A satellite-ground system operation and maintenance method and system based on size model cooperation

By adopting a space-ground system operation and maintenance method based on big-small model collaboration, the problems of data processing bottlenecks and low knowledge reuse efficiency in traditional operation and maintenance models have been solved, realizing efficient and intelligent operation and maintenance of space-ground systems, and improving fault response capabilities and system reliability.

CN121660081BActive Publication Date: 2026-06-02NAT SATELLITE METEOROLOGICAL CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NAT SATELLITE METEOROLOGICAL CENT
Filing Date
2025-12-02
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Traditional human-led operation and maintenance models for satellite-ground systems struggle to handle massive amounts of heterogeneous data, lack dynamic perception and adaptive capabilities, resulting in insufficient timeliness of fault identification and location, difficulty in quickly reusing expert knowledge, and insufficient robustness of system operation and maintenance, thus failing to meet the business requirements of high timeliness and high reliability.

Method used

We adopt a space-ground system operation and maintenance approach based on large and small model collaboration. Through multi-level model linkage, we achieve intelligent management and control of the entire process, including data cleaning, feature extraction, knowledge graph construction, anomaly detection, trend prediction, root cause analysis and health assessment, and generate decision reports. We use a variety of technical means such as sliding window statistics, kernel principal component analysis, fast Fourier transform and attention weight reverse matching for data processing and analysis.

Benefits of technology

It enables accurate perception of complex hidden faults, forward prediction of system status, and rapid location of problem roots, improving operation and maintenance efficiency, reducing reliance on expert experience, shortening fault response and handling time, and forming a system with continuous evolution capabilities.

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Abstract

The application discloses a satellite-ground system operation and maintenance method and system based on size model cooperation, and belongs to the technical field of space operation and maintenance. The method comprises the following steps: cleaning, aligning, standardizing management, and extracting and labeling specific features of multi-source heterogeneous data of a satellite-ground system, identifying entities and relationships from multiple documents, and constructing an operation and maintenance knowledge graph covering the whole business chain by associating real-time data identification; according to a user input instruction, four types of small models of abnormality detection, trend prediction, root cause analysis, and health assessment are respectively called according to task types, and reasoning is completed according to related equipment parameters and historical case data in the satellite-ground system operation and maintenance knowledge graph to generate multi-source information; the generated multi-source information is fused and globally analyzed to generate decision output and generate an operation and maintenance decision report. The application realizes intelligent management and control of the whole process through multi-level model linkage, comprehensively improves operation and maintenance efficiency and system reliability, and provides technical support for efficient and stable operation of the satellite-ground system.
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