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Personal indoor positioning system based on inertial navigation aiding geomagnetism

An indoor positioning and geomagnetic technology, applied in navigation, ground navigation, surveying and navigation, etc., can solve the problems of unfavorable widespread use, high cost, and complex construction, and achieve the effects of economy and convenience, narrow matching range, and good indoor positioning accuracy

Inactive Publication Date: 2015-11-11
WUHAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the above positioning method needs to build complex peripheral hardware infrastructure and hardware auxiliary equipment, which is very expensive and is not conducive to widespread use

Method used

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  • Personal indoor positioning system based on inertial navigation aiding geomagnetism
  • Personal indoor positioning system based on inertial navigation aiding geomagnetism
  • Personal indoor positioning system based on inertial navigation aiding geomagnetism

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Embodiment Construction

[0033] In order to further illustrate the technical scheme of the present invention, with reference to the attached Figure 1-4 The present invention will be described in detail.

[0034] The personal indoor positioning system based on inertial navigation assisted geomagnetism that the present invention relates to is used for the real-time positioning of the carrier when it moves indoors, including an Android smart phone (with a high-speed multi-core or single-core CPU processor) arranged on the mobile carrier, The mobile carrier is a mobile individual capable of carrying an Android smart phone, and can be moved autonomously or passively (if the mobile carrier is a person or a movable object without a smart device, the mobile phone is controlled by the person or the movable object to move, if the mobile carrier is mobile smart body, the mobile phone is controlled by the smart body and can communicate with the mobile phone); the smart phone is equipped with a gyroscope, an acce...

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Abstract

The invention relates to a personal indoor positioning system based on inertial navigation aiding geomagnetism. The personal indoor positioning system without needing to rely on an external device can be realized by the otherness of the earth magnetic field on different spots, a smart phone based on an Android platform and the selective appropriate geomagnetic matching algorithm; an inertial navigation technology is utilized for obtaining the relative position of a mobile individual, and then local search is performed and an optimum magnetic field spot is matched by an MSD (mean square displacement) geomagnetic localization algorithm, the relatively accurate parameter of the position of the mobile individual can be obtained, so that the mobile phone indoor positioning function can be realized. According to the combined locate mode based on the inertial navigation aiding geomagnetism, the geomagnetic information matching efficiency is effectively improved, the higher indoor positioning accuracy is obtained, the personal indoor positioning can be realized by only needing a built-in sensor device of the mobile phone and no need to rely on an additional device erected outside, the usage is convenient, the cost is low and the personal indoor positioning system is easy to be popularized.

Description

technical field [0001] The patent of the present invention relates to the field of mobile phone indoor positioning, in particular to a personal indoor positioning system based on inertial navigation-assisted geomagnetism. Background technique [0002] With the rapid development of science and technology, research on the direction of mobile positioning technology has made great progress in recent years, including GPS indoor positioning, optical tracking positioning, Bluetooth positioning, Wifi indoor positioning, Zigbee indoor positioning, etc. Including GoogleMap, Gaode map, GoogleMap, deer hunting, etc., but these positioning methods require additional corresponding equipment, such as GPS positioning requires satellites, Wifi positioning needs to set up enough Wifi nodes, and Zigbee indoor positioning requires at least three indoor positioning. The above Zigbee nodes constitute a wireless sensor module. However, the above-mentioned positioning method needs to build complex...

Claims

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Application Information

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IPC IPC(8): G01C21/16G01C21/08G01C21/20
CPCG01C21/165G01C21/08G01C21/206
Inventor 宋镖程磊兰婷齐强强
Owner WUHAN UNIV OF SCI & TECH
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