Simulation method based on DR smoothing algorithm and DDS-QOS

Abstract

A simulation method based on a DR smoothing algorithm and DDS-QOS is disclosed. Multiple emulation entities are provided, the simulation entities communicate with each other in a publish-subscribe mode, a DR algorithm is use for predicting and use the data obtained before when a simulation entity needs to update the data of other simulation entities, and when the error tolerance is exceed, the correction data is smoothed at a sending end or a receiving end. The simulation entity comprises a plurality of simulation entities, wherein the simulation entities adopt a publish-subscribe mode for data exchange between the simulation entities, and when the data obtained before the simulation entity needs to update the data of other simulation entities, the DR algorithm is used for predicting andusing the data. The DR algorithm is introduced into the simulation calculation, when the error accumulates to a certain range and exceeds the error tolerance, the new position information is synchronized, which avoids the process of data exchange among distributed nodes every time the position is updated, reduces the frequency of data communication and improves the efficiency of simulation. Through smoothing of the error and reducing the amount of calculation, the error is small, and the phenomenon of image jump is alleviated.

Description

technical field [0001] The present invention relates to a simulation calculation method, in particular, it relates to a simulation calculation based on DDS (Data Distribution Service) using DR (Dead Reckoning) third-order algorithm to reduce network traffic and improve system performance Calculation method. Background technique [0002] In the existing distributed interactive simulation, in order to maintain the consistency of entity behavior among various simulation systems, it is usually necessary to transmit the motion trajectory data of each entity through a communication network to realize the data synchronization of each terminal. Object Management Group (OMG) achieves the purpose of comprehensive integration of various simulation systems by formulating technical specifications of distributed real-time communication middleware. These specifications include HLA, CORBA, DDS, etc., among which DDS is a new generation of distributed real-time communication middleware tech...

AI Technical Summary

Problems solved by technology

When the simulation nodes in a distributed environment are geographically separated by a certain distance, it takes time to transmit information from one node to another, resulting in a delay in the delivery time

Problems such as network delay and congestion greatly affect the efficiency of distributed simulation and reduce user experience

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