WirelessSensor
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Wireless Sensor Tags alert you to movement and temperature changes, fit on your keyring
There's plenty of sensor gear around for hobbyists to play with, but not so many polished products for the monitoring-obsessed. Cao Gadgets is attempting to fill that niche with its functionally named Wireless Sensor Tags -- small devices which monitor movement and temperature, notifying you if anything's amiss. A magnetometer registers movement by changes in its orientation, and can inform you of door openings or similar disturbances, while the temperature triggers are based on upper or lower thresholds. The $15 sensors (or $12 if you want three or more) have a battery life that should last several years depending on their setup, but there is one catch -- you also need the Tag Manager hub ($50), which plugs into your router via Ethernet. It keeps in frequent contact with any subordinates in its 200-foot range, and if after several attempts it finds one MIA, a warning can be sent in case any of your home guards have walked or fallen asleep. The tags also have inbuilt beepers which can be pinged to track down any rogue possessions they're partnered with, like your keys. A lot of thought has been put into micromanaging the tags, which are customizable through web-based, Android or iOS apps, and will send out alerts via email, Twitter, or push notifications on slates and phones (text-to-speech is available if you're too lazy to read). If you're into your data, you can also access trigger statistics from the software, complete with graphs. The home monitoring kit is available now, and instead of crashing your browser with too many embeds, we've decided to point you to the source below for the half-dozen demo vids.
Researchers use inkjet acumen to create wireless explosive sensor from paper
Meet Krishna Naishadham and Xiaojuan (Judy) Song. They're researchers at the Georgia Institute of Technology, and those little devices they're holding may one day save you from an explosive device. This petite prototype is actually a paper-like wireless sensor that was printed using basic inkjet technology, developed by professor Manos Tentzeris. Its integrated lightweight antenna allows the sensor to link up with communication devices, while its functionalized carbon nanotubes enable it to pick up on even the slightest traces of ammonia -- an ingredient common to most IEDs. According to Tentzeris, the trick to such inkjet printing lies in the development of "inks" that can be deposited at relatively low temperatures. These inks, laced with silver nanoparticles, can then be uniformly distributed across paper-based components using a process called sonication. The result is a low-cost component that can adhere to just about any surface. The wireless sensor, meanwhile, requires comparatively low amounts of power, and could allow users to detect bombs from a safe distance. Naishadham says his team's device is geared toward military officials, humanitarian workers or any other bomb sniffers in hazardous situations, though there's no word yet on when it could enter the market. To find out more, careen past the break for the full PR.
