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International Conference on Models and Technologies for Intelligent Transportation systems (MT-ITS)

作者： Tamás Bécsi Szilárd Aradi Peter Gáspár Department of Control for Transportation and Vehicle Systems Budapest University of Technology and Economics Budapest Hungary Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences Budapest Hungary

The Connected Revolution has reached the automotive industry and the Internet penetrates into the modern vehicles. Formerly acquiring data from a vehicle was the tool of Fleet Management systems handling commercial vehicles. In the recent years connectivity began to appear in the passenger vehicles also. The first features were infotainment and navigation, having low security needs remaining far from the vehicular networks. Then telematics and remote control, such as keyless entry appeared and created a new security threat in the vehicle. The paper shows how the connected feature changes the vehicle and also presents vulnerabilities of each element to show the importance of cautious system security design.

关键词： Vehicles Security Logic gates Mobile handsets Mobile communication Wireless communication Internet

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Hamiltonian Feedback Design for Mass Action Law Chemical Reaction Networks

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IFAC-PapersOnLine 2015年第13期48卷 158-163页

作者： György Lipták Gábor Szederkényi Katalin M. Hangos Process Control Research Group Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences P.O. Box 63 H-1518 Budapest Hungary Faculty of Information Technology Peter Pazmany Catholic University Budapest Hungary

A special polynomial state feedback structure is proposed for open chemical reaction networks obeying the mass action law (MAL-CRNs) that stabilizes them for any of their admissible positive set of parameters. The proposed feedback makes the closed-loop system a reversible CRN that enables a generalized Hamiltonian description assuming that their number of reversible reactions is less or equal that the number of species. The design is based on solving a mixed integer linear optimization problem (MILP). A simple example is used to illustrate the basic concepts and the design method.

关键词： Process control Hamiltonian control Modelling Chemical Reaction Networks

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Fault tolerant LPV control of the GTM UAV with dynamic control allocation

Fault tolerant LPV control of the GTM UAV with dynamic contr...

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AIAA Guidance, Navigation, and control Conference 2014 - SciTech Forum and Exposition 2014

作者： Vanek, Bálint Péni, Tamás Szabó, Zoltán Bokor, József Computer and Automation Research Institute Hungarian Academy of Sciences Systems and Control Laboratory Budapest Hungary

ISBN: (数字)9781624103179

ISBN: (纸本)9781600869624

The aim of the paper is to present a dynamic control allocation architecture for the design and development of reconfigurable and fault-tolerant control systems in aerial vehicles. The baseline control system is designed for the nominal dynamics of the aircraft, while faults and actuator saturation limits are handled by the dynamic control allocation scheme. Coordination of these components is provided by a supervisor which re-allocates control authority based on health information, flight envelope limits and cross coupling between lateral and longitudinal motion. The monitoring components and FDI filters provide the supervisor with information about different fault operations, based on that it is able to make decisions about necessary interventions into the vehicle motions and guarantee fault-tolerant operation of the aircraft. The design of the proposed reconfigurable control algorithm is based on Linear Parameter-varying (LPV) control methods that uses a parameter dependent dynamic control allocation scheme. The design is demonstrated on the lateral axis motion of the NASA AirSTAR Flight Test Vehicle simulation model.

关键词： Supervisory personnel

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Worst-case performance analysis in l1-norm for an automated heavy vehicle platoon 9

Worst-case performance analysis in l1-norm for an automated ...

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9th International Conference on Informatics in control automation and Robotics, ICINCO 2012

作者： Rödönyi, Gábor Gáspár, Péter Bokor, József Palkovics, László Systems and Control Laboratory Computer and Automation Research Institute of Hungarian Academy of Sciences Budapest Hungary Knorr-Bremse Brake-systems Gmbh Budapest Hungary

ISBN: (纸本)9783319034997

Based on model set identification and unfalsification, robust performance measured in peak-to-peak gain is analyzed for heterogeneous platoons, inter-vehicle communication delays and actuator uncertainties. The goal is to demonstrate that safe platooning with acceptable performance can be achieved by utilizing the services already available on every commercial heavy truck with automated gearbox. Experimental verification of a three vehicle platoon is also presented. © Springer International Publishing Switzerland 2014.

