SQLite嵌入式数据库在PMU中的应用  

Application of SQLite embedded database in PMU

作　　者：陈晓刚[1] 郑毅君 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027 [2]江苏省无锡供电公司,江苏无锡214000

出　　处：《机电工程》2008年第3期27-29,共3页Journal of Mechanical & Electrical Engineering

摘　　要：针对电力系统对PMU装置提出的高可靠性和高性能的要求,提出了在相量测量单元(PMU)中使用SQLite嵌入式数据库。分析了PMU装置对嵌入式数据库的需求。介绍了在QNX平台上SQLite嵌入式数据库的编译、安装和使用。重点介绍了C语言环境下SQLite的集成与开发,给出了关键代码示例。最后提出了使用内存式硬盘提高SQLite性能的方案。该方案已成功应用于PMU装置,实际测试表明其具有良好的实时性能。The application of SQLite embedded database to improve the reliability and performance of phasor unit measurement was introduced. The demand of embedded database in PMU was analyzed. Then the compilation, installation and usage of SQLite database on QNX platform were introduced. The integration and development in C language was especially demonstrated and also some example codes were given. Finally, the adoption of RAM disk technology to enhance the performance of SQLite was pro- posed. The SQLite database is successfully applied in PMU equipment and the test justifies its real time performance.

关 键 词：QNX实时操作系统 SQLITE 嵌入式数据库 相量测量单元 电力系统 

分 类 号：TP392[自动化与计算机技术—计算机应用技术]