论文标题
基于语义过程描述访问和解释OPC UA事件迹线
Accessing and Interpreting OPC UA Event Traces based on Semantic Process Descriptions
论文作者
论文摘要
来自生产系统的事件数据的分析是与行业4.0相关的许多应用程序的基础。但是，在该域中常见异质性和不相交数据。结果，事件的上下文信息可能是不完整或不正确的解释，从而导致次优分析结果。本文提出了一种基于事件数据的上下文（例如产品类型，过程类型或过程参数）访问生产系统事件数据的方法。该方法通过组合从数据库系统中提取过滤事件日志：1）生产系统层次结构的语义模型，2）正式的过程描述和3）OPC UA信息模型。作为概念证明，我们使用基于OPC UA的机械伴侣规范的示例服务器演示了我们的方法。
The analysis of event data from production systems is the basis for many applications associated with Industry 4.0. However, heterogeneous and disjoint data is common in this domain. As a consequence, contextual information of an event might be incomplete or improperly interpreted which results in suboptimal analysis results. This paper proposes an approach to access a production systems' event data based on the event data's context (such as the product type, process type or process parameters). The approach extracts filtered event logs from a database system by combining: 1) a semantic model of a production system's hierarchical structure, 2) a formalized process description and 3) an OPC UA information model. As a proof of concept we demonstrate our approach using a sample server based on OPC UA for Machinery Companion Specifications.