关键词： Commercial vehicles

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Differential spatial modulation in V2X

Differential spatial modulation in V2X

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European Conference on Antennas and Propagation, EuCAP

作者： Meng Zhang Xiang Cheng Liu-Qing Yang School of Electronics Engineering and Computer Science Peking University Beijing China National Mobile Communications Research Laboratory Southeast University Nanjing China State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing China Qingdao Academy of Intelligent Industries Qingdao Shandong Province China

The rapid development of vehicle-to-vehicle and vehicle-to-infrastructure (V2X) communications calls for highly spectral efficient communication techniques under time-selective channels. Spatial modulation (SM) facilitates flexible trade-off between spectral and energy efficiency. In this paper, we propose a novel modulation technique based on SM for V2X, which discards the requirement of channel state information (CSI) at the receiver and exhibits enhanced robustness against time-selective fading and Doppler effects. Our proposed scheme tailors differential modulation to SM and is named differential spatial modulation (DSM). Monte Carlo simulations are carried out to demonstrate the advantage of the new scheme in terms of bit error rate (BER) performance for both point-to-point and dual-hop amplify-and-forward (AF) relaying systems in V2X channels.

关键词： Modulation Bit error rate Transmitting antennas Relays Vehicles MIMO Receiving antennas

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The Chinese ‘‘HumanFlesh’’ Web:the first decade and beyond

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Chinese Science Bulletin 2014年第26期59卷 3352-3361页

作者： Fei-Yue Wang Daniel Zeng Qingpeng Zhang James A. Hendler Jianping Cao The State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Department of Management Information Systems The University of Arizona Tucson Department of Systems Engineering and Engineering Management City University of Hong Kong Tetherless World Constellation Department of Computer Science Rensselaer Polytechnic Institute Troy The Research Center for Computational Experiments and Parallel Systems National University of Defense Technology

Human flesh search(HFS), a Web-enabled crowdsourcing phenomenon, originated in China a decade ago. In this article, we present the first comprehensive empirical analysis of HFS, focusing on the scope of HFS activities, the patterns of HFS crowd collaboration process, and the characteristics of HFS participant networks. A survey of HFS participants was conducted to provide an in-depth understanding of the HFS community and various factors that motivate these participants to contribute. This article also advocates a new stream of Web science and social computing research that will be important in predicting the future growth and use of the World Wide Web.

关键词：中国人网址肉 Web功能实证分析参与者共同体万维网

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Distributed parameter modeling of single-mast stacker crane structures

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Periodica Polytechnica Transportation Engineering 2014年第1期42卷 1-9页

作者： Hajdu, Sándor Gáspár, Péter Department of Mechanical Engineering University of Debrecen Ótemeto u. 2-4. H-4028 Debrecen Hungary Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13-17 H-1111 Budapest Hungary

This paper presents distributed parameter dynamical modeling capabilities of single-mast stacker crane structures. In the frame structure of stacker cranes due to external excitation or inertial forces undesirable structural vibrations may arise. These vibrations reduce the stability and positioning accuracy of stacker crane and causes increasing cycle time of storage/ retrieval operation. Thus it is necessary to investigate of these vibrations. In this paper the dynamical behavior of single-mast stacker cranes is approximated by means of distributed parameter models. The first model is a cantilever beam model with uniform material and cross-sectional properties. This model is used to demonstrate fundamental properties of Euler-Bernoulli beam models. The second model is cantilever beam model with variable cross-sectional properties and lumped masses. The eigenfrequencies and mode shapes of this mast-model are determined by means transfer matrix method. In the third model the whole structure of single-mast stacker crane is modeled. Beside the eigenfrequencies and mode shapes of this model the Bodediagrams of frequency response function is also calculated.

