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Reliability, fault tolerance and other critical components for survivability in information warfare 1

14th International Joint Conference on e-Business and Telecommunications, ICETE 2017

作者： Stavroulakis, Peter Kolisnyk, Maryna Kharchenko, Vyacheslav Doukas, Nikolaos Markovskyi, Oleksandr P. Bardis, Nikolaos G. Chania Greece Department of Computer Systems and Networks National Aerospace University "KhAI" Kharkiv Ukraine Hellenic Army Academy Varis – Koropiou Avenue Vari 116 72 Greece Department of Computer Engineering National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute Kiev Ukraine Department of Automation and Control in Technical Systems National Technical University "KPI" Kharkiv Ukraine

ISBN: (数字)9783030110390

ISBN: (纸本)9783030110383

The information revolution has caused many aspects of human activity to critically depend on a wide variety of physically existing or virtual technological achievements such as electronic devices, computer systems, algorithms, cloud resources, artificial intelligence hardware and software entities etc. Many of these systems are used in highly sensitive contexts, such as military applications. This implies the existence of an increasing number of unintentional disturbances or malicious attacks. Successful operation requires qualities such as robustness, fault tolerance, reliability, availability and security. All these may be summarized by the title of survivability. Survivability of critical systems working for sensitive applications involves the ability to provide uninterrupted operation under severe disturbances, gracefully degrade when limiting conditions are reached and maintain the ability to resume normal service once the disturbances have been removed. Survivability is an important, even - though non – functional, lifecycle property of many engineering systems. Further desirable elements of survivability include the ability of systems to recognize and resist attacks or accidents, adapt in order to avoid them and modify their behavior in order to diminish the effects of similar future occurrences. This chapter presents a quantitative approach to assessing survivability and an account of survivability in military systems. A scheme for survivability via replica diversity in the implementation of the AES algorithm is then presented. Following that, an algorithm for adaptive attack aversion in user authentication systems is presented that is based on Boolean transformations. An approach for increased survivability in Internet of Things (IoT) systems is then presented. Finally, an algorithm for secure data storage in cloud resources is presented that allows attack detection and avoidance. © Springer Nature Switzerland AG 2019.

关键词： Fault tolerance

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Research and development of a stereo encoder of a FM-transmitter based on FPGA 1st

Research and development of a stereo encoder of a FM-transmi...

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1st International Conference on Computer Science, engineering and Education Applications, ICCSEEA2018

作者： Artem, Volokyta Volodymyr, Shymkovych Ivan, Volokyta Vladyslav, Vasyliev Department of Computer Engineering National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" 37 Prosp. Peremohy Kyiv Ukraine Department of Automation and Control in Technical Systems National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" 37 Prosp. Peremohy Kyiv Ukraine Royal Caribbean International FL United States

ISBN: (纸本)9783319910079

This paper describes the research and development of the digital stereo encoder FM transmitter including its implementation on Field Programmable Gate Array (FPGA). The development of structural schemes of the digital part of the FM transmitter exciter, the stereo encoder and the digital synthesizer of the sine wave on the FPGA is also described. Paper includes a description of development of a digital synthesizer of a sinusoidal signal on a FPGA, which uses a tabular method to generate the sinusoidal wave, fourth part of its period is written to memory and the rest of the period is calculated using the first part. To generate five sinusoids of different frequencies in a stereo encoder, only one table in memory used. The simulation of the stereocoder on the FPGA in carried out in the specialized Computer-Aided Design (CAD). The graphs of the left and right balance signals, the sum and difference of these signals, the signal of difference of the two sine waves which have their amplitude modulated and with a carrier signal of 19 kHz and the complex stereo signal are constructed. After receiving a complex stereo signal its frequency modulation is carried out with a carrier signal of 100 MHz, the FPGA chip outputs the frequency code of modulated signal. © Springer International Publishing AG, part of Springer Nature 2019.

关键词： Digital signal processing

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An Energy-Efficient Context Aware Solution for Environmental Assessment ⁎

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IFAC-PapersOnLine 2020年第5期53卷 756-761页

作者： Isabela Birs Cristina Muresan Ioan Nascu Clara Ionescu Ghent University Faculty of Engineering and Architecture Research Group of Dynamical Systems and Control Tech Lane Science Park 125 B-9052 Ghent Belgium EEDT Decision & Control Flanders Make Consortium Tech Lane Science Park 131 B-9052 Ghent Belgium Department of Automation Technical University of Cluj-Napoca Memorandumului 28 Cluj-Napoca Romania

The paper focuses on presenting the advantages of context aware cyber-physical systems through an experimental platform capable of assessing its surroundings and self-performing decisions. The context aware paradigm is present in the control law implementation with various advantages such as energy efficiency as well as in the environmental measurements that trigger the robot to perform context-relevant decisions. The platform provides high versatility and the results presented throughout the study can be adapted to a manifold of multidisciplinary fields.

