Display, Transmission And Format Conversion Of Geological Data

In recent years, through the project of China Geological Survey support,geological data information service in China has made important progress, theformation of the geological data of massive, distributed in the jurisdiction of theplurality of geological work in the region. These data involves a wide range, inaddition to visual value has appeared, also contains rich, can tap to potential value,can provide the basis for promoting the development of national economy. However,it is the development trend of geological work of this kind of extensive geologicaldata because of the increasingly large scale, geological data format units use of nounified standard, for mining geological data information potential, unifiedmanagement of multiple geological data, repeated use of geological data introducesnew problems.In this paper the author instructors assume the China Geological Survey BureauDevelopment Center "geological data information service industry cluster keytechnology" the experience and achievements, combined with geological data display,transmission, the format conversion related research and realization method, anddiscusses the key technology and the system integration technology. And through thedevelopment of prototype software system is realized by the method of geologicaldata display, transmission, format conversion, for the construction of geological datawarehouse, provide geological data management services, management of distributedgeological data cluster tamp foundation.Display system of geological data based on Spatial: Oracle can solve thegeological data of spatial information and attribute information between the"information isolated island" problem, the use of general database as a geological datadisplay system, data source, display of geological data in the spatial information andattribute information for the user.Geological data transmission system based on ZeroMQ publish/subscribe:Generally speaking, the massive data transmission may occur in two situations, one of which is the concurrent connection data too much, resulting in transmission loss ofinformation; two is a long time not connected to monitor long terminal connectionfailed, so that ZeroMQ can be used to solve the above problem. In addition to thegeological data are often confidential, so this system use the SFTP upload anddownload function realization of geological data transmission.Format analysis of geological data format two for reading and writing: do not useconversion based on GIS software platform, SDK, directly on the geological data ofbinary file reading and writing, which comprises the extraction of spatial informationand attribute information can reduce the dependence on the platform, adding featuressuch as batch processing, numerical calculation, custom features.