基于BIM的列控数据自动集成与可视化动态验证  

BIM-Based Automatic Integration and Visual Dynamic Verification of Train Control Data

作　　者：王宇 李华[1] 李赛飞[1] 牛家祺 吴昊 WANG Yu;LI Hua;LI Saifei;NIU Jiaqi;WU Hao(The School of Information Science and Technology,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学信息科学与技术学院,成都610031

出　　处：《铁道标准设计》2024年第10期184-192,共9页Railway Standard Design

基　　金：四川省重大科技专项(2019ZDZX0007);四川省科技计划项目(2021YFQ0056)。

摘　　要：为探究在列控数据验证领域中存在的工作量大、可视化效果差以及动态验证支持弱等问题的解决方案,提出基于BIM可视化的列控工程数据动态验证方法。该方法首先采用基于数据模型驱动的场景构建方法,在Unity平台实现3D站场的自动集成,生成接近真实的铁路站场;然后,基于铁路相关规范,采用连续碰撞检测技术实现列车运行的动态可视化仿真;最后,基于3D站场和列车仿真运行,完成对列控工程数据的动态验证。对于3D站场集成部分,该方案能够自动且迅速调用铁路基础设备模型,准确完成站场的3D构建,构建的设备包括线路轨道、道岔、信号机等。在列车3D模拟运行中,能够自动完成轨道区段占用检测及相应的信号机点灯、行车许可计算与执行、车地通信读取应答器数据等功能,并且能够根据行车许可,执行超速防护,控制列车在3D场景中仿真运行,模拟出铁路联调联试的场景。在模拟列车运行过程中,若出现失常,则判断该数据设计存在风险,验证结束并给出警告。代入黔常线咸丰站站场及相关区间数据进行实验,结果显示:(1)1LQG长度不符合规定,无法满足列车出站时80 km/h的初速度,建议1LQG长度由305 m增加至满足所有型号列车运行要求的525 m;(2)分相区与邻近信号机距离350 m无法满足CRH-200型列车正常运行通过分相区,数据存在问题,建议修正为524 m以上。该研究成果可为BIM方法在列控工程数据验证中的应用提供参考。To address the issues of high workload,poor visualization,and weak dynamic verification support in train control data verification,this paper proposed a building information modelling(BIM)-based dynamic verification method for train control engineering data.A data model-driven method in scene design was first applied to automatically integrate 3D railway stations on the Unity platform,generating realistic railway station environments.Then,continuous collision detection was employed to visually simulate the dynamic operations of trains based on relevant railway specifications.Finally,dynamic verification of train control engineering data was completed integrating 3D station model and train simulation operations.For 3D station integration,this method could automatically and efficiently retrieve railway infrastructure models,accurately constructing 3D stations,including tracks,turnouts,and signal machines.During the 3D simulation operations,the system could automatically detect track section occupancy,operate signal lights,calculate and execute driving permission,and read balise data via vehicle-ground communication.It also could perform over-speed protection according to the permission,controlling train operations within 3D simulation scenes and replicating scenes of commissioning and integrated testings.If any anomalies occurred during the simulation,the system would flag potential risks in data design,ending validation with a warning.In an experiment using data from the Xianfeng Station and adjacent sections of the Qianjiang-Changde Railway,the results showed that:(1)The length of 1LQG was insufficient to meet the requirement of 80 km/h for initial speed.It was recommended to increase the length from 305 m to 525 m to meet the requirements for all train types.(2)The 350 m distance between the neutral zone and the adjacent signal machine was inadequate for the CRH-200 train passing through the zone.Some data issues occurred,suggesting a need to extend the distance to over 524 m.These findings provide valuable refe

关 键 词：BIM技术 列控数据 数据验证 参数化集成 可视化 行车模拟 动态验证 

分 类 号：U284.36[交通运输工程—交通信息工程及控制]