Method and device for indoor positioning

Abstract

The present invention discloses a method and device for indoor positioning. The method includes: obtaining the current cell signal strength information of a terminal in the room; and determining the indoor grid corresponding to the current cell signal strength information according to the indoor three-dimensional 3D positioning matching information. horizontal position information and altitude information, wherein the indoor 3D positioning matching information includes the corresponding relationship between the cell signal strength information of the indoor grid and the horizontal position information and height information of the indoor grid; according to the corresponding relationship with the current cell signal strength information The horizontal position information and height information of the indoor grid determine the horizontal position of the terminal indoors and the height of the terminal. The indoor positioning method and device of the embodiments of the present invention determine the horizontal position and height of the terminal indoors by matching the current cell signal strength information of the terminal with the cell signal strength information in the indoor three-dimensional 3D positioning matching information. Realize high-precision indoor 3D positioning.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of communications, and more specifically, to an indoor positioning method and device. Background technique [0002] With the rapid development of communication technology and its applications, communication-based positioning technology has received more and more attention. User location information is the basis of many innovative value-added services and applications. For example, positioning technology can be applied to wireless network refinement optimization and problem analysis, or to security, targeted advertising push, navigation and other fields. The current positioning technology is generally 2D (Two Dimensions, two-dimensional) positioning in the horizontal dimension of the outdoor ground. Common methods include feature matching based on wireless signal characteristics, and hyperbolic method based on time delay. Traditional 2D positioning based on wireless communication signal...

AI Technical Summary

Problems solved by technology

The main disadvantage of Wi-Fi indoor positioning is poor scene adaptability. Only buildings and floors where Wi-Fi is deployed can be positioned accordingly. In practice, most buildings or some floors of buildings do not deploy Wi-Fi, resulting in These scenes cannot use Wi-Fi for indoor 3D positioning

[0004] Therefore, it is currently impossible to achieve indoor 3D positioning with high precision and strong scene adaptability to accurately determine the indoor horizontal position and height of the terminal to be positioned, which limits the development of innovative value-added services based on user location information. application

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