The how-to site Instructables has a tutorial on how to build a real-time home power usage monitoring system. The end result is a live chart in a web page that updates every 10 seconds with the instantaneous power usage from their entire house. The electrical current is measured on the main lines entering their home with AC clamps. The signal is then conditioned with a simple circuit and monitored by an ioBridge module and then charted in Google Charts as a kilowatt-hour calculation.
CAYIN Technology to Present Enhanced Digital Signage Solutions and Sponsor the DOOH Conference at Integrated Systems Europe 2009
RTcom USA produces fiber optic transmitters and receivers that transmit high-definition, noise-free audio and video up to 1,000 meters away. The extension system consists of one transmitter, which sends DVI and audio signals through four-stand multimode fiber optic cables, and a receiver, which splits this fiber data into two DVI and audio signals. RTcom USA also produces USB Fiber Optic Extension Systems so you could extend your whole home theatre to an outdoor location like your patio. Original press release.
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