Based On The Development Of Gis-accurate Migration Of Information Systems Research

Based on the GIS accurate immigration information system is in "the golden earth project", "the digital national territory" under the big background proposes, also is "the digital basin" a part, the establishment accurate immigration information system goal is for the immigration determined most superior placement whereabouts, the convenient government highly effective management immigration, inquires the storehouse district basic data, also establishes "the golden earth project" and "the electronic government affairs project" attempt and exploration.The hydraulic engineering immigration is a complex systems engineering, policy-type, it involves the wide range the population to move, as well as the land, the factories and mines, the infrastructure and even the cities plan and the construction process, must use the massive documents material and the numerous and diverse information, how carries on to the data material manages, the inquiry and the use effectively, relates the immigration work the efficiency and the achievement reliability. On the other hand, because in the immigration essence is each resources carries on the disposition in the specific geography space, therefore the immigration work content often cannot leave the geographical position information. The traditional immigration working is uses the paper map or the CAD chart, investment many manpower, the efficiency is low. But uses the GIS formidable space data management and handling ability, can enhance the immigration work the efficiency, causes the plan, the management and the decision-making more scientific.The fine accurate immigration information system is based on the computer information management and the auxiliary decision system, through mainly makes a living after the immigration factors and so on method, existing living standard and religious belief qualitative, the quantitative analysis, in existing placement determined will immigrate the most suitable placement whereabouts to immigrate and the placement carries on the combination pair by the preferred plan. The Dadu River stave development engineering Dagangshan hydroelectric power station immigrant information system is we uses the geographic information system and a data bank technology construction immigrant specialized application system, it depends on GIS the formidable data management and the analysis function, establishes the immigration management database using database ACCESS, carries on the highly effective management maintenance to the resources data, is the reservoir immigrant plans the management decision-making effective tool.This research in the consult massive correlation literature material foundation, uses in the open country investigation, the room methods and so on analysis, utilizes the GIS technology, has established based on the GIS accurate immigration information system, unifies MapObjects, has established the immigration information and the placement management information system and the corresponding attribute database and the geography database, from the foundation database construction to the GIS system design, proposed from the fine accurate immigration concept but realized the fine accurate immigration algorithm design and so on to carry on the system the beneficial research. Carried on in the process in the paper to yield below a series of results:1. After the massive attempts and the repeatedly comparison, succeed the CAD topographic diagram transformation are the shape form maps, has overcome the CAD data in GIS development some malpractices.2. In compares each GIS development way in the foundation, has used ERSI GIS module MapObjects, environment carries on the development in Visual under the basic, has continued to use the traditional GIS tool function, causes the system the use to be simpler, direct-viewing also easy to popularize.3. The system integration entire storehouse district topographic diagram, the submergence scope, the terrain, the land utilization present situation, the elevation control point and so on each foundation data and the target investigation data in kind, these data moved for the later period immigration, cross the high water and the storehouse bottom cleaning up decision-making support safely have provided the abundant foundation. And the system increased the graph plan function and the printing function, inspected for the scene has provided conveniently.4. The system has realized including the immigrant basic situation inquiry, the placement basic situation inquiry, the immigration target inquiry in kind, as well as the realization looks up its attribute, the input text from the map searches inquiry function modules and so on corresponding the map. Thus has provided the direct-viewing inquiry way and the management tool for the immigration department and the owner.5. First time proposed "fine accurate immigration" the concept, and attempted has been making the limits for its concept. The fine accurate immigration essence is makes the most superior combination between the immigration and placement. Both has considered the immigration placement desire in the middle of the operating process, and gave dual attention to which the immigration working condition, the living standard did not reduce the principle and "peaceful steady, peaceful lives, can become rich" the principle, this and today "humanist", attention "livelihood of the people" the national policy agreed without prior consultation happen to hold the same view.6. In the widespread reading literature foundation, has profited from some successful project experience, compiled has realized the fine accurate immigration algorithm design.7. The placement topic manufacture, mainly to each placement production placement plan, the life placement plan, the land resource, the water resources, the traffic conditions carries on the demonstration. The content supposes and to each placement spot, will place the land transformation resilience, the ditch will be contents and so on arrangement and design standard, land utilization plan, planter pattern, path plan and design standard includes in the system, this module will be the immigration organization, the owner understands each placement most direct, simplest also the direct-viewing description, and in the immigration resettlement area construction process, might supply the construction and the overseeing unit makes the reference.The reservoir immigrant information system mainly is through the computer programming realization to the immigration data automated management, reduces the human factor, and may enhance the achievement the confidence level, causes the immigrant work the data realization automation, the microcomputer. The system is a man-machine conversation system, has the good user interface, completes the information through the dialog box the input, the inquiry, the statistics and the output, and has the very strong report form function, the system is an open system, builds the good foundation for later system expansion.