WiFi data-based position fingerprint library creation method

A fingerprint library and data technology, applied in location-based services, transmission monitoring, electrical components, etc., to achieve the effect of improving matching speed, reducing redundancy, and avoiding uneven distribution of fingerprint information

Active Publication Date: 2019-11-05
BEIHANG UNIV +4
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The technical problem mainly solved by the present invention is to provide a location fingerprint database creation method based on WiFi data. Defects brought by the model, improve the adaptability and positioning accuracy of the propagation model

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • WiFi data-based position fingerprint library creation method
  • WiFi data-based position fingerprint library creation method
  • WiFi data-based position fingerprint library creation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0070] In order to more clearly illustrate the technical solution of the present invention, the claims of the present invention will be further described in detail below in conjunction with specific embodiments and drawings. It can be understood that the following drawings only show some embodiments of the present invention, so It should not be regarded as a limitation on the scope, and any limited number of modifications made by anyone within the scope of the claims of the present invention are still within the scope of the claims of the present invention.

[0071] It should be understood that, in the description of the present invention, it should be explained that the orientation or positional relationship indicated by the terms "upper", "lower" and so on is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship indicated by the product of the invention. Orientation or positional relationship that is conventio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The method is suitable for the technical field of WiFi data positioning, and discloses a WiFi data-based position fingerprint database creation method. The method comprises the following steps: creating a blank grid fingerprint database, dividing the longitude and latitude of a fingerprint database area to be divided into grid areas, setting two points as diagonal lines of a rectangular area to obtain blank grid fingerprints, and establishing the blank grid fingerprint database, so that the redundancy of sample points can be reduced, and the matching rate of points to be positioned and the sample points in the positioning process can be increased; and fingerprint database filling: filling the longitude and latitude positions corresponding to the created blank grid fingerprint database withthe WiFi signal intensity data accumulatively uploaded by the user and the measured WiFi signal intensity data according to the signal intensity data positions. Due to the fact that the plane grid fingerprint database is adopted, the problem that the positioning accuracy of a guide system is reduced when the data are used for positioning subsequently due to uneven fingerprint information distribution can be effectively solved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication and Internet of Things, in particular to a method for creating a location fingerprint database based on WiFi data. Background technique [0002] In recent years, the WiFi indoor positioning solution relying on indoor hotspots for positioning has attracted much attention. This positioning method has the advantages of wide indoor coverage and low deployment cost. The present invention proposes an indoor location fingerprint database based on WiFi data and a fitting scheme, which is a part of the indoor positioning system of the WiFi fingerprint database, and mainly describes the establishment and fitting process of the fingerprint database. [0003] In an indoor environment, the WiFi signal strength value received at each location is closely related to the AP distance and the surrounding environment. We usually call this point a fingerprint point, and the fingerprint point and t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/021H04W4/029H04B17/318
CPCH04W4/021H04W4/029H04B17/318
Inventor 门华江王祖林王宁君
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap