9 research outputs found

    A STRATEGIC SERIOUS GAME ADDRESSING SYSTEM OF SYSTEMS ENGINEERING

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    Serious Games are currently extending their capabilities to strategic Education and Training by innovative approaches and new technological solutions. In this paper, the authors propose a new Serious Game devoted to address such aspects with special focus on System of Systems Engineering (SoSE). The proposed case uses a challenging framework related to the development of an innovative System of Systems for defense and homeland security that could be used by users to acquire the fundamental concepts of SoSE. The scenario allows to investigate alternative interoperable solutions among different platforms, sensors, infrastructures and doctrines respect evolving threats in relation to an air defense solution based on airborne radars

    DESIGN OF CRUCIAL ELEMENTS FOR INDUSTRIAL PLANTS, OFFSHORE PLATFORMS AND UNDERWATER FACILITIES

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    The paper proposes some specific models to be used in design of crucial elements for Industrial Plants that previously were not easy to be addressed by simulation due their functional complexity. As examples of these kinds of elements are proposed autonomous systems for fire fighting and/or emergencies for on-shore and off shore plants as well as equipment for underwater operations. The paper proposes use of MS2G Simulation Paradigm (Modeling, interoperable Simulation and Serious Games) as solution in these specific cases to test concepts and capabilities

    Interoperable Simulation and Serious Games for creating an Open Cyber Range

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    The paper proposes an open architecture to support the creation of a synthetic environment devoted to simulate complex scenarios related to the protection of cyber-physical systems. The proposed approach is based on applying the combination of interoperable simulation and serious games to develop a framework where different models, as well as real equipment, could interoperate based on High Level Architecture standard. By this approach, it becomes possible to create a federation reproducing a scenario including multiple physical and cyber layers interacting dynamically and reproducing complex situations. The authors propose an example of specific case study conceptually developed to apply this approach

    Investigation Root Causes of Labour Turnover Problem in Seaport Logistics Sector

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    Labor turnover is a phenomenon with negative consequences in the field of seaport handling and operations. This study aims at determining the causes of labor turnover and proposing alternative solutions for companies and logistic firms that are in charge of seaport cargo handling work. The causes and relations among the factors that are effective in labor turnover problem were determined using fuzzy DEMATEL and the related alternatives were analyzed by fuzzy TOPSIS technique. The results of the study revealed that some causes of labor turnover in seaports could be summarized as “low wages”, “unguaranteed jobs”, “limited career opportunities” and “unwelcomed managers”. As alternatives to the labor turnover problem; “bonus pay”, “career opportunities” and “offering partnership” may be considered to overcome the problem. The study is based on data from expert evaluations obtained from the questionnaires. Finally, some recommendations are made to diminish the labor turnover frequency in seaport companies

    Integrated Method of Analysis and Visualization Based on HLA and Its Application to Collaborative Simulation in Shipbuilding

