基于三模冗余设计的低成本高可信微纳通用计算机

Low-cost and High-reliability Universal Nano-OBC Based on TMR

引入商用现货技术成为微纳卫星设计的发展趋势;针对微纳卫星电子系统低成本、小型化、高可靠的应用发展需求,分析对比国内外微纳卫星星载计算机设计特点,提出一种基于三模冗余设计的低成本、高可信微纳通用计算机体系架构,利用接口标准化、软件分层化设计和三模冗余、硬件看门狗等加固设计,构建了一套通用、稳定、可靠的电子系统,并展望了其在科学实验与新技术演示验证、分布式空间系统、军事等方面良好的应用前景。

The introduction of commercial off-the-shelf（COTS） technology into micro-nano satellite design becomes a development trend.In view of low cost,miniaturization and high reliable application development needs of micro-nano satellite electronic system,the design features of micro-nano satellite＇ s on-board computer（OBC） are compared both at home and abroad.A low cost and high reliable micro-nano universal OBC architecture based on the triple modular redundancy（TMR） is put forward.Using standard interface,layered software and TMR,hardware watchdog design,a kind of general,stable and reliable electronic system is designed and its good application prospect in the scientific experiment and new technologies demonstration,distributed space systems and military is discussed.