TCP协议在CAN网络数据流传输中的应用  

The Application of TCP Protocol in CAN Network Data Flow Transmission

作　　者：丁俊峰 DING Junfeng(CCTEG Changzhou Research Institute,Changzhou 213015,China;Tiandi(Changzhou)Automation Co.,Ltd.,Changzhou 213015,China)

机构地区：[1]中煤科工集团常州研究院有限公司,江苏常州213015 [2]天地(常州)自动化股份有限公司,江苏常州213015

出　　处：《煤矿机电》2023年第5期29-33,共5页Colliery Mechanical & Electrical Technology

基　　金：天地(常州)自动化股份有限公司科研项目(2023FY0010)。

摘　　要：针对矿用控制系统中故障录波、远程升级等需要通过CAN网络进行数据流传输的需求,以及CAN总线因为短帧结构、高效传输控制协议缺失等原因导致的数据流传输速度慢、效率低等问题,提出了将以太网TCP协议应用于CAN网络的传输方法。将以太网TCP协议中的相对地址技术,滑动窗口技术,断点续传技术等应用到CAN网络,设计了适用于CAN网络的数据流传输方法。试验结果表明,基于该方法能实现数据流的快速可靠传输,提高了数据流的传输效率。相较于传统的传输方式,该方法具有帧利用率高,总线利用率高以及重传效率高的优点,适用于有大文件交互的CAN网络中。In response to the demand for data flow transmission through CAN network for fault recording and remote upgrading in mining control systems,as well as the slow and inefficient data flow transmission caused by short frame structure and lack of efficient transmission control protocol on CAN bus,a transmission method using Ethernet TCP protocol in CAN network was proposed.The relative address technology,sliding window technology,breakpoint continuation technology,and other technologies were applied in the Ethernet TCP protocol to the CAN network,and a data flow transmission method was designed suitable for the CAN network.The experimental results showed that this method could achieve fast and reliable transmission of data flows,improve the transmission efficiency of data flows.Compared to traditional transmission methods,this method has the advantages of high frame utilization,high bus utilization,and high retransmission efficiency,making it suitable for CAN networks with large file interactions.

关 键 词：TCP CAN 滑动窗口 接收位图 数据流 

分 类 号：TN919.2[电子电信—通信与信息系统]