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A method, device and intelligent device for AP selection and positioning based on eight arrays

A positioning method and calibration point technology, applied in transmission monitoring, electrical components, transmission systems, etc., can solve problems such as poor anti-interference, low positioning accuracy, and poor versatility, and achieve high precision and high positioning accuracy , significant market value effects

Active Publication Date: 2022-05-03
SHENZHEN UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The inventor found that in the prior art, there are problems such as low AP selection and positioning accuracy, poor anti-interference performance, and poor versatility

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  • A method, device and intelligent device for AP selection and positioning based on eight arrays
  • A method, device and intelligent device for AP selection and positioning based on eight arrays
  • A method, device and intelligent device for AP selection and positioning based on eight arrays

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Embodiment Construction

[0061] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0062] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0063] AP (Access Point): That is, the wireless access point, which is used for the wireless switch of the wireless network and is also the core of the wireless network. Wireless AP is the access point for mobile com...

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Abstract

The invention discloses an AP selection and positioning method, device and intelligent device based on an eight-array map. The method includes: selecting a number of calibration points and a number of test points in an indoor environment; extracting position fingerprints for each calibration point to obtain the position Fingerprint database; according to the selected calibration points and test points, calculate the attenuation direction of the positioning area AP, including using the KNN algorithm to screen out several calibration points closest to the test point, and use the K-means algorithm to cluster the RSSI values. K adjacent reference points are clustered into two categories, and the attenuation direction of the AP is calculated from the coordinate centers of the two clusters; the four APs with the best attenuation direction combination are selected by using the direction interval standard based on the eight arrays; The AP calculates the estimated location of the test point. The invention has better positioning accuracy and anti-interference performance.

Description

technical field [0001] The present invention relates to the field of positioning technology, and in particular to a method, device, intelligent device and storage medium for AP selection and positioning based on eight arrays. Background technique [0002] AP (Access Point): That is, the wireless access point, which is used for the wireless switch of the wireless network and is also the core of the wireless network. Wireless AP is the access point for mobile computer users to enter the wired network. It is mainly used in broadband homes, buildings and parks, and can cover tens of meters to hundreds of meters. [0003] In order to reduce the energy consumption of smartphone positioning, an AP selection algorithm is proposed. Youssef M et al. proposed an algorithm based on the maximum mean value (Max Mean), and selected several APs with the largest average value of RSSI for online positioning. Chen Y et al. proposed an AP selection algorithm based on location information gain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00H04B17/318H04B17/345
CPCH04W64/003H04W64/006H04B17/318H04B17/345
Inventor 李清泉张德津薛卫星周宝定陈智鹏余科根
Owner SHENZHEN UNIV