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Nazarpour, Hosein. "Surveillance de systèmes à composants multi-threads et distribués". Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAM027/document.
Pełny tekst źródłaComponent-based design is the process leading from given requirements and a set of predefined components to a system meeting the requirements. Components are abstract building blocks encapsulating behavior. They can be composed in order to build composite components. Their composition should be rigorously defined so that it is possible to infer the behavior of composite components from the behavior of their constituents as well as global properties from the properties of individual components. It is, however, generally not possible to ensure or verify the desired property using static verification techniques such as model-checking or static analysis, either because of the state-space explosion problem or because the property can only be decided with information available at runtime (e.g., from the user or the environment). Runtime Verification (RV) is an umbrella term denoting the languages, techniques, and tools for the dynamic verification of system executions against formally-specified behavioral properties. In this context, a run of the system under scrutiny is analyzed using a decision procedure: a monitor. Generally, the monitor may be generated from a user-provided specification (e.g., a temporal-logic formula, an automaton), performs a step-by-step analysis of an execution captured as a sequence of system states, and produces a sequence of verdicts (truth-values taken from a truth-domain) indicating specification satisfaction or violation.This thesis addresses the problem of runtime monitoring multi-threaded and distributed component-based systems with multi-party interactions (CBSs). Although, neither the exact model nor the behavior of the system are known (black box system), the semantic of such CBSs can be modeled with labeled transition systems (LTSs). Inspiring from conformance testing theory, we refer to this as the monitoring hypothesis. Our monitoring hypothesis makes our approach oblivious of (i) the behavior of the CBSs, and (ii) how this behavior is obtained. We consider a general abstract semantic model of CBSs consisting of a set of intrinsically independent components whose interactions are managed by several schedulers. Using such an abstract model, one can obtain systems with different degrees of parallelism, such as sequential, multi-threaded and distributed systems. When monitoring concurrent (multi-threaded and distributed) CBSs, the problem that arises is that a global state of the system is not available at runtime, since the schedulers execute interactions even by knowing the partial state of the system. Moreover, in distributed systems the total ordering of the execution of the interaction is not observable. A naive solution to these problems would be to plug in a monitor which would however force the system to synchronize in order to obtain the sequence of global states as well as the total ordering of the executions at runtime Such a solution would defeat the whole purpose of having concurrent executions and distributed systems. We define two approaches for the monitoring of multi-threaded and distributed CBSs. In both approaches, we instrument the system to retrieve the local events of the schedulers. Local events are sent to an online monitor which reconstructs on-the-fly the set of global traces that are i) compatible with the local traces of the schedulers, and ii) suitable for monitoring purposes, in a concurrency-preserving fashion
Venturino, Antonello. "Constrained distributed state estimation for surveillance missions using multi-sensor multi-robot systems". Electronic Thesis or Diss., université Paris-Saclay, 2022. http://www.theses.fr/2022UPAST118.
Pełny tekst źródłaDistributed algorithms have pervaded many aspects of control engineering with applications for multi-robot systems, sensor networks, covering topics such as control, state estimation, fault detection, cyber-attack detection and mitigation on cyber-physical systems, etc. Indeed, distributed schemes face problems like scalability and communication between agents. In multi-agent systems applications (e.g. fleet of mobile robots, sensor networks) it is now common to design state estimation algorithms in a distributed way so that the agents can accomplish their tasks based on some shared information within their neighborhoods. In surveillance missions, a low-cost static Sensor Network (e.g. with cameras) could be deployed to localize in a distributed way intruders in a given area. In this context, the main objective of this work is to design distributed observers to estimate the state of a dynamic system (e.g. a multi-robot system) that efficiently handle constraints and uncertainties but with reduced computation load. This PhD thesis proposes new Distributed Moving Horizon Estimation (DMHE) algorithms with a Luenberger pre-estimation in the formulation of the local problem solved by each sensor, resulting in a significant reduction of the computation time, while preserving the estimation accuracy. Moreover, this manuscript proposes a consensus strategy to enhance the convergence time of the estimates among sensors while dealing with weak unobservability conditions (e.g. vehicles not visible by some cameras). Another contribution concerns the improvement of the convergence of the estimation error by mitigating unobservability issues by using a l-step neighborhood information spreading mechanism. The proposed distributed estimation is designed for realistic large-scale systems scenarios involving sporadic measurements (i.e. available at time instants a priori unknown). To this aim, constraints on measurements (e.g. camera field of view) are embodied using time-varying binary parameters in the optimization problem. Both realistic simulations within the Robot Operating System (ROS) framework and Gazebo environment, as well as experimental validation of the proposed DMHE localization technique of a Multi-Vehicle System (MVS) with ground mobile robots are performed, using a static Sensor Network composed of low-cost cameras which provide measurements on the positions of the robots of the MVS. The proposed algorithms are compared to previous results from the literature, considering several metrics such as computation time and accuracy of the estimates
Renzaglia, Alessandro. "Optimisation stochastique et adaptative pour surveillance coopérative par une équipe de micro-véhicules aériens". Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00721748.
