CN101763347A - GIS (Geographical Information System) interface platform as well as network GIS management system and management method - Google Patents
GIS (Geographical Information System) interface platform as well as network GIS management system and management method Download PDFInfo
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Abstract
The invention discloses a GIS interface platform as well as network GIS management system and management method. The GIS interface platform comprises a plurality of interfaces, a data converting device and an interface service data management device, wherein the interfaces are used for receiving service data and space data from a plurality of application systems; the data converting device is used for carrying out format conversion on business data; and the interface service data management device is used for storing the service data after format conversion, carrying out association with the space data and transmitting the space data and the converted service data to a GIS server. The GIS interface platform as well as the network GIS management system and the management method enable the GISs of different systems to synchronize during maintenance by the uniform interface platform, maintain the consistency of data and improve the experience of users.
Description
Technical field
The present invention relates to a kind of GIS technology, relate in particular to a kind of GIS interface platform, network GIS management system and management method.
Background technology
Geographic Information System (GIS, Geographic Information System) is a kind of computer based instrument, and it can be carried out to figure and analysis to thing and the event that exists on earth.The GIS technology integrates the visualization effect of this uniqueness of map and geography-analysis function and general database manipulation (for example inquiry and statistical study etc.).This ability makes GIS distinguish mutually with other infosystems, thus make its in the public and individual enterprises and institutions widely the explanation incident, predict the outcome, have practical value in the plan strategy etc.
Many cover IT system are all had in each enterprise of telecommunications industry, comprise the network supporting system, business support system and IT application in enterprises system.A lot of application of these systems have adopted GIS to represent form.This form can directly combine database data with map datum, have characteristics such as directly perceived, convenient.But the part of the GIS in these systems all is independent the construction, independently GIS server promptly is set, the interface of stand-alone development special use, and independent maintenance self GIS platform and electronic chart.This situation is very general in each enterprise of the communications industry.The duplicate construction of each GIS of system has caused the repetition and waste in aspects such as GIS platform, numerical map investments, and each system all needs a GIS troop to safeguard, has wasted a large amount of manpowers.Because each system digits map maintenance work asynchronous makes that each is inconsistent in the data of map aspect representing, and service application has been produced certain influence.Therefore, how to change the situation of GI platform duplicate construction in the past, unified undertaking of construction level GIS platform is shared for each operation system and has been become the task of top priority.
Summary of the invention
The objective of the invention is to, at the GIS of each system duplicate construction in the prior art caused each is inconsistent in the data of map aspect representing, thereby make the user to the defective that the Experience Degree of GIS business descends, a kind GIS interface platform, network GIS management system and management method are provided.
This GIS interface platform comprises: a plurality of interfaces, DTU (Data Transfer unit) and interface management apparatus, and interface is used for receiving business datum and spatial data from a plurality of application systems; DTU (Data Transfer unit) is used for described business datum is carried out format conversion; The interface business data administrator is used to store the business datum after the described format conversion, carries out relatedly with described spatial data, and the business datum after spatial data and the conversion is sent to the GIS server.
This network GIS management system comprises: GIS interface platform, GIS server and data storage device, the GIS interface platform, be used for being connected with a plurality of application systems and receiving spatial data and business datum, after described business datum carried out format conversion, business datum after spatial data and the conversion is carried out related, and send to the GIS server; The GIS server is used for carrying out the corresponding business operation according to the business datum after described spatial data and the conversion; Data storage device, the business datum after being used to store described spatial data and change.
This network GIS management method comprises: the business datum that receives is carried out format conversion; Business datum after the described format conversion is handled and sent in the GIS server.
GIS interface platform of the present invention, network GIS management system and management method by unified interface platform, make that the GIS of different system is synchronous when safeguarding, keep the consistance of data, improve user's Experience Degree.
