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Risk Evaluation of Embedded Linux in Aerospace based on Cloud Model

Volume 14, Number 12, December 2018, pp. 3220-3227
DOI: 10.23940/ijpe.18.12.p31.32203227

Yu Sua, Yushuai Liua,b, Li Suna,b, Zhexi Yaoa,b, and Jinbo Wanga

aTechnology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing, 100094, China
bUniversity of Chinese Academy of Sciences, Beijing, 100094, China

(Submitted on September 10, 2018; Revised on October 8, 2018; Accepted on November 20, 2018)


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.


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