Three dimensions indoor positioning method based on visible light signal intensity

Abstract

The invention relates to a three dimensions indoor positioning method based on visible light signal intensity, belonging to the visible light communication technical field. The method comprises: first, according to frame header intensity information, utilizing the frame header intensities of LED signals received by a receiver to determine the height information Z of a light detector by establishing a fingerprint database; and second, utilizing the RSS measurement method to determine horizontal information X and Y. The method has a simple structure, is easy to operate and realize, does not need additional sensors, realizes height coordinate positioning under the condition of maintaining the hardware of an original two dimensional visible light positioning system, and thereby realizes indoor space positioning. Compared with a pure fingerprint database indoor space positioning method, the method substantially reduces the calculated amount in a whole process, and increases a positioning speed.

Description

technical field [0001] The invention relates to a three-dimensional space indoor positioning method based on visible light signal intensity, and belongs to the technical field of visible light communication. Background technique [0002] The indoor positioning solution based on visible light communication (Visible Light Communication, VLC) technology uses white light emitted by white semiconductor light-emitting diodes (Light Emitting Diode, LED) as the carrier of positioning signals, and has strong resistance to electromagnetic radiation, and the transmission channel of VLC generally adopts Direct channel, multipath interference is relatively small, so this positioning scheme can achieve relatively high accuracy; in addition, the indoor positioning system based on VLC technology is compatible with future VLC communication technology, so it does not require expensive hardware equipment investment, and the cost is relatively low . At present, there are many two-dimensional i...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that other sensors need to be added to the existing indoor 3D positioning, and propose a three-dimensional space indoor positioning method based on the intensity of the visible light signal, and determine the height information of the object by using the frame head intensity of the LED signal received by the receiver , determine the plane position information through the intensity information of different LEDs

Images