@misc{10481/57732,
year = {2018},
month = {10},
url = {http://hdl.handle.net/10481/57732},
abstract = {Aquaculture is a growing industry, and its sustainability is crucial. One of its major environmental impacts is the uneaten feed that
pollutes the water. To minimize the uneaten feed, many systems have been developed. Nevertheless, current systems can be
improved by considering the fish position in the tank and the falling feed. In this paper, we propose a system based on fish
presence sensors set at different tank heights and a feed detection sensor located in the drainage tubes. The fish presence sensor
is based on light-dependent resistor (LDR). The calibration of these sensors is shown. When the output voltage is higher than
1.467 V, we can consider that fish are present. On the other side, the falling feed sensor is based on a CMOS sensor. The
calibration process is performed with 40 pictures. The summation of pixels, with brightness value between 0 and 15 in the blue
histogram, is used as an indicator of feed presence. If this value is higher than 520 pixels, we can consider that there is feed in
the picture. Moreover, a verification process of both sensors is done. The results of the verification confirm the calibration.
Finally, the operation of the system is shown.},
organization = {The authors acknowledged “Ministerio de Educación,
Cultura y Deporte,” through the “Ayudas para contratos predoctorales
de Formación del Profesorado Universitario
(FPU) (Convocatoria 2014)” (Grant number FPU14/02953).},
publisher = {Hindawi},
title = {The Use of Sensors for Monitoring the Feeding Process and Adjusting the Feed Supply Velocity in Fish Farms},
doi = {10.1155/2018/1060987},
author = {Parra, Lorena and García, Laura and Sendra Compte, Sandra and Lloret, Jaime},
}