Indoor positioning method, server and system

Abstract

The invention discloses an indoor positioning method, a server and a system. When receiving a positioning request sent by a user terminal, the server extracts positioning information included in the positioning request, uses the positioning information to perform coarse positioning on the user terminal, and obtains a first target image associated with a roughly estimated position from a database, the distance between the coordinate position of the first target image and the roughly estimated position is smaller than a preset distance; when a positioning image sent by the user terminal is received, whether a matching image matched with the positioning image exists in the first target image is judged; if the matching image exists, coordinate information and direction information of the matching image are sent to the user terminal, so that the user terminal displays the coordinate information and the direction information of the matching image on an indoor map, thereby using the displayed coordinate information and direction information as current position coordinates and direction of a user. Thus, indoor accurate positioning can be effectively realized.

Description

Technical field [0001] The present invention relates to the field of communications, in particular to an indoor positioning method, server and system. Background technique [0002] At present, the application field based on location is developing rapidly, and people's demand for positioning and navigation is increasing. In particular, how to locate a user on which floor of a building is a very hot issue. Because in some complex indoor environments, such as airport halls, exhibition halls, warehouses, supermarkets, libraries, underground parking lots, etc., through such information, users can be provided with useful service information, such as advertisements, directions, and rescue searches. Wait. However, currently, due to the constraints of positioning time, positioning accuracy, and complex indoor conditions, there is no relatively complete indoor positioning technology. [0003] GPS (Global Positioning System) based on satellite communication is currently the most widely used...

AI Technical Summary

Problems solved by technology

However, such accuracy cannot fully meet the needs of indoor positioning.

[0007] WiFi routers can only cover areas within a radius of 90 meters, and there are problems of weak signal and coverage dead spots, so they cannot have the robustness of the positioning system at any time and under any circumstances

[0008] The method based on optics (vision) is to find an image from the database that matches the image captured by the user through image processing technology, so as to obtain the positioning result, which has high accuracy and meets the needs of indoor positioning, but it requires high computing power and large Storage space, difficult to meet real-time requirements

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