A Simulation Method of On-Star Router for Delay Tolerant Network

Abstract

The present invention proposes an on-board router emulation method of a delay tolerant network, comprising: 1. Combining CCSDS and DTNRG to construct an on-board router model, and verifying feasibility and effectiveness in OPNET; 2. Realizing virtualization based on the SITL interface of OPNET Conversion of data streams and real data streams to verify gateway processing capabilities; 3. Use STK to obtain interstellar and star-to-earth link data in the network topology, and import simulation software to simulate interstellar networks; 4. Delay and error codes for network damage meters rate and other related settings to simulate space links. Therefore, the present invention has the following advantages: the integration of the existing space communication protocol system has proposed the router model on the star, and some preparatory work has been done for the system-level realization of my country's DTN protocol system and even the key technology research of the space information network; the combination of software and hardware is more real The environment of the satellite network is simulated, which is helpful to verify the applicability of the on-board router to the space environment.

Description

Technical field [0001] The invention belongs to the two major fields of satellite network technology and computer technology, and specifically relates to a method for simulation of a router on a satellite of a delay tolerable network. Background technique [0002] At present, my country's aerospace industry has entered a period of rapid development. The number and types of spacecraft launched by my country have increased to a large extent compared with the past. The rapid development of aerospace technology and space applications has put forward an urgent need for space network research. The great success of the terrestrial Internet makes people naturally think of moving the working mode of the terrestrial Internet to the space network. The advantage of the terrestrial Internet IP protocol system is that it has high technology maturity, can greatly reduce aerospace costs, and is easy to upgrade. In 2001, the Goddard Space Center of the United States launched a research project ca...

AI Technical Summary

Problems solved by technology

This method can simulate the space network more realistically, but the simulation cycle is very long, which is close to the verification test system on the ground. Although the equipment development platform is on the PC, the overall framework of the entire communication software does not change during the transplantation process.

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