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1.1 Introduction

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The concept behind the Internet of Things (IoT) is to connect several devices, through the internet which can exchange information with each other. Considering that this technology can be applied to industry, it makes this connection between these different devices generates Industry 4.0, which is reputable as the Fourth Industrial Revolution, being the new trend that is being adopted by large corporations to get ahead in the market, characterized by the introduction of information technology in the industry [1].

IoT in Industry 4.0 is basically responsible for the integration of all devices inside and outside the plant, considering that the concept represents the connection as it is a network of physical devices (objects), systems, platforms, and applications with embedded technology to communicate, feel or interact with indoor and outdoor environments [1, 2].

Industry 4.0 is the complete transformation of the entire scope of industrial production through the fusion of internet and digital technology with traditional industry, being motivated by three major changes in the productive industrial world related to the immense amount of digitized information, exponential advancement of computer capacity, and innovation strategies (people, research, and technology) [2, 3].

When it is said that the internet is in the industry, these changes allow everything inside and around an operational plant (suppliers, distributors, plants, and even the final product) to be digitally related and connected, affording a highly incorporated value chain, from the factory floor, is important to relate this to an environment where all equipment and machines are connected in networks and uniquely providing information [3, 4].

For Industry 4.0 to become feasible, it requires the adoption of a technological infrastructure made up of physical and virtual systems, aiming to create a favorable environment for new technologies to be disseminated and incorporated by the industry, with the support of Big Data Analytics technology (Figure 1.1), automated robots, simulations, advanced manufacturing, augmented reality, and the IoT, employing the monitoring of technological trends, assisting managers throughout the entire industrial chain [3, 5].

The Industrial Internet of Things has an IoT and IIoT layer in the industry, provoking a prognostic model, since automation, which in general already exists, answers questions regarding what is happening, what happened, and why it happened, considering its network of physical devices (objects and things, among others), systems, platforms, systems, and applications with embedded technology in industry sectors, aiming to promote automation of manufacturing and, thus, increase the productivity of production lines, generating greater competitiveness with the international industry through intelligent factories (smart manufacturing) [6].


Figure 1.1 Big data analytics illustration.

Generating an increasing number of connected devices (in some situations, it even include unfinished products), since the digitization of data from machines, methods, processes, procedures, and intelligent devices, integrates and complements the operational layer of an industrial plant, enabling communication and systems integration and controls and allowing responses and decision-making in real time. Thus, IIoT becomes a prerequisite for Industry 4.0 [1, 7].

The difference between IoT and IIoT is in the sense that the first relates systems that connect things, complement information, normally only produce data, and can be used in any sector of the industry, transforming the second, to manage assets and analyze maintenance trends [8–10].

IIoT forms a critical layer of the production process and can directly connect a product supplier in real time on the production line, which analyzes the quality and use of your product, as well as connecting the input and output logistics chain of materials and control production, in real time, at the optimum point of operation, becoming an application of production and consumption of data, with a critical profile [8–10].

The use of IoT and IIoT proposes the digital factory bringing benefits to productive plants as an improvement in the use of the asset, reduction of operations or asset cycle cost, improved production, reduction of operations or stoppages, improving asset use (performance), increased speed in decision-making, allow the sale or purchase of products as a service, generate opportunity for new business, among several others. Thus, the premise of digitizing all information can lead to a question about the reason and reason for digitizing so much data, since this information is all digitized and there are all the means (networks) for them to travel and exchange information with each other, it is expected that decisions can be made not only between operators and machines, but also between machine and machine, this is called M2M, Machine to Machine, which before were not available in real time and are now needed [8–11].

Thus, the architectures of industrial automation systems, which have adherence to Industry 4.0, manage to integrate different devices in favor of industrial evolution, with more and more sensors, cameras, and systems that will be monitoring the entire industrial production process, evaluating and supervising the performance of equipment, and providing, in addition to the already known layers of operational control and the entire control framework, the IoT and IIoT layer, where it will converge all this data into a Big Data, delivering operational control possibilities (Figure 1.2), with decision-making in prognoses and with the possibility of autonomous actions [10–12].

Optimizing the production process of the industry is the main reason for the application of IoT in the production line of the factories, since the IoT technology and its IIoT aspect allows the equipment that makes up the industrial yard of a company today that can be connected in a network. With the data collected and stored in the cloud, it allows the decision-makers of the companies to have quick and easy access to all the information of the company and its collaborators; in other words, this makes all the industrial machinery work automatically through of highly programmable intelligent sensors [13, 14].


Figure 1.2 Big data illustration.

Wherefore, this chapter is motivated and has the purpose to originate an updated overview of IoT and IIoT, addressing its evolution and branch of application potential in the industry, approaching its relationship with current technologies and synthesizing the potential of technology with a concise bibliographic background.

Industrial Internet of Things (IIoT)

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