Pełny tekst źródłaRoux, Julien. "Conception d'un capteur distribué pour la surveillance de l'état hydrique des sols". Thesis, Toulouse, INSA, 2017. http://www.theses.fr/2017ISAT0031/document.
Pełny tekst źródłaOwing to the development of the smart farming, some new studies need to be lead on a distributed instrumentation to measure soil moisture to control the irrigation.In the project IRRIS context, we realize a smart soil moisture sensor. First, we have to realize the sensing element of this sensor. We choose a capacitive detection to get a reactive sensor despite low cost. The body is a cylinder to be easily buried in the soil. The electrodes are made by electrochemical deposition on the plastic tube. Then, we design the measurement electronic. We compare two solutions, one with discrete components and the other software on embedded microcontroller. We submit those electronics at thermic variations to observe their comportment to create the law of compensation. Next we assemble the sensor according to two ways. The first, the multi sensor, forces the depths of sensing but reduces the costs by pooling the measurement electronic. The second, the mono sensor, frees the choice of depth but multiplies the number of sensors. We create at this step the sensor network thanks a wireless communication placed on 868MHz, an ISM band that we characterize in terms of range depending on the flow rate to optimize this communication. Finally, we observe the results of three measurement campaigns to validate the operating for different soil and cultures.This study ends in the realization of a sensor to measure soil moisture with a reduced cost relative to the industrial sensor on the market. Experiments prove its ease of use as well as its proper functioning
Marshall, Michael Brian. "A Swarm Intelligence Approach to Distributed Mobile Surveillance". Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/35120.
Pełny tekst źródłaMaster of Science
Zajdel, Wojciech Piotr. "Bayesian visual surveillance from object detection to distributed cameras /". [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2005. http://dare.uva.nl/document/18901.
Pełny tekst źródłaBOUFAIED, Amine. "Contribution à la surveillance distribuée des systèmes à événements discrets complexes". Phd thesis, Université Paul Sabatier - Toulouse III, 2003. http://tel.archives-ouvertes.fr/tel-00010972.
Pełny tekst źródłaBoufaied, Amine. "Contribution à la surveillance distribuée des systèmes à évènements discrets complexes". Toulouse 3, 2003. http://www.theses.fr/2003TOU30234.
Pełny tekst źródłaDi, Caterina Gaetano. "Video analyytics algorithms and distributed solutions for smart video surveillance". Thesis, University of Strathclyde, 2013. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=18949.
Pełny tekst źródłaSalhi, Miyassa. "Étude d’un système de surveillance de structure par fibre optique reposant sur l’effet Brillouin". Thesis, Paris Est, 2020. http://www.theses.fr/2020PESC2031.
Pełny tekst źródłaThe use of distributed sensors fiber optic delivering information in each point of the fiber is an important tool for large-scale structures surveillance strategies in civil engineering. The spontaneous Brillouin scattering phenomenon (or stimulated) in the field of sensors optical fiber is subject to strong scientific inquiry since the 1990s. The proposed industrial solutions are based on the spectral analysis of the Stokes wavelength backscattered along the length of the fiber. Thus, a B-OTDR device (Brillouin Optical Time-Domain Reflectometer) can perform a measurement of the shift of the Brillouin frequency (of the order of 11GHz around 1.55 µm) with a metric spatial resolution and sensitivity of the strain measurements and temperature respectively of about 10 µm/m and 0.5 °C, but at a high cost (about 100k€) which limits their use. This thesis is oriented towards the study of a monitoring system based on the use of a bi-frequency bi-polarization source, which would make it possible to remedy the drawbacks of conventional systems and have equivalent performances with state of the art solutions
Andersen, Evan D. "A surveillance system to create and distribute geo-referenced mosaics from SUAV video /". Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2416.pdf.
Pełny tekst źródłaValera, Espina Maria. "An approach for designing a real-time intelligent distributed surveillance system". Thesis, Kingston University, 2006. http://eprints.kingston.ac.uk/20298/.
