Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Swarm-bots could boldly go where no man has gone before

09.11.2006
An award-winning IST research team has developed highly unusual mini-robots, or swarm-bots, that work as a team to overcome challenges. While their cooperative behaviour is inspired by the actions of the tiny ant, their abilities could eventually take them to outer space.

Imitating insects such as ants, highly mobile small robots can accomplish physical tasks that no individual robot of the same size could manage. But if more sophisticated versions appear, then such machines could complete coordinated tasks in a way that could revolutionise the way we think about our world today.

An IST project in the Future and Emerging Technologies programme called Swarm-bots has lead the field in this area, and as a result the project partners have gained a great deal of publicity for their work. Marco Dorigo of the Université Libre de Bruxelles coordinated the project, and explains what the team achieved.

“We produced thirty-five complete s-bots [the individual bots that make up one swarm-bot], and completed many experiments with them,” he says. Just 12 cm in diameter, these mini-robots are packed with computing power, sensors and actuators, he adds.

In one trial, the s-bots linked up to bridge and thus pass over a hole in the ground. In another they jointly carried objects too weighty for a single robot to handle.

Dorigo likens the job of cooperatively finding objects to ant behaviour, although ants of course create their trails using pheromones.

He continues, "In our most complex experiment, we placed 20 robots in a big room to retrieve one object to a ‘nest’. This involved building a chain of eight robots spaced thirty centimetres apart and visible to one another. The other robots followed the chain to find and retrieve the object, all in just ten minutes.”

Each robot carries sophisticated technology, including a panoramic camera, sensors that detect sound, infrared, light, temperature and humidity, motors for the grippers (or claws), and WiFi and USB connections. A unique feature of the s-bots is their ability to attach to one another using the grippers – researchers have tested both hard and flexible versions.

The project partners successfully created s-bot types ranging from single autonomous machines to larger ‘swarms’. They also tested robotic control for simple tasks. “Control was vital to the project,” says Dorigo. “The robots autonomously attach to each other and move around in coordination. Their tracks and wheels guide their directional movement. Though the robots do not talk among themselves, they receive low-level signals – such as individual push and pull forces – allowing coordinated group movement.”

In one experiment, three robots called on a control program or ‘controller’ to minimise the traction force. Wirelessly downloaded into the robots, the controller was not designed by human beings.

The Swarm-bots coordinator won a Marie Curie Excellence Award in 2003 for his research on ant-colony optimisation and ant algorithms. In 2005, he was also awarded Belgium’s FNRS Prize (Prix Dr A. De Leeuw-Damry-Bourlart) for his contributions to the foundation of the ‘swarm intelligence’ discipline.

What could these robots do if they move beyond prototypes? “They could help in disasters, for instance picking through earthquake rubble to find trapped people. They could also be built into homes and buildings, emerging when needed to check out the local environment by creeping along the floor, walls or ceilings,” he says.

The s-bots are still far from real-world applications. Yet they have caught the attention of NASA. Famous for its Mars lander exploits, that organisation is seriously interested in robotic technologies that could be used to construct structures on other planets, if necessary without external direction.

Dorigo says challenges lie ahead in programming and controlling robots like this: “Today they exhibit simple or reactive behaviour. We would like to do things such as adaptive task allocation, for example using only ten robots out of one hundred to solve a problem, rather than all of them together.”

Dorigo's wish list also includes using muscle-like materials, as found in nature, instead of rigid metal and plastic. Enhanced memory would also help, allowing machines to find their own solutions to problems after assessing their environment.

Some of these wishes may be addressed in Swarmanoid, a three-year follow-on project launched in October 2006. Dorigo, who is also coordinating this project, hopes to create three different kinds of advanced robots. Featuring open-source software, these super s-bots will crawl, climb or fly, working alone or together.

Jernett Karensen | alfa
Further information:
http://istresults.cordis.lu/

More articles from Power and Electrical Engineering:

nachricht Waste from paper and pulp industry supplies raw material for development of new redox flow batteries
12.10.2017 | Johannes Gutenberg-Universität Mainz

nachricht Low-cost battery from waste graphite
11.10.2017 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Ocean atmosphere rife with microbes

17.10.2017 | Life Sciences

Neutrons observe vitamin B6-dependent enzyme activity useful for drug development

17.10.2017 | Life Sciences

NASA finds newly formed tropical storm lan over open waters

17.10.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>