Aero Geophysical Data Management System Development

Since the geological survey department began to fly for exploration, theyhave accumulated lots of aero survey data and scientific research achievements, in order to better management and usingthe data expediently, it must establish database management system which is systemic, efficient and friendly. The collection system of aero geophysical prospecting data usedthe Microsoft.net developement environment, managed the database by oracle, anddisplayed the spatial data by ArcGis,realized the storage of data, checking andinquiring,etc.The mainly work and results in this paper are as follows:On the characteristic of the aero geophysical survey data is large amount data, we used the blob-technic for storage process when data input, that place the measure data,documents and picutres to a blob-field instorage, and the instructed data to a usual-field, this technology can manage data effectively and save space.According to relativity of the aero geophysical survey data and geography information,we displayed survey data by figure of arcgis and grid, and switch smoothly betweenthem.By introducing data mining algorithm and cloud computing technology, it solves the questions of data storage, calculation, and man-machine interactive intelligence, and improves the data processing andthe efficiency of using greatly.In order to strengthen the data management,ensure the data validity and uniqueness, the collection system of aerogeophysical prospecting data constructed two database, a collect-database and a formal-database.Before and after the data deposited in the collect-database, we took a series of strict examination, including check before saving, system check, check artificially and re-checkartificially, and gave a exactly check log for users to modify the data. The data whichpassed the checks allowed to place into the formal-database, to ensure the data accuracy and uniqueness.For the data researching, the system can created research-windows dynamically, the users can looked up the data by one or several items, it made the users to get the data conveniently and swiftly.The collection system of aero geophysical prospecting database uses the coexistence architecture of client/server and Browser/Server,realize the data collection and use, and it is easy to system maintenanceand upgrade. On the aspect of security, the user logged on the client and verify theidentify on the server by network, then fix on the role of the system with distinctrights by user’s code. The diffent roles can obtain diffent permissions after logining, it matched the user’s demands better.