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16th International-Federation-of-Automatic-control (IFAC) Conference on Programmable Devices and Embedded systems PDES

作者： Stohl, Radek Sediva, Sona Brno Univ Technol Fac Elect Engn & Commun Brno Czech Republic

The aim of this paper is to set up a hierarchical industrial communication model via the Common Industrial Protocol for the purposes of practical laboratory instruction. The designed solution is applied to the distillation process. After introducing batch control (ISA-88) and the ISA-95 standard, the authors describe the communication model and relevant development systems. The validation and verification of the proposed and implemented distillation column model is demonstrated by using a sample experiment. (C) 2019, IFAC (International Federation of Automatic control) Hosting by Elsevier Ltd. All rights reserved.

关键词： communication for control systems PLC CIP Ethernet/IP

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Low-cost solution of LED driving, designed for tunable white lighting systems

Low-cost solution of LED driving, designed for tunable white...

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15th IFAC/IEEE Conference on Programmable Devices and Embedded systems (PDeS)

作者： Hrbac, Roman Kolar, Vaclav Novak, Tomas Prokop, Lukas Vanus, Jan VSB TU Ostrava 17 Listopadu 15 Ostrava Czech Republic

Aiming at increased lighting comfort, new types of light fixtures may currently be seen that may not only be dimmed, but can also adjust the temperature of the light. The ability to adjust the brightness and color temperature is not only supposed to create a pleasant atmosphere, but it may also have a positive effect on human organism, especially if luminaries can be controlled to get as close as possible to the dynamics of natural light. The change in color temperature is known to affect the production of the melatonin hormone in the human body. This capacity is especially useful in situations where we need to increase the alertness of people working at night and thus increase their performance when carrying out certain tasks. This paper deals with the design of a low-cost solution for the power supply units of LED light fittings able to adjust the brightness and temperature of light aiming to achieve the best electrical parameters. While working on the design, the possibility of adding other electronic components to the power supply was considered, which would further increase its usefulness in the future. Experimental results of the power supply efficiency measurements for different control frequencies are presented. (C) 2018, IFAC (International Federation of Automatic control) Hosting by Elsevier Ltd. All rights reserved.

关键词： Embedded systems Microprocessors and Microcontrollers Building and home automation communication for control systems

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Using a Hierarchical Industrial communication Model via the Common Industrial Protocol in a Small Distillation Column

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IFAC-PapersOnLine 2019年第27期52卷 484-489页

作者： Radek Štohl Soňa Šedivá Faculty of Electrical Engineering and Communication Brno University of Technology Brno

关键词： communication for control systems PLC CIP Ethernet/IP

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