| In the experimental teaching of chemical engineering and engineering specializing in coal chemical industry,small coke oven coking experiment is a compulsory experimental course for students,but there are many problems in small coke oven coking experiment,such as: expensive equipment,high energy consumption,heavy pollution,The large area and potential safety hazards hinder the effective development of coking teaching experiments.Based on the small coke oven coking experiment of this college,this paper develops a three-dimensional virtual simulation coking laboratory system based on Unity3 D platform through the research of virtual reality technology.The main work is summarized as follows:(1)Through research and analysis of the development requirements of the 3D simulation virtual coking laboratory system,the basic requirements,key technologies and development technical processes of development were clarified,and Unity3 D was used as the virtual simulation platform,3dsMAX was used as the 3D modeling tool,and Photoshop was the texture production tools.(2)Construct a three-dimensional virtual coke oven coking experimental laboratory and a three-dimensional model of the coking experimental equipment and raw materials,and import resources such as three-dimensional models into Unity3 D.Create a highly simulated virtual lab environment by adding materials and colliders to the model and adding light and sky boxes to the environment.(3)Based on the system development requirements,use the animation system in Unity3 D to create device animation,simulate the running process of the device;use the UI system to create the UI interface,realize the login interface,set the temperature program interface and the coal blending interface;use the particle system to make particle effects,realize the simulation of water,flame and smoke;writing code to realize the logic of the whole virtual simulation small coke oven coking system to realize human-computer interaction.(4)The key issues in the development process of virtual simulation experiment system are realized.The high-mode baking low-mode and shader rendering mode solves the problem of not adding system resources to increase the model details;using the shader programming technique to implement chain animation simulation;using the coroutine technology to solve the animation time difference problem.(5)Developed teaching aids,in which the coke quality prediction module is used to help students understand the basic principles of coal blending.The learning system in the teaching module is used to enable students to quickly and efficiently master the use of software;the safety education system enhances students’ Experimental safety awareness;the assessment system tests students’ mastery of small coke oven coking experiments.(6)The function and performance of the system were tested and optimized on the Unity3 D platform,and the virtual simulation coke oven coking system that was run independently from Unity3 D was released,and the development of the 3D virtual simulation coking laboratory system was completed.This paper explores the development route and implementation method of the 3D virtual simulation coking laboratory system.The virtual simulation small coke oven coking system developed is highly simulated.Students can complete the operation of the coking experiment on the computer and being evaluated according to the students’ operation,which provides a new teaching mode for the small coke oven coking experiment,reducing experimental costs,eliminating pollution,reducing safety hazards,increasing student practice opportunities,and improving teaching quality.At the same time,the system adopts module development,which has good maintainability and expandability,and is convenient to add new content and functions,and has greater promotion and application value. |