用于空间太阳天文台的冗余容错控制系统关键技术研究

Space is the most optimal place for astronomical observation. With the development of Chinese space astronomy technology, our observation mission has become increasingly complex. So we require an enhancement of reliability of the control system of space observatory. For all we know, there are unfavorable conditions in the space environment which could lead to controller failure, such as extreme temperature, radiation, high vacuum, magnetic and so on. Consequently, improvement in reliability and security of the satellite-bone control system has become a significant demand of space observatory. This project will study the technologies of full-disk vector magnetograph of ASO-S，and build a distributed real-time fault-tolerant platform based on satellite-bone processor and SOPC. On the platform we can research on redundant fault tolerant technology for control system of space instrument, which includes strategy of cold backup awakening based on dual processor, hot standby switching technology, on-chip multi-core system redundancy technology, dynamic reconfiguration at failure, satellite-bone bus redundancy technology and satellite-bone power redundancy technology. Based on previous related researches, we will deepen the research to ensure long-term stable operation of control system of astronomical instruments in space environment. The achievement of this project will not only play an important role in technical support for ASO-S and a series of deep space solar observing satellites, but also offer assurance for normal operation in unmanned ground telescopes and those located in extreme asperity environment.

空间是进行天文观测的最佳场所，随着我国空间天文技术的发展，观测任务日趋复杂，对空间天文台控制系统的可靠性提出了更高的要求。空间环境中存在的辐射、极端温度、高真空及微磁场等不利因素，都会引起控制器失效，所以提高星载控制系统的可靠性与安全性成为空间天文台的重要需求。本项目将以先进天基太阳天文台计划搭载的全日面矢量磁像仪的复杂控制系统为对象，构建一套基于星上处理器和可编程片上系统的分布式实时容错平台，研究空间仪器控制系统的冗余容错技术，包括双处理器冷备份唤醒策略、热备份切换技术，片上系统多核冗余技术、遇故障动态重构技术，星上总线冗余技术，星上电源冗余等技术。以前期相关预研课题为基础，对天文仪器控制系统能在空间环境下长期稳定运行进行深化研究。该项目的研究将对先进天基太阳天文台以及系列太阳探测卫星起到技术支持作用，也可用于保障地基无人值守望远镜或极端台址环境下天文仪器的正常工作。

空间是进行天文观测的最佳场所，随着我国空间天文技术的发展，观测任务日趋复杂，对空间天文台控制系统的可靠性提出了更高的要求。空间环境中存在的辐射、极端温度、高真空及微磁场等不利因素，都会引起控制器失效，所以提高星载控制系统的可靠性与安全性成为空间天文台的重要需求。本项目以先进天基太阳天文台计划搭载的全日面矢量磁像仪的复杂控制系统为对象，初步建立了一套基于可编程片上系统的分布式实时容错平台，研究了空间仪器控制系统的冗余容错技术，包括双处理器冷备份唤醒策略、热备份切换技术，片上系统多核冗余技术、动态重构技术，星上总线冗余技术等。该项目的研究将对先进天基太阳天文台以及系列太阳探测卫星起到技术支持作用，也可用于保障地基无人值守望远镜或极端台址环境下天文仪器的正常工作。