Video: Home Security System Uses Radio Signals To Detect Intruders

Jul 12, 2011 by Serkan Toto

Video and infra-red were yesterday: Japan’s National Institute of Information and Communications Technology, the NICT, is working on a home security and monitoring system that’s entirely based on radio signals. The main advantage of the so-called “RAdio-wave Mesh for Intruder Detection System” (RAMIDS) is that there are no blind spots in the areas screened anymore.

The system consists of a transmitter and antennas that detect changes from the signal’s amplitude and phase. Depending on a threshold value set beforehand, an alarm is triggered every time an event in the room is monitored and causes a change (for example, when ...

Read more at TechCrunch

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