Abstract: Focusing on the problems of real-time monitoring,poor control ability and opaque management in discrete manufacturing workshop,an object-oriented method was proposed to realize a real-time monitoring method for discrete manufacturing workshops based on Digital Twin (DT).DT-based visual real-time monitoring method architecture for discrete manufacturing workshop was built,and its key implementation process was clarified.Four key technologies to realize real-time monitoring based on DT were described in detail,including data modeling and transmission method based on AutomationML and OPC UA,event-driven virtual and real mapping method,workshop logic modeling method based on complex event processing,information visualization and push.Taking an aerospace product machining workshop as an application case,the effectiveness of the monitoring method was verified by combining the actual production process and the developed prototype system.

Key words: digital twin, discrete manufacturing, real time monitoring, modeling, aerospace products

摘要： 针对离散制造车间实时监控困难、调控能力差、管理不透明等问题,采用面向对象的方法,提出一种基于数字孪生的离散制造车间可视化实时监控方法。首先,搭建了基于数字孪生的离散制造车间可视化实时监控方法体系架构,明确了其关键实现流程;然后,分别围绕4个关键技术:基于AutomationML与OPC UA的数据建模及传输方法、事件驱动的虚实映射方法、基于复杂事件处理的车间逻辑建模方法、信息可视化及推送,详细阐述了该可视化实时监控的实现方法。最后,以某航天产品机加车间为应用案例,结合实际生产过程和开发的原型系统,验证了该监控方法的有效性。

关键词: 数字孪生, 离散制造, 实时监控, 建模, 航天产品