Production line digital twinning system

Abstract

The invention discloses a production line digital twinning system, and the system builds a digital twinning production line through instantiation of an industrial information model module, and writesa communication and motion control program based on a Unity 3D physical engine to build a production line twinning system man-machine interaction module. The data acquisition module acquires and analyzes the actual state data of the production line in real time, compiles a communication program based on an MQTT protocol to realize data synchronization between the twin system and the physical production line, manages the state data of the production line and forwards the state data to the production line performance evaluation module; the production line performance evaluation module calculatesperformance indexes of the production line in real time by analyzing the production line operation data; and the production line control service module is used for controlling workshop production line equipment by issuing a numerical control instruction to the equipment in the system. According to the invention, the simulation process of the production line manufacturing execution process is simplified, the design efficiency of the production line simulation system is improved, and the workshop production integrated management level is improved.

Description

technical field [0001] The invention relates to the technical field of intelligent manufacturing, in particular to a digital twin system of a production line. Background technique [0002] Digital twin is to digitally create a virtual model of a physical entity, use data to simulate the behavior of the physical entity in the real environment, and add or expand new capabilities for the physical entity through means such as virtual-real interactive feedback, data fusion analysis, and decision-making iterative optimization. For the field of manufacturing, digital twin can also be defined as "a digital description of manufacturing elements such as people, products, equipment, and processes, and is updated synchronously with changes in object display status, working conditions, product geometry, and resource status." Dynamic model", this digital description provides the dynamic characteristics of the operation of elements and physical world "things", and exists in the whole life ...

AI Technical Summary

Problems solved by technology

[0003] The simulation of the manufacturing execution process of the workshop production line is a complicated process. At present, some 3D simulation software can be used to perform virtual simulation of the layout of the production line, the manufacturing process path, and the logistics plan. However, this virtual simulation is based on the theory in the design process. Data, lack of effective use of actual data, the obtained simulation results also have certain deviations from the actual

For the monitoring of the production process of the production line, at present, through the installation of surveillance cameras, video recording and storage of the production screen of the production line can realize real-time monitoring of the production process of the production line. The technical difficulty of installation and deployment is relatively low, but the cost is high and the storage capacity Large volume, high management difficulty, high maintenance cost

Images