Spatial Database Management System of China Geological Survey Extent

The spatial database management system of China geological survey extent is a social service system. Its aim is to help the government and the whole social public to expediently use the spatial database, such as querying, indexing, mapping and product outputting. The management system has been developed based on MAPGIS6.x SDK and Visual C++, considering the spatial database contents and structure and the requirements of users. This paper introduces the software structure, the data flow chart and some key techniques of software development.

Version based spatial record management techniques for spatial database management system

The search operation of spatial data was a principal operation in existent spatial database management system, but the update operation of spatial data such as tracking are occurring frequently in the spatial database management system recently. So, necessity of concurrency improvement among transactions is increasing. In general database management system, many techniques have been studied to solve concurrency problem of transaction. Among them, multi version algorithm does to minimize interference among transactions. However, to apply existent multi version algorithm to improve concurrency of transaction to spatial database management system, the waste of storage happens because it must store entire version for spatial record even if only aspatial data of spatial record is changed. This paper has proposed the record management techniques to manage separating aspatial data version and spatial data version to decrease waste of storage for record version and improve concurrency among transactions.

GIS Database Template for Environmental Management of Mining in Indonesia

Mining sector in Indonesia faces many challenges including needed to support national economy, compliance to central and local government regulations, local community empowerment and environmental impact management. Mining companies are mandatory to perform the environmental management efforts to minimize the negative impact to the environment and pursue sustainability of post-mining land use and as much as possible to restore land to the initial conditions. There are many challenges on management multi parameter and multi temporal spatial data of environmental management. The aim of this research is to design the GIS database template for environmental management in Indonesia’s mining operation. This GIS database is designed using ArcCatalog ArcGIS 9.3 software, through following steps: inventory and assessment government regulations, inventory and assessment environmental quality standards, sorting and grouping parameters, design feature class and attribute, create GIS database, create GIS database dictionary. According to research result, GIS database template has many advantages for environmental management include integrated into a single database, avoid redundancy data, reduce volume data, uniformity data, easy to find and track data, integrated spatial and attribute data, can be used as an input for GIS analysis for decision-making and development strategies.

Database Management System Construction for the Evaluation Results of Intensive Land Use in the Development Areas of Hunan Province

Using spatial data integration and database technology,analyzing and integrating the assessment results in all the development zones at different time in Hunan Province,the paper is intended to construct the database and managerial system for the assessment results of land use intensity in development zones,thus formulating"one map"of Hunan Development zones and realizing the integrated management and application of the assessment results in all the development zones at any time of Hunan above the provincial level.It has been proved that the system has good application effect and promising development in land management for land management departments and development zones.

A CADASTRAL SPATIAL DATA STORAGE STRUCTURE BASED ON RELATIONAL DATABASE

This paper presents a cadastral spatial data storage structure based on relational database,the method and the procedure to realize it.The paper consists of three parts.In the first part,some existing problems in some developed cadastral management systems are discussed.These problems are the following four.1) The security of cadastral spatial data is difficult to be assured.2) It is difficult to varify cadastral data and the integrality of cadastral data is difficult to be kept.3) To transmit and share cadastral data is difficult.4) The efficiency of data access is low.In the second part,the feasibility of using relational database to store spatial data is analyzed and a new cadastral spatial data storage structure is presented.At the same time,the related table structures and field descriptions are given,and then the merits and demerits of this storage structure are analyzed in detail.In the last part,through a real example,the detailed methods to make the new storage structure a reality are given.Moreover,some involving key techniques of the new storage structure are discussed.These techniques are:1) the application of database transaction,2) the application of database trigger,3) and the application of secure recovery of database.

基于Geodatabase的矿区地质灾害数据库的设计

为了研究和治理矿山开采地区几种常见地质灾害,提高对地质灾害数据的掌握,文中在对矿区地质灾害数据进行收集和整理的基础上,通过对相关技术空间数据引擎、Geodatabase模型进行了简单的介绍,并重点叙述了矿区地质灾害信息管理系统中空间数据库和属性数据库的设计方法及过程,最后从两个数据库的连接等方面,对空间数据和属性数据进行汇总、加工、校验和入库,从而完成了数据库的建立。结果表明:该数据库一旦建立,可满足矿区地质灾害管理一体化的需要,可以为区域地质灾害易发性、危险性区划提供直接的数据支持,为地质灾害信息系统在防灾规划中的应用莫定基础,也为防灾减灾工作提供科学依据。

