基于反射内存网的飞机仿真试验数据库系统研究

Design and Realization of the Aircraft Simulation Test Database System Based on Reflective Memory Network

针对飞机仿真试验过程中数据交互实时性和海量数据同步快速回放问题,该文设计了基于反射内存网的飞机仿真试验数据库系统。在采用反射内存卡构建实时共享网络的基础上,应用Linux系统环境下的Oracle数据库建立飞机仿真试验数据库系统,重点研究试验过程中数据交互的实时性和多系统数据回放的同步性与快速性。理论分析与试验结果表明,本数据库系统保证试验过程中加载、液压、温度、飞控、仿真等多个子系统的数据实时交互、快速可靠存储,并在试验运行过程中,查询数据库同步回放2 h以上的历史数据,实现飞机仿真系统整体的频响性能,提高试验效率和飞机飞行的机动性。

For the problems of data interaction real-time and mass data playback synchronously and fast in the aircraft simulation test,A aircraft simulation test database system using Oracle database in Linux is established,basing on the real-time sharing network with reflective memory cards. The overall network composition structure of the system is described,the design and implementation of Oracle database system about the aircraft simulation test are introduced,as well as the real-time of data interaction and the synchronization-fast of data playback in the test process are emphases researched. Theoretical analysis and test results show the Oracle database system can ensure data realtime interactive and fast reliable storage in the test process among many subsystems,such as loading,hydraulic,temperature,flight control,simulation,at the same time,can payback at least two hours historical data through query the Oracle database. The overall frequency response performance of aircraft simulation system was realized,also the test efficiency and the aircraft flexibility were improved.