变电站运行管理模式优化分析

主要研究变电站运行管理模式优化,对无人值班变电站的运行管理优化,从管理职能划分调整、制度和技术管理等方面进行了讨论,并对超高压变电站的生产指挥中心构建、专业内部结构调整进行了分析,变电站运行管理模式优化对提高供电稳定性和安全性有着重要意义,是电网智能化的重要组成部分。     

辅助系统综合监控平台在智能变电站中的应用

在变电环节,无人或少人值班模式已相当普及,为保障变电站的稳定运行．辅助系统综合监控平台可以满足更多项目需求：在变电站实现安全防范．防止不法分子偷窃、破坏：对变电站设备的运行情况及操作过程实现可视化监控：对变电站设备的运行场地实现环境监控;对变电站功能室大门实现出入口管理;变电站内辅助系统能够实现联动功能：实现与生产系统的联动以及信息一体化系统的互动,对变电站的设备巡检、应急指挥实现可视化监控;根据电网公司技术规范实现多级联网监控。     

500kV智能变电站无人值班技术的应用与实现

文章首先简要阐述了实现500kV变电站无人值班的重要意义,并在此基础上对无人值班技术在500kV智能变电站中的应用进行论述。期望通过本文的研究能够对500kV变电站无人值班模式的早日实现有所帮助。     

综合自动化变电所微机防误功能的分析

随着计算机技术的日趋成熟和无人值班变电站的普及，采用综合自动化实现变电站监控，是当今变电站建设的主流技术。但是这种新技术的广泛使用和无人值班运行模式的开展，给变电站防误闭锁功能带来了一些新的问题，以下就各种综合自动化变电站防误功能的优劣进行讨论。     

计算机及其网络在供电企业中的应用

本文论述了计算机及其网络在供电企业中的应用，包括变电站综合自动化、变电站无人值班调度端监控系统、无人值班变电站的遥视系统、配电网基于GIS的管理信息系统、电业局综合管理信息系统及电网规划DSS系统等。     

一种新型的无人值班变电站综合自动化控制系统

该文提出了一种新型的集散式的无人值班变电站综合自动化控制系统的设计方案。着重讨论了系统的组成原理，并对无人值班的关键问题──远动加以详述，最后概述了人机界面。实际运行表明，该系统自动化程度高，安全可靠，具有较高的性能价格比。     

电力系统集控中心的信息化建设分析

现代电力系统管理中,多数变电站多为无人值班,而集控中心系统则是保障无人值班变电站安全运行的有效途径,在实际应用过程中,要仔细分析其组建方式,结合具体的环境与实际情况,全面分析集控中心的具体功能,进行科学、合理的信息化建设,以保证其作用得以充分的发挥。本文就针对电力系统中集控中心的信息化建设展开讨论。     

三维变电站无人值班智能警卫系统

三维变电站无人值班智能警卫系统,是根据无人值班变电站的特点和安保需求,利用三维平台,建立起来的直观、智能、高效的变电站警卫系统。通过应用该系统,能够代替大部分门岗人员职能,减少变电站门岗人员配置,达到减员增效的管理目标,也使得变电站的安保管理水平达到一个新的阶段。     

新科技下变电运行的安全管理问题

新技术发展带动了变电站运行方式的改革,“无人值班变电所”已经成为一种主流形式。但变电运行中也存在很多问题,做好变电运行的安全工作才能保证电网的安全稳定运行。本为就变电运行的安全管理问题进行探讨,并提出了一些可行性措施。     

变电站监控系统调试中遥信误报的处理

在无人值班变电站监控系统改造设备调试过程中,发现与之接口的保护设备在从新加电后,监控系统有大量误报遥信产生,经过修改接口软件程序和实验,最终解决了问题,修改程序后设备运行稳定,没有发生遥信误报现象。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。