Pełny tekst źródłaAndersen, Evan D. "A Surveillance System to Create and Distribute Geo-Referenced Mosaics Using SUAV Video". BYU ScholarsArchive, 2008. https://scholarsarchive.byu.edu/etd/1679.
Pełny tekst źródłaPalaniappan, Ravishankar. "A SELF-ORGANIZING HYBRID SENSOR SYSTEM WITH DISTRIBUTED DATA FUSION FOR INTRUDER TRACKING AND SURVEILLANCE". Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2407.
Pełny tekst źródłaPh.D.
School of Electrical Engineering and Computer Science
Engineering and Computer Science
Modeling and Simulation PhD
Rammal, Ali. "Modélisation multi-agent dans un processus de gestion multi acteur, application au maintien à domicile". Toulouse 3, 2010. http://thesesups.ups-tlse.fr/1116/.
Pełny tekst źródłaThis research can be seen as a macroscopic approach to a large-scale distributed data gathering. We propose a software architecture to monitor elderly or dependent people in their own house. Many studies have been done on hardware aspects resulting in operational products. But there is a lack of adaptive algorithms to handle all the data generated by these products, because such data is distributed and heterogeneous in a large scale environment. We propose a multi-agent classification method to collect and to aggregate data about activity, movements and physiological information of the monitored people: agent's know-how consists in a simple classification algorithm. Data generated at this local level are communicated and adjusted between agents to obtain a set of patterns. This data is dynamic; the system has to store the built patterns and has to create new patterns when new data is available. Therefore, the system is adaptive and can be spread on a large scale. The generated data is used at a local level, for example to raise an alert, but also to evaluate global risks. We present the specification choices and the massively multi-agent architecture we developed
Barros, de Sales André. "Gestion de bout en bout de la qualité des services distribués : surveillance et sélection par une approche Modelware". Toulouse 3, 2004. http://www.theses.fr/2004TOU30075.
Pełny tekst źródłaOur work contributes to offer a selection of published services in distributed systems based on monitored quality management information. From an informational approach, we had the means to model the influence of Systems and Networks so as to automate their management (identification of dependencies, automatic deduction of change of state etc. ). Our informational model driven architecture (Modelware) led us to specify a designing method for management applications, expressing a double independency: one in regard to specific managed domains and another in relation to management platforms. The integrated and contextual monitoring of service was linked to an "advanced selection of service" thus offering a real-time instrumentation of Quality of Service - QoS parameters. Our solution was tested for a CORBA environment, emphasizing our "Modelware" solution's specification steps towards a specific environment to be managed. This QoS information was added to the services published in the CORBA Trader service
Jedidi, Hatem. "Outils logiciels pour la surveillance et la détection des fautes dans les systèmes distribués". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0031/MQ26579.pdf.
Pełny tekst źródłaRobinson, Mike. "Design and performance characterisation of a modular surveillance system for a distributed processing platform". Thesis, University of Edinburgh, 2001. http://hdl.handle.net/1842/11319.
Pełny tekst źródłaJedidi, Hatem. "Outils logiciels pour la surveillance et la detection des fautes dans les systemes distribués". Sherbrooke : Université de Sherbrooke, 1997.
Znajdź pełny tekst źródłaLiu, Junbin. "Distributed low-power image processing in wireless sensor networks for intelligent video surveillance applications". Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/63311/1/Junbin_Liu_Thesis.pdf.
Pełny tekst źródłaSong, Bi. "Scene analysis, control and communication in distributed camera networks". Diss., [Riverside, Calif.] : University of California, Riverside, 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3359910.
Pełny tekst źródłaIncludes abstract. Title from first page of PDF file (viewed January 27, 2010). Includes bibliographical references (p. 99-105). Issued in print and online. Available via ProQuest Digital Dissertations.
Gandibleux, Jean. "Contribution à l'évaluation de sûreté de fonctionnement des architectures de surveillance/diagnostic embarquées. Application au transport ferroviaire". Phd thesis, Université de Valenciennes et du Hainaut-Cambresis, 2013. http://tel.archives-ouvertes.fr/tel-00990970.
Pełny tekst źródłaBettahar, Fehd. "Conception et prototypage d'un système complet pour la surveillance du grain dans les silos de stockage". Thesis, Toulouse 2, 2016. http://www.theses.fr/2016TOU20027/document.
