Research And Development Of Airborne Geophysical Information System Module

During the geophysical prospecting, Aerial geophysical datum is very large inamount. Therefore it is very significant to study how the mass of data can be managedscientifically and effectively so as to serve for the country's economic developmentand geological study. The study content of this dissertation is just a part ofAGIS(aerial geophysical information system) which are based on database softwareof Oracle and geographical information system software of ArcGIS in the frameworkof windows. In the dissertation, four important modules developed by myself in thesystem have been studied. The four modules are check before loading datum intodatabase, custom interface, query result statistics and project fee statistics.The module of check before loading datum into database realized the check forall kinds of aerial geophysical datum. The aerial geophysical datum collected in thepast have many nonstandard places and perhaps has some errors because there is alack of unique and strict regulation. This module focuses on the checking of severalserious errors which may be hided in the datum, and provide the error information forcollectors.The module of custom interface realized customizing data collection interface,view interface, query interface dynamically in the program's running time based onthe database structure. Now, there are 91 tables in aerial geophysical database, it is alarge workload to develop collection,view and query interface for each table, whichalso bring some problem to maintenance. This module provide a simple and clevermethod to create needed interface dynamically, so as to solve these problems andmakes the system more expansible.The module of query result statistics realized the customization of statisticinterface according to query result and then taking statistics according to statisticalquantum and statistical condition that user typed in the interface. The peculiarity ofthis module is the condition input interface of the statistical quantum and statisticalcondition are all created in the program's running time, so it can take statistics for anytable.The module of project fee statistics realized the statistics for prospecting projectfee according to statistical conditions user typed, which is completed separately in theway of two layer and three layer logical construction. The peculiarity of this module isachieved the goal in two different logical constructions and the realizing of three layeris fit to take statistics for tables with large amount datum , and it is not only satisfiedcurrent need but also is a greater way for other statistics.The modules' code developing and testing have been completed and integratedinto main system. All the programs at client port are developed with the language ofc-shape and the system's programs at server port are developed with the language ofpl/sql which comes from Oracle Company.