SDN-based hardware-in-the-loop centralized simulation platform for spatial information network and its implementation method

Abstract

The invention provides an SDN-based space information semi-object centralized simulation platform and a realization method thereof. The space information semi-object centralized simulation platform realization method is capable of controlling real nodes and virtual nodes in a united manner. Real data flows are generated among network nodes during a working process of the simulation platform, so authenticity of the simulation is ensured to largest degree. A framework is flexible and expandable, so reconfigurable, large-scale and multi-layered network simulation requirements of a space information network can be fully met. A network device and a node device are opened totally based on a principle which can be customized by users. Specific parameters of a network are defined according to actual conditions of the network and simulation result information is timely monitored, counted and fed back.

Description

technical field [0001] The invention relates to the technical field of computer simulation, in particular to an SDN-based semi-physical centralized simulation platform for spatial information networks and an implementation method thereof. Background technique [0002] The spatial information system has advantages that cannot be replaced by other systems, and various spatial information is an indispensable guarantee for serving the national economic construction and national security. The space information network is a network system that acquires, transmits and processes space information in real time with space platforms (such as geostationary satellites or medium- and low-orbit satellites, stratospheric balloons, and manned or unmanned aircraft) as carriers. [0003] In order to be able to test the space information network, a half-in-the-loop high-fidelity ground simulation environment is needed to meet the key technologies of the physical layer of the space-ground integr...

AI Technical Summary

Problems solved by technology

The traditional centralized simulation platform mainly realizes point-to-point spatial channel simulation through software channel simulation. In terms of the authenticity of simulation parameters, the obtained data results are relatively credible and reliable, but the flexibility and reproducibility of network simulation In terms of structure, it is impossible to form a flexible and scalable simulation platform; and the test cost of various hardware-in-the-loop simulation equipment is huge, and the purpose is relatively single, and the cost-effectiveness of establishing a centralized and unified large-scale simulation platform is very low.

The distributed simulation platform can combine the simulation devices in multiple experimental sites for simulation through the public network or local area network. Although it has scalability, the authenticity and flexibility of the simulation are not good. The link characteristics are difficult to control, and a real, reliable and flexible networking simulation platform cannot be well formed; the self-built simulation systems of each unit vary greatly, focusing on a single key technology, which is relatively closed and difficult to adapt to the whole network simulation

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