Thursday, 31 May 2018

Research into fish schooling energy dynamics could boost autonomous swarming drones



May 28, 2018 by Christopher Packham, Tech Xplore

Researchers who want to realize autonomous swarming drones have studied the collective behavior of flocking birds and swarming insects, but a new study by a group of researchers at ETH Zurich has modeled the schooling behavior of fish. Using deep reinforcement learning, the group studied how fish draw energy from water flow and turbulence created by their own swimming schoolmates, gaining insights that could lead to low-energy, collective autonomous drone swarms. And yes, though there are many cool practical applications for the private sector and industry, militaries worldwide are interested in building fleets of autonomous swarming drones. And yes, it is creepy.

Fish schooling formations cut through largely invisible flow fields that redirect the mechanical energy of water, for which fish have to compensate individually and collectively. Changes in flow are caused by tides, water redirected past objects, and the movements of fish themselves. Over millenia, fish have adapted, becoming sensitive to these changes in mechanical energy and developing the ability to extract energy from underwater flow fields.


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