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June 13, 2019 | International, Security, Other Defence

What’s so sweet about sugar cube-sized robots?

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If there is anything the future is lacking, it's robots the size of Chiclets. Draper, working under a grant from the Defense Advanced Research Projects Agency, is creating centimeter-sized robots, for future use in rescue work. The project is named “SHort-Range Independent Microrobotic Platforms,” or “SHRIMP” for short.

And short is the nature of the game. SHRIMP is based on the 4 cm long, 1.5 g Harvard Ambulatory MicroRobot (HAMR), and wants to shrink it down to a single cubic centimeter. That will require microelectromechanical systems, 3D printing, piezoelectric actuators and, this is crucial, low-power sensors. Once all of that is in place, Draper claims the microbot will be able to jump, sense, navigate and control itself. The design will rely on feet inspired by living creatures to give it extra friction on rough and vertical terrain, and inertial measurement to detect where it is on the ground.

“The microrobotic platform capabilities enabled by SHRIMP will provide the DoD with significantly more access and capability to operate in small spaces that are practically inaccessible to today's state-of-the-art robotic platforms,” declared DARPA in the proposer's day note. “Such capability will have impact in search and rescue, disaster relief, infrastructure inspection, and equipment maintenance, among other operations.”

The exact “how” of what these robots will do in disaster relief, inspection, maintenance or other operations is yet to be determined, and will largely hinge on the sensors that can be fit to the platform. The most useful thing a small robot can do is get into a space and send information back to humans about that space, but that's hardly the only metric to evaluate the platform.

As part of the SHRIMP program, DARPA will have the robot designs compete through a series of events modeled after the Olympics. These include high jump, long jump, weightlifting, shot put, tug of war, rock piling, steeplechase, biathlon, vertical ascent — all ways to find out what useful tasks tiny robots can do.

There's a world of speculation between a dime-sized robot that can pile rocks and a useful military tool, but the fact that DARPA is invested in the technology as a platform suggests that, should the technology get there, the design will have some unexpected utility. In the meantime, DARPA's interest suggests there's good odds on a future market for sensors designed for dice-sized robots.

https://www.c4isrnet.com/unmanned/robotics/2019/06/12/what-does-darpa-want-with-sugarcube-sized-robots/

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  • Army picks two companies to build prototypes for a new cannon-toting vehicle to back up infantry

    December 18, 2018 | International, Land

    Army picks two companies to build prototypes for a new cannon-toting vehicle to back up infantry

    By: Todd South The Army has selected two companies to provide prototypes of a new armored, tracked vehicle to give infantry units necessary firepower Both Michigan-based General Dynamics Land Systems and BAE Systems will have the next 14 months to build and begin delivering 12 prototypes of the Mobile Protected Firepower vehicle. BAE Systems will build an M8 Buford Armored Gun System with new capabilities and components. GD submitted an offering that puts a version of its latest Abrams turret together with a chassis that uses past work on the United Kingdom's AJAX program. The ultimate product will be either a 105- to 120mm cannon and a tracked vehicle that can withstand a classified level of enemy fire. At least two of the vehicles should be able to fit into the back of a C-17 aircraft. The need is aimed at near-peer threats. Brig. Gen. Ross Coffman, director of the Next Generation Combat Vehicle Cross Functional Team, said that the current and future battlefield will challenge the firepower of the infantry. Right now, Infantry Brigade Combat Teams have artillery to knock out secured enemy positions. “But there's no precision munition to remove bunkers from the battlefield, to shoot into buildings in dense urban terrain,” Coffman said. The MPF vehicle and weapon will be used to “disrupt, break in and breach those secure defensive zones,” Coffman said. The requirement first emerged in the Army's vehicle modernization strategy in late 2015. The target was to give IBCTs a protected, long-range, cyber-resilient, precision, direct-fire capability for early or forcible entry operations. In February, GD and BAE, along with SAIC partnering with Singapore's ST Kinetics and CMI Defense, all submitted proposals. The SAIC team combined CMI's Cockeril 3105 turret with ST Kinetics next-generation armored fighting vehicle chassis. Officials would not discuss the reasons behind the selection. They expect a final decision to be made by fiscal year 2022. Fielding to the first units is expected by fiscal year 2025. The MPF is under the Army's NGCV CFT program, which is overseen by the Army Futures Command. The plans are for roughly 54 vehicles, initially. They will build 26 first, with an option to build 28 more and retrofit eight prototype vehicles. For the existing vehicle fleet, there's another program that's been conducting recent testing to also enhance the combat vehicle firepower and protection. The Army chose to evaluate two Active Protection Systems at a November live-fire rodeo, looking at whether either system could work as an interim protection system for one of its combat vehicles. The APS will also go onto the MPF vehicle in development at this time. The Israeli-made Trophy VPS by Rafael, a slimmer edition of the Trophy System already on the Abrams tank, and the German-made Active Defense System by Rheinmetall got a chance to showcase their products' abilities atop Strykers at the live fire, according to Military Times sister publication Defense News. Rheinmetall partnered with Michigan-based Unified Business Technologies. They've dubbed their system “Strike Shield.” Army representatives saw the Trophy VPS on a Bradley Fighting Vehicle at a demonstration in Israel in August, Defense News reported. Earlier this year, the Army awarded a $193 million contract to Leonardo DRS for its Trophy APS on the M1 Abrams tank. The program conducted four “soft kill” demonstrations using virtual threats with the system and controller. The APS is an interim solution as the Army develops its Modular Active Protection System as part of a larger suite of Vehicle Protection Systems. In late 2018, developers with the Tank Automotive Research Development and Engineering Center completed successful testing on the MAPS. The MAPS base kit is an array of sensors and countermeasures used with the Modular Active Protection Systems Controller, giving vehicle crews a single solution to run APS for incoming threats such as enemy drones or anti-tank weapons. Bill Beyer, MAPS Virtual Demonstrator lead, said in release following MAPS testing that the base kit would move into the vehicle program portfolio by mid-2019. Rafael was selected to provide its Trophy APS for the Abrams while IMI, also an Israeli company, has put forth the Iron Fist for the Bradley. Participants didn't fully install their systems on the vehicle. They put up mock rigs for testing in front of Strykers mounted their system on a Stryker. https://www.armytimes.com/news/your-army/2018/12/18/army-picks-two-companies-to-build-prototypes-for-a-whole-new-cannon-toting-vehicle-to-back-up-infantry/

