一种面向空间信息网络的星地协同计算迁移方法

An Approach of Spatial Information Network Oriented Satellite-Ground Collaborative Computing Migration

面向空间平台构建星地一体化的空间信息网络近年来成为信息网络建设的热点。传统的信息网络建设趋于流量驱动,以满足节点间的通信需求为主。空间信息网络的建设更着重于以应用业务中的任务为向导,牵引从通信资源到计算、存储资源的优化重组与协同服务。如何在应用任务与有限网络资源间形成联动机制,有效解决星上遥感数据存储、处理与传输能力受限的问题,是实现空间信息网络高效数据处理的关键技术问题。针对遥感数据星地协同处理的机制,在任务驱动的空间信息网络体系架构基础上,提出一种面向空间信息网络的星地协同计算迁移方法,建立了计算迁移的优化模型,提出了计算迁移的实现技术,通过案例仿真结果与分析,验证了该方法的可行性。

Recent years, orienting space platform to construct satellite-ground integrative spatial information network has become a hot topic of information network construction. Conventional information network construction tends to be flow driven to meet the communication requirement between nodes. The construction of spatial information network focuses more on taking tasks in the application business as guide, and pulls from communication resources to optimal recombination and cooperative ser-vice of computing and storage resources. How to form linkage mechanism between application tasks and limited network resources, which can effectively solve the capacity constrained problems of remote sensing data storage, processing and transmission, is the key technical problem to realize the efficient data processing in spatial information network. According to the mechanism of satellite-ground collaborative remote sensing data processing, based on the task driven spatial information network architecture, an approach of spatial information network oriented satellite-ground collaborative computing migration is presented. We build an optimization model of computing migration, propose the implementation technique of computing migration and verify the feasibility of the approach through results analysis of the simulation case.