CN106055578A - Geography national condition monitoring system based on GIS network service and rich internet application - Google Patents
Geography national condition monitoring system based on GIS network service and rich internet application Download PDFInfo
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Abstract
The present invention discloses a geography national condition monitoring system based on GIS network service and rich internet application, and relates to the geography national condition monitoring field. By utilization of the advanced technologies such as network geographic information system technology, network service and rich internet application, a geography national condition monitoring database is established by using a Geodatabase; REST geography national condition monitoring data service is published by using an ArcGIS for Server; and a geography national condition monitoring network open platform prototype system is constructed by using a technical route that a server is developed by using a ComGIS component library ArcObjects and a client geography national condition monitoring application is developed by using an ArcGIS API for Flex. Application results show that the system has the advantages that the structure is flexible, the system can be expanded, load is balanced, the client application is convenient and abundant, and development is fast.
Description
Technical field
The present invention relates to geographical national conditions monitoring field, particularly relate to one and apply with rich internet based on GIS network service
Geographical national conditions monitoring system.
Background technology
Geographical national conditions refer to those and geographically relevant nature and the national conditions of Humane Factors, and it reflects one from space angle
National Nature, economy, humane situation.Geographical national conditions monitoring is comprehensive utilization airborne and spaceborne RS technology (RS), Global Satellite
The modern survey and draw technologies such as navigator fix technology (GNSS), geographic information system technology (GIS), have surveying and mapping result comprehensive each period
Archives, are carried out key elements such as landform, water system, traffic, ground mulching dynamically and quantification, the monitoring of spatialization, and statistical analysis
Its variable quantity, change frequency, distribution characteristics, areal variation, variation tendency etc., form reflection all kinds of resources, environment, ecology, warp
The spatial distribution of Ji key element and the process of the Monitoring Data of development and change rule, map graph and research report thereof.Geographical national conditions
Monitor by geographical national conditions are surveyed and drawn dynamically, added up, comprehensively analyze and study national conditions from geographical angle, for political affairs
Mansion, enterprise and all sectors of society provide the geographical national conditions information of true and reliable and accurate authority, thus provide more for science decision
Quality services.
The construction content of geographical national conditions monitoring includes that geographical national conditions monitoring programme obtains and place with conceptual design, Monitoring Data
Reason, geoscience computing model modeling, monitoring result express with management, Monitoring Result share service etc. a series of have be closely connected
Step.Meanwhile, geographical national conditions monitoring is a long-term arduousness and great engineering, need each government, each relevant departments common
Cooperation just can be smoothed out with coordinating.Therefore, sharing of geographical national conditions monitoring information just seems outstanding with issuing and upgrading in time
For important.Shared and the issue of geographical national conditions monitoring information is relation national economy and social development, Important Project and burst thing
The key factor of part Emergency decision etc., it mainly carries out information sharing and issue by the medium such as news media, the Internet, including
The primitive forms such as statistical data, chart, map, image, video cartoon, voice, word report.GIS and the combination of network technology
I.e. WebGIS, provides technical support for sharing of geographical national conditions information with issue.WebGIS utilizes network advantage to carry to user
For hypermedia, interactive mode, distributed spatial information so that process the mode of massive spatial data from original concentration, exclusive
Move towards distribution, share.Based on this, set up a sing on web GIS framework, possess online updating, network geographical national conditions
Monitoring information issues, inquire about, share, manage and the geographical national conditions monitoring system of the function such as analysis, it is possible to provide association for multidisciplinary
Make the instrument updated with data, and can build and multi-level include towards the public, towards the geographical national conditions monitoring information of government affairs
Public service platform, thus reach to reduce geographical national conditions information use cost；Promote that geographical national conditions information is shared at multidisciplinary
With integrated；Faster, effectively provide authoritative, objective, geographical national conditions information service accurately for relevant departments and the public, for section
Learn decision-making and the purpose of more good service is provided.Therefore, build network geographical national conditions monitoring system and there is important reality
Meaning.