Pełny tekst źródłaThis thesis deals with new monitoring technologies applied to grain storage in silos. Since the first sedentary groups, cereals have been accounted as the main food for humans, as well as for livestock. The crops are seasonal and storage is a vital necessity for the world population, which currently has 7.2 billion inhabitants and will reach 9 billion in 2050. In this problematic around monitoring of silos, insects represent the first grain postharvest pest, causing considerable losses in some cases up to 10% of the production. Several techniques and methods have been developed and implemented in order to face the danger of these pests. The most common method is the use of synthetic chemical insecticides, which have an obvious negative effect on both, human health and the environment. This work is part of a cooperative program named ECOSILO, whose main objective is to design and create prototype ecological alternatives to the systematic and massive use of insecticides. This is therefore a largely multidisciplinary approach, in which we were in charge to conceptualize a comprehensive monitoring system to detect infestations early and automatically control of the attractive and insecticides spreading. Our proposal is based on logic of IPM and focuses on the prevention and early detection of possible infestations, in order to preserve stocks and to avoid reaching high level of economic loss. Its fundamental originality lies in the proposition of a predictive model of the development of the infestation, which consists of coupling a thermal model of the silo with a biological model describing insect growth. Thus, it is possible, with additional weather data support, to anticipate the development of insects and initiate preventive alarms. This solution is accompanied by more specific electronic and computer monitoring developments in silos: a detection system at the entrance of silos; a supervision of the top of the heap of grain which is the hottest; Monitoring of the heap of grain in its entire height. These developments are implementing multiple detection modes (temperature, humidity, acoustic probe, CO2). All these technical contributions are incorporated in the form of a comprehensive monitoring system with a user interface that meets the requirements of the overall project ECOSILO. The functional checks have been performed in laboratory and actual site. We conclude on the perspectives opened by this work
Boulmakoul, Azedine. "Vers un système à base de connaissances distribué & temps réel pour la surveillance et le contrôle du trafic en site urbain". Lyon 1, 1990. http://www.theses.fr/1990LYO10222.
Pełny tekst źródłaClement, Pierre. "Solutions aux limites des interrogateurs B-OTDR pour la surveillance d'infrastructures : augmentation de la portée de mesure et décorrélation des paramètres de température et de déformation". Electronic Thesis or Diss., Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAT042.
Pełny tekst źródłaThis thesis deals with distributed optical fiber sensors, especially Brillouin sensors called B-OTDR that are sensitive both to temperature and strain. Some actual limitations due to the scattering phenomenon avoid deployment of this technology for some specific applications. These limitations are about the maximum length measured by the sensor but also the double sensitivity to strain and temperature. From our current B-OTDR sensor, we propose solutions to address these issues.A new re-amplification module using EDFA has been developed and characterized associated to a B-OTDR system. A 150 km distributed temperature measurement with 1,5 °C repeatability has been reached. This record performance let us consider a deployment for very long infrastructure monitoring for the energy transport. In another hand, we developed a new sensing device using Brillouin scattering and able to separate temperature and strain. This patented device has been characterized and used on a specific cable inserted in a well drilling. Results have shown a combination of strain and temperature variations on the cable that give very useful information to the well operator. We have reached a temperature repeatability of 1 °C and a strain repeatability of 20 μm/m for 1 km fiber. At 10 km, temperature repeatability has been evaluated to be 3 °C and strain to 75 μm/m. These results are to the state of art for temperature/strain separation using B-OTDR.These works have led to a new distributed measurement prototype that could address simultaneously temperature, strain, acoustic vibrations, and pressure sensing. Some interesting perspectives could result from these works to address a complete infrastructure monitoring using fiber optic sensing
Hegazy, Tamir A. "A Distributed Approach to Dynamic Autonomous Agent Placement for Tracking Moving Targets with Application to Monitoring Urban Environments". Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4901.
Pełny tekst źródłaHu, Wenbiao. "Applications of Spatio-temporal Analytical Methods in Surveillance of Ross River Virus Disease". Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16109/1/Wenbiao_Hu_Thesis.pdf.
Pełny tekst źródłaHu, Wenbiao. "Applications of Spatio-temporal Analytical Methods in Surveillance of Ross River Virus Disease". Queensland University of Technology, 2005. http://eprints.qut.edu.au/16109/.
Pełny tekst źródłaMegahed, Mohamed Helmy Mostafa. "SurvSec Security Architecture for Reliable Surveillance WSN Recovery from Base Station Failure". Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31154.
Pełny tekst źródłaHolt, Ryan S. "Three Enabling Technologies for Vision-Based, Forest-Fire Perimeter Surveillance Using Multiple Unmanned Aerial Systems". BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/931.
Pełny tekst źródłaSilveira, Marcos da. "Sur la distribution avec redondance partielle de modèles à événements discrets pour la supervision de procédés industriels". Toulouse 3, 2003. http://www.theses.fr/2003TOU30225.