Description of drawings
Fig. 1 is the structural drawing of first embodiment of the invention network GIS management system;
Fig. 2 is the structural drawing of first embodiment of the invention GIS interface platform;
Fig. 3 is the process flow diagram of first embodiment of the invention network GIS management method;
Fig. 4 is the structural drawing of second embodiment of the invention data storage device;
Fig. 5 is the data structure diagram of second embodiment of the invention based on figure layer storage space data;
Fig. 6 is the structural drawing of third embodiment of the invention edition management device;
Fig. 7 is a third embodiment of the invention release status tree construction synoptic diagram;
Fig. 8 is the process flow diagram of third embodiment of the invention network GIS management method.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, in the first embodiment of the invention, the network GIS management system comprises: GIS interface platform 20, GIS server 40 and data storage device 60.Wherein, GIS interface platform 20 is used for being connected with a plurality of application systems and receiving spatial data and business datum, described business datum is carried out format conversion after, with spatial data with the conversion after business datum carry out related after, send to GIS server 40; GIS server 40 is used for carrying out the corresponding business operation according to the business datum after described spatial data and the conversion; Data storage device 60, the business datum after being used to store described spatial data and change.
As shown in Figure 2, GIS interface platform 20 comprises: a plurality of interfaces 22, DTU (Data Transfer unit) 24 and interface management apparatus 26.Interface 22 is used for receiving business datum from a plurality of application systems; DTU (Data Transfer unit) 24 is used for described business datum is carried out format conversion, for example, business datum is converted to the standard XML form; Interface business data administrator 26 is used to store the business datum after the described format conversion, carries out relatedly with described spatial data, and the business datum after spatial data and the conversion is sent to GIS server 40.
Preferably, GIS interface platform 20 also comprises interface customizing device 28, is used for according to the application system that will connect described interface being configured.
As shown in Figure 3, first embodiment of the invention network GIS management method comprises:
Step 802 is carried out format conversion to the business datum that receives;
Step 804 is handled and is sent in the GIS server the business datum after format conversion.
First embodiment of the invention, by unified GIS interface platform is set, the business datum of each application system all is converted to the XML form, realizes standardization, the standardization of system, reduce operation system as far as possible by calling the development amount that network GIS Platform Implementation GIS represents
GIS management system among first embodiment is by providing open GIS operation standard interface module to each application system, operation system can be finished GIS and represents when carrying out applied software development by directly calling these interface modules, has reduced the GIS application and development workload of operation system to greatest extent.
Operation system must be carried out data based on the standard interface that the GIS interface platform provides and be inserted the synchronizing function exploitation, and the corresponding object of operation system must increase coordinate attributes, with keep object data synchronously, the development that relates to mainly contain following some:
(1) establishment of professional graph data is called:
If create object based on graphical interfaces, at first in the GIS interface platform, open and create object transaction, carry out attributes object based on operation system then and create, the inside ID that creates object is returned to operation system, finish the establishment affairs of GIS interface platform.If create object based on operation system, must before creating end, open the establishment object transaction of GIS interface platform, and import coordinate, the internal correlation ID of related object into GIS interface platform interface, finish the GIS interface platform and create affairs.
(2) deletion of professional graph data is called:
If based on graphical interfaces deletion object, at first in the GIS interface platform, open the deletion object transaction, carry out the attributes object deletion based on operation system then, finish the establishment affairs of GIS interface platform at last.
If based on operation system deletion object, must before deletion finishes, open the deletion object transaction of GIS interface platform, and import internal correlation ID into GIS interface platform interface, finish GIS interface platform deletion affairs.
(3) modification of professional graph data is called:
For attribute modification, needn't call the GIS interface, because the GIS interface platform does not need the management service attribute data
For the modification of coordinate, be based on operation system attribute modification coordinate as crossing, coordinate must be imported into the GIS interface and carry out the graph position modification, if revise, amended coordinate must be updated to operation system based on graphical interfaces.
(4) calling of figure locating interface:
Import inner ID, object coordinate data into by business datum, call GIS interface platform locating interface, if this figure not in the GIS interface platform then generates respective graphical according to coordinate that imports into and ID automatically.
(5) the GIS interface platform provides operation-interfaces such as graphical query, statistics
Operation system is called the query statistic interface of GIS interface platform according to the related service rule, carries out operations such as graphical query, statistics
(6) the GIS interface platform provides the data check function
Mainly data are carried out automatic verification by internal correlation ID and resource type.Check the consistance of data, misdata is listed, and debugging functions are provided.