Geographical national conditions monitoring system should possess the function integrated with other information systems, i.e. possesses GIS interoperability, thus
Reach the purpose of geographical information sharing.The isomerous environment appearing as solving GIS of Web Services (network service) technology is created
Make condition.In consideration of it, present invention development platform ArcGIS based on business network GIS-Geographic Information System for Server,
In conjunction with Web Services and RIA (Rich Internet Applications, rich network application) technology, construct a base
In WebGIS framework, possess online updating, network geographical national conditions monitoring information is issued, inquires about, shares, manages and is divided
The geographical national conditions monitoring system of the functions such as analysis.
Existing development technique introduction:
1.ArcGIS for Server and REST network service:
ArcGIS for Server (hereinafter referred to as ArcGIS Server) is a powerful based on server
GIS product, be user create enterprise GIS application platform, for build centralized management, support multi-user, possess height
Enterprise GIS application and the service of level GIS function.ArcGIS Server provides the GIS service of sing on web widely, to support
The GIS functions such as geodata management, drawing, geographical process, spatial analysis, editor are realized under distributed environment.ArcGIS
Server supports to issue based on SOAP and REST (Representational State Transfer, declarative state shifts)
Network service.The most almost all of service based on soap protocol broadly falls into RPC formula framework, is mainly based upon XML-
SOAP-WSDL-UDDI technology realizes, and its architecture is mainly realized by the technology layer of five types, from top to bottom
It is followed successively by discovery layer, describing layer, wrapper, transport layer and Internet.In this hierarchy, a kind of technology relies on adjacent
Lower a kind of technology.And Web service of based on soap protocol and calling of its service are closely-coupled.Therefore, RPC formula Web clothes
Business has that Technical Architecture complexity, complex interfaces, scalability be poor, the bad control of safety, be difficult to support and act on behalf of and caching etc. is asked
Topic.With complicated SOAP and XML-RPC contrastingly, Web service based on REST pattern seems the most succinct.REST is for dividing
A kind of framework style of cloth Design of Hypermedia System.REST network service refers to the Web using the style of REST formula to create
Service, it is the service of resourceoriented (Resource Oriented Architecture, ROA), can be identified by URI
And locating resource, and the operation performed for these resources defined by HTTP specification.Therefore based on REST style
Web application directly utilized HTTP and URI function, played the potentiality of http protocol and URI to greatest extent.REST
The appearance of formula Web service makes user have the more time to pay close attention to business itself, and is no longer necessary to take much time with energy at clothes
That is engaged in calls and realizes.In view of the advantage of REST formula Web service, the present invention uses ArcGIS Server to issue REST formula ground
Reason national conditions monitoring network service.
2. rich internet application RIA technology:
The exploitation of legacy network program is based on the page, the pattern of servers' data transmission, the table of network program
Showing that layer builds on html page, and HTML is suitable for text, traditional system based on the page gradually can not
Meet that network application is higher, omnibearing be require that, and the appearance of RIA is namely in order to solve this problem.RIA is collection table
Commonly used and quick, the low cost of the best user interface function of face application program and web application are disposed and interactive
Multimedia communication in real time fast in the new generation network application program of one.It combines traditional network application program and desktop
The advantage of application program, be provide not only abundant client experience, and easily can be disposed by network, namely tradition
The advantages such as the motility Consumer's Experience outstanding with under C/S model and interactivity of disposing of B/S application integrate.Therefore, rich visitor
Family end application RIA becomes one of Web2.0 epoch technology of greatest concern and study hotspot.
At present, build the mainstream technology of RIA application and mainly have the Flex technology of Adobe and Microsoft
Silverlight technology.Flex technology is with its software development environment, unified interface display effect, powerful user efficiently
The advantages such as experience functions, the rapid build of enterprise-level application, brand-new page navigating mode and multiple data interactive mode obtain
Arrive the favor of developer.The another one advantage of Flex is that the huge installation amount of Flash plug-in unit can easily be transported
Row is in the client computer of the overwhelming majority.
