Wifi-based location fingerprint positioning method

A fingerprint positioning and fingerprint technology, applied in measuring devices, nan, instruments, etc., can solve the problems of low accuracy of fingerprint database information and low online matching accuracy.

Inactive Publication Date: 2016-07-20
XIAN UNIV OF TECH
View PDF2 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a location fingerprint positioning method based on wifi, which solv

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-based location fingerprint positioning method
  • Wifi-based location fingerprint positioning method
  • Wifi-based location fingerprint positioning method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0044] The present invention is a wifi-based location fingerprint positioning method, the process is as follows figure 1 As shown, follow the steps below:

[0045] Step 1: Preparation process: deploy wireless AP (AccessPoint, access point) and select and mark reference points

[0046] Deploy n wireless APs in the entire area to be tested j , J=1, 2,...,n, and then select and mark m reference points in the entire area to be tested, to prepare for subsequent fingerprint collection of the reference point positions.

[0047] Step 2: The establishment of fingerprint database, the process is as follows figure 2 As shown, collecting data and using filtering technology to complete the establishment of the fingerprint database

[0048] Step 2.1: Perform multiple Wi-Fi signal acquisitions in different directions of each reference point (every 45° is one direction), a total ...

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 invention discloses a wifi-based location fingerprint positioning method. The method particularly comprises the following steps: 1, during a preparation process, wireless APs are deployed and reference points are selected and marked; 2, a fingerprint database is built, and data are acquired and a filtering technology is adopted to complete building of the fingerprint database; and 3, online matching is carried out, and a dynamic joint WKNN algorithm is adopted for indoor positioning. According to the wifi-based location fingerprint positioning method, a new data acquisition mode and the filtering technology are adopted for completing building of the fingerprint database, the dynamic joint WKNN algorithm is combined for indoor positioning, the fingerprint database information accuracy and the online matching precision are improved, and stable positioning is realized.

Description

technical field [0001] The invention belongs to the technical field of indoor positioning, and in particular relates to a location fingerprint positioning method based on wifi. Background technique [0002] With the rapid development of the mobile Internet and the wide application of pervasive computing technology, many public and commercial services have gradually increased the demand for location information of mobile users, such as tracking and monitoring of severe patients in the medical industry, anti-theft of babies in delivery rooms; product positioning when shopping in shopping malls , Collection of customer consumption habits; route navigation during travel, real-time location query, etc. The development of satellite-based outdoor technology has been very mature, but in the indoor environment, due to the interference of buildings and other obstacles, the GPS positioning accuracy is reduced or even impossible to locate. Outdoor location-related technologies can no lo...

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
IPC IPC(8): H04W64/00H04W4/04G01S11/06
CPCH04W64/00G01S11/06
Inventor 缪亚林张洁郝璐军赵立怡仪孝展姬田田
Owner XIAN UNIV OF TECH
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