Naslov
Sugar/ethanol level measurement in liquids using analog refractometer and digital image processing

Autori
Kubat, Toni ; Kovacevic, Ivana ; Aleksi, Ivan ; Matić, Tomislav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
PROCEEDINGS OF ELMAR-2022 / Muštra, Mario ; Zovko-Cihlar, Branka ; Vuković, Josip - Zagreb : Institute of Electrical and Electronics Engineers (IEEE), 2022, 153-157

ISBN
978-1-6654-7002-5

Skup
64th International Symposium ELMAR-2022

Mjesto i datum
Zadar, Hrvatska, 12.09.2022. - 14.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Sugar/ethanol level , Analog refractometer , Internet of things , Remote monitoring , Image processing

Sažetak
This paper presents a novel method for remote monitoring sugar/ethanol levels in liquids using an analog refractometer, a digital camera, and an embedded Internet of Things (IoT) device. The main goal is to develop a cost-effective technology that allows remote measurement of this critical wine parameter. A printed 3D model is used for component mounting to keep a constant lens focus. Color image captured with the proposed device is sent via Wi-Fi network to a remote server for processing. Image processing methods are utilized to convert the image from the refractometer’s Oechsle scale to the sugar/ethanol level value. The device is tested with different levels of soluble sugars, and the results are compared with human readings. The conducted test gives promising results with less than 2 % relative error for sugar levels in the winemaking process. The proposed device can be used for sugar/ethanol level measurement during wine production. Flexibility and openness of the proposed IoT system has advantage over the existing solutions for sugar/ethanol measurements.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo, Informacijske i komunikacijske znanosti

POVEZANOST RADA