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2008 IEEE Radar Conference

作者： Townsend, James Saville, Michael A. Hong, Seng Martin, Richard K. Simpson, Chad Mayhew, Oscar USAF Inst Technol Wright Patterson AFB OH 45433 USA AF Res Lab Sensors Directorate Wright Patterson AFB OH 45433 USA Mac Auley Brown Inc Wright Patterson AFB OH 45433 USA

ISBN: (纸本)9781424415380

Recent work on electronic countermeasure (ECM) technique generation employed genetic algorithm optimization methods to define simple range-gate pull-off waveforms against a generic range-tracking radar simulation. This automated approach has potential to greatly reduce technique development time which is traditionally prolonged by manual experimentation. However, it also inspires a more generalized approach to optimization with hardware-in-the-loop configurations. This work investigates and develops the underlying mathematical and empirical framework for using optimization algorithms for hardware-in-the-loop simulation and testing. Unlike other reported radar/ECM optimization simulations, this approach uses a cost function library and scoring definition to separate simulation from the optimization algorithm, and is easily adapted to hardware-in-the-loop testing. In addition, effects from electromagnetic scattering and radar receiver processing may be measured, removing the need for completely defined objective functions. Finally, this approach nicely generalizes to multiple simultaneous cost function optimization. The method is demonstrated using the well-known range-gate pull-off technique, but is adaptable to other ECM techniques. Future efforts will investigate specific optimization algorithms for the multi-objective problem.

关键词： Optimization hardware-in-the-loop simulation electronic countermeasures radar

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An educational open-source tool for the design of IEC 61131-3 compliant automation software

An educational open-source tool for the design of IEC 61131-...

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International Symposium on Power Electronics, Electrical Drives, Automation and Motion

作者： De Tommasi, G. Pironti, A. Univ Naples Federico 2 Dipartimento Informat & Sistemat I-80125 Naples Italy

ISBN: (纸本)9781424416639

UniSim is a graphic tool that can he used to develop and validate portable automation software, which fully complies with the IEC 61131-3 standard. UniSim is based on a graphical editor and on a simulation engine which allows to perforin off-line validation of the automation software. Its simulation engine can also be interfaced with off-the-shelf I/O boards, in order to fast prototype automation systems by using a Personal Computer. hardware-in-the-loop validation can be performed interfacing the prototype with the real plant or with an emulator. Furthermore, UniSim adopts the new XML Formats for IEC 61131-3, which provides an open interface for data exchange among different systems. Thanks to this choice the code developed with UniSim can be easily ported among different commercial platforms, increasing software reusability. Although the current release of UniSim is a work in progress version, it is already available at [1] and it can be effectively used to develop small and medium automation size projects.

关键词： programmable logic controllers hardware-in-the-loop simulation software tools code reusability

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Experimental Studies of a Fractional Order Universal Adaptive Stabilizer

Experimental Studies of a Fractional Order Universal Adaptiv...

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IEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications

作者： Mukhopadhyay, Shayok Li, Yan Chen, YangQuan Utah State Univ Dept Elect & Comp Engn Logan UT 84341 USA

ISBN: (纸本)9781424423675

This work performs experimental verification of the asymptotic stability of two different types of fractional scalar systems by using universal adaptive stabilization as in [1]. The types of systems verified experimentally are: (I) Fractional dynamics with integer order control strategy (II) Fractional dynamics with fractional order control strategy. The Mittag-Leffler function E-alpha(-lambda t(alpha)), for all alpha is an element of (2, 3] and lambda > 0 is used as a Nussbaum function as per [1]. Extensive hardware in the loop simulation of the mathematically developed results in [1] have been included in lite paper. The results of the experiment serve not only to improve the understanding of fractional order universal adaptive stabilization but also proves that the methodology works well on real world systems.

关键词： hardware-in-the-loop simulation fractional order Universal control strategy Self tuning asymptotic stability region

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Validation methodology of hardware simulators for spacecraft system testing

Validation methodology of hardware simulators for spacecraft...

