A design of elevator positioning control system model

This paper presents a design of elevator positioning control system model based on the AT89S52 microcontroller. The model mainly includes MCU control module, stepper motor drive module, infrared detection module, LCD display module and keys module. The elevator’s running path is set by keys, the elevator’s running location is detected by the infrared binate tubes. Stepper motor is the executive component. MCU controls the speed and direction of the stepper motor by inputting pulse signals to its drive chip L298. LCD displays the real-time information of elevator’s running status. This elevator control system model can be targeted as a teaching model for college students to learn stepper motor’s drive and control.