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Indoor positioning method based on WiFi

An indoor positioning and location point technology, which is applied to services based on location information, services based on specific environments, electrical components, etc. It can solve problems such as large positioning interference, poor positioning accuracy, and equipment that needs to be rearranged.

Active Publication Date: 2021-04-20
四川山高聚慧物联网科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a WiFi-based indoor positioning method, which can solve the problems of large positioning interference and poor positioning accuracy in the prior art, and the problems of rearranging equipment for public places with different indoor patterns

Method used

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  • Indoor positioning method based on WiFi
  • Indoor positioning method based on WiFi
  • Indoor positioning method based on WiFi

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] refer to figure 1 , is a schematic flowchart of a WiFi-based indoor positioning method according to an embodiment of the present invention. The WiFi-based indoor positioning method of the embodiment of the present invention includes the following steps:

[0049] S1: Select multiple reference location points indoors, and collect the WiFi signal strength of each WiFi signal source at each reference location point.

[0050] Wherein, the indoor positions ...

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Abstract

The invention discloses an indoor positioning method based on WiFi, and the method comprises the steps: selecting a plurality of reference position points indoors, and collecting the WiFi signal intensity of each WiFi signal source at each reference position point; performing noise reduction processing on the WiFi signal intensities of the plurality of WiFi signal sources of each reference position point to obtain a signal intensity characteristic value of each reference position point; when positioning is carried out, acquiring WiFi signal intensities of a plurality of WiFi signal sources collected by a current position point, and carrying out noise reduction processing to obtain a signal intensity characteristic value of the current position point; and performing similarity comparison on the signal intensity characteristic value of the current position point and the signal intensity characteristic value of each reference position point, and setting the reference position point with the highest similarity as the current position point. The problems that in the prior art, positioning interference is large, positioning precision is poor, and equipment needs to be rearranged for public places with different indoor patterns can be solved.

Description

technical field [0001] The present invention relates to the technical field of indoor positioning, in particular to a WiFi-based indoor positioning method. Background technique [0002] Satellite positioning technology has penetrated into people's lives, and with RTK (Real-time kinematic, real-time dynamic) and other technologies, the positioning accuracy has been improved to the centimeter level, but in indoor positioning, there are still no signals or great positioning errors The problem. [0003] At this stage, the main commercial indoor positioning methods are Bluetooth positioning and WiFi positioning. The main idea of ​​Bluetooth positioning is to deploy a Bluetooth gateway in the area that needs to be positioned. When a user holding a Bluetooth terminal device (such as a Bluetooth bracelet) enters the Bluetooth signal coverage of the Bluetooth gateway, the Bluetooth gateway can sense the broadcast of the Bluetooth bracelet. Signal, and then measure and calculate the...

Claims

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Application Information

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IPC IPC(8): H04W4/02H04W4/021H04W4/33H04W64/00
Inventor 曾盈皓陈东辉李珣灏刘堃许明张倩段亭亭
Owner 四川山高聚慧物联网科技有限公司
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