Geodatabase模型的版本控制原理及应用

地理空间数据模型设计是地理信息系统数据库建设的核心问题。本文介绍了GIS发展过程中出现的空间数据模型,以及不同空间数据模型的优缺点。并对Geodatabase版本控制原理进行了分析说明,提出了使用版本控制来管理空间数据库的多用户并发操作、长事务处理,从而保证空间数据库的完整一致性。

Event-based incremental updating of spatio-temporal database

Based on the relationship among the geographic events, spatial changes and the database operations, a new automatic (semi-automatic) incremental updating approach of spatio-temporal database (STDB) named as (event-based) incremental updating (E-BIU) is proposed in this paper. At first, the relationship among the events, spatial changes and the database operations is analyzed, then a total architecture of E-BIU implementation is designed, which includes an event queue, three managers and two sets of rules, each component is presented in detail. The process of the E-BIU of master STDB is described successively. An example of building’s incremental updating is given to illustrate this approach at the end. The result shows that E-BIU is an efficient automatic updating approach for master STDB.

A solution for concurrency control and long transaction management in SDBMS

The problem of long transactions is a significant problem in spatial database. The checkout mechanism and multi version mechanism are two kind methods of solving the problem of long transactions. In this paper, we present a Shallow Version Management mechanism to realize multi version mechanism in spatial database. And we introduced a increment storage and dynamic version views building method to improve efficiency of storing and consulting. We also illuminate how to resolve the problem of long transaction concurrency control in spatial database by using multi version mechanism. At the end of this paper, we introduce some required means to version management in spatial database, like converge, compress and delete.

基于Oracle Spatial的规划用地档案管理信息系统

目的为勘查测绘部门建立先进的规划用地档案管理信息系统,更好地为数据生产服务。方法通过现代GIS技术、MIS技术、数据库技术,结合MicroStation/GeoGraphics V8平台,进行二次开发。结果论述了构建Client/Sever结构的规划用地档案管理信息系统的设计方案,介绍了所使用的关键技术、数据库设计、功能设计以及数据安全管理等。结论提出运用先进的规划用地管理手段,摒弃以文件存储和以文件/关系数据库相结合的传统管理模式,充分利用Oracle Spatial空间数据库对规划用地的空间数据和属性数据进行一体化存储和管理,实现完全的空间数据库管理模式,实现规划用地档案管理上的一个飞跃。

基于WebGIS的文物资源管理系统设计与实现

基于空间数据库和WebGIS技术,对某省三普文物、国保档案、杂志刊物等资源进行处理、整合、建库,建立统一的文物资源管理系统,提供三普文物资源基于GIS的空间化展示与管理以及国保档案和杂志刊物在线查询、阅览等功能。构建了文物信息一体化存储与管理体系,实现文物资源管理从“多个系统、多套数据、分系统检索”转变为“统一平台、一套数据、一体化检索”。

省级空间地理信息库整合建库方法研究

该文围绕省级空间地理信息库的整合建库方法,分析了省级空间地理信息库整合建库的要点及思路,阐述了数据收集与整合、数据存储与管理以及空间数据处理与分析的方法。

基于“一网统管”的空间地理数据中台设计与实践

城市运行“一网统管”是推进国家治理体系和治理能力现代化建设的重大决策部署。针对“一网统管”的空间地理数据资源服务需求,围绕建设“城市治理要素一张图”的目标,设计了空间地理数据中台,从资源门户、数据引擎、服务网关等方面展开研究,重点分析了平台协同应用模式、低代码构建能力、时空数据分析等内容,并结合具体应用场景进行了实践探索,赋能“一网统管”建设。

地理信息空间数据在土地管理工作中的应用开发

国有建设用地管理工作是现代城市管理中的重要环节,是城市规划实现的基础性工作。随着城市管理工作智慧化、精细化进程的推进,地理空间信息数据的支撑作用显得愈发重要。本研究工作基于现有的土地管理工作,组织梳理整合国有建设用地供应的纸质资料、档案及部分现实数据,实现管理数据的矢量化、信息化,建立国有建设用地供应的空间数据库,形成国有建设用地管理“一张图”,提升办公效率,完成优化营商环境的目标,为城市管理者提供决策服务。

