Optics and Precision Engineering, Volume. 30, Issue 2, 137(2022)

Multi-state reliability modeling method for Tianwen-1 high-resolution camera

Yan WANG... Tianyu SUN, Quanquan LUO, Yang LI and Xiaobo LI* |Show fewer author(s)
Author Affiliations
  • Space Department III, Changchun Institution of Optics,Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun130033, China
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    Figures & Tables(9)
    Schematic of Mars high-resolution comera composition
    Schematic of state transition
    Degradation zone definition
    Simulation flow path
    Relationship between state occurrence probability and working time
    Reliability simulation Result
    Reliability gap
    • Table 1. States of camera

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      Table 1. States of camera

      类型状态描述常见故障模式
      0图像质量复核要求,各项指标在公差范围内
      1性能下降,调整后可恢复性能离焦、拍摄参数错误
      2性能下降,不可恢复,仍可执行任务部分探测器损坏,坏点增加
      3系统失效无法执行任务结构损坏、关键器件失效(如通讯FPGA)
    • Table 2. Units reliability parameters

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      Table 2. Units reliability parameters

      系统MTBF/h状态
      主控单元1×1060,2,3
      存储单元1.3×1060,2,3
      热控单元1×1070,1,2,3
      成像单元0.8×1060,1,2,3
      光机结构1.2×1060,1,2,3
      调焦单元0.5×1060,2,3
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    Yan WANG, Tianyu SUN, Quanquan LUO, Yang LI, Xiaobo LI. Multi-state reliability modeling method for Tianwen-1 high-resolution camera[J]. Optics and Precision Engineering, 2022, 30(2): 137

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    Paper Information

    Received: Sep. 25, 2020

    Accepted: --

    Published Online: Mar. 4, 2022

    The Author Email: LI Xiaobo (lixiaobo104@163.com)

    DOI:10.37188/OPE.20223002.0137

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