关键词： Submerged Vehicle Context Awareness Environmental Assessment Event-based control

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Design and control of a tennis ball collector robot 6

Design and control of a tennis ball collector robot

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6th International Conference on control engineering and Information Technology, CEIT 2018

作者： Cabuk, Vehbi Umur Kubilay Savkan, Ahmet Kahraman, Ramazan Karaduman, Ferdi Kiril, Okan Sezer, Volkan Control and Automation Engineering Department Istanbul Technical University Istanbul Turkey Mechatronic Engineering Department Istanbul Technical University Istanbul Turkey

ISBN: (纸本)9781538676417

In this study, an autonomous robot that collects scattered tennis balls in a tennis court is designed and developed. The robot perceives the balls by using a camera placed on it and starts to collect the balls starting from the nearest ones. Mechanical design is achieved with considerations given to increase ease of ball capturing and to prevent captured balls falling out. Image processing is implemented using OpenCV libraries on Raspberry Pi 3. Using edge detection algorithm and appropriate color filter, tennis balls are detected and sorted by their distance to the robot. After the generation of desired robot angle, it is converted to appropriate motor velocity values and transmitted to the motor controller unit. In order to achieve the operation, four DC motors are used. Two of them are used for platform movement, one of them is used to control camera angle for ball scanning operation, and the last one is utilized for ball capturing mechanism. On motor controller board with ARM MCU, position and velocity control of two DC motors with rotary encoders are achieved by discrete PI controllers. System design is validated through real world experimental tests. © 2018 IEEE.

关键词： Robots

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Further Results on Dominant Pole Placement via Stability Mapping Approach

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IFAC-PapersOnLine 2018年第4期51卷 918-923页

作者： Dincel, Emre Mutlu, lhan Schrödel, Frank Söylemez, Mehmet Turan Control and Automation Engineering Department Istanbul Technical University Istanbul34469 Turkey Development Center Chemnitz/Stollberg IAV GmbH Stollberg09366 Germany

Dominant roots of the closed loop characteristic equation play a crucial role in terms of the performance of Linear Time Invariant (LTI) systems. Within the scope of this study, a dominant pole placement approach which has two main phases is proposed for PI/PID type controllers. In the first phase, characteristic equation is partitioned into its dominant and non-dominant polynomial pairs and dominant poles are placed to predetermined locations. In the second phase, it is required to determine how far the non-dominant poles can be placed. In the current study, this requirement is transformed into a stability problem and Lyapunov Equation-based stability mapping approach is used. This combined approach creates a more flexible design environment compared to the currently existing approaches in literature. In order to demonstrate this flexibility, two benchmark case studies are included with different definitions of dominant pole placement problem. © 2018

关键词： Three term control systems Lyapunov functions Mapping Poles Poles and zeros Benchmark case studies Characteristic equation Dominant pole placements Flexible designs Linear time invariant system Lyapunov equation Performance limitations PID controllers

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Extensions of the open-source framework Aerostack 3.0 for the development of more interactive flights between UAVs

Extensions of the open-source framework Aerostack 3.0 for th...

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International Conference on Unmanned Aircraft Systems (ICUAS)

作者： Wojciech Giernacki Jacek Cieślak Martin Molina Pascual Campoy Institute of Robotics and Machine Intelligence Faculty of Control Robotics and Electrical Engineering Poznan University of Technology Poznań Poland Department of Artificial Intelligence Technical University of Madrid (UPM) Madrid Spain Computer Vision and Aerial Robotics (CVAR) Centre for Automation and Robotics Technical University of Madrid (UPM) Madrid Spain

ISBN: (数字)9781728142784

ISBN: (纸本)9781728142791

The basis for properly verified R&D works is to provide reliable prototyping tools at three most important stages: computer simulation, laboratory tests and real-world experiments. In the laboratory-limited conditions, particular importance is attributed to the first two stages, especially in the context of the safety development of autonomous flights of unmanned aerial vehicle (UAV) groups in various missions. The open-source framework Aerostack support those needs and its effectiveness has been proven in the International Micro Air Vehicle Indoor Competitions (IMAV 2013, 2016, 2017) and Mohammed Bin Zayed International Robotics Challenge (MBZIRC 2020). In the paper, the exemplary functionalities for the new version of Aerostack Version 3.0 Distribution Sirocco (Aerial robotics framework for the industry), extended additionally with a library of new behaviors, are presented. The mission of UAVs can be developed fast and effectively in order to conduct test flights with real drones in lab, before one will decide to fly autonomously outdoor. The representative results obtained for low-cost *** 2.0 UAV models in two missions, are presented. The first mission is autonomous patrolling the area by a pair of UAVs, the second - intercepting the intruder in guarded area by the guard UAV.

关键词： Robots Trajectory Drones Libraries Software Computer architecture

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LPV active fault-tolerant control strategy of large civil aircraft under elevator failures

LPV active fault-tolerant control strategy of large civil ai...

