综合网管中通用接口适配器的设计与实现

针对目前多网络管理接口共存的现状,设计了一个通用的接口适配器对多协议接口进行适配,解决多厂商设备下的互连互通互操作问题,为构建综合网管系统提供基础。在接口适配关键技术的实现中应用设计模式,借鉴开源项目Openadaptor Framework的设计思想,解决综合网管接口适配中的核心技术问题,同时可提高系统的开发效率和软件的复用率。     

Design and verification of an efficient WISHBONE-based network interface for network on chip

In this paper, a generic asynchronous First In First Out (FIFO) based WISHBONE compatible plug and play Network Interface (NI) for Network on Chip (NoC) is designed and verified. Four different types of encoded asynchronous FIFOs namely binary, Gray, one-hot and Johnson are designed and analyzed. It is found that Gray-code asynchronous FIFO is the best to handle the asynchronous clock domain issues in NI. The control signals of the WISHBONE bus wrappers from/to asynchronous FIFOs and packing/unpacking modules are asserted concurrently at the same rising edge of the respective router and IP clocks to reduce the latency. The same NI has been utilized for transferring data between synchronous as well as asynchronous clock domains irrespective of clock frequency and phase differences. The proposed NI ensures the seamless high data throughput between the routers and IP cores with minimal latency, higher throughput, higher speed and utilized lesser area compared to the existing design.     

Service process simulation for integrated service evaluation

The design of services has become an important issue discussed in various industries. For the design of attractive and sustainable services, it is important to satisfy the requirements of various stakeholders simultaneously. To evaluate the fulfillment of them in a quantitative manner, the process simulation of a service would be an effective approach. However, the method to develop a simulation model to evaluate a service with various evaluation criteria has not been proposed. In this study, the authors propose the evaluation framework and the service process model to describe the influence of a service to various stakeholders and suggest the simulation method based on it.     

矿用综合信息接口箱设计

针对煤矿井下移动场合的信号传输存在线缆续接繁琐等问题,设计了一种适用于移动场合的矿用综合信息接口箱。该接口箱利用DSL技术,采用以太网标准接口作为中间转换接口,实现了多种信号的集中接入及综合传输功能,具有线缆续接方便、整体移动性较好、传输带宽宽的优点。     

一种集成化多接口航电网络测试平台设计与实现

针对目前先进飞机的航电网络架构,分析其测试平台的特点和应具有的基本功能,设计了一种集成化、多接口、可动态配置的航电网络测试平台,支持对航电网络各种类型数据接口的通信测试、航电系统的模拟仿真及系统测试验证,通过零活的管脚编程实现了测试用例和测试配置的动态选择,设计并实现了测试平台硬件及上位机测试软件,并在航电网络测试工程实践中取得良好应用。     

大数据驱动的网络综合监测系统的设计与实现

当前的网络监测分析平台存在着检测数据来源单一、数据割裂、数据整合能力弱等不足,特别是新型攻击手段对传统基于已知规则库进行安全监测方法带来巨大冲击。充分利用大数据分析及预测技术,实现对DPI、DFI、NetFlow、主动测量和扫描、SNMP、SLA等多元化数据的采集,支持流量、性能、安全等结构化及非结构化数据的处理和存储,呈现以态势感知、流量透视、回溯分析、性能监控、安全检测、资产管理功能为核心,融合设备与拓扑管理、专题分析、攻击反制、异常文件识别和还原、主动测量等手段,具备不依赖规则而检测网络威胁的能力,打造一体化网络综合、智能化监测分析解决方案。     

基于服务评价管理的自组织网络数据共享机制

为了解决移动自组织网络中路由路径必须至少有一条完整路径的限制,以及数据信息的安全和共享,节点存储负载等问题,提出了基于节点疏密度的动态路由算法。并对网络中的缓存资源提出了基于服务评价管理的共享机制,使网络在节点疏密度不同时,仍然能够提供安全、优质的服务。在该机制中,当移动节点发送通信申请时,对网络中的邻域节点所持有的信息进行考核,满足通信条件的节点信息进行交互,服务结束后,参与节点对其服务进行评价,并将数据和服务评价存储于邻域节点;当节点疏密度降低时,发送代理缓存请求给就近节点,就近节点作为代理节点提供相应的数据服务;对缓存资源中服务评价低于用户安全需求的数据信息进行更新删除。该机制有效地提高了移动自组织网络的数据安全性和网络健壮性,减少了带宽通信和数据存储空间的压力。     

综合网管中对阿尔卡特网管接口的研究

介绍了多厂商环境下SDH传输网的管理现状,概述了在此环境下综合网管系统与厂商专用网管系统的层次结构和相互关系.并以阿尔卡特厂商为例,分析了专用的网元管理系统接口和子网管理系统接口的通信协议和信息模型,以及多个专用网管系统与综合网管系统之间接口适配器的开发,总结了综合网管系统要实现对多厂商网络的管理所需的关键步骤.     

