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首页> 外文期刊>Turkish Journal of Electrical Engineering and Computer Sciences >Designing and implementing a reliable thermal monitoring system based on the 1-wire protocol on FPGA for a LEO satellite
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Designing and implementing a reliable thermal monitoring system based on the 1-wire protocol on FPGA for a LEO satellite

机译：在FPGA上基于FPGA的1-wire协议设计并实现可靠的热监控系统

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摘要

Thermal control and monitoring is one of the most important factors in the design of satellite systems. An appropriate thermal design should make sure that the satellite's sensitive components remain in their nominated range, even under the vacuum condition of outer space. To achieve this purpose, a reliable and stable monitoring system is required. This paper proposes a monitoring system based on the 1-wire protocol, which provides the reliability requirements in the sensor networking and bus controller sections. In the networking section, we outline some practical topologies and discuss on their complexity and reliability. Despite the fact that the point-to-point topology is very robust for communication structures, the reliability analyses show that the loop-tree topology is the best structure for 1-wire networking. In addition, this paper proposes a robust bus controller based on combined time redundancy and triple modular redundancy on field-programmable gate arrays. The fault injection experiments reveal that the proposed time-based redundancy represents better outcomes alternative to hardware redundancy. Furthermore, the experiments show that the capability of tolerating single-event upset effects in the proposed method increases up to 7.8-fold with respect to a regular design.
机译：热控制和监视是卫星系统设计中最重要的因素之一。适当的热设计应确保即使在外层空间处于真空条件下，卫星的敏感组件也应保持在指定范围内。为了实现该目的，需要可靠且稳定的监视系统。本文提出了一种基于1-wire协议的监视系统，该系统提供了传感器网络和总线控制器部分的可靠性要求。在网络部分，我们概述了一些实用的拓扑，并讨论了它们的复杂性和可靠性。尽管事实上点对点拓扑对于通信结构非常健壮，但可靠性分析显示，环路树拓扑是1-wire网络的最佳结构。此外，本文提出了一种在现场可编程门阵列上基于组合时间冗余和三重模块冗余的鲁棒总线控制器。故障注入实验表明，所提出的基于时间的冗余代表了更好的结果，可替代硬件冗余。此外，实验表明，相对于常规设计，所提出的方法中容忍单事件烦躁效应的能力提高了7.8倍。

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