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CSAA/IET International Conference on Aircraft Utility Systems (AUS 2020)

作者： Z. Zhou X. Wang S. Wang Y. Zhang A. I. Gavrilov R. Nagamune School of Automation Science and Electrical Engineering Beihang University Beijing 100191 China Bauman Moscow State Technical University Department of Automatic Control Systems Moscow 105005 Russia the University of British Columbia Department of Mechanical Engineering Vancouver BC V6T1Z4 Canada

This paper proposes a scheme to achieve fault tolerant control to elevator failure of large aircraft. Meanwhile, the model of aircraft is expressed by linear-parameter-varying (LPV), and an LPV controller is designed. The approaches of H-infinity and pole assignment using linear matrix inequalities (LMIs) tools are used to design the states feedback controller, keeping the stability, rapidity and robustness. Moreover, an additional scheduling parameter of effectiveness of the elevator is introduced to the model and controller, keeping the desired performance when elevator failure happens by the nominal controller, avoiding the retuning the controller. The simulation are shown to prove the method.

关键词： fault tolerant control stability linear systems scheduling nonlinear control systems linear matrix inequalities pole assignment fault tolerance robust control control system synthesis state feedback

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Design embedded control system based controller of the quasi time optimization approach for a magnetic levitation system

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IOP Conference Series: Materials Science and engineering 2021年第1期1029卷

作者： C X Nguyen T D Pham A D Lukynov P C Tran Q D Truong Department of Automation and Computing Techniques Le Quy Don Technical University Hanoi Vietnam Department of Technology Equipment and Aerospace Le Quy Don Technical University Hanoi Vietnam Department of Automation of production processes Don State Technical University Rostov-on-Don Russia Department anti-aircraft missiles Faculty of Control Engineering Le Quy Don Technical University Hanoi Vietnam

The magnetic levitation system is a typical system with many successful applications in practice. Due to the inherent instability and strong open-loop nonlinearity of the MLS, a controller is used to control the stability of the magnetic levitation system. With the rapid development of embedded systems, the intelligent digital control has begun to replace conventional analog control technology creating a new approach to the control MLS. This paper proposes a hardware module for the MLS based on a digital signal processor combined with a fast acting controller to ensure system stability even with incomplete mathematical models. The simulation and experimental results are compared with the linearized feedback control law. Finally, experiments are carried out to test the practical feasibility of the proposed control laws in the MLS embedded control system. The system, with the recommended controller, well responds to the tolerances allowing for stable system working. Both simulation and test results are included in this paper to show that the fast acting suboptimal controller has the advantage of being more durable and less complicated to perform in MLS control applications.

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A Media-Based Modulation Communication System Implementation Using Universal Software Radio Peripheral

A Media-Based Modulation Communication System Implementation...

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Telecommunications Forum (TELFOR)

作者： Okan Ertürk Kutay Bölat A. Doruk Başkan İbrahim Altunbas Department of Electronics and Communication Engineering Istanbul Techinal University Istanbul Turkey Department of Control and Automation Engineering Istanbul Technical University Istanbul Turkey

Index Modulation (IM) techniques have become a popular research topic for the next generation communication systems due to their prominent spectral efficiencies. Media-Based Modulation (MBM) which can provide high data rates using multiple RF switching components like PIN diodes and fewer transmit antennas is one of the newest members of the IM family. It may be also a candidate for the physical layer of 6G cellular communication systems. In this study, we implement an MBM communication system that utilizes a reconfigurable antenna (RA) with the help of an embedded system and universal software radio peripherals (USRP) with LabVIEW. We also design the RA which is used at the transmitter. The designed RA has been manufactured on a printed circuit board (PCB) with an antenna driver circuit and the measurements related with its operability have been taken and validated. In order to switch the PIN diodes on the RA, we use an ARM-based microprocessor which carries the information to be transmitted. After the testbed is installed, the data transfer is accomplished by our MBM scheme successfully.

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The vulnerability of cyber-physical system under stealthy attacks

arXiv

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arXiv 2020年

作者： Sui, Tianju Mo, Yilin Marelli, Damián Sun, Ximing Fu, Minyue School of Control Science and Engineering Dalian University of Technology Dalian China Department of Automation Tsinghua University Beijing China School of Automation Guangdong University of Technology Guangzhou China French Argentine International Center for Information and Systems Sciences National Scientific and Technical Research Council Argentina School of Electrical Engineering and Computer Science University of Newcastle CallaghanNSW2308 Australia School of Automation Guandong University of Technology China

In this paper, we study the impact of stealthy attacks on the Cyber-Physical System (CPS) modeled as a stochastic linear system. An attack is characterised by a malicious injection into the system through input, output or both, and it is called stealthy (resp. strictly stealthy) if it produces bounded changes (resp. no changes) in the detection residue. Correspondingly, a CPS is called vulnerable (resp. strictly vulnerable) if it can be destabilized by a stealthy attack (resp. strictly stealthy attack). We provide necessary and sufficient conditions for the vulnerability and strictly vulnerability. For the invulnerable case, we also provide a performance bound for the difference between healthy and attacked system. Numerical examples are provided to illustrate the theoretical results. Copyright © 2020, The Authors. All rights reserved.

关键词： Embedded systems

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