So , in the design of highly reliable fadec system , it is greatly necessary to enhance research & development of fault - tolerant software system . in this paper , software technique applied to highly reliable fadec system is studied . the fadec system consists of hardware layer based on similarity redundancy technique and software layer based on dissimilarity redundancy technique 面对目前国内关于航空发动机高可靠性fadec软件系统研究工作相对滞后的现状,本文针对硬件层基于相似余度技术,软件层基于非相似余度技术构成高可靠性fadec系统的相关软件技术进行了研究。
From the point of service development and integrated oam , after analyzing the main features of services and etom model , we think that all functions in 3 different area of provision , management and bill which is separated must be integrated seamlessly in business process . to implement these unified processes , a services - independent software management platform is crucial ; the main service components , software framework of services - independent platform and software technique used in this architecture are also discussed in this part . take the emergent need of service management and oam in softswitch test network into account , 2 subsystems are developed with the guideline of services - independent platform in this stage 其次在新的网络条件和业务模式下,以业务开发、综合运维管理为出发点,详细分析新业务的基本特点,结合etom模型的思想,将传统上分离的实施、保障和计费三个功能域,在统一的过程中进行管理;以统一的管理过程为基础,针对ngn和软交换业务的软件管理平台,提出了业务无关管理平台的思想,列出其主要功能组成,分析了业务无关平台实现的软件技术框架;结合综合业务网现有的结构和业务营运模式、当前运维管理的迫切需要,现有的管理系统的不足,从业务无关平台的架构出发,以新业务的开展和综合运维管理这两个主要的功能目标,完成了软交换业务自助平台和运维支撑两个子系统;以这两个子系统为基础,以最终的ngnoss为目标,讨论以业务无关平台构成ngnoss的问题。
The multicenter superwide view reappearance system which based on a technique of digital video composition is a complete set of innovative technological system from photographing and producing to output in partition and then to network synchronous playing and till a integral display . it applys many kinds of modem technique , such as photographing , digital video producing , multimedia , network and display , and on the commonly used platform it has realized a effect through software technique that only expensive and special equipment can achieve 基于数字视频合成技术的多通道超宽视景再现系统,是一种从拍摄制作到分割输出再到网络同步播放直至一体化显示的一整套创新的技术体系,它整合应用摄录像技术、数字视频制作技术、多媒体技术、网络技术、显示技术等多种现代技术,在通用设备平台上,利用软件技术实现了昂贵特种设备才能实现的效果。