Design of the Watermelon Picking Control System

At present, the planting area of watermelon in our country is continuously expanding but the picking of watermelon is still completed by relying on traditional manual labor, which is time-consuming and inefficient. This paper designed a control system to automatically pick watermelon by relying on microprocessor and upper computer and adopting wireless transmission technique. Based on the real-time images of the watermelon collected by wireless camera, this system converted the three-dimensional coordinates of the watermelon into the control codes for controlling motor movement in the upper computer by binocular vision localization algorithm, and wirelessly transmit the control codes to the microprocessor, then the microprocessor gates each deceleration stepping motor in sequence and control them accordingly, by which the movement of the mechanical arm and the picking movement of the end effector can be accurately controlled. The experimental result showed that this system is accurate in control, good in operability and strong in practicability.