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- A gantry robot automatic positioning system using computational visionPublication . Beites, Nuno; Dias, Manuel; Gonçalves Cavaco Mendes, Mário José; Carreira, Fernando; Campos, F.; Calado, João Manuel FerreiraWith the new industrial revolution (industry 4.0) under way, there is a need to automate/digitalize even the simplest processes to keep companies competitive, efficient and secure. This work proposes an automatic and robotic positioning system with position control through the image of video cameras. The objective is to propose this type of automatic system to companies aiming to improve robotic systems operations that are often controlled manually and with associated risks. The developed system was tested in simulation (using Matlab) and in an experimental scale prototype.
- Multi-agent Approach to Fault Tolerant Control Systems – A Conceptual Model to the Industrial Internet of ThingsPublication . Mendes, Mário J. G. C.A general concern in industrial world is related to process maintenance, safety and functionality problems in the presence of faults. Most industrial processes are very large, complex and with communication networks. Because of size and complexity, it is very dificult to conceive a diagnostic system and ensure the availability of the entire process. Sometimes, malfunctions or simple performance deterioration of equipments or processes occur, forcing to production interruptions. Thus, it is fundamental in the industrial world of the 21st century - Industry 4.0 - to have Fault Tolerant Control systems that provides faults information to some kind of control reconfiguration system that will try to accommodate the faults, maintaining the process operation with a minimal degradation in the production or allowing a controlled plant shut down. This work presents a conceptual model to be applied in the Industrial Internet of Things world.
- An electro-pneumatic prototype to support the teaching of industry 4.0 conceptsPublication . Francisco, Miguel B. R. M.; Mendes, Mário J. G. C.; Calado, João Manuel FerreiraThe appearance of industry 4.0 and the internet of things allowed to shorten the gap between the consumer and the product industry, with the introduction of new digital processes. With this in mind, a project of an electro-pneumatic laboratory prototype tosupporttheteachingoftheindustry4.0conceptswas proposed.Fortheconstructionofthelaboratorysystem was developed a typical industrial electro-pneumatic process (at scale), for which some support components were constructed using 3D modelling. For the automation part of the this system, the control platform of the programmable logic controller, type of programming language and creation of the code were developed. For the supervision system and remote digital control, the human machine interface is based in web pages using a common web browser, with the possibility of decentralized access in every tablet and smartphone. This prototype was simulated and tested, and it will help in the teaching of the 4.0 industry concepts.