| In order to meet the development needs of more and more workshop-level digital twin systems in the future,this paper proposes a development platform for workshop-level digital twin system based on self-built 3D engine,in which the workshop-level digital twin system,3D engine,integrated development environment,and workshop-level data acquisition and transmission system are studied in detail.In addition,a related design is carried out for the generation of digital twin system for a special-purpose coating workshop.The main research work of the paper is as follows:(1)A development platform model based on a self-built 3D engine is proposed.Based on the development principle of domain-driven design,the software architecture of the development platform is designed.Then the key technologies involved in the development platform are briefly explained.(2)A workshop-level digital twin system model that supports 3D visualization and a virtual workshop behavior model based on DEVS are established.The 3D engine architecture is designed,and the design of the 3D scene rapid generator in the 3D engine is implemented.(3)The integrated development environment architecture is designed,and one of its core modules,the Web UI designer,is successfully designed.(4)A workshop-level data acquisition and transmission architecture for a special-purpose coating workshop is designed.Based on this architecture,a wireless communication acquisition system hardware is designed and debugged,and a data acquisition system based on the OPC UA and MQTT protocols is designed.A data transmission system that supports resumable transmission is also designed.(5)Taking a coating workshop as an example,its discrete system model and continuous system model are established.Subsequently,The coating workshop’s digital twin system is quickly generated with the designed development platform,and the deployment and testing are implemented.After testing the content of each part,the designed development platform for workshoplevel digital twin system based on self-built 3D engine realized the expected function,which proves that the solution is correct and feasible,and has certain application value and reference significance. |
