Design Of Training System For Virtual Fully Mechanized Coal Face Inspection Based On HTC Vive

The inspection of fully mechanized working face is a crucial part of the safety production of coal mines.It can take "prevention first" as the primary task,and substantially reduce the occurrence rate of coal mine accidents.By training the technicians in the fully mechanized mining face on the relevant inspection work,their safety awareness can be enhanced and accidents caused by human error can be avoided.In order to solve the problems of traditional training methods such as disconnection between theory and practice,dullness and poor teaching effect,this paper based on virtual reality technology and human-computer interaction technology,builds a virtual comprehensive mining face inspection training system based on HTC Vive,The system achieves a training mode that integrates equipment understanding,inspection drills,accident simulation,and examination and evaluation,it can improve the training effect.The main research contents and results of this paper are as follows:(1)The overall design scheme of the virtual fully mechanized mining face inspection training system was proposed.The system requirements were analyzed,and the system functions were initially designed from three aspects: system application scenarios,student conditions and functional requirements;an in-depth analysis of the system functions was carried out,and the system sections were divided based on this;the system implementation process was designed to provide System construction to clarify ideas.(2)A virtual inspection training system for fully mechanized mining face with four major sections of "cognition-training-simulation-test" was constructed.Based on UG and Rhino 3D modeling software,the model construction of fully mechanized mining equipment and scenes was completed,and a virtual simulation system based on Unity 3D was established;the Visual Studio programming software was used to realize equipment cognition,inspection training,accident simulation and knowledge.The function of the subsystem was evaluated,and the above functional modules were systematically integrated.(3)The interface design principles and interaction methods based on HTC Vive devices were studied.Using Unity 3D as the VR interface to build a platform,by studying the HTC Vive equipment and Unity 3D docking technology,using the handle interaction technology to realize the interaction between the students and the virtual scene,and based on HTC Vive equipment,the established virtual fully mechanized mining face inspection training system was optimized.(4)An optimal system version decision method based on AHP was proposed.The analytic hierarchy process was used to construct a judgment matrix with "target layer-index layer-plan layer",and the weight value of the judgment matrix was calculated through the immersion,interesting and interactive indicators,and comparing and analyzing the inspection training system of virtual fully mechanized mining face before and after optimization,the optimal results were obtained.(5)A system usability assessment method based on SUS usability scale was proposed.Taking the trainees of a mine fully mechanized mining equipment intelligent technology training course as the research object,through the user observation method and the SUS usability scale to conduct experimental analysis on the test trainees,it was concluded that the inspection training system was usable and easy to learn,and the training effect was good.The virtual inspection training system for fully mechanized mining face established in this paper was a multi-platform,multi-functional and highly practical system,which can not only meet the training requirements for special types of work,but also be suitable for coal mine employees to learn the basic knowledge of fully mechanized mining face.