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首页> 外文期刊>International journal of aerospace engineering >Data Analysis and Results of the Radiation-Tolerant Collaborative Computer On-Board OPTOS CubeSat
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Data Analysis and Results of the Radiation-Tolerant Collaborative Computer On-Board OPTOS CubeSat

机译：耐辐射协同计算机车载OPTOS CubeSat的数据分析和结果

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The current evolution of the space missions demands to increase the computing capacities of the on-board computer while reducing its power consumption. This requirement evolves faster than the ability of the manufacturers to develop better space-qualified processors. To meet the strong requirements, the National Institute of Aerospace Technology has developed a distributed on-board computer based on commercial off-the-shelf (COTS). This computer, named OPTOS, provides enhanced computational capacities with respect to what computers of other small satellites typically provide. To maintain the reliability needed to perform typical critical activities such as real-time maintenance or current surveillance, authors have conceived a set of collaborative hardening techniques, taking advantage of the distributed architecture of the OPTOS On-Board Computer. The 3-year mission data analysis shows the feasibility of the collaborative hardening techniques implemented, despite using SEU sensitive devices. The authors describe the processes and tools used to analyse the data and clearly expose the functional errors found at unit level, while the system remains unfaulty and reliable thanks to the collaborative techniques.
机译：当前太空任务的发展要求在降低功耗的同时增加机载计算机的计算能力。该要求的发展速度比制造商开发更好的空间合格处理器的能力快。为了满足严格的要求，美国国家航空航天技术研究所开发了一种基于商用现货（COTS）的分布式机载计算机。与其他小型卫星的计算机通常提供的功能相比，这种名为OPTOS的计算机提供了增强的计算能力。为了维持执行诸如实时维护或当前监视之类的关键任务所需的可靠性，作者构想了一套协作强化技术，以利用OPTOS车载计算机的分布式体系结构。尽管使用了SEU敏感设备，但为期3年的任务数据分析显示了实施协作强化技术的可行性。作者描述了用于分析数据的过程和工具，并清楚地揭示了在单位级别发现的功能错误，而由于协作技术，该系统保持了无故障且可靠的状态。

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