The 2012 2nd International Conference on Circuits, System and Simulation (ICCSS 2012)
IPCSIT vol. 46 (2012) © (2012) IACSIT Press, Singapore
Design and Implementation of LANCANG River Basin Management
Information System
Shi Lei1, Huang Chong1, Liu Gaohuan1, Xie Chuanjie1, Ran Fankun2
1
State Key Laboratory of Resources & Environment Information System Institute of Geographic Sciences
and Natural Resources Research ,Chinese Academy of Science, Beijing 100101
2
China University of Geosciences, Beijing 100083
Abstract. This paper presents the techniques of GIS and applies it into the management of the information
system of LANCANG River Basin, providing a new managing pattern for the LANCANG River Basin.
Through the construction of the integrated management information system of LANCANG River Basin, we
realize the data sharing among LANCANG River Basin’s different departments which effectively uses data
resources information scattered in various departments and improves utilization value of data. This paper
introduces the significance of LANCANG River Basin Integrated Management Information System and then
describes the system framework, overall function and the database construction
Keywords: LANCANG River Basin; data information sharing; management information system; GIS
1. Introduction
With the development of computer technology and network technology, the application of Geographic
Information System has been developed rapidly, which brings major innovation to geographic information’s
electrification, visualization and central storage management. GIS system is the high technology of storing
and processing spatial information, merging computer graphics and databases into one organic whole [1]. It
organically combined geographic position with associated properties to provide various decision support
functions, by virtue of its unique spatial analysis and visualization expression.
Owing to the management station and control stations of LANCANG River Basin located in different
regions, various kinds of information are more widely dispersed. Besides, information processing mainly
depends on manual handlings, which cause heavy workload and low efficiency, making against to the
exchanging and sharing of the whole LANCANG River Basin’s information. By the introduction of GIS
technology to the management of LANCANG River Basin, the display of industry source data, key source of
data, rural and urban water usage data for LANCANG River Basin become more intuitive [2]. It could realize
timely reporting and sharing of the information for LANCANG River Basin management stations and
control stations, and the input, storage, processing, comprehensive analysis and results output of information
for every department in LANCANG River Basin Authority, which greatly improve the managers’ working
efficiency. In the meantime, it enables managers not only able to understand and grasp general situation of
LANCANG River Basin graphically, but also understand the situation of various non-graphic elements
through a variety of fast search tools. Moreover, it doubles the amount of information available to managers
which promote the modernization level of LANCANG River Basin management.
2. Overall Design
+
Huang Chong. Tel.: + 86 13661071673
This paper is supported by “The national infrastructure work special (2008FY110300)” natural fund.
E-mail address: huangch@lreis.ac.cn.
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The logical structure of this system can be divided into three layers: physical layer, application layer,
presentation layer. The overall structure of the framework for the system is shown in Figure .1.
(I) Physical Layer: The lowest level of the whole system, the physical layer is the corner stone of the
system .It mainly provide raw data for high-level application. It is saved to the database in the form of a
unified data. The system includes seven classes of databases: basic geographic information database, remote
sensing image database, ecosystem database, the database of biodiversity, water resources and water
environment database, socio-economic statistical database and metadata information database[3];
(II) Application Layer: Application layer accepts a variety of operating requirements proposed by users,
calls different function modules to respond. Application layer analysis operating requirements of the users
and determines the original data to use. Then the corresponding function module accesses the original data
through the data interface platform, with analytical processing, and seeking the result desired by users;
(III) Presentation layers: presentation displays calculation results of application layer in various forms,
such as thematic maps, cartograms, charts, reports, etc., on a graphical interface intuitively;
Presentation Layer
Statistical
figure
Special charts
Map
Report forms
Application Layer
The Spatial Data Engine Interface
Fundamental
Geographic
DATABASE
Remote Sensing
Image
DATABASE
Ecological
System
DATABASE
Database Access Interface
The Water
Resources and
Water
Environment
DATABASE
Biological
Diversity
DATABASE
Social Economic
Statistics
DATABASE
Meta Data
DATABASE
FILE DATABASE
Physical Layer
Figure.1 overall structure of system
2.1. Designed Goals
The main purpose for development of the data integration and sharing system of LANCANG River
Basin based GIS is to replace the manual management for water resources and water environment
information, biodiversity information, cultural heritage information, human settlement information,
information of land use in LANCANG River Basin and other information management, The system can
provide the following functions:
(I) Providing simple operation, powerful query function;
(II) Providing the statistical analysis of all the data in the LANCANG River;
(III) Providing the basic operation function on the map;
(IV) Providing import and export of data;
2.2. System Structure
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The system uses the architecture of B/S and C/S combination, B/S mode is mainly used for the sharing
and releasing of information [4], and C/S mode is mainly used to achieve internal management and
maintenance of the system, to provide interactive complex information processing. Both modules are
organically combined into a whole. The logic structure of system is shown in Figure2 as following:
Arc GIS Server
DATA
BASE
IE BROSE
ADO
ODBC
CLIENT
SERVER
FILE SERVER WEB SERVER
Figure 2 system structure
In B/S mode, using ActiveX technology and .NET technology to generate a dynamic webpage, which
makes the system users via a web browser, visiting the Web server to achieve dynamic query and browse a
variety of graphic and attribute information. In C/S mode, with C# development [5] of the client application,
the OLE automation technology enables the client software to connect to database server in order to access
dynamic data. Make a variety of operations: editing, query, analysis, printing, etc on all graphics information
and related attribute information through the connection of ODBC and attribute database. Web Server, Arc
GIS Server and some other server soft wares are installed on server. Arc GIS Server software, which is
developed based on the Arc GIS, provides a powerful map editor, map layer management, inquiry and
analysis, data access and other functions.
