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Photography From the Future: Cameras That power off Wifi

Jun 7, 2015 by Udi Tirosh 7 Comments

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power-over-wifi

We always talk about powering cameras (and gear in general) as a big thing. I got to fly an Inspire 1 for an upcoming tutorial and was shocked at how much of our production hustle had to do with managing batteries. I am quite confident that battery and power management will be the next step in camera evolution.

Some companies are making bigger batteries (or adapters for bigger batteries), some companies solve the issue by making almost instantly-charging batteries, but this solution tops them all as it creates real of-the-air charging just by transiting a specific WiFi signal.

The system is called power over wifi and it literally creates a battery-free camera. At least in the sense that we perceive battery.

The system was developed by PhD student Vamsi Talla and colleagues at the Sensor Systems Lab at the University of Washington in Seattle.

The team realized that the power a wifi signal is enough to power a small device. The caveat is that wifi signals are done in bursts, so the small amount of time where a specific frequency is active is not enough. To solve this, the team modified wifi routers to emit “noise” on non-active channels.

The power gathered by this noise was enough to trigger a camera every 35 minutes. Kinda like a really slow time lapse.

While this sounds beneficial for some applications, I would hate to think that more radio signals and more powerful ones are overloading the air, and I am pretty confident that many will not want that system in their homes.

The full details can be found in a paper called Powering the Next Billion Devices with Wi-Fi [pdf] by Mr Talla and colleagues.

[Powering the Next Billion Devices with Wi-Fi via bbc]

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Filed Under: news Tagged With: Photography From The Future, power, wifi

Udi Tirosh: from diyphotography.net

About Udi Tirosh

Udi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

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Udi Tirosh: from diyphotography.netUdi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

Alex Baker: from diyphotography.netAlex Baker is a portrait and lifestyle driven photographer based in Valencia, Spain. She works on a range of projects from commercial to fine art and has had work featured in publications such as The Daily Mail, Conde Nast Traveller and El Mundo, and has exhibited work across Europe

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