摘要
卫星具有覆盖范围广、抗灾害性强等特点,随着卫星研制与发射成本的不断降低,推动卫星与地面移动通信网络、物联网(IoT)、云计算中心深度融合,构建天地一体化网络和应用架构,已成为航天发展的重要方向。随着地面多用户、大数据量的接入,亟须开展卫星在轨数据处理技术相关研究,提升卫星的在轨服务能力和质量。本文提出了对卫星计算资源进行整合,构建天基边缘计算系统,并提出了天基边缘计算的3种资源管理策略和4种平台部署协同模式。此外,对天基边缘计算的优势和还需解决的关键技术进行了分析,并搭建了天基边缘计算原型系统,对不同计算卸载策略性能进行了分析。
Satellites are characterized by wide coverage,strong disaster resistance,etc. With the continuous cost decrease in the development and launch of satellites,it has become an important direction for space development to further integrate satellites with ground mobile communication network, Internet of Things(IoT), and cloud computing to build an integrated space-ground network and application architecture. With the access of multi-users and a large amount of data on the ground,it is urgent to carry out research on in-orbit data processing technologies to improve the capability and quality of satellite in-orbit service. In this paper,a space-based edge computing architecture is designed by utilizing satellite computation resources. Three resource management schemes and four platform coordination models are proposed. The advantages and key technologies for the space-based edge computing are analyzed. At last,a prototype system for the space-based edge computing platform is built to analyze the performances of different computation uploading schemes.
作者
张飞
陈小前
曹璐
覃江毅
汤敏
郭鹏宇
冉德超
ZHANG Fei;CHEN Xiaoqian;CAO Lu;QIN Jiangyi;TANG Min;GUO Pengyu;RAN Dechao(National Innovation Institute of Defense Technology,Academy of Military Sciences,Beijing 100071,China)
出处
《上海航天（中英文）》
CSCD
2022年第4期139-146,共8页
Aerospace Shanghai（Chinese&English）
基金
国防科技基础加强计划(2021-JCJQ-JJ-0834)
国家自然科学基金(61901504)。
关键词
天基边缘计算
云-边-端架构
计算卸载
云计算
边缘协同
space-based edge computing
cloud-edge-terminal architecture
computation offloading
cloud computing
edge computing coordination
作者简介
张飞(1988-),男,博士,助理研究员,主要研究方向为边缘计算、空天地一体化网络、卫星应用、机器学习等;通信作者:曹璐(1986-),男,博士,研究员,主要研究方向为宇航科学与技术、航天器设计。
