便携式卫星通信地球站高可用度研究与设计

发布时间：2018-04-12 09:43

本文选题：便携式卫星通信地球站 + 可靠性分析　；参考：《南京邮电大学》2017年硕士论文

【摘要】：便携式卫星通信地球站在抗震救灾、新闻通信等作业中有着广泛的应用。随着其业务的增加,市场对卫星通信地球站的功能、可用度也有着更高的需求,需要便携式卫星通信地球站不仅能够完成通信功能,同时需要具备在指定的时间段内能够正常工作能力,这种能力可以使用可用度参数来表示。本文分析了可用度与可靠性、维修性之间的联系以及其理论分析方法,分析了便携式卫星通信地球站的系统构成原理,研究了系统中各个子模块之间的联系,以及其硬件设计;分析了各个子系统以及整个系统的可用度参数,并找出造成系统可用度不满足要求的不足之处;通过分析各个子模块之间的功能相似性,找出子模块之间存在的相同功能点,系统会充分利用这些功能相同的单元保证单元失效后能够使用相似的单元继续工作,保证系统能够持续工作,从而提高系统可用度。本文设计出的高可用系统,充分挖掘子模块之间的相似功能点,以及发生故障后故障恢复的方法,并且采用冗余贮备技术来提高系统可用度。设计中采用双贮备热切换技术,该技术使用完全相同的单元,在一个单元失效时,贮备单元能够切换工作,使系统恢复正常。通过理论论证,本高可用度系统设计能够有效提高系统的可用度,满足高可用度指标。
[Abstract]:Portable satellite communication earth station in earthquake relief, news communications and other operations have a wide range of applications.With the increase of its business, the market has higher demand for the function and availability of satellite communication earth station, which requires that the portable satellite communication earth station can not only complete the communication function,It also requires the ability to work within a specified period of time, which can be represented by the availability parameter.In this paper, the relationship between availability and reliability, maintainability and its theoretical analysis method are analyzed. The system structure principle of portable satellite communication earth station is analyzed, and the connection between each sub-module of the system and its hardware design are studied.This paper analyzes the availability parameters of each subsystem and the whole system, and finds out the inadequacies that cause the system availability not to meet the requirements, and finds out the same function points among the sub-modules by analyzing the functional similarity among the sub-modules.The system will make full use of these units with the same function to ensure that the units can continue to work with similar units after failure, so as to ensure that the system can continue to work, thus improving the system availability.The high availability system designed in this paper fully excavates the similar function points between sub-modules, and the method of fault recovery after failure, and uses redundant storage technology to improve the system availability.The dual standby hot switching technique is used in the design. The same unit is used in the design. When one unit fails, the standby unit can switch operation and make the system return to normal.It is proved theoretically that the design of the high availability system can effectively improve the availability of the system and meet the high availability index.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN927.2

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