Indoor global positioning system

Abstract

In one aspect, information of multiple anchor points is received and stored. The information of each anchor point includes Global Positioning System (GPS) data of a particular location and radio frequency (RF) data that was obtained at a device at the particular location. A geo coordinate is determined for an indoor location based on the RF data obtained at the indoor location and the information of the anchor points. Various embodiments pertain to software, systems, devices and methods relating to anchor points and / or the obtaining of a geo coordinate for a location.

Description

technical field [0001] The present invention relates to techniques for determining location. More specifically, various embodiments of the invention relate to determining geographic coordinates of an indoor location. Background technique [0002] Many modern smartphones and mobile devices can determine their own location using the Global Positioning System (GPS). In a typical implementation, a smartphone receives signals from multiple GPS satellites. GPS signals help indicate the distance between the smartphone and the satellites. The smartphone then uses the GPS signal to determine its location, which is typically expressed as geographic coordinates or GPS coordinates (eg, a pair of longitude and latitude coordinates). An advantage of the GPS coordinate system is that it is widely adopted and compatible with a large number of location-aware applications. [0003] However, one disadvantage of the GPS system is that it is ineffective or substantially less effective in ind...

AI Technical Summary

Problems solved by technology

[0003] However, one disadvantage of the GPS system is that it is ineffective or substantially less effective in indoor environments because building walls and ceilings can block satellite signals

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