基于转炉副枪控制系统的数据库技术

数据库是转炉副枪控制系统的核心.从控制系统需求分析出发,详细介绍了数据库的设计过程,并用数据流图和ER图对数据库的需求模型、概念模型进行描述,逻辑结构设计过程中大量使用触发器,将控制系统中的部分任务放在数据库系统中完成,减轻了控制系统运行的压力.系统运行表明,设计的数据库能够满足系统对开发的需求,能够实时采集管理数据,并对数据进行计算分析.

The Database Technology Based on the Converter Sub-lance Control System

Database is the core of converter sub-lance control system. The database design process was introduced in detail which embarked from required analysis of the control system. Data flow diagrams and ER diagrams were used to describe the requirement model and the conceptual model of the database respectively. The triggers were extensive applied in the logical structure design process. It＇s helpful to remove part of tasks from the control system to the database system and because of that which the operating pressure of the control system would reduce. The results show that the designed database can satisfy very well of the development of the system. What more important is that the database can realize real-time data collection and management. The calculation and analysis of data are also realized at the same time.