企业文件电子化技术应用与推广

“E -mail”遍布于整个世界 ,就是将信息传递电子化 ,计算机化 ,利用计算机网络技术成为人与人之间沟通的纽带和桥梁。随着计算机网络技术的日益成熟 ,以及各行各业的迅猛普及 ,势必对企业传统管理方式和手段造成冲击 ,建立企业内部网络 ,实现企业内部信息传递的电子化 ,建立企业文件管理网页 ,最终实现无纸办公将是大势所趋     

条形码信息管理系统在生产中的应用

现代化工业大规模生产流水线的生产管理,需要建立统一的信息化管理平台.介绍了利用企业局域网和条码技术对企业的生产管理、物流信息、质量信息等进行采集以及如何建立产品制造档案,实现生产过程中的全面跟踪,通过数据采集完成财务结算、产量统计、质量考核及三包服务等功能.     

VLAN技术简介及其在网络中应用

主要向大家介绍交换机的一个最常见技术应用-VLAN技术,并针对中、小局域网VLAN的网络配置以实例的方式向大家简单介绍其配置方法.     

智能变电站自动化系统网络可靠性分析及优化

为优化智能变电站自动化系统的可靠性,遵循通信网络系统可靠性分析的基本思路,采用可靠性框图分析方法分析计算了影响自动化系统网络可靠性的关键因素,并着重从网络拓扑结构选型、系统的冗余配置方案、网络的管理与维护等方面,提出自动化系统网络可靠性优化策略,以指导和优化系统设计。     

国网重庆电力打造信息通信“云终端”

<正>电力信息通信"云终端"是将电力信息通信存储、计算资源集中于后台软硬件资源池,进行集中管理分配,用户前台应用界面仅保留显示器和网络连接器,用户通过网络(无需PC服务器)对电力信息通信资源进行访问,系统内部任意显示器即可登录用户个人桌面的一种全新绿色办公新方式。近年来,随着国家电网公司电力业务发展扩大,电力信息通信软硬件设施以及海量数据存储资源的急剧增加,企业内部桌面终端涉及的企业信息越来越多,急需一种新型的速度更快、成本更低、安全性更强、管理更便捷的"绿     

网管省集中解决方案与验证

电网信息通信调度集约化工作需要通信调度、检修、方式安排的省公司集中,网管省集中是实现通信调度、检修、方式安排向省公司集中的先决条件。文章提出了一种网管省集中解决方案,该方案通过"网络级—网元级"二层网管监控技术设计了网管监控系统,在此基础上利用现有的硬件设备及华为网络级网管U2100组建了实验平台,实现了地市公司的网管接入,对网元上载、数据库实时同步、业务配置下发及北向接口连通性等关键性能进行了测试,测试结果表明了该方案的有效性。     

工厂空气动力系统节能方法探讨

根据空气动力设备的工作原理和特征 ,从设备选型配置、操作维护到管理方法的改进等方面 ,探讨了生产企业如何对空气动力系统进行节能改善的一些方法     

基于资源整合的虚拟化桌面在电力企业中的应用

针对电力企业办公终端桌面系统管理与维护成本高、信息安全程度低、信息资源分散等问题,提出了将桌面虚拟化技术与信息资源整合理念相结合的电力企业资源整合虚拟化桌面系统方案。企业办公终端桌面系统可以集中进行维护和管理,同时信息资源集中存放在信息中心,信息安全可以得到保障。基于资源整合的虚拟化桌面很好地解决了电力企业桌面系统管理与维护成本高、信息安全程度低、信息资源分散的问题,具有很好的应用和推广价值。     

浅谈企业局域网的安全与中断后恢复

介绍局域网在企业生产经营中安全运行的重要意义,分析了局域网中硬件及软件两方面存在的不安全因素,保证网络运行安全措施及网络的恢复机制。     

甘肃电网协同办公系统开发技术及其效益分析

随着经济发展,跨组织、跨地区、跨网络的办公业务越来越频繁,加大了管理的难度,而协同办公业务应用系统开发技术的发展与创新可帮助企业快速提高办公效率.利用J2EE+Domino+Oracle架构开发的甘肃电网企业协同办公业务应用系统.以知识管理为核心.高度集成RTX系统和Autonomy搜索引擎,实现了消息提醒、实时交流、...     

Electricity used by office equipment and network equipment in the US

In spite of the recent explosive growth in the use of office and network equipment, there has been no recent study (until this one) that estimates in detail how much electricity is consumed by that equipment in the United States.In this study, we examined energy use by office equipment and network equipment at the end of 1999. We classified office equipment into 11 types; for each type we estimated annual energy consumption for residential, commercial, and industrial use by combining estimates of stock, power requirements, usage, and saturation of power management. We also classified network equipment into six types and estimated the annual energy consumption for each type.We found that total direct power use by office and network equipment is about 74 TWh per year, which is about 2% of total electricity use in the US. When electricity used by telecommunications equipment and electronics manufacturing is included, that figure rises to 3% of all electricity use. More than 70% of the 74 TWh/year is dedicated to office equipment for commercial use. We also found that power management currently saves 23 TWh/year, and complete saturation and proper functioning of power management would achieve additional savings of 17 TWh/year. Furthermore, complete saturation of night shutdown for equipment not required to operate at night would reduce power use by an additional 7 TWh/year.Finally, we compared our current estimate with our 1995 forecast for 1999. We found that the total difference between our current estimate and the previous forecast is less than 15% and identified the factors that led to inaccuracies in the previous forecast. We also conducted a sensitivity analysis of the uncertainties in our current forecast and identified the data sets that have the largest impact on our current estimate of energy use.     

