空间信息系统COTS技术下的抗辐射设计

本文在对太空辐射环境分析的基础上,研究了商用现货（COTS）技术下空间信息处理系统的抗辐射设计,提出并实现了基于单粒子闭锁（SEL）辐射效应的解决方案。这种方法可类似地移植应用于航空以及车载领域的嵌入式系统中。     

基于COTS构件组装的系统开发

基于构件的软件开发强调以集成为中心进行系统构造。文章介绍了构件及接口操作．定义了基于构件开发的相关概念，给出了构件配置算法，最后用一个实例说明了基于COTS构件的系统开发过程。     

A methodology for ERP misfit analysis

Commercial off-the-shelf ERP systems have been adopted by many large companies to support their inter- and intra-business processes. Midsize market firms are now also investing their use. However, research has indicated that about three quarters of attempted ERP projects are unsuccessful: a common problem encountered in adopting ERP software has been the issue of fit or alignment.This paper presents an ERP selection methodology, grounded in task-technology fits theory, for measuring, at a high-level, the misfit between ERP candidates and the enterprise's requirements ex-ante implementation. With this approach, organizations can more easily and systematically determine the locations of possible misfit and their degree of importance, thereby understanding the risk in their implementing an ERP. Our research thus contributes practical solutions to the problem of misfit analysis and ERP package selection.     

基于COTS的空间信息处理平台抗辐射关键技术研究

针对空间辐射环境下的单粒子效应,研究了基于FPGA的抗SEU多级容错机制的关键技术,并设计芯片、板级两级监测的抗SEL保护电路;通过在嵌入式空间信息处理平台原型系统中的验证实验,结果表明:设计合理,且有效地提高了系统的抗辐射能力。     

The design of complete systems: Providing human factors guidance for COTS acquisition

In this paper, we describe approaches to provide Human Factors support for the assessment of COTS (commercial off-the-shelf) equipment as part of the MoD acquisition and development processes. Whilst the use of COTS products generally prohibits influence on their design, the design of the socio-technical system into which the product needs to be integrated requires considerable attention. This is especially so when dealing with Human Factors aspects, which are often less tangible than engineering issues, and therefore more difficult to capture in requirements specifications and assessment metrics. We present the development of an assessment tool that aims to capture the breadth of potential Human Factors impacts for the specific requirements of COTS products.     

Error Detection Enhancement in COTS Superscalar Processors with Performance Monitoring Features

Increasing use of commercial off-the-shelf (COTS) superscalar processors in industrial, embedded, and real-time systems necessitates the development of error detection mechanisms for such systems. This paper presents an error detection scheme called Committed Instructions Counting (CIC) to increase error detection in such systems. The scheme uses internal Performance Monitoring features and an external watchdog processor (WDP). The Performance Monitoring features enable counting the number of committed instructions in a program. The scheme is experimentally evaluated on a 32-bit Pentium® processor using software implemented fault injection (SWIFI). A total of 8181 errors were injected into the Pentium® processor. The results show that the error detection coverage varies between 90.92 and 98.41%, for different workloads. To verify the experimental results an analytical evaluation of the coverage is also performed.     

虚拟核心网IMS技术及试点应用

本文针对传统核心网如何演进到NFV技术,以及核心网NFV化存在哪些关键技术。尤其演进到NFV后,能给运营商带来哪些实质性的利益做了总结。同时NFV引入还对传统运维、网管、采购、网络规划等都产生了巨大变化,在引入NFV之前如何提高相关部门的技能水平等。     

NUMA架构的龙芯3A板级设计及工程化技术研究

针对关键应用对信息处理能力提出的性能要求以及国产化需求,在分析龙芯3A处理器架构特点的基础上,设计了基于NUMA并行处理架构的龙芯3A高性能处理模块,并对抗恶劣环境的关键问题进行了分析和设计,解决了散热、电源监控及供电优化、启动速度等问题。通过测试验证,性能可以满足关键应用对信息处理能力的要求,从而有效解决了龙芯3A访存能力有限的问题。同时对SMP和NUMA架构下,龙芯3A处理器CPU数量的增加对访存性能的提升的关系进行了探讨。     

COTS技术在远程技术支持系统中的应用

基于商用现货COTS(Commercial Off—The—Shelf)技术构建了远程技术支持系统。首先选择pcAnywhere作为远程控制软件进行远程计算机监视、控制和操作,选择了Microsoft Portrait软件进行IP地址获取、报告信息及语音通信;然后通过VB语言平台编写胶水代码,应用Windows API函数集成Microsoft Portrait,应用对象链接与嵌入(OLE)自动化技术集成pcAnywhere软件,实现软件绑定。最后叙述了系统远程技术支持的具体步骤。     

基于商业化组件的配电网智能规划平台设计与实现

结合规划领域最新的理论成果,提出了构建集数据管理和智能规划为一体的企业配电网智能规划平台。给出了系统的总体功能、接口、算法和规划流程,并汲取国外大型软件的开发经验,设计了基于商业化组件的软件体系结构,提高了软件的复用率和应用的灵活性。介绍了以数据关系为主线的图模一体化的数据结构和实现方法,保证了拓扑数据的一致性。该软件在Visual C 6.0集成开发环境下,嵌入了地理信息系统(GIS)组件MapX完成了系统的开发。最后以实际规划案例验证了该系统的科学性和实用性。