"基于STC89C52单片机的蹲便器自动抽纸系统设计研究"

The graduation thesis "Design of Automatic Paper Drawing System Based on Single Chip Microcomputer" is a project completed by undergraduate students in 2014. The thesis focuses on the design and implementation of an automatic paper drawing system for squat toilets, utilizing the STC89C52 single-chip microcomputer. The system consists of various components including the single-chip microcomputer, infrared sensor, laser sensor, stepper motor, and control modules. The single-chip microcomputer is responsible for processing the data collected and communicating with the control modules. The system uses infrared sensors to detect the presence of individuals within its range, based on the energy radiated by infrared rays. When someone enters the system's range, the infrared sensor sends a signal to the central system and activates an indicator light to alert the user. Subsequently, by pressing a button, the system automatically dispenses a certain length of paper once the user is ready. Through practical experimentation, the team successfully developed the automatic paper drawing system and captured images of the physical prototype. The system is constructed using simple materials and demonstrates feasibility in both method and material selection. In conclusion, the automatic paper drawing system based on a single-chip microcomputer offers an innovative solution for enhancing user convenience and hygiene in restroom facilities. The system effectively combines advanced technology with user-friendly design, providing a practical and efficient solution for the modern toilet-going experience.