As shown in Figure 4, in the second embodiment of the invention, data storage device bag 60 is drawn together: spatial data memory module 62 is used for the storage space data; Business datum memory module 64 is used for the storage service data.
Because the business datum of all application systems is finished the management and the analysis operation of each service needed on this basis all based on spatial data.Do not obscure, independently can allow each professional spatial data memory module of sharing 62 with other non-space data so spatial data must be stored in one, the business datum of application system is preserved by business datum memory module 64.Be coupled by longitude and latitude between business datum and the spatial data.By separating of business datum and spatial data, realized " the application independence " of generalized information system.
Preferably, comprise a plurality of figure layer sub module stored in the spatial data memory module 62, each figure layer sub module stored is used for the similar graphical element of identical substantive significance of storage space data and space characteristics.By being that base unit makes up spatial database to scheme layer, making can the layering stack to the analysis of geographical entity key element.
More preferably, can also store spatial data, to realize that the geographical entity key element is carried out the layering stack according to unified geographic coordinate.
In addition, spatial data can Oracle 10g mode store, with the continuous seamless splicing of implementation space data, promptly when spatial geography data is put in storage, will stride the map sheet key element and merge into a key element, keep integrality, continuity and the consistance of atural object with strictness.
Because the IT system of follow-up access has different business demands, needed space geometry Resource Properties must vary, the All Layers data can not have been customized at the very start, so native system, has designed complete dynamic extendible layer management pattern based on this, no matter be the base electronic map, still rear end O﹠M spatial data, or front-end market attendant applications spatial data all is core with the drawing, figure layer object represents as the foreground, takes the secondary custom model to expand.
As shown in Figure 5, drawing is exactly a map configuration document, utilizes it can call corresponding figure layer data to the interface when map shows, and shows different-style according to configuration, and the process of drawing customization comprises:
At first import graph data, each figure layer is exactly table of database;
Create, revise or delete the figure layer in the drawing then, coordinate system that can the revisions on drawings correspondence also can be each figure layer customization different-style.
The GIS spatial data is the needed public information of each operation system, is to gather and renewal by the Research on Geographical Information Generalization platform is unified, and the data that need to gather should comprise the following aspects: city map---pure map, comprise area dividing, administrative division, greenery patches, the street, main terrestrial reference etc.; Road network information---as optional path searching, comprise " road axis " and " based on the topology information of highway section and node " two parts; Attribute informations such as the position of Bus information---bus stop on map and station preface; Points such as POI information---restaurant, hotel, office building position information adds the attribute information of expansion; And some other applied geography information.Generally require the above city of prefecture-level city to keep annual 4 times or higher renewal frequency, other cities keep annual 2 times or higher renewal frequency, to guarantee the accuracy of map datum.
The miscellaneous service data only write down the relational graph coordinate data at the GIS of enterprise platform, and (x y) reaches the inside ID (inside ID correlation rule according to operation system generate this ID) related with operation system.Attribute data for business datum is managed voluntarily by operation system.Attribute data generally comprises following content: the line facility data: outside wire road facilities such as pipeline, optical cable, people's well; Wireless base station, sector and relevant wireless outdoor space facility thereof; Big customer's location point; The management area; The administrative region; Other space facilities.
Generally, in GIS uses, realize data write and management by the ArcSDE spatial database engine, to the always a plurality of transaction concurrency operations of the operation of data memory storage 60, and the identical data of possibility concurrent access, therefore need go to guarantee that this concurrent operations can not destroy the integrality of data by a kind of mechanism, guarantee that issued transaction can obtain correct result, therefore, ensure the feasibility and the correctness of spatial data concurrent processing, safeguard the profound state of spatial data.
As shown in Figure 6, in the third embodiment of the invention, the network GIS management system also comprises: edition management device 50 comprises: version generation module 52, version processing module 54 and version merge module 56.
Version merges module 56, is used for the version after handling is merged, and stores in the spatial data memory module 62.
