Design of DC motor operation monitoring system based on Matlab GUI

As an indispensable part of life and industry, DC motor has higher and higher requirements for its operation. If the monitoring interface is used to display and control the speed of DC motor to meet the functional requirements of different environments, the complex links of field monitoring and control can be greatly simplified. Therefore, DC motor operation monitoring system is designed in this paper. The system is mainly composed of two parts: upper computer system and lower computer system. The upper computer is based on the GUI motor operation monitoring system, which can display the motor voltage, current, speed and waveform in real time on the interface. At the same time, the upper computer software can realize the PID control function of the motor speed. The lower computer uses STM32 single-chip microcomputer minimum system, which is used to collect the motor speed, DC motor terminal voltage, and receive the upper computer speed information and generate the corresponding duty cycle PWM signal to speed the motor. Experiments show that the system can directly modify PID parameters through GUI interface to adapt to different motor speed regulation. At the same time, the system has stable operation, friendly human-machine interface, simple and convenient operation. The design of the whole system has certain practical significance for the fields of automatic control and electric drive.