TRAQ quadricopter locates and hones in on radio signal sources (video)

DNP  Traq quadricopter traces radio signals video

Move over, Parrot AR.Drone; there’s a new (prototype) quadrocopter in town. For their senior project, electrical engineering students at Northeastern University developed TRAQ, an autonomous aircraft that tracks down the sources of radio transmissions. That functionality comes thanks to a four-element antenna array, and the team envisions such a device being used in disaster, rescue and surveillance situations, where drones could prove faster to respond than us earthbound humans. The next step would be getting multiple aircraft to work together to improve location accuracy. Who doesn’t love an imposing swarm of quadrocopters, after all?

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Source: Northeastern

vi-RABT improves ankle rehabilitation with virtual reality and robotics

viRABT

We obviously love our gadgets around here. But, as worked up as we get for things with octa-core processors and 4K displays, what really excites us about technology is its ability to improve people’s lives. And while having an endless repository of information at your fingertips 24/7 certainly qualifies, we’re more interested in the people working to solve real problems. In the basement of the Egan Research Center at Northeastern University, a group of students are toiling away under the watchful eye and guidance of professor Constantinos Mavroidis to build a rather unique device called the Virtually-Interfaced Robotic Ankle and Balance Trainer — or vi-RABT. For the better part of a year the team has been working on what started life as a Capstone project. The concept began when Dr. Maureen Holden, from the school’s physical therapy department, came to the laboratory with a problem: how can we improve the speed and quality of recovery for stroke patients who have lost strength in their ankles and struggle to stay balanced?

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Genius.box wants to put a different experiment on your doorstep every month

Geniusbox wants to put a different experiment on your doorstep every month

There are a lot of things you can have delivered to your home on a monthly basis: magazines, hot sauces, underwear and beer are just a few. The second place winner at the Husky Startup Challenge, genius.box, takes that basic concept but replaces the Fruit of the Looms with simple to perform science experiments. Aimed at children between the ages of eight and 12, the projects inside each package teach a basic lesson in science, technology, engineering or math through a hands-on experience. All of the materials needed for each experiment are included, along with a lesson plan, instructions and “factoid” cards with tidbits of interesting trivia, such as the number of elements on the periodic scale.

The two boxes trotted out for demo day by creators Kate Pipa and Shivangi Shah covered the science and technology portions of the STEM equation. One was a kitchen chemistry set for growing crystals and the other a simple electronics kit, based partially around parts of a Snap Circuits set, that has kids building an electromagnet and lighting up an LED. This isn’t exactly a return to hardcore chemistry sets of the past (you’ll find no radioactive materials or poisons in here), but it’s certainly a step in the right direction for an America whose love affair with science is on the rocks. Every four weeks a child would get a whole new educational playset for the target price of $20 a month. Which is quite a bit cheaper than your standard chemistry set or electronics kit. To be kept in the loop as genius.box works to get off the ground, sign up at the more coverage link.

Gallery: genius.box

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ThermoShield protects your phone in unbearable heat and bone-rattling cold

ThermoShield protects your phone in extreme heat and cold

Rugged phone cases are bountiful. But, while they may offer some additional thermal protection, they’re not built for true extremes. For that, you’d need either piles of insulation (too bulky) or some way to control the temperature inside the case. ThermoShield, one of over a dozen student-run companies vying for attention at Northeastern University’s Husky Startup Challenge, went the latter route by slipping a Peltier element inside a slim plastic shell. The current prototype was built on a 3D printer and clearly created for an iPhone, but plans for the initial model should be simple enough to port to any handset. A standard watch battery powers the small plate and by controlling the voltage across it you generate either small amounts of heat or produce a slight cooling effect. A simple switch or slider would be used to manually control the flow of electrons. Trekking through the arctic tundra? Simply crank up the heat to keep your phone from freezing to death. Meandering through the Sahara? Take advantage of the Peltier’s thermoelectric cooling properties to keep the Gorilla Glass from melting.

According to one of the creators, Hannah Bialic, it wouldn’t be terribly difficult to add automatic temperature control. Though, development costs could significantly drive up the price of the ThermoShield. The hardware could all be baked directly into the case itself or an app could be created that would automate everything. Obviously, though, relying on software would limit the case to working with a single device (and let’s be realistic, it won’t be your beloved Nexus 4). There’s no telling when or if you’ll actually be able to pick up one of these variable temperature shells, but you can add your name to the mailing list at the more coverage link.

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KrystalBoard wants to replace blackboards and whiteboards with liquid crystals

KrystalBoard wants to replace blackboards and whiteboards

If you ask most people, they’d tell you there’s nothing wrong with the standard classroom set-up of a blackboard and chalk, or a whiteboard and dry-erase markers. Nicholas DePorzio isn’t most people, though. At Northeastern University’s Husky Startup Challenge Demo Day, he took home first prize for KrystalBoard, a liquid crystal-based writing board. His early prototype takes a few cues from Boogie Board’s line of scratch pads. Functionally, they’re almost identical: use a stylus to scratch your message into the panel then, when you’re done, simply press a button to erase it. What DePorzio believes sets his creation apart is the ability to scale to much larger sizes. His first prototype, tossed together in just six weeks, certainly has some rough edges (literally, the stand is made from roughly cut cardboard boxes). But, with a different selection of liquid crystal panels, the hope is that high-contrast classroom-sized KrystalBoards are well within his reach.

