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Indoor positioning method and system based on single AP and single antenna

An indoor positioning and single-antenna technology, applied in specific environment-based services, wireless communications, electrical components, etc., can solve the problems of high position variability, low accuracy and variability of indoor positioning technology, and achieve accurate positioning.

Pending Publication Date: 2021-11-19
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the accuracy of the existing indoor positioning technology is not high, it is easily affected by the interference of the multipath effect, and the technical problem of the variability of the position height will be caused as time goes by, the purpose is to provide a technology based on The indoor positioning method and system of single AP and single antenna can achieve more accurate positioning, avoid being easily affected by multipath interference, and avoid the variability of position height over time

Method used

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  • Indoor positioning method and system based on single AP and single antenna
  • Indoor positioning method and system based on single AP and single antenna

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Embodiment 1

[0039] Please refer to Figure 1 to Figure 2 , an indoor positioning method based on a single AP and a single antenna provided by an embodiment of the present invention includes:

[0040] S101. Set up a single AP, and rotate the single antenna of the AP, so that the radiation signal received by the device changes with the rotation of the antenna;

[0041] S102. Collect fingerprint information of multiple reference points, where the multiple reference points are located within the signal radiation range of the AP;

[0042] S103, constructing a location information fingerprint library according to the location information and fingerprint information of multiple reference points;

[0043] S104, collecting real-time fingerprint information of the test point;

[0044] S105. Compare the real-time fingerprint information of the test point with the information in the location information fingerprint database to obtain the coordinate information of the test point.

[0045] As a spec...

Embodiment 2

[0052] Please refer to Figure 1 to Figure 2 , an embodiment of the present invention provides an indoor positioning system based on a single AP and single antenna, including: a single AP;

[0053] A rotary drive mechanism, used to rotate the single antenna of the AP, so that the radiation signal received by the device changes with the rotation of the antenna;

[0054] A first collection module, configured to collect fingerprint information of multiple reference points, where the multiple reference points are located within the signal radiation range of the AP;

[0055] A building block for constructing a location information fingerprint library according to location information and fingerprint information of multiple reference points;

[0056] The second collection module is used to collect the real-time fingerprint information of the test point;

[0057] The comparison processing module is used for comparing the real-time fingerprint information of the test point with the ...

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Abstract

The invention discloses an indoor positioning method and system based on a single AP and a single antenna, and the method comprises the steps: setting a single AP, rotating the single antenna of the AP, and enabling a radiation signal received by equipment to change along with the rotation of the antenna; collecting fingerprint information of a plurality of reference points; constructing a position information fingerprint database according to the position information and the fingerprint information of the plurality of reference points; collecting real-time fingerprint information of the test points; and comparing the real-time fingerprint information of the test point with information in a position information fingerprint database to obtain coordinate information of the test point. Compared with an AP without a rotating antenna in the prior art, the collected fingerprint information has more information of one dimension, fingerprint information with higher granularity can be obtained, and positioning of a reference point and a test point is more accurate.

Description

technical field [0001] The present invention relates to the technical field of wireless communication and indoor positioning, in particular to an indoor positioning method and system based on a single AP and single antenna. Background technique [0002] In the indoor environment, with the rapid growth of people's demand for location-based services, various indoor positioning technologies have been developed. The indoor positioning technology based on WiFi has attracted more and more people's attention because of its low cost and high precision. However, in practical applications, the accuracy of WiFi-based indoor positioning technology will be limited due to the influence of noise, diffraction and multipath effects. [0003] The indoor positioning method based on WiFi AP commonly uses the fingerprint positioning method. The core idea of ​​fingerprint technology is that the wireless channel from the mobile device to the base station is uniquely determined by the scattering ...

Claims

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Application Information

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IPC IPC(8): H04W64/00H04W4/33H04W88/08
CPCH04W64/00H04W4/33H04W88/08
Inventor 段垚鑫银泽聂文迪
Owner CHONGQING UNIV OF POSTS & TELECOMM
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