News / Science & Technology

Autonomous Aerial Robot Maneuvers Like a Bird

An autonomous flying robot avoids a tree on the Cornell Arts Quad (credit: Saxena lab)
An autonomous flying robot avoids a tree on the Cornell Arts Quad (credit: Saxena lab)
Researchers at Cornell University have developed a flying robot they say is “as smart as a bird” because it can maneuver to avoid obstacles. They say it eventually could be used in search-and-rescue operations because of its ability to maneuver through forests, tunnels or inside damaged buildings.

“Most previous robots assumed perfectly known location of obstacles,” said Ashutosh Saxena, assistant professor of computer science who led the team developing the robot. “Some of the recent ones used 3-D cameras to navigate indoors. However, these techniques did not apply to outdoor environments with unstructured obstacles like trees, branches and poles. In that sense, this is a first one that can learn to avoid such obstacles.”

Miniature Aerial Vehicles are commonly used today for a variety of tasks, but they are mostly guided by humans using Global Positioning System (GPS) technology. Saxena’s team wanted to program the robot to recognize obstacles and avoid them on its own with limited human assistance.

Saxena explained that requirement by noting that there is no guarantee there would be GPS coverage in a fallen building, and that human controllers can’t always react quickly enough in tight areas.

“The operator is looking at a tiny screen and trying to control the machine,” he said. “They don’t have the physical sense of where things are.”

Saxena, along with his team of Ian Lenz and Mevlana Gemici, tested the programming using a commercially available quadrotor flying machine, which is about the size of a small table and has four helicopter rotors. The first step, Saxena said, was to program the quadrotor to navigate through hallways and stairwells.

The trick was to teach the robot to avoid obstacles in less predictable environments such as outdoors. Saxena and his team were able to program the robot to turn a flat image into an approximate 3-D model of the environment to estimate the size and distance of an object and then take evasive action at the appropriate time.

Still, hurdles remain before the robot could be used in a real-world scenario. It still needs to be able to adapt to environmental variations like wind as well as be able to detect moving objects like birds.

“It would not be zipping through like in Star Wars,” he cautioned.

The project is supported by a grant from the Defense Advanced Research Projects Agency (DARPA).

Here's a video of the aerial vehicle in action:

You May Like

Is Air Travel Safe?

Aviation expert says despite tragic losses of Malaysian Airlines flights 370 and 17, industry experienced lowest fatality rate in recorded history last year More

Multimedia 100 Days Later, Nigerian Girls Still Held

Activists holding rallies in Nigeria and several other countries to mark 100th day of captivity for more than 200 schoolgirls being held by Boko Haram More

Chocolate Too Bitter? Swap Sugar for Mushrooms

US food technology company develops fermentation process using mushrooms to reduce bitterness in cocoa beans, believes it will cut sugar content in candy More

This forum has been closed.
Comments
     
There are no comments in this forum. Be first and add one

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
IAEA: Iran Turns its Enriched Uranium Into Less Harmful Formi
X
July 22, 2014 10:26 AM
Iran has converted its stockpiles of enriched uranium into a less dangerous form that is more difficult to use for nuclear weapons, according to the United Nations’ Atomic Energy Agency. The move complies with an interim deal reached with Western powers on Iran's nuclear program last year, in exchange for easing of sanctions. Henry Ridgwell reports for VOA from London.
Video

Video IAEA: Iran Turns its Enriched Uranium Into Less Harmful Form

Iran has converted its stockpiles of enriched uranium into a less dangerous form that is more difficult to use for nuclear weapons, according to the United Nations’ Atomic Energy Agency. The move complies with an interim deal reached with Western powers on Iran's nuclear program last year, in exchange for easing of sanctions. Henry Ridgwell reports for VOA from London.
Video

Video Relic of Saint Draws Catholics Worried About Immigration Issue

A Roman Catholic saint who is a figure of devotion for those crossing the border into the United States is attracting believers concerned about the plight of undocumented immigrants. Mike O'Sullivan reports from Los Angeles, where a relic of Saint Toribio has drawn thousands to local churches.
Video

Video Ukraine Rebels Surrender MH17 Black Boxes

After days of negotiations, a senior separatist leader handed over two black boxes from an airliner downed over eastern Ukraine to Malaysian experts early Tuesday. While on Monday, the U.N. Security Council unanimously demanded that armed groups controlling the crash site allow safe and unrestricted access to the wreckage.
Video

Video In Cambodia, HIV Diagnosis Brings Deadly Shame

Although HIV/AIDS is now a treatable condition, a positive diagnosis is still a life altering experience. In Cambodia, people living with HIV are often disowned by friends, family and the community. This humiliation can be unbearable. We bring you one Cambodian woman’s struggle to overcome a life tragedy and her own HIV positive diagnosis.
Video

Video Nature of Space Exploration Enters New Age

Forty-five years ago this month, the first humans walked on the moon. It was during an era of the space race between the United States and the Soviet Union. World politics have changed since then and -- as Elizabeth Lee reports -- so has the nature of space exploration.
Video

Video Chicago’s Argonne Lab Developing Battery of the Future

In 2012, the U.S. Department of Energy’s Office of Science awarded a $120 million grant to a new technology center focused on battery development - headquartered at Argonne National Laboratory in suburban Chicago, Illinois. As VOA’s Kane Farabaugh reports, there scientists are making the next technological breakthroughs in energy storage.
Video

Video In NW Pakistan, Army Offensive Causes Massive Number of Displaced

Pakistan’s army offensive in North Waziristan has resulted in the large-scale displacement of the local population. VOA's Ayaz Gul reports from northwest Pakistan where authorities say around 80 percent of the estimated 1 million internally displaced persons [IDPs] have settled in Bannu district, while much of the remaining 20 percent are scattered in nearby cities.
Video

Video Kurdish Peshmerga Force Secures Kirkuk, Its Oil

The Kurdistan regional government has sent its Peshmerga troops into the adjacent province of Kirkuk to drive out insurgents, and to secure the area's rich oil fields. By doing this, the regional government has added a fourth province to the three it officially controls. The oil also provides revenue that could make an independent Kurdistan economically strong. VOA’s Jeffrey Young went out with the Peshmerga and filed this report.
Video

Video Malaysia Reeling: Second Air Disaster in Four Months

Malaysia is reeling from the second air disaster in four months involving the country’s flag carrier. Flight 340 vanished in March and despite an extensive search, no debris has been found. And on Thursday, Flight 17, likely hit by a surface-to-air missile, came apart over eastern Ukraine. The two incidents together have left more than 500 people dead. VOA Correspondent Steve Herman reports from Kuala Lumpur.

AppleAndroid