The first iteration uses a nine-volt battery to force the crystals to reorient themselves and wipe out any missives, but DePorzio is confident that a small solar panel (like the one on your 99-cent calculator) will have more than enough juice to “power” a much larger model. And “power” is a relative term, since technically there’s no electricity coursing through the single-crystal panels. The goal is to save time and money by doing away with erasers, chalk, markers and other disposable supplies. The Northeastern student even believes he can get the cost of materials below that of a standard whiteboard or blackboard, but only time will tell on that one. Though, taking home a large novelty check should give the fledgling company a good head start.

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Northeastern University’s haptic ball-racket system is one pricey game of paddle ball

Northeastern University's haptic ballracket system is one pricey game of paddle ball

We had the chance to check out a couple of student projects at Northeastern University’s fantastically-named Action Lab during a trip to Boston this week. On our quick tour through the facilities, we were shown a haptic controller being used to simulate the act of carrying a cup full of coffee, in order to monitor how people adapt movements to deal with the fluid dynamics of a hypothetical hot beverage inside the equally theoretical cup. The team had all sorts of strange and fascinating controls bandied about the facilities for the purpose of monitoring reactions to movement, but the one that really caught our eye was the ball-racket system. The controller uses a hacked up ping pong paddle connected to an encoder that feeds its real world vertical position into a computer, so test subjects can participate in what looks like rudimentary Atari game of paddle ball. Also on the bottom is a breaking mechanism that applies force to the paddle when the “ball” makes contact, so it feels like the real thing. There’s a video of the system in action after the break, and more information about the studies can be found in the source link below.

Continue reading Northeastern University’s haptic ball-racket system is one pricey game of paddle ball

Northeastern University’s haptic ball-racket system is one pricey game of paddle ball originally appeared on Engadget on Thu, 15 Nov 2012 13:36:00 EDT. Please see our terms for use of feeds.

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Nexi robot helps Northeastern University track effects of shifty body language (video)

Nexi robot helps Northeastern University reveal shifty body language video

MIT’s Nexi robot has been teaching us about social interaction for years, and has even done a stint with the US Navy. Its latest role, however, involved studying those moments when society falls apart. Northeastern University researchers made Nexi the key ingredient of an experiment where subjects were asked to play a Prisoner’s Dilemma-style game immediately after a conversation, whether it was with a human or a machine. Nexi showed that humans are better judges of trustworthiness after they see the telltale body language of dishonesty — crossed arms, leaning back and other cues — even when those expressions come from a collection of metal and plastic. The study suggests not just that humans are tuned to watch for subtle hints of sketchy behavior, but that future humanoid robots could foster trust by using the right gestures. We’ll look forward to the friendlier machine assistants that result… and keep in mind the room for deception when the robots invariably plot to take over the world.

Continue reading Nexi robot helps Northeastern University track effects of shifty body language (video)

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Nexi robot helps Northeastern University track effects of shifty body language (video) originally appeared on Engadget on Wed, 12 Sep 2012 08:32:00 EDT. Please see our terms for use of feeds.

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WiFi-Extending Robot is built like a tank — we talk to the people behind the project (video)

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It’s a fairly menacing sight, an aluminum robot sporting big tank treads — that is, until you watch one of its creators do a handstand on top of the thing in a pair of cargo shorts. And really, while the ‘bot wouldn’t look too out of place with a small machine gun strapped to its front, its intentions are peaceful, seeking to extend the WiFi connections to hazardous places lacking in network infrastructure. We first heard about the project last week, when the team of computer and electrical engineers at Northeastern University that created it first revealed their work to the media. A visit this weekend to our favorite Somerville, Massachusetts-based hackerspace provided the opportunity to check out the beast in-person and discuss the project with a couple of its creators.

After the limited machining resources at Northeastern failed to meet their needs, the students found a home at Artisan’s Asylum, where they learned the skills necessary to put together this ambitious project, utilizing classes and the metal shop provided by the space. The result is an impressive sight, a robot capable of climbing stairs and supporting the weight of two adult humans — the latter of which they happily demonstrated for us in a yet-to-be-occupied new wing at Artisan’s. The former, on the other hand, we were unable to see, sadly, as the internals were mostly gutted at the moment on the ever-evolving project. Team member Dan Landers, was more than happy to discuss the project, standing next to a pile of water jet-cut steel pieces that will form the first leg of giant hexapod Stompy, a project on which Landers is also a participant.

Continue reading WiFi-Extending Robot is built like a tank — we talk to the people behind the project (video)

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WiFi-Extending Robot is built like a tank — we talk to the people behind the project (video) originally appeared on Engadget on Mon, 06 Aug 2012 15:00:00 EDT. Please see our terms for use of feeds.

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