|Table of Contents|

UML-HLA collaborative modeling method and its application in multi-train simulation system(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2013年04期
Page:
108-115
Research Field:
交通信息工程及控制
Publishing date:

Info

Title:
UML-HLA collaborative modeling method and its application in multi-train simulation system
Author(s):
SHANGGUAN Wei1; 2;  LIU Peng-hui1;  CAI Bai-gen1;  SHAO Yong-zhe1
1. School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China; 2. State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China
Keywords:
train control system;  multi-train simulation;  unified modeling language;  high level architecture;  distributed interactive simulation
PACS:
U283.2
DOI:
-
Abstract:
Aimed at the distributed and interactive properties of complex real-time large system, through a comprehensive comparison of unified modeling language(UML)and high level architecture(HLA)features, a modeling and simulating method of train control system was proposed based on high level architecture with unified modeling language(UML-HLA). On the basis of traditional modeling method, an analysis model of multi-train simulation system was constructed from different perspectives by using UML-HLA modeling method. The model consisted of use case modeling, activity modeling, structural modeling, interactive modeling and state-based modeling, and the high level architecture resource library was constructed. Based on the analysis model, a multi-train simulation system structure was established, and a design model of multi-train simulation system was obtained finally. The functions and performances of multi-train simulation system were validated. Simulation result shows that the modeling method based on UML-HLA has strong interactivity and maneuverability. With the optimization of original thread management mechanism and timer control mechanism, the CPU occupancy of original system reduces from 50% to below 15% by using thread management method, the timer error in the system is below 0.02 ms, and the simulation requirement of train control system is satisfied. 1 tab, 10 figs, 16 refs.

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Last Update: 2013-08-30