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A wireless positioning method and system

A wireless positioning and position prediction technology, applied in the field of positioning and navigation, can solve the problems of low positioning accuracy and robustness, and achieve the effects of improving positioning accuracy and robustness, maintaining accuracy, and reducing equipment and maintenance costs.

Active Publication Date: 2022-01-18
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a wireless positioning method and system to solve the defects of low positioning accuracy and robustness or the need for additional equipment in the prior art, so as to achieve fast and accurate positioning of indoor targets

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  • A wireless positioning method and system
  • A wireless positioning method and system
  • A wireless positioning method and system

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Embodiment Construction

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0060] figure 1 is a wireless positioning method provided by an embodiment of the present invention, such as figure 1 As shown, it mainly includes but not limited to the following steps:

[0061] Step S1, collecting received signal strength data of all Wi-Fi access points at the point to be tested;

[0062] Step S2, constructing a fingerprint v...

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Abstract

Embodiments of the present invention provide a wireless positioning method and system, comprising: collecting received signal strength data of all Wi-Fi access points at the point to be measured; constructing a fingerprint vector according to the received signal strength data; determining the fingerprint according to the fingerprint vector Image; the fingerprint image is input into the trained domain confrontation neural network model to obtain the predicted position corresponding to the point to be measured output by the domain confrontation neural network model. The wireless positioning method and system provided by the embodiments of the present invention use widely deployed Wi-Fi devices as carriers, and use deep learning methods to fully mine the essential positioning information in fingerprint images. On the basis of traditional RSS fingerprints, the extraction can overcome device heterogeneity Robust characteristics of stability and time fluctuation, thereby improving positioning accuracy and robustness, enabling indoor high-precision positioning, and at the same time, it can be automatically updated to maintain long-term positioning accuracy and reduce equipment and maintenance costs.

Description

technical field [0001] The present invention relates to the technical field of positioning and navigation, in particular to a wireless positioning method and system. Background technique [0002] Accurate and stable indoor location-based services (ILBS) are a key enabler for widespread deployment in many applications. In order to provide ILBS, various wireless indoor positioning technologies such as Wi-Fi, RFID, acoustic signals, etc. are proposed nowadays. Among them, due to the widespread deployment and availability of WiFi infrastructure, indoor positioning based on W-iFi fingerprints has become one of the most attractive solutions. The positioning technology based on Wi-Fi fingerprints mainly includes two stages: offline and online. Distribute information and build a fingerprint database; the online stage includes the positioning system providing positioning services based on the fingerprint database. The user collects RSS fingerprints at unknown locations and uploads...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00H04W84/12H04W4/33H04B17/318G01S5/02G06N3/04G06N3/08
CPCH04W64/00H04W84/12H04W4/33H04B17/318G01S5/0252G06N3/08G06N3/045
Inventor 杨铮李丹阳徐京傲
Owner TSINGHUA UNIV
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