NASA 用电力调度延寿旅行者2号
推荐指数 47.0 NO. 014 · 2026.08.09
发布2026/08/08Score335Comments76
为什么值得看
NASA 通过名为"Big Bang"的功率调整策略，降低旅行者2号的电力需求，使其仅剩的50年老旧科学仪器能再运行一年。这对需要设计超长期自主运行系统的 AI 工程师有启发：如何在资源持续衰减条件下做动态优先级调度。
编辑判断
旅行者2号的电力调度逻辑本质上是一个带衰减约束的在线优化问题：每年固定损失4瓦，必须在科学仪器间做动态取舍。NASA 工程师选择关闭加热器而非直接关仪器，说明他们优先保硬件寿命而非即时数据产出，这和边缘 AI 设备在电池老化时的策略完全相反——后者通常选择降频保当前任务。
做机器人、卫星或野外传感器的团队可以借鉴这个思路：你的系统有没有"可牺牲的缓冲层"？不是直接砍核心功能，而是先剥离保护性资源。另外旅行者号的钚电池衰减模型是确定性的，但锂电池的衰减高度非线性，直接照搬会翻车。
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意见分歧 55 条评论
核心争论：50年老系统的知识传承危机：靠人还是靠AI来续命？
I ran a few research tasks at JPL, small dollar studies. We'd often recruit part time work from engineers around the lab through informal networks, (instead of the official channels that segment by "specialization"). One year, one of the developers on my task was the apparently last person who could
To be fair, nearly all of the science payloads on Voyager 1 & 2 have been shut down. The probes are doing very little. The doesn't take away from the very unique science they are doing but its a far cry from what the program offices were doing in 30-40 years ago. I'd expect anyone working on a Voyag
it might not have science payloads, but the science and engineering of at least talking to a 50 y/o satellite some 13,000,000,000 miles away is worth it right? right?