Feeds

Intel plucks power from TV signals

At last, a use for Paris Hilton's British Best Friend

New hybrid storage solutions

Researchers at Intel have demonstrated low-power electronics running on nothing more than power harvested from a normal TV aerial, or an RFID reader if there happens to be one nearby.

The project, presented in this paper at TechOnline (free registration required) describes two projects: the first to draw power from an RFID reader, the second to run an electronic thermometer/hygrometer from electricity harvested from a TV transmitter 4km away.

The shop-bought thermometer apparently consumes around 25uA at 1.5v, this is normally supplied by a single AA battery which was replaced with an energy-harvesting circuit attached to a set-top-style aerial balanced on a balcony and pointed at the KING-TV tower. The tower is 4.1km from the Intel Research Seattle Lab from whose balcony the test was conducted. The researchers report that the device worked perfectly, collecting data and displaying it on an LCD screen.

Even when it's free that's still not a lot of power, but the researchers suggest that an unattended data-logging device or similar might benefit from the technique, or just someone wanting to get some free electricity from the airwaves around us. ®

Providing a secure and efficient Helpdesk

More from The Register

next story
Boffins: Behold the SILICON CHEAPNESS of our tiny, radio-signal-munching IoT sensor
Single ant-sized Stanford chip combines radio, 'puter, antenna
Thought that last dinosaur was BIG? This one's bloody ENORMOUS
Weighed several adult elephants, contend boffins
Drones swarm over bearded Brit billionaire's island getaway
Just to take lovely pictures though, after Richard Branson invests in 3D Robotics
Chelyabinsk-sized SURPRISE asteroid to skim Earth, satnav birds
Space rock appears out of nowhere, buzzes planet on Sunday
California blue whale numbers soar to historical levels, say boffins
Still far too many of them being struck by US ships, mind
City hidden beneath England's Stonehenge had HUMAN ABATTOIR. And a pub
Boozed-up ancients drank beer before tearing corpses apart
'Duck face' selfie in SPAAAACE: Rosetta's snap with bird comet
Probe prepares to make first landing on fast-moving rock
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.