关键词： Cantilever beams

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Design of an educational emulation framework for mechatronics control unit development

Design of an educational emulation framework for mechatronic...

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IEEE/ASME International Conference on Mechtronic and Embedded systems and Applications, MESA

作者： Tamás Bécsi Szilárd Aradi Péter Gáspár Department of Control for Transportation and Vehicle Systems Budapest University of Technology and Economics Budapest Hungary Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences Budapest Hungary

Teaching mechatronics is a great challenge since the subject is a multidisciplinary area of electrical, mechanical and IT knowledge. Students must deepen their knowledge in these slightly related fields of engineering. Tasks and solving problems in mechatronics require cognitive and operational knowledge and practical experience about systems design and analysis. Since mechatronics engineering is a fast-developing and practice-oriented field placing more emphasis practical and project-based education at universities is strongly encouraged by the industry. The paper presents an educational framework designed for students with a specialization in vehicle mechatronics. The aim of the system is to provide the emulation of a real vehicle module, which must be operated by appropriately designed controller unit.

关键词： Mechatronics Vehicles Emulation Educational institutions Sensors Software

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Vision only Sense and Avoid: a Probabilistic Approach

Vision only Sense and Avoid: a Probabilistic Approach

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American control Conference

作者： Balint Vanek Tamas Peni Peter Bauer Jozsef Bokor Systems and Control Laboratory Computer Automation Research Institute Hungarian Academy of Sciences Kende u. 13.-17. H-1111 Budapest

ISBN: (纸本)9781479932757

The real world feasibility of a self-contained, purely vision based sense and avoid system, required for small unmanned aerial vehicles (UAV) is investigated in the present paper. No information is exchanged between aircrafts, only passive 2-D vision information is available to estimate the encountering traffic. The system is composed of three distinct components: intruder state estimation using Unscented Kalman filter (UKF);collision risk estimation based on probabilistic algorithms;and trajectory re-generation using motion primitives to minimize the expected probability of collision. Since the relative system dynamics are weakly observable special emphasis is made on persistent excitation. The system is tested on a high fidelity Hardware-in-the-Loop (HIL) simulation platform, where flight control algorithms, scene rendering, image processing and estimation algorithms are implemented individually over a network of computers. A high number of representative encounter scenarios are presented to provide performance measures including detection time and miss distance of distinctive approaches to assess the applicability of the proposed method.

关键词： Aircraft Mathematical model Estimation Vectors Atmospheric modeling Trajectory Equations

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Mini actuators for safety critical unmanned aerial vehicles avionics

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Periodica Polytechnica Transportation Engineering 2013年第1期41卷 25-31页

作者： Lukátsi, Márk Réti, István Vanek, Bálint Bakos, Ádám Bokor, József Gozse, István Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13-17 H-1111 Budapest Hungary

The present article details the development steps and experimental results obtained during the development of smart actuators used on mini unmanned aerial vehicles (UAV). The research effort is driven by the need of developing onboard health monitoring and diagnostics units for small size UAVs to improve their reliability. In the present all small UAVs use single string avionics systems with no built in redundancy, moreover the servo actuators onboard the airplane are often commercial off the shelf (COTS) hobby components with no reliability figures, limited performance guarantees and one directional communication using analog PWM signals. The development of new servo generation focused on solving the above issues. The proposed servo actuators use the existing mechanical gearboxes and housing of the COTS components, but their power electronics, motor control hardware and software components, sensors are custom designed to fit the needs of a higher demand. The actuators with their controlling microprocessors are capable of establishing two way communication via CAN and FlexRay protocol, suitable for safety critical applications, the actuators. The development challenges and experimental results in a hardware-in-theloop (HIL) simulator are discussed in the paper.

关键词： Electromechanical actuators

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