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CSI indoor fingerprint positioning method and device based on dynamic fusion features

A fusion feature and fingerprint positioning technology, applied in the field of CSI indoor fingerprint positioning, can solve the problems of reducing positioning accuracy and positioning result deviation, and achieve the effect of improving accuracy, reducing feature fuzziness, and improving feature resolution

Active Publication Date: 2022-04-05
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is to say, the RSS signal is a superposition value of a multipath signal. For the information receiving end, the fluctuation degree of the RSS signal is greatly affected by the multipath effect. Accuracy

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  • CSI indoor fingerprint positioning method and device based on dynamic fusion features
  • CSI indoor fingerprint positioning method and device based on dynamic fusion features
  • CSI indoor fingerprint positioning method and device based on dynamic fusion features

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Embodiment Construction

[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0071] In the following, a basic introduction of a CSI indoor fingerprint positioning method and device based on dynamic fusion features provided by an embodiment of the present invention is firstly given.

[0072] In the related art, when the WiFi positioning technology is used for positioning, received signal strength (Received Signal Strength, RSS for short) is used as basic position information for indoor positioning. Generally, WiFi positioning technology...

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Abstract

The embodiment of the present invention provides a CSI indoor fingerprint positioning method and device based on dynamic fusion features, and configures parameters with environmental adaptability, that is, dynamically determines the fusion weight and matching threshold, and reduces the information caused by random noise in the fingerprint positioning system during the fingerprint formation process. The problem of feature fuzzification caused by the introduction of the fingerprint positioning method improves the feature resolution of the fingerprint positioning method, and also improves the accuracy of indoor positioning, and also provides a theoretical reference for the improvement of the positioning accuracy of the indoor positioning method.

Description

technical field [0001] The invention relates to the technical field of indoor positioning, in particular to a CSI indoor fingerprint positioning method and device based on dynamic fusion features. Background technique [0002] With the development of communication technology, location service, as a part of communication service, becomes more and more important. Fingerprint positioning technology is a commonly used technology in location services. At present, the Global Navigation Satellite System (GNSS for short) can provide high-precision positioning outdoors, but GNSS signals affect indoor positioning when buildings are blocked, so fingerprint positioning technology can be used for indoor positioning. In the indoor positioning method, the Wireless Fidelity (WiFi for short) positioning technology is widely used because of its convenient infrastructure deployment. [0003] In the positioning process using the WiFi positioning technology, received signal strength (Received ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00H04W4/33G01S5/02
CPCH04W64/00H04W4/33G01S5/0252
Inventor 邓中亮许允飞韩可付加伟
Owner BEIJING UNIV OF POSTS & TELECOMM