HLA-based (High Level Architecture-based) distributed simulation support platform and implementation method thereof

A distributed simulation and support platform technology, applied in the direction of instruments, electrical components, control/regulation systems, etc., can solve problems such as non-compliance, signal congestion, lack of architecture, etc., to improve efficiency, reduce time overhead, and increase throughput Effect

Inactive Publication Date: 2012-09-12
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The disadvantages of HPC-RTI: firstly, HPC-RTI is just a kind of RTI, and it does not conform to the HLA / RTI specification in many aspects, such as the proxy mechanism in the process of subscription and publishing; the communication between simulation instances is not through RTI, But DSMS (distributed simulation management service)
Secondly, it can only run on computer clusters, and requires a standard HLA / RTI for external support, which splits the distributed co-simulation support environment into two parts, lacking a unified architecture
Thirdly, multiple nodes sharing a Gateway (Gateway) is likely to cause signal "blocking" and reduce the transmission speed of information

Method used

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  • HLA-based (High Level Architecture-based) distributed simulation support platform and implementation method thereof
  • HLA-based (High Level Architecture-based) distributed simulation support platform and implementation method thereof
  • HLA-based (High Level Architecture-based) distributed simulation support platform and implementation method thereof

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Embodiment 1

[0037] Preferred Embodiment 1: The HLA-based distributed simulation support platform of the present invention includes a high-performance computing cluster compatible with an RTI system unit, and the RTI system unit is deployed on the high-performance computing cluster. The HPC Compatible RTI System Unit supports the interoperability of simulation models on HPC clusters and PC networks.

[0038]On a high-performance computing cluster, federation members and cluster computing nodes have a one-to-many relationship. In this one-to-many relationship, one federation member is deployed on one computing node, or a federation member with high computing overhead is deployed on multiple computing nodes, and the parallel computing capability of the high-performance computing cluster is used to improve the computing efficiency of the federation members and the entire federation.

[0039] On the personal computer network, high-performance computing clusters compatible with RTI have RTI fun...

Embodiment 2

[0042] Preferred embodiment two: the architecture of TH_RTI is as follows figure 2 shown. The federation members are organized hierarchically. Federation members within the local area network are interconnected and interoperable through LRC (local RTI component, including libRTI and RTIA). On the upper layer of the LAN, the local RTI server (local RTI server) conducts unified management and communication through TH_RTI Gateway.

[0043] In TH_RTI, the interface function library libRTI provides compilation and connection interfaces for the development of federation members, and provides a series of services defined by HLA interface specifications for member developers. Currently provided is a C++ library. libRTI provides various service requests of HLA to federation members through RTI ambassador process (RTI::RTIAmbassador), and federation member process submits requests to RTI's local agent process RTIA through local socket. RTIAmbassador encapsulates the services provid...

Embodiment 3

[0046] Preferred Embodiment 3: The reflective memory card is a special network card, which embodies the idea of ​​shared memory in a local area network. It is similar to other network cards in terms of communication function, and has its own characteristics in data transmission mechanism. The launch memory card is deployed on the optical fiber private network, sharing the same set of virtual addresses to achieve fast data synchronization. Such as image 3 It is a schematic diagram of deploying reflective memory cards in an optical fiber network. Data written to a reflective memory card is quickly copied to the same address in other shared memory on the network within 400 nanoseconds.

[0047] Schematic diagram of the integration of reflective memory network and TH_RTI by Figure 4 Given, the service interface of federation members is uniformly provided by TH_RTI. For those involving small data interaction and frequent calls, such as creating a federation, joining a federati...

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Abstract

The invention discloses an HLA-based distributed simulation support platform and an implementation method thereof, which are designed to solve the defects of the conventional HLA distributed simulation system in terms of operating performance and communication flow. The HLA-based distributed simulation support platform comprises a high-performance computing cluster compatible RTI (Run-Time Infrastructure) system unit, a reflective memory network and a federate deployment module, and provides HLA interface specification-based service for a simulation model. The implementation method for the HLA-based distributed simulation support platform is as follows: an interface function library provides service requests for federates via an RTI ambassador process, and federate processes submit the requests to an RTI via an RTI ambassador; the federates are interconnected and interoperated in a local area network, and a local RTI server centrally carries out management and communication. The invention achieves the state that the whole simulation federates can coordinatively advance, and increases the efficiency of distributed simulation; and the reflective memory network accelerates data synchronization.

Description

technical field [0001] The invention relates to an HLA-based distributed simulation support platform and a realization method thereof. Background technique [0002] Distributed simulation is a new stage of development of traditional simulation technology. It mainly studies the correct, coordinated and efficient operation of simulation applications on several interconnected nodes. Distributed simulation originated from the SIMNET (SIMulator NETworking) project in the 1980s, which aims to connect combat simulators distributed across the United States through a network for large-scale collaborative combat simulation. After that, distributed simulation has gone through different technical protocol stages: Aggregate Level Simulation Protocol ALSP (Aggregate Level Simulation Protocol), Distributed Interactive Simulation DIS (Distributed Interactive Simulation), high-level architecture HLA (High Level Architecture), etc. [0003] HLA was first proposed by the US Department of Defe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08G05B17/02
Inventor 范文慧岳英超肖田元
Owner TSINGHUA UNIV
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