Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Design of a Tension Infiltrometer with Automated Data Collection through a SCADA System

Version 1 : Received: 22 August 2023 / Approved: 6 September 2023 / Online: 6 September 2023 (09:49:39 CEST)

A peer-reviewed article of this Preprint also exists.

Morales-Ortega, D.A.; Cambrón-Sandoval, V.H.; Ruiz-González, I.; Luna-Soria, H.; Hernández-Guerrero, J.A.; García-Guzmán, G. Design of a Tension Infiltrometer with Automated Data Collection Using a Supervisory Control and Data Acquisition System. Sensors 2023, 23, 9489. Morales-Ortega, D.A.; Cambrón-Sandoval, V.H.; Ruiz-González, I.; Luna-Soria, H.; Hernández-Guerrero, J.A.; García-Guzmán, G. Design of a Tension Infiltrometer with Automated Data Collection Using a Supervisory Control and Data Acquisition System. Sensors 2023, 23, 9489.

Abstract

One of the interactions that has been studied in recent decades under the ecohydrological approach is infiltration, which is difficult to determine because the existing methods for estimation depends on certain variables that are difficult to establish or identify, and in other cases, the implementation of instrumentation is expensive. Given this, saturated hydraulic conductivity has been the descriptive variable of the infiltration process by recent authors, being understood as the conduction of water that occurs through the soil and its composition through the vegetation cover. The present design generated an easily accessible portable instrumentation model for the monitoring and collection of infiltration data in situ for basins and ecosystems with different land uses, in an automated manner with the objective of determining the vegetation patterns necessary to sustain the infiltration function. The INDI-INECOL tension infiltrometer [1] was chosen as the reference instrument. It evaluates the saturated hydraulic conductivity based on a column of water that descends through the system and it is exchanged in the soil by the air between the pores. To automate data collection, a measurement system has been proposed through a SCADA system, which is defined as a control, action, decision, storage and data recording system. This system collects field data from a sensor VL053L0X connected to a master station, in our case an Arduino board UNO, connected through the serial port and by a graphical user interface programmed on Python, to display, storage and enrichment of the sensor data and finally to be exported in files suitable for Microsoft Excel.

Keywords

Infiltration; SCADA system; Automated instrumentation

Subject

Environmental and Earth Sciences, Sustainable Science and Technology

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