Therefore, there is a trade-off for the appropriate size of the filter. On the other hand, a filter too large will blur the detailed features because all pixels from the receptive field through the filter will be combined into one pixel at the output feature map. Therefore, the higher resolution of the image, then you can expect a larger filter. Usually, it is in a square shape, and you can consider that as a window or receptive field to look at the input image. The most important hyperparameter to a convolutional layer is the size of the filter. Model.fit(X_train_scaled, y_train, validation_data=(X_test_scaled, y_test), epochs=25, batch_size=32)įrom the above, you can see that the features extracted are more abstract and less recognizable. To achieve the best performance, adjustments were made regarding the speed and quantity of quinoa, establishing 24 rows with an elevation of 22 degrees with respect to the horizontal axis, having achieved the goal of 5 kg per hour and obtained the homogeneity of quinoa grains with high efficiency and better quality for marketing.From import Sequentialįrom import Conv2D, Dropout, MaxPooling2D, Flatten, Denseįrom import MaxNormįrom 10 import load_data The parts were built with steel materials and some parts with PLA filament manufactured with 3D printer electronic control system, using a microcontroller for adapting the IR sensor signal and controlling the electro actuators for the selection of homogeneous quinoa according to the allowed color parameters and mechanical operation control, using two motors, one for the dosing of quinoa grains and the other for the movement of the conveyor belt. The main parts of the machine include the design of the mechanical structure comprising three zones: feeding, transport and processing and storage. The purpose of the study was to design and build a prototype machine that classifies quinoa grains according to the desired color. Because its harvests do not always have a homogeneous color, some companies have been using sorting machines for quinoa that are adapted from other cereals, whose operation does not guarantee the desired efficiency. Quinoa (Chenopodium quinoa) is one of the main grains of a domesticated species native to the high Andean plains and valleys. (2017) (17) Where ω is the radial deformation or angle of twist in radians, τ is the maximum torsional shear stress of the shaft (N/m 2 ), G is modulus of rigidity of the shaft, r is radius of shaft Design of the Mixing Cylinder The volume of the mixing cylinder was assumed to be 2 times the volume of its content in order to avoid spilling of the material (Olaoye and Babatunde, 2001) ' + ' + ' + ' > ) (19) where, Vsn is volume of the shea paste (m 3 ), Vw is volume of the water, Vb is volume of the blade, Vsh is volume of the shaft Working Procedure of the Machine The mixing blade was fixed on the shaft inside the mixing tank or container. The mass of mixing blade was computed using the following equation reported by Gana et al. Mass of water to be used is assumed to be three times the mass of the paste in order to have proper extraction of the oil and is given as Mw = 3 x MP (7) Where Mw is mass water (kg), MP= mass of paste (kg), Mass of Mixing Blade The mass of the mixing blade is vital in computation of the power requirement of the machine.
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