CN102004748A - Heterogeneous geographic data query system and method - Google Patents
Heterogeneous geographic data query system and method Download PDFInfo
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- CN102004748A CN102004748A CN 201010164114 CN201010164114A CN102004748A CN 102004748 A CN102004748 A CN 102004748A CN 201010164114 CN201010164114 CN 201010164114 CN 201010164114 A CN201010164114 A CN 201010164114A CN 102004748 A CN102004748 A CN 102004748A
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Abstract
The invention provides geographic data query system and method, in particular to heterogeneous geographic data query system and method. The system at least comprises one signal receiving device, one heterogeneous data storage device, a complete heterogeneous geographic data query system, wireless communication hardware and an intelligent terminal, wherein the signal receiving device receives monitoring data and stores the data in workstations distributed in all regions; the heterogeneous geographic data storage device takes charge of classifying, normalizing and permanently storing the data on the workstations. When a query request of the intelligent terminal is received, whether a user is authorized is checked, and query the heterogeneous geographic data by the heterogeneous geographic data query system after the check of the authorization of the user is confirmed. After being agreed by wireless communication hardware responsible person and corresponding agents, the query results are sent to the terminal. The invention can effectively query heterogeneous geographic data on a portable device, has high query efficiency and is especially applicable to outgoing engineering personnel.
Description
Technical field
The invention provides a kind of geodata inquiry system and method, especially based on the inquiry system and the method for isomery geodata.
Background technology
Informationalized popularizing makes many enterprises and unit can both adopt various types of infosystems to solve the business demand problem, improved work efficiency simultaneously greatly.But because platform difference, database difference, it is mutual to be difficult to carry out high-efficiency information between each data source, and the problem of " information island " has just produced.How the data source of these isomeries is incorporated into together, realizes that the height of information is shared, become a problem demanding prompt solution.In the application in geography information field, the integrated purpose of isomery geodata is exactly that isolated each other isomery geodata source is integrated into one, the isomerism of shielding harness and pattern makes the data after integrated reach certain integrality, reduces data redundancy and inconsistency simultaneously.
The integrated system of isomery geodata makes the user can visit bottom data more efficiently, and the geographical isomeric data of multi-source this moment is transparent to the user.Could provide good guarantee for inquiry efficiently like this.
Summary of the invention
The invention provides a kind of geodata inquiry system and method,, can be used for carrying out on the portable set information inquiry particularly based on the inquiry system and the method for isomery geodata.
Native system mainly comprises a cover signal receiving device, isomeric data memory storage, the complete isomery geodata inquiry system of a cover, wireless telecommunications hardware, and intelligent terminal; Implementation procedure is such, observation satellite is passed to the ground signal receiver with signal, the station is passed to DRS with Monitoring Data, the signal receiving device of these two kinds of forms has received Monitoring Data, and with the workstation of data storage to the distribution various places, isomery geodata memory storage is responsible for the regular and persistent storage the data qualification on the workstation, afterwards when receiving the query requests of intelligent terminal, check at first whether the user authorizes, confirm from isomery geodata inquiry system, to carry out query processing after errorless, after Query Result is responsible for by wireless telecommunications hardware and corresponding commission merchant reaches an agreement on, send on the portable terminal.The present invention can be effectively on portable unit to the inquiry of isomery geodata, search efficiency is higher, the engineering staff of the operation that is particularly suitable for going out.
Description of drawings
Fig. 1 is disclosed isomery geodata inquiry system synoptic diagram.
Fig. 2 is the disclosed integrated query frame frame of isomery geodata figure.
Fig. 3 is the querying flow figure of disclosed isomery geodata.
Fig. 4 is disclosed isomery geodata query structure schematic internal view.
Embodiment
Technological difficulties to be solved by this invention are how for effective isomery geodata inquiry mechanism can portablely be provided, and satisfy various geography information application demands.
As Fig. 1, provide the data instance signal receiving device to comprise equipment such as various different classes of monitoring devices, ground signal receiving trap, data sink, workstation.Monitoring device has observation satellite, the station etc., has different monitoring equipments towards different field; Each monitoring equipment all has corresponding with it ground signal receiving trap, such as ground signal receiver, DRS or the like.These devices provide the most original measured data for us, these data can be according to instruction storage in the workstation that is dispersed in various places, the data of this moment are not passed through the data pre-service, and have very big otherness and an isomerism, if do not carry out the integrated operation of data, will be difficult to carry out effective query processing.
Isomery geodata memory storage is used for preserving isomeric data and the persistence that each workstation sends and is kept in the distributed data base.This is comprising the pre-service to raw data, data qualification, the operation of warehouse-in.The data pre-service is responsible for the data that transmit are carried out operations such as data cleansing (data cleaning), denoising, and the purpose in this step is to reduce data redundancy, data inconsistency, avoids reading invalid dirty data.Data qualification is that raw data is classified by attribute information and format differences, is different classes of data such as station data and storm tide data, must be stored in the different databases.Data qualification finishes, and next is exactly these data are carried out in-stockroom operation.
Isomery geodata inquiry system mainly comprises intermediary device, wrapper.The query requests of system receiving terminal is obtained data from heterogeneous database.Query Result must just can turn back on the portable terminal by wireless telecommunications hardware and the agential transfer of wireless telecommunications.The wireless telecommunications hardware is here realized Query Result is passed to the commission merchant, is responsible for transferring electromagnetic signal to digital signal by the commission merchant, sends to terminal request.
