Physical simulation method and system for production line based on digital twinning

Abstract

The invention discloses a physical simulation method and system for a production line based on digital twinning. The physical simulation method comprises the steps: determining a layout strategy of the production line; customizing a digital twinning model of the production equipment based on a pre-constructed universal digital twinning model; performing real-time interaction between the productionequipment and the virtual model; performing testing and joint debugging on configuration of the production line; analyzing test and joint debugging results to obtain defects and simulation of the production line; modifying the virtual dynamic model; repeating the above steps until an optimal result is optimized. The system comprises an analysis module, production equipment, a planning module, a physical simulation module, a simulation classification module, a virtual connection module and a model modification module. On the basis of realizing virtual-real linkage, the physical entity and thevirtual model of the production line are jointly debugged so as to comprehensively consider uncertain factors of equipment, so that the test result better guides the modification of the simulation model, the modification frequency of the model is reduced, and a better design result is obtained on the premise of shortening the design period.

Description

technical field [0001] The invention relates to the technical field of production line design, in particular to a digital twin-based physical simulation method and system for a production line. Background technique [0002] The existing simulation design technology is more focused on the construction of the physical model of the production line equipment, relying on the data in the information space for data processing, simulation analysis and virtual verification, etc., after obtaining the preliminary design plan, it goes through design iterations and Modify the simulation model and finally get the design result. The biggest shortcomings and shortcomings of these technologies are: (1) The simulation design mainly focuses on the construction of geometric and physical dimensional models of production equipment. These models cannot simultaneously reflect the geometric shape of production equipment, production behavior and various physical changes in the production process. , ...

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Problems solved by technology

The biggest shortcomings and shortcomings of these technologies are: (1) The simulation design mainly focuses on the construction of geometric and physical dimensional models of production equipment. These models cannot simultaneously reflect the geometric shape of production equipment, production behavior and various physical changes in the production process. , so the simulation based on these models cannot truly describe the production process, resulting in inaccurate results of the related simulation design, requiring complicated test modifications before the designed production line can be put into use

(2) Some existing production line design and simulation methods collect on-site logistics operation logic, production time and other data to guide the simulation design and verify the results. However, in the actual implementation process, information data and physical data are often separated from each other. As a result, the information data cannot be fully utilized to ensure the authenticity, accuracy and reliability of the simulation model and design results to the greatest extent. (3) The lack of consistency and simultaneity between the information and the physical model makes it impossible to achieve the simulation model and the physical entity of the production line. Joint debugging, which makes it difficult to make appropriate and in-place modifications to the simulation model and corresponding design parameters in combination with the actual production working condition data during the test process, which further leads to the situation of "imitation but not real" and intensifies the repetition of design

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