Soon, ‘robobees’ that mimic bees’ behaviour

Washington, Sep 13 (ANI): A Northeastern University neurobiologist is collaborating with Harvard University researchers to develop micro flying robots that will emulate the bees’ brain, body and collective behaviour.

Biology professor Joseph Ayers would create robots, called the robobees, which would mimic the communal feeding behaviour of bee colonies.

The project will draw on the knowledge of computer scientists, engineers, and biologists to construct an electronic nervous system, a supervisory architecture and a high-energy source to power the innovative robots.

“This project will integrate the efforts and expertise of a diverse team of investigators to create a system that far transcends the sum of its parts. We expect substantial advances in basic science at the intersection of these seemingly disparate disciplines to result from this effort,” said Ayers.

Inspired by the biology of the bee and the insect’s colonial behaviour, the project aims to advance miniature robotics and the design of compact high-energy power sources.

The project would also spur innovations in ultra-low-power computing and electronic “smart” sensors that mediate biomimetic control.

In addition, it would refine coordination algorithms to manage multiple, independent machines.

Ayers is widely known for his work in biomimetics- the science of adapting the control systems found in nature to inform design of engineered systems to solve real-world problems-including the development of RoboLobster and RoboLamprey.

The autonomous, biomimetic underwater robotic models emulate the operations of the animals’ nervous systems using an electronic controller based on nonlinear, moving models of neurons and synapses.

“Animals have evolved to occupy every environmental niche where we would hope to operate robots, save outer space. They provide proven solutions to problems that confound even the most sophisticated robots, and our challenge is to capture these performance advantages in engineered devices,” said Ayers. (ANI)

Robo fish to shed light on how fish swim upstream

Dublin, July 13 (ANI): Soon, with the help of a swimming robotic fish, scientists would be able to understand how fish swim upstream.

According to a report by the Independent News and Media Limited, five research institutions, including the University of Bath, have been given 1.8 million euros by the European Commission to build the swimming robot.

The consortium is led by the Tallinn University of Technology in Estonia, with partners Riga Technical University in Latvia, Italian Institute of Technology and the Universities of Verona and Bath.

The robotic fish will react to changes in current or flow, as a real fish might encounter in a fast-flowing stream or near the seashore.

It will also be used to film marine life near the shore, where conventional propeller-driven submersible robots have difficulty maneuvering due to shallow water, kelp and currents created by waves.

The researchers will try to mimic the sense organ found in fish, called the lateral line, which allows the fish to detect the flow of water around it and react to it.

The fish’s complex nervous system will be emulated by computer software, which will allow the robot to adjust its swimming behaviour to compensate for the flow of water.

When the robot hits the water in a few years’ time, it can also be used in biological research, de-mining activities, pollution control and monitoring the world’s ecosystems.

The team at the Ocean Technologies Lab at Bath in the University’s Department of Mechanical Engineering will be leading the fish biology for the project, looking at how fish respond to changes in flow.

According to Dr William Megill, lecturer in Biomimetics at the University of Bath, “Currently, most aquatic robots can’t maneuver very well in the shallow water near the shore because they just get smashed against the rocks by the force of the waves.”

“However, even in a tsunami, fish manage to sense and swim against the current so that they stay in the water, rather than ending up on the beach,” he said.

“So this project is interesting on two levels – firstly we want to understand more about how the fish manages to react to changes in current, and secondly we want to create a robot that mimics this artificially,” he added. (ANI)

Soon, robotic octopus to solve the mysteries of seas

London, Mar 22 (ANI): Scientists are developing a robotic octopus that will be able to search the seabed with the same extraordinary dexterity as the real eight-legged cephalopod.

With no solid skeleton, the robot would be the world’s first entirely soft robot, say researchers.

The trouble with today’s remote-controlled subs, says researcher Cecilia Laschi of the Italian Institute of Technology in Genoa, is that their large hulls and clunky robot arms cannot reach into the nooks and crannies of coral reefs or the rock formations on ocean floors.

This implies they are unable to photograph objects in these places or pick up samples for analysis. And that’s a major minus point for oceanographers hunting for signs of climate change in the oceans and on coral reefs.

Since an octopus’s tentacles can bend in all directions and quickly thin and elongate to almost twice their length, they can reach, grasp and manipulate objects in tiny spaces with dexterity.

“So we are replicating the muscular structure of an octopus by making a robot with no rigid structure – and that is completely new to robotics,” New Scientist quoted Laschi, as saying.

Laschi and colleagues in the UK, Switzerland, Turkey, Greece and Israel are testing artificial muscle technologies that will more accurately mimic tentacles.

The team plans to mimic the longitudinal muscles with soft silicone rubber interspersed with a type of electroactive polymer (EAP) called a dielectric elastomer. Apply an electric field to this material and it squeezes the silicone, making it shorter.

The study has been published in Biomimetics and Bioinspiration. (ANI)