Unlock instant, AI-driven research and patent intelligence for your innovation.

Positioning method, system and equipment and storage medium

A positioning method and technology for a point to be located, applied in the field of positioning, can solve the problems of large positioning error, inaccurate positioning, lost fingerprint information, etc., and achieve the effect of improving positioning accuracy, improving dimensionality reduction effect, and overcoming low positioning accuracy.

Active Publication Date: 2019-04-16
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, existing positioning schemes that use RSSI fingerprints or CSI fingerprints (such as FILA algorithm, ConFi algorithm) alone will lose part of the fingerprint information, resulting in inaccurate positioning and large positioning errors.

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
  • Positioning method, system and equipment and storage medium
  • Positioning method, system and equipment and storage medium
  • Positioning method, system and equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] refer to figure 1 , figure 1 It is a method flowchart of a specific embodiment of a positioning method in the present invention, a positioning method, comprising the following steps:

[0050] An information collection step, collecting position information of multiple reference points in the positioning area and mixed fingerprints from the wireless signal transmitter, where the mixed fingerprints include RSSI fingerprints and CSI fingerprints;

[0051] A dimensionality reduction step, performing dimensionality reduction processing on the mixed fingerprint to obtain a dimensionality-reduced mixed fingerprint;

[0052] The model training step is to train the reference point classification model according to the dimensionality reduction mixed fingerprint;

[0053] The reference point acquisition step is to obtain multiple reference points and their confidence levels according to the dimensionality reduction hybrid fingerprint of the point to be located and the reference p...

Embodiment 2

[0072] A positioning system comprising:

[0073] An information collection unit, configured to collect position information of multiple reference points in the positioning area and mixed fingerprints from the wireless signal transmitter, where the mixed fingerprints include RSSI fingerprints and CSI fingerprints;

[0074] A dimensionality reduction unit is used to perform dimensionality reduction processing on the mixed fingerprint to obtain a dimensionality-reduced mixed fingerprint;

[0075] A model training unit for training a reference point classification model according to the dimensionality reduction mixed fingerprint;

[0076] The reference point acquisition unit is used to obtain a plurality of reference points and their confidence levels according to the dimensionality reduction hybrid fingerprint of the point to be located and the reference point classification model, and the confidence level of the reference point is greater than the preset confidence level;

[00...

Embodiment 3

[0079] A positioning system comprising:

[0080] The wireless signal transmitter is used to transmit wireless signals;

[0081] The mobile terminal is used to collect the position information of multiple reference points in the positioning area and the mixed fingerprint from the wireless signal transmitter, the mixed fingerprint includes RSSI fingerprint and CSI fingerprint, wherein the mobile terminal can be a notebook computer;

[0082] A dimensionality reduction unit is used to perform dimensionality reduction processing on the mixed fingerprint to obtain a dimensionality-reduced mixed fingerprint;

[0083] A model training unit for training a reference point classification model according to the dimensionality reduction mixed fingerprint;

[0084]The reference point acquisition unit is used to obtain a plurality of reference points and their confidence levels according to the dimensionality reduction hybrid fingerprint of the point to be located and the reference point cl...

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 positioning method, system and equipment and a storage medium. According to the positioning method, a position and a mixed fingerprint of a reference point are acquired, reduction of dimensionality is carried out on the mixed fingerprint to obtain a dimensionality reduction mixed fingerprint, a reference point classification model is trained through the dimensionality reduction mixed fingerprint, the reference point with a confidence degree larger than a preset confidence degree and the confidence degree of the reference point can be obtained by utilizing the dimensionality reduction mixed fingerprint of a to-be-positioned point and the reference point classification model, then the obtained mixed fingerprints, the confidence degree and position information of thereference point are used to get the position of the to-be-positioned point, and the technical problems that the positioning precision is low and the positioning efficiency is low due to the fact thatsingle fingerprint information is used in the prior art are overcome, so that the positioning efficiency and the positioning precision are effectively improved.

Description

technical field [0001] The present invention relates to the field of positioning, in particular to a positioning method, system, equipment and storage medium. Background technique [0002] RSSI, Received Signal Strength Indicator, signal strength indicator. [0003] CSI, Channel State Information, channel state information. [0004] WiFi positioning technology is currently one of the research focuses in academia and industry. Currently, positioning services in outdoor scenarios are mainly provided by GPS and cellular network positioning systems. However, due to the increasingly serious phenomenon of urban canyons, the positioning accuracy is seriously affected. Due to the popularity of WiFi hotspots, WiFi positioning technology has gradually become a research hotspot. Due to its simple and easy-to-collect features, WiFi signal strength information has been widely used in current WiFi positioning technologies. RSSI information can be easily obtained using any wireless re...

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): G01S5/02
CPCG01S5/0257Y02D30/70
Inventor 张鸿波堵宏伟刘闯
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL