航天器可应用实时以太网分析

邱爱华; 张涛; 顾逸东

doi:10.11728/cjss2015.03.368

航天器可应用实时以太网分析

doi: 10.11728/cjss2015.03.368

1.
中国科学院空间应用工程与技术中心北京 100094
2.
中国科学院大学北京 100049

基金项目: 国家部委资助项目

详细信息

中图分类号: V474
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出版历程
- 收稿日期: 2014-03-22
- 修回日期: 2014-09-30
- 刊出日期: 2015-05-15

Analysis on Application of Real-Time Ethernet in Spacecraft

1.
Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094
2.
University of Chinese Academy of Sciences, Beijing 100049

摘要

摘要: 在航天器上应用以太网的目的是借助以太网的灵活性, 获得方便的通信接入及数据传输的高带宽, 并且能适应控制领域通信的实时性和确定性. 实时以太网的确定性、通信调度机制和传输特征是其满足航天器网络通信特性需求的主要判定依据. 通过分析航天器数据通信特点, 对比实时以太网通信调度策略, 得出应用于航天器的实时以太网应具备时间同步、强实时性、确定性、高带宽、多数据类型、双通道冗余及兼容标准以太网等特征.
- 实时以太网 /
- 航天器 /
- 确定性 /
- 可靠性 /
- 通信调度
Abstract: The main purpose to use Ethernet in spacecraft is to take advantage of its flexibility to meet the requirement of communication access convenience, simultaneously take into account that Ethernet has high bandwidth and data rates, and expect that it has both real-time and deterministic in control field. Looking for some real time network is the priority of the spacecraft using Ethernet. The deterministic scheduling mechanism of communication and transmission characteristics of real-time Ethernet has become a main determination of whether the Ethernet can meet the demand of spacecraft network traffic characteristics. According to the analysis of data communication characteristics in spacecraft, and comparison of real-time Ethernet communication scheduling strategy, the real-time Ethernet applied in spacecraft should has time synchronization, strong real-time, deterministic, high-bandwidth, containing multiple data types, dual redundant channels, meanwhile it is compatible with standard Ethernet.
- Real-time Ethernet /
- Spacecraft /
- Deterministic /
- Reliability /
- Communication scheduling

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参考文献(6)

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