A simulation test data acquisition system based on a DDS

Abstract

The invention discloses a simulation test data acquisition system based on a DDS (Data Distribution Service). The method mainly comprises the following steps: acquiring a data acquisition task to be executed, wherein the data acquisition task comprises a model definition of the acquisition data; Setting a quality of service (QoS) policy of the data acquisition task according to the requirements ofthe model of the data acquisition; acquiring The updated data samples of the data model according to a quality of service strategy of the data acquisition task, wherein the data model at least comprises a type identification of a node system. The invention can be used for collecting and recording the test data in the joint simulation test environment constructed based on DDS, simplifies the operation flow of the data collection, improves the real-time performance and accuracy of the data collection, and increases the flexibility and expansibility of the joint simulation test environment.

Description

Technical field [0001] The invention relates to a simulation test data acquisition system based on DDS. Background technique [0002] With the continuous promotion of new network technologies, distributed simulation systems have been extensively studied and applied. The traditional distributed system adopts the C / S (Client / Server) architecture of tightly coupled interaction mode, which makes the scalability and tailoring of the entire system relatively poor, especially for large-scale and complex systems. In order to adapt to the new requirements of large-scale, decentralized control and dynamic reorganization, the data-centric interaction model is increasingly being applied to distributed systems. There is no need to directly establish a connection between the components for interaction, and only need to directly publish or subscribe to the corresponding data to the distributed middleware platform to achieve the purpose of interaction between the components. [0003] At present,...

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Problems solved by technology

In the simulation system based on DIS, although the structure of the message is a part of the protocol (such as protocol data unit PDU), the data acquisition is direct, but there are deficiencies and limitations in the standard, protocol and application of DIS technology, in order to make up for the defects of DIS The US Defense Modeling and Simulation Office (DMSO) proposed a high-level architecture (High Level Architecture), but HLA lacks a data exchange protocol standard (such as the protocol data unit PDU in DIS) to define the data exchange format, and can only perform indirect data collection, and HLA cannot meet the needs of large-scale distributed simulation systems in terms of real-time

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