CBTC仿真系统中数据库的设计与实现

Design and Realization of Database in CBTC Simulation System

利用数据库管理仿真系统中大量复杂的数据,有利于系统扩展以及模块化设计。简述了CBTC仿真系统的发展及应用。介绍了CBTC仿真系统中数据库的应用及设计原则,着重介绍了面向对象的CBTC仿真系统数据库的设计思路和实现方法。讨论了如何将用概念模型表示的、独立于DBMS的仿真系统面向对象数据模式转换成SQL Server数据库所基于的数据模型表示的数据模式,解决了CBTC仿真系统中复杂数据结构不易设计的问题。该设计思想能够满足CBTC仿真系统数据库设计的需要,有深入研究价值。

There are vast and complicated data in the simulation system. USing database to manage these data is benifieaial to the extensibility and modularized design of the system. The development and application of CBTC simulation system are described briefly. The application of the database in CBTC simulation system and its design principle are introduced. And this paper mainly illustrates the way of database design by use of object - oriented method. The translation of simulation system object - oriented data modes, expressed by conceptual models and independent to DBMS,into the SQL server data modes is discussed. The problem that complicated data structure in CBTC simulation system is difficulty to design has been solved. It meets all requirements of the database design and is worth further researching.