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A Prototype of a Monitoring Sensor System for Stored Grains in a Real-world Setting

Authors:
Jose Pessoa
Sergio Soares
Victor Neto

Keywords: silo; silo-bolsa; grain; soy; corn.

Abstract:
This paper presents a further step in the sequence of studies and developments of instrumentation for monitoring grains in silo bags. The final deliverable of this project will be a monitoring system that includes sensor capsules for detecting the ecosystem conditions within a silo bag: the electronics, communication protocols, a low Earth orbit satellite, and a central data storage and analysis unit. This document presents partial results from the relevant environment application of a sensor-capsule model. In a bag of approximately 1 cubic meter containing maize, three capsules were installed in positions that were expected to detect different environmental conditions within the bag. Probe 63 was installed near the upper surface of the bag, more exposed to solar radiation. Probe 64 was installed near the center of the bag; and Probe 65 was installed near the base of the bag, where it received less solar radiation but was more exposed to heat transfer by conduction. The experiment served as a proof of concept for the terrestrial component of the monitoring system, and with it, the requirements for its classification at Technology Readiness Level (TRL) 7 were finalized. The experiment also allowed for the identification of the effect of sensor position within the silo and the correlation between the variables (temperature, humidity, and CO2 concentration)

Pages: 26 to 30

Copyright: Copyright (c) IARIA, 2025

Publication date: May 18, 2025

Published in: conference

ISSN: 2519-836X

ISBN: 978-1-68558-273-9

Location: Nice, France

Dates: from May 18, 2025 to May 22, 2025