A High Availability Networked Control System Architecture for Precision Agriculture
| Autor: | Hany M. ElSayed, Amr M. Shaarawi, Ramez M. Daoud, Malak Y. ElSalamouny, Norhan Mostafa, Hassan H. Halawa, Ahmed Khattab, Hassanein H. Amer, Hassan Ibrahim |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Downtime Computer science Distributed computing ComputerApplications_COMPUTERSINOTHERSYSTEMS Context (language use) Fault tolerance 04 agricultural and veterinary sciences Networked control system 01 natural sciences Packet loss Control theory 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Precision agriculture Wireless sensor network 010606 plant biology & botany |
| Zdroj: | 2018 International Conference on Computer and Applications (ICCA). |
| DOI: | 10.1109/comapp.2018.8460420 |
| Popis: | Precision agriculture systems are usually studied in the context of Wireless Sensor Networks. In this paper, a hierarchical Networked Control System (NCS) is proposed for two Greenhouses. This system is built on top of switched Ethernet and Wi-Fi, and is IoT-based. Fire and CO2 sensors imposed a 1s real-time deadline. It is shown how to allocate Wi-Fi channels to prevent interference in this relatively large NCS. Riverbed simulations proved that the two-Greenhouse NCS did not suffer any packet loss and was able to meet real-time constraints. Fault Tolerance at the controller level is then added to the system. Riverbed simulations again proved that the system can operate as a 1-out-of-2 system; if one controller fails, the other controller can operate both greenhouses. A case study is then presented to show that fault tolerance can decrease downtime which is a very important advantage especially in developing countries. |
| Databáze: | OpenAIRE |
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