Percorrer por autor "Vieira, Gustavo"
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- Fairness in Designing Decision-Making Processes with Multi-Agent Systems and Human FactorsPublication . Vieira, Gustavo; Zeiner, Herwig; Paletta, Lucas; Fernandes, Rui; Rosse, Higor; Sabiri, Khadija; Paz, Juan F De; Barbosa, JoséThis paper explores the integration of Human Factors (HF) into Multi-Agent Systems (MAS) to enhance fairness in decision-making processes in Industry 5.0 environments. We contribute with a human-centred perspective in the development of MAS by integrating the physiological aspects of workers in the manufacturing industry. This culminates in the measurement of human resilience. This paper presents an automotive manufacturing environment where wearable sensors and AI-driven analytics assess workers' physiological and psychological stress levels to calculate a human resilience score. This score, along with worker preferences, supports a dynamic worker allocation algorithm based on MAS that adapts to production demands. Our approach embodies the Industry 5.0 vision of technologies that support adaptive, transparent and, above all, fair human management. The system uses advanced technologies to meet business goals and employee needs and to promote a more inclusive, supportive and people-centred work environment.
- Low-cost Industrial controller based on the Raspberry Pi platformPublication . Vieira, Gustavo; Leitão, Paulo; Barbosa, José; Graça, Ulisses daThe low-cost automation field exhibits the need of innovation both in terms of hardware and software. There is a lack of devices that allow the development of control logic that is free from restrictions of domain-specific communication platforms and at the same time able to provide the capabilities aligned to the Industry 4.0 requirements. The objective of this work is to develop an inexpensive, small Industrial Controller that supports the execution of programs in different industrial programming languages. So, it is intended to develop, manufacture and control a low-cost but powerful Industrial Controller based on the use of the single-board computer Raspberry Pi. The study described in this document was carried out on the creation of a hardware platform that is capable of integrating with software frameworks compatible with standards updated and widely used in the industrial automation field. IEC 61131-3 is employed displaying the ease of use and implementation alongside multiple well established programming languages for automation through the OpenPLC platform while IEC 61449 is employed through the 4DIAC framework that has a clear and objective environment capable of providing the appropriate tools for implementation of a distributed control. It is employed the single-board computer Raspberry Pi, a robust device with adequate processing power and communication capability for the elaboration of a platform in the low-cost automation scope. The elaboration of the Industrial Shields, responsible for providing the controller I/O interface took into consideration maintenance concerns of controller integrity through the application of galvanic isolation in the automaton input and output sections. The proposed platform was successfully tested in an automation system prototype comprising Fischertechnik’s Punching Machine being possible to develop the control logic using IEC 61131-3 and IEC 61499.
- Low-cost industrial controller based on the raspberry Pi platformPublication . Sakurada, Lucas; Vieira, Gustavo; Barbosa, José; Leitão, PauloProgrammable Logic Controllers (PLCs) still are the state-of-the-art regarding the industrial automation control, but the Industry 4.0 advent is imposing new requirements, e.g., related to the capability to acquire and process data on realtime at the edge computational layer. On the other hand, the current availability of cheaper and more powerful processors opens new windows to develop low-cost and more advanced industrial controllers aligned with the Industry 4.0 principles. In this context, an important challenge is to improve the current state-of-the-art PLCs by taking into consideration the low-cost but powerful computational boards that will allow to embed IoT technologies and data analytics. This work describes the development of a low-cost but powerful industrial controller based on the use of the single-board computer Raspberry Pi, which allows executing logic control programs codified in IEC 61131–3, IEC 61499, or even in Java or Python, while maintaining the industrial requirements. The proposed platform was experimentally used to control an automation process based on a Fischertechniks platform.