3.ArcGIS API for Flex:
The ArcGIS API for Flex that ESRI company releases is a powerful Development Framework based on Flex.Its energy
Enough GIS functions realizing enriching in RIA, it is also possible to call ArcGIS Server's by the form accessing Web Services
Resource, such as address location, atlas and the geographical model etc. that processes, and can be with ArcGIS Server as backstage and combine
ComGIS Component Gallery ArcObjects develops internet application.ArcGIS API for Flex consists of a plurality of packets, often
Individual bag comprises again the class that several are concrete.
The effect of main several bags is as follows:
Com.esri.ags: be the core in all component storehouse, it is the support of whole Component Gallery, all of Function Extension
All unwrapped the beginning by this.Class important including Map, Graphic etc..
Com.esri.ags.events: event class, for the transmission of message between object and object.
Com.esri.ags.geometry: include the basic geometric elements such as point, line, surface.
Com.esri.ags.layers: provide ArcIMS figure layer, network service figure layer and the support of drawing design layer and
Application.
Com.esri.ags.symbol: symbolization instrument is provided.
Com.esri.ags.components: provide such as the visual control such as editor, scale.
Com.esri.ags.tasks: provide more predefined frequently-used data to process function, including inquiry, location
Deng.
The present invention carries out geographical national conditions monitoring system client exploitation based on ArcGIS API for Flex, with
ComGIS Component Gallery ArcObjects carries out server end exploitation.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is provided that a kind of geography based on GIS network service with rich internet application
National conditions monitoring system, to solve the problems such as existing geographical national conditions monitoring system functional is single.
For solving problem above, the technical solution used in the present invention is as follows: a kind of based on GIS network service and rich internet
The geographical national conditions monitoring system of application, uses distributed frame and B/S pattern to carry out system realization, use presentation layer, application layer,
The three-tier structure system of data Layer；Wherein, presentation layer: provide user service, responsible system is mutual with user's, provides the user
Friendly interface based on Flex, is used for representing geographical national conditions monitoring information and receiving user's input, receives and Analysis server
Transmit the data of coming, and show on the client；Application layer: connect data base according to the request of user, and use corresponding
Geographical national conditions monitoring is analyzed model and is analyzed processing, and result is beamed back client；Data Layer: take for systems with data
Business, accepts the request of data of application layer, it is achieved the insertion of geographical national conditions monitor database, inquires about, revises and update operation；Including
Geographical national conditions monitor database Geodatabase and database engine, geographical national conditions monitor database includes again trend of the times data base
And historical data base；In three-layer architecture, presentation layer, application layer, data Layer are three independent parts, are distributed in network
On different computers on, formed distributed architecture, be attached by communications protocol between them.
As preferably, system uses the design of modular structure, processes including geographical national conditions browsing data, data, monitors
Analyze and data export four functional modules.
As preferably, the trend of the times, history and the Monitoring Result data of geographical national conditions Monitoring Data library storage geography national conditions monitoring,
Including Remote Sensing Image Database, geographical national conditions Fundamental database, topography and geomorphology data base, vegetative coverage data base, geographical boundary
Data base and transportation network data base；Wherein, Remote Sensing Image Database is topmost original data source, remaining geographical national conditions prison
Survey data to be obtained by remote sensing image extraction, geographical national conditions generaI investigation mode；Geographical national conditions monitor database uses based on towards right
As the Geodatabase data model of technology and relational database realizes；It is enterprise that geographical national conditions monitor database realizes rank
Level Geodatabase.
As preferably, presentation layer specifically includes geographical national conditions monitoring, monitoring result is expressed, Monitoring Data updates, monitoring knot
Fruit output, Monitoring Result management and Analysis on monitoring data.
As preferably, application layer includes GIS Server and Web server, wherein GIS Server host's map simultaneously
Service, image service and ArcObjects, use ArcObjects to process complex space function when necessary；GIS Server
Analyzing model and logical model including geographical national conditions monitoring, ArcObjects is by ArcSDE and geographical national conditions monitor database number
According to communication.
