Multiparametric Monitoring in Equatorian Tomato Greenhouses (II): Energy Consumption Dynamics
AbstractTomato greenhouses are a crucial element in the Equadorian economy. Wireless sensor networks (WSNs) have received much attention in recent years in specialized applications such as precision farming. The energy consumption in WSNs is relevant nowadays for their adequate operation, and attention is being paid to analyzing the affecting factors, energy optimization techniques working on the network hardware or software, and characterizing the consumption in the nodes (especially in the ZigBee standard). However, limited information exists on the analysis of the consumption dynamics in each node, across different network technologies and communication topologies, or on the incidence of data transmission speed. The present study aims to provide a detailed analysis of the dynamics of the energy consumption for tomato greenhouse monitoring in Ecuador, in three types of WSNs, namely, ZigBee with star topology, ZigBee with mesh topology (referred to here as DigiMesh), and WiFi with access point topology. The networks were installed and maintained in operation with a line of sight between nodes and a 2-m length, whereas the energy consumption measurements of each node were acquired and stored in the laboratory. Each experiment was repeated ten times, and consumption measurements were taken every ten milliseconds at a rate of fifty thousand samples for each realization. The dynamics were scrutinized by analyzing the recorded time series using stochastic-process analysis methods, including amplitude probability functions and temporal autocorrelation, as well as bootstrap resampling techniques and representations of various embodiments with the so-called M-mode plots. Our results show that the energy consumption of each network strongly depends on the type of sensors installed in the nodes and on the network topology. Specifically, the CO
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Erazo-Rodas, M.; Sandoval-Moreno, M.; Muñoz-Romero, S.; Huerta, M.; Rivas-Lalaleo, D.; Rojo-Álvarez, J.L. Multiparametric Monitoring in Equatorian Tomato Greenhouses (II): Energy Consumption Dynamics. Sensors 2018, 18, 2556.
Erazo-Rodas M, Sandoval-Moreno M, Muñoz-Romero S, Huerta M, Rivas-Lalaleo D, Rojo-Álvarez JL. Multiparametric Monitoring in Equatorian Tomato Greenhouses (II): Energy Consumption Dynamics. Sensors. 2018; 18(8):2556.Chicago/Turabian Style
Erazo-Rodas, Mayra; Sandoval-Moreno, Mary; Muñoz-Romero, Sergio; Huerta, Mónica; Rivas-Lalaleo, David; Rojo-Álvarez, José L. 2018. "Multiparametric Monitoring in Equatorian Tomato Greenhouses (II): Energy Consumption Dynamics." Sensors 18, no. 8: 2556.
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