Owing to a plurality of versions are set, and have inheritance between the version, the record child release all uses a unique state ID to describe with respect to the variation of father's version, and the essence of version is the state of a name.As shown in Figure 7, the relation between each state forms State Tree.The edition data that the user sees, corresponding on the concept database is a view.Three types of tables in this view, have been comprised, for example B, A, D.The B table is a table of depositing primary data, and the A table is deposited the table that increases record newly, and its structure and B table is just the same except the row of many storage configurations.The D table record to the deletion information of original record (really deletion, the only action of record deletion).
Any like this editing operation just is recorded in A table and the D table, is equivalent to according to the state of version sensing number the content of B, A, three tables of D be merged and will obtain current version data (edited data), can be summarized as a formula simply:
Vs＝B∪As～Ds
Wherein Vs represents the set of records ends of a certain version (state s), the record that the As representative increases in state s, and what Ds represented is the record of deleting among the state s.The set of records ends of state s equals the original records set and increases the union of set of records ends and remove the record of having deleted.
Third embodiment of the invention has realized that by edition management device the multi-user concurrent of data, services is handled, and has effectively guaranteed the correctness for the eventful affair concurrent processing of spatial data.On this basis, incremental update that can the implementation space database and historical filing.
The ArcSDE service has the restriction of maximum example linking number, version mechanism can guarantee the carrying out of eventful affair concurrent processing, this is based on the list structure design of relational database, but when the example linking number surpasses the ArcSDE maximum number of connections, unnecessary connection will be asked failure, therefore, the reasonable setting of ArcSDE linking number also is to guarantee one of key factor that multi-user concurrent is handled.
Giomgr.defs file logging under the ArcSDE installation directory configuration information of ArcSDE, wherein parameters C ONNECTIONS writes down maximum example linking number, TCPKEEPALIVE is TRUE, whether invalid expression can be provided with by the KEEPALIVETIME in the registration table and detect connect the time interval, and invalid connection is with auto-destruct.
In addition, the problem of the angle analysis example linking number that can also distribute from server resource.Windows has been each ArcSDE service assignment the internal memory of a fixed size (acquiescence 512K), each ArcSDE process approximately needs the 9K internal memory, therefore the linking number of ArcSDE acquiescence is 512/9 to approximate 48, can revise poke in this, change 512K into 1024K, if linking number surpasses 250, can make 2048K into.Need to revise registration table:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session?Manager\SubSystems\Windows。
SharedSection in the project, with former SharedSection=1024, the 3rd of 3072,512 kinds changes SharedSection=1024 into, 3072,1024.
ArcSDE directly connects, can allow application get around the ArcSDE service, directly visit the data in the ArcSDE spatial database, the linking number of this moment no longer is subjected to the restriction of ArcSDE service, compare the method for attachment of using the ArcSDE service, need be when directly connecting at applications client installation database client software, and carry out parameter configuration.
The ArcGIS application service layer comprises ArcGIS Server and ArcIMS, is in system architecture between application server and the Spatial Data Engine, and they are responsible for the work of spatial data request, and the software and hardware cluster is one of actual mechanism of high concurrent visit.
ArcGIS Server generally comprises ADF, SOM, SOC three parts, is respectively application development framework, Server Object Manager, Server object container.The SOC bearing space is analyzed and the pressure of handling, and in order to satisfy the requirement of ArcGIS Server server high-performance and high concurrent processing, can use many SOC servers to form the SOC cluster, tackles the requirement that multi-user concurrent is handled from safety and two aspects of performance.
Consider from fine-grained level, ArcGIS Server service has two kinds of different set-up modes of pondization and non-pondization, the pond service can be kept at object pool with example, when example after being used by application process, turn back to again in the server object pond, call for other application processes, but not the example of pond service will be destroyed after using, again create when application process needs, on efficient, can lose like this, be generally used for the profound state of operation that has.To concurrent demanding application generally is stateless, so the pond service has alleviated the pressure of multi-user access to a certain extent.
ArcGIS is the most basic data transmission to data write operation in the single spatial database, and its transmission mechanism is based on the data access design of relational database.For spatial database, the incremental update method of data, synchronization replication technology and to the support in multi-source data storehouse are the actual mechanisms that guarantees spatial data safety, efficient, distributed management.
