摘要
论文以OPCUA技术为基础,设计了一种文件结构作为历史数据存储器。同时,在符合OPCUA规范定义的条件下,通过存储过程、存储方式和查询过程三部分给出一种历史数据的存取机制,以便客户高效地处理历史数据。最后,通过实验用程序实现数据存取模拟,并对存储和查询性能进行了测试。
A file structure is proposed to archive historical data in this paper based on the specification of OPC UA. In addition,an effective mechanism is also further presented to archive and access historical data for clients. Three parts including archive process,archive mode and query process in the mechanism are further introduced in the paper. Finally,the performance of storing and querying mechanism is verified with the simulation data.
出处
《微型电脑应用》
2010年第2期35-37,5,共3页
Microcomputer Applications
