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Open AccessArticle

IR Thermography from UAVs to Monitor Thermal Anomalies in the Envelopes of Traditional Wine Cellars: Field Test

1
Agroforestry Engineering Department, University of Santiago de Compostela (USC), Higher Polytechnic School of Engineering, 27002 Lugo, Spain
2
Agroforestry Engineering Department, Polytechnic University of Madrid (UPM), School of Agricultural, Food and Biosystems Engineering, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(12), 1424; https://doi.org/10.3390/rs11121424
Received: 7 May 2019 / Revised: 10 June 2019 / Accepted: 13 June 2019 / Published: 14 June 2019
(This article belongs to the Special Issue Trends in UAV Remote Sensing Applications)
Infrared thermography (IRT) techniques for building inspection are currently becoming increasingly popular as non-destructive methods that provide valuable information about surface temperature (ST) and ST contrast (delta-T). With the advent of unmanned aerial vehicle (UAV)-mounted thermal cameras, IRT technology is now endowed with improved flexibility from an aerial perspective for the study of building envelopes. A case study cellar in Northwest (NW) Spain is used to assess the capability and reliability of low-altitude passive IRT in evaluating a typical semi-buried building. The study comparatively assesses the use of a pole-mounted FLIR B335 camera and a drone-mounted FLIR Vue Pro R camera for this purpose. Both tested IRT systems demonstrate good effectiveness in detecting thermal anomalies (e.g., thermal bridges, air leakages, constructive singularities, and moisture in the walls of the cellar) but pose some difficulties in performing accurate ST measurements under real operating conditions. Working with UAVs gives great flexibility for the inspection, but the angle of view strongly influences the radiometric data captured and must be taken into account to avoid disturbances due to specular reflections. View Full-Text
Keywords: drone; thermal inspection; heat leaks; cellar; winery; thermal bridges; infrared thermography; wine maturation; UAS drone; thermal inspection; heat leaks; cellar; winery; thermal bridges; infrared thermography; wine maturation; UAS
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MDPI and ACS Style

Ortiz-Sanz, J.; Gil-Docampo, M.; Arza-García, M.; Cañas-Guerrero, I. IR Thermography from UAVs to Monitor Thermal Anomalies in the Envelopes of Traditional Wine Cellars: Field Test. Remote Sens. 2019, 11, 1424.

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