Full feature data model for spatial information network integration

In allusion to the difficulty of integrating data with different models in integrating spatial information, the characteristics of raster structure, vector structure and mixed model were analyzed, and a hierarchical vector-raster integrative full feature model was put forward by integrating the advantage of vector and raster model and using the object-oriented method. The data structures of the four basic features, i.e. point, line, surface and solid, were described. An application was analyzed and described, and the characteristics of this model were described. In this model, all objects in the real world are divided into and described as features with hierarchy, and all the data are organized in vector. This model can describe data based on feature, field, network and other models, and avoid the disadvantage of inability to integrate data based on different models and perform spatial analysis on them in spatial information integration.

Geospatial Information Service Based on Ad Hoc Network

The mobile geospatial information service involves the domain of mobile communication, mobile computing, geospatial information service and other techniques. This paper focuses on the integration of spatial information and mobile communication technologies. The author proposes the architecture of mobile geospatial information service based on the Ad Hoc network. On the basis of this architecture, a system is developed, and applied in correlative fields.

An ethics assessment list for geoinformation ecosystems: revisiting the integrated geospatial information framework of the United Nations

To achieve sustainable development goals,georeferenced data and geographic information systems play a crucial role.Yet,the way in which these data and systems are summoned upon rests on positivist assumptions which overlook both epistemological and ethical concerns.This is epitomized by the integrated geospatial information framework(IGIF)of the United Nations,which,from the perspective of sustainable development,aims to provide guidance for the management of geoinformation and related tools,considering these as mirrors of the physical world.In this respect,the article has three main goals.First,it delivers an epistemological and ethical critique of the IGIF,by highlighting its internal tensions.Second,it suggests how the IGIF and similar geoinformation initiatives can benefit from an ethical reflection that allows to conduct georeferenced practices in a fair(er)way.Third,it designs an ethics assessment list for self-evaluating the ethical robustness of geoinformation initiatives as ecosystems.

信息生态理论视角下城市数据要素市场就绪度评估

数据要素市场建设是落实数字中国和数字经济发展战略的重要基石。当前我国数据要素市场处于发展初期,数据资源储备丰富但市场发展存在高度的不均衡性,清楚认识数据要素市场发展状态具有重要的理论和实践意义。本文根据数据要素市场发展的初期性特征,提出数据要素市场就绪度概念,基于信息生态理论的“三元构成”设计指标框架,以城市为分析单元科学测度国内298个城市数据要素市场就绪度水平,进一步分析城市空间均衡性,评估区域竞争力与协调度发展水平。研究结果客观反映了当前我国数据要素市场发展的总体状况、问题和区域特征,为后续制定数据要素市场政策、推动全国数据要素市场一体化建设提供了依据。

CAD实体扩展属性在“多测合一”空间数据库中的应用

“多测合一”正逐步在各大城市推行,而大部分的“多测合一”中有一项重要的工作是生产空间数据库。常规的“多测合一”数据成果均是在各大CAD平台软件中进行数据编辑与发布,即编制常规的DWG格式的图形文件以及输出相应的成果图件。但CAD平台中的实体要输入到空间数据库中,需要进行大量的转换和属性录入,这给生产工作带来了很大的麻烦。通过研究,基于CAD图形实体的扩展数据构建与空间数据库矢量实体属性的挂接,并通过FME软件进行数据转换,可以实现CAD实体与空间数据库的高效、快捷、轻量级的转换,提高生产效率和数据质量。

国土空间基础信息平台集成监控视频数据的方法研究

针对国土空间基础信息平台集成监控视频数据过程中的跨网络、数据异构等问题,本文首先对国土空间基础信息平台集成监控视频的现状需求进行研究分析,提出了数据集成的解决思路,并对涉及的跨网络数据传输、流媒体数据转换、服务代理网关等关键技术进行研究,最终提出了一种集成监控视频的方法,并对该方法进行了实践验证。实践表明,该方法能够在保障网络安全前提下,解决数据集成过程中的跨网络、数据异构等问题。国土空间基础信息平台集成监控视频数据,能够实现监控视频数据与涉密或敏感数据的叠合联动,具有较为丰富的应用场景。

基于多类型空间数据集成技术的数据库管理与共享服务平台的设计与实现--以广西为例

基于第三次全国国土调查工作相关背景,文章以广西壮族自治区第三次全国国土调查数据库管理系统为例,阐述了多类型空间数据集成技术在数据库管理与共享服务平台建设方面的设计与实现,并介绍了该系统在广西自然资源领域的实际应用案例及所取得的社会经济效益成果等内容。使用该技术所设计的系统和数据库有助于实现海量数据的集中管理,从而为自然资源宏观规划和管理提供有力的支撑,进而满足国民经济与社会发展对土地调查数据的广泛需求。