As Fig. 2, the isomery geodata inquiry system among the present invention mainly is made up of intermediary device, wrapper.Intermediary device receives user's query requests, gives each wrapper query decomposition, is responsible for local heterogeneous data source mutual by wrapper.System offers global schema of user, and in pairs each independently inquiry of data source of query decomposition, and the user needn't be concerned about position, pattern of data source or the like.Wrapper is carried out query requests, and the result is returned to intermediary device, and intermediary device carries out after the overall treatment result being returned to the user.Wherein intermediary device is made up of integrated manager and query processor, and bookkeepings such as the responsible increase to distribution local data of integrated manager, deletion can easily be managed each data source by global map, realize the data integration management; Be responsible for local data simultaneously and arrive the integrated of global data.Query processor is responsible for accepting user's query requests, and Query Result is returned.
Continue referring to Fig. 3, the process flow diagram for the isomery inquiry system is handled mainly comprises following steps: at first open the web browser in the terminal (following is example with the mobile phone), open corresponding website; Then carry out query manipulation; System checks earlier whether this user authorizes, if not direct end; If this user is authorized to, then enter isomery geodata inquiry system and carry out query manipulation, system returns to terminal with Query Result, finishes.
Continue referring to Fig. 4, this figure is the core processing unit figure of query processor among Fig. 2.This module is the nucleus module of system, be divided into inquiry pre-service, query decomposition and data integration several steps, inquiry based on global view is changed into subquery to each partial view, giving each wrapper subquery again carries out, after at last Query Result being returned and integrates, feed back to the user.Unification is operated with XML in the inquiry, takes the inquiry mechanism of binary tree, makes that inquiry ocean isomeric data is more quick, and search efficiency is higher.
In sum, the present invention is a kind of isomery geodata inquiry system and method, compile the geodata of different structure by various monitoring devices, and store in the heterogeneous database after the pre-service of process data, portable terminal can be carried out corresponding query requests according to authorization conditions.
The above only is an illustrative, but not is restricted.This description should not be construed as limitation of the present invention, and any spirit of the present invention and category of not breaking away from all should be contained within the application range.
Claims (8)
1. isomery geodata inquiry system and method is characterized in that, should include:
One signal receiving device is used for monitoring and receiving the geodata of gained;
One isomeric data memory storage, this device is connected with the workstation that is distributed in various places, is responsible for workstation data classified finishing, and persistent storage;
One isomery geodata inquiry system, for the query requests that receives intelligent terminal, data query from the isomeric data memory storage, whether decision returns Query Result according to authorization conditions;
One wireless telecommunications hardware, the Query Result that the geodata inquiry system produces need be transferred on the portable equipment by the wireless telecommunications equipment, and wireless telecommunications hardware plays the effect of signal transfer;
One intelligent terminal, but portable set.
2. isomery geodata inquiry system according to claim 1 is characterized in that multi-faceted monitoring and gathering-device that this signal receiving device is made up of receiving traps such as monitoring devices such as observation satellite, the station, ground signal receiving station and DRSs.
3. isomery geodata inquiry system according to claim 1 is characterized in that the data that this isomeric data memory storage receives from each workstation for storage.
4. isomery geodata inquiry system according to claim 1 is characterized in that isomery geodata inquiry system comprises with the lower part to form:
One intermediary device module, reception user's query requests is given each wrapper query decomposition, and intermediary device carries out after the overall treatment result being returned to the user; And
One wrapper module, responsible and local heterogeneous data source is mutual, carries out query requests, and the result is returned to intermediary device.
5. isomery geodata inquiry system according to claim 4 is characterized in that intermediary device is made up of integrated manager and query processor two parts.
6. isomery geodata inquiry system according to claim 4 is characterized in that wrapper is converted to local search with global query, and the execution result conversion.
7. wireless telecommunications hardware according to claim 1 is characterized in that Query Result is changed into the form that is easy to wireless transmission, can transfer electromagnetic signal to by the commission merchant.
8. but portable set according to claim 1 is characterized in that it is movably, smart mobile phone or PDA.
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| CN 201010164114 CN102004748A (en) | 2010-04-29 | 2010-04-29 | Heterogeneous geographic data query system and method |
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| CN 201010164114 CN102004748A (en) | 2010-04-29 | 2010-04-29 | Heterogeneous geographic data query system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106484874A (en) * | 2016-10-13 | 2017-03-08 | 福建星海通信科技有限公司 | A kind of method by unified for software platform bottom isomeric data encapsulation and system |
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| CN101290573A (en) * | 2008-05-30 | 2008-10-22 | 同济大学 | Trans-platform embedded geographical information systems |
| CN101561816A (en) * | 2009-05-27 | 2009-10-21 | 武汉大学 | Method for releasing geospatial data incremental information |
| CN101604320A (en) * | 2009-07-08 | 2009-12-16 | 华东师范大学 | Hand held is based on map browser |
| CN101685449A (en) * | 2008-09-26 | 2010-03-31 | 国际商业机器公司 | Method and system for connecting tables in a plurality of heterogeneous distributed databases |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101075249A (en) * | 2007-06-22 | 2007-11-21 | 上海众恒信息产业有限公司 | Data warehouse system and its construction for geographical information system |
| CN101290573A (en) * | 2008-05-30 | 2008-10-22 | 同济大学 | Trans-platform embedded geographical information systems |
| CN101685449A (en) * | 2008-09-26 | 2010-03-31 | 国际商业机器公司 | Method and system for connecting tables in a plurality of heterogeneous distributed databases |
| CN101561816A (en) * | 2009-05-27 | 2009-10-21 | 武汉大学 | Method for releasing geospatial data incremental information |
| CN101604320A (en) * | 2009-07-08 | 2009-12-16 | 华东师范大学 | Hand held is based on map browser |
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| CN106484874A (en) * | 2016-10-13 | 2017-03-08 | 福建星海通信科技有限公司 | A kind of method by unified for software platform bottom isomeric data encapsulation and system |
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Application publication date: 20110406 |