Pełny tekst źródłaAtohoun, Béthel Christian A. R. K. "Architecture logique d'un système multi agents de suivi multi caméra distribué : exploitation du modèle de croyance transférable". Thesis, Littoral, 2013. http://www.theses.fr/2013DUNK0373/document.
Pełny tekst źródłaThis thesis presents the joint use of the theory of evidence and multiple hypothesis tracking for modeling and managing a system for monitoring multiple cameras in a motorway. The tracking is based on the re-identification of objects (vehicles) on the basis of visuals and times informations. A realization of these concepts results in the design and implementation of a software architecture for multiple agents management of multiple camera tracking system. After presenting the state of the art on the frameworks of uncertainty management and that on information fusion for the matching, and the multi-agent systems, our contribution in this work is on two or three levels. The first was an adaptation of the decision phase of the transferable belief model to incorporate the use of multi-hypotheses tracking as a tool of ambiguity survey in case of indecision in matching situation. The second contribution was a proposition of agent-based software architecture for management of a multiple cameras tracking system. We have proposed the global system modeling as well as agents and their interactions modeling using a personal analysis method but nevertheless inspired by modelisation languages and tolls such as Agent UML, MaSE and others, because there is not yet a standard and normalized tool on the subject. Our third contribution was to begin an implementation of our agent-based software architecture using JADE (Java Agent Development Framework). Some experiment and discussions are presented at the end to lead to our conclusions and perspectives
Tang, Gula. "Research on distributed warning system of water quality in Mudan river based on EFDC and GIS". Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAD023/document.
Pełny tekst źródłaSimulation and Early Warning System (SEWS) is a powerful tool for river water quality monitoring. Mudan River, an important river in northeastern cold regions of China, can run out of China into Russia. Thus, the water quality of Mudan River is highly concerned not only locally andregionally but also internationally. Objective of this study is to establish an excellent SEWS of water quality so that the spatio-temporal distribution of water quality in both open-water and ice-covered periods can be accurately simulated and visualized to understand the spatial variation of pollutants along the river course. The dissertation is structured into 7 chapters, chapter 1 outlines the background of the study and reviews the current progress. Chapter Il compares the main available models for evaluating river water quality so that a better model can be selected as the basis to establish a modeling system for Mudan River. Chapter Ill establishes the model, the required boundary conditions and parameters for the model were verified and calibrated. Chapter IV, a distributed simulation procedure was designed to increase the simulation efficiency. Chapter V discusses more about the programing and operational issues of the distributed simulation. Chapter VI is about the core techniques to implement the system. Chapter VII is the conclusion of the study to summarize the key points and innovations of the study. The study has the following three points as innovation : a two-dimensional environmental fluid dynamics model for Mudan River, an efficient distributed model computational method and a prototype of SEWS, which can greatly improve the capability of monitoring and management of water quality in Mudan River and other similar rivers
Feng, Dawei. "Efficient end-to-end monitoring for fault management in distributed systems". Phd thesis, Université Paris Sud - Paris XI, 2014. http://tel.archives-ouvertes.fr/tel-01017083.
Pełny tekst źródłaTrieu, Thanh Ngoan. "Open data and environment simulation : environmental and social simulation on distributed process systems based on irregular cell space". Electronic Thesis or Diss., Brest, 2024. http://www.theses.fr/2024BRES0047.
Pełny tekst źródłaThe combination of Cellular automata (CA) and distributed systems provide a simple way to model environmental and social issues by dividing the relevant areas into discrete spatial segments for parallel computation. The state evolution of each segment is divided into discrete time steps. Geographic divisions as irregular cell space give a chance to take advantage of Open Data in feeding the simulation systems. Data are analyzed to deduce the transition rules bringing distributed influences in a neighborhood. A case study of epidemic propagation modeling based on geographic divisions is presented. Given an assumption that the epidemic is spreading to people living in the neighborhood, a simulation system is generated based on adjacent neighbors with initial conditions collected from the government open data portal. A hybrid approach is introduced with the cooperation between regular tiles and irregular cellspaces in modeling shore activities. Environmental simulation is needed to represent ground and sea characteristics modeling spreading occurring on both spaces. These characteristics are very different due to soil capability and reaction, and sea behavior, in particular currents and tides. The problem of green tides is modeled when nutrients arepresented in high concentrations and entrapped by tidal currents
M'Halla, Anis. "Contribution à la gestion des perturbations dans les systèmes manufacturiers à contraintes de temps". Phd thesis, Ecole Centrale de Lille, 2010. http://tel.archives-ouvertes.fr/tel-00612819.