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2008 IEEE Aerospace Conference

作者： Montanez, Leticia Morcos, James Jet Propulsion Laboratory California Institute of Technology Pasadena CA 91109 4800 Oak Grove Drive United States

ISBN: (纸本)9781424414871

The Multi-Mission System Architecture Platform (MSAP) test bed at the Jet Propulsion Laboratory is an integral part of the MSAP Project and provides a hardware-in-the-loop simulation of the developed in-house product line. The goal of the MSAP Project itself is to develop and demonstrate reusable and evolvable core architecture for JPL in-house missions. The MSAP project develops the processes, products, and documentation for the software, hardware, and test environment for the implementation of the architecture. With minimal modifications this architecture will then be easily adaptable to future missions. The overall success of the MSAP Project has been largely due to its hardware-in-die-loop simulation and its rigorous test program. Due to the flight hardware costs, it is desirable to model in software the mission specific hardware that comprises a functional spacecraft. Eventually a library of flight hardware simulations will be accumulated making it possible to build up future mission test beds or to morph the test environment to mimic existing missions for anomaly investigation and problem resolution. This paper(1,2) Will focus on the methodology used to certify the hardware simulations that compose the MSAP test bed.

关键词： hardware-in-the-loop simulation

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Hybrid models for hardware-in-the-loop simulation of hydraulic systems - Part 1: theory

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PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF SYSTEMS AND CONTROL ENGINEERING 2004年第I6期218卷 465-474页

作者： Ferreira, JA Almeida, FG Quintas, MR de Oliveira, JPE Univ Aveiro Dept Mech Engn P-3810 Aveiro Portugal Univ Porto Polo FEUP IDMEC P-4100 Oporto Portugal Univ Aveiro IEETA Dept Elect Engn P-3800 Aveiro Portugal

Physical modelling of hydraulic systems results in systems of differential and algebraic equations (DAEs) that are normally stiff. This is because they often include multiple temporal scales and present complex and non-linear behaviour. The simulation of these stiff DAEs in real time demands small time steps, in order to achieve algorithm stability, because explicit fixed step solvers are usually applied. Modelling some fast dynamics as instantaneous changes in order to reduce the model's stiffness has been an area of research in the last few years. The description of the dynamic behaviour as piecewise continuous modes, interspersed with discrete transitions, together with the reduction in the model complexity, facilitates the use of fixed time step integration methods and thus allows real-time simulation. The main goal of this work was to obtain not too complex models in order to allow the models to be used in hardware-in-the-loop experiments. This paper proposes the use of the statecharts formalism to describe hybrid behaviour in hydraulic systems and presents semiempirical models of a valve controlled hydraulic cylinder intended to test real controller performance on a hardware-in-the-loop setup. These semiempirical models require less computing power, and it is easier to adjust the model parameters.

关键词： fluid power modelling real-time simulation hardware-in-the-loop simulation

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Application of NetLinx Network in Marine Power Station Monitoring System

Application of NetLinx Network in Marine Power Station Monit...

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27th Chinese Control Conference

作者： Sun Wenfu Teng Wanqing Cao Yunpeng Wang Zhiqiu Harbin Engn Univ Coll Power & Energy Engn Harbin 150001 Peoples R China

ISBN: (纸本)9787900719706

Adopting the NetLinx network, this paper designs a marine power station monitoring system. First of all, the hardware and its structure of the monitoring system are designed, and the data traffic process of the hardware system is analyzed. Then, the configuration structure and function of the monitoring software are also analyzed, and according to the controlling function and operating habit of an automation power station, the human machine interface (HMI), which is friendly and visualized, is designed. By constructing mathematical models and simulation models of the diesel generator set, this paper completes a hardware-in-the-loop simulation (HILS) experiment, which has used the NetLinx network controlling system. The results of simulation experiment indicate that the field signals can transmit between controller and PC accurately, the hardware system designed has a high reliability and a good environment adaptability, and that, the operator can also master the running states of marine power station by the monitoring software of PC.

关键词： NetLinx network Marine power station Monitoring system hardware-in-the-loop simulation Human machine interface

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HIL-Based Virtual Disturbance and Parameter Variations of Controlled Electric Drive

HIL-Based Virtual Disturbance and Parameter Variations of Co...

