时间触发通信流控技术研究综述

Review of Time-Triggered Communication Flow Control Technology

传统网络和事件触发的通信方式无法满足音视频网络、远程控制、无人驾驶等应用对低时延、高可靠、确定性的要求。时间触发通信通过预先规划链路资源实现数据转发,保障周期性数据流确定性传输,在航空电子、车辆互联、工业控制等领域得到广泛应用。文章首先研究了事件触发通信和时间触发通信的工作原理,横向对比了事件触发通信和时间触发通信的性能指标;然后对不同网络下的流控技术进行归纳和总结,重点对时间敏感网络(Time Sensitive Networking,TSN)中5种流控技术进行分析;讨论了时间触发通信在不同场景下的应用;最后对时间触发通信流控技术的未来研究趋势进行了总结和展望。

Traditional network and event-triggered communication methods cannot meet the requirements of low latency,high reliability and determinacy in audio and video networks,remote control,driverless and other applications.Time-triggered communication enables data forwarding through pre-planned link resources,guarantees the deterministic transmission of periodic data streams,and was widely used in avionics,vehicle interconnection,industrial control and other fields.Firstly,the working principle of eventtriggered communication and time-triggered communication was studied,and the performance indexes of event-triggered communication and time-triggered communication were compared.Then,the flow control technologies under different networks were summarized and focusing on the analysis of five flow control techniques for time-sensitive networking(Time Sensitive Networking,TSN).Secondly,the application of time-triggered communication in different scenarios was discussed.Finally,the future research trends of time-triggered communication flow control technology were summarized and forecasted.