基于关系模型的机载导航数据库快速解析生成方法

导航数据库可用于导航计算、导航台自动调谐管理等,是飞行管理系统所必须的数据源。为了能有效提高机载导航数据库的使用、更新及维护效率,大大减少相关工作人员的工作量,提出了一种基于关系模型的机载导航数据库快速解析生成方法,针对ARINC424协议中包含的大量数据对象进行建模,定义出协议中各个对象之间的逻辑关系和约束关系,并对数据结构进行优化,通过中间关系表确立各个数据之间的交叉引用关系,从而实现数据库的快速解析生成。测试结果表明,基于关系模型的机载导航数据库快速解析生成方法能有效提高数据查询效率,降低数据解析和生成的时间消耗,减少数据冗余,使数据库性能更优异。

The fast parsing and generating method of airborne navigation database based on relation model

Navigation database can be used for navigation calculation and automatic tuning management of navigation platform, etc. It is necessary to flight management system data sources. In order to effectively improve the efficiency of the use, update and maintenance of the onboard navigation database, greatly reduce the workload of the relevant staff, the fast parsing and generating method of airborne navigation database based on relation model is proposed. Modeling a large number of data objects contained in the ARINC424 protocol to define logical relationships and constrains between objects in the protocol, and optimizing the data structure, establishing a cross-reference relationship between the data through the intermediate relationship table, thereby fast parsing and generating of the database is realizing. The test results show that the method can effectively improve the efficiency of data query, reduce the time consumption of data parsing and generating, and make the database performance better.