共查询到19条相似文献,搜索用时 653 毫秒
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以GIS空间数据的在线安全分发为出发点,结合空间数据数字水印技术,构建基于SuperMap IS.NET的空间数据安全分发系统。该系统能提供空间数据实时在线的安全分发服务及添加数字水印服务,实现对分发出去的空间数据追踪版权,从而解决闲置的海量空间数据与GIS应用数据缺乏之间的矛盾,促进地理信息产业的快速发展及GIS应用的广泛普及。 相似文献
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在航空运输系统中,空中交通管理肩负着维护飞行秩序、监督飞行活动、保证空中交通安全的重要职责。近年来GIS技术的应用发展很快.在多个领域取得了成功的应用。在民航空管系统中,地理信息与空管信息密不可分,是民航空管系统中不可缺少的一部分。本文利用地理信息系统(GIS)对地形数据、遥感数据、地物点、航路、空域、作业区等进行数字化处理,并基于地理信息系统在新疆民航空管系统实现相关功能,如GIS展示、数据交互、测量分析、地图交互和观察模式等。该系统的的建成将促进新疆空管保障能力显著提升,保证空中交通更加安全顺畅。 相似文献
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阐述了城市街道级GIS的概念及意义,并对城市街道级GIS的设计与实现方法进行研究,特别是城市大比例尺数据的分类、组织。以泰安市街道级GIS应用系统为例,详细阐述了街道级GIS设计的数据组织与管理、总体功能框架、系统功能模块等,解决了公交换乘、多媒体信息组织与管理等问题。 相似文献
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计算机技术、无线网络通信飞速发展与大量移动设备的普及,促使移动GIS技术的产生与发展。本文介绍了移动GIS的概念、特点,以及系统的关键技术,并采用面向对象的设计方法,设计并实现了移动GIS地图引擎,并在此基础上实现了POI查询、驾车导航等功能,为通用的移动GIS地图引擎的应用开发提供了一个切实可行的方案。 相似文献
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针对天津市深基坑工程质量安全信息化管理的迫切需求,利用GIS及网络视频、Web地图API等技术进行综合设计,开发出了天津市深基坑监测信息管理系统,实现了基坑工程信息管理、监测数据管理、监测数据自动分析与预警提示、监测专业图表曲线的生成、视频实时监控等功能。系统的设计与实现能够使基坑工程相关单位及时、有效、便捷地获得基坑监测信息,同时对天津市建筑工程质量安全监管部门监管工作的信息化开展有着重要意义。 相似文献
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以赵官井田首采面13煤层底板奥灰为研究对象,运用GIS和多源信息复合技术对其进行了突水灾害预测预报研究:即以GIS的基本功能为工具,在系统分析底板突水机理基础上,提出控制13煤层底板奥灰突水的主要因素;将已知的每个因素编制一张专题信息图,并生成一个信息存储层,经编辑后,先做单因素分析;然后进行各主要控制因素的信息配准复合处理.形成一个复合叠加的新的信息存储层;最后构建底板突水灾害GIS数学模型,确定煤层底板突水灾害模式,对奥灰进行突水危险程度分区,从而为奥灰突水灾害的预测预报提供依据,对矿井的安全生产具有重要的指导作用和现实意义。 相似文献
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水利信息系统中的GIS技术 总被引:2,自引:0,他引:2
阐述了一种新的GIS理论成果:大型GIS与数字地球的空间数学基础理论,该理论克服了传统空间数学基础理论的不足。以该理论为理论基础并结合水利信息系统的实际需求运用GIS技术支持下矢栅结合的技术,提出了将数字栅格地图(DRG)作为专业信息系统的参考背景,用户关心的专业实体适时标注的防汛信息系统建设技术路线,该技术路线具有良好的实施前景。同时本文就系统中若干关键技术的设计与实现做了详细阐述。 相似文献
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针对自来水管线管理的现状,提出了基于物联网和GIS技术的自来水管线管理信息系统的概念,介绍了系统的总体架构、主要功能模块及关键技术,并重点介绍了GIS技术和物联网技术在管道压力和流量监控上的重要应用。 相似文献
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H. Gonca Coskun Ozlem Gulergun Levent Yilmaz 《International Journal of Applied Earth Observation and Geoinformation》2006
In this study, remote sensing (RS) with computer-based geographic information systems (GIS) techniques are used as a tool for monitoring the water basin area and water quality in Istanbul's relatively less polluted and comparatively less destroyed catchment of the metropolis drinking water dam reservoir named Terkos. It is necessary to work with recent data to be able to identify the effects of urbanization on the water quality of the Terkos dam catchment area that supplies drinking water to the metropolis. RS is an important tool to monitor water quality and urban terrain. For this aim, a project has been initiated at the Technical University Remote Sensing Laboratory, under the Istanbul Water and Sewerage Administration (ISKI) sponsorship in Istanbul. The project uses SPOT-PAN, XS and IRS-1C/D PAN and satellite data of 1993 and 2000 for urban analysis and Landsat-TM and LISS-III satellite data of 1992 and 2000 for water quality. For calibration and validation, ground truth samples are collected from the experimental area. The RS data was converted into the UTM coordinate system and image enhancement and classification techniques are used. Raster data is converted to vector data to assess the study area for analyzing in GIS for the purpose of planning and decision-making on protected water basin zones. As a result of monitoring land use and water quality changes, recommendations are made for planning and management of the protected environment of the Terkos catchment protected area. Measuring land use change is a very important issue for controlling the future development of the basin, GIS techniques are performed and results are illustrated in established models on the four protected zones of Terkos water basin. 相似文献
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A. Geetha Selvarani G. Maheswaran K. Elangovan 《Journal of the Indian Society of Remote Sensing》2017,45(1):67-77
The water is a nature’s valuable gift to all life forms. Water quality and quantity plays a major role for the growth and development of community. Both natural and human factors influence the quality and quantity of water source. Depending upon the quality and quantity of groundwater it can be used for various purposes, such as drinking, agricultural and industrial. Due to revolution in industries and various anthropogenic sources in the past decades, groundwater has been polluted and depleted. Remote sensing and Geographical Information System (GIS) has become one of the leading tools in the field of hydrogeological science, which helps in assessing, monitoring and conserving groundwater resources. GIS technology provides suitable alternatives for efficient management of large and complex databases. In recent years, the increasing use of satellite remote sensing data has made it easier to define the spatial distribution of different groundwater prospect classes on the basis of geomorphology and other associated parameters. Analysis of remotely sensed data along with Survey of India(SOI) topographical sheets and collateral information with necessary field checks helps in generating the base line information for artificial recharge. The artificial recharge sites were identified by integrating thematic maps of geology, geomorphology, slope, drainage density and lineament density of the study area. The study focuses on the development of remote sensing and GIS based analysis and methodology for identifying artificial recharge studies in Noyyal river basin. 相似文献
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为了方便社区日常管理,提高工作效率,增强社区管理工作的社会公共服务能力和应急反应能力,基于VC++6.0开发环境、MapX5.0组件技术和数据库技术,将GIS作为社区综合信息定位和整合的平台,设计了社区综合信息管理系统。最后以某社区的安检、计生、税收业务等综合信息作为实例数据,实现了该社区综合信息的可视化显示、空间查询及统计分析,验证了系统的可行性和高效性,为社区资源共享和信息服务搭建了平台。 相似文献