The Fast Parsing and Generating Method of Airborne Navigation Database Based on Relation Model

Abstract

Navigation database can be used for navigation calculation and automatic tuning management of navigation platform, etc. It is the necessary data sources for flight management system. In order to effectively improve the efficiency of the using, updating and maintaining of the airborne 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 effectiveness of the method is verified by test. 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.

Keywords

• airborne navigation database
• intermediate relationship table
• data modeling
• parsing and generating