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本文选择新疆石河子市为研究区，针对干旱半干旱地区水土资源综合管理的实际需要，详细讨论了基于遥感与GIS的干旱半干旱区域水土资源综合管理系统(ILWARMS)的设计思想、目标、结构与功能及系统开发中的关键技术，并实现了石河予市ILWAMS系统，为石河子市水土资源的合理利用提供了科学依据。研究表明。ILWAMS系统在我国干旱半干旱地区水土资源管理中具有广泛的应用前景。 相似文献
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An integrated intelligent management is presented to help organizations manage many heterogeneous resources in their information system. A general architecture of management for information system reliability is proposed, and the architecture from two aspects, process model and hierarchical model, described. Data mining techniques are used in data analysis. A data analysis system applicable to real-time data analysis is developed by improved data mining on the critical processes. The framework of the integrated management for information system reliability based on real-time data mining is illustrated, and the development of integrated and intelligent management of information system discussed. 相似文献
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The theory and method of system integration for the real-time monitoring of core rock-fill dam filling con- struction quality are studied in this paper. First, the importance analysis of system integration factors is carried out with the analytic hierarchy process. Then, according to the analysis result of integration factors, the conceptual model of system integration is built based on function integration, index integration, technology integration and information integration, the index structure of core rock-fill dam filling construction quality control is constructed and the method of function integration and technology integration is studied. The mathematical model of process monitoring is built according to monitoring objective, process and indexes. Research results have been applied in Nuozhadu core rock-fill dam construction management, realizing system integration through building appropriate monitoring work flow and comprehensive information platform of digital dam. 相似文献
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提出了构建集装箱港口多式作业系统的分布式仿真模型的建模方法,阐述了分布式仿真建模中系统的分解问题以及各子模型整合过程中数据的交互一致性等关键问题。在分析系统作业活动的基础上,采用解释结构模型原理对系统进行分解,在此基础上,设计仿真联邦及其成员、联邦对象模型、联邦成员间的交互关系和作业时序等,并基于高层体系结构平台HLA实现了仿真模型。 相似文献
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Quality function development (QFD) matrix was introduced as a tool to measure the quality management performance of contractors. Engineering quality, quality management system components, and their relationship were defined. An integrated engineering quality system was decomposed into seven factors and the quality management system was composed of eight factors. Importance weights of all factors and their relationship point were acquired by questionnaires and interviews. Then, QFD matrix was formulated and the calculating process was proposed. This model was verified on a case study. The result shows that it is useful for contractor in benchmarking themselves and invaluable for owners in the process of deciding contractor. 相似文献
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分析了现有交警应急指挥系统的不足,提出通过建立基于GIS(地理信息系统)的交通管理综合应急指挥系统来有效地统一存储、组织、处理各类交通管理基础数据、交通管理专业数据、警力数据、交通事故数据、治安数据,甚至火灾数据,并将其可视化。对该应急系统的功能、系统数据管理、基于GIS平台的开发模式进行了分析和说明。 相似文献
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Biological early warning and emergency management support system for water pollution accident 总被引：1，自引：0，他引：1
Water pollution accidents such as chemical spill and toxicants leach have become a serious issue in the world, which brings great threats to the aquatic ecosystem and drinking water safety. To detect unknown pollutions in time and take proper emergency actions, this study developed a system which integrated an online intelligent water quality monitoring device with a high efficient water quality model. The device is based on water quality probes and biological sensors which use fish motion as indicator. The numerical model is a combination of Euler and Lagrangian approaches. Finite element method is applied to simulate the flow field in an unstructured grid, and the pollutant be- haviours are traced through particle tracking. Oracle is used to manage the basic and monitoring data, and ArcSDE as well as ArcIMS technologies are applied to make the system WebGIS-based so as to improve the data receiving and dispatching efficiency. The developed system has been successfully operated in Douhe Reservoir and Taihu Lake, China, where drinking water intakes are installed. It is seen from the applications that the online intelligent water qual- ity monitoring and emergency support system can be of great support to emergency management. 相似文献
