The technology of energy transfer via WiFi
The spread of wireless data transmission made a small revolution in our lives. Now we connect to the network everywhere, and stay in touch almost always, and on the mass of clutter escaped. I stayed next bastion - a charge - and it looks like he is about to collapse. Engineers of the University of Washington reported the development of technology PoWiFi, which allows you to pass through the air, and even energy.
"We were able to show for the first time that you can use WiFi to power sensors and other devices, - says one of the authors of development WAYS Talley (Vamsi Talla). - A system that can work in parallel and as a WiFi-router and as a source of power; wireless signal quality during charging wirelessly not impaired. " Present technology is planned in December, 2015 at the conference CoNEXT in Germany.
Unfortunately, for charging smartphones or laptops question. PoWiFi intended for devices that consume very little power - a level comparable to the peak power capacity of radio waves WiFi-signal. However, this includes not only the abstract "sensors", but it is clear to all bracelets and fitness trackers webcam.
For this purpose an ordinary WiFi-router is upgraded so that from time to time he sends the data packets are not, and energy, using unoccupied information transmission channels. Made prototype proved effective enough to without problems (without wires) to feed a small video camera VGA to a distance of 5 m. A charging fitness tracker Jawbone Up24 41% it took about 2.5 hours. At the same time the quality of the network channel Communication is not affected.
It is hoped that the authors will find a way to improve the development and transfer of energy is more - so that was enough even for a smartphone.
The spread of wireless data transmission made a small revolution in our lives. Now we connect to the network everywhere, and stay in touch almost always, and on the mass of clutter escaped. I stayed next bastion - a charge - and it looks like he is about to collapse. Engineers of the University of Washington reported the development of technology PoWiFi, which allows you to pass through the air, and even energy.
"We were able to show for the first time that you can use WiFi to power sensors and other devices, - says one of the authors of development WAYS Talley (Vamsi Talla). - A system that can work in parallel and as a WiFi-router and as a source of power; wireless signal quality during charging wirelessly not impaired. " Present technology is planned in December, 2015 at the conference CoNEXT in Germany.
Unfortunately, for charging smartphones or laptops question. PoWiFi intended for devices that consume very little power - a level comparable to the peak power capacity of radio waves WiFi-signal. However, this includes not only the abstract "sensors", but it is clear to all bracelets and fitness trackers webcam.
For this purpose an ordinary WiFi-router is upgraded so that from time to time he sends the data packets are not, and energy, using unoccupied information transmission channels. Made prototype proved effective enough to without problems (without wires) to feed a small video camera VGA to a distance of 5 m. A charging fitness tracker Jawbone Up24 41% it took about 2.5 hours. At the same time the quality of the network channel Communication is not affected.
It is hoped that the authors will find a way to improve the development and transfer of energy is more - so that was enough even for a smartphone.
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