Indoor positioning and navigation method by use of multi-information fusion

A multi-information fusion, indoor positioning technology, applied in satellite radio beacon positioning systems, ground navigation, instruments, etc., can solve problems such as low accuracy and limited indoor structure, reduce limitations, widen application value, and improve indoor The effect of positioning accuracy

Pending Publication Date: 2019-02-01
CHONGQING UNIV OF POSTS & TELECOMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up the above, the existing indoor positioning technology has its own advantages and disadvantages, and the single method is often limited by the indoor structure, or the accuracy is not high
Therefore, the existing indoor navigation and positioning technology still needs to be improved

Method used

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  • Indoor positioning and navigation method by use of multi-information fusion
  • Indoor positioning and navigation method by use of multi-information fusion
  • Indoor positioning and navigation method by use of multi-information fusion

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Embodiment Construction

[0052] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0053] figure 1 It is a flow chart of a multi-information fusion indoor positioning and navigation method, figure 2 It is the floor plan of indoor space distribution information, image 3 It is a schematic structural diagram of a multi-information fusion indoor positioning and navigation method system, as shown in the figure: a multi-information fusion indoor positioning and navigation method provided by the present invention includes the following steps:

[0054] S1: Acquire the indoor spatial distribution information plan including GPS position information, geomagnetic data information and path data;

[0055] S2: The mobile terminal calculates the current position ...

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Abstract

The invention discloses an indoor positioning and navigation method by use of multi-information fusion and relates to an indoor navigation and positioning method. The method comprises the following steps of firstly, acquiring an indoor space distributed information planar graph including GPS (Global Positioning System) position information, geomagnetic data information and path data; then, enabling a mobile terminal to calculate a current position through built-in inertial sensor information; then, acquiring the geomagnetic data of the current position, and implementing indoor geomagnetic positioning through a geomagnetic matching algorithm; furthermore, correcting the current position according to a bluetooth base station of an indoor correction point; and finally, obtaining position information of a user by use of multi-information fusion, and implementing indoor navigation in combination with the path data of the planar graph. In combination with multiple positioning methods, the indoor positioning precision is effectively improved and the GPS information of an indoor position is acquired, the indoor path navigation is completed, and the method has wide application values.

Description

technical field [0001] The invention relates to an indoor positioning and navigation method, in particular to a multi-information fusion indoor positioning and navigation method. Background technique [0002] Today, the GPS system can effectively solve outdoor navigation problems. For example, almost every car is equipped with a GPS receiver as a car navigation. Because the satellite signal will be seriously attenuated when it penetrates the wall, it is impossible to receive a sufficiently accurate GPS signal indoors for positioning and navigation. In large indoor areas, such as airports, museums, underground shopping malls, underground substation rooms, etc., the problem of indoor positioning and navigation is particularly prominent. [0003] As smart terminals such as mobile phones begin to build rich high-precision and reliable sensors, indoor positioning has increasingly become one of the hotspots of people's attention and research. At present, there are mainly two ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/42G01C21/08
CPCG01C21/08G01S19/42
Inventor 段盼胡蓓毛明轩段其昌张恒瑞杨增瑞黄晓刚马毅
Owner CHONGQING UNIV OF POSTS & TELECOMM
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