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Indoor positioning method based on signal receiving strength indicator correlation

A technology of signal reception strength and indoor positioning, which is applied to services based on location information, wireless communication, and beacon systems using radio waves. It can solve problems such as reducing positioning accuracy, improve positioning accuracy, improve data accuracy, and overcome The effect of terminal differences

Active Publication Date: 2015-01-21
SHANGHAI JIAO TONG UNIV
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AI Technical Summary

Problems solved by technology

Subsequently, due to the difference of terminals, the difference of fingerprint data is significant, which reduces the positioning accuracy

Method used

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  • Indoor positioning method based on signal receiving strength indicator correlation
  • Indoor positioning method based on signal receiving strength indicator correlation
  • Indoor positioning method based on signal receiving strength indicator correlation

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0030]Aiming at the deficiencies of the prior art, the present invention proposes a novel indoor positioning algorithm based on the correlation of signal reception strength indication, that is, an accurate signal reception strength indication correlation positioning method (Refined signal reception strength indication Relative Relationship, RE3). This method is suitable for indoor positioning crowdsourcing mode scenarios. The method includes the definition and quantification process of the correla...

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Abstract

An indoor positioning method based on signal receiving strength indicator correlation includes the steps that correlation transformation of the signal receiving strength indicator is performed, and similarity calculation and positioning matching are performed on correlation fingerprint data. Through the technical scheme, the difference between terminals in a crowdsourcing mode can be overcome, and the stability and the positioning accuracy of an indoor positioning system are kept.

Description

technical field [0001] The invention relates to the technical field of indoor positioning, in particular to an indoor positioning method based on signal reception strength indication correlation. Background technique [0002] With the rapid development of mobile Internet technology, the concept of smart city has been proposed and rapidly popularized, and location-based services (Location Based Service, LBS) have received more and more attention. The area of ​​life shows great vitality. With the terminal as the platform, the indoor positioning based on Wireless Local Area Networks (WLAN) has become a research hotspot in the field of ubiquitous computing and location awareness in recent years because it can be realized in a pure software manner and the cost of the positioning system is low. . [0003] The high coverage rate of WLAN hotspot service is the possibility to ensure the realization of precise indoor and outdoor seamless positioning technology, which just meets the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00
CPCG01S1/08H04W4/04
Inventor 俞晖黄正勇夏俊陈嘉伟
Owner SHANGHAI JIAO TONG UNIV
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