Implementation Of An Automated Color Sorting Machine

Abstract

Color sorting is a recurrent problem in the food industry. Such machines are necessary for sorting grainsi seeds or coffee. This project, entitled "Implementation of an automated Color Sortiig *fldinC, develops a proof of concept for color sorting by using candies. Given a random assorhent of candies, consisting of up to 4 different colors, the device will be able to sort trm by color in a reasonable time (maximum of 10 seconds per candy) and with accuracy highcr6m EflfA(4 candies out of 5sorted correctly). A g/pical color sensor is based on a photodiode which measure the intensity reflected by the object for a re4 green and blue light source. More advanced systems may use more colors or mole specifics colors, such orange light sources of different wavelength in order to detect the hue of an orange (the fruit). Some sensors, like the one used in this projec! used the same principle but with 3 or more photodiodes with geen, red and blue filters in front of them. In this case the light source may be white.