  • F-35 gives European air forces an edge over Russia, but coordination is key

    November 9, 2020 | International, Aerospace

    F-35 gives European air forces an edge over Russia, but coordination is key

    By Garrett Reim5 November 2020 The growing number of Lockheed Martin F-35 Lightning II stealth fighters possessed by European air forces would give the NATO alliance an edge over Russia in high-intensity conflict. That's according to a report by think tank RAND, released last month, which explains that Russian political and military leaders are already concerned about NATO's advantage in the air domain – a worry that is likely to worsen as the number of fifth-generation aircraft grows to the west. There are seven European NATO nations that operate or plan to buy the F-35: Belgium, Denmark, Italy, the Netherlands, Norway, Poland and UK. By 2025, those militaries ought to collectively own more than 200 examples of the stealth fighter. “This will exceed the number of US fifth-generation aircraft stationed in the European theatre by a wide margin,” says the report. The combined force of F-35s possessed by European allies is likely to approach 400 aircraft by 2030 and would represent roughly 30% of the combined fleet. For its part, Russia plans to acquire 76 examples of Sukhoi Su-57 fifth-generation fighter by 2028. Moscow said recently the first such stealth aircraft would be delivered by December 2020. European allied air forces have around 1,900 fourth-generation fighters comprising types such as the Dassault Rafale, Eurofighter Typhoon and Lockheed F-16. The combined force currently has less than 100 F-35s fielded, according to RAND. Those fourth-generation aircraft would be vulnerable in a high-intensity conflict against Russia, a country with robust surface-to-air missile defences. “During the opening phases of a conflict with Russia, vulnerability to advanced ground-based threats would constrain the roles of most fourth-generation and so-called fourth-generation-plus platforms,” says the report. “As long as an extensive [integrated-air defence] threat persisted, more advanced platforms such as the Rafale or Eurofighter could theoretically perform strike missions inside the threat zone in conjunction with fifth-generation platforms, although this approach could yield unacceptable attrition.” But with fourth-generation fighters likely still to make up 70% of European NATO air forces by 2030, the alliance needs to find ways to make better use of the aircraft. MISSILE TRUCKS The fast jets could be used to launch long-range missile strikes from beyond the range of Russia's surface-to-air missiles. And, if upgraded with active electronically scanned array (AESA) radars, European fourth-generation fighters would be more capable on defence. AESA radars can detect, track and identify more targets, faster and at much longer distances, notes RAND. “The resultant situational awareness and ability to defeat multiple threats at the same time makes an AESA capability essential for aspects of high-intensity operations—for example, to intercept cruise missiles,” says the think tank report. “The French decision to procure AESA [for the Rafale fighter] is informed by the opportunity to provide a 50% increase in detection range, including of low-observable targets, and maximise the value of new weapon systems such as the [MBDA] Meteor beyond-visual-range missile.” The Meteor is an active radar guided beyond-visual-range air-to-air missile that is reported to have a reach of 54nm (100km). In theory, if a fourth-generation fighter like the Rafale has an AESA radar and is armed with a beyond-visual-range missile like the Meteor it ought to be able to see and hit incoming Russian aircraft, while staying out of reach itself. However, beside the addition of AESA on the Rafales, other European fourth-generation aircraft lack the advanced radar. “Uncertainties remain as to which nations will invest in AESA radar technology, advanced and long-range munitions, and secure communication links, among other important capabilities,” says RAND. “The degree to which European air forces acquire these technologies will directly impact their ability to contribute to the