Int J Performability Eng ›› 2018, Vol. 14 ›› Issue (12): 3220-3227.doi: 10.23940/ijpe.18.12.p31.32203227

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Risk Evaluation of Embedded Linux in Aerospace based on Cloud Model

Yu Sua*(), Yushuai Liuab, Li Sunab, Zhexi Yaoab, and Jinbo Wanga   

  1. a Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing, 100094,China
    b University of Chinese Academy of Sciences, Beijing, 100094, China
  • Revised on ; Accepted on
  • Contact: Su Yu


For the fuzziness and randomness of risk assessment of aerospace embedded Linux, a comprehensive assessment method of aerospace embedded Linux based on cloud model theory is proposed. Cloud model was used to replace the traditional membership function. Seven factors of embedded Linux were selected as the risk assessment set, and the risk level was established. By using test data and expert scoring cameras, the weight coefficient matrix and comprehensive evaluation matrix are constructed by the reverse cloud generator, and the comprehensive evaluation grade was obtained by the forward cloud generator. Taking Linux based on PREEMPT-RT patch as an example, the risk assessment method of space embedded Linux based on cloud model was validated. The results show that the assessment method is effective and feasible.

Key words: cloud model, risk assessment, comprehensive fuzzy evaluation method, membership function