三维智慧管线综合管理系统关键技术研究——以山东省禹城市为例

针对二维地下管网资料图档信息不全、现势性差、精度不高、管理缺位等问题,本文提出了建设三维智慧管线综合管理系统来反映地下管网空间位置关系,构建集管网数据动态更新、三维综合应用和信息共享共建于一体的GIS综合管理系统。以山东省禹城市为例,对三维智慧管线综合管理系统的总体架构、系统数据库及功能设计进行了介绍,重点探讨了系统建设中应用到的基于skyline的二三维一体可视化、基于管线全生命周期的数据动态管理更新、基于物联网的智能传感与实时监控三项关键技术,解决了管线二三维一体可视化、数据动态管理更新以及后期运维管理的相关问题,可为其他城市地下管线管理系统的建设提供参考。     

基于SVG和Hibernate的地下管网图形显示

对传统的网络地图发布方式进行分析,介绍了一种使用SVG技术来构建地下管网图的有效方法.与栅格图片相比,SVG应用于网络地图,可以减轻网络和服务器上的负担.为了共享已有的地下管网数据,描述了一个基于Hibernate技术的实现框架.     

地下管网BIM数据一体化处理平台研发与应用

"数字中国、智慧社会"战略成为推动数字经济、智慧城市建设及其可持续化发展的重要途径。在此背景下,"智慧管网"的建设成为智慧市政建设中的重中之重。利用BIM技术研发地下管网数据一体化处理平台,在数据获取阶段即可建立三维可视化模型,不仅有助于开展规划设计应用,还可以将地下管网建设各阶段的信息纳入一体化运行。通过对管线数据的获取、规划设计及在市政建设阶段的实践应用证明:该方法不仅降低了规划设计的时间和成本,提高了建设管理阶段的效率,而且改进了传统规划设计理念,对地下管线规划设计的BIM应用研究起到了探索和引领的作用。     

基于多传感器数据融合的供热管网泄漏检测技术

传统的管网泄漏检测系统智能化程度较低,使用单一传感器信号,容易引起泄漏误报和漏报.采用多传感器(包括负压波、流量等)获得供热管网多信号参数,提出基于证据理论的多传感器数据融合算法,综合考虑多泄漏检测信息,将管网泄漏检测多信号进行数据融合,得出管网泄漏判断,建立基于多传感器数据融合的供热管网泄漏检测软硬件系统.结果表明:...     

重整旗鼓再上路——河南省煤田地质局二队寻求城市管网探测发展之路

<正>近年来,地勘市场形势急转直下,地勘单位生存危机四伏,转型发展成为必然趋势。如何转?转向哪里?经过市场调研,河南省煤田地质局二队决定在城市地下管网探测领域寻求发展之路。地下管网探测主要是查明地下管网的平面位置、走向、埋深,并编绘地下管线图,为城市建设提供可靠信息数据。     

北京市地下管网图形数据库系统

北京市测绘设计研究院研制的《北京市地下管网图形数据库系统》,是北京市"八.五" 重点攻关项目,是一项复杂的、工作量巨大的系统工程。1995年底基本完成了项目的任务和目标。系统包括地下管网子系统、地形图子系统、规划道路子系统、规划拨地子系统、控制网子系统和综合用户管理与服务等。该系统输入综合地下管网信息种类22种,总长度3200公里,坐标点数87200个,是一个较完整的地下管网图形数据库系统。     

城市应急管理GIS模型与算法应用——以广州大学城为例

随着城市建设的快速发展,各类危及国家和人民群众生命财产安全的突发性事故灾害时有发生.因此,为应对城市各种重大突发事件,城市必须建立一种应急机制或综合的应急管理信息系统.管道分析是GIS技术在城市应急管理模型中的具体应用,利用城市应急管理系统对地下网管进行综合管理,可以将管线信息有序的存入计算机管理系统,实现数据的更新和资源共享.本文以广州大学城管道数据为数据研究基础,结合国内外管网数据模型,在先前开发完成的广州大学城可视化平台基础上加入横断面分析、垂距分析和爆管分析三个分析模块,对管网模型进行了算法改进并编程进行了技术实现,这三个功能模块可以直观地让管理员清晰地了解地下管线的走向和它们之间的空间关系,方便管理各种事务,防止和控制突发事件的发生,尽可能地减少灾害的影响范围.这三个功能可以应用于管道设计、铺设、维修等工作,对社会的经济发展和建设起着保障的作用.     

基于GIS和物联网技术的基础设施管理信息系统

设计了一种基于GIS和物联网技术的基础设施管理信息系统,它以GIS为基础,进行各种基础设施数据的采集、建库、管理与分析.辅以物联网的核心技术RFlD(射频识别)进行基础设施的精确识别与定位,完成数据的快速采集与更新.该系统可以充分发挥GIS空间数据表达分析能力强和RFID无线识别的优势,显著提高基础设施管理与维护工作的效率,在城市基础设施管理、道路基础设施管理及地下管网管理等领域具有重要的应用价值.     