Data Update mainly is divided into the Data Update dual mode of the Data Update and the incremental mode of snapshot mode.Snapshot model reflects the temporal-spatial evolution process of geographical phenomenon with the pairing map of a series of states continuously.Continuously snapshot is only represented the state of spatial data just as taking a picture, and lacks the clearly performance to the object variation that phenomenon comprised, the topological relation of object on putting into practice of therefore can not determine geographical phenomenon and being comprised.Because snapshot is the complete storage to status data continuously, be easy to realize, but data redudancy is very big.
In general the application, it is a very little part after all for the spatial geography data of entire database that spatial data changes, if according to the information of these variations, adopt incremental update, so just can solve more these problems of new data of snapshot mode well.Data increment is meant the content that the some stationary states of relative data change later on.The mode of incremental update has following advantage:
What 1, submit to is the content of change, can change statistics at an easy rate.
2, submit to data volume very little, inspection can only be carried out the part of change, has therefore greatly reduced the data processing work amount.
3, batch updating not necessarily can import increment in the database at any time, has therefore avoided the unified moment to upgrade and the working pressure that causes.
Data Replication Technology in Mobile can be used for satisfying the needs of data backup and disaster tolerance.Determine to use which kind of technology to depend on to the consideration of system requirements and the benefit and limitation of technology itself.Spatial database engine can adopt the several data copy mode to satisfy business demand.The first, spatial database engine has the synchronization replication mechanism of self, and the second, spatial database engine makes up based on conventional DBMS, can adopt the data backup function of DBMS to realize duplicating of data.
The spatial database synchronization replication allows spatial data is distributed on two or more spatial databases, and the editor of one of them spatial database can periodically be synchronized on other servers.DBMS duplicates and whole spatial database can be duplicated, but the function that can not provide synchronization replication that spatial information is filtered, and the part complex data type can not be correctly validated, as topology, network.Therefore, perhaps total data can not cause problem synchronously, when the sync section data, just may produce the inconsistent of data structure, adopts the synchronization replication of spatial database to be undoubtedly better choice.
The synchronizing function of spatial database engine can be between two or more spatial databases the duplicating of implementation space data with synchronously.We can the copy space database in specific factor kind, also can the definition space filtercondition, which factor kind specific data concentrates be comprised in the duplicate.Copy type commonly used has:
1, detects/check in and duplicate: detect/check in and duplicate permission, be synchronized to then in father's duplicate in sub-duplicate inediting data.In case data are by synchronously, the user just can not further synchronous again editor after this.Further edit if desired, you must create the new duplicate that detects.
2, unidirectional replication: unidirectional replication allows the variation uncle duplicate of data is repeatedly sent in the sub-duplicate.Variation can not oppositely send to father's duplicate from sub-duplicate.The data of father's duplicate are editable, but the data of sub-duplicate should be read-only.
3, bidirectional replication: bidirectional replication allows the variation of data to transmit repeatedly between father's duplicate and sub-duplicate.The data of father and son's node all must be versioned.
Spatial database engine is supported the synchronization replication under LAN (Local Area Network), wide area network or the disconnected environment, if disconnected environment is created duplicate and synchronous process and can be passed through workflow, comprises that the mode of file transfer realizes.Based on Shandong tobacco network structure and application demand, professional geographic information database can adopt the mode of unidirectional replication to come the synchronization replication of organization space database, and basic geographic information database adopts the mode that detects/check in.
Synchronization replication technology based on spatial database engine realizes the distributed deployment of the professional geographic information database of whole unit and the design of long-distance disaster.For example in the application deployment of unit and subunit, we can create duplicate by the registration data with existing with the central database of whole unit as a long-distance disaster database.The central database of unit can be used as full database and data backup center, be not used in direct editor, all renewals are transmitted to the disaster tolerance database by the subunit database, therefore can consider to realize by the unidirectional replication method of spatial database engine, owing to be unidirectional replication, data can not produce conflict, have so just guaranteed the consistance of unit and subunit data.
