天地一体化信息网络2026，Vol.7Issue(1)：91-101,11.DOI:10.11959/j.issn.2096-8930.2026010
面向天基计算的故障表征与容错机制
Fault Characterization and Fault-Tolerant Mechanism for Space-Based Computing
摘要
Abstract
With the rapid development of commercial aerospace,space-based computing systems are confronted with dual challenges of high failure rates caused by space radiation and the surging demand for computing power resulting from the rapid increase in mission scale.To enhance the reliability and computing efficiency of commercial devices,a four-dimensional system model that includes the physical layer,fault layer,task layer and evaluation layer is constructed,and the"effective average computing power"index to reveal the intrinsic connection between task scheduling and resource allocation is proposed.On this basis,a dynamic fault-tolerant mechanism is designed.Through the coupling modeling of spatio-temporal resources and the adoption of a hybrid optimization strategy,the collab-orative balance of faults-computing power-resources is achieved.Through Monte Carlo simulation evaluation,a hybrid fault-tolerant algorithm integrating redundant configuration,checkpoint optimization and task migration is proposed,which increased the average ef-fective computing power of the system by approximately 39.20％,providing theoretical support and feasible technical paths for the in-orbit reliability guarantee of space-based computing systems.关键词
容错计算/天基计算/时空资源建模/混合容错算法Key words
fault-tolerant computing/space-based computing/spatio-temporal resource modeling/hybrid fault-tolerant algorithm分类
信息技术与安全科学引用本文复制引用
史冰冰,李泓辛,刘垚圻,周浩,谭海宁,韩银和..面向天基计算的故障表征与容错机制[J].天地一体化信息网络,2026,7(1):91-101,11.基金项目
国家自然科学基金(No.62025404) （No.62025404）
北京市自然科学基金(No.L241013,No.L258047) The National Natural Science Foundation of China(No.62025404),The Beijing Natural Science Foundation(No.L241013,No.L258047) （No.L241013,No.L258047）
