Device and method for making wi-fi radio map

A map construction and signal technology, applied to measuring devices, wireless communications, instruments, etc., to achieve the effect of improving economic efficiency

Active Publication Date: 2015-02-25
KOREA ADVANCED INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, there is a problem that it will take a long time for home appliances to be popularized in a state where a Wi-Fi f

Method used

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  • Device and method for making wi-fi radio map
  • Device and method for making wi-fi radio map
  • Device and method for making wi-fi radio map

Examples

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Embodiment Construction

[0024] For the Wi-Fi signal map construction device and method according to the present invention, the premise is to obtain the support of the following function: multiple portable terminals receive surrounding Wi-Fi signals in an unconscious or unobtrusive manner The Wi-Fi fingerprint is collected, and then sent to a pre-set remote server together with its own inherent information (PIN).

[0025] To this end, the following method can be applied: a Wi-Fi fingerprint collection module is built in the form of a background program (daemon) in the operating system (Android operating system, Apple operating system, etc.) of the portable terminal, or it is built into a utility program released by the communication operator , so as to perform Wi-Fi fingerprint collection and transmission functions. In addition, it is also possible to utilize the built-in Wi-Fi fingerprint collection module in widely released and used games, messaging apps, Wi-Fi fingerprint collection and transmissio...

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Abstract

The present invention is related to method and device for building Wi-Fi radio map. Especially, it is related to device and method for building Wi-Fi radio map that is used to position locating service that utilizes Wi-Fi fingerprints that many, unspecified mobile terminals collect and provide. Specifically, the present invention provides, as methods for estimating position data for AP (200) using Wi-Fi fingerprints collected by mobile terminals (100), 1) method for estimating position data for AP (200) by linking Wi-Fi fingerprints and time data for collecting Wi-Fi signal, or 2) method for estimating position data for AP (200) through user address data comparison between Wi-Fi fingerprints without linking signal collection time data to Wi-Fi fingerprints. Accordingly, it has effects of epoch-making economic feasibility compared to prior art that requires huge cost in collecting Wi-Fi fingerprint like war driving.

Description

technical field [0001] The present invention relates to a Wi-Fi signal map (Wi-Fi Radio MAP) construction device and method, and in particular to a Wi-Fi signal fingerprint (Wi-Fi fingerprint) collected and provided by a plurality of non-specific portable terminals. A device and method for constructing a Wi-Fi signal map used in a location-providing service. Among them, the Wi-Fi signal fingerprint refers to the received strength (RSSI) of the signal sent by the Wi-Fi repeater (AP) and the intrinsic information (BSSID) of the Wi-Fi repeater (AP) obtained when the portable terminal scans the Wi-Fi signal. The list (or set) of signal pairs is hereinafter referred to as "Wi-Fi fingerprint". Background technique [0002] A position estimation method using GPS (Global Positioning System) is used in various technical fields and application fields, but its application is limited because the accuracy of signals received from satellites decreases depending on the location. In parti...

Claims

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Application Information

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IPC IPC(8): G06F17/40H04W64/00
CPCG01S5/0242H04W8/005G01S5/0252H04W8/26H04W84/12H04W64/00H04W16/18H04W64/003G01S5/02526
Inventor 韩东洙
Owner KOREA ADVANCED INST OF SCI & TECH
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