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Cornell University may be the host of the Cornell Cup competition, but that doesn’t mean it can’t bring its own robots to join in on the fun. This year, students brought along a few bots, dubbed dunebots, outfitted with all-terrain wheels and equipped with laser tag turrets. The rugged rig features a pair of cameras, a dustproof and water resistant chassis, air intakes capped with filters, and other custom components for suspension and steering. Not only does the team plan on releasing code and documentation for the project, but the hardware was designed with modularity in mind, so others can build their own modified versions.

Taking the robot into battle requires two pilots armed with Xbox 360 controllers: one directing where it travels, and another aiming the turret and firing. Driving the buggy over the web is also possible, though it takes a few seconds for it to react. The group also baked in voice controls, to boot. If you’re not watching the car duke it out in person, you can even tune in over the web and watch a live video stream from one of its onboard cams. Its top speeds haven’t been firmly nailed down, but the team says the bot was running at approximately 35 percent of its full potential, since it was deemed too fast for conference attendees. Hit the jump to catch us talk with the effort’s Computer Science lead Mike Dezube, and to see a dunebot in action.

Filed under: Robots, Alt

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Researchers from Microsoft and Cornell University want to remove the tangles of cables from data centers. It’s no small feat. With thousands of machines that need every bit of bandwidth available WiFi certainly isn’t an option. To solve the issue, scientists are turning to two sources: the cutting edge of 60GHz networking and the 19th century mathematical theories of Arthur Cayley. Cayley’s 1889 paper, On the Theory of Groups, was used to guide their method for connecting servers in the most efficient and fault tolerant way possible. The findings will be presented in a paper later this month, but it won’t be clear how effectively this research can be applied to an actual data center until someone funds a prototype. The proposed Cayley data centers would rely on cylindrical server racks that have transceivers both inside and outside the tubes of machines, allowing them to pass data both among and between racks with (hopefully) minimal interference. Since the new design would do away with traditional network switches and cables, researchers believe they may eventually cost less than current designs and will draw less power. And will do so while still streaming data at 10 gigabits per second — far faster than WiGig, which also makes use of 60GHz spectrum. To read the paper in its entirety check out the source.

Filed under: Wireless, Networking, Science, Alt, Microsoft

Researchers turn to 19th century math for wireless data center breakthrough originally appeared on Engadget on Fri, 12 Oct 2012 11:39:00 EDT. Please see our terms for use of feeds.

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While you were trying to pass Poetry 101, Cornell seniors Le Zhang and Michael Lathrop were creating an apple-polishing Lego robot that automatically erases your prof’s chalkboard. A final class project, the toady mech uses an Atmel brain, accelerometers for direction control, microswitches to sense the edge of the board, magnets to stay attached and hot glue to keep the Lego from flying apart. As the video below the break shows, it first aligns itself vertically, then moves to the top of the board, commencing the chalk sweeping and turning 180 degrees each time its bumpers sense the edge. The duo are thinking of getting a patent, and a commercialized version would allow your teacher to drone on without the normal slate-clearing pause. So, if designing a clever bot and saving their prof from manual labor doesn’t get the students an ‘A’, we don’t know what will.

Continue reading Cornell students build spider-like robotic chalkboard eraser out of Lego, magnets, fun (video)

Filed under: Robots

Cornell students build spider-like robotic chalkboard eraser out of Lego, magnets, fun (video) originally appeared on Engadget on Tue, 14 Aug 2012 08:39:00 EDT. Please see our terms for use of feeds.

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