28 février 2020 | International, Aérospatial, Terrestre

Robots Autonomously Navigate Underground in DARPA Challenge

Whether robots are exploring caves on other planets or disaster areas here on Earth, autonomy enables them to navigate extreme environments without human guidance or access to GPS.

The Subterranean Challenge, or SubT, is testing this kind of cutting-edge technology. Sponsored by the Defense Advanced Research Projects Agency (DARPA), the contest concluded its second circuit on Wednesday, Feb. 27. Taking first in the competition was CoSTAR, a 12-robot, 60-person team led by NASA's Jet Propulsion Laboratory (there were also winners declared for a separate, virtual competition).

SubT is divided into four circuits spread over three years. With each, teams program their robots to navigate a complex underground course. The first contest, held last August, took place in a mine. For the most recent, called the Urban Circuit, teams raced against one another in an unfinished power plant in Elma, Washington.

Each team's robots searched for a set of 20 predetermined objects, earning a point for each find. For the Urban Circuit, CoSTAR earned 16 points; the No. 2 team, with 11 points, was Explorer, led by Carnegie Mellon University.

"The goal is to develop software for our robots that lets them decide how to proceed as they face new surprises," said CoSTAR's team lead Ali Agha of JPL. "These robots are highly autonomous and for the most part make decisions without human intervention."

CoSTAR, which stands for Collaborative SubTerranean Autonomous Robots, brought machines that can roll, walk or fly, depending on what they encounter. Along the way, the bots have to map the environment and find objects like a warm mannequin that simulates a disaster survivor or a lost cellphone with a Wi-Fi signal. This particular course, which aims to simulate an urban environment, also included a carbon dioxide leak and a warm air vent.

Joining the team for the Urban Circuit was a four-legged robot called Spot, which was provided by Boston Dynamics.

"One of the two courses we had to run had multiple levels, so it was great that the Boston Dynamics robots were fantastic on stairs," says Joel Burdick, a Caltech professor and JPL research scientist. He is the leader of the Caltech campus section of the CoSTAR team.

As the bots explore, they send back video and digital maps to a single human supervisor, who they remained in radio contact with for the first 100 feet (30 meters) or so of the course. They can extend that range by dropping communications nodes, a kind of wireless repeater.

Once out of contact, it's up to each robot to decide whether to proceed or backtrack in order to update the team. Each must also rely on fellow robots to access different levels of the course. For example, a wheeled robot might request a quadrupedal one to climb or descend a flight of stairs.

"These courses are very, very challenging, and most of the difficulty lies in communicating with the robots after they've gone out of range," Agha said. "That's critical for NASA: We want to send robots into caves on the Moon or Mars, where they have to explore on their own."

Mapping caves on the Moon or Mars could identify good shelters for future astronauts. Moreover, if it exists at all, microbial life has a better chance of survival under the surface of Mars or within the icy seas of planetary moons, like Europa, Enceladus and Titan. NASA wants to search for life in these regions, where robots would be frequently out of contact.

The next circuit in the Subterranean Challenge will be set in an undisclosed natural cave network this August. A final circuit that blends tunnels, urban environments and natural caves will take place in August of 2021. Teams competing in that final event have the opportunity to win up to $2 million in funding from DARPA.

CoSTAR, includes JPL; Caltech, which manages JPL for NASA; MIT; KAIST (Korea Advanced Institute of Science and Technology); Sweden's Lulea University of Technology; and industry partners.

News Media Contact

Andrew Good
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-2433
andrew.c.good@jpl.nasa.gov

2020-041

https://www.jpl.nasa.gov/news/news.php?release=2020-041&rn=news.xml&rst=7607

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  • NATO defense investment official talks European security and artificial intelligence

    14 décembre 2018 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité

    NATO defense investment official talks European security and artificial intelligence

