Sistema eletrônico para acionamento de disco dosador de sementes

Abstract

Planting is one of the most critical stages in a crop cycle and can cause huge losses when not efficiently performed, aiming at the best planting quality. This work aimed to improve the seed distribution of a pneumatic seeder using an electronic system to the dosing disc control. The system was composed of electronic components divided into controller and actuator emitter, where the emitter had the function of informing the actuator the input data so that through equations the actuator control was made, the algorithm responsible for the system control was developed in the Arduino software 1.8.8. After field tests, good efficiencies were observed for low sower displacement speeds, but system limitations were observed for high speeds, where the actuator was not able to develop the necessary rotation of the dosing disc to obtain the desired amount of seeds. The tests resulted in satisfactory data regarding the functioning of the mechanisms and software developed with the stepping motor rotation limitation that must be adequately responsive to travel speeds greater than 10 steps per second.