自然资源西藏遥感影像服务平台的设计与实现

随着遥感卫星数量的增加,多卫星传感器、多时相、多尺度、多层次的遥感影像数据从GB数量级迅速上升到TB(Terabyte,百万兆字节)数量级。为解决西藏自治区海量影像数据的存储、管理和应用服务问题,西藏自治区测绘院采用云架构体系和在线服务模式,充分利用大数据时代计算机技术和硬件带来的便利,设计了独有的元数据标准,建设了自然资源西藏遥感影像服务平台,支持影像数据的大规模存储、检索、浏览和下载,实现了全省遥感影像数据的接收、统筹、管理、分发和共享,支撑了西藏省级卫星应用技术中心建设和自然资源调查、监测、监管、评估、决策工作。

基于移动GIS的离线版水务一张图应用研究

随着智慧水务建设工作的推进,面向精细化业务管理和专业化社会公众服务的水务移动应用需求日益增加,常用商业在线地图无法满足水务业务管理应用需求。为解决智慧水务移动端底图业务要素内容缺少、时效性差及偏远地区水务外业巡查执法无网络环境的问题,基于MBTiles地图切片存储技术和SpatiaLite空间数据库技术,研究基于移动GIS的离线版水务一张图。同时,为保证离线数据的安全,对切片和矢量数据库进行加密,保障海量空间数据的存储安全和访问效率。经验证,该研究方案能够实现离线空间数据的加载和渲染能力,运算性能高效,数据存储安全可靠,可为河长巡河和水利工程巡检运维等应用场景提供安全、高效、专业的移动地图服务,有效支撑智慧水务建设与应用。

基于ArcSDE的CoGIS在地理数据库中的应用研究

基于ArcGIS空间数据库引擎(Arc Spatial Database Engine,ArcSDE)支持数据库管理系统的多元化发展,通过ArcSDE为数据库管理系统连接提供通道,实现多人协同编辑操作的模式。本文研究了一种基于ArcSDE地理数据库的多人协同编辑操作新模式,并应用于测绘生产项目,取得了高效性、协同性的目标效果,为多人协同编辑的地理数据库测绘生产项目提供了新思路。

基于ArcGIS Engine的地下水资源及其地质环境信息系统设计与实现

针对研究区内需要处理的数据量大、数据种类与格式复杂的特点,利用国际上最先进的ArcGISEngine技术和Visual Basic.NET开发平台,建立了东北地区地下水资源及其地质环境信息系统,将空间数据库与属性数据库联合集成,实现了空间数据分析、图文双向查询、图表自动生成、多媒体链接以及数据库管理等多种功能,能够为区域地学、水资源、环境生态等领域的研究、管理和决策提供空间信息和统计信息等综合信息服务。

中国陆地生态信息空间化技术研究(Ⅰ)——气象/气候信息的空间化技术途径

论文提出了构建中国陆地生态系统空间化信息系统的基本设想,并且在回顾国内外气象/气候信息空间化研究的现状基础上,评价了已有的气象/气候信息要素空间化技术的发展,探讨了中国陆地生态系统气象/气候信息空间化的技术途径,概要地介绍了研究小组在近年来的工作中所取得的阶段性研究成果,展望了这些成果的应用前景。我国陆地生态信息空间化技术研究和数据产品的开发是生态学、资源科学和环境科学发展的迫切需求。但建立一个适应于不同科学研究的精度、时空分辨率要求的陆地生态信息空间数据库需要较长期的努力和多学科领域的合作,也需要大量的作为科学研究基础数据平台建设的国家投资。

“数字海底”数据库:海底多源综合数据的集成与管理方法研究

回顾了近几年海底资料信息化的发展概况,在全面分析海底数据特点的基础上,结合先进的数据库管理系统ORACLE以及空间数据引擎SDE,对海底数据的存储组织结构、分布-集中式数据库体系、归一化空间库技术以及海底元数据管理结构进行了分析和研究,系统地提出了一套海底综合数据的整合方法,在物理上和逻辑上对其进行有效的集成和表达,统一组织管理这些海底数据资源。同时,应用该海底数据集成与管理方法,建设以渤海工程地质数据为主的渤海范围内的海底综合数据库,实现了来自不同单位、不同专业领域的海量海底数据的整合,满足渤海油田工程地质环境探测和海洋工程建设的实际应用需求。