2.3. System Features Modular Design
In the system the users are divided into three categories: general user, departmental users and
administrators [6]. General users can only import browse, query all kinds of information and don’t have the
authority to modify the information. Additionally departmental users also have authority to modify, maintain
information of their own Department and at the same time make statistics analysis and output several of
information in order to facilitate decision-making. Administrators with the highest authority can import,
browse, modify, delete, and query all data information.
According to the needs of users, the system is divided into the following eight function modules:
(I) Information query model: not only provide graphics, attribute metadata information, etc inquires
function, but also provides inquiries of conditions combination. Users can inquire to the location conditions
through the complex conditions fast [7];
(II) Graphics browsing module: to provide graphic browse, any zoom, pan, ranging, layer control and the
function such as eagle eye;
(III) Data import module: the system provides the functions of the vector data, the grid data and form
data inventory;
(IV) Statistical analysis module: display the statically results in the forms of figure, chart and thematic
map and print to output;
(V) System output module: including graphics output and data output, the system can output the valley
floor plan, monitoring site map and user's thematic maps, etc, but also output various types of data in the
form of statistical graphic or chart[8];
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(VI) Metadata input module: metadata data entry information includes data set information ( the name,
data quality, data set format, keywords, purpose and entry time) and data sets contact information (name,
unit, email, phone, address and zip code);
(VII) System maintenance: mainly used for the management of the users’ access as an administrator, the
different users have different authorities;
(VIII) Symbol rendering module: the system to provide the simple symbols rendering, graded colour
rendering, the only value symbol rendering, proportion symbols rendering, density symbols rendering, etc;
3. System Implementation
3.1. System Development Process of the Main Technology
(1)Founding database
In the LANCANG River Basin management information system, related data include graphics data and
corresponding attribute data. To enhance the flexibility of the system data processing, use the principle of
separating design with graphics DB and attribute DB when establishing the river basin information DB. Arc
GIS provides object-oriented spatial data management and supports the design of graphics DB and attribute
DB [9]. Attribute DB manages a great amount of information data about LANCANG River Basin, such as
industrial sources, key source, poultry farming, urban life, rural life, sewage treatment plant and so on.
Graphics DB includes basin plan, monitoring sites map, pollution source vector, and so on.
Graphics DB and attribute DB is to use a unique ID to establish a connection relationship identification
number, so in the establishment of property database [10], graphical database for the different layers of the
surface features class, set the attribute data tables, and set the fields and the field properties specific data can
be concentrated in the ORACLE database at last, in order to reducing data entry problems, improving the
efficiency of databases.
(2)Using XML for information exchange
GIS information is spatial data and attributes data’s combination. Its data is very large and location is
dispersion. While information used in a variety of formats, it requires a unified expressions to organize the
data to carry out the browser and server’s information exchanging. In the system, browser and server’s
communication use Microsoft’s XMLDOM [11], and data’s transfer use XML format, using XML data
XMLDOM processing, transmission and display of data. We will illustrate with an example of checking
information.
Client uses DOM through client-side scripting language to the Web server, processing as follows:
(Ⅰ) Construct a URL to communicate with the ASPX file;
(Ⅱ) Create XMLDOM;
(Ⅲ) Call XMLDOM’s method of load and then send a request to the Web server, which will finish the
corresponding function and return the appropriate attribute information by ASP file.
(Ⅳ) Call XMLDOM’s method and attribute to analyze the result and use the analyzed data to change the
content of browser page [12].
(3) Arc GIS&C# Interactive Integration
3.2. System Implementation
The system used Windows XP operating system as for computer software development based on map
(graphic, image). Graphics operation is show on the platform such as vector and layer. Data processing
programming language is c#. Arc GIS can be used as an object in c# and embedded in its application, by
calling the methods and set the target attribute to realize the system function.
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Figure 3 C/S structure system implementation
4. Conclusion
With the development of current computer network technology and the application expansion of GIS
technology, GIS technology has also been applied in the LANCANG River Basin. The design and research
of this system is to develop a GIS application system, which will be applied to the LANCANG River Basin
management systems, realizing the combination of geographic information and LANCANG River Basin
management information in the same platform and providing a new, visualized and efficient management
system for LANCANG River Basin Management.
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