24 août 2018 | International, Aérospatial, Naval, Terrestre
By: Aaron Mehta
WASHINGTON — With China now the second-largest spender on defense in the world, Chinese companies are logically going to rank among the largest defense firms. But quantifying that number has proven incredibly difficult thanks to the opaque nature of both government spending and the firms themselves.
Now, a London-based think tank has concluded that seven Chinese firms would rank among the top 20 defense companies in the world, each breaking $5 billion in defense revenues — a proportion that rivals any one nation outside the U.S.
Lucie Beraud-Sudreau and Meia Nouwens, two researchers with the International Institute for Strategic Studies, looked at eight key defense firms from China — the China Aviation Industry Corporation (AVIC), China Electronics Technology Enterprise (CETC), China North Industries Group Corporation (NORINCO), China South Industries Group Corporation (CSGC), China State Shipbuilding Corporation (CSSC), China Shipbuilding Industry Corporation (CSIC), China Aerospace Science and Technology Corporation (CASC), and China Aerospace Science and Industry Corporation (CASIC).
The researchers looked at the largest defense firms and key subsidiaries, excluding a pair of nuclear-focused Chinese companies, classifying each as defense- or civilian-focused. Then they used the differentiation to calculate how much of each company's total revenues was derived from defense-related sales.
19 juillet 2021 | International, C4ISR
Washington DC (SPX) Jul 14, 2021 - DARPA has selected four industry and university research teams for the Invisible Headlights program, which seeks to determine if it's possible for autonomous vehicles to navigate in complete darknes
12 mars 2019 | International, Aérospatial, Sécurité
Working with mentors from Sikorsky, three University of Connecticut engineering seniors are translating their classroom education to the field. Electrical engineering majors Kerry Jones and Joshua Steil, and computer engineering major Ryan Heilemann, are collaborating to build and program an autonomous firefighting drone to battle blazes without a pilot's guidance. “In the world today there's a high prevalence of forest fires, like in California, but the problem is of how to safely put out these fires,” says Steil. “So our project, in essence, is to see if we can start putting out fires without a human driver.” Once finished, the drone will carry a thermal imaging camera to identify a fire, object avoidance technology to steer clear of any obstacles, and a softball-sized fire-extinguishing ball that will be dropped over the flames. The system's technology will be tied together through coding language developed by the students, and will operate based on inputted coordinates. While their drone will only be able to put out a campfire-size blaze, the project is meant to prove that this technology is possible, so that much bigger technology can be engineered in the future, says Heilemann. “The idea is that in the future, on a larger scale, there can be a fleet of unmanned helicopters that can go out and put out forest fires, thereby lowering loss of life,” says Steil. While drones are currently used by fire departments across the country, all of them so far have a pilot who navigates the drone from a distance, and most are used for observation, not fire suppression. “The autonomy definitely makes it different,” says Jones, “and the fire-extinguishing ball, for sure.” Teams in previous years have worked on similar projects with Sikorsky, which provided some guidance on what has worked and what has not. The team looked back on previous projects' reports, including last year's team, which was the first to integrate firefighting capabilities into the drone. While the previous team to work on this project used small thermal sensors called thermopile array sensors, Heilemann says these sensors required the previous drone to be only about six feet from the flames, which was too close for real-world applications. His team decided to use an infrared camera, which allows for more distance from the flames. This year's team had the added benefit of working on their project in UConn's brand new 118,000 square-foot Engineering and Science Building, which features three engineering floors filled with faculty and labs focused on robotics, machine autonomy, and virtual and augmented reality. At Sikorsky, the team is working with a recent UConn School of Engineering alum, Jason Thibodeau, deputy manager of Sikorsky's Flight Controls and Autonomous Systems Department. “He's really helpful. We have phone meetings every Monday, and we tell him what's going on, what we're struggling with, and he reasons with us,” says Jones. Adds Heilemann, “He really wants us to figure our way through issues we have, instead of just giving us a direct solution.” Working with Sikorsky also introduced the UConn seniors to new career options. Jones has accepted an offer with Sikorsky after she graduates, in their autonomy lab as part of their Rotary and Mission Systems department. Steil has accepted a job offer with Sikorsky's parent company, Lockheed Martin, in Massachusetts after graduation. “Working with Sikorsky definitely sparked a greater interest looking into the company as a whole,” he says. Heilemann also decided to go into the aerospace industry, and has found a job doing control and diagnostics at another aerospace company. Most importantly, the collaboration was a chance to get some experience with a top company. “In this project, I get to learn so much about Sikorsky and what they do,” says Steil, “and having a company like that so close to home and have them be our sponsor is definitely an added benefit.” https://dronescrunch.com/autonomous-firefighting-drone/
15 août 2024 | International, Terrestre