Indoor positioning and navigation method based on visible light communication technology

Abstract

The invention discloses an indoor positioning and navigation method. An optical signal source, a mobile terminal, a client and a database server are arranged at each indoor navigation target position. The optical signal information emitted by the optical signal sources is bound with the target position information and then is stored in the database server, the optical signal information of each optical signal source can uniquely identify the target position, the mobile terminal can operate the client, and the client can scan the optical signal sources of the target position, is in wireless communication with a database server, and can download and store an electronic map stored for offline positioning. According to the indoor positioning and navigation method based on the visible light communication technology as the identification code, the problem that positioning cannot be achieved indoors or positioning is inaccurate in the prior art is solved, dependence on mobile network communication is overcome, and off-line positioning and navigation can be achieved.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to an indoor positioning and navigation method based on visible light communication technology as an identification code. Background technique [0002] With the rapid development of urbanization, indoor spaces become more and more large and complex, and people's needs for indoor positioning and navigation are gradually emerging. In scenarios such as large shopping malls, parking lots, airports, museums, libraries, etc., people often spend a lot of time looking for the destination they want to reach. [0003] At present, indoor positioning systems and navigation services have not yet been popularized. Although GPS technology has been highly popularized, GPS satellite signals have low power and poor penetration ability, and cannot work in indoor environments due to the barriers of building walls. [0004] Currently, there are many indoor positioning methods on the market, mainly ...

AI Technical Summary

Problems solved by technology

In order to obtain a method with high precision and low cost, there is a Chinese patent with the patent number "CN103292805A", which discloses "an indoor navigation system and its indoor navigation method", which uses a two-dimensional code as the identification of each location, Obtain the current location information by scanning the QR code to achieve positioning, with high precision and low cost, but the positioning process still depends on the Internet connection, and there are certain limitations in indoor environments with poor signals, such as underground parking lots.

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