首页 > 应用 > 机器人 > 正文

航模机器人 认识小型飞行机器人:四旋翼
2015-01-03 10:51:49   来源:   评论:0 点击:

认识小型飞行机器人:四旋翼(CNN) Tiny flying robots! Meet the quadrotor译文简介:2011年的日本地震后,宾夕法尼亚大学的一个团队和仙台东北大学合作吧四旋翼用于灾区,在前大学教授实验室主任伟杰库马的


(CNN) Tiny flying robots! Meet the quadrotor

(CNN) -- It's a mesmerizing, surreal scene. Eighttiny, unmanned aerial vehicles -- called quadrotors -- begin to rise from theground in unison.


Theyhover at eye level, filling the room with a heavy buzzing sound. Then they movethrough a makeshift window, one at a time, and reform as a group on the otherside.


Thisisn't happening on a Spielberg set, and it isn't science fiction. Thesereal-life flying robots are at the University of Pennsylvania's General Robotics, Automation, Sensing andPerception Lab.


"Thisis a robot that's completely autonomous," said doctoral student MatthewTurpin, "and by that I mean there's no remote control in thebackground."


The labis a mechanical engineer's dream. Quadrotors in all shapes, sizes and colors --and in various degrees of assembly -- cover nearly every surface. Shelves linethe walls, filled to the brim with tools and toys.


Mostnoticeable is the lab's state-of-the-art Vicon motion-capture system. Infraredcameras placed throughout a test-flying area communicate with tiny sensors onthe
quadrotors, feeding into a computer-based navigation system.


"Wehave the Vicon system, or the red lights, which allow us to figure out wherethe robot is," Turpin explained. "Then we're able to send it commandsabout what we'd like it to do and group behaviors that you'll see."


Turpingives the quadrotors simple instructions via computer, but the vehicles decidehow to get from Point A to Point B on their own. The results are a dazzlingdisplay of formations, from spinning in circles in midair to navigatingobstacles in sync with each other.


Otherquadrotors at the GRASP Lab have worked together to carry cargo and buildstructures.


"Theserobots are able to pick up these simple, almost LEGO-like bricks, and they'reable to carry them from one location to another," Turpin said.


Butperhaps the quadrotors' most memorable moment was when they played instrumentsto perform the James Bondtheme song. The video has more than 3 million views on YouTube.


As muchfun as Turpin and his colleagues seem to be having, he says their ultimate goalis to put quadrotors to good use outside the lab.


After the2011 earthquake in Japan, a team from the University of Pennsylvania and TohokuUniversity in Sendai took quadrotors into the disaster zone. Led by VijayKumar, a former GRASP Lab director and professor at Penn, they achieved someremarkable accomplishments.


Amongthem: sending quadrotors -- equipped with cameras and lasers -- into anunstable building to see what sort of information they could gather.


"Wewent into a collapsed building; we mapped three floors," Kumar said."We got three-dimensional maps, and we were able to show that this sort ofthing is feasible today."


Quadrotorscould also use sensors to detect radiation levels and other biological hazards,Kumar said. That could help keep first responders out of harm's way.


"Clearly,humans will always have a role to play in emergency response for lawenforcement," Kumar said. "But if there's an emergency, if there's a911 call, the question is, do you want a human dashing off to respond to itright away?"


Kumaralso saw an opportunity for quadrotors to be used when law enforcement wasclose to apprehending a suspect in the Boston bombings.


"Afterthe tragic incident in Boston, you saw that robot actually ripping away thecanvas on top of the boat to try to look behind the cover" for thesuspect, he said, "It's an excruciatingly, painfully slow operation. Whatwe'd like to do is accomplish these tasks really quickly."


There areplenty of positive uses for quadrotors. But the concept of stealthy,camera-toting robots does cause concern for some people.


Kumaroften fields questions about misuse of the technology and privacy concerns.
"Ithink we should engage in a public dialogue about when to use them, what thepotential benefits are, and recognize that we can protect ourselves againstabuse of these devices -- as opposed to saying 'we don't want to develop this,'" he said.
For now,most of the research on these robots is still done in the lab. But you couldsay their potential is sky high.


相关热词搜索:旋翼 机器人


分享到: 收藏