CAN现场总线实时性研究  

Study of the Real-time of CAN Field Bus

作　　者：杨丽军[1] 

机构地区：[1]陕西教育学院计算机科学系,陕西西安710061

出　　处：《航空计算技术》2006年第3期65-67,共3页Aeronautical Computing Technique

摘　　要：介绍在CAN现场总线控制网络中保证优先级较低站点数据传输实时性的有效方法。通过动态改变各站点优先级,保证各站点有均等机会获得总线控制权,实现数据实时传输。本文提出“取模增加”法动态改变站点优先级,使优先级较低的站点可以动态地提高优先级,有效降低网络传输延时,提高站点数据传输的实时性。This paper introduces that a real time transmission of some low priority stations can be guaranteed in CAN field bus control network. By dynamic updating station priorities, all stations have same opportunities to get buses to transmit data in real time. This paper proposes a solution named ＂ module increase＂ to update station priorities to increase some low priority of stations dynamically, cut down network transmission delay and enhance the real - time of data transmission.

关 键 词：CAN 优先级 取模增加 动态优先级 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]