Multi-source data fusion processing method and system in space-ground integrated information network

Abstract

The invention provides a multi-source data fusion processing method and system in a space-ground integrated information network. The method comprises the following steps: the space-ground integrated information network performs real-time management and control on a network state and resources according to a logic management level; segmenting a plurality of tasks acquired within a certain time by the ground control center, and fusing the tasks according to a relationship among the tasks to form a multi-task execution graph; sub-tasks of the multi-task execution graph are grouped and abstracted, and a total-order abstract task graph is formed after serialization; the ground control center carries out processing path planning according to the network view of the controlled network domain and the serialized abstract task graph, and carries out minimum-cost deployment planning on abstract tasks; the controller in the control layer splits the received abstract task and carries out processing path planning and task deployment planning; after receiving the subtasks, the execution layer calculates and transmits the tasks according to a calculation strategy and a flow table issued by the control node; and returning the calculation result to the user.

Description

technical field [0001] The present invention relates to the field of task processing and data transmission, in particular, to a multi-source data fusion processing method and system in a space-ground integrated information network, and more specifically, to a software-defined multi-source data fusion processing method and system in a space-ground integrated network . Background technique [0002] The space-ground integrated information network is a huge and complex network architecture that integrates space-based and ground-based networks. The ground-based network is mainly composed of the ground Internet and the mobile communication network. The main goal of space-ground integration is to provide global users with low-latency, high-bandwidth communication services, realize the interconnection of global networks across time and space, and optimize the use of network resources. [0003] Software-defined networking technology is an emerging network management method that ena...

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Problems solved by technology

However, this scheme does not consider the possibility of reducing network load through task calculation in the process of data routing

[0008] In addition, there are other transmission and computing schemes based on software-defined space-ground integration networks, but their research first did not consider the hierarchical nature of node management in space-ground integration networks According to this hierarchy, the complexity of path planning and task deployment can be greatly reduced. In addition, they did not consider the possible correlation of tasks in the space-ground integrated network, but dealt with each task separately, which increased the ground The load of the control center, and the loss of network resources can be further reduced

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