Beneficial effects of the present invention: carrying out geographical national conditions monitoring is accurately to grasp the important means of national conditions and strength, be
Implement country's Important Project and the important leverage of Major Strategic.Remote sensing technology and global navigation satellite location technology etc. is utilized to realize
Geographical national conditions information integral gathers and quickly updates, and utilizes geographic information system technic, multidimensional spatiotemporal data structure technology, thing
Networking technology, spatial information cloud computing technology etc. realize automatic excavating and the quantitative analysis of geographical national conditions information, utilize net
Network geographic information system technology etc. carries out real-time release and the interactive services of geographical national conditions, can be governments at all levels and relevant department
Authoritative, objective, geographical national conditions information service accurately is provided.To meet that Government management decision-making is scientific, national economy with
The urgent needs to geographical national conditions information service such as social development informationization, Economic Growth Mode Transformation.The present invention utilizes network
The advanced technologies such as geographic information system technology, network service and rich internet application RIA, by using techniques below route: (1)
Using Geodatabase to set up geographical national conditions monitor database, (2) are issued REST geography national conditions by ArcGIS Server and are supervised
Surveying data, services, (3) combine CmGIS Component Gallery ArcObjects, and design geographical national conditions monitoring analysis and calculation model, (4) use
ArcGIS API for Flex exploitation client geography national conditions monitoring application；Construct a geographical national conditions monitoring network opening
Platform prototype system.By this system, the public can needing some region of natural, society according to oneself whenever and wherever possible
Raw information and the analysis results information of the key elements such as meeting is economic and cultural are retrieved efficiently and inquire about；Each specialized department then may be used
Geographical national conditions monitoring is inputted online and updates, it is possible to expands monitoring analysis model and carry out special topic geographical national conditions prison
Survey, thus preferably provide supporting for management decision-making.
Application result shows, it is flexible that this system has result, extendible, load balance, and client application is convenient, abundant,
The advantages such as exploitation is quick.
Accompanying drawing explanation
Fig. 1 is geographical national conditions monitoring system architecture diagram；
Fig. 2 is geographical national conditions monitoring system functional function structure chart；
Fig. 3 is geographical national conditions monitor database structure chart；
Fig. 4 is certain petroleum pipeline network diagram；
Fig. 5 is the partial code schematic diagram loading map with navigation；
Fig. 6 is geographical national conditions Monitoring Data editor's schematic diagram；
Fig. 7 is the coverage relief area figure of certain engineering activity；
Fig. 8 is buffer zone analysis main code schematic diagram；
Fig. 9 is that (white circle position represents the place that earthquake occurs, circle size for the earthquake occurred in the recent period and earthquake magnitude schematic diagram
Represent earthquake magnitude).
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearer, develop simultaneously embodiment referring to the drawings, right
The present invention is described in further details.
In order to realize geographical national conditions monitoring system, present invention employs distributed frame and B/S pattern carry out system realization,
Use presentation layer, application layer, the three-tier structure system of data Layer.The Organization Chart of whole system is as shown in Figure 1.
(1) presentation layer: Main Function is to provide user's service, is responsible for the mutual of system and user, provide the user based on
The friendly interface of Flex, is used for representing geographical national conditions monitoring information and receiving user's input, receives and Analysis server transmission
The data come, and show on the client.Owing to applying for RIA, therefore only need to send request of data to server when necessary,
Thus alleviate the burden of server and client side.
(2) application layer: Main Function is that the request according to user connects data base, and uses corresponding geographical national conditions monitoring
Analyze model to be analyzed processing, result is beamed back client.GIS Server simultaneously host's Map Services, image service with
And ArcObjects, ArcObjects process is used when necessary (such as the ArcGIS API inefficient work of for Flex)
Complex space function.
(3) data Layer: Main Function is for systems with data service, and it accepts the request of data of application layer, it is achieved ground
The insertion of reason national conditions monitor database, inquire about, revise, the operation such as renewal.By geographical national conditions monitor database and database engine
Composition.Geographical national conditions monitor database includes again trend of the times data base and historical data base such that it is able to realize geographical national conditions data
Review and com-parison and analysis.Database engine ArcSDE is the data engine between application program and data base, for efficient
Leave the various spatial datas in relational database in.ArcSDE supports multi-user, supports remote business disposal and version pipe
Reason, supports popular DBMS such as Oracle, Microsoft SQL Server, IBM DB2 etc..It is many that ArcSDE solves DBMS
Sample and complexity, provide the user great motility.It is noted that for realizing geographical national conditions Monitoring Data more
Newly, it is necessary to use the Geodatabase of enterprise version to realize geographical national conditions monitor database.
