| Under the guidance of Industry 4.0,all countries are committed to building smart factories,and the manufacturing and various production fields have also been rapidly developed to improve the manufacturing efficiency.As one of China's top 2025 development fields,CNC machine tools are also widely adopting intelligent management methods to create a 3D visualization digital workshop for CPMS to monitor and manage.In the process of realizing the digital workshop simulation system,due to the complex scene,there are problems such as stalling,inability to run smoothly,and poor user experience during loading.Studying the relevant key technologies of the simulation system and starting from two aspects to optimize the system performance.On the one hand,by studying the memory management mechanism of Unity3 D and using the quad-tree algorithm to layer and block the scene to refine it,according to the position of the model and the location of the camera,the new model is loaded and the camera is unloaded and unloaded out of the memory to achieve dynamic scheduling of model resources.On the other hand,for frequent access to the database,a large number of I/O operations affect the system response time.The Redis in-memory database is used as the system's cache layer to implement data caching services and speed up access efficiency.Using the dynamic resource scheduling algorithm to effectively control the amount of data loaded in the memory at a certain moment,effectively reducing the total amount of IO,avoiding the memory bump caused by roaming,and making the system run more smoothly.At the same time,the Redis cache service has a better optimization effect on the system when it frequently requests state data.Through the comparison of the performance of the original system and the improved system,the feasibility of the optimization technology is verified,and the real-time and authenticity of the system can be greatly improved. |
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