- A group of Engineers from University of Washington have developed wi-fi backscatter, a system that uses radio signals to run low-power devices and existing Wi-Fi infrastructure to provide internet connectivity to these devices.
- Previous research showed how power could be harnesses from energy from radio, TV and wireless signals to run low-power devices such as temperature sensors or wearable technology.
- This latest technology allows connecting each individual device to the Internet. They encode data by slightly modifying wireless signals that can be detected by smartphones and laptops.
- For Internet of Things to take off, connectivity must be provided to potentially billions of battery-free devices that are to be embedded in everyday objects.
- Read at: http://www.thehindu.com/todays-paper/tp-national/power-and-wifi-from-thin-air/article6285420.ece