    By: Sebastian Sprenger BERLIN — As the European Union positions itself to become a defense force in its own right, some in Washington have wondered if such moves would weaken NATO as the dominant trans-Atlantic security pact. Alliance leaders, including Camille Grand, who serves as NATO's assistant secretary general for defense investment, have defended EU efforts, arguing something good will come out of it if both organizations manage to cooperate. Grand sat down with Defense News Europe Editor Sebastian Sprenger during the NATO-Industry Forum in Berlin in November to discuss the state of play between the EU and NATO, defense spending by allies, and new technologies on the horizon. NATO Secretary General Jens Stoltenberg has said the alliance can benefit from the European Union's newfound interest in all things defense. How so? It can be fruitful for both organizations as long as we work well together. Of course it is good news to see the European Union as a more active player in the field of defense, provided that we operate in an environment where we avoid competing guidance to the member states and the allies, especially those who are members of both organizations, and provided that the EU effort strengthens trans-Atlantic security by enabling the European allies to acquire capabilities earlier or faster or in a more efficient way. Outlook 2019: World leaders and analysts speak on the state of global security and the defense industry We have a number of areas of cooperation between the EU and NATO, including in the field of capability development. Could things be better? Yes, probably, for example in terms of interaction between both organizations and fostering transparency, access to relevant documents, and so forth. Ultimately, I think the issue is whether the European effort can be a good contribution to a broader burden-sharing effort. But I think we also have to keep in mind that the effort in the field of defense remains primarily with nations. There is still a sizable trans-Atlantic imbalance as it pertains to the size of the defense-industrial base. Is that detrimental in the long run? The situation is relatively well-known. The defense market in North America, and especially in the United States, is larger than in Europe. There is an imbalance in defense spending; that's the whole point about the defense investment pledge, to partially correct that and having European members invest more in defense. Beyond that, the consolidation of defense industries took place in the United States earlier. In Europe it is still a process that is underway. There are still many companies competing for all sorts of markets. We have a fragmented demand and a fragmented supply, if you will. The issue is not to end up with a single company in Europe or in the U.S.; I think competition is healthy. The issue is: Can we tackle the issue of fragmentation in a European market? As seen from NATO, we don't really do industrial policy, per se. That's really a European Commission perspective. If it enables Europeans to be more efficient in delivering the capabilities we all need in the alliance, that can be good news. What do you expect to come out of industry consolidation in Europe? First of all, I think it has to be a business-driven process, primarily. It's not for organizations such as the EU or NATO to decide. I think what is true is that we see repeatedly cases of where there are a very large number of types of equipment in the same category available. There are a number of medium and small players in Europe that are part of the defense equation, and the defense industry is something where states look carefully at preserving some national capacity. The issue is: Should that organization evolve over time into a slightly more consolidated market? For me, the key criteria is to promote opportunities for multinational cooperations, which is something that we do both at NATO and the EU. It's very important that allies who are EU member states, when they are in a position to do so, decide to go for multinational solutions — with or without a single industrial champion. The European NATO members have pledge to spend more on defense. How does that manifest itself from where you sit? First of all, they are indeed spending more on defense. The increase in defense spending for this year is expected to be more than 5 percent for Europe and Canada. It's a complete overturn from the previous 25 years. We are now in the fourth year in a row of increasing defense spending. This is starting to make a real difference. In the last couple of years, Europe and Canada have spent €36 billion (U.S. $27 billion) more on defense than they had done previously. This starts being real money. It enables us to do three things: First of all, to fill some of the very serious gaps that we have — whether in ammunition or spare parts, for example. Secondly, to reinvest in building up capabilities for identified shortfalls, for example air-to-air refueling, anti-submarine warfare, all sorts of domains. Thirdly, to invest in defense for innovation. For example, take a deeper look at disruptive technologies, 21st century technologies. From where I sit, I can see two things. First of all, the NATO defense-planning targets have been apportioned by all allies. It's the first time in history that all allies have agreed to deliver what they are being asked. Secondly, all allies have agreed to keep increasing their defense spending. We might see nuances in terms of when they intend to reach 2 percent of GDP, which has partly to do with the