摘要
介绍了最新的实时数据库ExtremeDB和OPC(OLE for Process Control)技术及其在网络化控制系统数据访问中的应用模式。探讨了OPC规范下的数据访问方式,给出了一种OPC服务器的设计和实现方法,基于已有的OPC Server实时任务模型,实现了数据访问混合任务集动态调度算法,测试结果表明,该应用模式具有较好的稳定性和高效性。
A new kind of real-time database named ExtremeDB and OPC （OLE for Process Control） are introduced. It gives a new application mode in data access for networked control systems. The design and implement of an OPC server is provided in detail. Based on the existing real-time model--OPC server, the programme implements a dynamic scheduling algorithm, which could deal with hybrid tasks. The test results show that this mode is stable and efficient for data accessing among different networks.
出处
《微计算机信息》
北大核心
2007年第04X期139-141,共3页
Control & Automation
基金
华北电力大学博士学位教师科研基金项目(200512016)
