| 摘要: |
| 时间触发以太网（Time-triggered Ethernet,TTE）将时间触发技术与传统以太网的灵活性、高带宽等特性相结合，解决了传统以太网无法满足的高实时性、高可靠性问题。流量调度是TTE标准中关键技术之一，可以有效保证TTE网络可靠地实时通信。首先介绍了流量调度的基础时间同步机制，并对TTE流量调度问题进行数学描述，包括TTE网络拓扑结构、流量模型和约束条件；然后着重阐述了TTE流量调度的研究现状，分析比较不同调度算法的优缺点与不同的应用场景，归纳和总结了各种调度方案的调度流量类型、调度目标和调度性质；最后讨论了TTE流量调度的发展方向和趋势。 |
| 关键词: 时间触发以太网 时间同步机制 流量调度 |
| DOI：10.20079/j.issn.1001-893x.231009003 |
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| 基金项目:国家自然科学基金资助项目（11504176,6160230） |
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| Research Progress of Traffic Scheduling in Time-triggered Ethernet |
| ZHANG Xiuzai,b,FAN Yang |
| (a.School of Electronics and Information Engineering;b.Jiangsu Collaboretive Innovation Center of Atmospheric Enivronment and Equipment Technology,Nanjing University of Information Science and Technology,Nanjing 210044,China) |
| Abstract: |
| Time-triggered Ethernet(TTE) combines time triggered technology with the flexibility,high bandwidth and other characteristics of traditional Ethernet,and solves the problems of high real-time and high reliability that traditional Ethernet cannot meet.Traffic scheduling is one of the key technologies in the TTE standard,which can effectively ensure reliable real-time communication in the TTE network.Firstly,the basic time synchronization mechanism of traffic scheduling is introduced,and the TTE traffic scheduling problem is mathematically described,including the topology of the TTE network,traffic model,and constraint conditions.Then,the research status of TTE traffic scheduling is emphasized,and the advantages and disadvantages of different scheduling algorithms and different application scenarios are analyzed and compared.The types of scheduling traffic,scheduling objectives,and scheduling properties of various scheduling schemes are summarized.Finally,the development direction and trend of TTE traffic scheduling are discussed. |
| Key words: time-triggered Ethernet time synchronization mechanism traffic scheduling |
