一种提高数据库实时性的设计方法

A Design Method for Improving Real-time Characteristic of Database

结合机群作战分布交互仿真系统给出了一种提高仿真系统数据库实时性的方法。即利用集中和分布式的数据库结构对机群作战分布交互式仿真系统的数据库进行了优化设计,减少了网络数据流量。同时,采用ADO数据库访问技术,提高了数据库操作响应速度,利用W indows Sockets套接字编写的广播通信接口程序以及在线程之间建立共享内存,增强了数据缓冲能力,提高了系统处理数据的能力,从而保证了系统的实时性。时钟节点的加入保证了系统的时空一致性,保证了数据的准确性。经试验验证可以满足系统要求。

A method for improving real - time of database is put forward based on Air fleet fighting DIS system. Namely, using the centralized and distributed database design optimizes the configuration of simulation database of Air fleet fighting DIS system and ~duces network flux. Simultaneously, response speed of database operation is improved through the using of ADO access mode of database. Network interface edited by Windows Sockets and foundation of shared memory among threads have enhanced the ability of data buffer, improved the system capacity of processing data and ensured the real - time characteristic . Simulation results show that the design could meet the real - time need of system.