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The Analysis And Design Method Of Flight Cyber-Physical System Driven By Big Data

Posted on:2017-05-02Degree:MasterType:Thesis
Country:ChinaCandidate:W ZhongFull Text:PDF
GTID:2272330485469642Subject:Computer Science and Technology
Abstract/Summary:
Flight Cyber-Physical System (FCPS) is the CPS applied to the field of aviation. On the basis of the electronic flight system, FCPS possess higher informatization and networked level. It is the development direction of the next generation of flight systems.The US ’Dreamliner’ Boeing 787 that latest development as an example, it uses more advanced sensor technology, has power of computing and control, possess more robust, intelligent communication ability, with the ability to connect to the network, and there are more integrated airborne equipment and software modules. In the global system that consisted of sky, space and ground,such aircraft likes a flight intelligent node, is able to ensure flight safety and their own position、time information is accurate, and can send these information to stakeholders which to making scientific decision or to doing social services in real-time. Around the entire flight system, about its classification, academia don’t have clearly definition. Subject to the aircraft, flight system probably include Air Traffic Management System (ATMS), Aircraft Airborne System (AAS), as well as Airport Management System (AMS), etc. The flight system that involves aircraft airborne systems, ground systems, satellite systems, airport management, air traffic control units, and a very large link, monitor, manage network between them each other. A wide range of complex systems, having large and heterogeneous data. Whether in the past or the future, human beings want the aircraft likes train or cars that with more reliable safety factor. In the day aways happened aircraft disaster,safety seem particularly important.There is no doubt, in order to solve these massive data processing and storage problems,Big Data technologies emerged. Today, Big Data has been used in the field of different industry, as mentioned earlier, the flight system、monitoring system、 ground transportation、e-commerce systems、medical systems、social networks、 sensors networks、social survey and so on. Faced with these opportunities and challenges, big data technology has developed rapidly. Its techniques include such as genetic algorithms, neural networks, data mining, machine learning, multidimensional analysis, data fusion and integration, storage technology and distributed file systems, non-relational database, visualization and other major areas points. No matter how complex big data, but the central idea is to achieve a haystack, so that created a ready-made or indirect value and inspiration.AADL (Architecture Analysis and Design Language) is a language that drawing lessens of the UML, Marte, etc,and which support the text and graphical modeling. AADL is particularly effective for model-based analysis and complex real-time embedded systems. AADL also provide a standard and accurate way to describe the complex real-time embedded systems, security, scheduling and other non-functional properties, so that programmers can advance to schedulability, feasibility analysis to ensure that the conversion model and automatically generate code consistency. Use AADL language FCPS modeling can be a good representation of the non-functional properties, to ensure efficient of system development process.This paper contains an basic introduction to the basic of CPS and Big Data.The current Big Data technology of data collection, data processing, data storage were systematically expounded.The combination of CPS and Big Data is feasibility analysized.The cognitive architecturee of CPS driven by Big Data also is analyzed,and the function and characteristics of each hierarchy architecture are discussed in detail.Comprehensive technical characteristics of big data and the CPS system requirements, puts foward FCPS driven by Big Data.Which based on the technology of data monitoring and maintenance system, the collection storage, processing has been carried on the systematic analysis.In this paper, the FCPS of flight control, the airport management are analyzed and discussed.Next to modeling the aviation electron cloud by AADL, and verify its fault tolerance. The basic features and sets of AADL are listed.Use Modlica on physical modeling extension.Especially for flight guidance and control system are analyzed in modeling.Finally on the modeling flow delay, scheduling and overall is verified.
Keywords/Search Tags:FCPS, Big Data, AADL, FG&CS
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