FTT-CAN协议中后备节点SRT表更新机制设计  

The Design of the Backup and Master Nodes SRT Updating Mechanism in FTT-CAN

作　　者：郝骞[1] 王熙[2] 蒋永建 齐明思[4] 

机构地区：[1]中北大学国家级电工电子实验教学示范中心,山西太原030051 [2]山东科技大学地质科学与工程学院,山东青岛266510 [3]青岛青咨工程咨询有限公司,青岛266071 [4]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《中北大学学报（自然科学版）》2013年第4期435-440,共6页Journal of North University of China(Natural Science Edition)

基　　金：国家自然科学青年基金资助项目(51205373)

摘　　要：FTT-CAN协议可以有效保证工业现场中对通信柔性的需要,但是由于干扰和错误需要后备节点信息调度表(Synchronized Regulation Table,SRT)在线更新.为此提出了一种保证异步窗口并及时处理更新请求的算法,该算法充分考虑了更高优先级的突发性信息的影响,对传统调度算法进行了优化,保证了后备节点与活动主节点的运行同步,满足了工业系统信息的实时性要求,使更新过程更加有效.The FTT-CAN （Flexible Timer-Triggered CAN） protocol can effectively guarantee the industrial field of the communication needs of flexibility, but due to interference and errors need Synchronous communication Requirements Table （SRT） to update online. Based on the above, an improved algorithm to guarantee the asynchronous window and timely deal with update request was presented, which fully considered the higher priority of the sudden impact of information. So the traditional scheduling algorithm had been optimized to ensure that the primary particular master/slave network and replicated masters run synchronously, to meet the industrial system requirements of real- time information and to make the update process more effective.

关 键 词：FTT-CAN 协议 同步信息调度表 现场总线 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]