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Researchers develop modular robots that can autonomously adapt to changing environment.

Researchers develop modular robots that can autonomously adapt to changing environment.


-Music- New breed of drones. Drones give us a unique perspective of the
world around us. But just imagine what these small, agile,
unmanned aircraft could do if they weren’t completely dependent on GPS to navigate. They could assist in underground search efforts
or even deliver your next package without worrying about their proximity to buildings
and other obstacles that can block GPS signals. NSF-funded researchers at Brigham Young University
are producing a new breed of fixed-wing UAV’s that can navigate effectively when GPS signals
are interrupted, weak or nonexistent. The team’s system uses onboard devices like
cameras, depth sensors and other types of sensors with sophisticated algorithms to overcome
the dependence on GPS. The aircraft uses relative navigation, which
estimates the UAV’s position, velocity and attitude-so it can navigate relative to local
surroundings. To test the method, the team’s UAV traveled
1 mile successfully for two and a half minutes with an error of less than 3 percent of the
distance traveled. The relative navigation approach allows the
onboard algorithm to readily incorporate information from other aircraft or known landmarks to
further improve its estimate of its location. While additional development is needed, advances
such as these will lead to safer, more reliable UAVs when GPS is degraded or unavailable. Autonomous bots. Don’t adjust your screen! You’re not watching Olympic synchronized
robotics. These robotic modules combine to make this
robot. An NSF-funded Cornell-led research team has
designed modular robots that can for the first time perceive and react to their surroundings. These critters can assess the environment
and autonomously transform themselves into a different shape and successfully navigate
the changing and unfamiliar landscape. University of Pennsylvania researchers developed
these robots with flexible, interchangeable parts. They are also outfitted with multiple cameras
and small computers for collecting and processing data about their surroundings. The robots’ software includes perception
algorithms that can map, navigate and classify the environment. While still in research stages, these bots
might one day navigate complex terrain for exploration, or rubble for search and rescue. 3D bioprinting. Hardened blood vessels are associated with
cardiovascular disease, but engineering a solution for viable artery and tissue replacement
has been challenging. NSF-funded researchers at the University of
Colorado Boulder recently developed a 3D printing technique that could one day lead to the creation
of blood vessels, artificial arteries, and even organ tissues. The team’s technique allows for localized
control of an object’s firmness by controlling the amount of oxygen and light exposure present. This gives the researchers the freedom to
control which areas of an object are solidified to be harder or softer-while keeping the overall
geometry the same. The table-sized printer is capable of working
with biomaterials at about the size of one-tenth of the width of a human hair. The team demonstrated the technique by printing
a small Chinese warrior figurine with outer layers remaining hard and interior layers
remaining soft. The researchers are optimistic about the future
of their technique in fabrication of living artificial organ tissues. For more information about these stories, visit us at nsf.gov. This is NSF Science Now, I”m Dena Headlee. Music and NSF Logo. Credits

Comments (3)

  1. Do you mean altitude?

  2. 1:04 , Attitude 🤦‍♂️

  3. Attitude or altitude?

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