为此，在开发自然保护区信息管理系统时，建立了基于关系型数据库的地理数据模型。
Therefore, geographic data model based on relation typed database is established in developing information administrative system of nature reserves.
空间数据模型是地理信息系统设计的核心和基础。
Spatial data model is the core and base of three dimensional geographic information system design.
本文在分析和总结了早期和近期GIS几种数据模型的优缺点的基础上，对地理空间进行了重新理解，给出了一个面向对象的概念数据模型。
Compared with several other data models used in early and recent GIS, the author gives his own idea of what is a geographical space, and then puts forward a new object-oriented conceptual data model.
数据模型是建设应用型地理信息系统的基础。
Data models are the bases of an appliance geography information system.
传统GIS数据模型反映不了地理世界的连续性。
Traditional GIS data models can not reflect geographical continuity.
介绍了地理信息系统的构成及其数据模型，探讨了在通信领域中如何应用地理信息系统，最后给出了一个应用实例。
This paper introduces the structure and data model of geography information system with its application to the telecommunication field and, finally, presents a practical example.
论文将围绕专题军事地理数据库引擎的一些相关问题，对它的数据模型、空间索引结构、系统设计及开发过程进行研究。
The paper discusses several problems based upon SMDE, and do some research on data model spatial index structure, system designings and the process of exploiture.
本文主要介绍了汽车导航系统中的导航地理数据库标准、数据结构与数据模型、最优路径三个问题。
This paper mostly introduce three issues of Vehicle Navigation System, that are navigation geographic database standard, data structure and data model, superior road.
本文探讨了能更好表达地理特征的数据模型。
This pap er describes a feature -based model that enhances the representation of geographical feature.
第二章：国内外研究进展，系统总结了近些年地理视频数据模型、视频GIS设计与应用的研究进展。
Chapter II: Literature Review has outlined the research progresses in Geo Video data model, VideoGIS design and various applications in recent years.
本文在分析煤矿空间信息特点的基础上，提出了实用于煤矿的地理信息系统数据模型。
The data model which is applicable to GIS of coalmine are put forward based on analysis of the characteristic of coalmine spatial information.
采用语义数据模型的方法，提出利用地理特征这一概念作为建模的基本概念。
The GIS semantic data modeling approach has been used as a tool to design the needed conceptual model.
论文对分布式地理信息进行分析，提出了地理空间信息的数据模型。
Distributed geographic information is analyzed and data model of geographic spatial information is proposed.
本文对导航数据与一般的地理信息数据在数据模型、数据的准确性、数据的组织方法等方面进行了比较。
This paper compared the navigable data with general geographic information data in data model, accuracy and structure, etc.
第四章：系统设计，重点讨论了系统的总体设计、功能设计、地理视频数据模型设计、数据库设计等内容。
Chapter IV: system Design introduces a general system framework, in which the data model, data management workflow and the subsystems are discussed detailedly.
介绍了动态分段技术在交通地理信息系统中应用的基本原理和方法，分析了其对线性特征进行管理时的数据模型和数据结构，在实际项目中实现了其应用。
This paper presents a traffic information system based on wireless mesh network, which uses probe vehicles to collect traffic information and transmits the information through wireless mesh network.
介绍了动态分段技术在交通地理信息系统中应用的基本原理和方法，分析了其对线性特征进行管理时的数据模型和数据结构，在实际项目中实现了其应用。
This paper presents a traffic information system based on wireless mesh network, which uses probe vehicles to collect traffic information and transmits the information through wireless mesh network.
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