郑州市供水调度SCADA系统的设计与应用

介绍了郑州市供水调度SCADA系统的结构、功能,以及SCADA系统与水力模型和GIS的集成,并针对调度信息化建设进行了探讨。SCADA系统与水力模型和GIS相结合,能够提高现场实时监测数据的可视化能力,进一步提升调度工作和管网运行管理的效率。     

SCADA系统在郊区供水集约化过程中的应用

结合上海市自来水奉贤有限公司SCADA系统的建设调度,分析了SCADA系统的结构、数据流转过程及系统功能,结合具体应用实例阐述了SCADA系统在郊区供水集约化过程中对调度管理工作的重要作用,并对调度运行管理的发展进行了展望.     

供水调度技术推动企业管理与发展

广州市自来水公司以计算机通信技术为核心的SCADA（Supervisor Control And Data Acquisition）监控与数据采集系统,实现供水生产数据的采集、传输、处理与设备控制功能,是优化调度的技术保障。调度SCADA系统导入一套以设备技术发展为主线的科学管理体系,建立安全运行长效机制,为经济调度节能降耗提供持续有效的技术装备,是供水生产目标管理可持续发展的工作核心。     

天津市二次供水综合管理系统的应用

介绍了天津市二次供水综合管理系统的实施背景、构成以及运行情况。该系统以SCADA系统为主、地理信息标注系统和供水信息管理系统为辅,具有对二次供水泵站进行生产调度、统计分析、管理维护、数据采集、视频监控、故障报警等多种功能。二次供水综合管理系统的应用,实现了二次供水泵站的高效管理,保证了二次供水安全、稳定、可靠运行,取得了良好的经济效益和社会效益。     

“Infranet＋Intranet＋Internet”技术是组建立监控系统的新模式

供水资料的科学管理与信息资源的二次开发是实现水工业信息监控系统的基础，不仅能够提高工作效率、增加供水管理的科学性，还能提高运行管理的准确性和可靠性，为各种优化管理和决策提供支持。而目前水行业普遍采用的SCADA管理系统已远远的不能满足上述要求，在应用的过程中SCADA管理系统主要存在下列问题：     

GPRS技术在SCADA系统中的应用

SCADA是英文Supervisory Control and Data Acquistion的缩写,意即“监视控制和数据采集系统”,该系统被广泛应用于供水、供电、燃气、油田等行业,主要完成数据的采集控制和远程传输。目前国内SCADA系统较普遍采用230MHZ频段的数传电台作为传输信道。     

SCADA系统在生产调度管理中的发展与应用

1．简介 上海市自来水市南有限公司供水规模228万立方米／日，供水面积达312平方公里，供应人口达320万。 上世纪90年代原上海市自来水公司就建立了SCADA系统，由大地公司使用Intouch软件开发，通讯工作频率为230MHz，俗称230兆管网测压系统。1997年SCADA系统利用世界银行贷款项目第25标由英国SERCK公司进一步开发。     

SCADA系统通信的综合改善

SCADA是监测控制和数据采集系统,目前被广泛应用于供水、供电、燃气、油田等行业,主要功能是完成数据的采集和远程传输,目的是为调度系统提供丰富而可利用的数据资源,更好地实现调度。SCADA系统功能的实现是以数据为中心,以获取完整、可靠、准确数据为目的,同时以良好通信质量为基础。     

基于无线虚拟总线技术的管网SCADA系统的实现

管网 SCADA (Supervisory Control And Data Acquisition)系统即管网数据采集与监视控制系统,主要应用于燃气、热力、电力、供水、石油、化工等公用事业,实现其管网运行和调度管理的自动化与现代化.本文探讨了无线虚拟总线技术应用于管网SCADA系统的合理性、经济性和先进性,并论述了系统的实现方法.     

供水SCADA系统的研究与建立

介绍了天津港保税区供水SCADA系统的建立过程，对该系统的结构、通讯方式、监控点位置和数据库等进行了设计。根据数据库的信息，重点对系统内水泵与闸阀的控制、供水管网中自控调节阀的控制及布置原则进行了研究。     

谈GIS在城市供水管网信息资源管理中的应用

通过对GIS技术发展概况的论述,介绍了GIS技术在供水行业的应用现状,系统地分析了GIS技术在城市供水管网中的基本功能与作用,并指出供水管网系统是GIS的一个较新的应用领域,进一步开发应用的前景十分广阔.     

