Industrial Product-Service Systems (IPSS) are increasingly dominant in several sectors. Predominant value-adding services provided for industrial assets such as production systems, electric power plants, and car fleets are remote asset maintenance, monitoring, control, and reconfiguration. IPSS designers lack methods and tools supporting them in systematically deriving technical design requirements for the underlying Cyber-Physical System (CPS) IPSS services. At the same time, the use of Digital Twins (DTs) as digital representations of CPS as-sets is becoming increasingly feasible thanks to powerful, networked information technology (IT) and operation technology (OT) infrastructures and the ubiquity of sensors and data. This paper proposes a method for guiding IPSS designers in the specification and implementation of DT instances to serve as the key enablers of IPSS services. The systematic mapping of the continuous IT design-build-deployment cycle concept to the OT domain of CPS is at the heart of the applied methodology, which is complemented by a stakeholder-driven requirements elicitation. The key contribution is a structured method for deriving technical design requirements for DT instances as IPSS. This method is validated on real-world use cases in an evaluation environment for distributed CPS IPSS.
翻译:工业产品-服务系统(IPSS)在几个部门日益占据主导地位,为生产系统、发电厂和汽车车队等工业资产提供的主要增值服务是远程资产维护、监测、控制和重组;IPSS设计师缺乏方法和工具,支持他们系统地为基本的网络-物理系统(CPS)IPSS服务系统地提出技术设计要求;同时,利用数字双体(DTs)作为CPS设置的数字表示方式,由于强大的网络化信息技术和操作技术基础设施以及传感器和数据的普及性,这种利用越来越可行;本文件提出了指导IPSS设计师说明和实施DT实例的方法,以作为IPSS服务的关键推动者;将信息技术的持续设计-建设-部署周期概念系统绘制到CPS的OT领域,这是应用方法的核心,并辅之以由利益攸关方驱动的要求征求意见。