XML技术下舰船信息中心实时内存数据库构建  

Construction of real-time memory database of ship information center based on XML technology

作　　者：游学军[1] YOU Xue-jun(Jiangsu Maritime Institute,Nanjing 211170,China)

机构地区：[1]江苏海事职业技术学院,江苏南京211170

出　　处：《舰船科学技术》2022年第15期145-148,共4页Ship Science and Technology

基　　金：江苏省高等学校优秀科技创新团队项目(苏教科函〔2019〕7号);江苏省青蓝工程中青年学术带头人项目(苏教师[2020]10号)。

摘　　要：基于XML技术构建舰船信息中心实时内存数据库,为舰船信息中心的实时信息显示与处理提供保障。以舰船信息中心所获取的实时信息为源数据,存入源数据库;运用XML技术创建源数据库表与待建实时内存数据库表之间的格式映射模型,转换数据格式后写入文档内,再利用VTD-XML解析模型解析转换此时的文档数据。最后一致性校验解析转换后的XML文档数据,并向待构建实时内存数据库内存入此类数据。实验结果表明,该方法在清洗更新与解析转换XML文档数据时具有较好的处理效果,数据库内包含舰船航行的实时动态轨迹、实时定位以及实时动态方位图像等信息,可有效保障舰船信息中心信息显示与处理的实时性。In this paper,the real-time memory database of ship information center is constructed based on XML technology,which can guarantee the real-time information display and processing of ship information center.The real-time information obtained by the ship information center is the source data and stored in the source database.Using XML technology to create a format mapping model between the source database table and the real-time in-memory database table to be built,convert the data format and write it into the document,then use VTD-XML parsing model to parse and convert the document data.Consistency verification parses the transformed XML document data and stores such data into a real-time inmemory database to be built.Experimental results show that this method has a good processing effect when cleaning,updating,parsing and converting XML document data.The database contains real-time dynamic trajectory,real-time positioning and real-time dynamic azimuth images of ship sailing,which can effectively guarantee the real-time display and processing of ship information center.

关 键 词：XML技术 舰船信息中心 实时内存 数据库 映射模型 解析转换 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]