Indoor Positioning Method Based on Spatial Clutter Signal

Abstract

The invention provides an indoor positioning method based on a space clutter signal. A positioning point space clutter signal, a space clutter signal and position information correlation database, an indoor positioning calculation module and a mobile terminal are included; the indoor positioning method is characterized in that when the space clutter signal shows that a user is at a current position, an intelligent cell phone and other mobile terminals can receive existing quantifiable signals; the space clutter signal and position information correlation database is composed of an indoor space position coordinate, indoor space layout and path information, indoor space clutter signal distribution information or a space clutter signal source position and radiation intensity information; the indoor positioning calculation module is mounted on the mobile terminal and is used for receiving a current space clutter signal, filtering the positioning point space clutter signal from the current space clutter signal, and analyzing and calculating a current user indoor position coordinate; the mobile terminal is provided with the indoor positioning calculation module and has a function of receiving the current space clutter signal; and beacon equipment does not need to be arranged so that the indoor positioning covering cost is reduced.

Description

technical field [0001] The invention relates to the field of indoor positioning, in particular to an indoor positioning method based on spatial clutter signals. Background technique [0002] With the development of society and the advancement of urbanization, large-scale single buildings in cities have increased rapidly. Large-scale buildings have large indoor spaces and complex layouts, and the demand for indoor positioning and navigation has increased rapidly. In recent years, indoor positioning technology has made some progress. Indoor positioning technology mainly uses the spatial distribution of signals such as radio waves, ultrasonic waves, and light sources of specific wavelengths to associate spatial signals with geographic location information, and then determine the target location. At present, the commonly used indoor positioning technologies mainly include: indoor positioning technology based on wifi network, indoor positioning technology relying on Bluetooth be...

AI Technical Summary

Problems solved by technology

However, the layout of existing hardware equipment results in high cost, or poor accuracy due to only analysis of a certain signal

[0003] The indoor positioning method of deploying beacon devices on hardware devices: It is necessary to manually deploy wifi networks, Bluetooth base stations (or iBeacon), sound signal sources, light sources, etc. as beacons in the target area. In order to ensure positioning accuracy, it is necessary to deploy higher density The beacons and the precise planning of the beacon positions will consume a lot of signal source equipment costs, layout labor costs, and time costs, resulting in high promotion and coverage costs, and the promotion is extremely slow; analyze the indoor positioning method of a single signal: such as a single use Bluetooth signals or geomagnetic signals, etc., the signal differentiation characteristics that can be used for positioning are not obvious, and it is easy to cause low positioning accuracy and low positioning sensitivity. This is usually solved by adding beacons, but it also increases equipment costs.

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