Sustainable development and geospatial information:a strategic framework for integrating a global policy agenda into national geospatial capabilities

The 2030 Agenda for Sustainable Development provides a new global policy to guide the way countries collectively manage and transform the social,economic,and environmental dimensions of people and the planet over the next 15 years.Achieving sustainable development presents all countries and the global policy community with a set of significant development challenges that are almost entirely geographic in nature.Many of the issues impacting sustainable development can be analyzed,modeled,and mapped within a geographic context,which in turn can provide the integrative framework necessary for global collaboration,consensus and evidence-based decision-making.However,and despite significant advances in geospatial information technologies,there is a lack of awareness,understanding and uptake,particular at the policy and decision-making level,of the vital and integrative role of geospatial information and related enabling architectures such as National Spatial Data Infrastructures.This paper reasons that the role of geospatial information in contributing to sustainable development has not adequately been described by either the sustainable development policy practice or by the geospatial professional community.This lack of policy and guidance,with commensurate critical gaps and connection points with national geospatial frameworks,is a visible impediment to developing countries and those most affected by the challenges and need to achieve sustainable development.The global geospatial community now has a unique opportunity to integrate and connect geospatial information into the global development agenda in a more holistic and sustainable manner,specifically in contributing their data resources toward measuring and monitoring the 17 Sustainable Development Goals,and their 169 associated targets,through the global indicator framework that anchors the 2030 Agenda for Sustainable Development.This paper introduces and discusses a new strategic framework for linking a global policy to national geospatial capabilities.

A brief overview of current status of European spatial data infrastructures-relevant developments and perspectives for Bulgaria

The paper aims to present a concise overview of the current status of the national spatial data infrastructures(SDI)of the European Union(EU)member states combined with specific peculiarities for Bulgaria.Some major challenges within the progress of the EU SDIs establishing,which is regulated by the European Directive INSPIRE(Infrastructure for spatial information in Europe)toward establishment of a SDI for environmental policies and activities,are marked out.Available comparative analyses of the main indicators for metadata,data-sets,and data services provided by EU member states are briefly discussed as a special attention is given to the Bulgarian progress.Recent achievements on accelerating the process of implementing the recommendations of the INSPIRE Directive in Bulgaria are outlined.

基于Oracle Spatial实现多源空间数据集成

探讨了空间基础数据的集成问题。在分析了目前地理信息集成的3种方式后,提出使用大型关系DBMS作为各种格式空间数据的容器,空间数据引擎作为空间数据出入该容器的通道。并以Oracle9iSpatial为例,分析了OracleSpatial的空间对象模型,使用OracleSpatialJava类库设计并实现了一种以XML为信息交换标准的空间数据转换系统,将空间数据接口统一集成到OracleSpatial中。

Conceptual design and implementation of spatial data warehouses integrating regular grids of points

Spatial online analytical processing(OLAP)and spatial data warehouse(SDW)systems are geo-business intelligence technologies that enable the analysis of huge volumes of geographic data.In the last decade,the conceptual design and implementation of SDWs that integrate spatial data,which are represented using the vector model,have been extensively investigated.However,the integration of field data(a continuous representation of spatial data)in SDWs is a recent unresolved research issue.Enhancing SDWs with field data improves the spatio-multidimensional analysis capabilities with continuity and multiresolutions.Motivated by the need for a conceptual design tool and relational online analytical processing(ROLAP)implementation,we propose a UML profile for SDWs that integrates a regular grid of points and supports continuity and multiresolutions.We also propose an efficient implementation of a ROLAP architecture.

Open data in spatial data infrastructure:the practices and experiences of Poland

As an important facilitator in e-government and society in general,Open SDI merits an assessment of its characteristics and the monitoring of its development.The aim of the study was the proposal of the SDI openness assessment approach based on existing openness assessment frameworks,as well as the presentation of the Polish Spatial Data Infrastructure(PSDI)development towards openness.The results indicated that ten geodetic and cartographic databases fulfilled ten out of eleven criteria of data openness,according to the methodological assumptions,and reached a 3-star level of openness.The need for further development of the infrastructure towards sharing public administration data is recognized,as well as non-governmental data that meet the open data criteria,thus contributing to the openness of the SDI.The proposed assessment method,referenced to a five-level data openness system and providing clear scoring benchmarking for assessing SDI openness,may be used for comparative analysis of SDI openness in different countries,including EU Member States that draw on the experience of the implementation of the INSPIRE Directive.