Pełny tekst źródłaE, sousa Álan. "Amélioration de la sécurité des systèmes cyber-physiques : stratégies de détection et d'atténuation". Electronic Thesis or Diss., Reims, 2024. http://www.theses.fr/2024REIMS015.
Pełny tekst źródłaCyber-physical systems (CPS) stand at the intersection of physical operations, computing technologies, and network communications. These sophisticated systems are fundamental to the infrastructure of smart manufacturing environments, providing the means for improved control, optimization, and adaptability within various production processes. This thesis delves into addressing the significant challenges associated with safeguarding CPS from a wide range of cyber threats that pose risks to the operational integrity and overall safety of these systems. Through the application of cutting-edge control strategies like Functional Observability and Time-Scale Theory, this work introduces innovative methods aimed at the early detection and effective mitigation of False Data Injection (FDI), Zero-Dynamics Attacks (ZDA), and Denial of Service (DoS). These particular cyber threats are identified as especially prevalent and damaging within the context of industrial CPS. The strategic incorporation of textit{functional observers}, the application of the Time-Scale analytical framework, and the use of the Lyapunov stability criterion stand as notable contributions to the domain of CPS security. These approaches provide fresh insights and robust solutions to the multifaceted challenges that cyber-physical systems encounter. Moreover, the efficacy of the proposed solutions is tested and validated through a combination of simulation and hands-on experimental studies. These validation efforts underscore the capability of the proposed security enhancements to elevate the protective measures within smart manufacturing environments. Consequently, this thesis not only pushes the boundaries of current knowledge in the field of CPS security but also establishes a solid foundation for ongoing and future researches aimed at fortifying the digital infrastructure essential to the operation of smart industries. Through this study, the thesis aspires to contribute meaningfully to the development of more secure, reliable, and resilient cyber-physical systems, thereby supporting the continued evolution of smart manufacturing technologies
M'halla, Anis. "Contribution à la gestion des perturbations dans les systèmes manufacturiers à contraintes de temps". Thesis, Ecole centrale de Lille, 2010. http://www.theses.fr/2010ECLI0008/document.
Pełny tekst źródłaThe works proposed in this thesis are interested in controlling and monitoring of a particular class of production system : manufacturing job-shops with time constraints. We suppose in the study that the resources are allocated and the operations order is fixed by the module of planning/scheduling. The assumptions of repetitive functioning mode with and without assembling tasks are adopted. For this type of problems, the formalism of P-time Petri nets is used in order to study the operations time constraints.A study of the robustness of the manufacturing workshop to time constraints, has been developed. The robustness is approached with and without control reaction qualified as active robustness and passive robustness respectively, towards time disturbances. A computing algorithm of the upper bound of the passive robustness is presented. In addition, three robust control strategies facing time disturbances were developed.Furthermore, uncertainty in manufacturing systems has been studied. Our contribution in this context is by integration of the analytical knowledge of the robustness in the filtering mechanism of sensors signals that are associated to operations, by using fuzzy logic.Starting from a controlled system, we have presented in detail, a method to be followed for the implementation of a monitoring model based on the chronicles and fuzzy fault tree analysis. This approach is applied to a milk production unit
Carpen-Amarie, Alexandra. "Utilisation de BlobSeer pour le stockage de données dans les Clouds: auto-adaptation, intégration, évaluation". Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2011. http://tel.archives-ouvertes.fr/tel-00696012.
Pełny tekst źródłaRachedi, Abderrezak. "Contributions à la sécurité dans les réseaux mobiles ad Hoc". Phd thesis, Université d'Avignon, 2008. http://tel.archives-ouvertes.fr/tel-00683602.
Pełny tekst źródłaMaraval, Damien. "Mesure dynamique de déformation par rétrodiffusion Brillouin spontanée B-OTDR". Thesis, Paris, ENST, 2017. http://www.theses.fr/2017ENST0023/document.
Pełny tekst źródłaToday, three distinct and complementary technologies are available for distributed temperature, strain or vibration measurements with the analysis of Raman, Brillouin and Rayleigh backscattered light. Current industrial needs are distributed strain measurements for linear infrastructures, such as pipelines, for which linear and real-time strain distribution is required. The research work aims to design a new distributed and dynamic strain measurement system based on the analysis of spontaneous Brillouin backscatter by reflectometry. Slope assisted technique is used to accelerate the measurement acquisition, currently limited to static events because of their actual principle of sweep frequency acquisition of the Brillouin backscattering spectrum. The experimental results are characterized and validated by the simulation of the measurements of the deformation and displacement of a pipe supported between two simple supports. A mechanical model, adapted to this configuration and transposable on real projects, is developed. Through Cementys industrial partner, this model is then used for two monitoring project of pipelines with different installation facilities and purpose
Davis, Cledo L. "The systems integration of autonomous behavior analysis to create a "Maritime Smart Environment" for the enhancement of maritime domain awareness". Thesis, Monterey, California : Naval Postgraduate School, 2010. http://edocs.nps.edu/npspubs/scholarly/theses/2010/Jun/10Jun%5FDavis.pdf.