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    학위논문 (석사)-- 서울대학교 대학원 : 조선해양공학과, 2016. 2. 노명일.During ship construction and offshore installation, more than two cranes are required in many cases. Even using one crane, some signalmen also need to assist the crane operator. And it is noticeable that the probability of accidents is considerably high due to operators collaboration. In order to prevent potential risks and ensure safety of operation process, simulation technology is widely applied. In this study, collaborative simulation is developed which allows several workers to conduct the same operation simultaneously in visual environment and then investigate potential safety risks. The current study can be summarized into four parts. Firstly, in order to describe the crane and block as real as possible, and make it as working in the actual operation site, VR (virtual reality) technology that could improve the sense of reality and immersion is studied. Secondly, because the cranes and block in virtual environment should move like a real movement, research on physics analysis technology based on multibody system dynamic has been done. Thirdly, to control the cranes in the simulation, workers who operate the crane need a controller. Therefore, a scenario generator is developed which can convert the signals from the controllers to the input datum for VR and analysis. Finally, in order to effectively integrate the VR technology, multibody dynamic system technology and controller as well as consider of interoperability and reuse, this study proposes an integrated simulation interface based on the High Level Architecture. This study utilizes developed collaborative simulation, which can be applied in simulating block turn-over (rotating 90 or 180 degrees) operation and topside module installation. Each simulation allows four operators to operate under the same virtual environment simultaneously and during this process, some danger may occur due to operators mistakes. This study makes contributions in simulating potential outcomes caused by operators operations, and collecting detailed data for further investigation. This study can be applied in ensuring safety in complicated scenarios, training operators and many other aspects.1. Introduction 1 1.1. Background of this study 1 1.2. Four technologies for collaborative simulation 4 1.3. Related works 6 1.3.1. Summary of the realted works and this study 11 1.4. Overview of this study 12 2. Analysis based on multibody system dynamic 14 2.1. Introduction to multibody system 14 2.2. Configuration for the implementation of physics-based analysis program 16 2.2.1. Multibody system dynamics kernel 17 2.2.2. Force calculation kernel 17 2.2.3. Numerical analysis kernel 18 2.2.4. Hybrid DEVS/DTSS kernel 19 2.2.5. Scenario management kernel 19 2.2.6. Collision detection kernel 20 2.3. Procedure for solving equations of motion in physics-based analysis program 21 2.4. Modeling method in physics-based analysis program 22 3. Visualization for virtual reality 24 3.1. Introduction to virtual reality 24 3.2. Modeling method of virtual reality 26 4. Controller for interactive user input 27 4.1. Hardware parameters 27 4.1.1. Joystick 27 4.1.2. Head mounted display 28 4.2. Controller for scenario generation 29 5. Integrated simulation interface based on high level architecture 31 5.1. Necessity of HLA 31 5.2. Technical overview of HLA 34 5.2.1. Interoperability and reuse 34 5.2.2. Important concepts of HLA 35 5.2.3. HLA components 35 5.2.4. Management areas of RTI 37 5.3. Runtime infrastructure (RTI) 40 5.3.1. Process for selecting RTI 40 5.3.2. RACoN 40 5.3.3. Simulation Generator (SimGe) 40 5.3.4. Portico 41 5.4. Case study: chat federate application 43 5.4.1. Object model 44 5.4.2. The class structure 46 5.4.3. Implementation 47 5.4.4. Portico RTI initialization data 48 5.5. Framework of collaborative simulation 49 5.6. Integrated method of analysis, VR and controller 51 5.6.1. FOM design for block lifting example 51 5.6.2. Adapter design for block lifting example 52 5.6.3. Data transform procedure by using integrated simulation interface 53 6. Application examples of collaborative simulation in shipbuilding and offshore installation 54 6.1. Application to Block turn-over operation 56 6.1.1. Introduction to block turn-over operation 56 6.1.2. Collaborative simulation for block turn-over operation 58 6.1.3. Simulation components for block turn-over operation 59 6.1.4. Modeling result for analysis 60 6.1.5. Modeling result for VR 61 6.1.6. Inputs and outputs of simulation components 63 6.1.7. Data transform procedure by using integrated simulation interface 64 6.1.8. Prototype simulator based on the integrated simulation interface 69 6.1.9. Collaborative simulation results of the prototype simulator 70 6.1.10. Discussion on collaborative simulation results (wire tension) 74 6.2. Application to Topside module installation 77 6.2.1. Introduction to topside module installation 77 6.2.2. Collaborative simulation for block turn-over operation 79 6.2.3. Simulation components for block turn-over operation 81 6.2.4. Modeling result for analysis 82 6.2.5. Modeling result for VR 83 6.2.6. Inputs and outputs of simulation components 85 6.2.7. Data transform procedure by using integrated simulation interface 86 6.2.8. Collaborative simulation results of the prototype simulator 91 6.2.9. Discussion on collaborative simulation results (wire tension) 94 7. Conclusions 97 References 99 APPENDICES 101 A. Implemented services of RACoN 102 B. Prerequisites for RACoN 109 C. Portico environment configuration 110 초록 111Maste

