Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Mar 25;22(7):2511. doi: 10.3390/s22072511

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Human geolocation via Bluetooth. The translucent background colors indicate the ground truth values, and the corresponding room number has been labeled. (a) The received signal strength indicator (RSSI) values as captured by each of the nine Raspberry Pis during the experiment are shown. It is measured in decibels with reference to one milliwatt (dBm). (b) The corresponding probability values of the subject being in Rooms 1, 2, or 3 during the experiment. The blue color depicts Room 1, the green color depicts Room 2, and the red color depicts Room 3.