Design Of Remote Operation And Maintenance System Of Electromagnetic Stirring Equipment Based On Digital Twin Technology

The system operation and maintenance of large industrial devices(such as electromagnetic stirring equipment)are important factors to ensure the company's safety,stability and high-quality production.Traditional system operation and maintenance means rely heavily on technical personnel,have high time cost and low operation and maintenance efficiency,which is not contribute to stable and efficient production.The application of remote operation and maintenance technology will solve the above-mentioned troubles to a certain level.As a new technology,digital twin provides new ideas and methods for big machines' long-distance operation and maintenance.Aiming at the system operation and maintenance of electromagnetic stirring equipment,this paper organically combines the digital twin technology with the remote operation and maintenance technology,and designs the remote operation and maintenance system of electromagnetic stirring equipment based on the digital twin technology.Firstly,a system design was carried out for the remote operation and maintenance system of electromagnetic stirring.Based on the exploration of the needs of remote operation and maintenance system of electromagnetic stirring equipment,the structural composition of the remote operation and maintenance system of electromagnetic stirring equipment was determined.The feature block of the remote operation and maintenance system of electromagnetic stirring equipment is designed.In the light of the features and composition of the remote operation and maintenance system of the electromagnetic stirring equipment,the three-layer architecture(physical layer,edge layer and service layer)of the system is devised,and the principles of the system are determined.Secondly,a virtual model of electromagnetic stirring equipment is constructed based on digital twin technology.The virtual model of electromagnetic stirring equipment includes two parts: the simulation model of electromagnetic stirring equipment and the three-dimensional visualization model.The simulation model of electromagnetic stirring equipment was built by Matlab/Simulink,and the simulation of the operation process of electromagnetic stirring equipment in the remote operation and maintenance end was completed.3ds Max software was used to create a three-dimensional model of the electromagnetic stirring equipment,and the mapping of the geometric shape of the electromagnetic stirring equipment in the remote operation and maintenance end was completed.Thirdly,data transmission between electromagnetic stirring equipment and its remote operation and maintenance terminal is realized based on OPC technology.The C# programming language was used to build a remote communication platform at the operation and maintenance end,and the data connection of the electromagnetic stirring equipment was established.On the basis of completing the communication configuration,the remote data transmission test was carried out,and the real-time data transmission and monitoring of frequency,current,water temperature and water flow of the electromagnetic stirring equipment were realized.By comparing the real-time data displayed by Win CC,the reliability of the remote communication platform is verified.Finally,the fault prediction model of electromagnetic stirring equipment was established based on LVQ neural network.Collection of electromagnetic stirring equipment current,frequency,water flow,water temperature and other historical operation data,the establishment of data set.Historical data is separated into training set and test set.Using the training data to train LVQ neural network model,and the training performance curve of LVQ neural network model was obtained.Using the test data set to test LVQ neural network model,and the accurateness of model was verified.