Andre Dionisio Rocha

Dr. Andre Dionisio Rocha

Department of Electrical and Computer Engineering (DEEC), NOVA University of Lisbon / UNINOVA-CTS, 1099-085 Lisbon, Portugal
orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 October 2018 in Computers in Industry
Verified
Journal Article
Closed access
Ricardo Silva PeresRicardo Silva Peres
Ricardo Silva Peres
Andre Dionisio RochaAndre Dionisio Rocha
Andre Dionisio Rocha
Paulo LeitãoPaulo Leitão
Paulo Leitão
Jose BarataJose Barata
Jose Barata

5 December 2022 in Journal of Intelligent Manufacturing
Verified
Journal Article
Open access
PDF file
Luis M. Camarinha-MatosLuis M. Camarinha-Matos
Luis M. Camarinha-Matos
Andre Dionisio RochaAndre Dionisio Rocha
Andre Dionisio Rocha
Maria Paula de Brito GraçaMaria Paula de Brito Graça
Maria Paula de Brito Graça
In recent years, the manufacturing sector is going through a major transformation, as reflected in the concept of Industry 4.0 and digital transformation. The urge for such transformation is intensified when we consider the growing societal demands for sustainability. The notion of sustainable manufacturing has emerged as a result of this trend. Additionally, industries and the whole society face the challenges of an increasing number of disruptive events, either natural or human-caused, that can severely affect the normal operation of systems. Furthermore, the growing interconnectivity between organizations, people, and physical systems, supported by recent developments in information and communication technologies, highlights the important role that collaborative networks can play in the digital transformation processes. As such, this article analyses potential synergies between the areas of sustainable and resilient manufacturing and collaborative networks. The work also discusses how the responsibility for the various facets of sustainability can be distributed among the multiple entities involved in manufacturing. The study is based on a literature survey, complemented with the experience gained from various research projects and related initiatives in the area, and is organized according to various dimensions of Industry 4.0. A brief review of proposed approaches and indicators for measuring sustainability from the networked manufacturing perspective is also included. Finally, a set of key research challenges are identified to complement strategic research agendas in manufacturing.

27 December 2022 in Processes
Verified
Journal Article
Open access
PDF file
BSBruno Silva
Bruno Silva
RMRuben Marques
Ruben Marques
DFDinis Faustino
Dinis Faustino
PIPaulo Ilheu
Paulo Ilheu
TSTiago Santos
Tiago Santos
Andre Dionisio RochaAndre Dionisio Rocha
Andre Dionisio Rocha
With the spread of the Industry 4.0 concept, implementing Artificial Intelligence approaches on the shop floor that allow companies to increase their competitiveness in the market is starting to be prioritized. Due to the complexity of the processes used in the industry, the inclusion of a real-time Quality Prediction methodology avoids a considerable number of costs to companies. This paper exposes the whole process of introducing Artificial Intelligence in plastic injection molding processes in a company in Portugal. All the implementations and methodologies used are presented, from data collection to real-time classification, such as Data Augmentation and Human-in-the-Loop labeling, among others. This approach also allows predicting and alerting with regard to process quality loss. This leads to a reduction in the production of non-compliant parts, which increases productivity and reduces costs and environmental footprint. In order to understand the applicability of this system, it was tested in different injection molding processes (traditional and stretch and blow) and with different materials and products. The results of this document show that, with the approach developed and presented, it was possible to achieve an increase in Overall Equipment Effectiveness (OEE) of up to 12%, a reduction in the process downtime of up to 9% and a significant reduction in the number of non-conforming parts produced. This improvement in key performance indicators proves the potential of this solution.

1 July 2014
Verified
Conference Paper
Closed access
Andre Dionisio RochaAndre Dionisio Rocha
Andre Dionisio Rocha
GOGiovanni Di Orio
Giovanni Di Orio
Jose BarataJose Barata
Jose Barata
NANikolas Antzoulatos
Nikolas Antzoulatos
ECElkin Castro
Elkin Castro
Luis RibeiroLuis Ribeiro
Luis Ribeiro
The new market trends are very different, so it is crucial to the companies improve the tools and capabilities that allow themselves readjust rapidly and effectively to the news market changes and to the new requirements. In order to facilitate this process, it is proposed in this paper an agent based implementation that can provide to the existent systems the capacity to quickly adapt and reconfigure using standard technology. The proposed framework provides an intelligent tool to autonomously help the configuration when a production operator pretends to introduce a new variant of product in runtime and consult important information provided by the system to monitor execution.

5 May 2016 in International Journal of Production Research
Verified
Journal Article
Closed access
NANikolas Antzoulatos
Nikolas Antzoulatos
ECElkin Castro
Elkin Castro
LSLavindra de Silva
Lavindra de Silva
Andre Dionisio RochaAndre Dionisio Rocha
Andre Dionisio Rocha
SRSvetan Ratchev
Svetan Ratchev
Jose BarataJose Barata
Jose Barata
Rapidly changing market requirements and shorter product lifecycles demand assembly systems that are able to cope with frequently changing resources, resource capabilities and product specifications. This paper presents a multi-agent framework that can adapt an assembly system in order to cope with such changes. The focus of this work is on the ability to plug resources (such as PLCs) into and out of the system, and dynamically aggregate resource capabilities to form more complex ones as resources are plugged in. In addition, an implementation of the framework on an industrial assembly system is discussed, and some insights are provided into some of the key features that product specification languages ought to have to be useful in real world assembly systems, and into the added value of using the proposed framework.

2 March 2021 in Applied Sciences
Verified
Journal Article
Open access
PDF file
Duarte AlemãoDuarte Alemão
Duarte Alemão
Andre Dionisio RochaAndre Dionisio Rocha
Andre Dionisio Rocha
Jose BarataJose Barata
Jose Barata
The recent advances in technology and the demand for highly customized products have been forcing manufacturing companies to adapt and develop new solutions in order to become more dynamic and flexible to face the changing markets. Manufacturing scheduling plays a core role in this adaptation since it is crucial to ensure that all operations and processes are running on time in the factory. However, to develop robust scheduling solutions it is necessary to consider different requirements from the shopfloor, but it is not clear which constraints should be analyzed and most research studies end up considering very few of them. In this review article, several papers published in recent years were analyzed to understand how many and which requirements they consider when developing scheduling solutions for manufacturing systems. It is possible to understand that the majority of them are not able to be adapted to real systems since some core constraints are not even considered. Consequently, it is important to consider how manufacturing scheduling solutions can be structured to be adapted effortlessly for different manufacturing scenarios.