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Article

A Wireless Sensor Network Deployment for Soil Moisture Monitoring in Precision Agriculture

Instituto de Investigación Para la Gestión Integrada de Zonas Costeras (IGIC), Universitat Politècnica de València, Paraninf 1, 46730 Valencia, Spain
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Author to whom correspondence should be addressed.
Academic Editors: Vicenç Puig and Miquel À. Cugueró-Escofet
Received: 26 September 2021 / Revised: 17 October 2021 / Accepted: 27 October 2021 / Published: 30 October 2021
The use of precision agriculture is becoming more and more necessary to provide food for the world’s growing population, as well as to reduce environmental impact and enhance the usage of limited natural resources. One of the main drawbacks that hinder the use of precision agriculture is the cost of technological immersion in the sector. For farmers, it is necessary to provide low-cost and robust systems as well as reliability. Toward this end, this paper presents a wireless sensor network of low-cost sensor nodes for soil moisture that can help farmers optimize the irrigation processes in precision agriculture. Each wireless node is composed of four soil moisture sensors that are able to measure the moisture at different depths. Each sensor is composed of two coils wound onto a plastic pipe. The sensor operation is based on mutual induction between coils that allow monitoring the percentage of water content in the soil. Several prototypes with different features have been tested. The prototype that has offered better results has a winding ratio of 1:2 with 15 and 30 spires working at 93 kHz. We also have developed a specific communication protocol to improve the performance of the whole system. Finally, the wireless network was tested, in a real, cultivated plot of citrus trees, in terms of coverage and received signal strength indicator (RSSI) to check losses due to vegetation. View Full-Text
Keywords: electromagnetic induction; soil moisture; precision agriculture; low cost; water management; Internet of Things (IoT); wireless sensor network electromagnetic induction; soil moisture; precision agriculture; low cost; water management; Internet of Things (IoT); wireless sensor network
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MDPI and ACS Style

Lloret, J.; Sendra, S.; Garcia, L.; Jimenez, J.M. A Wireless Sensor Network Deployment for Soil Moisture Monitoring in Precision Agriculture. Sensors 2021, 21, 7243. https://0-doi-org.brum.beds.ac.uk/10.3390/s21217243

AMA Style

Lloret J, Sendra S, Garcia L, Jimenez JM. A Wireless Sensor Network Deployment for Soil Moisture Monitoring in Precision Agriculture. Sensors. 2021; 21(21):7243. https://0-doi-org.brum.beds.ac.uk/10.3390/s21217243

Chicago/Turabian Style

Lloret, Jaime, Sandra Sendra, Laura Garcia, and Jose M. Jimenez. 2021. "A Wireless Sensor Network Deployment for Soil Moisture Monitoring in Precision Agriculture" Sensors 21, no. 21: 7243. https://0-doi-org.brum.beds.ac.uk/10.3390/s21217243

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