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Novel indoor positioning method based on fingerprint cluster

An indoor positioning and fingerprint clustering technology, applied in the direction of instruments, character and pattern recognition, electrical components, etc., can solve the problems of high complexity in the positioning process, long response time of positioning algorithms, and reduced user experience, achieving low complexity, The effect of reducing overhead and improving positioning accuracy

Active Publication Date: 2014-03-12
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

However, this method has the disadvantages of high complexity in the positioning process and long response time of the positioning algorithm. It cannot realize the real-time positioning function of the mobile terminal while ensuring the accuracy, thereby reducing the user experience.

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  • Novel indoor positioning method based on fingerprint cluster
  • Novel indoor positioning method based on fingerprint cluster
  • Novel indoor positioning method based on fingerprint cluster

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Embodiment Construction

[0032] 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.

[0033] like figure 1 As shown, the indoor positioning system is divided into offline mode and online mode. The main work in offline mode is to establish the fingerprint database of the target location area. The fingerprint information on each sampling point preset in the target positioning area is collected and recorded in the database. Further, by using the similarity of the fingerprints of indoor locations with similar geographical locations, the collected indoor fingerprint information is pre...

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Abstract

The invention provides a novel indoor positioning method based on a fingerprint cluster. The novel indoor positioning method comprises a hierarchical indoor positioning method based on an affinity propagation cluster algorithm and a nearest neighbor algorithm which are combined together. Collected indoor fingerprint information is preclassified by effectively using the similarity of indoor fingerprints with close geographical positions, and fingerprints in a fingerprint database are classified into different subsets; furthermore, the time for positioning resolving is greatly shortened by a method for hierarchically resolving positioning results according to the fingerprint sets which are obtained by classification and have characteristics; meanwhile, the precision and the stability of an indoor positioning system are guaranteed.

Description

technical field [0001] The invention relates to an indoor positioning method, in particular to an indoor positioning method based on fingerprint clustering and matching in an indoor wireless system. Background technique [0002] With the rapid development of mobile Internet technology, the concept of smart city has been proposed and rapidly popularized, location-based services (Location Based Service, LBS) have received more and more attention. The area of ​​life shows great vitality. Using smart terminals as a platform, WLAN-based indoor positioning has become a research hotspot in the fields of ubiquitous computing and location awareness in recent years because it can be realized in pure software and the cost of the positioning system is low. 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 needs of full coverage of wireless network in smart citie...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G06K9/64
Inventor 黄正勇王帆夏俊赵亦燃俞晖
Owner SHANGHAI JIAO TONG UNIV
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