    MODELLING VIRTUAL ENVIRONMENT FOR ADVANCED NAVAL SIMULATION

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    This thesis proposes a new virtual simulation environment designed as element of an interoperable federation of simulator to support the investigation of complex scenarios over the Extended Maritime Framework (EMF). Extended Maritime Framework is six spaces environment (Underwater, Water surface, Ground, Air, Space, and Cyberspace) where parties involved in Joint Naval Operations act. The amount of unmanned vehicles involved in the simulation arise the importance of the Communication modelling, thus the relevance of Cyberspace. The research is applied to complex cases (one applied to deep waters and one to coast and littoral protection) as examples to validate this approach; these cases involve different kind of traditional assets (e.g. satellites, helicopters, ships, submarines, underwater sensor infrastructure, etc.) interact dynamically and collaborate with new autonomous systems (i.e. AUV, Gliders, USV and UAV). The use of virtual simulation is devoted to support validation of new concepts and investigation of collaborative engineering solutions by providing a virtual representation of the current situation; this approach support the creation of dynamic interoperable immersive framework that could support training for Man in the Loop, education and tactical decision introducing the Man on the Loop concepts. The research and development of the Autonomous Underwater Vehicles requires continuous testing so a time effective approach can result a very useful tool. In this context the simulation can be useful to better understand the behaviour of Unmanned Vehicles and to avoid useless experimentations and their costs finding problems before doing them. This research project proposes the creation of a virtual environment with the aim to see and understand a Joint Naval Scenario. The study will be focusing especially on the integration of Autonomous Systems with traditional assets; the proposed simulation deals especially with collaborative operation involving different types of Autonomous Underwater Vehicles (AUV), Unmanned Surface Vehicles (USV) and UAV (Unmanned Aerial Vehicle). The author develops an interoperable virtual simulation devoted to present the overall situation for supervision considering also the sensor capabilities, communications and mission effectiveness that results dependent of the different asset interaction over a complex heterogeneous network. The aim of this research is to develop a flexible virtual simulation solution as crucial element of an HLA federation able to address the complexity of Extended Maritime Framework (EMF). Indeed this new generation of marine interoperable simulation is a strategic advantage for investigating the problems related to the operational use of autonomous systems and to finding new ways to use them respect to different scenarios. The research deal with the creation of two scenarios, one related to military operations and another one on coastal and littoral protection where the virtual simulation propose the overall situation and allows to navigate into the virtual world considering the complex physics affecting movement, perception, interaction and communication. By this approach, it becomes evident the capability to identify, by experimental analysis within the virtual world, the new solutions in terms of engineering and technological configuration of the different systems and vehicles as well as new operational models and tactics to address the specific mission environment. The case of study is a maritime scenario with a representation of heterogeneous network frameworks that involves multiple vehicles both naval and aerial including AUVs, USVs, gliders, helicopter, ships, submarines, satellite, buoys and sensors. For the sake of clarity aerial communications will be represented divided from underwater ones. A connection point for the latter will be set on the keel line of surface vessels representing communication happening via acoustic modem. To represent limits in underwater communications, underwater signals have been considerably slowed down in order to have a more realistic comparison with aerial ones. A maximum communication distance is set, beyond which no communication can take place. To ensure interoperability the HLA Standard (IEEE 1516 evolved) is adopted to federate other simulators so to allow its extensibility for other case studies. Two different scenarios are modelled in 3D visualization: Open Water and Port Protection. The first one aims to simulate interactions between traditional assets in Extended Maritime Framework (EMF) such as satellite, navy ships, submarines, NATO Research Vessels (NRVs), helicopters, with new generation unmanned assets as AUV, Gliders, UAV, USV and the mutual advantage the subjects involved in the scenario can have; in other word, the increase in persistence, interoperability and efficacy. The second scenario models the behaviour of unmanned assets, an AUV and an USV, patrolling a harbour to find possible threats. This aims to develop an algorithm to lead patrolling path toward an optimum, guaranteeing a high probability of success in the safest way reducing human involvement in the scenario. End users of the simulation face a graphical 3D representation of the scenario where assets would be represented. He can moves in the scenario through a Free Camera in Graphic User Interface (GUI) configured to entitle users to move around the scene and observe the 3D sea scenario. In this way, players are able to move freely in the synthetic environment in order to choose the best perspective of the scene. The work is intended to provide a valid tool to evaluate the defencelessness of on-shore and offshore critical infrastructures that could includes the use of new technologies to take care of security best and preserve themselves against disasters both on economical and environmental ones

    INTEROPERABILITY FOR MODELING AND SIMULATION IN MARITIME EXTENDED FRAMEWORK

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    This thesis reports on the most relevant researches performed during the years of the Ph.D. at the Genova University and within the Simulation Team. The researches have been performed according to M&S well known recognized standards. The studies performed on interoperable simulation cover all the environments of the Extended Maritime Framework, namely Sea Surface, Underwater, Air, Coast & Land, Space and Cyber Space. The applications cover both the civil and defence domain. The aim is to demonstrate the potential of M&S applications for the Extended Maritime Framework, applied to innovative unmanned vehicles as well as to traditional assets, human personnel included. A variety of techniques and methodology have been fruitfully applied in the researches, ranging from interoperable simulation, discrete event simulation, stochastic simulation, artificial intelligence, decision support system and even human behaviour modelling

    ICTERI 2020: ІКТ в освіті, дослідженнях та промислових застосуваннях. Інтеграція, гармонізація та передача знань 2020: Матеріали 16-ї Міжнародної конференції. Том II: Семінари. Харків, Україна, 06-10 жовтня 2020 р.

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    This volume represents the proceedings of the Workshops co-located with the 16th International Conference on ICT in Education, Research, and Industrial Applications, held in Kharkiv, Ukraine, in October 2020. It comprises 101 contributed papers that were carefully peer-reviewed and selected from 233 submissions for the five workshops: RMSEBT, TheRMIT, ITER, 3L-Person, CoSinE, MROL. The volume is structured in six parts, each presenting the contributions for a particular workshop. The topical scope of the volume is aligned with the thematic tracks of ICTERI 2020: (I) Advances in ICT Research; (II) Information Systems: Technology and Applications; (III) Academia/Industry ICT Cooperation; and (IV) ICT in Education.Цей збірник представляє матеріали семінарів, які були проведені в рамках 16-ї Міжнародної конференції з ІКТ в освіті, наукових дослідженнях та промислових застосуваннях, що відбулася в Харкові, Україна, у жовтні 2020 року. Він містить 101 доповідь, які були ретельно рецензовані та відібрані з 233 заявок на участь у п'яти воркшопах: RMSEBT, TheRMIT, ITER, 3L-Person, CoSinE, MROL. Збірник складається з шести частин, кожна з яких представляє матеріали для певного семінару. Тематична спрямованість збірника узгоджена з тематичними напрямками ICTERI 2020: (I) Досягнення в галузі досліджень ІКТ; (II) Інформаційні системи: Технології і застосування; (ІІІ) Співпраця в галузі ІКТ між академічними і промисловими колами; і (IV) ІКТ в освіті
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