Pełny tekst źródłaThesis Advisor(s): Goshorn, Rachel ; Goshorn, Deborah. "June 2010." Description based on title screen as viewed on June 24, 2010. Author(s) subject terms: Anomaly Detection, Artificial Intelligence, Automation, Behavior Analysis, Distributed Artificial Intelligence, Intelligence-Surveillance-Reconnaissance, Maritime Domain Awareness, Maritime Force Protection, Multi-agent Systems, Network-centric Operations, Network-centric Systems Engineering, Network-centric Warfare, Smart Sensor Networks, Systems Engineering, Systems Integration, System of Systems. Includes bibliographical references (p. 209-212). Also available in print.
Maraval, Damien. "Mesure dynamique de déformation par rétrodiffusion Brillouin spontanée B-OTDR". Electronic Thesis or Diss., Paris, ENST, 2017. http://www.theses.fr/2017ENST0023.
Pełny tekst źródłaToday, three distinct and complementary technologies are available for distributed temperature, strain or vibration measurements with the analysis of Raman, Brillouin and Rayleigh backscattered light. Current industrial needs are distributed strain measurements for linear infrastructures, such as pipelines, for which linear and real-time strain distribution is required. The research work aims to design a new distributed and dynamic strain measurement system based on the analysis of spontaneous Brillouin backscatter by reflectometry. Slope assisted technique is used to accelerate the measurement acquisition, currently limited to static events because of their actual principle of sweep frequency acquisition of the Brillouin backscattering spectrum. The experimental results are characterized and validated by the simulation of the measurements of the deformation and displacement of a pipe supported between two simple supports. A mechanical model, adapted to this configuration and transposable on real projects, is developed. Through Cementys industrial partner, this model is then used for two monitoring project of pipelines with different installation facilities and purpose
Carpen-Amarie, Alexandra. "BlobSeer as a data-storage facility for clouds : self-Adaptation, integration, evaluation". Thesis, Cachan, Ecole normale supérieure, 2011. http://www.theses.fr/2011DENS0066/document.
Pełny tekst źródłaThe emergence of Cloud computing brings forward many challenges that may limit the adoption rate of the Cloud paradigm. As data volumes processed by Cloud applications increase exponentially, designing efficient and secure solutions for data management emerges as a crucial requirement. The goal of this thesis is to enhance a distributed data-management system with self-management capabilities, so that it can meet the requirements of the Cloud storage services in terms of scalability, data availability, reliability and security. Furthermore, we aim at building a Cloud data service both compatible with state-of-the-art Cloud interfaces and able to deliver high-throughput data storage. To meet these goals, we proposed generic self-awareness, self-protection and self-configuration components targeted at distributed data-management systems. We validated them on top of BlobSeer, a large-scale data-management system designed to optimize highly-concurrent data accesses. Next, we devised and implemented a BlobSeer-based file system optimized to efficiently serve as a storage backend for Cloud services. We then integrated it within a real-world Cloud environment, the Nimbus platform. The benefits and drawbacks of using Cloud storage for real-life applications have been emphasized in evaluations that involved data-intensive MapReduce applications and tightly-coupled, high-performance computing applications
Toole, Michael T. "TELEMETRY IN THEATER MISSILE DEFENSE DEVELOPMENT". International Foundation for Telemetering, 1994. http://hdl.handle.net/10150/608551.
Pełny tekst źródłaSince the Gulf War, there has been significant interest in Theater Missile Defense (TMD) resulting in funding growth from tens of millions of dollars at the time of the Gulf War to $1.7 Billion in 1994. The Ballistic Missile Defense Organization (BMDO) has developed a Theater Missile Defense test and evaluation program that will assess technological feasibility and the degree to which system functionality and performance meet technical and operational requirements. The complexity of the TMD program necessitates a comprehensive test program which includes flight testing, ground testing, and modeling and simulation. This article will provide and overview the requirements and capabilities needed to satisfy these requirements. The data processing, and telemetry communities will play a major role in providing the expertise to support the development of the nation’s future Theater Missile Defense capabilities.
