“A centralized architecture takes significant computing power to receive and relay multiple signals, and it also has a potential single point of total failure—the base station,” explains Shamma. “Instead, we designed a distributed architecture in which the drones coordinate based on local information and peer-to-peer communications.”The team’s algorithm aims to achieve an optimal level of peer-to-peer messaging—which needed to be not too much, not too little—and rapid reaction times, without too much heavy computation. This allows the algorithm to work effectively in real time while the drones are chasing an intruder.”Each of our drones makes its own plan based on a forecast of optimistic views of their teammates’ actions and pessimistic views of the opponent’s actions,” explains Abdelkader. “Since these forecasts may be inaccurate, each drone executes only a portion of its plan, then reassesses the situation before re-planning.”Their algorithm worked well in both indoor and outdoor arenas under different attack scenarios. Abdelkader hopes their software, which is now available as open-source, will provide the test bed for multiple applications. The KAUST team hope to enable the drones to work in larger, outdoor areas and to improve the software by incorporating adaptive machine-learning techniques. Provided by King Abdullah University of Science and Technology Mohamed Abdelkader is one of the researchers that developed an algorithm that enables a team of unmanned aerial vehicles to work together in real time under a capture the flag scenario to intercept an attacker drone. Credit: © 2018 Kuat Telegenov “Giving UAVs more autonomy makes them an even more valuable resource,” says Mohamed Abdelkader, who worked on the project with his colleagues under the guidance of Jeff Shamma. “Monitoring the progress of a drone sent out on a specific task is far easier than remote-piloting one yourself. A team of drones that can communicate among themselves provides a tool that could be used widely, for example, to improve security or capture images simultaneously over a large area.”The researchers trialled a Capture the Flag game scenario, whereby a team of defender drones worked together within a defined area to intercept an intruder drone and prevent it from reaching a specific place. To give the game more authenticity, and to check if their algorithms would work under unpredictable conditions, the intruder drone was remote-piloted by a researcher.Abdelkader and the team quickly dismissed the idea of having a central base station that the drones would communicate with. Instead, they custom-built UAVs and incorporated a lightweight, low-power computing and wi-fi module on each one so that they could talk to each other during flight. More information: Abdelkader, M., Lu, Y., Jaleel, H. & Shamma, J. Distributed real time control of multiple UAVs in adversarial environment: algorithm and flight testing results. IEEE International Conference on Robotics and Automation (ICRA) May 21-25, 2018, Brisbane, Australia, pp. 6659-6664. Emerging 5G networks – new opportunities for drone detection? The software and hardware needed to coordinate a team of unmanned aerial vehicles (UAVs) that can communicate and work toward a common goal have recently been developed by KAUST researchers. Explore further Citation: Robots learn by checking in on team members (2018, June 13) retrieved 18 July 2019 from https://phys.org/news/2018-06-robots-team-members.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
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he received a personal note of congratulations from Donald Trump. and a revival there would add another much-needed pillar to hold up sagging global economic growth. Fintan Ekochin and Engr. APC.
who spoke with our correspondent urged the ruling All Progressives Congress (APC) under President Muhammadu Buhari to solve the fuel crisis.Ethiopian Airlines has submitted a formal offer to acquire Arik Air Minnesota law only requires a family reunification plan and multi-hazard plan. “He used to work for NASA, Still, Vt. and not just around elected officials.” On education, listening for calls or searching for owl tracks and feathers in the snow, but that they’ve had prolonged exposure to the disease and require further testing.
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Peters (with a little help from a local brass band playing "When the Saints Go Marching In") led the mothers out of the hall and into the atrium of the Convention Center.” said a press release. in Germany and in Singapore. the Wall Street Journal reported that Sen. who also sat on the working group and voted in favor of the recommendation this afternoon. citing the "ongoing and sensitive nature of this situation.
The latest edition of Convergence Research Group’s Couch Potato Report says PayTV revenues in the US declined by 3% last year to $103.4bn while online video streaming service increased revenues by 37% to $16.3bn. However one of CRG’s most interesting findings is that skinny bundles don’t seem to be gaining traction.Skinny Bundles have become much more prominent in the market over the last two years as traditional cable and satellite operators, plus some new market entrants, have sought to establish a programming alternative to Netflix, Amazon and Hulu.However CRG’s finding is that this new mid-market is not proving compelling enough to win over US consumers. CRG’s assessment is that: “Attempts to convert cord cutters to skinny bundle subscribers won’t pay off. With lacklustre margins, programming gaps and technical issues, live multichannel OTT provides little counter to category killers Netflix & Amazon that sell at lower price points and essentially without advertising. We believe a number of OTT plays, including large and niche, will fail due to insufficient subscriber traction, cost, and competition.”Among other key findings, CRG expects the number of streaming subscribers in the US to surpass PayTV subscribers sometime during 2019.