Research On Key Technologies Of Semi-physical Virtual Simulation Of Fully Mechanized Units

At present,the design of most domestic comprehensive mining simulation consoles is limited to the field of teaching.It is not yet possible to apply effective mathematical models to virtual reality for simulation research.Domestic enterprises are weak in independent product development and innovation.In addition,the real-time status monitoring system has large data errors,unstable operation and other problems that cannot meet the needs of upgrading.Due to the harsh working environment of the three fully mechanized mining machines,which hinders the intelligent development and design of the underground fully mechanized mining system,new research methods are urgently needed to solve these current problems.The comprehensive mining semi-physical simulation system uses Siemens S7-200CPU226 and its Ethernet module,Xsens' MTi-300 inertial navigation system,STM32F103 single-chip microcomputer,etc.as hardware support,and integrates the host computer configuration king and Unity3 D as its main software platform.Finally,the control panel can control the Unity3 D virtual simulation model.And the simulation model realizes the realtime monitoring of the running status of the outside comprehensive mining equipment.Committed to realizing the combination of virtual and real underground three-machine fully mechanized simulation virtual system.First of all,by analyzing the technological process of underground comprehensive mining conditions,it is designed to be a mathematical model of hydraulic support that can be used correctly in engineering.Using this mathematical model,an efficient fully mechanized mining simulation process was completed on the Unity3 D experimental platform.Then,through the design of the centralized console,the control of the virtual hydraulic support in Unity3 D is completed by the centralized console,including receiving the help board,lowering the column,moving the frame,raising the column,extending the help board,etc.It is realized that people control the virtual hydraulic support by manipulating the control panel.Finally,the STM32f103 single-chip microcomputer is programmed,and the MTi-300 strapdown inertial navigation system developed by Xsens is used to realize the real-time monitoring of the status of the external hydraulic support.The performance of the whole system is tested experimentally,which proves the reliability and stability of the system.The main conclusions include:(1)Based on the underground three-machine fully mechanized mining process technology process,an efficient three-machine collaborative mathematical model is designed,which provides a reference for the comprehensive operation of three-machine comprehensive operation and efficient coal mining;(2)This system adopts Unity3 D virtual simulation software to realize the study of comprehensive mining plan on the shaft.It saves the cost of studying the fully mechanized mining process underground;(3)By designing a centralized console,the system uses the Siemens S7-200CPU226 host with strong anti-interference ability and its Ethernet communication function module to realize the centralized console to control the virtual model in Unity3 D.(4)This system uses the STM32F1 series single-chip microcomputer with relatively stable functions as a microprocessor,which greatly improves the stability of the monitoring system.So that it can stably transmit accurate data in a complex environment;The fully-integrated mining monitoring system finally established can enable the operator to intuitively observe the working state of the hydraulic support during operation,and can realize timely adjustment of the state of the hydraulic support during the comprehensive mining process.