铁路货车事故虚拟演练系统的设计与实现

Multi terminal virtual exercise system for railway freight car accidents

为了提高铁路货运行业从业和参与人员的安全意识,降低铁路安全演练成本,设计实现一套多终端铁路货车事故虚拟演练系统。系统采用模块化设计,主要由3部分组成,包括知识学习模块、事故模拟模块和考试系统模块。系统采用多终端设计模式,提供虚拟现实(VR)端、桌面端、移动端和移动VR端供用户使用,各个终端在交互方式、学习便利性等方面可优势互补,为用户提供一套沉浸感强、高参与感和体验友好的演练系统。为了增加培训人员的学习效率和使用意愿,提出了一种新的腿部绑定位置跟踪器实现演练人员在场景中自然行走和大范围移动的人机交互方案,该方法通过腿部绑定位置追踪器将人物在真实空间中的原地踏步运动转换为在虚拟空间中的位置移动。同时提出一种事件自动触发的智能弹窗设计,达到了演练人员在虚拟环境中更加智能地引导学习的效果。系统的实现将为铁路货车工作人员的培训提供一种全新的方式。

In order to improve the safety awareness of the employees and participants in the railway freight industry and reduce the cost of railway safety exercise,this paper designed and implemented a multi terminal virtual exercise system for railway freight car accidents.The system adopted modular design,which mainly consisted of three parts,including knowledge learning module,accident simulation module and examination system module.The system also adopted multi terminal design mode,providing VR (virtual reality) terminal,desktop terminal,mobile terminal and mobile VR terminal for users to use.Each terminal could complement each other in the aspects of interaction mode,learning convenience,etc.,which provided users with a set of exercise system with strong immersion,high participation and good experience.In order to increase the learning efficiency and the use intention of the trainers,the paper proposed a new human-computer interaction scheme to implement the natural walking and large-scale movement of the trainers in the scene by using the leg binding position tracker.This method transformed the in-situ step movement of the characters in the real space into the position movement in the virtual space by using the leg binding position tracker.At the same time,the paper proposed an intelligent pop-up window design of event auto triggering,which achieved the more intelligent guiding learning effect of the trainers in the virtual environment.The implementation of the system can provide a new way for the training of railway freight wagon staff.