The new technology makes drones much safer
Researchers
at the University of Zurich have unveiled new technology enabling
drones to recover stable flight from any position and land autonomously
in failure situations. It will even be possible to launch drones by
simply tossing them into the air like a baseball or recover stable
flight after a system failure. Drones will be safer and smarter, with
the ability to identify safe landing sites and land automatically when
necessary.
"Our new technology allows safe operation of drones beyond the operator's line of sight, which is crucial for commercial use of drones, such as parcel delivery," says Prof. Davide Scaramuzza, co-inventor and Director of the Robotics and Perception Group at the University of Zurich.
The growing popularity of drones has raised major safety concerns. Because drones can run out of power, forcing them to land immediately, they must be able to detect safe landing spots and properly execute landing operations. Furthermore, potential crash situations arise when drones temporarily lose their GPS position information, for instance, when flying close to buildings where GPS signal is lost. In such situations, it is essential that drones can rely on back-up systems and regain stable flight.
The UZH drones are equipped with a single camera and acceleration sensors. Their orientation system emulates the human visual system and sense of balance.
As soon as a toss or a failure situation is detected,
computer-vision software analyses the images to identify distinctive
landmarks in the environment and restore balance. All image processing
and control runs on a smartphone processor onboard the drone.
This
renders the drone safe and able to fulfil its mission without any
communication or interaction with the operator."Our system works
similarly to a tight-rope walker. When you balance on a rope, you fixate
on some static points in the environment and shift your weight
accordingly to restore balance," says Matthias Faessler, co-inventor of
the technology and researcher in Scaramuzza's group. The same software
builds a 3D model of the environment. If an emergency landing is
required, the drone automatically detects and lands on a flat, safe
location without human intervention.
University of Zurich
University of Zurich
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