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Indoor positioning method and device

An indoor positioning and positioning terminal technology, applied in the field of positioning, can solve the problems of poor positioning accuracy, poor GPS signal, high cost, etc., to achieve the effects of low algorithm complexity, improved positioning efficiency, and reduced positioning costs

Pending Publication Date: 2020-09-29
邓华
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AI Technical Summary

Problems solved by technology

The satellite positioning system has high precision, but the disadvantage is that it must be able to receive satellite signals, and once it enters the room, the positioning method will fail
The signal of the wireless base station is stable, but the positioning accuracy is generally only up to 100 meters, which cannot meet the indoor positioning accuracy requirements indoors.
[0003] Indoor positioning requires high precision, generally within a few meters. Due to GPS signal occlusion, the indoor GPS signal is poor, and indoor positioning cannot be performed, and the accuracy of base station positioning cannot meet the accuracy requirements. Usually, indoor positioning methods include: use WIFI fingerprint positioning, but WIFI usually needs to lay out a large number of anchor points in advance and conduct fingerprint training, which requires a lot of time and effort, and the investment cost is high.

Method used

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] figure 1 It is a structural diagram of an indoor positioning system. In this positioning system, it includes a server, an access point, a terminal to be positioned, and a terminal with a known location. The server is connected to the access point, and a large number of terminals with known locations and terminals to be positioned are distributed indoors. Such as shopping malls, stadiums, etc. The terminal communicates with the server through the access point, where the server stores location information B(x,y) of the terminal whose location is known.

[0029] figure 2 The positioning step is implemented for the present invention, specifically including:

[0030] S100. Obtain a positioning request sent by a terminal to be positioned;

[0...

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Abstract

The invention provides an indoor positioning method. Positioning is carried out through surrounding mobile terminals with known positions; the positioning method does not need to arrange a large number of anchor points and fingerprint training, positioning cost can be reduced, meanwhile, when the mobile terminal with the known position is used for positioning the unknown terminal position, the signal intensity matrix is clustered by considering the signal intensity conditions of the terminals at different known positions and combining the signal intensity of the terminals at the known positions and the signal intensity distribution conditions of the unknown terminals, and then the unknown terminals are positioned according to the clustering conditions, so that the positioning accuracy andthe positioning efficiency are improved.

Description

technical field [0001] The present invention relates to positioning technology, and more specifically, to an indoor positioning method and device. Background technique [0002] Outdoor positioning mainly relies on satellite positioning systems or wireless base stations for positioning. The satellite positioning system has high precision, but the disadvantage is that it must be able to receive satellite signals, and once it enters the room, the positioning method will fail. However, the signal of the wireless base station is stable, but the positioning accuracy is generally only up to 100 meters, which cannot meet the indoor positioning accuracy requirements indoors. [0003] Indoor positioning requires high precision, generally within a few meters. Due to GPS signal occlusion, the indoor GPS signal is poor, and indoor positioning cannot be performed, and the accuracy of base station positioning cannot meet the accuracy requirements. Usually, indoor positioning methods inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/021H04W4/33H04W4/02H04W64/00G06K9/00G06K9/62
CPCH04W4/021H04W4/33H04W4/023H04W64/00G06F2218/00G06F18/23
Inventor 邓华
Owner 邓华
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