ABSTRACT

In modern cyber-physical systems, there is a high degree of connectivity that is imperative to satisfy the Four Industrial Revolution paradigm (Industry 4.0). While creating new systems according to the Industry 4.0, there are several protocols and solutions that can be applied. However, the introduction of Industry 4.0 to the existing industrial systems is not so straightforward. One point of consideration is the necessity of system modification, and another is the potential security threats a system could face. A solution presented in this paper addressing these issues is a FPGA-based network analyser with network datagram filtering and process data extraction. The analyser is transparent and may be applied without alterations to the monitored system. Moreover, there is no risk of influencing the system operation either by the data extraction device itself or by unauthorised access from the Internet, because the FPGA is a passive device operating as a data diode. The presented solution allows for the integration of existing Ethernet-based systems with cloud services for further processing of the data obtained from the monitored system. The FPGA makes process data available for the enterprise information systems.

摘要

在现代网络物理系统中，必须有高度的连接性才能满足四大工业革命范式（工业 4.0）。在根据工业 4.0 创建新系统时，可以应用多种协议和解决方案。然而，将工业 4.0 引入现有的工业系统并不是那么简单。一个考虑点是系统修改的必要性，另一个是系统可能面临的潜在安全威胁。本文提出的解决这些问题的解决方案是基于 FPGA 的网络分析仪，具有网络数据报过滤和过程数据提取功能。分析仪是透明的，可以在不改变被监控系统的情况下应用。而且，由于 FPGA 是作为数据二极管运行的无源器件，因此数据提取设备本身或来自 Internet 的未授权访问都不会影响系统运行。提出的解决方案允许将现有的基于以太网的系统与云服务集成，以进一步处理从受监控系统获得的数据。FPGA 使过程数据可用于企业信息系统。