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IEEE International Symposium on Industrial Electronics

作者： Kuperman, Alon Sami Shamoon Coll Engn Beer Sheva Israel

ISBN: (纸本)9781424416653

The paper presents a method to obtain effects similar to those obtained by real mechanical loading, actuator and measurement noises and parameter variation but without any mechanical parts supplementary to the electric motor of the studied electric drive and without actually changing any electrical or mechanical parameter of the motor. The motor drive itself produces the load torque, noises and the parameter variations using a digital signal processing software. Therefore, the electric drive is virtually perturbed, while its behavior is similar to that of the really perturbed drive. The present method, which can be related to a class of hardware-in-the-loop simulations, could be used to test the implementation of advanced control algorithms or at didactic purposes using motion control kits found on the market.

关键词： parameter variation electric drives mechanical parameter Noise measurement Computer algorithms Electric motors hardware-in-the-loop simulation

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hardware-In-the-loop Test for Fault Diagnosis System of Tilt Rotor UAV

Hardware-In-the-Loop Test for Fault Diagnosis System of Tilt...

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International Conference on Control, Automation and Systems

作者： Yoo, Changsun Kang, Youngshin Park, Bumjin KARI Smart UAV Dev Ctr Taejon South Korea

ISBN: (纸本)9788995003893

The tilt rotor UAV developed in KARI has fault diagnosis functions to enhance system reliability, which were implemented using the operational flight program (OFP) of the flight control computer (FCC). Basically, they conduct built-in-test (BIT) between the FCC and onboard systems such as the communication system, navigation system, and actuators, etc. If a system has no BIT function, fault diagnosis can be performed by checking if the corresponding physical data exit within the available range. In order to test each function, a test device for fault diagnosis was developed and used for hardware-in-the-loop simulation (HILS). The test apparatus consists of the operation control computer (OCC) and the verification computer (VC), which can be interfaced with the simulation computer via Ethernet. The OCC creates faults into the VC and displays the result of fault diagnosis. The VC has simulation models for each onboard system and provides output information to FCC. The FCC performs fault diagnosis and returns the result of fault diagnosis. This paper describes the fault diagnosis functions of the tilt rotor UAV, the test environment used to evaluate them and the test result in hardware-in-the-loop simulation environment.

关键词： Tilt rotor UAV flight control computer fault diagnosis Built-in-test hardware-in-the-loop simulation

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General time synchronisation method for PLC programs aiming at virtual verification and development

General time synchronisation method for PLC programs aiming ...

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17th World Congress, International Federation of Automatic Control, IFAC

作者： Carlsson, Henrik Danielsson, Fredrik Lennartson, Bengt

ISBN: (纸本)9783902661005

The latest state-of-the-art Computer Aided Production Engineering (CAPE) simulation technology offers OPC integration for PLC verification. A critical drawback with this technology has been identified and described within this paper. A new time synchronisation method and a simulation architecture are therefore presented and proposed. The time synchronisation method together with the architecture can be used when verifying and developing real-time dependent control logic for industrial control system, e.g. PLC with CAPE tools. The method described in this paper is general and should work on any PLCs that are compatible with the IEC 61131-3 standard. A test case was also carried out, showing that by disregarding time synchronisation it is impossible to verify real-time dependent PLC functions together with CAPE tools in a reliable way. However, the test case also shows that by applying the proposed time synchronisation method together with the described simulation architecture a successful industrial verification method is achieved. Copyright © 2007 International Federation of Automatic Control All Rights Reserved.

关键词： hardware-in-the-loop simulation

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A new hardware-in-the-loop platform for the evaluation of adaptive lighting systems

A new hardware-in-the-loop platform for the evaluation of ad...

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17th World Congress, International Federation of Automatic Control, IFAC

作者： Opfermann, Alexander Bertram, Torsten Baum, Dietmar Karas, Peter

ISBN: (纸本)9783902661005

In this paper a new hardware-in-the-loop platform for the evaluation of adaptive lighting systems is presented. A standard industrial robot is actuated with input data from a vehicle dynamics simulation in order to position a pair of active frontlighting headlamps mounted at the tool center point. With this setup test drives can be simulated repeatedly under well defined environmental conditions at any time. A visual measurement system is presented that tracks the dynamic light distribution and thus provides data that can be related to subjective impressions by means of statistical analysis tools. Copyright © 2007 International Federation of Automatic Control All Rights Reserved.

关键词： hardware-in-the-loop simulation

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