嵌入式电力监控系统中温备份技术的研究与实现

Research and Implementation of Warm Backup Based on Embedded SCADA

中文关键词:  温备份  数据同步  监控系统  可靠性  容错

英文关键词:warm backup  data synchronism  SCADA system  reliability  fault-tolerant

中文摘要:

      嵌入式电力监控系统是一个对可靠性要求非常高的系统，需要具有容错能力的软件进行维护。针对嵌入式设备硬件资源及计算能力的限制，研究分析了影响备份系统可靠性的故障模型，提出了一种满足该模型的基于温备份的容错解决方案，深入讨论了在温备份的解决方案中实时数据的同步策略，给出了具体的设计与实现。按该同步策略，采用故障注入法对实现进行测试，测试数据表明所提出的同步策略是合理和可行的。

英文摘要:

      Embedded SCADA(supervisory control and data acquisition) system is a very high reliability requirements of the system,which maintained by the software with fault-tolerant.For the restriction of embedded hardware resources and computing power,the fault model of affecting the backup system reliability is researched and analyzed,conforming which a fault-toleran solution is proposed based on the warm backup.The real-time data synchronization strategy in the solution of warm backup is discussed further.The design and implementation are proposed specifically.According to the synchronization strategy,the implementation is tested using the fault-injection method.The test data indicates that the synchronization strategy is reasonable and feasible.