In three-layer architecture, presentation layer, application layer, data Layer are three independent parts, can be distributed in network
On different computers on, formed distributed architecture, be attached by communications protocol between them.This system is tied
Structure improves motility and the independence of whole system.
For realizing the construction object of geographical national conditions monitoring system, this system should possess online updating, network geography
National conditions monitoring information issues, inquire about, share, manage and the function such as analysis.In order to make system have extensibility, system is being entered
During row functional design, present invention employs modular construction design method.The current design function of whole application system includes
Four functional modules such as geographical national conditions browsing data, data process, monitoring analysis, data output.Set owing to have employed modularity
Meter, should have stronger independence between each functional module, therefore necessary function can be modified easily and expand.Whole
The functional module structure of individual system is as shown in Figure 2.
Geographical national conditions monitor database is the foundation stone of open systems, provides data support for open systems, the geographical state of storage
The trend of the times of feelings monitoring, history and Monitoring Result data.By Remote Sensing Image Database, geographical national conditions Fundamental database, topography and geomorphology
Data base, vegetative coverage data base, geographical boundary data base, transportation network database subdata base composition.Wherein, remote sensing shadow
As data base is topmost original data source, remaining geographical national conditions Monitoring Data is extracted by remote sensing image, geographical national conditions are general
The mode such as look into obtains.Geographical national conditions monitor database uses based on Object-oriented Technique and the Geodatabase of relational database
Data model realizes, to utilize Geodatabase to set up on RDBMS, unification, intellectuality, the advantage such as object-oriented.Geographical
It is enterprise-level Geodatabase that national conditions monitor database realizes rank, and this is a kind of use Large-scale Relational Database storage data,
And the management mode of data is managed by Spatial Data Engine, mass data can be stored by this mode easily, supports
Long routine and version management, also support multi-user concurrent operation in a network environment.Enterprise-level Geodatabase is best suited for
Distributed GIS application under network environment.Geographical national conditions monitor database structure chart is as shown in Figure 3.
Embodiment: geographical national conditions monitoring system realizes and application
1 creates geographical national conditions Monitoring Data resource
Before issuing geographical national conditions Monitoring Data service, geographical national conditions Monitoring Data resource need to be created by ArcMap.Lead
Enter to be stored in the geographical national conditions Monitoring Data of Geodatabase, by the menu " File " of ArcMap-" Share As "-
" Services "-" Save a service definition file " saves as service definition file, extends entitled SD.
2 issue geographical national conditions Monitoring Data service
Geographical national conditions monitoring REST data, services can be issued by ArcCatalog, it is possible to by ArcGIS Server
Manager issues.Log in ArcGIS Server Manager, select issuing service option, select the SD file just created, just
Data, services can be issued.In order to realize the editor of geographical national conditions Monitoring Data, Feature Access option need to be chosen, i.e. need
It is issued as Map Services and Feature Service.After data, services is issued, can preview map, it is possible to by Service Directory
Check the details of service.Geographical national conditions Analysis on monitoring data model also can be issued as network service to realize GIS function
Share.After geographical national conditions Monitoring Data service is issued, data, services can be accessed by ArcGIS API for Flex and realize visitor
The service logic of family end.Map datum load with browse main by the Map of ArcGIS API for Flex,
The classes such as NavigationTool realize.Fig. 4 shows certain petroleum pipeline network, and Fig. 5 shows the part loading map with navigation
Code.
3 geographical national conditions Monitoring Data editors
The renewal of geographical national conditions Monitoring Data and editor mainly use AttributeInspector,
The classes such as FieldInspector, Query, AttributeInspectorEvent, FeatureLayer, Graphic.It is main
Process is for when user clicks on certain key element, or after obtaining choice set by Query inquiry, pop-up dialogue box also shows component attributes
For editor.Fig. 6 shows the attribute edited of a certain oil transportation station.
