30 juillet 2024 | International, Terrestre, Sécurité
21 janvier 2020 | International, Aérospatial
Technical Failure or Unrealistic Expectations? Report Shows U.K. Police Drones Fall in Heavy Rains
Whether technical failure or simply unrealistic expectations, a new report published in the U.K. indicates that the DJI Matrice Series drones fall during heavy rains.
As reported by CNN, the U.K.'s Air Accidents Investigation Branch (AAIB) found that 16 DJI Matrice 200 series drones crashed due to “technical failures” while flying in the rain.
This month's AAIB bulletin reports on one specific incident that took place in a flight over a sporting event:
The DJI Matrice 210 small unmanned aircraft was being operated commercially to record video footage of an outdoor athletics event. The pilot started to position the aircraft back towards the landing site due to an increase in the rainfall. The pilot then saw the aircraft“wobble” slightly and as it neared the landing site it flipped over before descending rapidly to the ground from a height of about 3 m (10 ft). No one was injured. During the accident flightthe aircraft had been operating at heights of up to about 30 m (100 ft) near to, and above people on the ground. This investigation reviewed other similar accidents and the risk of injury to people on the ground.
It's important to note that the professional pilot handled the situation correctly and according to protocol – and as a result, his aircraft was damaged but there were no injuries or issues with the spectators or participants in the event. The event began in light rain, but, as can happen in the U.K., a drizzle became a downpour.
In a statement to CNN, DJI reiterated that safety is a priority:
“The DJI Matrice 200 Series has been independently certified by a third party that it has an IP43 rating,” it said. “This certifies that ‘water falling as a spray at any angle up to 60° from the vertical shall have no harmful effect'. However, the M200 is not suitable, and should not, be operated in conditions or precipitation greater than those stated by the certification.
“All users of M200 series drones should refer to our current maintenance guidelines and safety information here to help manage their aircraft and maximise flight safety.”
The problem may not be as much about a “failure,” which implies the unexpected, as it is one of unrealistic expectations. Much of the advantage of an sUAS is in its small form factor. While the technical capabilities of drones have increased over the last several years, and commercial drones can now maintain stability in a wider range of environments, they aren't airplanes and they aren't designed to be flown in all weather conditions – including a downpour.
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4 janvier 2019 | International, C4ISR
DARPA: Generating Actionable Understanding of Real-World Phenomena with AI
DARPA seeks to develop schema-based AI capability to enhance reasoning about complex world events and generate actionable insights Rapid comprehension of world events is critical to informing national security efforts. These noteworthy changes in the natural world or human society can create significant impact on their own, or may form part of a causal chain that produces broader impact. Many events are not simple occurrences but complex phenomena composed of a web of numerous subsidiary elements – from actors to timelines. The growing volume of unstructured, multimedia information available, however, hampers uncovering and understanding these events and their underlying elements. “The process of uncovering relevant connections across mountains of information and the static elements that they underlie requires temporal information and event patterns, which can be difficult to capture at scale with currently available tools and systems,” said Dr. Boyan Onyshkevych, a program manager in DARPA's Information Innovation Office (I2O). The use of schemas to help draw correlations across information isn't a new concept. First defined by cognitive scientist Jean Piaget in 1923, schemas are units of knowledge that humans reference to make sense of events by organizing them into commonly occurring narrative structures. For example, a trip to the grocery store typically involves a purchase transaction schema, which is defined by a set of actions (payment), roles (buyer, seller), and temporal constraints (items are scanned and then payment is exchanged). To help uncover complex events found in multimedia information and bring them to the attention of system users, DARPA created the Knowledge-directed Artificial Intelligence Reasoning Over Schemas (KAIROS) program. KAIROS seeks to create a schema-based AI capability to enable contextual and temporal reasoning about complex real-world events in order to generate actionable understanding of these events and predict how they will unfold. The program aims to develop a semi-automated system capable of identifying and drawing correlations between seemingly unrelated events or data, helping to inform or create broad narratives about the world around us. KAIROS' research objectives will be approached in two stages. The first stage will focus on creating schemas from large volumes of data by detecting, classifying and clustering sub-events based on linguistic inference and common sense reasoning. Researchers taking on this challenge will apply generalization, composition and specialization processes to help generate schemas that describe both simple and complex events, sequence multiple schemas together to understand key contextual elements like roles and timelines, and apply domain-specific knowledge to tailor the analysis for a particular need. The second stage of the program will focus on applying the library of schemas created during stage one to multimedia, multi-lingual information to uncover and extract complex events. This stage will require identifying events and entities, as well as relationships among them to help construct and extend a knowledge base. DARPA will hold a Proposers Day on January 9, 2019 from 10:00am to 2:30pm (EST) at the Holiday Inn at Ballston, 4610 N. Fairfax Drive, Arlington, Virginia 22203 to provide more information about KAIROS and answer questions from potential proposers. For details of the event, including registration requirements, visit https://www.schafertmd.com/darpa/i2o/KAIROS/pd/. A Broad Agency Announcement that fully describes the program structure and objectives can be found here, https://www.fbo.gov/index?s=opportunity&mode=form&id=0fc6d1a237556c5d59847e7165af3aef&tab=core&_cview=1. Image Caption: This image outlines the two stages of the KAIROS program. The first stage will focus on creating a library of schemas from large volumes of data by detecting, classifying and clustering sub-events based on linguistic inference and common sense reasoning. The second stage will apply those schemas to new information to uncover and extract complex events, as well as relationships among them, to help construct and extend a knowledge base. https://www.darpa.mil/news-events/2019-01-04
