaining landmark information in the area to be walked; the landmarks include physical landmarks, geomagnetic landmarks and WIFI landmarks; real-time collection of pedestrian walking The travel parameters in the process, the travel parameters include the angular velocity signal of the pedestrian travel, the magnetic field strength signal of the pedestrian's location, and the WIFI signal of the pedestrian's location; when the travel parameters meet the preset rules, match the area according to the travel parameters According to the landmark information within, the matching landmarks are obtained; the pedestrian positioning calculation of the current step is corrected according to the matching landmarks; the method and system correct the positioning of each step of the pedestrian heading calculation, avoiding the accumulation of positioning errors; Such landmarks ensure accurate correction in the area where pedestrians are to travel; pedestrian positioning results corrected by the method and system can meet the demand for high-precision positioning and navigation to the greatest extent.

Description

technical field [0001] The present invention relates to the field of communication technology, and more specifically, to a landmark-based pedestrian positioning correction method and system. Background technique [0002] Positioning and navigation has become the most basic requirement for people's daily travel, especially in some special fields, which put forward higher requirements for the accuracy of positioning and navigation. With the enrichment of usage scenarios, the accuracy of traditional positioning and navigation based on beacons and Issues such as base station communication have become prominent. For example, indoor positioning and navigation are affected by the obstruction of house walls; pedestrian dead reckoning technology has emerged as the times require, and pedestrian dead reckoning technology senses the acceleration of people during travel through inertial measurement. , angular velocity, magnetic force and other data, and use these data to calculate the st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/20G01C21/16
CPCG01C21/16G01C21/20G01C21/188G01C21/206
Inventor 徐枫吕明杜华睿田晓春
Owner BEIJING FINE WAY TECH CO LTD
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