Navigation Links
What makes a robot fish attractive? (Hint: It's in the moves)
Date:3/1/2012

NEW YORK, March 1, 2012 Probing the largely unexplored question of what characteristics make a leader among schooling fish, researchers have discovered that by mimicking nature, a robotic fish can transform into a leader of live ones.

Through a series of experiments, researchers from Polytechnic Institute of New York University (NYU-Poly) aimed to increase understanding of collective animal behavior, including learning how robots might someday steer fish away from environmental disasters. Nature is a growing source of inspiration for engineers, and the researchers were intrigued to find that their biomimetic robotic fish could not only infiltrate and be accepted by the swimmers, but actually assume a leadership role.

In a paper published online in the Journal of the Royal Society Interface, Stefano Marras, at the time a postdoctoral fellow in mechanical engineering at NYU-Poly and currently a researcher at Italy's Institute for the Marine and Coastal Environment-National Research Council, and Maurizio Porfiri, NYU-Poly associate professor of mechanical engineering, found conditions that induced golden shiners to follow in the wake of the biomimetic robot fish, taking advantage of the energy savings generated by the robot.

The researchers designed their bio-inspired robotic fish to mimic the tail propulsion of a swimming fish, and conducted experiments at varying tail beat frequencies and flow speeds. In nature, fish positioned at the front of a school beat their tails with greater frequency, creating a wake in which their followers gather. The followers display a notably slower frequency of tail movement, leading researchers to believe that the followers are enjoying a hydrodynamic advantage from the leaders' efforts.

In an attempt to create a robotic leader, Marras and Porfiri placed their robot in a water tunnel with a golden shiner school. First, they allowed the robot to remain still, and unsurprisingly, the "dummy" fish attracted little attention. When the robot simulated the familiar tail movement of a leader fish, however, members of the school assumed the behavior patterns they exhibit in the wild, slowing their tails and following the robotic leader.

"These experiments may open up new channels for us to explore the possibilities for robotic interactions with live animals an area that is largely untapped," explained Porfiri. "By looking to nature to guide our design, and creating robots that tap into animals' natural cues, we may be able to influence collective animal behavior to aid environmental conservation and disaster recovery efforts."

The researchers posit that robotic leaders could help lead fish and other wildlife that behave collectively including birds away from toxic situations such as oil or chemical spills or human-made dangers such as dams. Other experimenters have found success in prompting wildlife to move using non-living attractants, but the researchers believe this is the first time that anyone has used biomimetics to such effect.


'/>"/>

Contact: Kathleen Hamilton
hamilton@poly.edu
718-260-3792
Polytechnic Institute of New York University
Source:Eurekalert

Related biology news :

1. That which does not kill yeast makes it stronger
2. Light makes write for DNA information-storage device
3. Researchers explain what makes granular material become solid
4. University Hospitals Seidman Cancer Center tests novel drug that makes brain tumors glow hot pink
5. Nano-tech makes medicine greener
6. Simple gut hormone combo makes our brains think were full
7. National Science Foundation makes first awards in Sustainability Research Coordination Program
8. USDA makes $40 million award to ASPB member to develop biofuels from sustainable lumber stocks
9. What makes rainforests unique? History, not ecology
10. New translator app makes sense of foreign-language food menus
11. Natural History Museum of Los Angeles County makes scientific history with pregnant plesiosaur
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/8/2017)... NEW YORK , Feb. 8, 2017 /PRNewswire/ ... an individual,s voice to match it against a ... voice such as pitch, cadence, and tone are ... systems require minimal hardware installation, as most PCs ... remotely for different transactions. Voice recognition biometrics are ...
(Date:2/8/2017)... 2017 Report Highlights ... The global synthetic-biology market reached nearly ... 2021, growing at a compound annual growth rate (CAGR) of ... the global markets for synthetic biology. - Analyses of global ... projections of compound annual growth rates (CAGRs) through 2021. - ...
(Date:2/8/2017)... -- Report Highlights The global biosurgery market ... in 2016 at a compound annual growth rate (CAGR) ... - An overview of the global market for biosurgery. ... 2015 and 2016, and projections of compound annual growth ... on the basis of product type, source, application, and ...
Breaking Biology News(10 mins):
(Date:2/18/2017)... Research and Markets has announced the addition of the ... ... provides separate comprehensive analytics for the US, Japan ... estimates and forecasts are provided for the period 2015 through 2022. ... data and analytics are derived from primary and secondary research. This ...
(Date:2/17/2017)... , Feb. 17, 2017  BioGenex, a ... announce development of a novel system for quantitative ... with the University of Rochester (NY, USA) and ... The new system is able to accurately quantify ... HER2 (Human epidermal growth factor receptor-2) in clinical ...
(Date:2/17/2017)... ... February 17, 2017 , ... ... hobbyists, and DJI, the world’s leading maker of unmanned aircraft systems (UAS), are ... safety officers to use drones effectively, and support educational outreach efforts. , AMA ...
(Date:2/16/2017)... ... 2017 , ... EIT Digital has launched work to develop a ... studies are about to get under way for the framework, which is designed to ... concept is expected to be transferred eventually to other industries that also require efficient ...
Breaking Biology Technology: