【摘要】 北京正负电子对撞机重大改造工程(BEPCII)控制系统使用EPICS组态软件包构建。EPICS的核心是驻留在前端机IOC上的分布式数据库。该分布式数据库通常是在主机上用工具软件VDCT或文本文件生成,然后通过网络装载到前端机IOC上。目前,BEPCII控制系统的信号量有两万多个,分布在20多个IOC上。这么多的数据库分别由设备控制人员使用VDCT或文本自行开发,没有一个统一的管理工具对其进行透明化管理。介绍了当前国内外使用ORACLE管理EPICS数据库的现状,分析了EPICS数据库并研究了ORACLE数据库管理系统存储和管理EPICS数据库的机制,介绍了OR-ACLE与EPICS数据库接口的软件开发过程及其应用。更多还原

【Abstract】 EPICS is used as a development toolkit of BEPCII control system.The core of EPICS is a distributed database residing in front-end machines.The distributed database is usually created by tools such as VDCT and text editor in the host,then loaded to front-end target IOCs through the network.In BEPCII control system there are about 20,000 signals,which are distributed in more than 20 IOCs.All the databases are developed by device control engineers using VDCT or text editor.There’s no uniform tools providing transparent management.The paper firstly presents the current status on EPICS database management issues in many labs.Secondly,it studies EPICS database and the interface between ORACLE and EPICS database.Finally,it introduces the software development and application in BEPCII control system.更多还原