基于单片机的车速里程表设计及简化倒计时器-学位论文

"Based on the single-chip microcontroller control design of the vehicle speed odometer-thesis.doc" discusses the in-depth application of single-chip microcontrollers in real-time detection and automatic control systems. It emphasizes the importance of integrating specific hardware structures and software based on the characteristics of the application object. The use of pressure sensors in the analog multi-channel pressure system is highlighted, which enables the system to analyze pressure overloads and issue warnings. Additionally, the electronic scale principle is employed to accurately calculate the amount of an object based on the input unit price. The thesis also presents the design and production of a simple countdown timer, utilizing a four-digit LED digital display. To simplify the circuit and reduce costs, a software-based interface method is adopted instead of dedicated hardware decoders. The keywords include single-chip microcontroller, AT89S51, LED digital display, Keil C51, and countdown timer. This thesis aims to provide a comprehensive understanding of single-chip microcontroller applications in various control and detection systems, contributing to the advancement of technology in this field."