Method for positioning signals of mobile node user in commercial center

A mobile node and business center technology, applied in wireless communication, electrical components, etc., can solve problems such as poor positioning accuracy and unstable wireless signal transmission, so as to improve stability, reduce signal coverage blind spots or weak coverage areas, and improve positioning The effect of precision

Inactive Publication Date: 2015-01-14
HAINAN UNIVERSITY
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Problems solved by technology

[0003] The purpose of the present invention is to provide a positioning method for mobile node user signals inside a commercial c

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  • Method for positioning signals of mobile node user in commercial center

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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] The present invention overcomes the deficiencies of the prior art and provides a positioning method for mobile node user signals inside a commercial center. The entire space is divided into subspaces of different sizes through MIMO technology and three-dimensional space splitting, and a multiple subspace is placed in each subspace. Antenna AP to achieve full coverage of the signal. In the present invention, for the currently researched short-distance wireless technology, the present invention adopts mature WIFI technology for wireless indoor positioning and has the following advantages: 1. T...

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Abstract

The invention provides a method for positioning signals of a mobile node user in a commercial center. The method comprises the steps that a three-dimensional space in the commercial center is split into a plurality of sub-spaces, and the sizes of the sub-spaces are determined; wireless access points are placed at the centers of all the sub-spaces, and coordinate values of the wireless access points in the whole three-dimensional space are recorded and determined; a path loss value is calculated according to the strength value of the signals received by the mobile node user; the path loss value is substituted into a visual distance path loss model, and then the distances between the mobile node user and all the wireless access points are calculated; according to the coordinate values of all the wireless access points and the distances, the coordinate position of the mobile node user is determined through a trilateration method. By means of the method, signal coverage blind areas or poor signal coverage areas existing in the commercial center can be effectively reduced or eliminated, the stability of WIFI signal transmission can be effectively improved, and finally the positioning accuracy can be improved.

Description

technical field [0001] The invention belongs to the technical field of signal positioning, and in particular relates to a positioning method for mobile node user signals inside a commercial center. Background technique [0002] During the transmission process of wireless signals in large indoor shopping malls with dense population, high mobility and complex propagation environment, due to reflection, scattering or delay, wireless signals will have multipath effects, especially when the flow of people is huge and people are constantly moving. business occasions. At the same time, there are blind spots, weak coverage, blocking and other factors in many coverage areas inside these commercial centers, which lead to the instability of most WIFI signal transmissions, thereby reducing the final positioning accuracy. Contents of the invention [0003] The purpose of the present invention is to provide a positioning method of a mobile node user signal inside a commercial center, a...

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Application Information

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IPC IPC(8): H04W64/00
CPCH04W64/003
Inventor 沈重朱雨豪张永辉
Owner HAINAN UNIVERSITY
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