An integrated data preparation scheme for neural network data analysis

Data preparation is an important and critical step in neural network modeling for complex data analysis and it has a huge impact on the success of a wide variety of complex data analysis tasks, such as data mining and knowledge discovery. Although data preparation in neural network data analysis is important, some existing literature about the neural network data preparation are scattered, and there is no systematic study about data preparation for neural network data analysis. In this study, we first propose an integrated data preparation scheme as a systematic study for neural network data analysis. In the integrated scheme, a survey of data preparation, focusing on problems with the data and corresponding processing techniques, is then provided. Meantime, some intelligent data preparation solution to some important issues and dilemmas with the integrated scheme are discussed in detail. Subsequently, a cost-benefit analysis framework for this integrated scheme is presented to analyze the effect of data preparation on complex data analysis. Finally, a typical example of complex data analysis from the financial domain is provided in order to show the application of data preparation techniques and to demonstrate the impact of data preparation on complex data analysis.     

Design, implementation and evaluation of an adaptive user interface

Software systems developed in recent years are becoming increasingly powerful, but in most cases they tend to abandon the user to deal with the complexity of the system alone. There is an immense need for systems with individual, context-sensitive support. The paper discusses the development of such a support system with special focus on the user interface. The extension of an existing and complex program. Excel, to an adaptive and customizable system is described. This extension is called Flexcel, and it has been implemented and evaluated.

The primary aim of this extension is to provide a convenient environment for adapting Excel's user interface to particular users and their current tasks. For example, it allows the user to define new menu for actions that are frequently needed and normally require a tedious dialog step. Flexcel also analyzes the user's interaction style and presents adaptation suggestions. A critique component supports the user in his/her problem solving and learning activities related to the adaptability of Flexcel's user interface.     

基于变更管理的网络管理接口服务动态发现模型*

介绍了网络管理接口服务的特点;分析了现有服务发现机制应用到网络管理领域中的不足;提出了一种基于变更管理的网络管理接口服务发现模型,介绍了模型的特点并且详细介绍了模型中的核心实体NMISFC的功能。通过在移动网管接口中的应用,验证了此模型的有效性。     

一体化数据访问服务关键技术

为解决气象行业对多源异构海量数据的有效管理和向业务系统高时效供给数据问题,分析气象行业大数据特征和业务科研中对数据的使用场景与需求,提出一体化数据访问服务方法.利用多态数据存储管理与分布式服务架构对数据进行标准化处理和分级管理,形成地球多圈层全序列数据仓库;在此基础上设计一体化服务模型,利用服务总线集成了数据、算法、可...     

Performance analysis of an integrated voice/data cut-through switching network

In this paper, the performance of an integrated voice/data cut-through switching network is studied. We first derive cut-through probabilities of voice and data packets at intermediate nodes. Then, the Laplace transform for the network delay is obtained. According to our numerical results, the cut-through switching method is superior in its delay characteristics to the conventional packet switching3for voice and data in integrated voice/data networks.     

Design of general user interface for automatic service composition

Automatic web service composition provides new value-added services dynamically to compose existing services. Paik proposed logical and physical web service composition and ontologies for this. A useful composer needs well-defined web interface for general users. A general user interface is designed and implemented in this paper. The user interface generates some HTML form based on the ontology and additional HTN ontology.     

基于云计算的电子政务一体化服务平台建设探索

云计算具备共享资源、灵活调度、业务协同、智能可靠等优点,适应电子政务节约化建设、智慧化管理的发展需求。为此,在研究基于云计算的电子政务服务模式的基础上,提出了建设政务云综合服务平台的设想,并具体分析了平台总体框架、功能组成以及建设原则。     

On design and performance evaluation of an integrated SIP and HCoP-B architecture for nested network mobility

This paper proposes a fully-integrated SIP + HCoP-B architecture to provide efficient mobility management of the nested mobile network. It achieves the following merits, which are rare in the literature. First, it reduces network deployment costs by only equipping an integrated SIP mobile server. Second, it supports both SIP-based and non-SIP-based applications. Third, by adopting the analytical model proposed in Mohanty and Akyildiz (2007) [19], mathematical analyses are provided to investigate six performance metrics of SIP + HCoP-B and the other four well-known SIP's over NEMO schemes over the error-prone wireless link. Finally, it is shown that SIP + HCoP-B outperforms these four traditional schemes through intensive simulations.     

网络传感器接口设计与验证

以ADuC812微控制器为核心,依据网络智能传感器接口标准IEEE 1451.2,探索了智能传感器接口模块(STIM)的设计思想与实现方法,用PC机编制程序实现网络匹配处理器(NCAP)的功能,在线存储、修改电子数据表单(TEDS),实现传感器/执行器的即插即用。     

EMS网管北向CORBA接口的设计

CORBA提供面向对象的互操作,作为实现分布管理对象访问的处理方式,是很有应用前景的系统集成标准。在EMS北向CORBA接口功能的基础上提出了接口的总体结构,并详细讨论了总体结构中通道模块和业务模块的设计和实现。系统运行表明,所设计的功能达到了预期要求。