城市供水系统几个新技术的应用及发展

就城市供水系统近年来电气与自控几个新技术(包括变配电所综合自动化、数字视频监控系统、GPRS远程数据采集检测系统)的应用及发展情况进行一些讨论,指出基于工业以太网技术的PLC PC自控网络结构与监控一体化,是供水行业自动化的发展趋势。     

什么样的IDC机房值得客户信赖

分析IDC机房对市电电源、自备应急电源、UPS电源系统、服务器精密配电系统、空气调节系统、防雷接地系统、IDC基础设施管理系统等基础设施的可用性需求,以及对网络等级、出口带宽的需求,探讨对IDC机房的合理选择。     

Integrated performance assessment model for water distribution networks

The American infrastructure report card in 2013 rated the US water system infrastructure with grade of ‘D’. The Canadian infrastructure report card in 2012 stated that around 15.4% of Canada’s water infrastructure has a condition of fair to very poor. Thus, there is a critical need to develop efficient inspection, maintenance and rehabilitation plans for water distribution networks. However, such plans require an assessment tool to evaluate the performance and condition of water distribution networks. Therefore, the main purpose of this paper is to develop an integrated performance assessment model for water distribution networks. Two modules were developed to assess the performance of water pipelines and accessories, respectively. A third module was developed to assess the performance of water segments that includes pipelines and accessories. Moreover, a fourth module was built to assess the performance of each sub-network and the entire network based on the segments’ connection type using a reliability-based approach. To assess the performance of the water distribution network, the critical factors affecting its pipelines and accessories were identified and studied. The fuzzy analytic network process technique was used to obtain the importance weights of the identified factors.     

某4S店室内给水消防管道系统设计介绍

4S店是集汽车销售、维修、配件和信息服务为一体的销售店。因其功能的复杂性和特殊性,使其给水和消防管道设计上有一些自己的特点。根据笔者长期从事设计工作的经验,结合某4S店的实例,对其设计特点进行了介绍。     

胜利油田物探院低压配电系统改造

介绍一种数字化的低压智能配电系统在配电网络改造系统中的实际应用;详细介绍了配电监控系统构成及其主要功能。     

Framework for Quality Improvement of Infrastructure Projects

In order to achieve high quality that not only gives acceptable return value to society but also satisfies the needs of all the stakeholders of infrastructure projects, comprehensive understanding of issues pertaining to the quality of the project is needed. The aim of this study is to provide an overview the most common procurement methods used in constructing infrastructure transport projects and analyze how these methods contribute to the desired quality of the final product in relation to client competence. An on-line survey of construction actors was carried out to ascertain quality level of Swedish infrastructure transport projects and determinant factors of quality problems. An equal number of respondents indicated that the quality of infrastructure projects has either increased or remained same level over the past twenty years. Respondents also pointed out lack of client competence that is vital in realizing the desired quality level through proper procurement, monitoring and evaluation procedures. Public clients heavily rely on traditional design-build procurement that requires considerable client involvement of a project. Thus, the association of quality problems and lack of client competence may not be a mere coincidence but an overlooked outcome of current situation.     

基于虚拟现实平台的校园基建信息管理系统

对基于虚拟现实平台的校园基建信息管理系统作了简要介绍,以山东建筑大学数字校园为例,阐述了该系统的主要功能以及强大的可扩展性,通过数字化校园基建信息管理系统的应用,从而为基建工作提供了更为广阔的工作与展示平台。     

系统集成常见问题及相关建议

集成是解决建筑弱电子系统之间互操作的必由之路,但如何用简便、高效的方法实现集成,进而得到行业的公认,则是设计单位、系统集成商、设备供应商乃至建筑业主多年探讨和实践、至今仍悬而未决的问题。     

Service tunnels in newly built residential areas

The extension of newly built towns, particularly in the residential sector, requires supplying the new areas with an underground infrastructure network. The urban profile and the technical solutions applied, as well as the assumed conceptions of the infrastructure installation, will determine the future operating costs of the infrastructure network, its utilization value, and finally, the investment expenditures. An analysis of the existing residential developments indicates that service tunnels are a solution that offers the greatest advantages in serviceability, even when the construction costs are higher in comparison with more conventional solutions. This paper discusses some aspects of service tunnel design that integrates the underground infrastructure network for a new building development. The connections of the tunnels with other elements of the development's technical infrastructure are described, and the relationships between the service tunnel, the communication system, and the building development itself are explored. The basic problems arising from laying the service gallery network in the basements of buildings are considered, and potential solutions related to building functions and construction methods are analyzed.