UNIVERSITY OF WASHINGTON RESEARCHERS DEVELOP ‘POWER OVER WI-FI’ SYSTEM

[daring dude]

A research team at the University of Washington in Seattle has developed a new wireless charging system called 'power over Wi-Fi' (PoWi-Fi) system which has the capability to recharge batteries through the air, from a distance of up to 28 feet.

The PoWi-Fi system demonstrated by the researchers showed how Wi-Fi signals can be used for broadcasting power to remote devices. With Wi-Fi radio broadcasts comprising a type of energy which can be picked up by an antenna, the Wi-Fi receivers designed by researchers harvest the information carried over by these broadcasts.

One of the researchers, Vamsi Talla said that the PoWi-Fi system has only two components --- custom-built sensors, and an access point (a router).

Explaining the purpose of the custom-built sensors of the PoWi-Fi system, Talla said that the sensors chiefly "harvest RF (radio frequency) power and convert it into DC power." About the access point, Talla said: "The second piece, the access point, there we actually developed a custom solution on it, just a software modification that would enable the access point to act both as a good power delivery source and, simultaneously, also as a good Wi-Fi router."

According to the researchers, the access point (a router) is capable of achieving 'power over Wi-Fi' in such a way that it can work with pre-existing hardware, and does not cause any interference to the users' Internet connection.

University of Washington researchers develop ‘power over Wi-Fi’ system | NYC Today

 

[Peaceful Civilian]

U.S.A is way ahead in R & D sector. .. This technology will benefit everyone.