TOUAF, SAMIR. "DIAGNOSTIC LOGIQUE DES SYSTEMES COMPLEXES ET DYNAMIQUES DANS UN CONTEXTE MULTI-AGENT". Phd thesis, 2005. http://tel.archives-ouvertes.fr/tel-00008768.
Pełny tekst źródłaGabin, KPODA, i 普達. "A Video Surveillance System Based on the Distributed Ommateum". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/45357050310875090021.
Pełny tekst źródła國立中興大學
電機工程學系所
101
This work deal with the design of distributed video surveillance system. Our purpose is to realize an embedded video surveillance system capable of video streaming back to a remote server, detecting and tracking any moving object using pan-tilt cameras. The constructed system should be perfectly monitorable from the remote server. We can say that we have achieved this goal by using embedded technology, socket programing, computer vision resources (algorithms) and distributed system design method. The algorithm used for detection is a background subtraction technique namely temporal frame difference. To be able to locate and track the detected object we made use of camshift algorithm. The built system is composed of four client boards and one server PC. Client’s subsystem is based on an embedded processor (Beagleboard xM) and an embedded microcontroller (MSP430F5438). A pan-tilt camera is also part of each client’s subsystem. From the remote server we make use of one two or three cameras to detect and track the same target. We also can form tracking groups each composed of two cameras to track the two different targets. So, the four cameras are considered as a compound eye of our surveillance system. The major contribution of this work is without doubt the cooperative tracking technique we have implemented. In fact, by using a leader election algorithm, we elect a leader. This leader will then select it direct neighbors (followers) and get them involved in the tracking process. With this approach we get a good cooperative tracking results. Moreover the pan–tilt system automation provide a multi-view of the monitoring scene. At last the embedded technology devices we chose give our system good computation capabilities, mobility and real-time ability.
Hilal, Allaa. "An Intelligent Sensor Management Framework for Pervasive Surveillance". Thesis, 2013. http://hdl.handle.net/10012/7481.
Pełny tekst źródłaWeng, Chi-Yu, i 翁基育. "Design of a Quick Face Detection Algorithm for the Distributed IP-based Surveillance Systems". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/5m6629.
Pełny tekst źródła國立臺北科技大學
資訊工程系研究所
97
In an environment with high secure requirement, multiple video surveillance devices may be installed in the secure environment. In this thesis, a multi-camera surveillance system is built for these environments by a set of low-cost IP-based video surveillance cameras. An embedded distributed computing library is used to support the distributed computing. The library is called D2MCE, which provides a set of easy-to-use interfaces for the programmers to develop distributed parallel programs in a logically shared memory space. The surveillance system involves four phases, including simultaneous intruder detection (SID), distributed camera selection (DCS), distributed & parallel face detection algorithm (DP-FDA), and automatic CAMShift face tracker (ACAM-FT). The advantage is that the system response time for the face detection will be shortened on the low-cost but low-performance embedded IP-cameras without the help of expensive server machines. The ACAM-FT helps system track faces and improves the performance of face tracking without the need to perform complete face detection repeatedly. The system has been implemented on a set of the Intel PXA270 embedded platforms. The result shows that good performance can be achieved on the system.
Hsu, Ming-Yuan, i 許明源. "Moving Human Detection and Behavior Analysis under Complex Foreground for Surveillance System Development Using Storm – a Distributed and fault-tolerant Real-time Computation in the Cloud". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/11221435889012992542.
Pełny tekst źródła崑山科技大學
電子工程研究所
103
This paper is a cloud-based surveillance system, which utilizes Pan-Tile-Zoom camera (PTZC) to develop a moving human detection and behavior analysis under complex foreground for surveillance system development using Storm, a distributed and fault-tolerant real-time computation in the cloud. The system first builds the background image needed for moving human and behavior detection, and then uses the temporal difference to obtain the moving objects. The information of moving human is obtained from a rate algorithm. Finally, the combination of temporal difference and background subtraction methods is used as the foundation for moving human detection and behavior analysis under the complex Foreground. To detect moving human smoothly, the ratio of moving objects was used to differentiate between human and the others. After video streaming was processed by the algorithm, an extra frame was put on the moving human and the sequential actions can also be detected. From the tracking results, the system would generate internal events and send warning messages to users, relative people or organizations through email, SMS or some subsystems coordinated by XMPP protocol. Moreover, this paper will do further experiments on multiple moving humans to show that the system can reach the expectations of multiple moving humans detection and behavior analysis under complex foreground, and the feasibility of the proposed methods.