4 buffer zone analysis
Must issue the i.e. geometry service of Geometry service before carrying out buffer zone analysis, geometry service is used for assisting application
Program performs various geometrical calculation, such as relief area, simplification, area and length computation and projection etc..Additionally, ArcGIS Web
API uses geometry service to create and revise each key element geometry in Web editing process.Geometry service is fine-grained for using
ArcObjects or geographical processes this type of calculating of service execution and provides a kind of alternative method.Carry out buffer zone analysis mainly to use
Class have Graphic, graphicsLayer, GeometryService, BufferParameters etc..Fig. 7 is on this base map
Show the coverage of certain engineering activity.Core code is as shown in Figure 8.
5 earthquake informations are issued
The geological data occurred in the recent period issued by seismological bureau, by ArcGIS API for Flex, can be at background
Map symbolization and display earthquake conditions, Fig. 9 shows the earthquake and earthquake magnitude being to occur in the recent period, clicks on certain earthquake icon, moreover it is possible to
Solution much of that further information.
Claims (5)
1. a geographical national conditions monitoring system based on GIS network service with rich internet application, it is characterised in that use distribution
Formula structure and B/S pattern carry out system realization, use presentation layer, application layer, the three-tier structure system of data Layer；Wherein, performance
Layer: provide user service, responsible system is mutual with user's, provides the user friendly interface based on Flex, is used for representing
Geographical national conditions monitoring information and reception user's input, receive and Analysis server transmit next data, and show on the client
Show；Application layer: connect data base according to the request of user, and the corresponding geographical national conditions monitoring of employing is analyzed model and is analyzed locating
Reason, beams back client by result；Data Layer: for systems with data service, accept the request of data of application layer, it is achieved geographical
The insertion of national conditions monitor database, inquire about, revise and update operation；Including geographical national conditions monitor database Geodatabase and
Database engine, geographical national conditions monitor database includes again trend of the times data base and historical data base；In three-layer architecture, table
Existing layer, application layer, data Layer are three independent parts, on the different computer being distributed on network, form distributed body
Architecture, is attached by communications protocol between them.
A kind of geographical national conditions monitoring system based on GIS network service with rich internet application the most according to claim 1,
It is characterized in that being, system uses the design of modular structure, and including geographical national conditions browsing data, data process, monitoring is analyzed
Four functional modules are exported with data.
A kind of geographical national conditions monitoring based on GIS network service with rich internet application the most according to claim 1 and 2 is
System, it is characterised in that the trend of the times, history and the Monitoring Result data of geographical national conditions Monitoring Data library storage geography national conditions monitoring, bag
Include Remote Sensing Image Database, geographical national conditions Fundamental database, topography and geomorphology data base, vegetative coverage data base, geographical boundary number
According to storehouse and transportation network data base；Wherein, Remote Sensing Image Database is topmost original data source, remaining geographical national conditions monitoring
Data are extracted by remote sensing image, geographical national conditions generaI investigation mode obtains；Geographical national conditions monitor database uses based on object-oriented
The Geodatabase data model of technology and relational database realizes；It is enterprise-level that geographical national conditions monitor database realizes rank
Geodatabase。
A kind of geographical national conditions monitoring system based on GIS network service with rich internet application the most according to claim 3,
It is characterized in that, presentation layer specifically includes geographical national conditions monitoring, monitoring result is expressed, Monitoring Data updates, monitoring result exports,
Monitoring Result management and Analysis on monitoring data.
A kind of geographical national conditions monitoring system based on GIS network service with rich internet application the most according to claim 4,
It is characterized in that, application layer includes GIS Server and Web server, wherein GIS Server host's Map Services, shadow simultaneously
As service and ArcObjects, ArcObjects is used to process complex space function when necessary；GIS Server includes ground
Model and logical model are analyzed in reason national conditions monitoring, and ArcObjects is led to by ArcSDE and geographical national conditions Monitoring Data database data
Letter.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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