基于架构的民航信息系统可靠性评估研究

发布时间：2018-06-07 00:15

  本文选题：民航信息系统 + 可靠性评估　； 参考：《中国民航大学》2016年硕士论文

【摘要】：民航旅客服务信息系统TPIS(Travelsky Passenger Information and Service System)是国家和民航局重点关注核心系统,TPIS系统包括21个功能庞大、结构复杂的分系统,在民航运输领域有重要作用。TPIS系统的可靠性研究对保证其正常地为航空公司、机场、空管、代理人及旅客提供服务有重要意义。论文主要工作有:在模块可靠度参数方面,针对TPIS各分系统的组成模块来源、性能与功能互不相同,论文以DTMC模型为基础,将Black Box模型融入White Box理念,提出模块可靠度竞争匹配选择方法来代替单一的拟合算法,将Bayes估计分别结合进NHPP模型、Shchneidwind模型和Goel-Okumoto模型三个模块可靠度候选模型,利用先验信息充分把握失效数据统计特征,拟合出的每个模块的可靠度参数更加接近真实值,最终评估结果更真实可信。在模块交互作用模式方面,针对模块失效独立且模块迁移符合随机Markov性的假设局限性,结合TPIS各分系统结构复杂及模块间相互作用模式呈多样性的特点,论文提出了模块作用模式化方法,归类分析了TPIS系统中的特殊模块作用模式,并逐一分析每种特殊模块作用模式转化到符合模型假设的模式化转过程,弥补了原始模型与真实TPIS系统之间的差异不足。最后对TPIS系统可靠性评估分析与关键参数分析,特别是关键参数分析,列出了对系统可靠性影响度大的关键模块和系统当前失效风险大的关键模块,从而提供可以提高系统可靠性的可行性技术参考。
[Abstract]:Civil Aviation passenger Service Information system (TPIS(Travelsky Passenger Information and Service System) is the core system of the State and Civil Aviation Administration (CAA), which includes 21 subsystems with huge functions and complex structure. The research on the reliability of TPIS system plays an important role in the field of civil aviation transportation. The main work of this paper is as follows: in the aspect of module reliability parameter, aiming at the source of components of TPIS subsystem, the performance and function are different. The paper is based on DTMC model and integrates Black Box model into White Box concept. In this paper, the method of module reliability competition matching selection is proposed to replace the single fitting algorithm. The Bayes estimation is combined into the NHPP model and the Goel-Okumoto model respectively, and the statistical characteristics of the failure data are fully grasped by the prior information. The reliability parameters of each module are closer to the true value, and the final evaluation results are more reliable. In the aspect of module interaction mode, aiming at the limitation of the assumption that module failure is independent and module migration conforms to random Markov, considering the complex structure of each subsystem of TPIS and the diversity of interaction modes among modules, In this paper, a modular action model method is proposed, and the special module action mode in TPIS system is classified and analyzed, and the conversion process of each special module action mode to the model hypothesis is analyzed one by one. It makes up for the difference between the original model and the real TPIS system. Finally, the key modules of TPIS system reliability evaluation and key parameter analysis, especially the key parameter analysis, are listed, which have great impact on the system reliability and the key modules with high failure risk at present. Thus, the feasibility technical reference can be provided to improve the reliability of the system.
【学位授予单位】：中国民航大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：V35-39
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本文编号：1988765