Abstract

The color sorting machines inspect grains by means of sensors and remove contaminants by a short burst of compressed air by using the color difference. Grain Sorting machines are successfully being used in the rice milling industry for long time. The color sorters are used in the grain cleaning to remove unwanted materials like dust particles, black tip, burnt, other discolored grains and other inner contaminants. Today’s advanced color sensors are robust, compact, requires less maintenance and consumes very little energy. Hence, these color sensors can be considered for inclusion in any modern grain cleaning plant. This paper aims to develop Calib_IO, Wave Generation and Clock Generation modules for grain sorting machine to remove unwanted materials like dust particles, black tip, burnt, other discolored grains and other inner contaminants and to increase its processing speed. Clock generation module is designed using Quartus II software and is implemented in Cyclone IV E (FPGA KIT) that incorporates compact color sensors for sorting grains.