System simulation device, method and system based on distributed bus and medium

Abstract

The invention provides a distributed bus-based system simulation device, method and system and a medium. The distributed bus-based system simulation device comprises a link layer, a transmission layer and an application layer, the link layer provides server-free and expanded network communication capability for each node based on a distributed data communication service of publishing and subscribing; the transmission layer issues the data to a specified theme according to routing information contained in a unified data packet by appointing the unified data packet; and the application layer uses a specific field of a packet to represent a cooperative control command and calculation data on the basis of the message capability provided by the link layer and the transmission layer. According to the invention, a plurality of subsystem simulation modules of a large simulation system are deployed on a plurality of computing platforms, and data exchange between the modules is carried out through a distributed bus, so that distributed system simulation is realized; by adopting the simulation system constructed by the distributed bus, distributed deployment of the simulation system is realized, and the method has the characteristics of low coupling among the nodes, flexible deployment network structure, great improvement of the parallel computing capability of the nodes and improvement of the operation efficiency.

Description

technical field [0001] The present invention relates to the technical field of distributed buses, in particular to a system simulation device, method, system and medium based on distributed buses. Background technique [0002] Distributed Queue Dual Bus (DQDB) is a metropolitan area network (MAN) data link layer communication protocol defined in the IEEE 802.6 standard, and is mainly used in metropolitan area networks (MAN). DQDB is designed for data, as well as voice and video transmission, it is based on cell switching technology (similar to ATM). In addition, DQDB is an open standard (open standard), and its design is compatible with carrier transmission standards (such as SMDS), and uses two unidirectional logic buses to interconnect multiple systems. [0003] In the patent document with the publication number CN111507020A, a graphical display method for the distributed simulation results of the multi-electric aircraft electromechanical system is disclosed. The method i...

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Problems solved by technology

[0004] Existing non-distributed simulation systems have a high degree of coupling between subsystems, and generally need to be deployed on a platform with high computing power. Although deployment through traditional network methods can reduce the computing power requirements for a single computing platform, it also requires A large number of customized designs and implementations are required for system communication assurance, and the cascading characteristics of its subsystems greatly increase the complexity of deployment and the difficulty of using the process

[0005] Although most non-distributed simulation systems have relatively complete functions, they have high computing power requirements for computing platforms, and general computing platforms cannot meet the requirements for parallel computing, resulting in a mismatch between cost and efficiency

In addition, in the non-distributed simulation system, the interface of each subsystem is often a special agreement to achieve transmission efficiency. When the system needs to be expanded or modified in the later stage, the change will be relatively large. When adding subsystems, it will also face the shortage of overall computing resources, which will lead to a decrease in simulation efficiency. question

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