Development of a Wind Tunnel Control System for Accurate Position Regulation

Abstract

This system uses the STM32F103C8T6 microcontroller to control and display the height of a table tennis ball in real-time. It consists of several key components including a microcontroller system, a driving device, an ultrasonic ranging circuit, a key circuit, and a display circuit. The system allows users to select the working mode, measures the distance to the ball using an ultrasonic module, and employs a closed-loop control system for precise height regulation. Key functionalities include the control of a DC motor by the microcontroller to manipulate the ball's position with wind force, and the use of Proportional-Integral-Derivative (PID) control for accurate height adjustment. The system's design is straightforward, which facilitates understanding and implementation, and it provides a high control accuracy and a real-time display of measurements. This setup effectively demonstrates the practical application of the STM32F103C8T6 microcontroller in controlling and monitoring a dynamic object like a table tennis ball.