In:
TecnoLógicas, Instituto Tecnologico Metropolitano (ITM), Vol. 23, No. 47 ( 2020-01-30), p. 121-136
Abstract:
In this study, factorial experiments were conducted in two different scenarios to design a Wireless Sensor Network for monitoring a cocoa crop in a rural area in Colombia. Node sensors measured temperature, relative humidity, soil moisture, Ultra-Violet light, and visible light intensity. The factors considered in the experiments were distance between node sensors, height from the ground, and type of antenna; in turn, Received Signal Strength Indicator and data transfer time were the outputs. The wireless sensor network was deployed in the crop, covering approximately 3 % of the area and using 7 different nodes in a cluster tree topology. First, an open field scenario with line of sight was used to determine the appropriate height of the node sensors. Second, a scenario in the actual cocoa crop was utilized to find the appropriate distance between modules and type of antenna. We found, based on our calculations and experimental data, that a height of 1.25 m was required to avoid the Fresnel zone and improve the RSSI of the network. Furthermore, we determined that a distance below 35 m was needed to guarantee signal reception and avoid long data transfer times. The wire antenna exhibited a better performance. Finally, the proposed methodology and monitoring system can be used for agronomic applications in rural areas in Colombia to increase crop yield.
Type of Medium:
Online Resource
ISSN:
2256-5337
,
0123-7799
DOI:
10.22430/22565337.1361
Language:
Unknown
Publisher:
Instituto Tecnologico Metropolitano (ITM)
Publication Date:
2020
detail.hit.zdb_id:
2586791-X
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