The new spy camera
The latest prototype product from NEC Japan has to be one of the most novel uses of alternative energy we’ve ever seen - it’s a wireless security camera that draws its power directly from fluorescent light tubes.
As odd as it may seem, the unnamed camera simply needs to be fixed to the ceiling beside a fluorescent light and connected to it by a wire with a ring-like adapter on one end. When the light is switched on, electricity is then generated by the Sharp-created technology in the ring through electromagnetic induction.
Key to the development is not the flicker of a fluorescent tube that we’re so familiar with, but the magnetic field created by the AC source in the light. A field frequency of 45-100kHz can be used by the ring to generate 120mW of electricity, which is enough to power the camera.
From that point on the otherwise-standard camera - VGA resolution with shots every 10 seconds - takes over, beaming its images to a PC using an ordinary Wi-Fi chip that also draws power from the light.
NEC suggests that its camera could be installed in office light fittings to help companies keep an eye on their staff at work or in supermarkets for analyzing shopper behavior. So, suspicious cheapskates and manipulative marketers are probably rubbing their hands in glee.
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This entry was posted on Monday, December 3rd, 2007 at 11:05 am and is filed under Surveillance, Civil Liberties & Human Rights News . You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
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