They Can Power a Surveillance Camera With WiFi Signals
A researchers team at the University of Washington have developed a first surveillance camera that is empowered by a WiFi router only. According to the reports, a rather wide use of the method is possible with little modification in the existing technology.
The chief modification in the current WiFi signal system is required because of its inconsistent pattern of energy generation. This happens because of the variations in frequencies that are transmitted over the same channel. The researchers made use of noise in the silence. That is they produced a uninterrupted hum, that served as an alternative source of energy when the channel went passive.
Having filled the energy gap, the next task for PhD student Vamsi Talla and his team was to test the effectiveness of their purposed concept. So they empowered a temperature sensor wholly by WiFi signals. The most enchanting trick was performed with a camera. A snapper was given power with WiFi signals for 35 minutes, which in turn took one image. This pattern was consistent enough: 35 minutes of charging and one image capturing.
The researchers found that their devised technology was advantageous without affecting regular data speeds. Still, the successful researcher will have to take permission from the FCC for implementing their method of power transmission.
“If the system can be improved, it could form the basis for a future of connected devices, sometimes called the Internet of Things,” notes the news source.
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