苏州市自来水公司供水管网地理信息系统介绍

一、概况近些年来,随着苏州城市建设的高速发展,自来水管网及其附属设施发生了巨大的变化,产生了大量新建、改建、扩建管线,如何合理地规划、设计、改造以及更新管网设施,实时更新已有的管网数据库,保证管网数据的实时性是一个迫在眉睫的问题。苏州市自来水公司为促进管网及其附属设备的科学化管理,决定建立苏州市自来水公司供水管网管理信息系统。     

省级海洋动力环境监测分布式数据仓库的设计和构建

建立分布式的数据仓库系统能够满足分布式的大数据量数据管理和多层次决策支持的数据要求,本文探讨了数据仓库分布与集中的利弊,提出了建立省级海洋动力环境分布式数据仓库的体系结构,分析了数据仓库的元数据和系统的开发模式.     

Thermohaline structure inhomogeneity associated with polynia at the northern margin of Emery Ice-shelf

Based on the hydrographic data in austral summer during the 22nd Antarctic Expedition of China(2005/2006),some features can be found about the northern margin of Emery ice shelf as follows.The heat content in the surface layer(0-50 m) at the eastern end and the western end of the ice-shelf margin is much higher than that at the middle.The upper mixing-layer depth and the seasonal thermocline depth at the middle of the ice-shelf northern margin are much shallower than those at the both ends.However there is much less difference between the middle and the ends in the bottom layer.The remote sensing photos show that the inhomogeneity in the surface-layer water is closely related to the spatial distribution of the floes and polynia in the area.     

Phylogenetic analysis of cultivable bacteria isolated from Arctic sea-ice

Phylogenetic analysis based on 16S rDNA of 8 strains of cultivable bacteria isolated from Arctic sea-ice was studied.The results showed that strain BJ1 belonged to genus Planococcus,which was a genus of low mole percent G C gram-positive bacteria;strain BJ6 belonged to genus Burkholderia of β-proteobacteria and the rest 6 strain all belonged to γ-proteobacteria,of which strain BJ8 was a species of Pseudoalteromonas,strain BJ2-BJ5 and BJ7 were members of genus Psychrobacter.Phylogenetic analysis also indicated that bacteria of genus Psychrobacter of the isolates formed a relatively independent phylogenetic cluster in comparison with other bacteria belonged to genus Psychrobacter.     

Information for authors

正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprchensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose is to publish achievements in fundamental research,applied     

Advances in Polar Science CONTENTS(Volume 25,2014)

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Guide to Authors： Journal of Mountain Science

<正>AIMS AND SCOPE(Editorial Policy)The Journal of Mountain Science(JMS)is devoted to mountains and their surrounding lowlands-ecoregions of particular global importance,with a particular emphasis on the important highlands/mountains in the world,such as the Tibetan Plateau,the Himalayas,the Alps,the Andes,the Rockies and many other mountain ranges of our planet.     

Journal of Mountain Science(JMS)

<正>The Journal of Mountain Science(JMS),founded in2004,is an international English-language journal on mountain sciences.JMS is supervised by the Chinese Academy of Sciences(CAS),sponsored by the Chengdu Institute of Mountain Hazards and Environment,CAS,published by Science Press China,and distributed by Springer exclusively throughout the world(excluding Mainland China).The JMS is published bimonthly,fulltexted in SpringerLink and CNKI,indexed/abstracted by     

Relationship of Arctic sea ice and Northern Hemispheric 500 hPa Polar vortices

Using the NCEP/NCAR reanalysis monthly 500 hPa height data on a 2.5 latitude-longitude grid and 1°×1° sea ice data,the polar vortex area,intensity index and arctic sea ice area index are calculated respectively,and the meridional distribution,period variation and the abrupts in the long range trend are analyzed to study their relationship.The results show that the meridional distribution of sea ice and polar vortex h-ave distinctive difference,the relative positions of them are different in the eastern and western hemispheres,and exept they have periods of 4 months,quasi half year,quasi year,4-5 years and 10 years commonly,and each of them has its own respective variation as well.The sea ice area is decreasing apparently since 1980's,so is the polar vortex area,but their abrupt changge time are different totally.The area of sea ice and polar vortex has prominent positive correlation,but the relationship of sea ice intensity,polar vortex intensity,polar vortex area is complicated.     

Author Index for Journal of Mountain Science Volume 11,2014,pp 1-1656

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Information for Authors

<正>The Journal of Ocean University of China(Oceanic and Coastal Sea Research)is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the publication of the theoretical and applied research