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

. 2020 Aug 20;8:153479–153507. doi: 10.1109/ACCESS.2020.3018140

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

This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/

This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

FIGURE 10. — Keeping distance between any two persons using Bluetooth technology. A Bluetooth-enabled device such as a smartphone can calculate the distances between itself and other nearby Bluetooth-enabled devices. When another device comes into close proximity, a warning notification can be sent to the user.