Soon, your stuff is driven by the power of WiFi signal alone – Tønsberg Blad

  [Amobil.no] When we think of electronic gadgets such as smart watches, it is difficult to imagine them without the vital battery. This ensures that the device has energy to supply including screen and bluetooth antenna power.

 

 We are now facing what is expected to be the next big thing in technology, namely gadgets you can have on you, or so-called “wearable devices.” However, it would be a giant advantage for technology dissemination we managed to get rid of the battery, which often takes up the percentage of space in the often small devices and weigh them down.

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 Is powered via the WiFi signal

 Now they have, even before the technology has taken off, maybe come up with a breakthrough. At the University of Washington has in fact a research group managed to drive small “be-on-gizmos» just using WiFi wireless signals and a technology they call WiFi Backscatter.

  Conventional wireless signals require much power. WiFi Backscatter, as scientists have assembled using a new circuit and antenna that requires four times less energy than this, reaping what it needs energy right from the wireless signals that juts criss-cross in the air. At the same time it has enough surplus energy to communicate with other Internet devices.

 WiFi Backscatter looking for signals passing between the devices and the network router, and can add information on the signals that are already on the way out to the Internet. Laptops and other WiFi devices with more processing power and energy can detect the signals changed, snatch up these again and separate out information that WiFi Backscatter device sent so that it can be passed on to your destination, whether it is a place in the house or on the other side of the earth.

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 The applications are queued

 The technology means that within a few years may see very small sensors and devices placed in your home, or you, who without any other energy input than a WiFi signal, monitor and communicate with you directly over the Internet.

 About the tiny sensor, perhaps integrated into the candlestick on the coffee table, determines that it is too hot in the house in terms of weather, this is automatically lowered. Have you had a sltisom workout and sensor in jogging suit your reader that you are hot and sweaty, it can send a signal to the tap in the bathroom that automatically fills the bath when you approach the home.

  Researchers have already proven that the technology works. Especially useful in the real world, it is still not even with a transmission of data on poor one Kb / s on two meters. Within a short time rekevidden planned to be extended to 20 meters.

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  Here is a video explaining how WiFi Backscatter works.