As shown in Figure 8, third embodiment of the invention network GIS management method also comprises:
Step 806 is duplicated the spatial data of reception, generates one or more versions;
Step 808 is handled described version according to business datum;
Step 810 merges the version after handling, and stores in the spatial data memory module.
More preferably, for the storage of spatial data, difference storage service data and spatial data in described spatial data memory module.And,, store the similar graphical element that has identical substantive significance and space characteristics in the spatial data memory module into same figure layer by figure layer storage space data.
The GIS interface platform of the above embodiment of the present invention, network GIS management system and management method have the following advantages:
1, by unified interface platform, makes that the GIS of different system is synchronous when safeguarding, keep the consistance of data, improve user's Experience Degree; Reduce the developer, save cost;
2, reach multi-user concurrent by the version mode and handle, make a plurality of users to make amendment to same target simultaneously, and revise and normally to show;
3, the data storage method that adopts business datum to separate with spatial data makes that generalized information system geographic information data and application are irrelevant, and by being that base unit makes up spatial database to scheme layer, feasible analysis to the geographical entity key element can superpose in layering.
It should be noted that: above embodiment is only unrestricted in order to explanation the present invention, and the present invention also is not limited in above-mentioned giving an example, and all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the claim scope of the present invention.
Claims (12)
1. a GIS interface platform is characterized in that, comprising: a plurality of interfaces, DTU (Data Transfer unit) and interface management apparatus,
Described interface is used for receiving business datum and spatial data from a plurality of application systems;
Described DTU (Data Transfer unit) is used for described business datum is carried out format conversion;
Described interface business data administrator is used to store the business datum after the described format conversion, carries out relatedly with described spatial data, and the business datum after spatial data and the conversion is sent to the GIS server.
2. GIS interface platform according to claim 1 is characterized in that, described DTU (Data Transfer unit) is further used for described business datum is converted to the XML form.
3. GIS interface platform according to claim 1 is characterized in that, also comprises:
The interface customizing device is used for according to the application system that will connect described interface being configured.
4. a network GIS management system is characterized in that, comprising: GIS interface platform, GIS server and data storage device,
Described GIS interface platform is used for being connected with a plurality of application systems and receiving spatial data and business datum, described business datum is carried out format conversion after, the business datum after spatial data and the conversion is carried out related, and send to the GIS server;
The GIS server is used for carrying out the corresponding business operation according to the business datum after described spatial data and the conversion;
Described data storage device, the business datum after being used to store described spatial data and change.
5. network GIS management system according to claim 4 is characterized in that, described data storage device comprises:
The spatial data memory module is used to store described spatial data;
The business datum memory module is used to store described business datum.
6. network GIS management system according to claim 5, it is characterized in that, described spatial data memory module comprises: a plurality of figure layer sub module stored, each figure layer sub module stored is used for storing the similar graphical element of identical substantive significance of described spatial data and space characteristics.
7. network GIS management system according to claim 5 is characterized in that, also comprises: edition management device, and described edition management device comprises:
The version generation module is used for duplicating the spatial data of described spatial data memory module, generates one or more versions;
The version processing module is used for according to described business datum described version being handled;
Version merges module, is used for the version after the described processing is merged, and stores in the described spatial database.
8. a network GIS management method is characterized in that, comprising:
The business datum that receives is carried out format conversion;
Business datum after the described format conversion is handled and sent in the GIS server.
9. network GIS management method according to claim 8 is characterized in that, also comprises:
Duplicate the spatial data of reception, generate one or more versions;
According to described business datum described version is handled;
Version after handling is merged, and store in the spatial data memory module.
10. network GIS management method according to claim 9 is characterized in that, also comprises:
In described spatial data memory module, store described business datum and described spatial data respectively.
11. network GIS management method according to claim 10 is characterized in that, also comprises:
By the described spatial data of figure layer storage, store the similar graphical element that has identical substantive significance and space characteristics in the described spatial data memory module into same figure layer.
12. any described network GIS management method in 11 is characterized in that according to Claim 8, the described operation that the business datum that receives is carried out format conversion specifically comprises:
Described business datum is converted to the XML form.
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