4.5 Article

Wireless Technologies for Industry 4.0 Applications

Journal

ENERGIES
Volume 16, Issue 3, Pages -

Publisher

MDPI
DOI: 10.3390/en16031349

Keywords

industrial Internet of Things (IIoT); wireless control systems; wireless sensor networks (WSNs); Industry 4; 0; cyber-physical systems (CPS)

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Wireless technologies are increasingly used in industrial applications due to their ability to reduce cabling costs and provide flexibility in node layout and device scaling. Despite some drawbacks, they are widely accepted in monitoring and supervision tasks and even in time-critical tasks involving slow dynamic processes. This article aims to guide application designers in selecting the most appropriate technology by discussing relevant wireless technologies and providing examples of their applications.
Wireless technologies are increasingly used in industrial applications. These technologies reduce cabling, which is costly and troublesome, and introduce several benefits for their application in terms of flexibility to modify the layout of the nodes and scaling of the number of connected devices. They may also introduce new functionalities since they ease the connections to mobile devices or parts. Although they have some drawbacks, they are increasingly accepted in industrial applications, especially for monitoring and supervision tasks. Recently, they are starting to be accepted even for time-critical tasks, for example, in closed-loop control systems involving slow dynamic processes. However, wireless technologies have been evolving very quickly during the last few years, since several relevant technologies are available in the market. For this reason, it may become difficult to select the best alternative. This perspective article intends to guide application designers to choose the most appropriate technology in each case. For this purpose, this article discusses the most relevant wireless technologies in the industry and shows different examples of applications.

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