中国空间科学技术

中国空间科学技术

• • 上一篇    下一篇

分布式卫星嵌入式计算机系统结构设计方法

李新明;李小将;李艺;刘东;   

  1. 装备指挥技术学院重点实验室;南京理工大学计算机学院;
  • 发布日期:2010-04-25

Method of Designing Embedded Computer System Architecture in Distributed Satellite

Li Xinming1,2 Li Xiaojiang1 Li Yi1 Liu Dong1(1 Academy of Equipment Command & Technology,Beijing 101416)(2 School of Computer,Nanjing University of Science & Technology,Nanjing 210094)   

  • Online:2010-04-25
  • Supported by:
    973国家安全重大基础研究发展项目(5131202-3);; 863国家高技术研究发展计划(2006AA01Z447)

被引次数

1

摘要： 针对分布式卫星的运行环境和任务特点,综合考虑分布式卫星嵌入式计算机系统在可靠性、安全性和实时性方面的要求,提出了一种基于三级容错的主辅式双系统体系结构设计方法。论文分析了分布式卫星的特点和星上嵌入式计算机系统的设计要求,对三级容错设计、主辅式双系统安全设计以及基于可信平台模块(TPM)的辅系统设计进行了详细的阐述。该设计方法已成功应用于地面原理验证系统中,结果表明其可以很好地解决分布式卫星嵌入式计算机系统的可靠性、安全性和实时性问题。

关键词: 嵌入式计算机, 三级容错, 主辅式双系统

Abstract: Being an advanced technique of spacecraft system,the distributed satellite has become one of the research hotpots.According to the running environment and the tasks of distributed satellite,and considering its reliability,security,and real-time requirements,a design method of master-assistant dual-system architecture based on three-level fault-tolerance was presented.The properties and design requirements of distributed satellite were discussed.And the designs of three-level fault-tolerance,security mechanism of master-assistant dual-system,and assistant system based on trusted platform module (TPM) were introduced.The design method has been tested in a prototype system.It showed that the system effectively resolved the reliability,security,and real-time problems of the distributed satellite.