用智能代理AI自动检测深空网络设备异常,提升航天通信可靠性
Automating the Deep Space Network Data Systems; A Case Study in Adaptive Anomaly Detection through Agentic AI
- 构建基于强化学习与大模型的智能代理系统,实时识别设备异常
- 实现从数据采集到异常诊断全流程自动化,支持持续优化
- 适合航天工程、工业监测领域从业者参考
深空网络(DSN)是美国宇航局最大的天线设施网络,生成大量多变量时间序列数据。这些设施中的天线和发射机随时间退化,可能导致数据流中断,威胁数十个依赖DSN维持地月通信的航天器。本研究旨在探索多种方法,帮助喷气推进实验室(JPL)工程师通过数据直接定位异常和设备退化,以保障未来深空任务的运行与维护。我们研究了多种机器学习技术,实现数据的完整重建,并通过统计计算与阈值判断实时数据集中的异常。在训练好的模型基础上,集成强化学习子系统对异常按严重程度分类,以及大语言模型为每条异常生成解释,均可通过人工反馈不断优化。针对DSN发射机,我们还构建了完整的数据流水线,整合数据提取、解析与处理流程,此前无统一程序执行此任务。利用该流水线,将天线数据训练的模型串联起来,完成整个异常检测的数据闭环。所有模块由智能代理系统统一调度,通过复杂推理完成异常分类与预测。
原文摘要 · Abstract (English)
The Deep Space Network (DSN) is NASA's largest network of antenna facilities that generate a large volume of multivariate time-series data. These facilities contain DSN antennas and transmitters that undergo degradation over long periods of time, which may cause costly disruptions to the data flow and threaten the earth-connection of dozens of spacecraft that rely on the Deep Space Network for their lifeline. The purpose of this study was to experiment with different methods that would be able to assist JPL engineers with directly pinpointing anomalies and equipment degradation through collected data, and continue conducting maintenance and operations of the DSN for future space missions around our universe. As such, we have researched various machine learning techniques that can fully reconstruct data through predictive analysis, and determine anomalous data entries within real-time datasets through statistical computations and thresholds. On top of the fully trained and tested machine learning models, we have also integrated the use of a reinforcement learning subsystem that classifies identified anomalies based on severity level and a Large Language Model that labels an explanation for each anomalous data entry, all of which can be improved and fine-tuned over time through human feedback/input. Specifically, for the DSN transmitters, we have also implemented a full data pipeline system that connects the data extraction, parsing, and processing workflow all together as there was no coherent program or script for performing these tasks before. Using this data pipeline system, we were able to then also connect the models trained from DSN antenna data, completing the data workflow for DSN anomaly detection. This was all wrapped around and further connected by an agentic AI system, where complex reasoning was utilized to determine the classifications and predictions of anomalous data.
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