基于CAN网采用滑动窗口技术传输信息  

Information exchange applying sliding window technique based on CAN network

作　　者：唐喜[1] 孟岩[1] 

机构地区：[1]北京四方继保自动化股份有限公司研发中心,北京100085

出　　处：《电力自动化设备》2009年第1期147-150,共4页Electric Power Automation Equipment

摘　　要：针对CAN网传输智能电子设备(IED)信息速度慢的现状,提出基于CAN网结构采用滑动窗口技术实现IED内部各通信插件之间信息交换的方法,将以太网TCP/IP协议中的"一问多答"、"断点续传"等先进技术应用到CAN网,可使IED大量的描述信息准确、快速交换,尤其是IED长时间故障录波后,可快速上传到分析终端进行故障诊断。对比试验发现,与传统的"停止-等待协议"相比,"滑动窗口协议"传输电网故障信息更加高效,同时"滑动窗口协议"配置灵活,通过改变窗口尺寸,即可兼容"停止-等待协议"。As the information exchange among IEDs（Intelligent Electronic Devices） on CAN（Control Area Network） is slow, the sliding window technique based on CAN structure is suggested, which adopts the advanced technique of Ethernet TCP/IP protocol, such as ＂multiple replies to single asking＂ and ＂continuous transmission after interruption＂. The massive descriptive information can be correctly and quickly exchanged, especially the long-time fault records can be quickly sent to analysis terminal for fault diagnosis. Compared with traditional stop-wait protocol, the sliding window protocol is more effective and more flexible. It is compatible with stop-wait protocol by setting variable window size.

关 键 词：IED 滑动窗口 停止-等待协议 嵌入式系统 电网 电力系统 

分 类 号：TM73[电气工程—电力系统及自动化] TN915[电子电信—通信与信息系统]