探讨如何利用技术手段提高节约用电

电力是一种可以方便分配和使用的二次能源，本文主要讲述了如何利用技术手段提高节约用电。     

工业企业供用电系统节能分析

我国工业企业用电比重大,电力能源利用效率低,节约用电的潜力大。本文从工业企业节能角度出发,介绍了工业企业供用电的特点,分析了当前我国工业行业供用电能中存在的配电网电能损耗严重、用电设备效率低、企业电气节能管理水平落后等问题,阐述了实现工业企业电能节约的必要性,并对工业企业供用电节能的关键技术进行了综述。     

高低压配电间监测系统研制

大中型企业配电间担负着整个企业的电力管理、分配任务.配电间管理的自动化对企业搞好计划用电、节约用电有重要的意义.本文介绍了一个高低压配电问监测系统的设计及实现方案.本系统采用了两级计算机管理,可对配电间的全部电力参数进行检测、报警、数据统计、报表打印.本系统可用于大中型企业配电间的技术更新改造.     

基于灰狼算法的电力能源区块链分块优化仿真北大核心

采用目前方法对电力能源区块链进行优化时,无法提高区块链的出块速度,导致方法存在配置容量低和收益率低的问题。提出基于跨链技术的电力能源区块链优化方法,在Cosmos平台的基础上设计跨链方案,对区块链进行划分,提高区块链的出块速度,将最小储能成本和碳排放成本作为优化目标,建立电力能源区块链优化模型,通过参数控制和种群初始化对灰狼算法进行改进,利用改进后的灰狼算法求解电力能源区块链优化模型,完成电力能源区块链的优化。仿真结果表明,所提方法的配置容量高、收益率高。     

供电公司线损降损技术

随着社会的快速发展,经济水平的不断提升,电力需求不断增加,线损问题是直接影响电力工程稳健运行的关键,供电公司的线损问题是在日厂生活中必不可少的损耗,实施线损问题的管理与实施能够很大程度的提升供电公司的经济效益的运行,提升电力运行的速度,做好线损问题的管理还能更好的实现电力能源的可持续发展,减少电力设施的浪费。由于电网的安装区域较为广泛,所以实施线损问题管理也是一个具备一定困难的事情,本文主要从供电公司的线损降损的技术角度开展分析,实现电力能源的节约,促进经济运行。     

用电信息采集系统采集率问题分析及对策研究

电力资源自发明以来就被成功的应用到生产生活的各个领域,并成为了我国工业农业生产、人民工作休息的重要能源。用电信息是通过变压器和终端信息采集器通过对用户用电信息的采集,达到合理控制电量、防止偷电窃电和疏导用电高低峰期,到达节约用电,对用电量进行实时监控的目的。因此,用电信息采集系统的采集率是电力企业十分关注的一项问题,如何不断改善用电系统,提高采集率一直是用电企业研究的课题。对于用电信息采集系统采集率问题的分析和对策研究,本文做简要探讨。     

基于低秩模型的电力能源大数据异常修正方法研究

传统的电力能源大数据异常修正方法存在搜索次数过多问题.会造成异常数据辨识结果异常、修正结果不准确。为此,引入低秩模型.改善以上问题。采用低秩模型处理电力能源数据样本.去除样本数据噪声;在离线模式下,通过训练支持向量机对数据样本进行聚类;在联机模式下,利用滑动窗口辨识异常数据;针对单个或多个不相关的异常数据.依据基尔霍夫电流定律完成修正。试验结果表明,与以往的大数据修正方法相比,设计的基于低秩模型的电力能源大数据异常修正方法残差值更低,并且电力负荷修正后.与实际负荷相符。     

短暂一小时与永久智能电陬

比之节约电力,短暂的地球一小时活动更像是形式上的呼吁和感召,电力能源如何在网络时代被最大程度利用？如何让电力能源的利用真正“随需应变”？智能电网或许能给我们这个愿望一个答案。     

基于虚拟机实时迁移的绿色云计算及其技术实现

在云计算中,大量的服务器要消耗巨大的电力,如何让云计算更加绿色是人们日益关注的问题。使用绿色能源是解决这一问题的有效手段,但绿色能源供电具有一定的波动性,这给绿色能源在云计算的广泛应用带来了一定的限制。利用虚拟机的实时迁移技术实现绿色能源供能的云计算网络的全天候工作,并给出利用该方案搭建绿色之星网络云计算节点的技术实现说明。     

多机通信在电力负控管理系统中的实现

电力负控管理系统为我们科学用电、节约用电提供了一种有效管理手段。在该系统中，监控机负责运行负控管理软件以完成用电的监控管理；前置机运行通信软件，负责所有监控机与远程控电设备的通信。如何设计并实现监控机与前置机之间通信以完成整个电力管理系统的正常运转，已成为整个系统的核心技术之一。     

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。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

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.     

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。     

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.     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

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     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.