Design and implementation of a low-cost fault-tolerant on-board computer for micro-satellite

Shiqiang Tian, Zuobiao Yin, Jian Yan, Xuming Liu
<span title="">2012</span> <i title="IEEE"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/uu3wlktbenfcjj7rjvwivgid6e" style="color: black;">7th International Conference on Communications and Networking in China</a> </i> &nbsp;
In recent years, as an important frontier of astronautics, micro-satellites have been widely used for various space-oriented missions. During various on-board components, the on-board computer (OBC) is essential to take charge of many tasks such as command and data handing, communication and payload management. However, the resources on micro-satellites are so limited that the OBC should not only meet the requirements of excellent performance and high reliability, but also be in proper power
more &raquo; ... sumption and cost. The purpose of this paper is to present a solution for developing a low-cost, low power consumption and reliable OBC system for micro-satellites. The proposed system is based on commercial-off-the-shelf (COTS) components and Linux operating system. Besides, considering the harsh space environment, a set of fault tolerant strategies are introduced to improve the reliability of the OBC. Finally, the analysis and test results are provided to illustrate the relatively low-cost, low power consumption and high reliability of the proposed OBC system.
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