机构地区: 广东电网公司
出 处: 《计算机工程与设计》 2013年第9期3358-3360,F0003,共4页
摘 要: 提出了一种双(多)通道基于时间序列的数据同步方法以及立即同步、周期同步和请求同步等3种同步方式,应用于变电站远动系统双(多)通道加载问答式规约与同一个调度以主备运行的模式。通道给接收到的每个数据均注上自己的本地时标,同步通道将最近一个向调度发送成功的数据作为同步数据发送给被同步通道,被同步通道采用同步信息时间窗(2Δt)将发送队列中的未发送数据进行分检过滤,实现在同步通道中发送过的数据,当被同步通道切换为主通道时不再发送,从而有效地消除通道切换中出现的数据重发、漏发现象。 A synchronized method of two-channel or multi-channel based on time series is proposed, the method has three synchroniza- tion mode including immediate-syne, period-sync and ask-syne, and they can be applied to the standby mode of RTU's two-channel or multi-channel with polling communication protocol. A data fetches the channel' s timestamp when the channel received the data from lED. Synchronizing channel sends the last one, which is sended to the dispatching automation system successfully with timestamp to the synchronized channel. Synchronizing information time window (2Δt) is supplied to filter the synchronized channel' s data in sending queue that synchronizing channel sended, then resending and omissive sending can be eliminated effectively.
关 键 词: 通道同步 同步信息时间窗 远动 双通道 多通道 同步
领 域: [自动化与计算机技术] [自动化与计算机技术]