Rail transmit vehicle overhauling simulation training system based on virtual scene

Abstract

The invention relates to a rail transit vehicle overhauling simulation training system based on a virtual scene, for which a vehicle body overhauling module, a bogie overhauling model and the like arearranged according to training content. A VR immersion type virtual reality simulation technology and a 3DMax model manufacturing tool are adopted for modeling according to a next-gen standard, and constructing a real overhauling workshop based on a three-dimensional engine. A vehicle model of each module for vehicle body overhauling is built based on a model material rendering algorithm as follows: a JanVR virtual simulation engine, and a dynamic ray algorithm and a real-time shadow advanced rendering technology are adopted, a sky box algorithm is used for simulating day-night alternating transformation, and a particle control algorithm and a volume fog are used for simulating weather change, thereby increasing scene expressiveness. The bottom layer of the engine adopts OpenAL technologyto simulate three-dimensional sound, and Doppler algorithm to simulate gradual change effect of the sound. In the aspect of physical simulation, a Bullet physical engine is adopted to simulate a physical world. By compiling a simulation logic through a script editor, a change in a scene model and environment is controlled, and various interaction and dynamic effects are realized.

Description

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AI Technical Summary

Benefits of technology

The technical effects of this patent text are as follows: 1) The system has a learning mode that automatically loads task scripts and executes tasks automatically, allowing for pause and resume functionality for teacher teaching. 2) The system builds a realistic virtual maintenance workshop using 3D modeling technology, with realistic vehicle models and various tools. The system also includes a resource library that improves system performance by switching between refined and simple models based on demand. 3) The system improves development and operation efficiency by developing an underlying engine module and modifying rendering and calculation algorithms. It also uses logical division and rendering techniques to reduce the number of model rendering surfaces. 4) The system uses a self-developed plug-in and engine editor to model and export scenes. It also uses a script editor to control scene and environment changes, and the script language allows for efficient development of simulation logic. 5) The system incorporates network and database technology to manage training personnel and tasks. It uses a teaching assistant module to send tasks to the 3D simulation system and control scene rendering. It also uses a model rendering control module to dynamically change parameters for a balanced experience and performance. 6) The system includes an intelligent evaluation module that uses algorithms and big data analysis to calculate training results and provide statistical analysis. It records trainees' operations in real time and compares them with standard answers for scoring. It also provides performance statistics for scientific instruction and training.

Problems solved by technology

This patented describes how computer simulations can be applied to train operators who are working with vehicles during their lifespan or failure modes. However, due to factors such as complexity and security concerns, there may still exist some limitations when applying these techniques over larger spaces like railway transportation systems. Previous methods were developed without fully considering this issue but they resulted in poorly optimized solutions that did little impact upon actual practical experiences.

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