单件小批生产企业生产作业计划系统的设计

充分分析了单件小批生产企业的特点，对比了目前比较流行的生产计划的方法，提出了符合单件小批生产企业生产作业管理实际情况的作业计划和控制系统模型，这个模型以网络计划技术支撑，采用了基于BOM／BOP生成产品网络计划，基于网络图的多项目平衡优化，多级网络计划的编制与优化等关键技术，对生产作业计划和控制系统进行了总体设计。     

设备维修外包管理

设备维修外包作为外包的一种具体业务形式,为企业的设备管理提供了新的思路。设备维修外包存在风险,选择好外包业务提供商十分重要,这关系到业务外包效益的高低和管理的成败。为了使业务外包顺利进行,必须把管理和控制贯穿全过程。     

The Executive Information System (EXEC-IS): a local area networkapplication

The development and implementation of an executive information system is described, based on a microcomputer local area network (LAN) and serving the needs of the key managers within a major operating branch of a large electrical utility     

分布式控制系统在垃圾焚烧过程中的应用与设计

提出了将4级分布式控制系统在垃圾焚烧发电过程中的应用研究,通过对垃圾焚烧过程的分析,将整个垃圾焚烧过程分成4个控制子系统,并利用PLC作为设备控制级的主要设备对过程实施控制,提出了利用工业以太网将上位计算机与PLC连接在一起形成过程级监控网络,再将工业以太网与企业网络相连而形成管理级网络的4级分布式自动控制系统。     

USE of the ANOVA approach for sensitive building energy design

The article presents a new approach in which the Analysis Of Variance (ANOVA) is used to identify the design variables that have the most impact on the variation of the building energy performance for a typical office building and to allocate the contribution of each variable to this variation. Moreover, the study addresses an important issue concerning the identification and the setting of a set of simple and concise variables that can be used during the conceptual design stage of office buildings.The analysis shows that the suggested approach could be useful for architects to evaluate the degree to which each design variable contributes to the variability of the building energy performance. Besides, the results may be helpful to support policymakers during the elaboration of energy codes by providing adequate information for the selection and handling of the parameters that control the variability of the energy needs.     

基于零信任框架的能源互联网安全防护架构设计

能源互联网应用大数据、云计算、物联网和人工智能等现代化信息技术,实现电力系统各个环节的万物互联、人机交互。能源互联网建设导致各类终端大规模接入企业网络,企业内外部的业务交互和数据交换更加广泛。为适应这种场景需要,文章通过分析零信任框架,结合能源互联网安全防护的内在性要求,设计了基于零信任的能源互联网安全防护架构,重点从终端接入控制、动态授权管理、统一身份管理、安全作为服务4个方面进行研究,为能源互联网安全防护体系设计提供了新思路、新方法。     

Data network equipment energy use and savings potential in buildings

Network connectivity has become nearly ubiquitous, and the energy use of the equipment required for this connectivity is growing. Network equipment consists of devices that primarily switch and route Internet Protocol (IP) packets from a source to a destination, and this category specifically excludes edge devices like PCs, servers and other sources, and sinks of IP traffic. This paper presents the results of a study of network equipment energy use and includes case studies of networks in a campus, a medium commercial building, and a typical home. The total energy use of network equipment is the product of the stock of equipment in use, the power of each device, and their usage patterns. This information was gathered from market research reports, broadband market penetration studies, field metering, and interviews with network administrators and service providers. We estimate that network equipment in the USA used 18 TWh, or about 1% of building electricity, in 2008 and that consumption is expected to grow at roughly 6% per year to 23 TWh in 2012; world usage in 2008 was 51 TWh. This study shows that office building network switches and residential equipment are the two largest categories of energy use consuming 40% and 30% of the total respectively. We estimate potential energy savings for different scenarios using forecasts of equipment stock and energy use, and savings estimates range from 20% to 50% based on full market penetration of efficient technologies.     

节能型汽车空调压缩机综合试验台的研制

汽车空调压缩机是汽车空调系统的核心,检测其质量性能的设备大多性能单一,且结构和原理基本相似,大多采用第二制冷剂量热器法。基于压缩机排气管道量热器法和制冷剂气体冷却法,结合某企业技术协议的要求研制了性能和耐久性综合试验台。介绍了试验台的总体设计方案和系统组成,并对其工作原理和关键部件的选型设计进行了阐述。该试验台最大特点是将部分零件模块化。与传统的测试设备相比,该试验台便于连续进行测试。该试验台的测试误差均在标准规定的精度范围内,满足了企业的测试要求。研究为其他相似试验台的设计提供了借鉴。     

水泥厂余热利用研究

本文论述了焦作水泥厂中温烟气余热发电方案研究。讨论了设计方案、设备选型并进行了技术经济分析。本文结论对同类型余热利用工程具有参考价值。