politics in each country. But I think the political commitment is very strong and was strengthened by the Brussels summit in many ways. There is more money coming, and that creates more opportunities not only for new capabilities but also more cooperation. I think altogether, we have a dynamic that is very positive. Ultimately it makes a difference. People were always pointing at the fact that the Russian Federation had tripled its defense budget over the previous decade. Without trying to match that in any shape or form into an arms race, we also have seen now that reinvesting massively in defense, as the Russian Federation has done, has given Moscow more ability to act in the Middle East, to modernize its conventional and nuclear forces, and so on and so forth. The notion that investing in defense doesn't make a difference is wrong. What are the top three of four areas that need more investment for NATO? One that we are focusing on is the joint intelligence, surveillance and reconnaissance domain. This is something where modern warfare requires us to have an edge. Then also I would emphasize mobility, both tactical and strategic. All of our missions require the alliance to be very mobile and be able to forward-deploy quite quickly. I would also cite integrated air and missile defense as a domain of focus. And lastly, the maritime domain, especially anti-submarine warfare. But those are only examples. We are in the process of designing NATO for the 21st century, which needs to be more agile and regain a degree of robustness that we didn't necessarily anticipate 10 years ago when we were working on the assumption that the primary objective of NATO would be to have light, deployable forces to go out of area. I could have mentioned cyber, of course, as a priority. I didn't mention it because while it is obviously a major, major domain for building our capabilities on, it is probably not as cash-intensive as others. The Germans seems to be perpetually moving toward 2 percent of GDP on defense, as opposed to saying when they will reach it. Is that enough? Is the GDP-percentage metric suitable for defense contributions? First of all, Germany has turned a corner on defense spending. I would note that Germany has a commitment to move to 1.5 percent, which is significant. Is this enough? Probably not. And Germany should meet its political commitment like other allies and aim towards moving as quickly as possible to the 2 percent objective. Having said this, 2 percent is a figure that is quite reasonable. The Cold War figure for Germany was more in the 3 percent realm. The notion that 2 percent would be a massive and disruptive number doesn't seem to me quite convincing. The second argument that I sometimes hear in the wealthy European countries is that 2 percent when you're rich is much more difficult to achieve. I could exactly reverse that argument, saying 2 percent when you're poor is much more difficult to achieve because then you're competing with much more immediate, existential needs in terms of infrastructure, education and so on. From that perspective, the good news with the 2 percent concept is that the burden is the same for everyone. Of course, with Germany being the largest economy in Europe, a lot of effort tends to be indeed with Germany. Germany already has demonstrated a willingness to move significantly in this direction, and there are high expectations that it will continue down that route and meet the target. I honestly think it's both doable and manageable. But then, of course, that doesn't happen overnight. Are NATO and the EU on the same page when it comes to modernizing the members' combat aircraft fleets, especially in Europe? I wouldn't say there is a NATO-EU competition or disagreement over that because, first of all, NATO doesn't take sides in terms of choosing equipment. NATO identified the need to modernize and keep an effective air force. And then each ally can decided which way they want to go. Some of them, quite a number now, have decided to go for the F-35 solution. On the other hand, other allies have either recently acquired planes that are quite modern — whether it's the Eurofighter or the Rafale — or are projecting to build together — as the French and the Germans [are] — the next generation of aircraft. Britain is also contemplating its own. From a NATO perspective, I think it's fair to say that we recognize every ally's right to pursue what they think is the best approach to address a capability challenge. 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And maybe sometimes we over-focus on AI only, as if it was the single game changer. Nobody has fully assessed how much it's going to change the way we do military operations. Is AI going to be a tool to assist in decisions, or is AI going to allow for more autonomous systems to operate? On this, we've been working very, very hard, including with Allied Command Transformation. https://www.defensenews.com/outlook/2018/12/10/nato-defense-investment-official-talks-european-security-and-artificial-intelligence

  • L3 Technologies and Saudi Arabian Military Industries Enter Into Joint Venture

    19 juin 2019 | International, C4ISR

    L3 Technologies and Saudi Arabian Military Industries Enter Into Joint Venture

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  • As Defender 2020 drill winds down, US Army plans for 2021 edition

    13 juillet 2020 | International, Terrestre

    As Defender 2020 drill winds down, US Army plans for 2021 edition

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