J I A N G S U U N I V E R S I T Y 本 科 毕 业 论 文
地下管线管理信息系统设计与实现
Design and Implementation for
the Underground Pipeline Information System
学院名称： 专业班级： 学生姓名： 指导教师姓名： 指导教师职称：
2006 年 05 月
江苏大学本科毕业论文
Design and Implementation for
the Underground Pipeline Information System
Abstract Along with the urban development, underground pipeline has become the
live vein of the people and the economic activities, also become the material base of urban survival and development. This paper gives a review on the development of GIS and an analysis on the characteristics of currently popular GIS platform, analysis of the system development pattern and the implement technology, also, determines controls and algorithms for quadratic development. Main content introduced in this paper includes:
After analyzing the special demand of Pipeline Information System (PIS), based on the comparative conclusions among three different development modes of GIS, and two popular GIS platforms, with the characteristic of the COMGIS taken into account, a comprehensive solution based on MapObjects to construct the PIS is proposed.
Based on the characteristic of the pipeline data, a plan on the encoding and a data organization model are proposed. Especially, the concept of the geometrical network and the relative network topology analysis are discussed. The accident analysis model, the algorithm to find the shortest path, the buffering analysis, the flow to implement the transect analysis are also introduced. The ‘Dijkstra algorithm’ is implemented on basis of Depth-First Traversal.
The analysis is given on the design of the information encoding and the spatial database. The main method used within the spatial analysis of PIS is introduced. The comprehensive solution of the constructed PIS is introduced in detail. The implemented functions include data input, data query, spatial analysis, map output, system maintain and so on. To a certain extent, the constructed PIS makes progress in ‘Data Integration’ and ‘System Interoperation’.
The PIS is constructed with the C/S framework on basis of MapObjects, and produced solutions to several key questions in system realization.
Keywords underground pipeline, geography information system, database, C/S mode
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江苏大学毕业论文
摘要
随着现代城市的发展，地下管线已成为人民生活和经济活动的命脉，也成
为城市赖以生存和发展的物质基础。本文对国内外地理信息系统技术和管线信息系统的特点进行了综述，分析了系统的开发模式和实现技术，确定了二次开发的控件和算法，并设计实现了城市地下管线信息系统。本文的主要工作包括： (1)分析了地下管线信息系统的特点以及与地理信息系统的关系，在比较分析三种开发模式和两种流行的GIS开发平台的基础上，结合ComGIS的特点和原理，基于MapObjects进行二次开发形成了一套拓展的GIS控件。
(2)分析了管线数据的特点，设计了城市地下管网信息系统数据编码和管线数据组织的模型；阐述了地理信息系统中网络分析的概念及常规网络分析的解决方案，论述了事故分析、最短路径分析、缓冲区分析和纵横断面分析流程的方法，采用深度优先遍历方法实现Dijkstra算法。
(3)分析和提出了地下管线的信息编码和属性数据库的设计方案，对管线信息的空间分析手段作了深入的探讨；在此基础上，运用MapObjects作为二次开发控件，以ComGIS为基础对地下管线信息系统项目进行了详尽的方案设计，实现数据输入、属性查询、空间分析、图形输出、系统维护等多方面功能。系统在一定程度上解决了目前大多数系统的数据格式单一、数据互操作性不强，或在数据格式转化中常常出现数据丢失、错误改变等问题，实现了比较完备的管线空间数据与属性数据编辑及维护功能。
(4) 采用C/S模式，设计和实现了城市地下管网信息系统，并对系统实现中的几个关键问题，给出了解决方法。
关键词：地下管线，地理信息系统，数据库，三维可视化， C/S模式
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江苏大学毕业论文
目 录
第一章 绪论 ............................................................................................................. 1 1.1 课题研究的背景与意义 ..................................................................................... 1 1.2 地下管线信息系统的现状 ................................................................................. 2 1.3 本文研究内容 ..................................................................................................... 3 1.4 论文的结构 ......................................................................................................... 4 第二章 相关理论与技术基础 ................................................................................... 5 2.1 地理信息系统 ..................................................................................................... 5 2.1.1 地理信息系统的概念................................................................................... 5 2.1.2 地理信息系统的结构................................................................................... 5 2.2 地下管线系统 ..................................................................................................... 6 2.2.1 地下管线的概念........................................................................................... 6 2.2.2 地下管线信息系统与GIS的关系............................................................... 8 2.2.3 地下管线系统的特点................................................................................... 8 2.3 GIS开发模式 ....................................................................................................... 9 2.3.1 三种开发模式............................................................................................... 9 2.3.2 三种模式的比较......................................................................................... 10 2.4 组件式GIS ........................................................................................................ 10 2.4.1 组件式GIS的特点..................................................................................... 10 2.4.2 组件式GIS的实现技术............................................................................. 12 2.4.3 两种比较流行的组件式GIS控件............................................................. 13 2.4.4 MapObjects的特点 .................................................................................... 15 第三章 地下管线信息系统分析 ............................................................................. 17 3.1 地下管线数据组织 ........................................................................................... 17 3.1.1 数据分层、分幅管理................................................................................. 17 3.1.2 属性数据编码............................................................................................. 17 3.1.3 地下管线信息系统的数据结构................................................................. 18 3.2 地下管线空间分析 ........................................................................................... 21 3.2.1 事故分析..................................................................................................... 21 3.2.2 最短路径分析............................................................................................. 23 3.2.3 缓冲区分析................................................................................................. 25 3.2.4 纵横断面分析............................................................................................. 27 3.3 数据检查 ........................................................................................................... 28
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