The Research And Development Of The 3D Training System Of High-speed Railway Traction Network Feeder Protection

As an important guarantee for the safe and stable operation of high-speed railway traction network,feeder protection is an important content of knowledge training and learning of traction power supply system.Owing to the high pressure and high risk working environment of the traction substation,the study and training of students and substation staff are severely restricted.The traditional way is mostly confined to video and book materials,even if there is a visiting learning opportunity,it can not be studied deeply.This kind of training makes the theory and the reality disjointed,which leads to the original complicated and abstract feeder protection knowledge is more difficult to understand.In order to improve this problem,a new training system for feeder protection is designed.This training system is divided into four main functions,including theoretical learning function,plug-in demonstration function,equipment cognitive function,and performance assessment function.Aiming at the specific function,the concrete realization method of the system function is analyzed.According to the hierarchical design thought,system can be divided into data layer,system layer and interaction of three level hierarchical design,each level according to different function is divided into several modules,each module function and mutual cooperation to achieve system function together.3ds Max 3D modeling software is used to create 3D model and principle animation of protective equipment.In the design of the model,the model is designed differently,and the real sense and smoothness of the system are taken into account.These models and animations will be invoked in Unity to provide data support for the virtual representation of the real work scenario.With the help of the 3D development engine Unity,it integrates various resources and builds a feeder protection 3D training system to realize the development of system functions.On the Unity platform,interactive interface design is developed using NGUI plug-ins and databases.In the theoretical learning mode,the corresponding script calls the underlying resources of the database and presents the feeder protection theory to the students.In the plug-in demonstration mode,students can view the structure of the feeder protection device in all directions,and click the specified position to explain the device's function.Under the device cognition mode,students can view and learn relevant equipment freely in the virtual 3D scene to realize the function of scene roaming.System also provides several traction network common faults of animation,fault animation can click on the designated button to play in the scene roaming,which can deepen students understanding of the working principle of the feeder protection device.In the assessment mode,the system randomly selects a certain number of topics,and the students complete the questions and submit the answers within the specified time.This training system to the introduction of the 3D technology feeder protection training areas,improve the deficiency of the traditional training methods,provides a novel,intuitive and efficient method of study,has certain innovative and practical significance.