#Novel Use of WI-FI Signals to Power Remote Devices, named Powi-Fi The scientists from the University of Washington have devised a method to utilize Wi-fi signals to power a battery-free camera, demonstrating the possibility of using Wi-fi signals to broadcast power to remote devices. They have named the new approach as'Powi-Fi'signifying'power over Wi-fi'.'In a report published in the MIT Technology Review, Vamsi Talla, an Indian origin scientist along with colleagues at the University of Washington in Seattle have asserted that Wi-fi radio broadcasts are a form of energy and a simple antenna with the receivers can pick up this energy. Talla demonstrated his claim by connecting an antenna to a temperature sensor and placing it close to a Wi-fi router. The resulting voltage in the device was measured then and it was observed for how long the device can operate on the remote power source. When the team connected a camera to their antenna the results were remarkable. Talla informed,"The battery-free camera can operate up to about five meters from the router, with an image capture every 35 minutes"."Talla further said that by adding a rechargeable battery, the operating distance of the camera was increased to seven meters. Moreover, the researcher claimed that the router could even power the camera through a brick wall. The team also used Wi-fi signals to charge a Jawbone fitness device from a no-charge state to 41%charged state in 2. 5 hours. The MIT report stated that power-over-Wi-fi could be the enabling technology that finally brings the'Internet of things'to life e
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