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Artificial neural network modeling of water quality of the Yangtze River system: a case study in reaches crossing the city of Chongqing 总被引：2，自引：0，他引：2
An effective approach for describing complicated water quality processes is very important for river water quality management. We built two artificial neural network （ANN） models, a feed-forward back-propagation （BP） model and a radial basis function （RBF） model, to simulate the water quality of the Yangtze and Jialing Rivers in reaches crossing the city of Chongqing, P. R. China. Our models used the historical monitoring data of biological oxygen demand, dissolved oxygen, ammonia, oil and volatile phenolic compounds. Comparison with the one-dimensional traditional water quality model suggest that both BP and RBF models are superior; their higher accuracy and better goodness-of-fit indicate that the ANN calculation of water quality agrees better with measurement. It is demonstrated that ANN modeling can be a tool for estimating the water quality of the Yangtze River. Of the two ANN models, the RBF model calculates with a smaller mean error, but a larger root mean square error. More effort to identify out the causes of these differences would help optimize the structures of neural network water-quality models. 相似文献
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石少敏 《陕西教育学院学报》2011,27(3):89-93
数据质量在信息管理系统中具有重要意义。然而,由于用户拼写、录入、系统升级等原因导致各种数据质量问题的出现。数据清洗的目的就是检测出脏数据并修复它们。而当前的清洗工具缺乏灵活性和扩展性,基于此,本文提出了一个基于规则和数据学习的通用清洗模型。模型实现了动态规则学习和动态数据学习等关键技术。通过规则匹配和反馈学习过程实现了动态清洗规则最佳选择;通过字段学习和元表学习过程实现了动态数据的初始化。实验证明,应用该模型保证了动态数据的质量,提高了当前清洗工具的灵活性和扩展性。 相似文献
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设计了膜生物反应器 (MBR)与粉末活性炭 (PAC)联合使用的膜组合工艺 (PAC MBR)处理微污染地表水 ,并用分子量分析方法来考察PAC MBR组合工艺及各单元工艺对有机物的去除效果 .分析结果表明 ,由于原水中的小分子有机物难生物降解 ,该工艺出水有机物集中在小于 1k的分子量区间内 ,活性炭的投加能显著提高这部分有机物的去除率 .试验证明 ,PAC MBR工艺中生物处理与活性炭吸附互相促进 ,在稳定运行阶段对CODMn、UV2 54 、UV4 10 和氨氮的去除率分别达到 70 %、70 %、10 0 %和 92 % . 相似文献
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基于UML系统建模的研究与实践 总被引：1，自引：1，他引：0
赵楠楠 《内江师范学院学报》2009,24(4):67-70
统一建模语言（UML）是面向对象分析和设计过程中重要的建模工具．以高校学生成绩管理系统为例。基于UML对系统进行较为完整的建模,建立了包括用例图、类图、顺序图、状态图、活动图、部署图的系统静态结构模型、动态行为模型和物理模型,使系统具备实用性、规范性和有效性． 相似文献
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电力GIS系统中电力设施图形表达 总被引：1，自引：0，他引：1
张立 《深圳职业技术学院学报》2006,5(4):27-30
在电力GIS系统项目实施过程中存在着诸如地理信息与电力信息结合不紧密、数据量过大致使系统效率降低等问题。引发这些问题的根源在于电力GIS系统中图形数据的表达和组织上存在某种矛盾。本文主要探讨了电力GIS系统中电力设施图形表达上的2大难点问题,即电力线路与开关型电力设备(如杆上开关)的图形表达问题,并针对电力拓扑关系的表达提出了图形拓扑法和拓扑表法2种实现方式。 相似文献
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GIS与MIS无缝集成的框架研究 总被引：2，自引：0，他引：2
针对GIS与MIS两大系统的集成框架，本文从设计模式的角度提出了基于组件工厂的框架设计；进而从框架体系及集成理论、GSQL模板以及行业模型集成三个方面介绍了系统集成。上述方法及技术已经在大型国产GIS软件——织女星大型灌区地理信息系统VegaIGIs中得到实现，解决了大型软件开发及海量数据处理中遇到的集成问题。 相似文献
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研究了基于CityGML的多层次细节3D城市模型快速建模方法,并将其结合到3DUGIS中用于数字城市建设。建模过程中考虑空间关系、拓扑关系和语义信息。建模过程自动化程度高,能够在三维空间直接进行空间分析,方便海量数据的交换与数据挖掘。并给出了上海世博园区三维信息系统结合具体应用案例。 相似文献
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为进一步提升我国船舶制造企业生产管理水平,实现生产全过程监控,提高造船效率,提出一种基于数字孪生理论的精细化造船工时管理模式,通过建立二维三维数字孪生模型、系统架构和数据映射逻辑结构,在生产计划、监控通讯设备及企业知识的助力下,实现生产数据实时信息共享及人员、设备、材料有效集成。试验结果表明,数字孪生技术的运用使返工率降低17.6%,修正吨位提高12.4%。基于数字孪生驱动的造船精细化工时管理模式完成了数字化、集成化、智能化、标准化的工时管理信息系统构建,可降低生产管理成本,提高生产效率,提升造船企业核心竞争力。 相似文献
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通过对一体化体系基本理论及国内外相关理论及案例的研究,基于SHU公司的运营,设计了一体化体系框架和构建方案,分析探讨了一体化体系构建的可行性、构建的模式以及方法,并以此为实施方案。在体系运行的过程中,企业保持了良好的可持续发展状态,保持盈利增长和创新能力的提高,证实了质量、环境、职业健康安全一体化管理体系的有效性,同时也为同行业（冶金企业）以及外商独资中小型企业的国际管理体系构建提供了参考,提出适合企业实际的管理体系整合的思路和方法。 相似文献
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基于MapObjects组件的校园房产管理信息系统的设计与实现 总被引：2，自引：0，他引：2
GIS与办公自动化(OA)以及与管理信息系统(MIS)的集成是当前GIS应用领域的热点。相对于以传统GIS软件为基础的集成办法，以ComGIS理论和技术为基础的集成方法具有可扩展性好、高效无缝、成本低等特点。本文探讨了基于GIS组件开发房产管理信息系统的方法，该方法根据校园房产信息的特点，用Mapobiects组件管理空间信息，用SQL Server管理属性信息，采用客户端／服务器(C／S)的系统结构，以高分辨率遥感影像作为校区平面图的显示背景，实现了通过空间数据(校园楼层平面图，校区平面图)对房产可视化管理和分配。 相似文献