19 documents found, page 1 of 2
Advanced sensor-based maintenance in real-world exemplary cases
Albano, Michele; Lino Ferreira, Luis; Orio, Giovanni Di; Maló, Pedro; Webers, Godfried; Jantunen, Erkki; Gabilondo, Iosu; Viguera, Mikel; Papa, GregorCollecting complex information on the status of machinery is the enabler for advanced maintenance activities, and one of the main players in this process is the sensor. This paper describes modern maintenance strategies that lead to Condition-Based Maintenance. This paper discusses the sensors that can be used to support maintenance, as of different categories, spanning from common off-the-shelf sensors, to spe...
Improving and modeling the performance of a Publish-Subscribe message broker
Rocha, Rafael; Maia, Cláudio; Lino Ferreira, Luis; Varga, PalThe Event Handler – a publish-subscribe broker implemented over REST/HTTP(S) – is an auxiliary system of the Arrowhead framework for IoT applications. During this work we found that the existing implementation of the Event Handler suffers from serious performance issues. This paper describes the reengineering effort that ultimately enabled it to reach much more acceptable levels of performance, by using appropr...
Improving the performance of a Publish-Subscribe message broker
Rocha, Rafael; Lino Ferreira, Luis; Maia, Claudio; Souto, Pedro; Varga, PalThe Arrowhead Framework, a SOA-based framework for IoT applications, provides the Event Handler system: a publish/subscribe broker implemented with REST/HTTP(S). However, the existing implementation of the Event Handler suffers from message latency problems that are not acceptable for industrial applications. Thus, this paper describes the refactoring process of this system that enabled it to reach acceptable l...
Current advancements on maintenance for household appliances
Lino Ferreira, Luis; Albano, Michele; Rocha, Rafael; Costa, Miguel; Machado Silva, Ana; Silva, Marlos; Matos, Luísa; Afonso Landeck, JorgeThis communication describes research and development directions that are being explored for the creation of a maintenance system for home appliances. The solution will enable a faster and more accurate automation of after-sale services for home appliances. It will be based on three tiers: data acquisition, data analysis and business tiers. The communication provides a context for the work, both regarding the a...
Remote maintenance support with the aid of cyber-physical systems and cloud tec...
Jantunen, Erkki; Gorostegui, Unai; Zurutuza, Urko; Albano, Michele; Lino Ferreira, Luis; Hegedűs, Csaba; Campos, JaimeThis article discusses how a business model based on traditional maintenance can evolve to generate servitization strategies, with the help of remote maintenance support. The application of cyber-physical systems and cloud technologies play a key role for such maintenance purposes. In fact, the utilization of large quantities of data collected on machines and their processing by means of advanced techniques suc...
Introduction to the special section on Real time computing and distributed systems
García-Valls, Marisol; Lino Ferreira, LuisModern distributed systems are increasingly complex both on their architectural design and on the computational logic that they execute. Their timely operation is challenged, which is critical for some domains such as cyber-physical systems where timeliness and dynamic behavior must be satisfied simultaneously. Providing real-time operation whereas supporting the inherent dynamic behavior of cyber-physical syst...
The Arrowhead Framework applied to Energy Management
Rocha, Rafael; Albano, Michele; Lino Ferreira, Luis; Relvas, Flávio; Matos, LuisaEnergy management in buildings can provide massive benefits in financial and energy saving terms. It is possible to optimize energy usage with smart grid techniques, where the benefits are enhanced when the energy consumer can trade the energy on energy markets, since it forces energy providers to compete with each other on the energy price. However, two hurdles oppose this approach: the devices providing contr...
Towards a Framework for Interoperable and Interconnected CPS-populated Systems ...
di Orio, Giovanni; Maló, Pedro; Barata, José; Albano, Michele; Lino Ferreira, LuisCyber-Physical Systems (CPS) are creating new market opportunities and business models for all kind of European Industries. CPS-based platforms are increasing in their size and target application areas in a steady manner. However, even if progress is made every day supported by continuous technological advancements, CPS application and deployment is still challenging. Many solutions have been made available or ...
The Industrial Internet of Things
Albano, Michele; Silva, José Bruno; Lino Ferreira, LuisThe application of the Internet of Things to manufacturing is the driving force of the new industrial revolution (Industrie 4.0). In fact, most activities in the manufacturing industry can benefit from the data collected in the context of the industrial process. The Industrial Internet of Things (IIoT), whose pillars are the usage of IP communication between the devices and making the devices accessible through...
A Pilot for Proactive Maintenance in Industry 4.0
Lino Ferreira, Luis; Albano, Michele; Silva, José; Martinho, Diogo; Marreiros, Goreti; di Orio, Giovanni; Maló, Pedro; Ferreira, HugoThe reliability and safety of industrial machines depends on their timely maintenance. The integration of Cyber Physical Systems within the maintenance process enables both continuous machine monitoring and the application of advanced techniques for predictive and proactive machine maintenance. The building blocks for this revolution – embedded sensors, efficient preprocessing capabilities, ubiquitous connectio...