实景三维在自然资源监测的应用

构建能与现实场景互联互通的实景三维数字基底,可为加快构建自然资源统一监测体系提供高质量的监测成果及地理信息服务。本文在自然资源统一调查监测评价框架下,开展自然资源季度监测工作,研究基于实景三维的自然资源调查监测实际应用。以常熟市自然资源监测省级试点为例,利用实景三维技术手段,为常熟市自然资源保护与管理提供技术支撑。结果表明,多尺度、时序化、关联化的实景三维技术表现力强、分析结果精准、监测效果优,能高质量地支撑自然资源监测应用场景。

国土空间多源时空数据融合关键技术研究与应用——以石家庄国土空间基础信息平台为例

在地理空间框架基础上,国土空间信息平台充分运用移动互联网、物联网、云计算、大数据、人工智能、空间信息等新一代信息技术,探索基于多源二三维一体化的城市时空基础数据,融合自然资源业务数据、横向获取各政务数据等特点的高效融合模式,旨在建成全域统一的国土信息数据一张图,同时需要结合国土空间典型业务需求,通过SuperMap处理自动化(Processing Automation,PA)技术为海量二三维一体化数据的高效信息挖掘提供建设性方案。最后以石家庄国土空间基础信息平台为例,对文中探究的国土空间多源数据管理与应用方法进行实践。

老城地上地下一体化发展决策系统及平台构建

老城地下空间的开发利用有利于缓解城区的空间矛盾,激发城市空间活力,近年来逐渐成为提升老城人居环境的重要手段。与此同时,大数据技术和人工智能作为新时代城市空间科学规划开发的助力器,可为地下空间建设提供有力的技术保障。因此,老城地上地下一体化信息系统地研究和开发具有重要的研究价值和实践意义。本文基于国内外城市地下空间信息化系统的资料收集和调研,提取比重较高的影响因子,引入大数据集成处理技术,结合机器算法与相关评价方法,拟开发适用于老城地下空间开发管理的地上地下一体化发展决策及数据支撑平台,旨在为实现老城空间集约化发展和数字化管理提供数据支撑和决策参考,从而推进老城更新与城市风貌保护及发展。

无人机倾斜测量技术在自然资源一体化建设中的应用——以保定高铁片区为例

在自然资源机构调整的背景下,通过研究无人机倾斜三维测量技术,生产自然资源相关数据库所需的地理空间信息数据资源,以推动自然资源一体化建设进度。本研究以保定市高铁片区为例,大疆M300无人机平台进行外业采集,并利用Context Capture软件生产了三维模型、DEM、DSM、DOM及数字线划地形图等数据,实现了自然资源一体化建设中多源异构数据的生产。

The application of open standards to enhance the interoperability of geoscience information

We can adequately study broad global issues and policies only by taking geosciences into account.Our research and decision-making must share and make effective use of interdisciplinary data sources,models,and processes.Noninteroperability impedes sharing of data and computing resources.Standards from the Open Geospatial Consortium(OGC)and other organizations are the basis for successfully deploying a seamless,distributed information infrastructure for the geosciences.Several specifications now adopted by the OGC consensus process are the result of OGC interoperability initiatives.The OGC standards,deployment architectures,and interoperability initiatives are described showing how the OGC standards baseline has been developed and applies to the geosciences.

基于规划和自然资源的空间数据治理研究

规划和自然资源空间数据治理是推进自然资源信息化建设、国土空间治理体系与业务数据治理能力现代化的基础与前提,是全面履行“两统一”职责、推进智慧城市发展和自然资源信息化管理与治理能力的重要基石。在自然资源信息化建设总体方案指导下,文章分析了规划和自然资源数据治理的背景,空间数据治理工作中的数据、平台、应用等基础现状,提出当前数据治理工作中存在的主要问题,总结规划和自然资源数据治理工作的治理思路,进一步阐述数据治理融合优化途径,最后对规划和自然资源数据治理提出工作建议。

开放式空间基础信息平台的发展特征与技术内涵

基于测绘和地理信息产业发展背景,针对日益增长的数据融合、实时共享、深度处理和个性化的需求,对数字城市中测绘服务特征进行分析,重点介绍符合云计算模型的开放式计算环境、多路径数据更新、多源数据一体化集成、全尺度城市编码、自适应空间数据处理和动态在线制图等理论、方法与关键技术。在此基础上,研制开发了开放式空间基础信息平台,并成功应用于数字深圳的建设中。

多源空间数据融合技术探讨

地理信息系统的迅速发展和广泛应用导致了空间多源数据的产生,给数据的集成和信息共享带来不便。不同数据源,不同数据精度和不同数据模型的地理数据融合理论与方法的研究,对于降低地理数据的生产成本,加快现有地理信息更新速度,提高地理数据质量有着重要的现实意义。本文对多种空间数据融合的原理与方法进行了讨论,给出了空间数据融合的多种应用,并对数据融合的发展方向进行了展望。