基于Multisim10.0的电子时钟系统优化设计  

Optimization Design of Digital Clock System Based on Multisim 10.0

作　　者：程永茂 龚靖博 李湉雨 CHENG Yongmao;GONG Jingbo;LI Tianyu(Naval Aeronautical University,Yantai 264001,China)

机构地区：[1]海军航空大学,山东烟台264001

出　　处：《仪表技术》2020年第12期28-32,共5页Instrumentation Technology

摘　　要：电子时钟系统是一种典型的数字电路系统,可以实现时、分、秒的计时显示,广泛应用于多种场合。在Multisim软件环境下,对电子时钟系统进行了优化设计。使用时间基准信号单元、译码显示单元、计时单元、校时单元、报时单元以及闹钟单元电路,实现了时、分、秒计时系统的准确显示和校准,整点前10 s的4低1高响声提示报时,校时单元与正常计时单元的相互隔离互不干扰以及具有便捷的"星期几"显示和闹钟功能。通过仿真实验测试结果表明,设计的电子时钟系统运行稳定可靠,能够实现各项功能,具有较好的实用性。Digital clock system is one of the typical digital circuit systems.It is widely used in multiple occasions to display time directly.Optimization design of digital clock based on Multisim 10.0 is researched in this paper.Time reference signal generator unit,decoding display unit,timing unit,calibration unit,time telling unit and alarm unit are designed to display and calibrate time in hour,minute and second precisely.The system is designed to tell time in 4 short beeps and 1 long beep 10 seconds ahead of every hour.Timing unit and calibration unit are designed to work separately.Current day of the week is displayed conveniently in the system.Alarm clock function is added to the digital clock system.Simulation result shows that the digital clock system works stably and in good practicality.All functions of the system are performed smoothly.

关 键 词：电子时钟系统 MULTISIM 校时 计数器 555数字振荡器 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]