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Indoor positioning system and method based on icon imaging

An indoor positioning and icon technology, applied in photo interpretation, navigation, instruments and other directions, can solve problems such as signals easily affected by indoor environmental factors, complex positioning system structure, light source imaging halo phenomenon, etc., to achieve icon distribution planning method Simple, reduce system complexity, and improve the effect of measurement accuracy

Inactive Publication Date: 2018-08-03
BAISE UNIV
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Problems solved by technology

[0003] What these positioning methods have in common is that a one-way or two-way communication connection must be established between the positioning base station and the positioning receiving end. Such a positioning system has a relatively complex structure and is easily affected by indoor environmental factors and interference from other signals.
In addition, the indoor positioning method based on light source imaging usually requires an image sensor to measure the azimuth, pitch angle, and distance from the light source to the imaging point of the signal receiving end in three-dimensional space. There is a serious halo phenomenon in the imaging, and the blurring of the imaging causes a large error in the measurement accuracy

Method used

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  • Indoor positioning system and method based on icon imaging

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[0031] 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.

[0032] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or t...

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Abstract

The invention relates to the technical field of indoor positioning, and in particular, relates to an indoor positioning system based on icon imaging, wherein the indoor positioning system comprises icons and an image positioning processing system. At least three non-collinear icons are arranged on an indoor top plane respectively, and the image positioning processing system includes a lens group,an image sensor and an image signal processing and positioning calculation module; the lens group is used for imaging the icons, the image sensor is used for imaging the icons and completing the photoelectric conversion function, and an imaging system is composed of the lens group and the image sensor; the imaging signal processing and positioning calculation module calculates out a coordinate ofa positioning point through signal amplifying, filtering, icon imaging point position determination, icon recognition, and calculation of the distance si of the icons from the imaging points on the image sensor imaging plane to the center of the imaging plane. The structure of the positioning system can be simplified and the positioning accuracy is greatly improved.

Description

【Technical field】 [0001] The invention relates to the technical field of indoor positioning, in particular to an indoor positioning system and method based on icon imaging. 【Background technique】 [0002] Indoor positioning technology is a necessary supplement to satellite positioning technology and has a very broad application prospect. Currently, indoor positioning methods mainly include indoor positioning methods based on visible light signal strength, indoor positioning methods based on fingerprint marks, and indoor positioning methods based on frequency division multiple access. Positioning method, visible light multi-receiving point geometric center positioning method, indoor positioning method based on light source imaging, in addition, there are positioning methods combining different indoor visible light positioning methods. [0003] What these positioning methods have in common is that a one-way or two-way communication connection must be established between the po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/20G01C11/04
CPCG01C11/04G01C21/206
Inventor 卢洪斌
Owner BAISE UNIV
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