Ústav teoretické a experimentální elektrotechniky

Browse

Recent Submissions

Now showing 1 - 5 of 58
  • Thumbnail Image
    Item
    Industry 4.0 demonstrator: COMBED
    (ELSEVIER, 2024-08-14) Braun, Vlastimil; Zezulka, František; Marcoň, Petr; Jirsa, Jan; Fiedler, Petr; Kaczmarczyk, Václav; Arm, Jakub; Bradáč, Zdeněk; Dohnal, Přemysl
    The paper discusses the manufacturing procedures and modes that will be employed in smart factories in the course of the next stage of technology development within the 4th Industrial Revolution. The manufacturing modes integrate the principles of Industry 4.0 (I4.0), presented through specifications by German, French, and Italian standardization committees. At present, the individual aspects of the entire system, which comprises technological means, functions, services, management structures, and requirements on manufacturing components and products in factories of the future, are being standardized. In our research, this 14.0 -based mode of production is demonstrated on a virtual testbed. Compared to the costly physical testbeds, whose application is limited physically as well as in terms of funding and time, the virtual approach allows showing the 14.0 manufacturing principles effectively and cheaply. For this purpose, we employ two versions of the COMBED, a virtual testbed; in this context, the principles are exposed as facilitating consistent production management decentralization via standardized Asset Administration Shell (AAS) digital twins in both the individual manufacturing components and the actual product. The paper is complemented with viderecordings that expose the model functions of a smart factory producing simple plastic models of various cars by using robots, automated machines and stores, 3D printers, and other manufacturing components equipped with standardized digital twins (AASs). Copyright (c) 2024 The Authors.
  • Thumbnail Image
    Item
    Use of Multi-Agent System for Industrial Production Control
    (Elsevier, 2024-08-14) Jirsa, Jan; Zezulka, František; Marcoň, Petr; Pečinka, Tomáš; Nováček, Ladislav; Kaczmarczyk, Václav; Arm, Jakub
    This paper describes specific implementation of Asset Administration Shell technology used for an industrial distributed control system. The base of this control system is a multiagent system of digital twins which was created by AAS. This multiagent system was developed for a specific platform CP Factory (mainly based on Simatic PLC) but the implementation is y portable to each common platform. Digital twin of several types of components of typical industrial production process are described in this paper with the implementation of active and passive administration shell. The main focus is on describing the way of integrating digital twins into the production system and the necessary SW tools. Industry 4.0 language was used as a common communication protocol as well as OPC UA and MQTT.
  • Thumbnail Image
    Item
    Using Visual Odometry to Determine the Position of a UAV
    (Elsevier, 2024-08-30) Pintér, Marco; Janoušek, Jiří; Klouda, Jan; Marcoň, Petr
    We discuss the main concepts and problems related to navigating an unmanned aerial vehicle (UAV) in a three-dimensional space via visual odometry. In the nearest future, GMSS-free UAV navigation will embody a critical part of autonomous navigation systems, with information from on-board cameras enabling the user to estimate the UAV's movement and position. In the given context, this paper presents different types of visual odometry, sensors for visual odometry, implementation components, and application scenarios. To allow the development and innovations, we utilize the widely used Robotic Operating System (ROS).
  • Thumbnail Image
    Item
    Analysis of requirements for teaching Industry 4.0 topics at universities
    (ELSEVIER, 2024-08-30) Kaczmarczyk, Václav; Baštán, Ondřej; Marcoň, Petr; Jirsa, Jan; Arm, Jakub; Bradáč, Zdeněk; Kaczmarczyková, Zuzana
    In order to fulfill the philosophy of Industry 4.0, it is necessary to introduce a large number of new topics in schools, which are difficult for students to grasp. The basic problem in teaching is the requirement of interdisciplinarity, where a student of electrical engineering automation must get an overview of mechanical and computer science topics. The skills can be divided into technical - engineering and business-management skills. In addition to hard skills, the need to introduce soft skills into the curriculum cannot be overlooked. The article summarises the necessary competences and gives a brief overview of what is taught in the field of Industry 4.0 at our workplace, together with a short comparison of other institutions.
  • Thumbnail Image
    Item
    Asset Administration Shell as the Key Enabler of the Industry 4.0 Phenomenon
    (Elsevier, 2024-08-30) Arm, Jakub; Kaczmarczyk, Václav; Benešl, Tomáš; Marcoň, Petr; Jirgl, Miroslav; Bradáč, Zdeněk
    With the advent of the Industry 4.0 concept, the digitization of industrial production enterprises and the development of technologies that enabled the transformation of production into a so-called smart factory accelerated. One of the core components of this modern factory is the I4.0 component consisting of a resource and its virtual envelope (AAS). It is the virtual envelope that forms the complex digital twin of the resource and enables interaction with the environment. The AAS standard is gradually being formed, while there are already parts enabling the design and implementation of the so-called passive part of AAS. Using the theory, the original idea is transformed into a semi-formal description, which can already be implemented in various applications. Other technologies such as OPC UA, REST API, TSN are connected with AAS and its deployment, which ensure communication and the implementation itself. This paper discusses various aspects that are related to the role, design and implementation of AAS in various applications.