DCS组态软件实时数据库系统的设计

Design of the Real-time Database System in DCS Configuration Software

分析了实时数据库的特点和DCS系统的使用要求,提出了采取传统数据库系统、文件系统和内存数据库系统兼用的多种存储介质来建构的实时数据库系统。并提出了利用DLL来建立动态实时数据库,从而实现代码及资源共享,进而实现任务间的快速通讯。最后给出了实时数据库类及相关数据模型的实现方法实例。

The real-time database system is a pivotal part in the configuration software system of DCS,which is short for distributed control system.Through analyzing the characters of the RTDBS and the requirement of DCS,we propose an design idea of RTDBS,which uses traditional database system,file system and EMS memory database system to build up the RTDBS system.At the meantime,we adopt the DLL to run a RTDBS in order to realize sharing the code and the resource,so that we can realize the quick communication between every task.At last,this article gives a realization instance of the class of RTDBS and its data object model.