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Modular extensible indoor-outdoor seamless positioning method

A positioning method and seamless positioning technology, applied in wireless communication, wireless communication services, location-based services, etc., can solve problems such as poor scalability, limited available scenarios, and difficulty in adapting to the development and expansion of new technologies, achieving good scalability. Expansion effect

Inactive Publication Date: 2017-01-25
NAT UNIV OF DEFENSE TECH
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AI Technical Summary

Problems solved by technology

This positioning device achieves seamless positioning to a certain extent, but its implementability and scalability are poor, and the available scenarios are limited.
The patent document with publication number 103533649A proposes an indoor and outdoor seamless positioning system, which includes five modular levels, but the positioning process is actually solidified and the scalability is poor
The patent document with the publication number 105445776A also proposes an indoor and outdoor seamless positioning system, which switches between GPS and inertial navigation positioning. The entire algorithm is tightly coupled, and it is difficult to adapt to the development of new technologies for expansion.

Method used

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  • Modular extensible indoor-outdoor seamless positioning method
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  • Modular extensible indoor-outdoor seamless positioning method

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Embodiment Construction

[0040] The environment mainly affects the localization algorithm through the available signals. For example, it is difficult to receive GNSS signals indoors; in wild canyons, tunnels and other areas, there is no Wi-Fi signal. Depending on the available signal, the positioning algorithm is also different. Therefore, in order to realize seamless positioning in different environments, it is first necessary to judge the environment to determine the type of environment the user is in. The data used for environmental judgment comes from the input of various sensors, including light sensors, magnetometers, barometers, GSM chips, microphones, etc.

[0041] After determining the environment type, select different positioning algorithms according to the available signals in the environment. For example, GNSS positioning can be used for open outdoor environments, and Wi-Fi-based positioning can be used indoors. However, even for a single environment, it is difficult to use a single po...

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Abstract

The invention provides a modular extensible indoor-outdoor seamless positioning method. The modular extensible indoor-outdoor seamless positioning method is characterized in that the type of an environment where a user is located is determined by collecting the environment feature data of different environments and sensing the environment according to the collected environment feature data, and a corresponding positioning method is selected according to the type of the environment so as to achieve positon estimation. The modular extensible indoor-outdoor seamless positioning method has the advantages that the method can integrate different basic positioning algorithms, the algorithms can be flexibly combined according to different environments, indoor-outdoor seamless positioning is achieved, and the method is good in extensibility.

Description

technical field [0001] The invention belongs to the technical field of indoor and outdoor seamless navigation and positioning, and in particular relates to a modular expandable indoor and outdoor seamless positioning method. Background technique [0002] There is some research on indoor and outdoor seamless positioning. For example, the patent document with the publication number of 102279404A proposes a seamless positioning method and device. When the user receives enough satellites, the satellite positioning technology is used for positioning, otherwise the inertial navigation positioning is used; when the user UWB (Ultra Wideband) equipment is available , use UWB positioning, otherwise use inertial navigation positioning. This positioning device realizes seamless positioning to a certain extent, but its implementability and scalability are poor, and its available scenarios are limited. The patent document with publication number 103533649A proposes an indoor and outdoor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/04H04W64/00
CPCH04W4/043H04W64/006
Inventor 王维平常强陈伟石泽森
Owner NAT UNIV OF DEFENSE TECH
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