CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishEtherCAT is a real-time Ethernet protocol mainly de¬signed for periodic real-time transmission in factory automation. As EtherCAT does not provide efficient mechan¬isms to transmit aperiodic real-time messages, recently a solution to this problem, called an EDF-based Swapping approach, was proposed. Such an approach implements a swapping policy based on the Earliest Deadline First algorithm. The approach proposed in this paper, called a Flexible EDFS, introduces two novel features. First, it reduces the overhead introduced when multiple aperiodic messages have to be transmitted. Second, it provides for variable cycle times according to the aperiodic real-time workload. The paper describes the proposed approach and presents comparative assessments, obtained through OMNeT++ simulations, with the EtherCAT standard and the original EDF-based Swapping.
| Titolo: | A Flexible Mechanism for Efficient Transmission of Aperiodic Real-time Messages over EtherCAT networks |
| Autori interni: | |
| Data di pubblicazione: | 2014 |
| Handle: | http://hdl.handle.net/20.500.11769/73050 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
File in questo prodotto:
http://hdl.handle.net/20.500.11769/73050
Copyright © 2020