range of combat air missions expected in a high-intensity conflict.” The UK Royal Air Force announced in September plans to add the Leonardo UK ECRS Mk2 AESA radar to 40 examples of its Tranche 3 production-standard Typhoons, with initial operational capability targeted for 2025. Ultimately, to make the most of a mixed fleet of fourth- and fifth-generation aircraft NATO will need to invest in communications technologies to link the jets, as well as training exercises to practice coordinating the combat aircraft. F-35's can communicate among themselves with their multifunction advanced data link (MADL), a low probability of intercept communications link. RAND points to a fourth and fifth generation fighter operating concept called “combat intelligence, surveillance and reconnaissance (ISR) mode” described by Justin Bronk of the Royal United Services Institute think tank. “In the ‘combat ISR' mode, a four-ship flight of F-35s connected by MADL generates situational awareness and shares targeting data with legacy platforms that can then fire their payloads from outside the range of the most capable of the enemy's air defences,” explains RAND. The fourth- and fifth-generation combat aircraft would communicate and pass targeting information with the Link 16 system, adds the report. RUSSIAN EW HAS A VOTE However, this might be a vulnerability point. “It is reasonable to assume that the Russian military would seek to disrupt this synergy during a conflict, particularly in light of recent Russian investments in EW [electronic warfare] capabilities,” RAND says. Still, European NATO militaries are getting more practice with the F-35. “Already, allies have undertaken initial steps to establish common tactics, techniques, and procedures for incorporating fifth-generation assets into combined operations through targeted exercises as well as preliminary synthetic training systems that link fourth- and fifth-generation aircraft,” the think tank says. One of the highest hurdles to NATO collaboration might be investment in aircraft readiness. “To be operationally relevant during a theatre conflict, NATO's air forces must maintain a sufficient number of available aircraft, munitions, and aircrew,” says RAND. “Currently, most European air forces maintain around half of their existing fleets or less at mission-capable status, with some allies falling below that mark.” What's more, many fourth-generation aircraft are suffering from “rising maintenance costs from platform age, operational wear and tear resulting from a high operational tempo, and challenges associated with spare parts pipelines serve as significant constraints to aircraft availability”, says the report. The new F-35 also has teething problems, including its Autonomic Logistics Information System, a support system that is so troubled that it has to be replaced across the worldwide fleet. RAND recommends a number of solutions to NATO aircraft readiness problems including making public data on mission capable rates. It also suggests “public agreement by NATO leaders on standard availability objectives could provide renewed political and budgetary focus on efficient and adequately funded maintenance and sustainment”. Ultimately, RAND concludes that the growing number of stealth aircraft in Europe means the “trend lines lead in the right direction”. “With additional budgetary and policy attention to increasing readiness, European allies have the opportunity to significantly enhance combat airpower over the coming decade,” says the think tank. https://www.flightglobal.com/fixed-wing/f-35-gives-european-air-forces-an-edge-over-russia-but-coordination-is-key/140992.article#:~:text=Fixed%2DWing-,F%2D35%20gives%20European%20air%20forces%20an%20edge,Russia%2C%20but%20coordination%20is%20key&text=The%20growing%20number%20of%20Lockheed,Russia%20in%20high%2Dintensity%20conflict.

  • SAIC wins spot on $1.8bn US DoD PRISM contract

    December 31, 2024 | International, C4ISR, Security

    SAIC wins spot on $1.8bn US DoD PRISM contract

    SAIC has secured a position on the $1.8bn Personnel and Readiness Infrastructure Support Management (prism) contract vehicle.

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