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22 septembre 2020 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité, Autre défense
Germany tries to forge a deal on who can play ball in Europe
Sebastian Sprenger COLOGNE, Germany — Time is ticking for Germany to find a compromise on letting American, British and other non-European Union countries tap into the bloc's emerging defense cooperation scheme. The government of Chancellor Angela Merkel has taken on the task of sorting out the issue by the end of the year, when Germany's six-month term at the helm of the European Council concludes. “It is an important issue to solve, particularly for close NATO partners,” Karl-Heinz Kamp, special envoy of the political director at the German Ministry of Defence, said during a panel discussion at the annual Defense News Conference this month. The challenge is to find common ground between two camps within the EU: member states seeking ties with outsiders, and those countries who prefer treating the nascent defense agenda as a members-only affair. Poland, Sweden and the Netherlands are leading a group of nations advocating for openness. But France, for example, is pursuing a more restrictive stance, especially toward Turkey and the United States. From the beginning, the Trump administration has eyed the EU's creation of a defense cooperation mechanism, dubbed PESCO, and the proposed multibillion-dollar European Defence Fund with a degree of mistrust. The efforts run the risk of undermining NATO if America and its powerful defense companies are kept out, Washington claims. The tone has softened more recently, however, as officials on both sides of the Atlantic try to broker a compromise. “One of the things that COVID-19 has really brought into sharp focus is the significance of our integrated defense industrial base,” said Gregory Kausner, executive director for international cooperation, who works in the Pentagon for acquisition chief Ellen Lord. At NATO headquarters in Brussels, leaders are striking a similar chord. “We welcome the EU's effort to invest in defense, and I think altogether this is a good-news story. In a way, the more money put into defense, including by EU institutions, the better,” said Camille Grand, the alliance's assistant secretary general for defense investment. “Then there is a second point: that it is important those projects are allowed as full as possible [the] involvement of non-EU allies. Because the reality is indeed that those non-EU allies have strong connections with the European defense market, with the European defense industry,” Grand added. German officials have been optimistic about reaching a compromise since they took on the third-country challenge this summer. That is because their proposal piggybacks on a paper by the previous, Finnish-run presidency that was only narrowly rejected last year. A few modifications would be enough to clinch a deal. According to a German MoD spokesman, officials aim to present a workable solution to defense ministers at an EU foreign affairs council meeting slated for Nov. 20. Poisoned politics The current political context hasn't exactly been helpful for forging a deal. For one, there is the frosty climate between Germany and United States that stems from President Donald Trump's testy relationship with the country, and his assertion that the EU is taking advantage of American taxpayers on trade and defense. That rift makes the proposition of importing the powerful American defense industrial base into the bloc's defense cooperation calculus an uphill battle, especially in the European Parliament, a Brussels-based analyst argued. And Turkey, which is part of NATO but not the EU, is creating the perfect case study against allowing nonmembers into the inner workings of European defense cooperation because of its dispute with Greece and Cyprus over gas reserves in the eastern Mediterranean Sea. “The German government is fairly optimistic that we will be able to find a compromise. The problem is that currently neither the Turkish policy nor the U.S. policy terribly helps to find such a consensus,” Kamp said. “We have a severe problem in NATO with its internal cohesion because some allies have issues with other allies,” he added. “We have a Turkish-French dispute in the Mediterranean and we have a Greek-Turkish dispute. Turkey is not always behaving in — let me say — in the way of an ideal NATO ally, and that just makes things a little bit more difficult.” At the same time, the flareup has yet to touch the ongoing third-party access negotiations, according to officials and analysts. “Concerns over dependencies, intellectual property and security predate the standoff between Greece and Turkey," said Yvonni-Stefania Efstathiou, a Greece-based defense analyst. Meanwhile, Pentagon officials have begun diving into a set of case studies designed to help them think through the nitty-gritty involved in setting up future cooperative programs under an EU umbrella, according to Kausner. “Those case studies illuminate the potential challenges on things such as intellectual property and re-transfer that we feel are still problematic,” the Defense Department official said. Another avenue to glean lessons for a wider EU application lies in the so-called European Defence Industrial Development Programme, or EDIDP, which aims to boost the bloc's defense industry cooperation through all manners of military technology. In June, the European Commission announced 16 projects eligible for funding from a two-year, €500 million (U.S. $593 million) pot. The selection includes “four participants controlled by entities from Canada, Japan and the United States,” the commission statement read. In theory, those projects “demonstrate the possibility to involve EU-based subsidiaries controlled by third countries or third country entities provided they fulfill appropriate security-based guarantees approved by Member States,” the statement noted. The commission has yet to say which participants hail from North America and Japan, and what roles they play, which suggests their integration into the project structure remains unfinished. As officials continue to sort out the details on intellectual property rights, liabilities and consortium structures, for example, a few principles are beginning to take shape. For one, the four non-EU countries in the European Free Trade Association — Iceland, Liechtenstein, Norway and Switzerland — stand to get rights to partake in EU defense projects similar to member states. In addition, officials consider it easier to include British or American companies in projects when they are removed from immediate funding through the European Defence Fund. While European companies have their eyes on possible subsidies from the fund whenever they enter into PESCO agreements, there may not be an automatic funding eligibility for outside participants. https://www.defensenews.com/global/europe/2020/09/21/germany-tries-to-forge-a-deal-on-who-can-play-ball-in-europe/